Download Mitsubishi Mr. Slim NH33NBD Service manual
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OC120--1.qxp 24/6/97 12:20 AM Page 1 SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS No. OC120 TECHNICAL & SERVICE MANUAL Series PKH Wall Mounted <Indoor unit> PKH18FK PKH24FK PKH30FK PKH36FK / / / / PUH18EK PUH24EK PUH30EK PUH36EK CONTENTS 1. FEATURES ···········································2 2. SPECIFICATIONS·································5 3. DATA ·····················································6 4. OUTLINES AND DIMENSIONS··········16 5. WIRING DIAGRAM·····························22 6. REFRIGERANT SYSTEM DIAGRAM ······25 7. OPERATION FLOW-CHART ··············26 8. MICROPROCESSOR CONTROL·······30 9. TROUBLESHOOTING ························51 10. SYSTEM CONTROL ···························59 11. DISASSEMBLY INSTRUCTIONS ·······64 12. PARTS LIST········································71 13. OPTIONAL PARTS ·····························83 Indoor unit -CENTRALLY CONTROLLEDSTAND BY DEFROST ON CHECK DRY COOL HEAT CHECK SET TEMP TIMER OFF AUTO STOP AUTO START F HR LOW HIGH F AUTO RETURN CHECK TEST RUN POWER HEAT AUTO SET WARMER TEMPERATURE TIMER MODE ON/OFF COOL/DRY COOLER HOURS FAN SPEED LOW/HIOGH AIR UP/DOWN SWING STOP DISCHARGE CHECK TEST RUN MITSUBISHI ELECTRIC IFIED TO ARI A RT SC CE O AIR -CO Y EQ UIP MENT IFI NS C IO AIR ATIO N SE CT 10 S TA N DARD 2 O CE RT F UNIT AR R • G WITH YIN PL M NING ITIO ND MANUFAC TU RE REMOTE CONTROLLER • Models L IS E D T R The Slim Line. From Mitsubishi Electric. OC120--1.qxp 1 24/6/97 12:20 AM Page 2 FEATURES -CENTRALLY CONTROLLEDSTAND BY DEFROST ON CHECK DRY COOL HEAT CHECK SET TEMP TIMER OFF AUTO STOP AUTO START F HR LOW HIGH F AUTO RETURN CHECK TEST RUN ON/OFF POWER HEAT AUTO COOL/DRY SET WARMER TEMPERATURE TIMER MODE COOLER HOURS FAN SPEED LOW/HIOGH AIR UP/DOWN SWING STOP DISCHARGE CHECK TEST RUN MITSUBISHI ELECTRIC Indoor unit Remote controller Models Cooling capacity / Heating capacity PKH18FK PKH24FK PKH30FK PKH36FK 18,000 24,000 30,000 34,200 / / / / 18,600 25,000 33,000 38,000 [25,100] [31,500] [40,500] [45,500] Btu/h Btu/h Btu/h Btu/h PUH24EK Outdoor unit SEER 11.1 10.2 10.6 10.5 1. COMPACT DESIGN The PK series models have been downsized and now require such minimal wall space that they can even be installed above windows. For the PKH18/24FK, 13in of wall space between the ceiling and the window allows “above window” installation (14.5in for the PKH30/36FK) 2. A FURTHER REFINEMENT OF COMFORT WITH NOISE SUPPRESSION Remarkably low-noise operation has been achieved through the development of a “near-silent” fan and a design which minimizes airflow resistance. 3. AUTO FLAP SHUTTER With a simple flick of the OFF switch the air outlet can be closed off with a shutter. The shutter also functions as a flap during operation to adjust the air flow angle, with “Auto Angle 1” securing a comfortable air flow. 4. INSTALLATION : FAST AND ENDLESSLY ADAPTABLE (1) External piping An external piping connection of 24in and a very light body promote trouble-free installation for PKH18FK. (2) Multi-directional piping Multi directional drain and refrigerant piping rodically improves flexibility in selecting installation layouts. PKH18FK drain piping can be installed in 5 directions, while PKH30/36FK models boast refrigerant piping in 4 directions and drain piping in 2 directions. (3) Back plate installation guide The back plate installation guide gives clear instructions on installation positions. The enlarged back plate secures the unit firmly to the wall, while the support piece which lifts the unit makes left side piping work much easier. (4) Front power supply box The front power supply box allows electrical wiring work to be performed easily even after the indoor unit has been fully installed. All the screws for the indoor unit can be tightened from the front side thus ensuring smooth installation. (only for PKH18/24FK) (5) Easily removable filter The presence of thumbscrews on the filters means that the filters can be quickly and smoothly removed. (only for PKH30/36FK) 2 OC120--1.qxp 24/6/97 12:21 AM Page 3 5. ADVANCED MICROPROCESSOR (1) Easy to Use Microprocessor 1) Ultra-Thin Remote Controller The streamlined, square controller is designed to blend with any kind of interior and the adoption of a sophisticated microprocessor allows you to carry out a wide range of operations easily. 2) Ultra-Thin Remote Controller Units operation mode, set temperature, room temperature, timer setting, fan speed, louver operation, and air flow direction are displayed on the remote controller with the easily understood visual Liquid Crystal Display (LCD). 3) Convenient 24-Hour ON-OFF Timer The timer allows Mr.SLIM to be switched on or off automatically at the time is shown on the LCD. -CENTRALLY CONTROLLEDSTAND BY DEFROST ON POWER CHECK DRY COOL HEAT HEAT CHECK SET TEMP F TIMER OFF AUTO STOP AUTO START SET WARMER TEMPERATURE TIMER HR LOW HIGH AUTO ON/OFF COOL/DRY COOLER MODE HOURS FAN SPEED LOW/HIOGH AIR UP/DOWN SWING STOP DISCHARGE F AUTO RETURN CHECK TEST RUN CHECK TEST RUN MITSUBISHI ELECTRIC 4) Self-Diagnostic Feature Indicates Instantly In the rare case when a problem occurs, the unit stops operating and the set temperature indicator changes to the self-diagnostic indicator, indicating the location of the fault. If the check switch is pressed twice, the unit stops operating and the check mode is initiated. The cause of the most recent problem stored in the memory is displayed on the LCD. This is extremely useful for maintenance purposes. 5) Useful Memory Feature for Storing Instructions The previous set value is memorized so that constant temperature control can be obtained. This is convenient when, for example, a power failure occurs. (2) Non-polar Two-Wire Remote Controller Cables The non-polar, two-wire type remote controller cable is slim, installation is simple and troublefree. Remote controller wire can be extended up to 550 yards. (3) Automatic Cooling / Heating Changeover Operation An automatic cooling and heating changeover operation system is provided to ensure easy control and year-round air conditioning. Once the desired temperature is set, unit operation is switched automatically between cooling and heating, in accordance with the room temperatures as low as 23oF. 6. REDI-CHARGED REFRIGERANT SYSTEM PRE-CHARGE REFRIGERANT REQUIRED FOR MAXIMUM PIPING LENGTH AT SHIPMENT. PREVENTING TROUBLES DUE TO SHORTAGE OF REFRIGERANT. The unique refrigerant circuit and a large accumulator always controls the refrigerant to its optimum condition regardless of the length of 164ft maximum or 25ft minimum. The additional refrigerant charging work at the field which often caused uncertain problems heretofore is completely eliminated. This unique system serves to improve the quality of work and reliability, and also helps to speed up the installation work. Indoor unit Outdoor unit Indoor unit Outdoor unit 4•way valve Indoor heat exchanger Capillary tubes for cooling Restrictor valve 4•way valve Indoor heat exchanger Outdoor heat exchanger Accumulator Compressor Liquid section of piping HIgh-pressure liquid retrigerant Capillary tubes for heating Capillary tubes for heating Restrictor valve Restrictor valve Outdoor heat exchanger Accumulator Compressor Liquid section of piping Low-pressure two-phase retrigerant Capillary tubes for cooling Restrictor valve With normal circulation systems, a high-pressure refrigerant, condensed for cooling by the outdoor heat exacanger, is reduced in pressure by capillary tubes in the indoor unit after passing through the restrictor valve in the outdoor unit (see Figure 1). With the new circulation system, the direction of the restrictor valve is reversed as shown in Figure 2, and the condensed high pressure refrigerant is reduced in pressure by the capacity tubes in the outdoor unit. This results in a “twophase refrigerant” of reduced pressure in the liquid section of the piping, The density of this two-phase refrigerant is 1/3~ 1/2 of that of the high pressure liquid refrigerant, and thus is required in smaller amounts (see Figures 1 and 2). As a result, the length of the piping can be extended further, and the effects of height differences are reduced. These new circulation system are also equipped with a large accumulator which allows the refrigerant required for the 100ft piping length to be enclosed in the outdoor unit. The result is an air conditioner that requires no charging unless piping is extended beyond 100ft. 3 OC120--1.qxp 24/6/97 12:21 AM Page 4 7. HIGH RELIABILITY AND EASY SERVICING In addition to the self-diagnostic function, units are also equipped with a 3-minute time delay mechanism (cooling), an auto restart function, an emergency operation function, a test run switch, etc., to assure high reliability and easy servicing. 8. FOUR-WAY PIPING ACCESS MAKES INSTALLATION LAYOUT EASY Piping on the outdoor unit may be connected from either of four directions: front, rear, side or beneath the base. This easy-access design makes it possible to install a number of units in a compact arrangement at a single site. The outdoor unit allows for unheard-of flexibility in detemining a piping layout, thus greatly simplifying installation. 9. FRONT-ACCESS FACILITATES MAINTENANCE The outdoor unit has been designed with a frontaccess service panel that allows easy access to all maintenance point, regardless of the installation layout. What’s more, this front panel may be removed by loosening only two screws. It all adds up to greatly simplified maintenance work. 10. NITROGEN GAS IS CHARGED TO INDOOR UNIT Indoor unit and refrigerant pipes are charged with nitrogen gas (N2) instead of R-22 before shipment from the factory. 4 Red Front Base Right OC120--1.qxp 24/6/97 12:21 AM 2 Page 5 SPECIFICATIONS MODELS : PKH18/24/30/36FK Model PKH18FK PKH24FK PKH30FK PKH36FK 18,000 18,600[24,100/25,100] 10,700[16,200/17,200] 5.3 1.79 1.56[3.16/3.46] 1.34[2.94/3.24] 10.1 11.1 7.2 3.5 2.3 PKH18FK 24,000 25,000[30,500/31,500] 14,700[20,200/21,200] 7.0 2.36 2.37[3.97/4.27] 1.92[3.52/3.82] 10.2 10.2 6.8 3.1 2.2 PKH24FK Munsell 3.4Y 7.7/0.8 208/230,1,60 15 12 0.5 7.6/8.4[1.6/1.9] 710-530 640-480 43-35 1 30,000 33,000[39,100/40,500] 19,000[25,100/26,500] 9.1 3.12 3.02[4.82/5.22] 2.48[4.28/4.68] 9.6 10.6 7.1 3.2 2.2 PKH30FK 34,200 38,000[44,100/45,500] 19,600[25,700/27,100] 10.5 3.44 3.54[5.34/5.74] 2.65[4.45/4.85] 9.9 10.5 6.9 3.1 2.2 PKH36FK 15 13 0.6 8.7/9.6[1.8/2.2] 990-780 890-700 46-41 1 13 0.6 8.7/9.6[1.8/2.2] 990-780 890-700 46-41 1 Item Capacity Cooling *1 Heating *1 Heating *2 Moisture removal Power Consomption EER SEER HSPF Cooling *1 Heating *1 Heating *2 *1 Btu/h Btu/h Btu/h Pints/h kW kW kW *1 *2 COP INDOOR UNIT MODELS External finish Power supply V,phase,Hz Max.fuse size (time dalay) A Min.ampacity A Fan motor F.L.A. Booster heater A(kW) Dry CFM Airflow Hi-Lo Wet CFM Sound level Hi-Lo dB(A) Cond. drain connection OD W in. Dimensions D in. H in. Weight in. OUTDOOR UNIT MODELS lb External finish Power supply Max.fuse size (time dalay) V,phase,Hz Min.ampacity A Fan motor A Model (type) F.L.A. Compressor R.L.A. Crankcase heater L.R.A. Refrigerant control A(W) Defrost method Sound level dB(A) W Dimensions D in. H in. Weight in. REMOTE CONTROLLER lb Control voltage (by built-in transformer) REFRIGERANT PIPING Liquid Pipe size Gas in. Connection Indoors in. method Outdoors Between the indoor Height difference ft & outdoor units Piping length ft 15 12 0.5 7.6/8.4[1.6/1.9] 710-530 640-480 43-35 1 55-1/8 66-5/32 9-1/4 13-3/8 57 PUH18EK 57 PUH24EK Munsell 5Y 7/1 208/230,1,60 20 16 0.65+0.65 NH33NBD 11.5 54 0.16/0.17[33/39] Capillary tube Reverse cycle 55 20 16 0.75 RH247NAB 12 37 0.11/0.12[23/28] 53 34-1/4 11-5/8 33-1/2 131 66 PHU30EK 66 PUH36EK 30 20 0.75+0.75 NH41NAD 14.0 73 0.16/0.17[33/39] 30 22 0.75+0.75 NH47ND 17.5 87 0.16/0.17[33/39] 55 38-3/16 13-9/16 49-9/16 245 38-3/16 13-9/16 49-9/16 246 49-9/16 202 With indoor unit Indoor unit-remote controller:DC12V. Indoor unit-outdoor unit:DC12V Not supplied(optional parts) 1/2 3/8 3/4 5/8 Flared Flared 130 164 130 164 1/2 3/4 164 164 NOTES : *1.Rating conditions (cooling)-indoor : 80˚FDB,67˚FWB outdoor : 95˚FDB,75˚FWB. (heating)-indoor : 70˚FDB,60˚FWB outdoor : 47˚FDB,43˚FWB. *2.Rating conditions (heating)-indoor : 70˚FDB,60˚FWB outdoor : 17˚FDB,15˚FWB. *3.Heating capacity and power consumption in [ ] includes heater operation at 208/230V. Operating range Cooling Heating Maximum Minimum Maximum Minimum Indoor intake air temperature Outdoor intake air temperature 95˚FDB,71˚FWB 67˚FDB,57˚FWB 80˚FDB,67˚FWB 70˚FDB,68˚FWB 115˚FDB 0˚FDB 75˚FDB,65˚FWB 17˚FDB,15˚FWB 5 OC120--1.qxp 3 24/6/97 12:21 AM Page 6 DATA MODELS : PKH18/24/30/36FK 1. PERFORMANS DATA 1) COOLING CAPACITY Models Models Airflow (CFM) B.F Outdoor intake air DB temperature(˚F) 75 85 95 115 TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC 71 21.0 14.4 1.56 20.2 13.9 1.69 19.4 13.3 1.84 18.5 12.7 1.99 17.6 12.1 2.15 67 19.5 16.0 1.52 18.8 15.4 1.65 18.0 14.8 1.79 17.1 14.0 1.93 16.3 13.4 2.07 63 18.2 17.4 1.49 17.5 16.7 1.61 16.8 16.0 1.74 15.9 15.2 1.88 15.1 14.4 2.01 DB 75¡F (50%RH) 62.5 18.1 15.5 1.49 17.4 14.9 1.61 16.6 14.3 1.74 15.8 13.6 1.87 15.0 12.9 2.00 DB 72¡F (50%RH) 60 17.2 15.1 1.47 16.6 14.5 1.58 15.8 13.8 1.70 15.0 13.1 1.84 14.2 12.4 1.96 DB 70¡F (50%RH) 59 16.8 14.5 1.46 16.2 14.0 1.57 15.5 13.4 1.69 14.6 12.6 1.83 13.9 12.0 1.94 71 27.9 16.1 2.05 26.9 15.5 2.23 25.8 14.9 2.43 24.6 14.2 2.63 23.4 13.5 2.84 67 26.1 18.5 2.01 25.1 17.8 2.18 24.0 17.0 2.36 22.9 16.3 2.55 21.7 15.4 2.73 63 24.3 20.5 1.97 23.4 19.7 2.12 22.4 18.9 2.30 21.3 18.0 2.47 20.1 17.0 2.65 DB 75¡F (50%RH) 62.5 24.1 18.0 1.96 23.2 17.4 2.12 22.2 16.6 2.29 21.1 15.8 2.47 19.9 14.9 2.64 DB 72¡F (50%RH) 60 23.0 17.6 1.94 22.1 16.9 2.09 21.1 16.2 2.25 20.1 15.4 2.41 18.9 14.5 2.58 DB 70¡F (50%RH) 59 22.5 17.0 1.93 21.7 16.4 2.07 20.7 15.6 2.24 19.7 14.9 2.39 18.5 14.0 2.56 71 34.9 21.5 2.72 33.7 20.8 2.95 32.3 19.9 3.21 30.8 19.0 3.48 29.3 18.1 3.75 67 32.6 24.5 2.66 31.4 23.6 2.88 30.0 22.5 3.12 28.6 21.5 3.37 27.1 20.3 3.61 63 710 0.16 PKH18FK 710 0.16 PKH24FK 990 0.15 PKH30FK 30.4 26.9 2.60 29.2 25.8 2.81 27.9 24.6 3.04 26.6 23.5 3.27 25.1 22.2 3.50 DB 75¡F (50%RH) 62.5 30.2 23.8 2.59 29.0 22.9 2.80 27.7 21.9 3.03 26.3 20.7 3.26 24.9 19.6 3.49 DB 72¡F (50%RH) 60 28.8 23.2 2.57 27.6 22.2 2.77 26.3 21.2 2.99 24.9 20.1 3.21 23.5 18.9 3.43 DB 70¡F (50%RH) 59 28.2 22.4 2.56 27.0 21.5 2.76 25.7 20.4 2.98 24.4 19.4 3.19 22.9 18.2 3.41 71 39.8 23.0 3.00 38.4 22.1 3.25 36.8 21.2 3.54 35.1 20.2 3.83 33.4 19.3 4.13 67 37.1 26.3 2.93 35.7 25.3 3.17 34.2 24.3 3.44 32.6 23.1 3.71 30.9 21.9 3.98 63 34.7 29.3 2.87 33.3 28.1 3.10 31.9 26.9 3.35 30.3 25.6 3.61 28.7 24.2 3.86 DB 75¡F (50%RH) 62.5 34.4 25.8 2.86 33.1 24.8 3.09 31.6 23.7 3.34 30.0 22.5 3.59 28.4 21.3 3.85 DB 72¡F (50%RH) 60 32.8 25.1 2.82 31.5 24.1 3.04 30.1 23.0 3.28 28.5 21.8 3.52 26.9 20.6 3.76 DB 70¡F (50%RH) 59 32.2 24.3 2.81 30.8 23.2 3.03 29.5 22.3 3.26 27.9 21.0 3.50 26.4 19.9 3.73 990 0.14 PKH36FK Notes 1. B.F. : Bypass Factor, IWB : Intake air wet-bulb temperature TC : Total Capacity (x103 Btu/h), SHC : Sensible Heat Capacity (x103 Btu/h) TPC : Total Power Consumption (kW) 2. SHC is based on 80˚FDB of indoor intake air temperature. 3. Cooling capacity correction factors and Refrigerant piping length (one way) range. Refrigerant piping length (one way) MODEL 6 105 IWB (˚F) 25ft 40ft 55ft 70ft 85ft 100ft 115ft 130ft PKH18FK 1.0 0.992 0.983 0.978 0.966 0.959 0.950 0.945 PKH24FK 1.0 0.981 0.968 0.952 0.940 0.925 0.913 PKH30FK 1.0 0.981 0.968 0.952 0.940 0.925 0.913 PKH36FK 1.0 0.981 0.968 0.952 0.940 0.925 0.913 150ft 164ft 0.900 0.886 0.874 0.900 0.886 0.874 0.900 0.886 0.874 OC120--1.qxp 24/6/97 12:21 AM Page 7 2) HEATING CAPACITY Models Models PKH18FK PKH24FK PKH30FK PKH36FK Airflow (CFM) 710 710 990 990 Auxiliary heater 208V 230V Outdoor intake air WB temperature(˚F) 15 25 35 45 55 65 IWB (˚F) CA PC CA PC CA PC CA PC CA PC CA PC CA PC 75 12.1 1.20 14.1 1.34 16.3 1.49 18.7 1.65 21.4 1.83 23.7 1.99 5.5 1.6 70 12.4 1.16 14.4 1.29 16.7 1.44 19.1 1.59 21.8 1.76 24.1 1.91 65 12.7 1.11 14.7 1.24 17.0 1.38 19.5 1.53 22.2 1.69 24.5 1.83 6.5 1.9 75 16.3 1.82 18.9 2.03 21.9 2.27 25.2 2.51 28.8 2.77 32.8 3.01 5.5 1.6 70 16.6 1.76 19.4 1.96 22.4 2.19 25.7 2.42 29.3 2.67 33.3 2.90 65 17.0 1.69 19.8 1.89 22.9 2.10 26.2 2.32 29.9 2.56 33.9 2.78 6.5 1.9 75 21.5 2.32 25.0 2.59 28.9 2.89 33.2 3.20 38.0 3.53 43.2 3.86 6.1 1.8 70 21.9 2.24 25.5 2.50 29.6 2.78 33.9 3.08 38.6 3.40 43.7 3.72 7.5 2.2 65 22.5 2.15 26.1 2.40 30.2 2.68 34.6 2.96 39.4 3.26 44.6 3.56 75 24.7 2.71 28.7 3.04 33.3 3.39 38.2 3.75 43.7 4.14 49.6 4.49 6.1 1.8 70 25.3 2.62 29.4 2.93 34.1 3.26 39.0 3.61 44.5 3.98 50.4 4.28 7.5 2.2 65 25.9 2.53 30.1 2.82 34.8 3.14 39.9 3.47 45.4 3.83 51.3 4.14 Notes 1. IDB : Intake air dry-bulb temperature CA : Capacity (x103 Btu/h), PC : Power Consumption (kW) 2. When booster heater is "on", total capacity and total power consnmption should be added the figures described in booster heater colnmn. •Booster heater ON : When the set temperature is higher than the room temperature by more than 5.4 deg. •Booster heater OFF : When the set temperature is higher than the room temperature by less than 3.6 deg. 3. Heating capacity correction factors. Refrigerant piping length (one way) Models Less than 100ft 100~130ft 130~164ft PKH18FK 1.00 0.995 0.990 PKH24FK 1.00 0.995 0.990 PKH30FK 1.00 0.995 0.990 PKH36FK 1.00 0.995 0.990 7 OC120--1.qxp 24/6/97 12:21 AM Page 8 2. PERFORMANCE CURVE NOTES : A point on the curve shows the reference point. PKH18FK COOLING CAPACITY PKH18FK HEATING CAPACITY Total capacity (x10 3 Btu/h) 24 SHF=0.82 Indoor intake air WB temperature ( F) 18 71 67 63 Total capacity (x10 3 Btu/h) PKH18FK COOLING CAPACITY 30 12 1.5 Indoor intake air WB temperature ( F) 1.0 023 32 35 45 55 65(67) 75 85 95 105 Total power consumption (kW) 71 67 63 2.0 Indoor intake air DB temperature ( F) 18 2.5 75 70 65 2.0 1.5 Indoor intake air DB temperature ( F) 1.0 15 115 Outdoor intake air DB temperature ( F) Indoor intake air WB temperature ( F) 71 67 63 18 Total capacity (x10 3 Btu/h) Total capacity (x10 3 Btu/h) 30 24 12 45 55 65 Does not include booster heater (1.9kW) 35 Indoor intake air DB temperature ( F) 30 65 70 75 24 18 12 3.0 71 67 63 2.5 2.0 Indoor intake air WB temperature ( F) 1.5 023 32 35 45 55 65(67) 75 85 95 105 Outdoor intake air DB temperature ( F) 115 Total power consumption (kW) Total power consumption (kW) 35 PKH24FK HEATING CAPACITY SHF=0.71V 36 25 Outdoor intake air WB temperature ( F) PKH24FK COOLING CAPACITY 8 65 70 75 24 12 2.5 Total power consumption (kW) Does not include booster heater (1.9kW) 30 3.0 75 70 65 2.5 2.0 Indoor intake air DB temperature ( F) 1.5 15 25 35 45 55 Outdoor intake air WB temperature ( F) 65 OC120--1.qxp 24/6/97 12:21 AM Page 9 NOTES : A point on the curve shows the reference point. PKH30FK COOLING CAPACITY SHF=0.75 36 30 71 67 63 24 indoor intake air WB temperature(¡F) 4.0 71 67 63 3.5 3.0 2.5 2.0 indoor intake air WB temperature(¡F) 0 23 32 35 45 55 65 (67) 75 85 95 105 Outdoor intake air DB temperature(¡F) Total capacity(x10 3 Btu/h) 48 Total power consumption(kW) Total power consumption(kW) Total capacity(x10 3 Btu/h) 42 PKH30FK HEATING CAPACITY 115 42 36 30 24 18 4.0 75 70 65 3.5 3.0 2.5 2.0 indoor intake air DB temperature(¡F) 1.5 15 25 35 45 55 65 Outdoor intake air WB temperature(¡F) PKH36FK HEATING CAPACITY SHF=0.71 36 71 67 63 30 24 indoor intake air WB temperature(¡F) 4.5 71 67 63 4.0 3.5 3.0 2.5 indoor intake air WB temperature(¡F) 0 23 32 35 45 55 65 (67) 75 85 95 105 Outdoor intake air DB temperature(¡F) 115 Total capacity(x10 3 Btu/h) 54 Total power consumption(kW) Total capacity(x10 3 Btu/h) Total power consumption(kW) 65 70 75 indoor intake air DB temperature(¡F) PKH36FK COOLING CAPACITY 42 Does not include booster heater(2.2kW) Does not include booster heater(2.2kW) indoor intake air DB temperature(¡F) 48 65 70 75 32 36 30 24 75 70 65 4.5 4.0 3.5 3.0 2.5 indoor intake air DB temperature(¡F) 2.0 15 25 35 45 55 65 Outdoor intake air WB temperature(¡F) 9 OC120--1.qxp 24/6/97 12:21 AM Page 10 3. CONDENSING PRESSURE AND SUCTION PRESSURE Data is based on the condition of indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. <Cooling mode> PKH18FK 86 80 75 70 (psi.G) 100 86 80 75 70 90 Suction pressure Condensing pressure (psi.G) 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 PKH18FK 80 Indoor DB temperature( F) 70 60 50 40 Indoor DB temperature( F) 30 30 40 50 60 70 80 90 Outdoor ambient temperature 100 110 DB( F) 20 30 40 50 60 70 80 90 Outdoor ambient temperature 100 Data is based on the condition of outdoor humidity 75%. A point on the curve shows the reference point. <Heating mode> PKH18FK 10 80 F) (psi.G) 75 70 65 pe r at ur e( 70 50 40 DB te m 60 In do or Suction pressure Condensing pressure (psi.G) 350 340 330 320 310 300 290 280 270 260 250 ) 240 (F e r 230 tu 75 ra 220 70 pe m 210 65 te B 200 D r 190 oo 180 Ind 170 160 150 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature PKH18FK 30 20 10 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature 110 DB( F) OC120--1.qxp 24/6/97 12:21 AM Page 11 Data is based on the condition of indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. <Cooling mode> PKH24FK 360 (psi.G) 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 PKH24FK Suction pressure Condensing pressure 86 80 (psi.G) 100 75 70 90 Indoor DB temperature( F) 80 86 80 75 70 Indoor DB temperature( F) 70 60 50 40 30 30 40 50 60 70 80 90 Outdoor ambient temperature 100 110 DB( F) 20 30 40 50 60 70 80 90 Outdoor ambient temperature 100 110 DB( F) Data is based on the condition of outdoor humidity 75%. A point on the curve shows the reference point. <Heating mode> PKH24FK e( F) (psi.G) 80 75 70 65 pe ra tu r 70 te m 60 40 do or DB 50 In Suction pressure Condensing pressure (psi.G) 350 340 330 320 310 300 290 F) 280 e( ur t 270 ra 75 pe 260 m 70 te 250 B 65 D 240 or o 230 nd 220 I 210 200 190 180 170 160 150 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature PKH24FK 30 20 10 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature 11 OC120--1.qxp 24/6/97 12:21 AM Page 12 Data is based on the condition of indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. <Cooling mode> PKH30FK PKH30FK 86 80 (psi.G) 110 75 100 70 Suction pressure Condensing pressure (psi.G) 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 Indoor DB temperature( F) 86 80 75 70 90 Indoor DB temperature( F) 80 70 60 50 40 30 40 50 60 70 80 90 Outdoor ambient temperature 100 110 DB( F) 30 30 40 50 60 70 80 90 Outdoor ambient temperature 100 Data is based on the condition of outdoor humidity 75%. A point on the curve shows the reference point. <Heating mode> PKH30FK 12 e( F ) (psi.G) 80 at ur 70 te In do or DB 50 40 75 70 65 m pe r 60 Suction pressure Condensing pressure (psi.G) 340 330 320 310 300 290 280 F) e( 270 r tu 260 ra 75 pe 250 70 m te 240 65 B D 230 or o 220 d 210 In 200 190 180 170 160 150 140 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature PKH30FK 30 20 10 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature 110 DB( F) OC120--1.qxp 24/6/97 12:21 AM Page 13 Data is based on the condition of indoor humidity 50%. Air flow should be set at HI. A point on the curve shows the reference point. <Cooling mode> PKH36FK Suction pressure 86 80 (psi.G) 90 75 70 80 Condensing pressure (psi.G) 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 PKH36FK Indoor DB temperature( F) 70 86 80 75 70 Indoor DB temperature( F) 60 50 40 30 20 30 40 50 60 70 80 90 Outdoor ambient temperature 100 110 DB( F) 30 40 50 60 70 80 90 Outdoor ambient temperature 100 110 DB( F) Data is based on the condition of outdoor humidity 75%. A point on the curve shows the reference point. <Heating mode> PKH36FK (F ) (psi.G) 80 pe ra tu re 70 In do or D B 50 40 75 70 65 te m 60 Suction pressure Condensing pressure (psi.G) 390 380 370 360 350 340 330 320 310 F) 300 e( r 290 tu 75 ra 280 70 pe m 270 65 te 260 DB r 250 oo 240 Ind 230 220 210 200 190 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature PKH36FK 30 20 10 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature 13 OC120--1.qxp 24/6/97 12:21 AM Page 14 4. STANDARD OPERATION DATA Models PKH18FK Refrigerant circuit Electrical circuit Item Indoor side Outdoor side PKH36FK Cooling Heating Cooling Heating Cooling Heating Cooling Heating Voltage V 208/230 208/230 208/230 208/230 208/230 208/230 208/230 208/230 Frequency Hz Total input kW 1.79 1.56 2.36 2.37 3.12 3.02 3.44 3.54 Indoor fan current A 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Booster heater current A Outdoor fan current A 0.75 0.75 0.65+0.65 0.65+0.65 0.75+0.75 0.75+0.75 0.75+0.75 0.75+0.75 Comp. current A 7.4/6.9 6.1/5.9 9.3/8.7 9.5/8.7 12.6/11.8 12.2/11.4 14.3/13.2 14.7/13.7 Condensing pressure psi.G 255 202 240 243 245 236 243 263 Suction pressure psi.G 81 61 75 63 80 60 74 60 Discharge temperature ˚F 182 126 158 149 158 159 160 170 Condensing temperature ˚F 118 102 115 115 115 113 115 120 Suction temperature ˚F 66 34 46 35 49 32 45 33 Comp.shell bottom temperature ˚F 171 111 141 126 138 130 142 148 Ref. pipe length ft Intake air temperature Discharge air temperature 60 60 60 7.6/8.4 60 7.6/8.4 7.6/8.4 25 5 lbs 8 oz 8.7/9.6 25 9 lbs 15 oz 25 10 lbs 2 oz 10 lbs 9 oz DB ˚F 80 70 80 70 80 70 80 70 WB ˚F 67 60 67 60 67 60 67 60 DB ˚F 61 96 58 105 59 103 58 109 WB ˚F 59 68 56 70 58 70 56 71 Fan speed r.p.m. 1,490 1,490 1,490 1,490 Airflow (High) CFM 710 710 990 990 Intake air temperature Fan speed upper/lower Airflow Capacity 14 PKH30FK Unit Refrigerant charge SHF PKH24FK DB ˚F 95 47 95 47 95 47 95 47 WB ˚F 75 43 75 43 75 43 75 43 r.p.m. 790 CFM Btu/h 750/750 1,590 18,000 0.82 760/760 3,170 18,600 24,000 0.71 760/760 3,350 25,000 30,000 0.75 3,350 33,000 34,100 0.71 38,000 OC120--1.qxp 24/6/97 12:21 AM Page 15 5. OPERATING RANGE 1) POWER SUPPLY Min. 198V 1 Phase 60Hz 208/230V Guaranteed voltage range 208V Max. 253V 230V 2) OPERATION Air intake temperature Indoor Outdoor Function Condition DB(˚F) WB(˚F) DB(˚F) WB(˚F) Standard temperature 80 67 95 75 Maximum temperature 95 71 115 — MInimum temperature 67 57 23 — Maximum humidity 80 75 80 75 Standard temperature 70 60 47 43 Maximum temperature 80 67 75 65 MInimum temperature 70 60 17 15 Cooling Heating 6. OUTLET AIR SPEED AND COVERAGE RANGE Model Airflow (CFM) Air speed (ft/sec) Coverage range(ft) PKH18FK 710 16.1 41 PKH24FK 710 16.1 41 PKH30FK 990 17.7 50 PKH36FK 990 17.7 50 The air coverage range is the value up to the position where the air speed is 0.8ft/sec. when air is blown out horizontally from the unit at the High notch position. The coverage range should be used only as a general guideline since it varies according to the size of the room and furniture installed inside the room. 7. ADDITIONAL REFRIGERANT CHARGE (R-22(oz)) Refrigerant piping length (one way) Outdoor unit precharged (up to 100ft) 25ft 40ft 55ft 70ft 85ft 100ft 115ft 130ft PKH18FK 5 lbs 8 oz 0 0 0 0 0 0 2 4 PKH24FK 9 lbs 15 oz 0 0 0 0 0 0 2 PKH30FK 10 lbs 2 oz 0 0 0 0 0 0 PKH36FK 10 lbs 9 oz 0 0 0 0 0 0 Model 150ft 164ft 4 7 9 5 10 16 20 5 10 16 20 15 3-15/16 5/32 1-17/32 32-{15/32 hole for bolt 66-{1/4 hole for tapping screw Wall fixture 1-17/32 B 8-27/32 23/32 3-27/32 1-15/32 2-29/32 A 1-3/16 Knock out hole for piping 1-15/32 2-9/16 7-3/32 Hole for tapping screw 9-7/16 on left-hand side 12-3/8 2-3/8 55-1/8 20-9/16 Auto vane Lower side Drain hose Air intake 2-15/32 Air outlet Liquid pipe Refrigerant pipe. Drain pipe 9-1/4 Right side Terminal block for control 7-3/4 9-7/16 B Liquid pipe Gas pipe 2-5/32 4-23/32 (Gas pipe) 7-7/32 (Liquid pipe) Change vane (manual) Under panel Removable at left-hand side piping Knock out hole for under-piping Air outlet 42-15/16 Front 55-1/8 9-1/4 1-25/32 9-1/4 1-25/32 43-11/16 9-1/4 1-25/32 20-9/16 9-1/4 7-17/32 Rear piping opening 3-19/32 Range for left rear piping opening 11-1/32 24 on right-hand side 11-7/32 3/4 17-29/32 10x3-19/32=(35-13/16) 35-7/16 Drainage range 23/32 Drainage range Drain hose for 31/32 left-hand side piping 9-21/32 Unit center 1-15/32 13-3/8 Knock out hole for left piping Left side 38-31/32 2-9/16 2-29/32 C 1-3/16 A 1-17/32 5/32 3-15/16 Top Terminal block for power supply Gas pipe Terminal block for remote controller 4-1/32 4-3/8 Drain hose Bolt 19/32 C Knock out hole for right piping Refrigerant pipe. Drain pipe 4.1. Indoor Unit PKH18/24FK 13/32 1-3/16 1-5/32 16 24/6/97 12:21 AM 1-3/18 7-1/4 1-3/16 3-5/32 11-1/32 4 1/2 OC120--1.qxp Page 16 OUTLINES AND DIMENSIONS Unit : mm 3-15/16 1-17/32 for bolt 3-27/32 11-5/8 23/32 2-29/32 1-15/32 9-7/16 A 35-7/16 29-17/32 11-1/32 3-19/32 23-7/16 13x3-19/32=(7-3/16) 7-3/32 Range for left rear piping hole rear piping hole 50 Unit center Range for left 8-27/32 23/32 Wall fixture Unit out line Left hand side 2-9/16 C 1-3/16 Air outlet 1-3/16 or more Rear piping hole 12-3/8 3/4 11-7/32 9-21/32 right-hand side Drainage range on Drain hose for left-handside piping 31/32 for left piping Knock out hole Left side 5-/15/16 or less 1-5/32 for tapping screw 12- 1/4 hole 7-17/32 9-1/4 9-1/4 Front 27-5/16 Air outlet 9-1/4 1-25/32 louvers(manual) 27-5/16 Air outlet Lower side Auto vanes 7-7/32 Refrigerant pipe .Drain pipe Knock out hole for under-piping left-hand piping) Under panel (Removable at 55-1/8 1 Terminal block for powar supply Terminal block for control Drain hose 9-1/4 1-25/32 Terminal block for remote controller 53-15/16 Alr Intake 66-5/32 9-1/4 1-25/32 43-11/16 (Drain hose) 1-25/32 Top 2 Knock out hole for right piping 9-7/16 B 2-5/32(Gas pipe) 4-23/32(Liquid pipe) 19/32 or less 9-1/4 4-3/8 4-1/32 Bolt Right side C 3/4F 3-1/2~ > < 1 Sleeves are availaable on the market. 3-1/2 4 Through hole 1/2F Liquid pipe Gas pipe Sleeve > <1 1 2 PKH 30/36FK 41- 15/32 hole screw for tapping 1-17/32 1-15/32 B Knock out hole for wiring Drainage range on 2-29/32 1-3/16 A 2-9/16 10 or more 1-15/32 Air intake 10 or more 1-17/32 2 or more 84- 1/4 hole 5/32 3-15/16 5/32 13-3/8 13/32 7-1/4 1-3/16 1-3/16 1-3/16 3-5/32 2-9/32 Front 11-1/32 2-15/32 1/2 1-21/32 24/6/97 12:21 AM 2-3/8 7-3/4 OC120--1.qxp Page 17 Unit : mm(inch) 17 5-7/16 Handle for moving 3-3/4 4 For 10 units or less Rear piping hole 1/2 Rear fresh air intake Side air intake 8 40 11-5/8 1 Air intake Outlet guide installation hole 20-5/18 1-9/16 Drain hole Handle for moving 1 2 34-1/4 Drain hole 1/2x7/8 Oval hoies (standard bolt W3/8(M10) 20-5/8 11-7/8 Air outlet 1/2 1/2 36 Service panel Ground terminal Handie for moving 2-3/8 1/2 R 4 1/ 2-9/16 4-3/4 2-3/8 Front right piping holesdetail figures (refrigerant. drainage R1 and wiring) 3/ 16 Bottom piping hole Knock out hole for right piping Knock out hole for front piping (refrigerant. drainage and wiring) Refrigerant pipe (Flared) 3/8 Refrigerant pipe (Flared) 5/8 Terminal block for power line Note:Allow adequate upper clearance. (for N.E.C) Service space 1/2 Front opening Terminal block for indoor and outdoor unit connection 2-U-shaped notched holes 1/5/16 4-1/8 7-9/32 9/16 The upper side must be open. 17-3/18 14-1/4 13-7/8 Air intake 1-5/8 7-1/18 11/16 1-9/161-1/16 13 13-7/4 1-3/4 21-3/4 33-9/16 15-7/8 8 4 19-11/16 3-1/8 7-9/32 11/16 16 36 Outdoor Unit-Necessary surrouding clearance (Concentrated installation) 3/ R1 Knock out holes for power line 1-1/16 1-3/4 Standard bolt length 4.2. Outdoor Unit 2-1/16 18 24/6/97 12:21 AM 1 max. OC120--1.qxp Page 18 PUH18EK Unit : mm 5-7/16 Handle formoving 3-3/4 1/2 Rear piping hole For 10 units or less 12 40 Rear fresh air intake Side air intake 1 6 1/4 11-5/8 Air intake Outlet guide installation hole 1-9/16 Drain hole Handle for moving 1 2 23-1/16 13-9/16 34-1/4 Drain hole 2-1/2x7/8 Oval hoies (standard bolt M10)W3/8(M10) 20-5/8 11-7/8 Air outlet Air intake 19-11/16 Handie for moving Ground terminal 2-3/8 1/2 2-U-shaped notched holes 1/2 R 4 1/ 2-9/16 3/8 4-3/4 2-3/8 36 Note:Allow adequate upper clearance. (for N.E.C) Service space 1/2 Front opening Front right piping holesdetail figures Knock out hole for right piping R1 Bottom 3/ (refrigerant. 16 piping hole drainage and wiring) Knock out hole for front piping (refrigerant. drainage and wiring) Refrigerant pipe (Flared) 3/8F Refrigerant pipe (Flared) 5/8F Terminal block for power line Terminal block for indoor and outdoor unit connection Service panel 1/9/16 4-1/8 7-9/32 14-1/4 15-7/8 20-5/8 2-3/8 20-5/8 3-1/4 11/16 1-9/161-1/16 13 9/16 15-1/16 2-1/16 49-1/2 7-9/32 37-34 2-1/4 Outdoor Unit - necessary surrounding clearance 3-1/8 The upper side must be open. 11/16 16 12 4 Outdoor Unit-Necessary surrouding clearance (Concentrated installation) 3/ R1 36 Standard bolt length Knock out holes for power line 1-1/16 1-3/4 Outdoor Unit 2-1/16 24/6/97 12:21 AM 1 max. OC120--1.qxp Page 19 PUH24EK Unit : mm 19 3-3/4 Rear piping hole For 10 units or less 5-7/16 Rear fresh air intake Side air intake 7/8 1/4 13-9/16 Outlet guide installation hole 1-9/16 Drain hole Handle for moving 1 Air intake 20-5/8 2-3/8 20-5/8 12 40 38-3/16 Drain hole 2-1/2x7/8 Oval hoies (standard bolt W3/8(M10) 20-5/8 13-7/8 Air outlet 2-3/8 1/2 Bottom piping hole 2-U-shaped notched holes 1/9/16 4-1/8 Handie for moving Ground terminal 1/2 R 4 1/ 2-9/16 1/2 4-3/4 2-3/8 36 Note:Allow adequate upper clearance. (for N.E.C) Service space 1/2 Front opening Front right piping holesdetail figures Knock out hole for right piping R1 3/ (refrigerant. drainage and wiring) 16 Knock out hole for front piping (refrigerant. drainage and wiring) Refrigerant pipe (Flared) 3/8F Refrigerant pipe (Flared) (PUH30/36EK) 3/4 (PUH42EK)7/8F Terminal block for power line Terminal block for indoor and outdoor unit connection Service panel 15-7/8 Handle formoving 1/2 15-1/16 Air intake 7-9/32 49-1/2 6 1-5/16 23-1/16 13-9/16 11/16 1-9/16 1-1/16 14-31/32 9/16 2-1/16 3-1/4 16-1/4 37-3/4 23-5/8 16 7-9/32 Standard bolt length Knock out holes for power line 1-1/16 1 max. The upper side must be open. 11/16 2-1/4 Outdoor Unit - necessary surrounding clearance 3-1/8 12 6 Outdoor Unit-Necessary surrouding clearance (Concentrated installation) 3/ R1 36 Outdoor Unit 1-3/4 20 24/6/97 12:21 AM 2-1/16 OC120--1.qxp Page 20 PUH30/36EK Unit : mm Remote controller Page 21 Unit : mm (PKH series) 3-5/8 POWER — ON AUTO DRY HEAT COOL 2-3/4 CHECK SET TEMP F TIMER OFF AUTO STOP AUTO START HR LOW HIGH AIR SWEEP F HEAT AUTO SET WARMER TEMPERATURE TIMER FAN SPEED MODE 5/8 ON/OFF COOL/DRY COOLER\ HOURS 4-1/4 •CENTRALLY CONTROLLED• S TA N D B Y DEFROST 3-5/8 LOW/HIGH 4-3/4 24/6/97 12:22 AM A AIR UP/DOWN SWING/STOP DISCHARGE CHECK TEST RUN CHECK TEST RUN 5/32 4-3/4 4-3/4 Rear side wiring arrangement opening 1/2 3-9/32 5/16 Side wiring arrangement opening 3/8 2 3/16 OC120--1.qxp 1/4 Fixing holes VIEW A 1/2 21 OC120--1.qxp 5 24/6/97 12:22 AM Page 22 WIRING DIAGRAM MODELS PKH18/24/30/36FK WIRING DIAGRAM L1 POWER SUPPLY ~(1 PHASE) AC208/230V 60Hz L2 GR GRN/YLW 10VAC MF 208V TB5 B LU BRN BRN 3 2 1 30.36FK ON OFF 2 1234 TRANSMISSON WIRES DC12V 1 TB4 3 OR N 2 Y LW 1 TO OUTDOOR UNIT CONNECTING WIRES-POLAR DC12V R.B RT2 1 2 3 RT1 CN2 LCD CN21 LOSSNAY TB6 1 SW17 OFF ON H CN24 BLU GRN/YLW HEATER 1 2 I.B 8 BWN 2 CN1 1 2 3 4 5 6 88H 7 5 6 GROUND FS1 FS2 2 1 L1 L2 88H RED 5 BLU 6 B LU 2 1 POWER SUPPLY ~(1 PHASE) AC208/230V 60Hz RED 3 RED 4 18.24FK ON OFF 1234 TRANS CN30 TB2 4 5 6 7 8 9 CN20 INTAKE SW7 CN22 1234 4 3 2 1 4 CN50 2 CN24 123456 CN21 PIPE 5 4 3 2 1 J1 SW6 DRAIN J9 CN51 J5 HEATER SW2 12 ON OFF CN40 REMOCON POWER 1234 CENTRALLY CONTROL D.U.M CN27 ON OFF MODELS MV CN4T OUTDOOR 2 1 TO PEMOCON VANE LED1 12V SW3 POWER SW7 4 3 2 1 CNGV F1 ZNR RED BRN RED 1 LED2 5V POWER X4 6 6 TRANS F2 14.3VAC T CNT POWER X4 RED YLW CND FAN1 TB2 YLW WHT BLE RED BLK WHT RED C I.B GROUND 230V GRY 09876542321 26H YLW GRY GR SYMBOL C CN1<R.B> CN2<R.B> CN21<I.B> CN27<I.B> CN51<I.B> F1,2<I.B> FS1,2 H I.B J1 J5 J9 LCD<R.B> LED1<I.B> LED2<I.B> MF MV R.B NAME FAN MOTOR CAPACITOR PROGRAM TIMER CONNECTOR REMOTE SWITCH CONNECTOR LOSSNAY CONNECTOR DRAIN LIFT-UP MECHANISM CONNECTOR CENTRALLY CONTROL CONNECTOR FUSE (6A 250V) THERMAL FUSE <243°F / 18, 24FK : 10A. 30.36FK : 16A> HEATER INDOOR CONTROLLER BOARD MODE SELECTOR JUMPER RESISTORS MODE SELECTOR JUMPER RESISTORS MODE SELECTOR JUMPER RESISTORS LIQUID CRYSTAL DISPLAY LED (DC 12V POWER) LED (DC 5V POWER) FAN MOTOR VANE MOTOR REMOTE CONTROLLER BOARD SYMBOL RT1 RT2 SW2<I.B> SW3<I.B> SW6<I.B> SW7<I.B> SW17<I.B> T TB2 TB4 TB5 TB6 X4<I.B> ZNR 26H 88H NAME ROOM TEMP. THERMISTOR (32°F / 15KΩ, 77°F / 5.4KΩ DETECT) INDOOR COIL THERMISTOR (32°F / 15KΩ, 77°F / 5.4KΩ DETECT) ADDRESS SELECTOR EMERGENCY OPERATION MODEL SELECTOR MODEL SELECTOR ADDRESS SELECTOR TRANSFORMER POWER TERMINAL BLOCK INDOOR / OUTDOOR CONNECTING LINE TERMINAL BLOCK REMOTE CONTROLLER TERMINAL BLOCK TRANSMISSION LINE FAN MOTOR RELAY VARISTOR HEATER THERMAL SWITCH HEATER CONTACTOR NOTES : 1. Since the indoor fan motor (MF) is connected with 230V power, using 208V power will require a setting change of the dip switch (SW7<I.B>) on the indoor controller board as shown in fig : w 1. ON ON fig w1 Indoor fan motor (MF) for 208V. SW7 OFF OFF 1234 1234 2. Since the indoor transformer (T) is connected with 230V power if 208V power is used. Change the wiring connection showing fig : w 2. fig w2 When power supply is 240V YELLOW 230V 3. 4. 5. 6. YELLOW 208V RED Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing. Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers. Symbols used in wiring diagram above are, ¤¤ : Connector, / : Terminal block. Emergency operation If remote controller or microcomputer fails but there is no other trouble, emergency operation is possible by setting dip switch (SW3<I.B>) on the indoor controller board. [Check items] (1)Make sure that no other trouble exist the outdoor unit. Trouble with the outdoor unit prevents emergency operation. (If any trouble exists the outdoor unit error code "P8" will be displayed on the remote controller and the trouble position will be shown on the outdoor controller board LED. See electric wiring diagram of the outdoor unit for details.) (2)Make sure that there is no trouble with the indoor fan. Emergency operation will be continuous operation mode due to power ON/OFF (ON/OFF with the remote controller is not possible). [Emergency operation procedure] (1)Set the dip switch (SW3<I.B>) on the indoor controller board to 1 on and 2 off for cooling and 1 - 2 on for heating. (2)Turn on outdoor unit side circuit breaker, then indoor unit side circuit breaker. (3)During emergency operation indoor fan runs at high speed but automatic vane remains stopped. If the air outlet is blocked up with the vane, Open it with your hands. (4)Thermostat will not function. Cold air blows out for defrosting during heating thus do not operate defrosting for along time. (5)Emergency cooling should be limited to 10 hours maximum. (The indoor unit heat exchanger may freeze). (6)After every operation, switch the fan connector to FAN1, and set all dip switches (SW3<I.B>) to OFF. BG79N687H01 22 OC120--1.qxp 24/6/97 12:22 AM Page 23 MODELS PUH18EK WIRING DIAGRAM COMPRESSOR CAPACITOR FAN CAPACITOR FUSE<6A> FAN CONTROLLER CRANKCASE HEATER LED<CHECK,SERVICE> COMPRESSOR FAN MOTOR<INNER THERMOSTAT> OUTDOOR CONTROLLER BOARD SW1•2•3<0.B> T TB1,3 X11<O.B> X12<O.B> X13<O.B> SW3 2 1 4 3 2 1 X13 X12 63H1 X11 MF2 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 63H2 21R 21 S4 S A CH ZNR R/1 WHT WHT 52C GRY GRY BLK BLK RED BLK BLK 21S4 S/2 T/3 BLU BLU GRY TRF GRY SV 63H2 63H1 HC 52C B WHT WHT MF1 51CM F 208V MF 230V RED BLU 4 WHT 3 RED RED 2 C1 ORN 1 ORN BLK TB1 52C L1 RED L2 BLK R U T W BLU WHT 2 GR R 51C 1 WHT C BLU Main function of LED(when both Nos.1 and 2 of Output display (light) RED C GRN LED NO. FC CN4 CN3 ORN T X11 26C RED RED 12.3V AC X12 X14 RED RED X13 5 OFF ON CN4T 4 3 2 1 4 BRN 12.3V AC X14 CN2 WHT WHT 3 2 1 60Hz PROTECT HIGH PRESSURE SWITCH O.B SW2 1{ 208/230V CONTROL HIGH PRESSURE SWITCH RT SW1 POWER SUPPLY BYPASS VALVE RELAY VARISTOR BYPASS VALVE COIL R.V COIL OVERCURRENT RELAY CONTACTOR LED YLW ORN BRN TB3 RED X14<O.B> ZNR<O.B> 21R 21S4 51C 52C 63H1 63H2 BLU WHT CONNECTING WIRES 12V DC (polar) OUTDOOR COIL THERMSTOR <32˚F/15kΩ,77˚F/5.4kΩ> SELECTOR<CHECK,SERVICE> TRANSFORMER TERMINAL BLOCK CRANKCASE HEATER RELAY COMPRESSOR RELAY R.V RELAY BLU WHT 1 2 3 FROM INDOOR UNIT RT BRN BRN YLW YLW YLW YLW RED RED BLU C C1 F<O.B> FC<O.B> HC LD1~LD8 MC MF O.B SW3 MC S are "OFF") Check display (flash) LD1 Compressor indoor command — LD2 Heating indoor command LD3 63H1 ON RT short/open LD4 Compressor ON 63H2 funcitons LD5 Outdoor fan ON LD6 R.V.coil ON LD7 Bypass valve ON RT overheat protection LD8 Crankcase heater ON Defective input — — — How to use SW1 and 2 ● Pressing SW1 erases the past check contents loaded on the microcomputer. ● The output display (light) remains during operation but pressing SW2 displays the past check contents in flashing mode. Pressing the switch again retums to output display (light). NOTES : 1. If the operation stops to function of the protection device, the check display flashes. 2. Symbols used in wiring diagram above are. / :Terminal block, ¤¤¤ :Connector, ¤ :PC board insertion tab. CAUTION FOR SERVICING s ● The connector marked —¤— is to turn the compressor ON-OFF during servicing. The compressor stops by disconnecting the white connector as shown at the right. White connector CAUTIONS FOR POWER SUPPLY WIRING ● Since LD8 lights when normal power is turned "ON", check the power supply with the "ON" or "OFF" LD8. w Since the indoor transformer (T) is connected with 230V power, if 208V power is used, change the wiring connection as shown in the right figure. w When Power Supply is 208V RED 208V WHITE ORANGE 230V CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES ● Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units. 23 OC120--1.qxp 24/6/97 12:22 AM Page 24 MODELS PUH24/30/36EK WIRING DIAGRAM COMPRESSOR CAPACITOR FAN CAPACITOR COMPRESSOR START CAPACITOR FUSE<6A> FAN CONTROLLER CRANKCASE HEATER LED<CHECK,SERVICE> COMPRESSOR<INNER THERMOSTAT> FAN MOTOR<INNER THERMOSTAT> CONNECTING WIRES 12V DC (poler) OUTDOOR CONTROLLER BOARD RESISTOR OUTDOOR COIL THERMISTOR RT <32˚F/15kΩ, 77˚F/5.4kΩ> SW1•2•3<O.B> SELECTOR<CHECK,SERVICE> T TRANSFORMER TB1,3 TERMINAL BLOCK X11<O.B> CRANKCASE HEATER RELAY X12<O.B> COMPRESSOR RELAY RT O.B 4 3 2 1 SW2 SW3 2 1 60Hz X13 X12 63H1 X11 MF2 MF1 51CM F 21 S4 A ZNR R/1 S/2 T/3 BLU BLU WHT BLU GRY S CH WHT WHT 52C GRY GRY BLK BLK RED 21R 21S4 GRY TRF BLK BLK SV 208V 63H2 63H1 MF1 HC 52C BLU BLU 4 WHT WHT 3 RED 2 RED C1 1 ORN ORN B WHT WHT YLW 1 2 MF2 BRN 3 WHT 4 BLU 230V RED BLK TB1 1[ 208/230V FC CN4 63H2 ORN T X11 CN3 RED RED 12.3V AC X12 26C X14 RED RED X13 5 OFF ON CN4T 4 3 2 1 4 BRN 12.3V AC X14 CN2 WHT WHT 3 2 1 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 SW1 POWER SUPPLY R.V RELAY BYPASS VALVE RELAY VARISTOR COMPRESSOR START RELAY BYPASS VALVE COIL R.V COIL CONTACTOR CONTROL HIGH PRESSURE SWITCH PROTECT HIGH PRESSURE SWITCH LED YLW ORN BRN TB3 RED X13<O.B> X14<O.B> ZNR<O.B> 19 21R 21S4 52C 63H1 63H2 BLU WHT 1 2 3 FROM INDOOR UNIT O.B R BRN BRN YLW YLW YLW YLW RED RED BLU C C1,2 C5 F<O.B> FC<O.B> HC LD1~LD8 MC MF1,2 YLW C1 BRN WHT BLU 52C L1 RED L2 BLK R T GR U W GRN BLU R WHT WHT C BLU RED C MC S NOTES : Symbols used in wiring diagram above are. / :Terminal block, ¤¤¤ :Connector, ¤ :PC board insertion tab. CAUTION FOR SERVICING s White connector is to turn the compressor ON-OFF during servicing. ● The connector marked —¤— The compressor stops by disconnecting the white connector as shown at the right. CAUTION FOR POWER SUPPLY WIRING ● Since LD8 lights when normal power is turned "ON", check the power supply with the "ON" or "OFF" LD8. w Since the indoor transformer (T) is connected with 230V power, if 208V power is used, change the wiring connection as shown in the right figure. w When Power Supply is 208V RED 208V WHITE ORANGE 230V CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES ● Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units. 24 OC120--1.qxp 24/6/97 12:22 AM 6 Page 25 REFRIGERANT SYSTEM DIAGRAM Protect Control high pressure high pressure switch switch Oil separator Service Outdoor unit port 4-way valve (check) PKH18FK Refrigerant pipe (option) {5/8" Ball valve (with heat insulator) Strainer Indoor unit Flexible tube Strainer Flared connection Service port (check) Outdoor coil thermistor RT Fusible plug Bypass valve Restrictor valve Accumulator Indoor coil thermistor RT2 Restrictor valve Distributor Capillary tube ({0.126x{0.071x15.7) Muffler Compressor PKH24FK Refrigerant pipe (option) {5/8" Ball valve (with heat insulator) Strainer Flexible tube Strainer Indoor coil thermistor RT2 Flared connection Restrictor valve Distributor Outdoor unit Outdoor coil thermistor RT Service port (check) Fusible plug Bypass valve Accumulator ({0.126x{0.071x9.8) Muffler Compressor Restrictor valve Capillary tube ({0.126x{0.063 x17.3)x2 Strainer Protect high pressure switch Control high pressure switch Oil separator Outdoor unit Service port 4-way valve (check) PKH-30/36FK Indoor unit Refrigerant pipe (option) {3/4 (with heat insulator) Ball valve Strainer Flexible tube Strainer Indoor coil thermistor RT2 Protect high pressure switch Ball valve Refrigerant pipe (with service port) (option) {3/8" (with heat insulator) Capillary tube Capillary tube ({0.157x{0.079 x33.5) Strainer Ball valve Refrigerant pipe (with service port) (option) {3/8" (with heat insulator) Control high pressure switch Oil separator Service port 4-way valve (check) Indoor unit COOL HEAT Restrictor valve Distributor Capillary tube PKH30FK({0.157x{0.079x11.4) PKH36FK({0.157x{0.079x11.4) Flared connection Outdoor coil thermistor RT Service port (check) Fusible plug Bypass valve Accumulator Muffler Compressor Capillary tube Ball valve Refrigerant pipe (with service port) (option) {1/2" (with heat insulator) Strainer Restrictor valve Capillary tube PUH30EK ({0.157x{0.079 x23.6)x2 PUH36EK ({0.157x{0.079 x17.7)x2 w Capillary tubesize:(ODxIDxLength) The symbol { indicates diameter. 25 OC120--1.qxp 7 24/6/97 12:22 AM Page 26 OPERATION FLOW-CHART MAIN OPERATION START Power circuit breaker 1 NO YES YES Check SW ON twice NO Operation SW ON w 1 YES NO “OFF” timer YES NO NO Set time complete “ON” timer NO YES YES YES Set time complete w 2 NO NO Trouble YES STOP Trouble STOP PROTECTION DEVICE SELF HOLD RELEASE PROTECTION DEVICE SELF HOLD Remote controller operation display Operating mode (COOL) NO Operating mode (DRY) w 3 Remote controller trouble display Remote controller indicator lamp OFF NO Operating mode (HEAT) Indoor side w 4 Fan STOP NO w 6 Operating mode (FAN) NO Auxiliary heater OFF YES COOL operation YES DRY operation YES HEAT operation YES w 7 FAN operation Auto COOL/HEAT operation Outdoor side w 5 Compressor OFF Fan STOP Four-way valve OFF w1 In addition, the centralized and remote control can be operated. w2 The modes which indicate the sources of trouble are listed below. ● EO=Signal transmitting/receiving error ● P1=Room temperature thermistor malfunction ● P2=Indoor coil thermistor malfanction ● P4=Drain sensor malfunction ● P5=Drain over flow ● P6=Coil frost/overheat protection ● P7=System error ● P8=Outdoor unit trouble w3 The CHECK swich will show if an error has occurred in the past. w4 Fan runs on low speed for 1 minute in order to remove overheat air. w5 The 3-minute (6 minutes … heating mode) time-delay functions after compressor stops. w6 FAN or AUTO mode is selected by the indoor dipswitch setting. w7 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.) 26 OC120--1.qxp 24/6/97 12:22 AM Page 27 COOLING OPERATION COOL operation Four-way valve/OFF NO Initial COOLING w 8 YES Vane intial setting Vane 60 deg downward angle 70 deg downward angle NO YES NO Fan speed LOW YES NO Vane setting notch Downward discharge 1 hour YES Vane horizontal airflow w 9 NO Compressor thermostat ON YES NO Allowance cancel NO YES 3-minute time delay YES 6-minute time delay NO 3-minute compressor opration NO Aliowance period NO 6 minute time delay NO YES Allowance set w 10 Coil frost protection YES YES Coil frost prevention NO w 11 NO Cooling area YES NO 10-minute compressor operation NO YES 1 min continue YES Allowance cancel FAN speed LOW Coil frost protection YES NO NO Indoor coil tempreature is 50¡F or higher 16-minute compressor operation YES Indoor pipe temperature is 34¡F or lower NO Compressor ON YES YES Coil frost prevention NO FAN speed LOW 5 min elapse NO YES Outdoor unit trouble 3-minute time delay Coil frost prevention release Compressor OFF 1 w8 When operation stops or changes to cooling or dry mode, the auto vane turns to a horizontal angle. IF operation changes during auto vane SWING, the auto vane will continue to swing. w9 When operating TEST RUN, the thermostat will be continuously ON. w10After 3 minute compressor operation, if the indoor coil thermistor reads -59°F or below for 3 minutes, the compressor will stop for 6 minutes. w11Cooling area : Indoor coil temperature is more than 9 degrees above the room temperature. Heating area : Indoor coil temperature is more than 9 degrees below the room temperature. FAN area : Indoor coil temperature is within 9 degrees either way of the room temperature. 27 OC120--1.qxp 24/6/97 12:22 AM Page 28 HEATING OPERATION A Heat operation NO Intial HEATING Vane setting notch w 11 Heating area w 15 YES NO Vane intial setting Defrost 30 min. elaspe PKH-FK Type YES Defrost release NO NO 3-minute Auxiliary heater OFF NO Indoor coil thermstor is 60¡C or higher NO FAN speed Low notti NO 2 YES YES Defrosting Outdoor unit trouble NO Four-way valve ON 1 YES Hor adjust in process YES Airflow 10% up NO YES Compressor ON YES NO w 9 10-minute compressor operation YES NO YES Compressor thermostat ON 3 min.restart prevention HOT adjust 6 min. elapse B Allowance cancel 2 NO 6 min. restart prevention Indoor piping -5¡F or lower w 11 YES Heating area NO FAN STOP Outdoor unit trouble FAN SPEED very low Auxiliary heater ON NO w 11 YES Ariflow area 20 min.elaspe YES w 11 Compressor OFF NO FAN SPEED Low NO Auxiliary heater thermostat ON YES YES Indoor piping 140¡F or higher Auxiliary heater ON FAN SPEED Low 2 min. elapse YES NO FAN SPEED setting notch Hot adjust release YES Auxiliary heater OFF Compressor ON FAN SPEED Very low airflow YES NO A Hot adjust start YES B YES Indoor piping 131¡F or lower NO Indoor piping 95¡F or higher NO Allowance cancel YES w 10 Airflow area Heating area Outdoor unit trouble Overheat remote START NO NO Airflow area Cooling area NO Indoor unit 158¡F or higher YES YES Defrost operation START Allowance period Four-way valve OFF YES Overload protect NO 6-minute restart prevention Allowance set 1 Compressor OFF Auto COOL/HEAT operation NO 1 w 16 Initial mode w 17 YES NO T1 > =T0 YES COOL mode COOL mode NO HEAT mode NO NO T1 < (T0 - 2) YES After 15min. T1<(T0-2) T1>(T0 + 2) YES After 15min. T1>(T0 + 2) YES YES NO NO COOL operation HEAT operation 1 HEAT operation Cool mode set 1 w15 (!) Until Low airflow is set while hot adjustment (@) While defrosting (FAN STOP) (#) When thermostat is OFF In the case of(!), (@) and (#) above, airflow is horizontal regardless the VANE setting. w16 When AUTO operation is started, COOL or HEAT mode is selected automatically. w17 T1 : Room temperature. To : Set temperature 28 NO FAN setting notch OC120--1.qxp 24/6/97 12:22 AM Page 29 DRY OPERATION DRY operation Four-way valve / OFF NO Initial dry operation w8 YES Vane setting notch Vane intial setting YES w 12 Room tempereature is 64°F or lower NO NO During compressor ON YES 3-minute compressor operation NO NO YES NO YES 3-minute time delay w9 Compressor & thermostat ON YES Compressor & thermostat ON w9 NO YES NO Compressor ON time completes 10-minute compressor OFF NO YES YES 10-minute compressor OFF timer start Compressor OFF w 14 Fan STOP w 13 Compressor ON time set Compressor ON w 14 Fan speed LOW 1 w8 ~ 9 w12 w13 w14 Refer to page 35. When room temperature is 4°F or below, the compressor cannot operate. When room temperature rises over 64°F, the compressor starts after a 3-minute time delay. Compressor ON time is decided by room temperature. Refer to page 35. In dry operation, compressor ON makes the fan speed LOW and compressor OFF stops the fan. It is not possible to set the fan speed with the remote controller 29 OC120--1.qxp 8 24/6/97 12:22 AM Page 30 MICROPROCESSOR CONTROL 1.OUTLINE OF MICROPROCESSOR CONTROL INPUT to remote controller ● OFF-ON switching. ● COOL/DRY-AUTO-HEAT selector switching. ● Thermostat setting. ● TIMER mode selector-switching and Timer setting. ● HIGH-LOW fan speed switching. ● AUTO Vane selector (AIR DISCHARGE) switching. ● TEST RUN switching. ● CHECK mode switching. (Self diagnostic trouble shooting) ● Processes and transmits orders.orders. OUTPUT to remote controller Remote controller ● LCD indicator -CENTRALLY CONTROLLEDSTAND BY DEFROST ON F TIMER OFF AUTO STOP AUTO START ON/OFF POWER CHECK DRY COOL HEAT HEAT CHECK SET TEMP AUTO COOL/DRY SET WARMER TEMPERATURE HR LOW HIGH F AUTO RETURN CHECK TEST RUN TIMER MODE COOLER HOURS FAN SPEED LOW/HIOGH AIR UP/DOWN SWING STOP DISCHARGE CHECK TEST RUN MITSUBISHI ELECTRIC Non-polar, two-wire cable maxinmum length 500 meters 12VDC Indoor unit Remote controller board Signal Indoor controller board INPUT from indoor unit ● Room temperature thermistor (RT1) ● Indoor coil thermistor (RT2) OUTPUT to indoor unit ● Receives orders from remote controller and temperature data from indoor unit. ● Processes orders and data. ● Controls indoor and outdoor operation. ● Self diagnostic function. w System control operation. w Emergency operation. w Set by dipswitch on indoor controller board. ● Transmits the power to remote controller. Polar three-wire cable ● Compressor protectiondevice working ● Defrosting START-STOP ● Fan speed control. ● Crankcase heater control ON-OFF. ● Self diagnostic function 30 Outdoor unit 12VDC Independent Control of Outdoor Unit 1 2 3 OUTPUT to outdoor unit 1 2 3 ● Autovane’s angle setting. ● Booster heater ON-OFF Control. ● Emergency stop. ● Compressor and outdoor fan : ONOFF ● Operation mode change :COOLHEAT. OC120--1.qxp 24/6/97 12:22 AM Page 31 2. INDOOR UNIT CONTROL 2-1 COOL operation -CENTRALLY CONTROLLEDSTAND BY DEFROST ON POWER CHECK DRY COOL HEAT HEAT CHECK SET TEMP TIMER OFF AUTO STOP AUTO START F TIMER F AUTO RETURN ON/OFF COOL/DRY SET WARMER TEMPERATURE HR LOW HIGH AUTO <How to operate> 1 Press POWER ON/OFF button. 2 Press COOL / DRY button to set operation mode to Cool. NOTE : "Cool" and "DRY" are alternately displayed each time COOL / DRY button is pressed. 3 To set desired temperature, press WARMER or COOLER button. NOTE : Set temperature changes by 2˚F in the range 66~86˚F, each time WARMER or COOLER button is pressed. COOLER MODE HOURS FAN SPEED LOW/HIOGH AIR UP/DOWN SWING STOP DISCHARGE CHECK CHECK TEST RUN TEST RUN MITSUBISHI ELECTRIC <COOL operation time chart> Operation starts by POWER button ON. The room temperature displayed on Remote controller becomes equal to set temperature. The room temperature displayed on Remote controller rises above set temperature. Operation stops by POWER button OFF. ON Thermostat OFF Indoor fan LOW or HIGH LOW or HIGH ON OFF Initally 10 degrees (Changeable by remote controller setting) CLOSE Auto vane CLOSE ON Booster heater OFF ON Compressor OFF OFF Minimum 3 minutes W1 w1 Even if the room temperature displayed on remote controller rises above the set temperature during this period, the compressor will not start until this period has ended. 31 OC120--1.qxp 24/6/97 12:22 AM Page 32 (1) Compressor control 1 3-minute time delay To prevent overload, the compressor will not start within 3 minutes after stop. 2 The compressor runs when the room temperature displayed on remote controller is higher than set temperature. The compressor stops when the room temperature displayed on remote controller is equal to or lower than the set temperature. 3 The compressor stops in check mode or during protective functions. 4 Coil frost preventionTo prevent indoor coil frost, the compressor will stop when the indoor coil thermistor (RT2) reads 34°F or below after the compressor has been continuously operated for at least 16 minutes or more. When the indoor coil temperature rises to 50°F or above, the compressor will start after a 3-minute time delay. NOTE : The start temperature of coil frost prevention changes 34°F to - 27°F. 5 Coil frost protection When indoor coil temperature becomes 5°F or below, coil frost protection will proceed as follows. <Start condition> After the compressor has been continuously operated for 3 minutes or more,and the indoor coil temperature has been 5°F or below for 3 minutes,the coil frost protection will start. <Coil frost protection> Compressor stops for 6 minutes, and then restarts. If the start condition is satisfied again during the first 10 minutes of compressor operation, both the indoor and outdoor units stop, displaying a check code of “P8” on the remote controller. <Termination conditions> Coil frost protection is released when the start condition is not satisfied again during the allowance, or when the COOL mode stops or changes to another mode. (2) Indoor fan control Indoor fan speed LOW/HIGH depends on the remote controller setting. However, if an outdoor unit abnormality is detected, the indoor fan speed will be LOW, regardless of the remote controller setting. When the outdoor unit abnormality detection is released and the fan speed returns to the set speed, the quiet cycle control will work. (a) Normal control ( i ) Fan speed LOW/HIGH depends on the remote controller setting regardless of the thermostat ON/OFF. (ii) Fan speed will remain on LOW if an abnormality in outdoor unit is detected. (5 minutes) When the abnormality detection is released, the fan speed returns to the set speed. 5 minutes SET 5 minutes SET LOW LOW OFF NOTE 1 : Fan stops immediately if the unit stops or the check mode is started. 32 1 Start-up of outdoor unit abnormality detection. 2 Release of outdoor unit abnormality detection. 3 Unit stop due to outdoor unit abnormality with P8 indication. OC120--2.qxp 24/6/97 12:31 AM Page 33 (3) Auto vane control Auto vane position is set to 10degrees discharge at the start-up of COOL operation. It can then be changed by the remote controller. (a) Stop mode (fixed operation) (!) At start-up of COOL operation, the auto vane is set to 10 degrees discharge direction. (@) Discharge direction can be changed with AIR DISCHARGE UP/DOWN botton. 1 Fan speed : LOW 10° discharge 60° discharge 70° discharge 60° discharge 70° discharge 2 Fan speed : HIGH 10° discharge 30° discharge (b) SWING mode (!) The vane motor turns ON when the SWING mode is selected. The vane motor is continuously ON during SWING mode. (@) When SWING mode is changed to STOP mode, the discharge direction returns to the position of the last STOP mode. <AUTO RETURN> 1 Fan speed : LOW 10° discharge 60° discharge 70° discharge AUTO RETURN AUTO RETURN 60° discharge 70° discharge 2 Fan speed : HIGH 10° discharge 30° discharge When 60 degrees or 70 degrees discharge is selected with the LOW fan speed in COOL operation, “Auto RETURN” will appear below the temperature display. One hour later, the discharge direction returns to 10 degrees automatically and “AUTO RETURN” will disappear. If the discharge direction is set to 10 degrees during “AUTO RETURN” indication, the time counting for AUTO RETURN is cancelled. 33 OC120--2.qxp 24/6/97 12:31 AM Page 34 <Auto vane drive> (a) The vane is driven by DC12V motor. (b) Air discharge direction is selected depends on the number of pulse were sended. (c) Before start driving the auto vane, detect the standard position first, output the number of pulse to each air discharge. (d) The speed of the auto vane drive for both open and close are setted at 200 pulse/sec. (e) Method of driving the auto vane. 1 Detecting the standard position: Output 1600 pulse to the opening direction. 2 Position setting:Output the number of pulse indicated no below chart to the closing direction. The number of pulse outputed after detecting the standard position Close 1600 Horizontal 680 Downward A 578 Downward B 283 Downward C 113 (4) Detecting abnormalities in the outdoor unit After the compressor has been continuously operated for 3 minutes, if the difference between the indoor coil temperature and room temperature is out of RANGE C for 1 minute, the indoor fan speed will turn to LOW. Five minutes later, if the difference is still out of RANGE C,the outdoor unit is functioning abnormally. Thus, the compressor stops and check code “P8” appears on remote controler. RANGE A : Indoor coil temperature is more than 9 degrees above room temperature. RANGE B : Indoor coil temperature is within 5 degrees either way of room temperature. RANGE C : Indoor coil temperature is more than 9 degrees below room tempetature. Indoor coil temperature minus room temperature (degree) +9 0 -9 34 RANGE A RANGE B RANGE C OC120--2.qxp 24/6/97 12:31 AM Page 35 2-2 DRY operation -CENTRALLY CONTROLLEDSTAND BY DEFROST ON CHECK DRY COOL HEAT CHECK SET TEMP TIMER OFF AUTO STOP AUTO START F HR LOW HIGH F AUTO RETURN CHECK TEST RUN ON/OFF POWER HEAT AUTO COOL/DRY SET WARMER TEMPERATURE TIMER <How to operate> 1 Press POWER ON/OFF button. 2 Press COOL / DRY button to set operation mode to DRY. NOTE : "Cool" and "DRY" are alternately displayed each time COOL / DRY button is pressed. 3 To set desired temperature, press WARMER or COOLER button. NOTE : Set temperature changes by 2˚F in the range 66~86˚F, each time WARMER or COOLER button is pressed. MODE COOLER HOURS FAN SPEED LOW/HIOGH AIR UP/DOWN SWING STOP DISCHARGE CHECK TEST RUN MITSUBISHI ELECTRIC <DRY operation time chart> The room temperature dislayed on remote controller becomes equal to set temperature. Operation starts by POWER button ON. The room temperature dislayed on remote controller rises above set temperature. Operation stops by POWER button OFF. ON Thermostat OFF LOW speed LOW speed ON Indoor fan OFF 30 Initally 10 degrees discharge (Changeable by remote controller setting) CLOSE Auto vane 30 CLOSE ON Booster heater OFF ON Compressor OFF OFF Minimum 3 minutes w 1 w1 Even if the room temperature dispayed on remote controller above the set temperature during this period, the compressor will not start until this period has ended. (1) Compressor control 13-minute time delay To prevent overload, the compressor will not start within 3 minutes after stop. 2The compressor runs when the room temperature displayed on remote controller is higher than the set temperature. The compressor stops when the room temperature displayed on remote controller is equal to or lower than the set temperature. 3The compressor stops in check mode or during protective functions. 4The compressor will not start when the room temperature displayed on remote controller is below 64°F. The compressor starts intermittent operation when the power is turned ON with room temperature above 64°F. The compressor ON/OFF time depends on the thermostat ON/OFF and the following room temperatures.After 3-minute compressor operation, ● If the room temperature thermistor reads above 82°F with thermostat ON, the compressor will operate for 6 more minutes and then stop for 3 minutes. ● If the room temperature thermistor reads 79°F—82°F with thermostat ON, the compressor will operate for 4 more minutes and then stop for 3 minutes. ● If the room temperature thermistor reads 75°F—79°F with thermostat ON, the compressor will operate for 2 more minutes and then stop for 3 minutes. ● If the room temperature thermistor reads below 75°F with thermostat ON, the compressor will stop for 3 minutes. ● If the thermostat is OFF regardless of room temperature, the compressor will stop for 10 minutes. 5Coil frost protection in DRY operation is the same as in COOL operation. 6Coil frost prevention does not operate in DRY operation. (2) Indoor fan control The indoor fan runs on LOW speed during compressor operation. The fan speed cannot be changed with the remote controller. Also, the indoor fan does not run during compressor OFF. (3) Auto vane & drain pump controls Same as in COOL operation (4) Detecting abnormalities in the outdoor unit An abnormality in the outdoor unit can not be detected in DRY operation. 35 OC120--2.qxp 24/6/97 12:31 AM Page 36 2-3 HEAT operation -CENTRALLY CONTROLLEDSTAND BY DEFROST ON CHECK DRY COOL HEAT CHECK SET TEMP TIMER OFF AUTO STOP AUTO START F HR POWER HEAT AUTO SET WARMER TEMPERATURE TIMER MODE <How to operate> 1 Press POWER ON/OFF button. 2 Press HEAT button to set operation mode to HEAT. 3 To set desired temperature, press WARMER or COOLER button. <Display in HEAT operate> "STAND BY" is displayed from HEAT operation start until warm air begins to blow. "DEFROST" is displayed during defrosting. ON/OFF COOL/DRY COOLER HOURS FAN SPEED LOW/HIOGH LOW HIGH AIR UP/DOWN SWING STOP DISCHARGE F AUTO RETURN CHECK TEST RUN CHECK TEST RUN MITSUBISHI ELECTRIC <HEAT operation time chart> Operation starts by POWER button ON. The room temperature displayed on remote controller falls below set tem- The room temperature displayed on remote controller becomes equal to set temperature. Operation stops by POWER button OFF. ON Thermostat OFF Extra LOW w 1 ON Indoor fan Extra LOW w 1 LOW or HIGH LOW or HIGH OFF 10¡ Close Depends on remote controller setting Depends on remote controller setting 10¡ Close ON Booster heater w 1 Changeable by indoor dipswitch J1 - 7 and J1 - 8. OFF ON Auto vane LOW OFF Hot adjustment Hot adjustment OFF during thermostat OFF hot adjustment defrosting ON Compressor OFF Minimum 3 minutes w 2 ON Power ON lamp OFF ON STAND BY lamp From POWER ON until warm begins to blow OFF w2 Even if the room temperature displayed on remote controller rise above the set temperature during this period, the compressor will not start until this period has ended. 36 OC120--2.qxp 24/6/97 12:31 AM Page 37 (1) Compressor control 13-minute time delay To prevent overload, the compressor will not start within 6, minutes after stop. 2The compressor runs when the the room temperature displayed on remote controller is lower than the set temperature. The compressor stops when the the room temperature displayed on remote controller is equal to or higher than the set temperature. 3The compressor stops in check mode or during protective functions. 4Overheat protection <Start condition> When the indoor coil thermistor reads 158°F or above, the overheat protection will start. <Overheat protection> The compressor stops for 6 minutes, and then restarts. If the start condition is satisfied again within 10 minutes of compressor operation, both the indoor and outdoor units stop, displaying a check code of “P6” on the remote controller. <Termination conditions> Overheat protection is terminated when the start condition is not satisfied again during the allowance (10-minute compressor operation), when operation mode changes to other mode, or when thermostat turns OFF. (2) Indoor fan control (a) Nomal control (!)The indoor fan runs on EXTRA-LOW speed during the thermostat OFF. EXTRA-LOW speed can be changed to LOW or HIGH speed by setting the (J1-7, J1-8) If the indoor coil temperature becomes more than 9 degrees below the room temperature during the thermostat OFF, the indoor fan will stop. After, when the indoor coil temperature becomes within 9 degrees of room temperature, the indoor fan will run on EXTRA-LOW speed. (@)Hot adjustment Hot adjustment is a warm-up for HEAT operation <Start conditions> The hot adjustment works under any of the follwing conditions. ● HEAT operation starts. ● Defrosting ends. ● Thermostat turns ON.[Hot adjustment] Initially, the indoor fan runs on EXTRA-LOW speed. When 5 minutes have passed or the indoor coil temperature exceeds 95°F, the fan speed changes to LOW. Two minutes later, the hot adjustment ends. Then, the fan speed depends on the remote controller setting. (#)The indoor fan stops when the indoor coil temperature is within 9 degrees either way of room temperature. ($)To eliminate the remaining heat, the indoor fan runs for the first 1 minute after the booster heater is turned OFF. 37 OC120--2.qxp 24/6/97 12:31 AM Page 38 (3) Auto vane control (a) STOP mode (fixed operation) (!) The discharge direction at the start-up of HEAT operation is the same as that of the previous operation. (@) The discharge direction can be charged by the remote controller setting. 10° discharge 30° discharge 60° discharge 70° discharge (only for New models) (SWING) (SW5-3:OFF/ON) In the following cases, discharge direction becomes 10° regardless of the remote controller setting. 1 During the hot adjustment with fan speed at EXTRA-LOW 2 During defrosting with indoor fan OFF 3 During the thermostat OFF (b) SWING mode (!) The vane motor turns ON when the SWING mode is selected. The vane motor is continuously ON during SWING mode. (@) In the following cases, the discharge direction is 10° regardless of the remote controller setting. 1 During the hot adjustment with fan speed at EXTRA-LOW 2 During defrosting with indoor fan OFF 3 During thermostat OFF (4) Booster heater control When the room temperature is 5 degrees below the set temperature, the booster heater will turn ON. When the room temperature is equal to the set temperature, booster heater will turn OFF. During the hot adjustment, the booster heater will not work. <Overheat prevention> When the indoor coil thermistor rises to 140°F or above, the booster heater cannot work. When the indoor coil thermistor falls to 131°F or below, the booster heater can work. (5) Detecting abnormalities in the outdoor unit When the outdoor unit is determined to be abnormal by the following causes, the compressor will stop and the check code “ P8 ” will appear on the remote controller display. w1 (See the next page.) 1 During compressor ON after hot adjustment 1 If the difference between the indoor coil temperature and room temperature is in the RANGE B, the indoor fan will stop. 2 Within 20 minutes after entering RANGE B (except for the first 10 seconds), a) If the temperature difference enters RANGE A, the hot adjustment stasrts, b) If the temperature difference is still in RANGE B, the outdoor unit is deemed abnormal. c) If the temperature difference enters RANGE C, defrosting starts. Within 30 minutes after entering RANGE C, ●If the temperature difference does not return to RANGE B,the outdoor unit is deemed abnormal. ●If the temperature difference returns to RANGE B, the next 20 minutes is an allowance period. If the difference enter RANGE A during the allowance, defrosting ends and the hot adjustment starts. If the difference does not enter RANGE A during the allowance, the outdoor unit is deemed abnormal. 2 During compressor ON in hot adjustment After 30 minutes of defrosting in hot adjustment, if the temperature difference is still in RANGE C, the outdoor unit is determined to be abnormal. 3 During compressor OFF After 20 minutes of thermostat OFF, if the indoor coil thermistor reads -13°F or below, the outdoor unit is determined to be abnormal. 38 OC120--2.qxp 24/6/97 12:31 AM Page 39 (6) Indoor coil thermistor abnormality detection An abnormality can be detected during compressor ON, except for the following. ●For the first 30 minutes after the temperature difference between the indoor coil temperature and room temperature enters the RANGE C. ●When the temperature difference enters the RANGE C until it moves to the RANGE B. (7) Defrosting operation After the outdoor unit starts the defrosting operation, when the temperature difference between the indoor coil temperature and room temperature gets out of RANGE A and into RANGE B, the indoor unit starts the defrosting mode. After the outdoor unit stops the defrosting operation, when the temperature difference returns to the RANGE A, the indoor unit stops the defrosting mode. While the indoor unit is in the defrosting mode, the indoor fan and the booster heater stop. w1 RANGE A : Indoor coil temperature is more than 9 degrees above room temperataure. RANGE B : Indoor coil temperature is within 9 degrees either way of room temperature. RANGE C : Indoor coil temperature is more than 9 below room temperature Indoor coil temperature minus room temperature (degree) +9 0 -9 RANGE A RANGE B RANGE C 39 OC120--2.qxp 24/6/97 12:32 AM Page 40 2-4 AUTO operation (Automatic COOL/HEAT change over operation) -CENTRALLY CONTROLLEDSTAND BY DEFROST ON TIMER OFF AUTO STOP AUTO START ON/OFF POWER CHECK DRY COOL HEAT HEAT CHECK SET TEMP AUTO COOL/DRY SET WARMER TEMPERATURE F TIMER HR <How to operate> 1 Press POWER ON/OFF button. 2 Press AUTO button to set operation mode to AUTO. 3 To set desired temperature, press WARMER or COOLER button. NOTE : Set temperature changes by 2˚F in the range 66~86˚F, each time WARMER or COOLER button is pressed. Once the desired temperature is set, operation mode is switched automatically between COOL and HEAT according to room temperature. MODE COOLER HOURS FAN SPEED LOW/HIOGH LOW HIGH AIR UP/DOWN SWING STOP DISCHARGE F AUTO RETURN CHECK CHECK TEST RUN TEST RUN MITSUBISHI ELECTRIC (1) Initial mode 1 When AUTO operation starts after unit OFF. ● If the room temperature displayed on remote controller is higher than the set temperature, operation starts in COOL mode. ● If the room temperature displayed on remote controller is equal to or lower than the set temperature, operation starts HEAT mode. 2 When AUTO operation starts after COOL or HEAT operation, the previous mode continues. (2)Mode change 1 HEAT mode changes to cool mode when 15 minutes have passed since the room temperature became 2 degrees above the set temperature. 2 COOL mode changes to HEAT mode when 15 minutes have passed since the room temperature became 2 degrees below the set temperature. To:Set temperature (19 (degree) 28 ) When the room temperature displayed remote controller becomes2 degrees above the set temperature, the operation mode can not be changed for 15 minutes. Mode change (HEAT COOL) To + 4 To + 2 To To - 2 To - 4 15 minutes Start 15 minutes Mininum 3 minutes COOL mode HEAT mode Compressor Mode change (COOL HEAT) HEAT mode ON OFF Mininum 3 minutes (3)Temperature range AUTO operation is available under the outside air temperatures as follows. -15.8 32 50 68 10¡F -17¡F Cooling range Heating range 40 86 104 115¡F (Outside air temperature) OC120--2.qxp 24/6/97 12:32 AM Page 41 2-5 Auto vane control <How to operate> To change the air flow direction, press AIR DISCHARGE UP/DOWN button. -CENTRALLY CONTROLLEDSTAND BY DEFROST ON CHECK DRY COOL HEAT CHECK SET TEMP TIMER OFF AUTO STOP AUTO START F HR LOW HIGH F AUTO RETURN POWER HEAT AUTO SET WARMER TEMPERATURE TIMER ON/OFF COOL/DRY COOLER MODE HOURS FAN SPEED LOW/HIOGH AIR UP/DOWN SWING STOP DISCHARGE CHECK CHECK TEST RUN 1 2 3 4 10° 30° 60° 70° TEST RUN MITSUBISHI ELECTRIC <Remote controller display> 1 discharge 2 downward discharge 3 downward discharge Available in COOL operation with fan speed on HIGH or in HEAT operation. Unavailable in DRY operation. If fan speed changes from LOW to HIGH during 30° downward discharge in COOL mode, the direction automatically changes to 10°. 4 downward discharge Changes by pressing the AIR DISCHARGE UP/DOWN button. (1) COOL/DRY operation At the start-up of COOL or DRY operation, the discharge direction in automatically set to 10°. After, it can be changed to another direction with AIR DISCHARGE UP/DOWN button on the remote controller. <Auto return> When 60° or 70° discharge is set with fan speed on LOW, “AUTO RETURN” appears below the room temperature display. One hour later the direction changes to 10° degrees, automatically and “AUTO RETURN” disappears. (2) HEAT operation At the start-up of HEAT operation, discharge direction depends on the setting of the last operation. After, it can be changed to another direction with AIR DISCHARGE UP/DOWN button. The discharge direction shifts to 10° regardless of the remote controller settings under any of the following conditions. ● Thermostat OFF ● Defrosting ● Indoor fan speed EXTRA-LOW in hot adjustment 41 OC120--2.qxp 24/6/97 12:32 AM Page 42 2-6 TIMER operation <Timer function> AUTO STOP ·········The air conditioner stops after the set time lapses. -CENTRALLY CONTROLLEDSTAND BY DEFROST ON CHECK DRY COOL TIMER HR AUTO START ········The air conditioner starts after the set time lapses. COOL/DRY SET WARMER TEMPERATURE F TIMER OFF AUTO STOP AUTO START AUTO HEAT HEAT CHECK SET TEMP ON/OFF POWER AUTO OFF ············Timer is not active. COOLER MODE HOURS <How to operate> FAN SPEED LOW/HIOGH LOW HIGH 1. Press POWER ON/OFF button. AIR UP/DOWN SWING STOP DISCHARGE F AUTO RETURN CHECK CHECK TEST RUN 2. Press TIMER HOURS button to select AUTO STOP or AUTO TEST RUN START. MITSUBISHI ELECTRIC 3. Press TIMER HOURS button to set desired time. Time setting is in 1 hour units for up to 24 hours. Each time HOURS button is pressed, set time increases by 1 hour. When HOURS button is pressed and held, the set time increases by 1 hour every 0.5 seconds. 4. To cancel the timer operation, press POWER ON / OFF button. <Timer setting example> AUTO STOP 8 HR This setting will stop the air conditioner in 8 hours. With the lapes of time, time display changes in 1 hour units, showing remaining time. 2-7 Test run <Before test run> ● After installing, wiring, and piping the indoor and outdoor units, check for refrigerant leakage, looseness in power supply or control wiring, and mistaken polarity. ● Use a 500-volt megger to check the resistance between the power supply teminal block and ground to make sure that it is at least 1.0MΩ. Attention: Do not use the air conditioner if resistance is less than 1.0MΩ. -CENTRALLY CONTROLLEDSTAND BY DEFROST ON CHECK DRY COOL CHECK SET TEMP TIMER OFF AUTO STOP AUTO START F AUTO RETURN CHECK TEST RUN AUTO SET WARMER TEMPERATURE F HR LOW HIGH POWER HEAT HEAT TIMER MODE ON/OFF COOL/DRY COOLER HOURS FAN SPEED LOW/HIOGH AIR UP/DOWN SWING STOP DISCHARGE CHECK TEST RUN MITSUBISHI ELECTRIC TEST RUN button Displayed during test run Indoor coil temperaure code Display 42 <How to operate> 1. Turn ON main breaker. 2. Press TEST RUN button twice. “TEST RUN” is displayed on remote controller. 3. Press COOL / DRY button to check that cool air is being discharged. 4. Press AIR DISCHARGE UP / DOWN button to check auto vane operation. 5. Check outdoor fan operation. 6. Check compressor operation referring to the indoor coil temperature code displayed on the remote controller. (See next page.) 7. The test run works for 2 hours and stops automatically. To cancel the test run, press POWER ON / OFF button or TIMER MODE button. 8. After checking, turn OFF the main breaker. OC120--2.qxp 24/6/97 12:32 AM Page 43 (1) Indoor coil temperature code During the test run, the indoor coil temperature code from 1 to 15 is displayed on the remote controller instead of room temperature. The code should fall with the lapse of time in normal COOL operation, and should rise in normal HEAT operation. Code Indoor coil temperature 1 2 3 4 5 6 7 8 ~40~34¡F ~50¡F ~59¡F ~68¡F ~77¡F ~86¡F ~95¡F 104¡F 9 10 11 12 13 14 Code Indoor coil temperature ~113¡F ~122¡F ~131¡F ~140¡F ~158¡F 15 Thermistor abnormality (2) Trouble during test run ● If the unit malfunctions during the test run, refer to section 10 in this manual entitled “TROUBLESHOOTING.” ● When the optional program timer is connected to the conditioner, refer to its operating instructions. 2-8 Emergency operation When the remote controller or microprocessor malfunctions but all other parts are normal, emergency operation is started by setting the dipswitch SW3 on the indoor controller board. <Before emergency operation> 1. Make sure the compressor and the indoor fan are operating normally. 2. Locate the defect with the self-diagnostic function. When the self-diagnostic function indicates “protective function is working”, release the protective function before starting the emergency operation. CAUTION: When the self-diagnostic function indicates a check code of “P5” (drain pump malfunction), DO NOT start the emergency operation because the drain may overflow. <How to operate> 1. For emergency cooling, set the dipswitch SW3-1 to ON and SW3-2 to OFF. For emergency heating, set the dipswitch SW3-1,2 to ON. Emergency cooling 1 1 ON 2 Emergency heating 1 2 1.2 ON Nomal operation 1 2 1-2 OFF Microcessor board 2. Turn ON the outdoor unit breaker and then turn ON the indoor unit breaker. Emergency operation will now start. 3. During emergency operation, the indoor fan operates on high speed, but the swing louvers and the auto vanes do not operate. 4. To stop emergency operation, turn OFF the indoor unit breaker. NOTE: The remote controller POWER ON/OFF button can not start/stop emergency operations. CAUTION: Do not use emergency cooling for more than 10 hours, as the indoor coil may freeze. 43 OC120--2.qxp 24/6/97 4:07 AM Page 44 2-9 Interlock with ventilation system (LOSSNAY) Mr. SLIM/LOSSNAY interlock operation is available by using the optional parts listed below. (1) System organization Relay box (PZ-12RB-E) Relay box Mr. SLIM LOSSNAY LOSSNAY Power supply Mr. SLIM Power supply Remote controller LOSSNAY control switch (PZ-05SLB2-E) Remote display adapter (PAC-SA88HA-E) Remote controller LOSSNAY control switch (PZ-05SLB2-E) (2) Required parts are: ● Relay box (PZ-12RB-E) ••• Contact capacity 10A ● Remote display adapter (PAC-SA88HA-E)…An optional part for Mr. SLIM ● LOSSNAY control switch (PZ-05SLB-2-E)…For LOSSNAY individual operation (3) Operation 1LOSSNAY turns ON/OFF according to Mr. SLIM ON/OFF 2While Mr. SLIM is OFF, LOSSNAY individual operation is available by using the LOSSNAY control switch. When Mr. SLIM turns OFF with the LOSSNAY control switch at ON, LOSSNAY will continue to operate. (4) Wiring. 1When the LOSSNAY control switch is used: 2When the LOSSNAY control switch is not used: Mr. SLIM Indoor controller board Remote controller Power supply for Mr. SLIM 220 240V AC Relay box (PZ-12RB-E) Connector CN51 GRN YLW ORN RED BRN Terminal block A Insulation is needed 10m LOSSNAY Terminal block B L N HIGH N Relay box (PZ-12RB-E) A B Connecting wire 0.13mm 2 or over Connecting wire solid wire, 1.6 or 2.0 (field supplied) RED N WHT RED WHT N HIGH 7 6 2 5 1 Circuit breaker (field supplied) L Power supply N 50Hz 220 240V RED 8 ORN L HIGH ORN LOW YLW 4 WHT Mr.SLIM CN51 12V DC Circuit breaker N RED DAMPER 3 L N Power supply 220 240V AC ORN DAMPER WHT LOSSNAY Terminal block N L ORN LOW LOW PL HIGH N HIGH N DAMPER DAMPER DAMPER LOSSNAY control switch (PZ-05SLB 2-E) 44 Junction box (field supplied) RED WHT RED ORN WHT NOTE: For further information, refer to the LOSSNAY technical & service manual. OC120--2.qxp 24/6/97 12:32 AM Page 45 2-10 Dip switch and jumper connector functions Each figure shows the initial factory setting. 1 On remote controller board (1) SW17(Address selector) 1 2 3 4 5 6 7 8 90 ON OFF SW17-1 ~ 6) For address setting SW17-7) When two remote controllers are used, this switch sets the controller function. OFF: The remote controller is set as a main controller. ON: The remote controller is set as a sub controller. SW17-8) Switch for system back-up OFF: Without back-up ON: With back-up SW17-9) Switch for temperature unit OFF: °C ( Celsius) ON: °F (Fahrenheit) SW17-0) Switch for louvers OFF: Unit with louvers ON: Unit without louvers 3. On indoor controller boaed (1) J1 (Mode selector) 1 J1-1) J1-4) J1-5) J1-6) 4 5 6 7 8 9 10 Switch that changes between FAN mode and AUTO mode. Provided: Fan mode for models without heat pump. Not provided: AUTO mode for models without heat pump. Switch for drain pump Provided: The drain pump works in only COOL operation Not provided: The drain pump works in both COOL and HEAT operation Switch to change the temperature to start coil frost prevention Provided : 34°F (For all current models) Not provided: -27°F (For previous special models) Switch for set temperature adjustment in HEAT mode During HEAT operation, warm air collects near the ceiling. When the indoor unit is installed near the ceiling, the temperature read by room temperature thermistor differs from the actual living-space temperature by about 7 degrees. Therfore, the room temperature read by room temperature thermistor must be lowered by 4 degrees. Provided : 7-degree adjustment Not provided : No adjustment 45 OC120--2.qxp 24/6/97 12:32 AM J1-7) J1-8) J1-9) J1-10) Page 46 Switch for fan speed during thermostat OFF in HEAT operation Provided : EXTRA LOW Not provided : LOW Switch for fan speed during thermostat OFF in HEAT operation. Provided : EXTRA LOW or LOW (set with J1-7) Not provided : Low or HIGH (set with remote controller) Switch for detecting abnormalities in the outdoor unit abnormality detection. Provided : When an abnormality occurs, it is detected. Not provided : Even if an abnormality occurs, it can not be detected. Switch for auto restart function Previded : This function does not work Not provided : This function works. (2) SW2 (Address selector) Used in setting the unit-address for group control. 123456 For further information, refer to page 57. ON OFF (3) SW3 (Emergency operation switch) Nomal operation For emergency cooling For emergency heating ON OFF ON OFF 12 12 ON OFF 12 (4) J5 (Model selector) 2 4 J5-2) J5-4) Prouided :For models with heat pump. Not Previded :For models without heat pump. This jumper is unavailable for PKH-FK (5) SW7 1234 ON OFF SW7-1) OFF:PKH18/24FK ON :PKH30/36FK SW7-2) POWER SUPPLY 208V ( OFF: ON : 230V ) 2.11 INDOOR FAN CONTROL Indoor fan relay output. (a) During fan ON The indoor fan relay turns ON. One second later, the phase control will start. (b) During fan OFF The phase control turns OFF. One second later, the indoor fan relay will turn OFF. 46 OC120--2.qxp 24/6/97 12:32 AM Page 47 3. OUTDOOR UNIT CONTROL 3-1 Outdoor fan control The rotational frequency of outdoor fan is phase-controlled according to the outdoor coil temperature. This control allows the cooling operation even with the low outside-air temperature and the heating operation even with the high outside-air temperature. 3-2 Outdoor unit control The outdoor unit turns ON/OFF the cooling/heating operation according to orders given from the indoor unit. 3-3 Protective functions 1 If an reversed-phase, an open phase, or an indoor controller abnormality is detected, the outdoor unit will stop operation and the check mode will start. (For the check mode details, see page 48.) 2 If a protective function works, the compressor will stop running. Three minutes later, the compressor will restart. If the protective function works again, the compressor will stop running and the check mode will start. 3 The protective function is memorized. 4 The memory is cleared when the POWER ON/OFF button on the remote controller is turned OFF. However, the check mode display continues until the outdoor unit receives the “operation ON” command from the indoor unit. 3-4 COOL/HEAT operation time chart Operation starts by P O W E R b u t t o n ON. The room temperature displayed on remote controller becomes equal to set temperature. The room temperature displayed on remote controller becomes different from set temperature. Operation stops by POWER butto n OFF. ON Thermostat OFF ON Compressor OFF 60 minutes Crankcase heater (with jumper wire J3) Crankcase heater (without jumper wire J3) 4-way valve (cool) 4-way valve (HEAT) 60 minutes ON OFF ON 60 minutes 60 minutes 60 minutes 60 minutes 60 minutes Repeats 60-minute ON/OFF OFF ON OFF 10 minutes 10 minutes 1 3 minutes 3 minutes ON OFF ON Bypass valve OFF ON Outdoor fan OFF w1 If compressor restarts within 10 minuteas, 4-way valve remains ON. 47 OC120--2.qxp 24/6/97 12:32 AM Page 48 3-5 Defrosting in HEAT mode <Defrosting time chart> Defrosting starts. Indoor unit Defrosting stops. ON Indoor fan OFF Auto vane 35degrees(SW5-3 OFF)or 20degrees(SW5-3:ON)discharge direction ON OFF Set direction (Remote controller still displays set direction.) Set direction Outdoor unit ON 4-way valve OFF Bypass valve ON OFF Outdoor fan ON OFF Compressor ON OFF (1) Start conditions A. When all of the following conditions are satisfied, defrosting will start. However, when the bypass valve turns OFF, defrosting starts 10 minutes later. (a) More than seven minutes have passed since the compressor start-up. (b) The outdoor coil thermistor reads 23˚F or below. (c) The outdoor fan motor output step is 100% (d) Total time of compressor operation exceeds 30 minutes, and the outdoor coil temperature has fallen by 14 degrees or more in comparison with that of 10 minutes after the compressor start-up. NOTE: The outdoor coil temperature 10 minutes after the compressor start-up is memorized until the defrosting operation has ended. B. When all of the following conditions are satisfied, defrosting will start. (a) ~ (c) The same as above (a) ~ (c) in item A (d) Total time of compressor operation exceeds “defrost interval”. Further information on the defrost interval is described in (3). C. After the total time of compressor operation exceeds the defrost interval, the thermostat repeats ON/OFF three times. Two minutes after the fourth “ON” of the thermostat, if the outdoor coil thermistor reads 23˚F or below and the fan output output is 100%, defrosting will start. NOTE: The count of the thermostat ON/OFF is cleared by the compressor-OFF command or defrosting start-up. (2) During defrosting ● Even if the thermostat turns OFF, defrosting continues. ● The 4-way valve, bypass valve, outdoor fan, and indoor fan are OFF. 48 OC120--2.qxp 24/6/97 12:32 AM Page 49 (3) Defrost interval The defrost interval time is determined as follows. ● Initial defrost interval is 50 minutes. ● The defrost interval after defrosting depends on the preceding defrosting time as shown below. Defrosting operation time 3 minutes or below Next defrost interval 120 minutes 3 to 7 minutes 80 minutes 7 to 10 minutes 60 minutes 10 to 15 minutes 40 minutes 15 minutes (Maximum) 30 minutes NOTE1:If the unit stops during defrosting , the next defrost interval will be 50 minutes. NOTE2:If a protection function works for the first time during defrosting, the compressor will stop. After a 3-minute time delay, defrosting will restart. In this case, a 3-minute time delay is included with the defrosting time. If the protection function works for the second time, the unit stops operation and displays the check code. The next defrost interval will be 30 mimutes. NOTE3:When the defrosting has ended, the total time of the compressor operation is cleard. (4) Termination conditions Defrosting finishes when any of the following conditions are satisfied. 1Defrosting has continued for 15 munites. 2Outdoor coil thermistor reads 72˚F or above for the first 75 seconds after defrosting start-up. 3Outdoor coil thermistor reads 46˚F or above after the 75-second defrosting. 4Power ON/OFF button is turned OFF during defrosting. 3-6 Actuators (1) Bypass valve control <Cooling mode> 1When the unit stops due to the coil frost prevention, the bypass valve turns ON. When one hour has passed since the compressor stopped, the bypass valve returns to OFF. 2When the compressor operates with the bypass valve at ON for more than 30 minutes, the bypass valve turns OFF. 3When the compressor stops with the bypass valve at OFF, the bypass valve turns ON and remains ON for three minutes. <Heating mode> 1When the unit starts for the first time after the circuit breaker has been turned ON, or when it starts after the compressor OFF of 30 minutes or more, if the outdoor coil thermistor reads 54˚F or more, the bypass valve turns ON. 2When the high pressure switch (63H1) works, the bypass valve turns ON. 3When the bypass has been ON for 30 minutes: ● If the high pressure switch has already returned, the bypass valve turns to OFF. ● If not, the fan output step keeps 70 for three minutes. Meanwhile, if the high pressure switch returns, the bypass valve turns OFF. Otherwise the normal fan control starts. 4When the operation mode changes or stops, the bypass valve turns ON and remains ON for three minutes. <Defrosting operation> 1The bypass valve is OFF. (2) Crankcase heater control 1With jumper wire J3 The crankcase heater is ON from when the power is turned ON until the compressor starts, and then turns ON one hour after the compressor stops. 2Without jumper wire J3 The crankcase heater is ON from when the power is turned ON until the compressor starts, and repeats 1-hour ON and 1-hour OFF. 49 OC120--2.qxp 24/6/97 12:32 AM Page 50 3-7 Service functions (1) Compulsory defrositng 1When all of the following conditions are satisfied, pressing SW2 starts the compulsory defrosting. ● During HEAT mode ● The compressor is ON. ● The outdoor coil temperature is being displayed by LED. (Outdoor controller board dip switch SW3-1 : OFF, SW3-2 : ON) ● The outdoor coil thermistor reads 46°F or below. 2The operation state and the termination conditions of the compulsory defrosting are the same as those of the normal defrosting. As an exception, the defrost interval after the defrosting completion is 50 minutes. (2) Fixed fan-output While the compressor is operating (exept during defrosting) and the fan output step is indicated by LED, pressing SW2 fixes the fan output. The fixed fan-output can be released when any of the following conditions are satisfied. 1SW2 is pressed again. 2SW3 setting is changed. 3The compressor stops. 4Defrosting operation starts. (3) Function of switches on the outdoor controller board SW1: Clears the check code memory (push-button switch) SW2: Switches the output state indication and the check code display (push-button switch) SW3-1,2: Switches the output state indication items (dip swtich) For further information, refer to page 50. (4) 100% fan output Fan output is fixed to 100% by shorting the connector CN22. However, the fan stops during compressor OFF or defrosting. Open-circuit of CN22 restarts the normal fan control. (5) Time shorterning Short circuit of the connector CN21 shortens the time as follows 1Fan control period: 30 seconds → 3 seconds 2Three-minutes time delay function : 3 minites → 3 seconds 3Max. time of defrosting : 15 minites → 15 seconds 4Defrost interval : 30 ~ 120 minutes → 3 ~ 12 seconds 5Compressor ON/OFF time for bypass valve ON/OFF : 30 minutes → 3 seconds 6Compressor ON time to start other functions : x minutes → x seconds 7Crankcase heater operation : 1 hour → 6 seconds 50 OC120--2.qxp 24/6/97 12:32 AM 9 Page 51 TROUBLESHOOTING 1.TROUBLE IN TEST RUN Symptom Cause Check points The display “CENTRALLY CONTROLLED” on remote controller does not disappear. 1) Wrong address setting of remote controller/indoor controller board. 2) Timer adapter is connected to the remote controller. 3) Signal transmission error between indoor unit and remote controller. 1) Check the address setting of remote controller and indoor controller. 2) Make sure the timer adapter is used correctly. 3) 1 Turn another remote controller’s DIP SW177 ON to make it sub controller. 2 Connect the sub controller to the unit, and turn circuit breaker ON. ● If the display “centrally controlled” disappears, replace the original remote controller. ● If the display remains the same, replace the indoor controller board. When remote controller POWER button is turned ON, the check code “EO”appears. 1) Signal transmission error between indoor unit and remote controller 1) 1 Connect a sub remote controller. 2 Turn circuit breaker ON. If the display “centrally controlled” remains, replace the indoor controller board. 3 If the display disappears, turn the remote controller POWER button ON and check as follows. Remote controller Sub remote controller 1 Operating Display EO Display 2 Operating Display Operating Display 3 NO Display EO Display 4 NO Display Operating Display Malfunction Malfunction of indoor Unit Malfunction of Remote controller Malfunction of indoor Unit and Remote Controller Malfunction of Remote controller When remote controller POWER button is turned ON, operating display appears, but disappears soon. 1) Short circuit of indoor/outdoor connecting wire 2) Short circuit of transmission wire. 3) Short circuit of drain sensor heater circuit. 4) Wrong operation of remote controller due to noise wave emitted by other appliances. 1), 2) Check the wire 3) Measure the resistance of the drain sensor connector CN50 1 - 3. Normal resistance should be 82Ω. 4) Turn the circuit breaker OFF, and then turn ON. If the remote controller remains abnormal, despite the above measures, replace the indoor controller board. Despite turning POWER button ON, the remote controller display does not appear. 1) Damaged remote controller. 2) Short circuit of transmission wire. 3) Bad contact of indoor CN40. 4) CN40 is attached to a sub unit. 5) Damaged transformer. 6) Bad contact of CN4T. 7) Blown fuse. 8) Circuit breaker OFF. 1) Measure the voltage between terminals of remote controller. If no voltage, remove the wire from the terminals and measure the voltage between wires. If the voltage is between 6VDC and 12V, replace the remote controller. 2) ~ 8) Check each point. If it is not defective, replace the indoor controller board. 51 OC120--2.qxp 24/6/97 12:32 AM Page 52 2. SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER 2-1 When malfunction occurs during operation When a malfunction occurs, the indoor and outdoor units stop and the malfunction is displayed on the LCD of the remote controller. (A) ON the set temperature display part, “CHECK” appears, and the unit address and the check code are displayed alternately at one-second intervals. (Check mode) Example Alternately displayed CHECK 0 °F CHECK mode CHECK p1 °F -CENTRALLY CONTROLLEDSTAND BY DEFROST ON CHECK DRY COOL HEAT CHECK SET TEMP TIMER OFF AUTO STOP AUTO START F HR LOW HIGH (2) When one remote controller controls several units in the group control, the LCD shows the unit address and check code of the first malfunctioning unit. (3) To cancel the check mode, press the POWER ON/OFF button. In remote ON/OFF control, press the remote ON/OFF switch. In centralized control, turn OFF the POWER ON/OFF button of centralized controller. F AUTO RETURN CHECK TEST RUN POWER HEAT AUTO SET WARMER TEMPERATURE TIMER MODE ON/OFF COOL/DRY COOLER HOURS FAN SPEED LOW/HIOGH AIR UP/DOWN SWING STOP DISCHARGE CHECK TEST RUN MITSUBISHI ELECTRIC CHECK button NOTE: The latest check code is memorized, even if the check mode is cancelled by the way mentioned above. It takes 60 seconds maximum to display the memorized check code. 2-2 How to use the self diagnostic function for service A. For normal control with one unit and one remote controller (1) Pressing the CHECK button on the remote controller twice starts the self diagnostic function. (2) During the self diagnostic function, “CHECK” appears at two positions on the remote controller display. Then, at least 10 seconds later, the unit address and the check code is alternately displayed at one-second intervals. (3) Check and repair the unit according to the check code. (Refer to the next page.) 2-3 For group control using one remote controller (1) Press the WARMER or COOLER button on the remote controller to advance or go back to the unit address. Each time WARMER button is pressed, the unit address advances by one. Each time COOLER button is pressed, the unit address goes back by one. The check code and the unit address, appear alternately. (2) The check code “U8” means no malfunction has occurred since installation. The check code “EO” means the following conditions: ● The unit address displayed on the remote controller does not apply to any unit. ● power is not supplied to the unit. ● Signal transmitting / receiving circuit is abnormal. (3) Check and repair the unit according to the check code. (Refer to the next page.) 52 OC120--2.qxp 24/6/97 12:32 AM Page 53 Check Diagnosis of malfunction Cause Check points code Signal transmitting/receiving During individual unit control 1) Check the transmission wire. EO error 1) Bad contact of transmission 2) Check with another remote controller. If “EO” is (Indoor controller does not wire still indicated, replace the indoor controller respond to remote controller 2) Signal transmitting/receiving cirboard. signal.) cuit is abnormal. If other check code appears. replace the original remote controller. P1 Abnormality of room temper- 1) Bad contact of thermistor ature thermistor (RT1) 2) Damaged thermistor P2 Abnormality of indoor coil thermistor (RT2) P3 Signal transmission error (Remote controller does not respond to indoor controller signal.) 1) Bad contact of transmission 1) Check the transmission wire. wire 2) Check with another remote controller. 2) Signal transmitting/receiving cirIf “P3” is still indicated, replace the indoor cuit is abnormal. board. 3) Wrong operation due to noise If other check code appears, replace the origiwave emitted by other applinal remote controller. ances 3) Short-circuit between 1 and 2 of CN40 and attach CN40 to the following units. ● Second unit in twin control ● Second and third units in triple control ● Sub units in group control P4 Abnormality of drain sensor 1) Bad contact of transmission wire 2) Damaged thermistor 1) Check the connector. 2) Measure the resistance of the thermistor 4 - 5. As for the normal resistance, refer to the case of P1. If the resistance is normal, replace the indoor controller board. P5 Malfunction of drain pump 1) Malfunction of drain pump 2) Damaged drain sensor 1) Check the drain pump. 2) ● Check the drain sensor. ● Check the drain sensor heater. Normal resistance should be 82Ω. If the resistance is normal, replace the indoor controller board. P6 Coil frost protection is working. 1) Short cycle of air cycle 2) Dirty air filter 3) Damaged fan 4) Abnormal refrigerant 1) 2) 3) 4) P7 System error P8 Abnormality in outdoor unit 1) Check the thermistor. 2) Measure the resistance of the thermistor. Normal resistance should be as follows. 32˚F····15kΩ 86˚F ···4.3kΩ 50˚F······9.6kΩ 104˚F ···3.0kΩ 68˚F······6.3kΩ If the resistance is normal, replace the indoor controller board. Clear obstructions from the air cycle. Clean the air filter Check the fan. Check the refrigerant temperature and pressure. 1) Wrong address-setting 1) 2) Signal transmitting/receiving cir- 2) cuit of remote controller is abnormal. 3) Wrong SW6-setting 3) Check the address-setting. Check with another remote controller. If check code other than “P7” appears, replace the original remote controller. Check SW6 setting. 1) Wrong wiring of indoor/outdoor connecting wire 2) Reversed phase 3) Protection device is working 4) Damaged outdoor coil thermistor Check the indoor/outdoor connecting wire. Change the connection of electric wiring. Check the protection device. Measure the resistance of the outdoor coil thermistor. If the resistance is normal, replace the outdoor controller board. 1) 2) 3) 4) 53 OC120--2.qxp 24/6/97 12:32 AM Page 54 3.SERVICE DATA INDICATION BY SWITCHES ON OUTDOOR CONTROLLER BOARD Setting dip switchs SW2 and SW3 on the outdoor controller board enables LED to show the output state and check code. Output state is shown by LED lighting, and check code by blinking. SW1 : Turning SW1 ON clears the check code. If SW1 is turned ON while the check code is blinking , the indication changes to output state indication. NOTE : SW1 is usually available independant of SW3 setting. As an exception, when the check code shows a reversed phase or an open phase during the power-on-reset state, SW1 is not available. SW2 : SW2 is turned ON by pressing, and OFF by releasing. When SW3-1 and SW3-2 are OFF, pressing SW2 changes indication between output state and check code alternately. When SW2 is turned On with SW3-1 OFF and SW3-2 ON, the compulsory defrosting starts. SW3 : Output state indication items depend on the combination of SW3-1 ON/OFF and SW3-2 ON/OFF. Changed alternately by pressing SW2. Check code Output state Outdoor coil temperature (bit) Fan output step (bit) Total time of compressor operation(Hr) SW3-1 OFF OFF OFF ON ON SW3-2 OFF OFF ON OFF ON 1 1 256 2 2 512 54 Lighting LED Blinking LD1 Reversed phase LD2 Open phase LD3 Outdoor coil thermistor is abnomal. During 63H1 function 4 4 1024 LD4 63H2 function Compressor ON 8 8 2048 LD5 51C function Outdoor fan ON 16 16 4096 LD6 26C function 4-way valve ON 32 32 8192 LD7 Overheat protection Bypass valve ON 64 64 16384 LD8 Input circuit on controller board is abnormal Crankcase heater ON 128 128 32768 Compressor ON command from indoor controller Heating operation command from indoor controller OC120--2.qxp 24/6/97 12:32 AM Page 55 ˚F 212 3-1 Outdoor coil temperature To obtain data on the outdoor coil temperature, add the number of bits of lighting LEDs, and see the graph below to find the temperature. (Short 238 bits) 176 140 Temperature 104 68 32 -4 -40 (Open 8 bits) 0 50 100 150 200 255 Number of bits 3-2 Fan output step To obtain data on the fan output step, add the number of bits of lighting LEDs, and see the graph below to find the fan rotational frequency. 1PUH18/24EK 2PUH30/36EK Type Fan rotational frequency (rpm) Fan rotational frequency (rpm) Type 800 600 400 200 0 50 100 150 200 Fan output step (bit) 250 800 600 400 200 0 50 100 150 200 250 Fan output step (bit) 3-3 Total time of compressor operation Compressor operation time is indicated in 256 hour units. To obtain the compressor operation time, add the hours of lighting LEDs. During the compressor operation time indication, SW2 is not available. 3-4 Check code indication ● When a protection function works for the first time during operation, the operation stops and restarts after the 3-minutes time delay mode. When the protection function works again, the operation stops. (Check mode) When both SW3-1 and SW3-2 are OFF, the check code is indicated. ● If the outdoor controller board receives the compressor ON command from the indoor controller board during check mode the indication changes to output state indication. ● By pressing SW2 duirng normal operation. operation will continue. ● The latest check code is indicated. 55 OC120--2.qxp 24/6/97 12:32 AM Page 56 4. TROUBLESHOOTING ACCORDING TO CHECK CODE Blinking Diagnosis of malfunction LED LD1 Reversed phase Cause Check point Phases A1, A2, and A3 are con- Check the power supply connection. nected improperly. LD2 Open phase LD3 Outdoor coil thermistor is ● Outdoor coil thermistor is abnormal. (Open circuit or short broken. circuit) ● Thermistor was connected incorrectly. LD4 High pressure switch (63H2) function ● 62H2 was badly connected. ● 63H2 was working. ● Check 63H2 and the outdoor fan motor. ● Check if refrigerant supply is low. ● Check if air cycle is short-cycled. LD5 Thermal relay (51C) function ● 51C was connected incorrectly. ● 51C was working. ● Check 51C, the compressor, and power supply. LD6 Thermal switch (26C) function. ● 26C was connected incorrectly. ● 26C is working. ● Check 26C. ● Check if refrigerant supply is low. ● Check if the capillary tube is clogged. LD7 Over heat protection ● The thermistor is broken. ● Coil temperature is over 153˚F. ● Measure the resistance of the thermistor. ● Check the outdoor fan motor. ● Check if air cycle is short-cycled. LD8 Input circuit of outdoor controller board is abnormal. ● Pulse input is abnormal. ● Replace the outdoor controller board. ● Phase A2 is open. ● Check the power supply. ● Contact of protector, such as ● Check each protector. thermal switch, opened when power was turned on. ● Measure the resistance of the thermistor. ● Check the thermistor. If normal, replace the outdoor controller board. 5.WHEN OUTDOOR UNIT DOES NOT WORK 1) 2) 3) 4) 56 Cause Indoor/outdoor connecting wires are poorly connected. (Refer to next page.) Power supply is poorly connected. Connector or transformer is broken. Fuse (6A) in the outdoor controller board is blown. Check points 1) Check the connecting wires. 2) Check the power supply. 3) Check connectors and transformers. 4) Check the fuse. OC120--2.qxp 24/6/97 12:32 AM Page 57 6. WRONG WIRING ON SITE 6-1 Between remote controller and indoor unit If the wire is disconnected between the remote controller and the indoor unit, nothing is displayed on the remote controller when the POWER button is pressed. The beep sound will also not be heard. 6-2 Phenomenon due to wrong wiring between indoor and outdoor units Wrong wiring Mode Thermostat OFF Indoor Outdoor 1 1 2 2 3 3 Indoor ON OFF HEAT Outdoor 1 1 2 2 3 3 Indoor 1 2 2 3 3 Indoor 1 1 2 2 3 3 Indoor 1 1 2 2 3 3 OFF Outdoor unit stops. ON Operation stops. 9 minutes later, check code “P8” appears on remote controller display. OFF Operation stops. ON Operation stops. 27 minutes later, check code “P8” appears on remote controller display. OFF Outdoor unit stops. ON Operation stops. 9 minutes later, check code “P8” appears on remote controller display. OFF Operation stops. ON Operation stops. 27 minutes later, check code “P8” appears on remote controller display. OFF Outdoor unit stops. ON Operation stops. 9 minutes later, check code “P8” appears on remote controller display. OFF Operation stops. ON Operation stops, 27 minutes later, check code “P8” appears on remote controller display. OFF Outdoor unit stops. ON Operation stops. 9 minutes later, check code “P8” appears on remote controller display. OFF Operation stops. ON Operation stops. 27 minutes later, check code “P8” appears on remote controller display. OFF Operation stops. ON Operation stops. 9 minutes later, check code “P8” appears on remote controller display. OFF Operation stops. 4-way valve turns OFF. ON 27 minutes later, check code “P8” appears on remote controller display. COOL COOL COOL HEAT Outdoor Disconnection between 1 and 1 or 2 and 2. COOL HEAT COOL HEAT Disconnection between 3 and 3. COOL 4-Way valve turns ON. 9 minutes later, check code “P8” appears on remote controller display. Cooling operation. Several minutes later, check code “P8” appears on remote controller display. Normal operation. HEAT Outdoor Operation stops. ON HEAT Outdoor 1 COOL Phenomenon – Normal operation. OFF Operation stops. 4-way valve turns ON. ON Operation stops. 27 minutes later, check code “P8” appears on remote controller display. HEAT 57 OC120--2.qxp 24/6/97 12:32 AM Page 58 7. OTHER TROUBLES AND CAUSES Vanes do not work. t Unit stops after 5 to 20 seconds operation Air discharge display is OFF and air discharge UP/DOWN button does not operate. t t Indoor controller board deems the auto vanes are not attached to the unit. Horizontal anlgle can not be detected. Beep sound is heard, but display is turned OFF. Beep sound is not heard, and display remains OFF. t t t t t Protection function is working. In this case, remote controller is normal. Power ON/OFF button is not available. Vane motor does not work. Limit swtich does not work. Connector is poorly connected. Vane motor is poorly assembled. Indoor controller board is damaged. Vane motor is damaged. Vane motor relay is damaged. Limit switch is damaged. The size of the cam is wrong. Refer to check code on remote controller display. See page 52. Indoor controller is damaged. Dip switch setting is wrong. Indoor controller is damaged. Vane motor is damaged. Vane motor limit switch is poorly connected. Auto vane is wired after power is turned to ON. t Indoor/outdoor connecting wire is connected incorrectly. Indoor/outdoor connecting wire shorts. Compressor protector is damaged. Deicer is broken. t Remote controller is damaged. Transmission wire is poorly connected “CENTRALLY CONTROLLED” is displayed. t t t Vane motor limit switch is damaged. Vane motor is damaged. Poorly connected Disconnected Transmission wire is damaged. Connector is poorly connected. Indoor terminal block is poorly connected. Remote controller terminal block is poorly connected. 8.MR. SLIM/LOSSNAY INTERLOCK OPERATION <Symptoms that are not malfunctions> If any of the following symptoms occur, they are not malfunctions. Symptom Cause LOSSNAY control switch does not work. LOSSNAY control switch can not work during interlock operation. LOSSNAY control switch is effective only while Mr. SLIM is not operating. LOSSNAY air speed can not be controlled in interlock operation. LOSSNAY fan speed is fixed to HIGH during interlock operation. LOSSNAY fan speed LOW/HIGH can be switched only during LOSSNAY individual operation with the LOSSNAY contorl switch. For LOSSNAY, troubleshooting refer to the LOSSNAY technical & service manual. 58 OC120--2.qxp 24/6/97 12:32 AM 10 Page 59 SYSTEM CONTROL 1. VARIETY OF SYSTEM CONTROL FUNCTIONS 1 Group control with a single remote controller (See page 59.) Unit Unit Unit Remote controller 2 Control using two remote controllers (See page 60.) Unit Unit Unit Many units, installed at different locations, can be started and controlled with a single remote controller. The remote controller can be mounted in a different location using a non-polar two-wire cable, which can be extended up to 500m. A maximum of 50 units can be controlled with a single remote controller. All units operate in the same mode. Two remote controllers can be used to control either one unit or a group of units. Units can then be controlled from a distance or at close range. Units operate according to the latest command from either remote controller. Remote controller 3 Individual control by grouping remote controllers (See page 61.) Unit Unit Unit By grouping the remote controllers in one place, several units installed at different locations can be controlled individually, and operation conditions of all units are visible without a special control board. The control method is the same as that of the single unit with a single remote controller. Remote controller 4 Multiple remote control display (See page 62.) ❋ Multiple display adapter (PAC-SA88HA-E) is needed. Unit Remote controll display board Unit Unit Several units can be controlled with a remote control display board. Operation conditions of all the units are visible with the remote control display board. Individual control by each remote controller is also possible. Remote controller 59 OC120--2.qxp 24/6/97 12:33 AM Page 60 2. GROUP CONTROL WITH A SINGLE REMOTE CONTROLLER A maximum of 50 units can be started in order according to the dip switch settings 2-1 How to wire (1) Connect the remote controller to the double terminal block on the indoor controller board of the master unit (No.0 unit). (See Figure 1.) (2) Connect the double terminal block of the master unit to the double terminal block of No.1 unit. (3) Connect the double terminal block of No.1 unit to the double terminal block of No.2 unit. (4) Continue the process until all the units are connected with two-wire cables. (See Figure 2.) (5) Remove the connector CN40 from the indoor controller board of each unit except the master unit. (See Figure 3.) (6) Set the unit-address of each unit with SW2 on the indoor controller board following the instructions below. 2-2 How to set unit-address The unit-address also serves as a successive-start timer which starts each unit at intervals of 1 second. If two or more units have the same unit-address in a group control, operation stops due to system error. Be sure to set SW2 correctly following the instructions below. (1) Each lever of SW2 shows the number as follows. SW2-1 : 1 SW2-4 : 8 SW2-2 : 2 SW2-5 : 16 SW2-3 : 4 SW2-6 : 32 (2) Total number of levers turned to ON shows the address of the unit. For example, to set No.3 unit, turn ON SW2-1 and SW2-2. (3) In this way, set from the. master unit to the last unit. Do not forget to set the master (No. 0) unit. Figure 1 To remote controller To next unit To next unit A NE 1 2 3 A NE 1 2 3 Master unit electrical box Next unit electrical box The last unit dose not have this wire. Figure 2 Master unit No.1 unit No.2 unit Last unit 2-wire cable Figure 3 Indoor controller board CN40 Should be removed from all units other than unit No.0:(Master Unit) Setting examples Master (No. 0) unit No. 1 unit No. 2 unit No. 4 unit No. 8 unit No. 16 unit No. 32 unit ALL OFF 1 ON 2 ON 3 ON 4 ON 5 ON 6 ON SW2 1 Unit address & start delay in seconds. 2 3 4 5 6 1 0 2 3 4 5 6 1 1 2 3 4 5 6 1 2 2 3 4 5 6 1 4 2 3 4 5 6 1 8 2 3 4 5 6 1 16 2 3 4 5 32 2-3 Unit control The remote controller can control all units ON/OFF, temperature,air flow, and swing louver. However, the thermostat in each unit turns ON or OFF individually to adjust to the room temperature. 60 6 OC120--2.qxp 24/6/97 12:33 AM Page 61 3. CONTROL USING TWO REMOTE CONTROLLERS : OPTIONAL REMOTE CONTROLLER (PAC-SK47RC) Two remote controllers can be used to control either one unit or a group of units. Units operate according to the latest command from either of the two remote controllers. Before operation, be sure to set one remote controller as the "main controller" and the other as the "sub controller", using dipswitch SW17-7 of the remote controller. Individual operation Multiple operation Remote controller Remote controller Remote controller Remote controller 3-1 How to set SW17-7 (See Figure 5.) (1) For the main remote controller, turn SW17-7 OFF. (2) For the sub remote controller, turn SW17-7 ON. 3-2 Remote controller LCD indication (1) The same indications always appear on both the main and sub remote controllers, except during the timer operations. (2) Timer operations can be set with either of the two remote controllers. However, LCD indication appears only on the remote controller used for timer settings. (3) If both remote controllers are set for timer operation with different time-settings, the timer operation with the shorter remaining-time is effective. (4) Self-diagnostic function is available with either of the two remote controllers. If one of the remote controllers is used for the self-diagnostic function, the other remote controller displays the check mode. If the self-diagnostic function is reset by either of the two remote controllers, both remote controllers are reset. Main remote controller Sub remote controller Turn SW17-7 ON 4. REMOTE ON-OFF AND INDIVIDUAL REMOTE CONTROLS This method is auailable to control one unit or any number of units. The following operations are available by connecting a relay, a timer adapter (PAC-SA89TA-E), and a remote ON/OFF switch to the system. Timer adapter is an optional part. Other parts are available on the market. (A) To start all units in order by remote ON-OFF switch (B) To stop all units simultaneously by remote ON-OFF switch (C) To switch between the remote ON-OFF control and the individual remote control 4-1 System Figure 6 shows the case of three units.The same is the case with any number of units. Figure 6 Timer adapter PAC-SA89TA-E power supply of control circuit Remote ON/OFF switch Relay box 2-wire remote Timer adapter cables controller cable Remote controller 61 OC120--2.qxp 24/6/97 12:33 AM Page 62 NOTE1 : Install the relay box where it can be serviced easily. NOTE2 : For control circuit wiring, use a wire of No. 14 AWG or a control cable according to the power supply of control circuit. NOTE3 : When the power supply of the control circuit is 220/240V AC, ● Do not connect the control circuit wire to the remote controller cable directly. ● Do not place the control circuit wire and the remote controller cable into the same conduit. 4-2 Basic wiring Caution : Before starting all units simultaneously by the remote ON-OFF switch, be sure to connect a sequence-start timer into the remote ON-OFF circuit. Otherwise, a rush of starting current may damage the power supply. Remote ON/OFF switch Power supply No.1 unit relay box No.2 unit relay box SW1 Next unit SW2 Glow switch or pilot lamp can be combined to easily identify the on-off mode of SW1 and SW2. To No.1 unit T T X2 X2 T X2 To No.2 unit T X2 Remote controller Timer adapter cables 4-3 Switch function of remote ON-OFF switch SW1 (Switches between remote ON and OFF.) ON (Start) OFF (Stop) SW2 (Switches between remote ON-OFF and individual control) ON OFF (Remote ON-OFF control) (Individual control) All units start together. w1 Each unit can be controlled by each Individual control is not available. remote controller. All units stop together. w2 Remote ON-OFF switch is not available. Individual control is not available. w1 After all units start together, if SW2 is turned OFF, each unit can be individually stopped by each remote controller. w2 After all units stop together, if SW2 is turned OFF, each unit can be individually started by each remote controller. 5. INDIVIDUAL CONTROL BY GROUPING THE REMOTE CONTROLLERS ● Grouping the remote controllers allows individual control and centralized monitoring of units installed in different places without a special control board. ● Remote control cables are extendable up to 500m. When the cable length exceeds 12m, use the double-insulated two-core cable such as Belden 9407. Also, the cable thickness must be No. 22 AWG or above. ● When gathering the power ON/OFF switches of air conditioners near the remote controllers, you should also install the power ON/OFF switch near each unit to prevent electric trouble during servicing. 62 Remote controller cable (2-core) Remote controller OC120--2.qxp 24/6/97 12:33 AM Page 63 6. MULTIPLE REMOTE CONTROL DISPLAY You can control serveral units with a multiple remote control display,by wiring an optional multipe display adapter (PAC-SA88HA-E) with relays and lamps on the market. 6-1 How to wire (1) Connect the multipe display adapter to the connector CN51 on the indoor controller board. (2) Wire three of the five wires from the multiple display adapter as shown in the figure below. <Wiring > GREEN 5 CN51 1 connector(5P) X1 RL X1 YELLOW X2 ORANGE RED Electrical insulation is needed. BROWN Optional multiple display adapter Indoor controller board X2 GL Power supply Wiring at the actual place The maximumdistance between indoor board and relay is 10m. <System> 3wires 3wires 3wires Power supply [Notes on Signs] X1:Relay (for check lamp) X2:Relay (for operation lamp) RL:Check Lamp GL:Operation Lamp [Field supplied parts] Relays:12V DC with rated coil power consumption below 0.9W. Lamps:Matching to power supply voltage. 2wires No.1 unit No.2 unit Remote controller cable Muitiple remote control ON-OFF display (Field supply) Remote controller No.3 unit Relay box (Field supply) Remote controller Remote controller (Operation check) <Wiring diagram> Power supply RL-1 X1-1 GL-1 X2-1 RL-2 X1-2 GL-2 X2-2 RL-3 X1-3 GL-3 X2-3 X1 X2 X1 1 Multiple remote controller adapter 5 No.1 unit 1 No.2 unit X2 X1 X2 Multiple Remote Control Display 5 1 5 No.3 unit connect to the connector CN51 Relay box 63 OC120--2.qxp 11 24/6/97 12:33 AM Page 64 DISASSEMBLY INSTRUCTIONS Indoor unit PKH24FK OPERATING PROCEDURE 1. Removing the lower side of the indoor unit from the installation plate (1) Remove the 2 screws. Hang the indoor unit hangers to the catches on the installation plate. PHOTOS&ILLUSTRATION Figure 1 Hanger of indoor unit Catch of installation plate Metal fixture Screws 2. Removing the right side panel (1) Remove the 2 screws of the right side panel:one on the bottom and the other on the upper right-hand side. (2) Disconnect the connector from the adapter case. (3) Sliding the right side panel to the right, pull it out toward you. Figure 2 Connector Indoor controller board Right side panel Terminal cover Connector Electrical parts box cover 3. Removing the indoor controller board (1) Remove the right side panel. (2) Remove the screw of the electrical parts box cover, and remove the cover. (3) Disconnect the connectors on the indoor controller board. (4) To unhook the catches on the right-hand side of the indoor controller board, pull the left-hand side toward you and lift up the cover to the right. Then the indoor controller board can be removed. 4. Removing the ielectrical parts box (1) Remove the right side panel. (2) Remove the screw of the electrical parts box cover, and remove the cover. (3) Remove the room temperature thermistor and the indoor coil thermistor. (4) Disconnect the vane motor connector on the indoor controller board. (5) Remove the 2 screws of the electrical parts box. (6) Disconnect the connector of the heater lead wire connector. (7) Disconnect the connector of the fan motor lead wire. (8) Remove the electrical parts box. 64 Photo 1 Indoor controller board Electrical parts box cover Catches Room temperature thermister Photo 2 Indoor coil thermister Screws Electrical parts box OC120--3.qxp 24/6/97 12:56 AM Page 65 OPERATING PROCEDURE (8) Remove the screws of the indoor controller board case, and pull out the indoor controller board case. Then the transformer and the capacitor and relay can be serviced. PHOTOS&ILLUSTRATION Relay Photo 3 Transformer Capacitor Indoor controller board case 5. Removing the vane motor (1) Remove the right side panel. (2) Remove the screw of the electrical parts box cover, and remove the cover. (3) Remove the 2 screws of the vane motor, and remove the motor from the shaft. (4) Disconnect the vane motor connector on the indoor controller board. Photo 4 Electrical parts box Screws Vane motor Indoor controller board 6 Removing the intake grills (1) Remove the right side panel. (2) To remove the left side panel, remove the screw on the bottom and the screw on the upper left-hand side. (See Figure 3.) 1. Press up this side of the left side panel to unhook the catch on the panel from the catch on the unit. 2. Slide the left side panel to the left to remove the panel. Note: Fix the unit to the metal fixture securely (3) Remove the air filters. (4) Hold and press the center cover to remove. (5) Remove the screws of the grills. (6) Pull the lower side of the grill toward you and slide the upper to the right to remove the grills. Figure 3 Catch on the left side panel Catch on the unit Photo 5 Left side panel Slide to the right Grills Screws for grills 7. Removing the drain pan (1) Remove the left and right side panels. (2) Remove the grills. (3) Remove the electrical parts box cover. (4) Loosen the drain hose band to remove. (5) Remove the 3 screws of the drain pan, and slide the drain pan toward you to remove. Photo 6 Drain pan Drain hose band Screws Drain hose 65 OC120--3.qxp 24/6/97 12:56 AM Page 66 OPERATING PROCEDURE 8. Removing the lineflow fan and the fan motor (1) Remove the left and right side panels. (2) Remove the grills. (3) Remove the electrical parts box. (4) Remove the drain pan. (5) Loosen the screw that fixes the lineflow fan to the fan motor. (See Photo 7. ) (6) Remove the 4 screws of the motor fixture, and remove the fan motor and the motor fixture at a time (See Photo 8.) (7) Remove the screws of the left and right motor supports, and remove the motor supports and the fan motor. (See Photo 9.) (8) Remove the 2 screws on the left and right sides of the heat exchanger, and pull the bearing support toward you. (See Photo 11.) (9) Remove the screw of the center support, and remove the support. (See Photo 10. ) (10) Pull the left-hand side of the heat exchanger toward you, and remove the lineflow fan. PHOTOS Photo 7 Screw Lineflow fan Fan motor Photo 8 Screw Fan motor Motor fixture Photo 11 Photo 9 Heat exchanger Bearing support Fan motor Screw Screw Motor support Motor support Photo 10 Lineflow fan 9. Removing the electrical heater. (1) Remove the left and right side panels. (2) Remove the grills. (3) Remove the drain pan. (4) Loosen the screw that fixes the lineflow fan to the fan motor.(See Photo 7.) (5) Remove the screw of the center support, and remove the support. (See Photo 10.) (6) Remove the 2 screws on the left and right sides of the heat exchanger, and pull the bearing support toward you. (See Photo 11.) (7) Pull the left-hard side of the heat exchanger toward you, and remove the lineflow fan. (8) Remove the heater fixing screws (1 screw each on right and left sides), and slide the heater element to the left to remove the heater. 66 Lineflow fan Center support Screw Photo 12 Heat exchanger Heater element Heater fixing screws OC120--3.qxp 24/6/97 12:57 AM Page 67 13-4 Outdoor unit (PUH18EK) OPERATING PROCEDURE 1. Electrical parts (1) Remove top panel (3 screws in front, 2 screws in rear) (2) Remove cover panel (1 screw). The panel is anchored by clicks to the side panel. Remove by pulling towards you. (3) Remove cover panel (1 screw). The panel is anchored by clicks on the right and left sides. After removing the screw, pull the panel down and remove it by pulling towards you. PHOTOS Photo 1 Screws Top panel Service panel Front panel Photo 2 Outdoor controller board Transformer Capacitor Contactor Screws 2. Fan motor (1) Remove front panel (3 screws). Open the panel to a 45 degree angle and lift to remove. The panel is clasped at three points on the left side. (2) Remove propeller (1 set nut). (3) Remove fan motor (3 screws). Remove lead connectors. Cover panel Terminal block Photo 3 Separator support plate Motor support Propeller High-pressure switch Lead connectors Valve bed Propeller nut Crankcase heater 67 OC120--3.qxp 24/6/97 12:57 AM Page 68 OPERATING PROCEDURE 3. Heat Exchanger, Compressor (1) Remove the rear panel (2 screws in front, 1 screw on the side, 3 screws in the rear). Remove the valve bed, and open the rear panel to the rear to remove. NOTE : All panels are clasped, and must be removed by shifting up and down. (2) Remove right side panel (4 screws). (3) Remove rear guard (3 screws). (4) Remove separator support plate (4 screws). (5) Remove motor support (2 screws). (6) Remove valve bed (5 screws). The valve bed is clasped on the right and left sides. Lift to remove. (7) Remove the electrical parts box. Remove the respective connectors from highpressure switch, crank case heater, shell thermo, and fan motor lead. (8) Remove separator (2 screws). (9) Remove heat exchanger (2 screws). Disconnect the welded section of pipe. (10) Remove compressor (3 set nuts). Remove the weldment of the compressor suction pipe and discharge pipe. PHOTOS Photo 4 Screws Photo 5 Accumulator Photo 6 Charge plug Ball valve Compressor 68 Screws Heat exchanger OC120--3.qxp 24/6/97 12:57 AM Page 69 13-5 Outdoor unit (PUH24EK) OPERATING PROCEDURE 1. Electrical parts (1) Remove top panel (3 screws in front, 2 screws in rear) (2) Remove cover panel (1 screw). The panel is anchored by clicks to the side panel. Remove by pulling towards you. (3) Remove cover panel (1 screw). The panel is clasped on the right and left sides. After removing the screw, pull the panel down and remove it by pulling towards you. PHOTOS Screws Photo 1 Panel cover Photo 2 Compressor protector Run capacitor 52C relay Terminal block Screws 2. Fan motor (1) Remove front panel (3 screws). Open the panel to a 45 degree angle and lift to remove. The panel is clasped at three points on the left side. (2) Remove propeller (1 set nut). (3) Remove fan motor (3 screws). Remove lead connectors. Photo 3 Motor support Separator support place Propeller nut High-pressure switch Valve bed Crank case heater Propeller fan 69 OC120--3.qxp 24/6/97 12:58 AM Page 70 OPERATING PROCEDURE 3. Heat Exchanger, Compressor (1) Remove the rear / right side panel (2 screws in front, 1 screw on the side, 3 screws in the rear). Remove the electrical box, valve bed, and open to the rear to remove (anchors attached). (2) Remove right side panel (4 screws). (3) Remove rear guard (3 screws). (4) Remove separator support plate (4 screws). (5) Remove motor support (2 screws). (6) Remove valve bed (5 screws). The valve bed is clasped on the right and left sides. Lift to remove. (7) Remove the electrical parts box. Remove the respective connectors from highpressure switch, Low-pressure switch, crank case heater, shell thermo, and fan motor lead. (8) Remove separator (2 screws). (9) Remove heat exchanger (2 screws). Remove piping weld zone. (10) Remove compressor (3 set nuts). Remove the weldment of the compressor suction pipe and discharge pipe. NOTE : All panels are clasped, and must be removed by shifting up and down. PHOTOS Screws Photo 4 Screws Heat exchanger Photo 5 Accumulator Photo 6 Charge plug Ball valve Compressor 70 OC120--3.qxp 24/6/97 12:59 AM 12 Page 71 PART LIST PKH18FK PKH24FK PKH30FK STRUCTURAL PARTS PKH36FK Part number that are circled not shown in the figure. Q'ty / set No. Parts No. Parts Name Specifications Wiring Remarks Diagram (Drawing No.) Symbol 18FK 24FK 30FK 36FK PKH 1 R01 12G 661 RIGHT SIDE PANEL 1 1 1 1 2 R01 12G 662 LEFT SIDE PANEL 1 1 1 1 3 R01 12G 691 2 2 2 2 4 R01 16G 692 1 1 5 R01 12G 500 5 5 1 1 1 1 1 1 1 1 1 1 6 7 8 9 10 R01 12G 811 R01 16G 811 R01 12G 812 R01 16G 812 R01 12G 641 R01 16G 641 R01 12G 523 R01 12G 808 R01 16G 808 INTAKE GRILLE AIR FILTER NOSE UNDER PLATE TOP PLATE DRAIN SOKET BACK PLATE 4 4 1 1 1 1 1 1 1 1 1 1 71 OC120--3.qxp 24/6/97 1:00 AM Page 72 PKH-18FK PKH-24FK PKH-30FK PKH-36FK 33 34 24 21 14 Q'ty / set No. 1 2 3 4 Parts No. T7W BOO 762 T7W B01 762 R01 12G 105 R01 16G 105 R01 12G 115 R01 16G 115 R01 12G 114 R01 16G 114 5 R01 005 103 6 R01 12G 103 72 Parts Name FAN MOTOR RUBBER MOUNT RIGHT LINEFLOW FAN LEFT LINEFLOW FAN SLEEVE BEARING Specifications Wiring Remarks Diagram (Drawing No.) Symbol 18FK 24FK 30FK 36FK PKH 1 2 1 MF 1 1 2 2 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 MF OC120--3.qxp 24/6/97 1:00 AM Page 73 Q'ty / set No. Parts No. 7 R01 Z61 102 8 R01 KV5 102 9 10 T7W B02 529 T7W B03 529 R01 12G 223 R01 12G 002 11 R01 16G 002 Parts Name Specifications BEARING MOUNT DRAIN PAN VANE MOTOR AUTO VANE Wiring Remarks Diagram (Drawing No.) Symbol 18FK 24FK 30FK 36FK PKH 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 1 1 12 R01 12G 621 CENTER COVER 1 1 13 R01 12G 063 JOINT SHAFT 1 1 1 1 14 R01 KV5 527 DRAIN HOSE 1 1 1 1 1 1 1 1 15 T7W B02 480 T7W B03 480 HEAT EXCHANGER 16 T7W B05 310 CONTROLLER BOARD 17 T7W 410 239 FUSE 18 R01 377 246 19 R01 998 246 20 R01 A00 255 RUN CAPACITOR 21 T7W B02 799 TRANSFORMER 22 R01 06A 202 23 R01 22A 202 24 T7W 417 200 REMOTE CONTROLLER 25 R01 556 246 TERMINAL BLOCK 26 27 28 29 T7W 587 300 T7W 589 300 T7W B00 700 R01 12G 706 T7W 589 706 R01 479 215 R01 673 215 TERMINAL BLOCK THERMISTOR HEATER ELEMENT 1 1 1 1 I.B 250V 6A 2 2 2 2 F1.2<I.B> 3P(1, 2, 3) 1 1 2P(L1, L2) 1 1 1 1 TB4 2.5µF 440V 1 1 1 1 C 1 1 1 1 T 1 1 1 1 RT1 1 1 1 1 RT2 1 1 1 1 R.B 2P(1/2) 1 1 1 1 TB5 240V 700W 3 3 INDOOR COIL 240V 800W THERMAL SWITCH THERMAL FUSE RELAY 117¡C 10A 250V 1 1 2 1 3 3 1 1 H 26H FS1.2 1 FS1.2 LY1F DC1 2 2 88H LY2F DC12V 1 1 12m 1 1 2 2 31 T7W B02 675 32 T7W B03 675 33 T7W 351 077 REMOCON COVER 1 1 R01 20J 303 INSULATOR 1 1 R01 30J 303 INSULATOR 34 H 1 T7W 556 305 FAN GUARD TB2 117¡C 15A 250V 30 REMOTE CONTROLLER CABLE MV 88H 1 1 2 2 1 1 3 3 73 OC120--3.qxp 24/6/97 1:01 AM Page 74 PUH18EK FUNCTIONAL PARTS 74 OC120--3.qxp 24/6/97 1:01 AM Page 75 w This part is not shown in the illustration. Q'ty / set No. Parts No. Parts Name Specifications PUH 18EK Wiring Remarks Diagram (Drawing No.) Symbol 1 R01 A00 115 PROPELLER OUTDOOR FUNCTION 1 2 T7W 850 763 FAN MOTOR S6V-85FPH 1 MF 3 T7W A30 315 OUTDOOR CONTROLLER BOARD 1 O.B. 4 T7W 410 239 FUSE 5 T7W 850 716 6 R01 377 246 7 T7W A30 708 CONTACTOR 8 R01 576 255 FAN CAPACITOR 9 T7W A30 799 10 250V 6A 1 F 3P(L1,L2,GR) 1 TB1 3P(1,2,3) 1 TB3 S-U12 208/230V 1 52C 1 C1 1 T T7W 969 723 3µF 440V RED:12.3VAC,0.06A TRANSFORMER BRN:12.3VAC,0.06A COMPRESSOR CAPACITOR 30µF 370V 1 C 11 R01 J01 202 OUTDOOR COIL THERMISTOR 1 RT 12 T7W 969 238 OVERCURRENT RELAY MRA98881-90 1 51C 13 T97 665 600 COMPRESSOR RH-247NAB 1 MC 14 T7W 850 236 CRANKCASE HEATER 240V 30W 1 HC 15 T7W 875 242 R.V.COIL 1 21S4 16 T7W 875 403 4-WAY VALVE 1 17 R01 A00 208 CONTROL HIGH PRESSURE SWITCH OPEN psiG 363 1 63H1 18 T7W A30 208 PROTECT HIGH PRESSURE SWITCH OPEN psiG 469 1 63H2 19 T7W 973 507 FUSIBLE PLUG 1 20 T7W 869 242 B.V.COIL 1 21 R01 272 428 BYPASS VALVE 1 22 R01 V39 490 OIL SEPARATOR 1 23 R01 A00 425 CAPILLARY TUBE 24 R01 L11 418 RESTRICTOR VALVE 25 T7W 851 425 CAPILLARY TUBE 26 R01 A04 450 STRAINER 1 27 R01 A08 440 ACCUMULATOR 1 28 R01 590 413 29 R01 943 413 30 R01 943 410 31 R01 951 411 32 R01 A10 408 TERMINAL BLOCK 0.098o0.024o39.4 OUTDOOR HEAT EXCHANGER 1 1 0.157o0.079o33.5 1 1 CHARGE PLUG BALL BALVE 21R 1 3/8 1 5/8 1 1 75 OC120--3.qxp 24/6/97 1:02 AM Page 76 PUH24EK FUNCTIONAL PARTS 76 OC120--3.qxp 24/6/97 1:02 AM Page 77 w This part is not shown in the illustration. Q'ty / set Parts Name Specifications PUH Wiring Remarks Diagram (Drawing No.) Symbol No. Parts No. 1 R01 A00 115 PROPELLER OUTDOOR FUNCTION 2 2 T7W 851 763 FAN MOTOR S6V-60FPP 2 MF1,2 3 T7W A30 315 OUTDOOR CONTROLLER BOARD 1 O.B. 4 T7W 410 239 FUSE 250V 6A 1 F 5 T7W 850 716 3P(L1,L2,GR) 1 TB1 6 R01 377 246 3P(1,2,3) 1 TB3 7 T7W 867 708 CONTACTOR S-K25UR 208/230 1 52C 8 R01 653 255 FAN CAPACITOR 2 C1,2 24EK TERMINAL BLOCK 9 T7W A30 799 10 T7W 973 723 4µF 440V RED:12.3VAC,0.06A TRANSFORMER BRN:12.3VAC,0.06A COMPRESSOR CAPACITOR 40µF 400V 11 R01 J07 202 OUTDOOR COIL THERMISTOR 12 T97 517 300 COMPRESSOR 13 T7W 851 236 CRANKCASE HEATER 14 T7W A31 242 15 1 T 1 C 1 RT NH-33NBD 1 51C 240V 43W 1 MC R.V.COIL 1 HC T7W 260 403 4-WAY VALVE 1 21S4 16 R01 A00 208 CONTROL HIGH PRESSURE SWITCH OPEN psiG 363 1 17 T7W A30 208 PROTECT HIGH PRESSURE SWITCH OPEN psiG 469 1 63H1 18 T7W 973 507 FUSIBLE PLUG 1 63H2 19 T7W 869 242 B.V.COIL 1 20 R01 272 428 BYPASS VALVE 1 21 R01 A14 490 OIL SEPARATOR 1 22 R01 A00 425 CAPILLARY TUBE 23 R01 993 418 RESTRICTOR VALVE 24 R01 600 425 CAPILLARY TUBE 25 R01 A11 450 STRAINER 1 26 R01 A12 440 ACCUMULATOR 1 27 R01 590 413 28 R01 943 413 29 R01 943 410 30 R01 951 411 31 T7W A31 408 0.098o0.024o39.4 OUTDOOR HEAT EXCHANGER 1 1 0.126o0.063o17.3 2 1 CHARGE PLUG BALL BALVE 21R 3/8 1 5/8 1 1 2 77 OC120--3.qxp 24/6/97 1:02 AM Page 78 PUH30/36EK FUNCTIONAL PARTS 3 4 10·11 8 9 6 36 37 27 1 2 36 37 33 12 7 5 29 28 19·20 17·18 30·31 32 16 21 1 22 24 23 34 33 35 13·14 78 15 OC120--3.qxp 24/6/97 1:02 AM Page 79 w This part is not shown in the illustration. Q'ty / set No. Parts No. Parts Name PUH Specifications 30EK 36EK Wiring Remarks Diagram (Drawing No.) Symbol 1 R01 A00 115 PROPELLER OUTDOOR FUNCTION 2 2 2 T7W 852 763 FAN MOTOR VC086DC 2 2 MF1,2 3 T7W A30 315 OUTDOOR CONTROLLER BOARD 1 1 O.B. 4 T7W 410 239 FUSE 250V 6A 1 1 F 5 T7W 850 716 3P(L1,L2,GR) 1 1 TB1 6 R01 377 246 3P(1,2,3) 1 1 TB3 7 T7W 867 708 CONTACTOR S-K25UR 1 1 52C 8 T7W 867 723 COMPRESSOR 50µF 400V 1 9 T7W 975 723 CAPACITOR 60µF 360V 10 R01 653 255 11 R01 576 255 12 T7W A30 799 13 T97 511 300 14 T97 518 300 15 T7W 851 236 16 R01 J01 202 17 T7W A31 242 18 T7W 875 242 19 T7W 261 403 20 T7W 258 403 21 T7W 869 242 B.V.COIL 1 1 22 R01 A14 428 BYPASS VALVE 1 1 23 R01 A00 208 CONTROL HIGH PRESSURE SWITCH OPEN psiG 363 1 1 63H1 24 T7W A30 208 PROPECT HIGH PRESSURE SWITCH 1 1 63H2 25 R01 A14 490 OIL SEPARATOR 1 1 26 R01 A00 425 CAPILLARY TUBE 1 1 27 T7W 973 507 FUSIBLE PLUG 1 1 28 R01 A14 440 ACCUMLATOR 1 1 29 R01 993 418 RESTRICTOR VALVE 2 2 30 R01 591 425 31 R01 591 425 32 R01 A14 450 STRAINER 1 1 33 R01 943 413 CHARGE PLUG 2 2 34 R01 670 410 1/2 1 1 35 R01 670 411 3/4 1 1 36 R01 A14 408 37 R01 A16 408 TERMINAL BLOCK FAN CAPACITOR TRANSFORMER COMPRESSOR 4µF 440V 3µF 440V RED:12.3VAC,0.06A BRN:12.3VAC,0.06A NH-41NAD 1 1 THERMISTOR 1 T MC 1 1 1 HC PIPE TEMPERATURE 1 1 RT 240V 43W 21S 1 1 21S4 1 1 OPEN psiG 469 2.5o0.6-1000mm 0.157o0.079o23.6 21R 2 2 0.157o0.079o17.7 OUTDOOR HEAT EXCHANGER C1,2 MC 4-WAY VALVE BALL BALVE 2 1 R.V.COIL CAPILLARY TUBE C C1,2 2 NH-47NAD CRANKCASE HEATER C 2 2 79 OC120--3.qxp 24/6/97 1:03 AM Page 80 PUH18EK STRUCTURAL PARTS Q'ty / set Parts Name Specifications PUH No. Parts No. 1 R01 A08 668 FRONT PANEL 2 R01 A08 661 SERVICE PANEL 1 3 R01 A08 662 SIDE PANEL 1 4 R01 A00 675 FAN GUARD 1 5 R01 A00 641 TOP PANEL 1 6 R01 A00 658 PANEL COVER 1 7 R01 A00 686 BASE ASSEMBLY 1 8 R01 A08 682 REAR PANEL 1 9 R01 A08 698 REAR GUARD 1 18EK 80 OUTDOOR FUNCTION 1 Wiring Remarks Diagram (Drawing No.) Symbol OC120--3.qxp 24/6/97 1:04 AM Page 81 PUH24EK STRUCTURAL PARTS Q'ty / set Parts Name Specifications PUH No. Parts No. 1 R01 A00 641 TOP PANEL 1 2 R01 A11 668 FRONT PANEL 1 3 R01 A00 675 FAN GUARD 2 4 R01 A11 661 SERVICE PANEL 1 5 R01 A11 662 SIDE PANEL (LEFT) 1 6 R01 A11 682 REAR PANEL 1 7 R01 A00 658 PANEL COVER 1 8 R01 A11 698 REAR GUARD 1 9 R01 A10 686 BASE ASSEMBLY 1 24EK Wiring Remarks Diagram (Drawing No.) Symbol 81 OC120--3.qxp 24/6/97 1:05 AM Page 82 PUH30/36EK STRUCTURAL PARTS Q'ty / set Parts No. 30EK 36EK 1 R01 A14 641 TOP PANEL 1 1 2 R01 A14 668 FRONT PANEL 1 1 3 R01 A00 675 FAN GUARD 2 2 4 R01 A14 661 SERVICE PANEL 1 1 5 R01 A14 662 SIDE PANEL (LEFT) 1 1 6 R01 A14 682 REAR PANEL 1 1 7 R01 A00 658 PANEL COVER 1 1 8 R01 A14 698 REAR GUARD 1 1 9 R01 A14 686 BASE ASSEMBLY 1 1 82 Parts Name PUH No. Specifications Wiring Remarks Diagram (Drawing No.) Symbol OC120--3.qxp 24/6/97 1:05 AM 13 Page 83 OPTIONAL PARTS 1. REFRIGERANT PIPES FOR model: PKH18/24FK Part No Pipe length PAC-05FFS-E PAC-07FFS-E PAC-10FFS-E PAC-15FFS-E 5m 7m 10m 15m Liquid : 3/8 Pipe size OD Gas : 5/8 Indoor unit : Flared Outdoor unit : Flared Connection method FOR model : PKH30/36FK Part No Pipe length PAC-SC51PI-E PAC-SC52PI-E PAC-SC53PI-E PAC-SC54PI-E 5m 7m 10m 15m Liquid : 1/2 Pipe size OD Gas : 3/4 Indoor unit : Flared Outdoor unit : Flared Connection method Note 1. How to connect refrigerant pipes. Factory supplied optional refrigerant pipings contain refrigerant at the above atmospheric pressures. As long as the connection takes no more than 5 minutes, no air will enter, and there will be no need for air purging. Remove the blind caps and make the connections within 5 minutes. After the connections for the indoor and outdoor units are made, open the stop valve on the outdoor unit to allow refrigerant gas to flow. If piping length exceeds 5m,an additional charge of refrigerant is needed. Note 2. The following main parts are contained in the optional refrigerant piping kit. Heat insulating cover, vinyl tapes, nipples, sleeve and flange (for wall hole),connecting cables. 2. TIMER When using a program timer, PAC-SK65PT, a program timer adapter (PAC-825AD) is also needed. Part No. Model Name PAC-SK65PT (with set back function) Program timer 2-1 Program timer specifications Part name Part No. Exterior dimensions Installation Type of clock Clock accuracy Display — Time — Week — Timer setting Program cycle Timer setting unit No. of set points Power rating Se back function Program timer PAC-SK65PT 120 o 120 o 15mm Wall mount Quartz ± 50s / month Liquid cystal display Liquid cystal display Liquid cystal display 24 hours 30 minutes 48 / day 5V DC Provided 2-2 Feature of program timer (1) Daily timer function Daily timer can be set in 30 minutes units for up to 24 hours. Each unit can be set for unit ON, unit OFF, or setback operation. (2) Setback operation (PAC-SK65PT) Set back operation is useful for reducing running costs e.g. At a hotel with a 24-hour system 8:00~23:00 Cooling operation with set temperature at 26°C 23:00~8:00 Setback operation with 2 degrees of setback As shown in the chart on the right, the set temperature rises 2 degrees automatically during the setback operation. When the setback operation ends, nomal operation will begin. (3) Weekly timer function Daily timer function can apply to each day of the week. 28˚C 26˚C 8:00 Normal operation 23:00 Setback operation 8:00 Normal operation 83 OC120--3.qxp 24/6/97 1:05 AM Page 84 2-3. How to connect program timer (1) Install the program timer next to the remote controller the same way as the remote controller is installed. (2) Connect the program timer and the remote controller with a 6-wire cable as shown in the figure below 2-wire cable To indoor unit Remote controller Connector CN1 NOTE:While the program timer is connected to the remote controller, the 24hour ON/OFF timer on the remote controller will not operate. Program timer 5-wire cable Connector CN1 2-4 Names and functions <PAC-SK65PT> Mode selector button : Using this button to select ¨MONITOR¨ or ¨SET¨ mode. ¨MONITOR¨ : Indicates the current timer setting. All buttons except SET / MONITOR will not work. This is the normal status. ¨SET¨ : ¨SET¨ is used to set the time, change the day of the week, and program the daily and weekly timer. Mode dispay Current time display SET MONITOR CLOCK Current day display SMTWTFS GET BACK Weekly timer display TODAY WEERLY TIMER DEGREE SET BACK ON Set back display Daily timer dislay Clock adjustment button : Used to adjust the current time. Press AHEAD button to advance the time. Each time the button is pressed the time advances by 1 minute. Pressing continuously advances 1 minute in a 0.5 second interval. When the lower digit of minute SET/MONITOR becomes 0 the indication advances in 10 minutes unit. BACK button is used for BACK AHEAD reversing the time. Each time the button is pressed the time reverses by 1 minute. ON OFF Pressing continuously reverses the time by 1 minute in a 0.5 second interval. DAILY TIMER When the lower digit of minute becomes 0 AHEAD BACK the indication reverses in 10 minutes unit. SET BACK OFF MITSUBISHI ELECTRIC Day setting button : Used to adjust the day of the week. Pressing BACK button moves the day light display in the order of S➛M➛T➛W Weekly timer button : Used to set the weekly timer. NOTE : Display above is only an exanple Set back button : Used to set the set back amount. Set back can bee set in the range of 1 to 48˚F in 34˚F unit. Daily timer button : Used to set the timer settings in units of 30 minutes. 3. TIMER ADAPTER This adapter is needed for system control and for operation via external contacts. Adapter connection is described on page 57. Part No. 84 PAC-SA89TA-E ORN 1 BRN 2 RED 3 OC120--3.qxp 24/6/97 1:05 AM Page 85 4. MULTIPLE REMOTE CONTROLLER ADAPTER This adapter is needed for remote indication (operation/check). Adapter connection is described on page 69. Part No. PAC-SA88HA-E BRN RED ORN YLW GRN 1 2 3 4 5 5. CENTRALIZED REMOTE CONTROLLER Allows individual or combined control of up to 16 units. When using the PAC-805RC, the program timer adapter (PAC825AD)is also needed. See page 90. Part No. PAC-805RC 113 5-1. Dimensions 23.5 POWER ON/OFF ENGAGED Unit : mm 56.3 12 11 POWER ON/OFF ENGAGED GROUP PROGRAM TIMER DUAL CENTRAL CONTROLLER OPERATION AHEAD ACTIVE BYPASS 1 2 3 4 5 6 7 8 9 10 DUAL CENTRAL GROUP SELECTION ACTIVE BYPASS PROGRAM TIMER DUAL CENTRAL CONTROLLER OPERATION BACK AHEAD ACTIVE BYPASS 113 ACTIVE BYPASS GROUP BACK 8 GROUP SELECTION 117 1 2 3 4 5 6 7 8 9 10 DUAL CENTRAL MITSUBISHI ELECTRIC 10 9 8 7 6 5 4 3 2 1 117 5-2. Functions POWER ON/OFF switch Operation ON/OFF switch. "ENGAGED" indicator When this indicator is lit, transmission is in progress and all switches are inoperative. DUAL/CENTRAL switch This change-over switch governing the operation of the accessory remote controller. "DUAL" Instructions from both the accessory remote controller and the centralized remote controller are valid. (Priority given to the last instruction received.) "CENTRAL" ON/OFF switching by the accessory remote controller is invalidated. Controll is by the centralized remote controller only. Initial setting is "DUAL". ▲BACK ▼AHEAD buttons These buttons are used to designate the attached unit(s). (They designate the unit that is centrally controlled.) POWER ON/OFF ENGAGED GROUP 1 2 3 4 5 6 7 8 9 10 GROUP SELECTION ACTIVE BYPASS PROGRAM TIMER DUAL CENTRAL CONTROLLER OPERATION BACK AHEAD ●When group “00” is designated; collective ON/OFF instruction is sent to all units. ACTIVE BYPASS DUAL CENTRAL MITSUBISHI ELECTRIC LCD Matrix Display This display indicates the operational status of all connected units either by steady lighting or by flashing. Independent “DUAL / CENTRAL” and “ACTIVE / BYPASS” setting of all the groups is possible. When the power supply to the centralized remote controller is cut due to power failure, all settings will return to original “DUAL” and “BYPASS”. ●When group “01”-“16“ is designated; ON/OFF instruction is sent to the designated units only. ACTIVE/BYPASS switch This is a change-over switch for the program timer. (It selects timer operation on the program timer.) Use “BYPASS” when a program timer is not connected. “ACTIVE” The switch tums ON/OFF operational instructions from the program timer automatically. “BYPASS” ON/OFF Operation is by the centralized remote controller only. Initial setting is “BYPASS”. 85 OC120--3.qxp 24/6/97 1:05 AM Page 86 5-3 Connection method (1) Connections in the power supply cord. 1. Connect the power supply cord to the power supply terminal-block and fix it in-place with a tie-wrap. Connect a single phase 200V AV (220, 230, 240V) to A N. As E is the GND terminal, be sure to ground the earth wire. 2. Connect the transmission line to the transmission terminal-block and fix it in-place with a tie-wrap. Use a Ø1.6 (AWG 14) or above two-wire cable for the transmission line. CAUTION : Never connect the power supply cord to the transmission terminal-block. TERMINAL-BLOCK FOR TRANSMISSION TERMINAL-BLOCK OF POWER SUPPLY Transmission A T N 240 230 (O) 220 (R) 200 E (W) (BR) Tie-wrap (Y) 5A TRANSFORMER Fuse(5A) A POWER SUPPLY N Tie-wrap E Wiring has to be changed when a 200,230 or 240V power is used. (2) Connection method of centralized remote controller and power supply board. 1. Connect the centralized remote controller and power supply board with a non-polar, two-wire cable. Power supply board box To adaptor's terminal-block POWER ON/OFF ENGAGED GROUP 1 2 3 4 5 6 7 8 9 10 GROUP SELECTION ACTIVE BYPASS PROGRAM TIMER DUAL CENTRAL CONTROLLER OPERATION BACK AHEAD ACTIVE BYPASS DUAL CENTRAL 10 9 8 7 6 5 4 3 2 1 Centralized remote controller To adaptor's terminal-block Non-polar, two-wire cable 2. Wiring diagram 3. Be sure to set the maximum address number with the dipswitch SW17 on the centralized remote controller. POWER ON/OFF ENGAGED GROUP 1 2 3 4 5 6 7 8 9 10 Centralized remote controller GROUP SELECTION ACTIVE BYPASS PROGRAM TIMER DUAL CENTRAL CONTROLLER OPERATION BACK AHEAD ACTIVE BYPASS DUAL CENTRAL Power supply board 10 9 8 7 6 5 4 3 2 1 86 Dip switch SW17 OC120--3.qxp 24/6/97 1:05 AM Page 87 6. PROGRAM TIMER ADAPTER This adapter is needed when a program timer(PAC-SK65PT)or a centralized remote controller(PAC-805RC)is used. Part No. PAC-825AD 6-1 Parts included 1 ADAPTER··························x1 2 3-core cable ···························x1 3 3-core cable ···························x1 Length : 2m (6' 7") Length : 2m (6' 7") 4 4-core cable ···························x1 5 5-core cable ···························x1 Length : 2m (6' 7") Length : 2m (6' 7") 6-2 Connection method Connection and wiring methods differ with the type of the indoor unit used. Confirm the type before carrying out the work. (1) Connections in the adapter box 1. Connect the power supply cord to the terminal-block and fix it in-place with a tie-wrap. Connect a single phase 200V (220, 230, 240V) AV to A N. As E is the GND terminal, be sure to ground the earth wire. 2. Connect the transmission line to the transmission terminal-block and fix it in-place with a tie-wrap (when a centralized remote controller is being used). CAUTION : Never connect the power supply cord to the transmission terminal-block Fig-1 CN22 Dip switch (AG) CN1 CN21 CN51 CN30 CN42 CN50 CN40 A N Tie-wrap TERMINAL-BLOCK (W) FOR POWER SUPPLY Terminal block for E Tie-wrap Transmission cord SW1 TRANS Fuse(5A) TRANSFORMER tr ans m i s s i on to program timer or centralized remote controller T (B) (Y) 220 240 TRANS SW1 200 CN22 TERMINAL-BLOCK FOR TRANSMISSION Fig-2 5A A POWER SUPPLY N E POWER SUPPLY CORD Wiring has to be changed when 200V power supply is used. (2) When the centralized remote controller is used, set the address number with the dipswitch SW1 of the program timer adapter. 87 OC120--3.qxp 24/6/97 1:05 AM Page 88 cCopyright 1997 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD. Issued in Jun. 1997. No. OC120 5020 New publication, effective Jun. 1997 Specifications subject to change without notice 3400 Lawrenceville Suwanee Road ● Suwanee, Georgia 30024 Toll Free: 800-433-4822 ● Toll Free Fax: 800-889-9904 www.mrslim.com Specifications are subject to change without notice.