Download Mitsubishi Mr.Slim PLH-AAK Specifications
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Oc244--1.qxd 7/16/2001 4:12 PM Page 1 PLH18AK PLH24AK PLH30AK PLH36AK PLH42AK CONTENTS 1. FEATURES ····································································································OC244- 2 2. PART NAMES AND FUNCTIONS ··································································OC244- 4 3. SPECIFICATIONS ··························································································OC244- 6 4. DATA ··············································································································OC244- 7 5. OUTLINES AND DIMENSIONS ····································································OC244-21 6. REFRIGERANT SYSTEM DIAGRAM ····························································OC244-22 7. WIRING DIAGRAM ························································································OC244-23 8. OPERATION FLOW-CHART ··········································································OC244-24 9. MICROPROCESSOR CONTROL ··································································OC244-28 10. TROUBLESHOOTING ····················································································OC244-43 11. 4-WAY AIR FLOW SYSTEM ··········································································OC244-49 12. SYSTEM CONTROL ······················································································OC244-54 13. DISASSEMBLY PROCEDURE ······································································OC244-59 14. PARTS LIST ····································································································OC244-62 15. OPTIONAL PARTS ························································································OC244-65 OC244-1 Oc244--1.qxd 1 7/16/2001 4:12 PM Page 2 FEATURES SWING TIMER OFF TIMER CLOCK AUTO AUTO CHECK SET TEMP. FAN START STOP SPEED FILTER AUTO RETURN Microprocessor Remote controller Indoor Unit Models PLH18AK PLH24AK PLH30AK PLH36AK PLH42AK Cooling capacity / Heating capacity 18,000 24,000 30,000 35,400 42,000 / / / / / 19,000 26,000 33,000 38,000 44,300 (25,500) (32,500) (41,200) (47,600) (53,900) CHECK MODE TEST RUN Btu/h Btu/h Btu/h Btu/h Btu/h SEER 10.5 10.3 10.4 10.0 10.7 1. SPACE-SAVING CENTRALLY LOCATED CEILING RECESSED INSTALLATION 2. 4-WAY AIR FLOW SYSTEM This series allows you to select from 2, 3, and 4 way air flow directions according to your requirement. As a result, you get superb flexibility in choosing a configuration that gives you maximum cooling/heating efficiency in a neat and unobstructive installation. 3. STABLE COOLING EVEN AT OUTDOOR TEMPERATURES AS LOW AS 0--F MAKES YEAR-ROUND AIR-CONDITIONING POSSIBLE The microprocessor automatically adjusts fan speed in accordance with outdoor temperature to maintain the coolant at an even condensing temperature. The result is smooth, efficient cooling even when temperatures outdoors drop as low as 0-F. This makes the unit ideal for a wide range of specialized cooling needs, such as rooms with many office machines or computers and areas subject to strong sunlight. 4. ADVANCED MICROPROCESSOR CONTROL (1) Easy to use Microprocessor (remote controller) 1) Ultra-Thin Remote Controller The streamlined, wide 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) Attractive Liquid Crystal Display (LCD) Units operation mode, set temperature, room temperature, timer setting, fan speed, 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. 4) Self-Diagnostic Feature Indicates Faults Instantly In the rare case when a problem occurs, the unit stops operating and the set temperature indicator changes to the selfdiagnostic 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 trouble-free. Remote controller wire can be extended up to 550 yards. OC244-2 Oc244--1.qxd 7/16/2001 4:12 PM Page 3 (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 temperature. In addition, the use of outdoor unit fan speed controller enables cooling operation at outdoor temperature as low as 0-F. 5. DRAIN PUMP FOR EASY PIPE CONNECTION (DRAIN LIFT-UP MECHANISM) This mechanism, with its capacity to raise drain water 33-7/16 inch above the ceiling line, is convenient for removing water and avoiding piping contact with beams, etc. 6. FRESH AIR INTAKE AND BRANCH DUCTING ARE AVAILABLE (on-site work) 7. REDI-CHARGED REFRIGERANT SYSTEM The industry is first redi-charge refrigerant system. There is no need to adjust the amount of refrigerant to match the piping length on-site unless lines exceed 100feet. You will see a major reduction in installation time and labor costs. 8. 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. 9. NITROGEN GAS IS CHARGED TO INDOOR UNIT. Indoor unit and refrigerant pipes are charged with nitrogen gas (N2) instead of (R22) before shipment from the factory. OC244-3 Oc244--1.qxd 2 7/16/2001 4:12 PM Page 4 PART NAMES AND FUNCTIONS ● Indoor (Main) Unit Filter Remove dust and pollutants from return air Horizontal Air Outlet Sets airflow horizontal automatically during cooling or dehumidifying. Grille Auto Air Swing Vane Disperses airflow up and down and adjusts the angle of airflow direction. Air Intake Returns air from room. ● Remote controller On the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button. ● Operation buttons TIMER ON/OFF button This switches between continuous operation and the timer operation. CLOCK/TIMER button FAN SPEED button This sets or switches the current time,start time and stop time. This sets the ventilation fan speed. ON/OFF button OPERATION MODE button This switches between the operation and stop modes each time it is press. The lamp on this button lights during operation. Press this button to switch the cooling,electronic dry (Dehumidify),automatic and heating modes. SWING DRY COOL TIMER OFF TIMER CLOCK AUTO AUTO AUTO CHECK SET TEMP. START STOP FAN SPEED HEAT SET TEMPERATURE button This sets the room temperature. The temperature setting can be performed in 2-F units. Setting range : Cooling 65-F to 87-F Heating 61-F to 83-F MODE F AIR DISCHARGE button AUTO RETURN TIMER ON/OFF CLOCK/TIMER FAN SPEED AIR DISCHARGE FILTER AIR SWEEP SET TEMP. TIMER SET This adjusts the vertical angle of the vane. CHECK TEST RUN REMOTE CONTROLLER PAR-JH241KUS FILTER button This resets the filter service indication display. CHECK-TEST RUN button AIR SWEEP button This switches the horizontal louver motion ON and OFF. Press twice this button to perform an inspection check or test operation. Do not use it for normal operation. (Not available for this model.) OC244-4 Oc244--1.qxd 7/16/2001 4:12 PM Page 5 ● Display CENTRALLY CONTROLLED display This indicates when the unit is controlled by optional features such as central control type remote controller. In this display example on the bottom left, a condition where all display lamps light is shown for explanation purposes although this differs from actual operation. CLOCK display The current time , start time and stop time can be displayed in ten second intervals by pressing the time switch button. The start time or stop time is always displayed during the timer operation. AIR DISCHARGE display This displays the air direction. TIMER display FAN SPEED display This indicates when the continuous operation and time operation modes are set. It also display the time for the timer operation at the same time as when it is set. The selected fan speed is displayed. display SWING OPERATION MODE display DRY COOL TIMER OFF TIMER CLOCK AUTO AUTO AUTO CHECK SET TEMP. START STOP FAN SPEED HEAT F AUTO RETURN This indicates the operation mode. MODE TIMER ON/OFF CLOCK/TIMER FAN SPEED AIR DISCHARGE FILTER STANDBY display This indicates when the standby mode is set from the time the heat operation starts until the heating air is discharged. AIR SWEEP SET TEMP. TIMER SET CHECK TEST RUN REMOTE CONTROLLER PAR-JH241KUS CHECK MODE TEST RUN This indicates when the defrost operation is performed. display This indicates when a malfunction has occurred in the unit which should be checked. Operation lamp This lamp lights during operation, goes off when the unit stops and flashes when a malfunction occurs. DEFROST display CHECK The temperature of the return air is displayed during operation. The display range is 47° to 97°F. The display flashes 47°F when the actual temperature is less than 47° and flashes 97°F when the actual temperature is greater than 97°F. display This display lights in the check mode or when a test operation is performed. display display FILTER This displays the selected setting temperature. This lamp lights when electricity is supplied to the unit. display This lamp lights when the filter needs to be cleaned. Caution ● Only the display lights when the unit is stopped and power supplied to the unit. ● When power is turned ON for the first time the (CENTRAL CTRL) display appears to go on momentarily but this is not a malfunction. ● When the central control remote control unit, which is sold separately, is used the ON-OFF button,OPERATION MODE button and SET TEMP button do not operate. ● “NOT AVAILABLE” is displayed when the AIR SWEEP button are pressed. (AIR SWEEP function is not provided for PLH series.) OC244-5 Oc244--1.qxd 3 7/16/2001 4:12 PM Page 6 SPECIFICATIONS MODELS : PLH18/24/30/36/42AK Model PLH18AK PLH24AK PLH30AK PLH36AK PLH42AK Item Btu/h Cooling *1 35,400 24,000 18,000 30,000 42,000 Heating *1, *3 Btu/h 19,000(24,500/25,500) 26,000(31,500/32,500) 33,000(39,500/41,200) 38,000(45,900/47,600) 44,300(52,200/53,900) Heating *2, *3 Btu/h 11,000(16,500/17,500) 16,500(22,000/23,000) 18,500(25,000/26,700) 23,000(30,900/32,600) 26,800(34,700/36,400) Pints/h Moisture removal 10.9 7.0 5.3 9.1 12.3 kW Cooling *1 3.63 2.57 1.75 3.17 3.98 Power Heating *1, *3 kW 3.45(5.75/6.25) 2.51(4.11/4.41) 1.59(3.19/3.49) 3.04(4.94/5.44) 3.82(6.12/6.62) Consumption Heating *2, *3 kW 2.93(5.23/5.73) 2.15(3.75/4.05) 1.32(2.92/3.22) 2.55(4.45/4.95) 3.24(5.54/6.04) *1 EER 9.8 9.3 10.3 9.5 10.6 SEER 10.0 10.3 10.5 10.4 10.7 HSPF 7.1 7.0 7.2 6.9 7.0 *1 3.2 3.0 3.5 3.2 3.4 COP *2 2.3 2.2 2.4 2.1 2.4 INDOOR UNIT MODELS PLH36AK PLH24AK PLH18AK PLH30AK PLH42AK External finish Galvanized sheets with gray heat insulation V,phase,Hz Power supply 208/230,1,60 20 A Max.fuse size (time delay) 25 15 A Min.ampacity 17 1.2 1.4 F.L.A. Fan motor 0.7 7.7/8.3(1.6/1.9) 11.1/12.2(2.3/2.8) A(kW) Booster heater 9.1/10.4(1.9/2.4) CFM Dry 1060-780 990-710 710-530 Airflow Hi-Lo CFM Wet 1020-740 950-670 670-490 45-37 dB Sound level Hi-Lo 41-33 37-31 43-35 in. Unit drain pipe O.D. 1-1/4 in. W 33-1/16 in. D Dimensions 33-1/16 11-3/4 in. H 10-3/16 71 75 lb Weight 57 External finish Munsell 0.7Y 8.59/0.97 in. W 37-3/8 in. 37-3/8 Dimensions D in. H 1-3/16 lb Weight 11 OUTDOOR UNIT MODELS PUH36EK1 PUH24EK PUH18EK PUH30EK1 PUH42EK7 INDOOR GRILLE Capacity 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 Heating 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,60˚FWB 115˚FDB 0˚FDB* 75˚FDB,65˚FWB 17˚FDB,15˚FWB In case of the wind baffle is installed. (In case of the wind baffle is not installed, the minimum temperature will be 23˚FDB.) OC244-6 Oc244--1.qxd 7/16/2001 4 4:12 PM Page 7 DATA MODELS : PLH18/24/30/36/42AK 1. PERFORMANCE DATA 1) COOLING CAPACITY Indoor air Models Airflow (CFM) B.F PLH42AK 85 95 105 115 TC SHC TPC SHC TPC TC 21.4 14.4 1.45 20.9 14.1 1.53 20.3 13.6 1.64 19.4 13.0 1.80 18.4 12.4 1.96 17.6 11.8 2.10 67 20.1 16.3 1.42 19.5 15.8 1.49 18.9 15.3 1.60 18.0 14.6 1.75 17.1 13.8 1.90 16.3 13.2 2.02 63 18.8 17.7 1.39 18.2 17.2 1.46 17.6 16.6 1.57 16.8 15.8 1.70 15.9 15.0 1.84 15.1 14.2 1.96 DB 75-F (50%RH) 62.5 18.6 15.9 1.39 18.1 15.4 1.46 17.4 14.9 1.59 16.6 14.1 1.70 15.7 13.4 1.84 14.9 12.7 1.95 DB 72-F (50%RH) 60 17.9 15.2 1.37 17.3 14.7 1.44 16.7 14.2 1.54 15.9 13.5 1.67 15.1 12.8 1.81 14.3 12.1 1.92 DB 70-F (50%RH) 59 17.6 14.9 1.36 17.0 14.4 1.43 16.4 13.9 1.53 15.6 13.2 1.66 14.8 12.5 1.79 14.0 11.8 1.90 71 28.5 19.2 2.13 27.9 18.8 2.24 27.0 18.2 2.41 25.8 17.4 2.64 24.6 16.5 2.88 23.5 15.8 3.08 67 26.8 21.7 2.09 26.0 21.1 2.19 25.2 20.4 2.35 24.0 19.4 2.57 22.8 18.5 2.79 21.7 17.6 2.97 63 25.1 23.6 2.05 24.3 22.9 2.14 23.5 22.1 2.30 22.4 21.1 2.50 21.2 19.9 2.71 20.1 19.0 2.88 DB 75-F (50%RH) 62.5 24.8 21.1 2.04 24.1 20.5 2.14 23.2 19.8 2.29 22.1 18.9 2.49 21.0 17.9 2.70 19.9 17.0 2.87 DB 72-F (50%RH) 60 23.8 20.3 2.02 23.1 19.6 2.11 22.3 19.0 2.26 21.2 18.0 2.46 20.1 17.1 2.65 19.1 16.2 2.82 DB 70-F (50%RH) 59 23.4 19.8 2.00 22.7 19.2 2.10 21.9 18.5 2.24 20.8 17.6 2.44 19.7 16.6 2.63 18.7 15.8 2.79 71 35.7 22.6 2.63 34.9 22.1 2.76 33.8 21.4 2.97 32.3 20.4 3.26 30.7 19.4 3.55 29.3 18.5 3.81 67 33.4 25.8 2.58 32.6 25.1 2.70 31.5 24.2 2.90 30.0 23.1 3.17 28.5 21.9 3.44 27.1 20.9 3.66 670 0.14 950 0.09 PLH24AK PLH36AK IWB (˚F) 71 PLH18AK PLH30AK Outdoor intake air DB temperature(˚F) 75 65 1020 0.14 TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC 63 31.3 28.2 2.53 30.4 27.4 2.64 29.3 26.5 2.84 27.9 25.2 3.09 26.5 23.9 3.34 25.2 22.7 3.55 DB 75-F (50%RH) 62.5 31.0 25.2 2.52 30.1 24.4 2.64 29.1 23.6 2.83 27.7 22.5 3.08 26.2 21.3 3.33 24.9 20.2 3.54 DB 72-F (50%RH) 60 29.8 24.1 2.49 28.9 23.4 2.60 27.9 22.6 2.79 26.5 21.5 3.03 25.1 20.3 3.27 23.8 19.3 3.48 DB 70-F (50%RH) 59 29.3 23.6 2.47 28.4 22.9 2.59 27.4 22.0 2.77 26.0 21.0 3.01 24.6 19.8 3.25 23.3 18.8 3.44 71 42.1 25.3 3.02 41.2 24.8 3.16 39.9 24.0 3.41 38.1 22.9 3.73 36.2 21.8 4.07 34.6 20.8 4.36 67 39.5 29.2 2.95 38.4 28.4 3.09 37.1 27.5 3.33 35.4 26.2 3.63 33.6 24.9 3.94 32.0 23.7 4.20 1020 0.06 63 37.0 32.2 2.89 35.9 31.3 3.03 34.6 30.2 3.25 33.0 28.8 3.54 31.2 27.2 3.82 29.7 25.9 4.07 DB 75-F (50%RH) 62.5 36.6 28.6 2.88 35.5 27.8 3.02 34.3 26.8 3.24 32.7 25.5 3.52 30.9 24.2 3.81 29.4 23.0 4.05 DB 72-F (50%RH) 60 35.2 27.4 2.85 34.1 26.6 2.98 32.9 25.7 3.19 31.3 24.4 3.47 29.6 23.1 3.75 28.1 21.9 3.98 DB 70-F (50%RH) 59 34.6 26.8 2.83 33.5 26.0 2.96 32.3 25.0 3.17 30.7 23.8 3.44 29.0 22.5 3.72 27.5 21.4 3.94 71 50.0 27.6 3.31 48.9 27.0 3.47 47.3 26.1 3.73 45.2 24.9 4.09 43.0 23.7 4.46 41.1 22.7 4.78 67 46.8 32.3 3.24 45.6 31.4 3.39 44.0 30.4 3.65 42.0 29.0 3.98 39.9 27.5 4.32 38.0 26.2 4.60 63 43.8 36.0 3.17 42.6 35.0 3.32 41.1 33.8 3.56 39.1 32.2 3.88 37.1 30.5 4.19 35.2 29.0 4.46 DB 75-F (50%RH) 62.5 43.4 31.8 3.16 42.1 30.9 3.31 40.7 29.8 3.55 38.7 28.4 3.86 36.7 26.9 4.18 34.9 25.5 4.44 DB 72-F (50%RH) 60 41.7 30.5 3.12 40.4 29.5 3.27 39.0 28.5 3.50 37.1 27.1 3.80 35.1 25.6 4.11 33.3 24.3 4.36 DB 70-F (50%RH) 59 41.0 29.8 3.10 39.7 28.8 3.25 38.3 27.8 3.48 36.4 26.4 3.78 34.4 25.0 4.07 32.7 23.7 4.32 1020 0.06 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 25ft 40ft 55ft 70ft 85ft 100ft 115ft 130ft PLH18AK 1.0 0.992 0.983 0.978 0.966 0.959 0.950 0.945 PLH24AK 1.0 0.981 0.968 0.952 0.940 0.925 0.913 PLH30AK 1.0 0.981 0.968 0.952 0.940 0.925 PLH36AK 1.0 0.981 0.968 0.952 0.940 PLH42AK 1.0 0.975 0.955 0.935 0.918 150ft 164ft 0.900 0.886 0.874 0.913 0.900 0.886 0.874 0.925 0.913 0.900 0.886 0.874 0.900 0.884 0.869 0.855 0.840 OC244-7 Oc244--1.qxd 7/16/2001 4:12 PM Page 8 2) HEATING CAPACITY Indoor air Models PLH18AK PLH24AK PLH30AK PLH36AK PLH42AK Airflow (CFM) 710 990 1060 1060 1060 IDB (˚F) Auxiliary heater 208V 230V Outdoor intake air WB temperature(˚F) 15 25 35 45 55 65 CA PC CA PC CA PC CA PC CA PC CA PC CA PC 75 12.5 1.23 14.4 1.36 16.8 1.53 19.1 1.68 22.0 1.87 24.7 2.04 5.5 1.6 70 12.8 1.19 14.7 1.32 17.2 1.48 19.5 1.62 22.4 1.80 25.0 1.96 65 13.1 1.15 15.0 1.27 17.6 1.42 19.9 1.56 22.9 1.73 25.5 1.88 6.5 1.9 75 17.1 1.94 19.7 2.15 23.0 2.42 26.1 2.66 30.1 2.95 33.7 3.21 5.5 1.6 70 17.5 1.88 20.1 2.08 23.5 2.33 26.6 2.56 30.7 2.84 34.2 3.09 65 17.9 1.81 20.6 2.00 24.1 2.24 27.2 2.45 31.3 2.73 34.9 2.97 6.5 1.9 75 21.8 2.36 25.0 2.16 29.2 2.93 33.1 3.22 38.2 3.58 42.8 3.89 6.5 1.9 70 22.2 2.28 25.5 2.52 29.9 2.82 33.8 3.10 38.9 3.44 43.5 3.74 8.2 2.4 65 22.8 2.19 26.1 2.42 30.5 2.71 34.5 2.97 39.7 3.30 44.3 3.59 75 25.0 2.67 28.7 2.96 33.7 3.33 38.1 3.65 44.0 4.06 49.3 4.42 7.8 2.3 70 25.6 2.58 29.4 2.86 34.4 3.20 38.9 3.51 44.8 3.90 50.0 4.25 9.6 2.8 65 26.2 2.49 30.1 2.75 35.2 3.08 39.8 3.37 45.7 3.75 51.0 4.08 75 29.2 2.96 33.5 3.28 39.2 3.68 44.5 4.04 51.3 4.49 57.5 4.89 7.8 2.3 70 29.9 2.86 34.3 3.16 40.1 3.55 45.4 3.89 52.2 4.32 58.3 4.70 9.6 2.8 65 30.6 2.75 35.1 3.04 41.0 3.41 46.3 3.74 53.3 4.15 59.5 4.52 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 consumption should be added the figures described in booster heater column. •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 PLH18AK 1.00 0.995 0.990 PLH24AK 1.00 0.995 0.990 PLH30AK 1.00 0.995 0.990 PLH36AK 1.00 0.995 0.990 PLH42AK 1.00 0.995 0.990 OC244-8 Oc244--1.qxd 7/16/2001 4:12 PM Page 9 2. PERFORMANCE CURVE NOTES : A point on the curve shows the reference point. PLH18AK COOLING CAPACITY SHF=0.81 Indoor intake air WB temperature ( F) 18 71 67 63 Total capacity (x10 3 Btu/h) 24 Does not include booster heater (1.9kW) 30 12 Indoor intake air DB temperature ( F) 18 2.5 71 67 63 2.0 1.5 Indoor intake air WB temperature ( F) 1.0 023 32 35 45 55 65(67) 75 85 95 105 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) 45 55 65 30 24 71 67 63 Indoor intake air WB temperature ( F) Does not include booster heater (1.9kW) 36 18 Total capacity (x10 3 Btu/h) Total capacity (x10 3 Btu/h) 35 PLH24AK HEATING CAPACITY SHF=0.81 36 25 Outdoor intake air WB temperature ( F) PLH24AK COOLING CAPACITY 12 Indoor intake air DB temperature ( F) 65 70 75 30 24 18 12 71 67 63 3.0 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 OC244-9 Total power consumption (kW) Total power consumption (kW) 65 70 75 24 12 Total power consumption (kW) Total capacity (x10 3 Btu/h) 30 Total power consumption (kW) PLH18AK HEATING CAPACITY 75 70 65 3.0 2.5 2.0 Indoor intake air DB temperature ( F) 1.5 15 25 35 45 55 Outdoor intake air WB temperature ( F) 65 Oc244--1.qxd 7/16/2001 4:12 PM Page 10 NOTES : A point on the curve shows the reference point. PLH30AK COOLING CAPACITY SHF=0.77 48 Total capacity(x10 3 Btu/h) Total capacity(x10 3 Btu/h) 42 36 30 indoor intake air WB temperature(-F) 4.0 Total power consumption(kW) 71 67 63 24 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) 36 30 24 18 4.0 3.0 2.5 2.0 indoor intake air DB temperature(-F) 71 67 63 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 Btu/h) Total power consumption(kW) 4.5 25 35 45 55 65 Outdoor intake air WB temperature(-F) 36 indoor intake air WB temperature(-F) 75 70 65 3.5 15 42 30 65 70 75 indoor intake air DB temperature(-F) 115 SHF=0.74 48 Does not include booster heater(2.4kW) 42 PLH36AK COOLING CAPACITY 3 Total power consumption(kW) PLH30AK HEATING CAPACITY PLH36AK HEATING CAPACITY Does not include booster heater(2.8kW) indoor intake air DB temperature(-F) 48 65 70 75 42 36 30 24 4.5 75 70 65 4.0 3.5 3.0 2.5 indoor intake air DB temperature(-F) 2.0 15 25 35 45 55 Outdoor intake air WB temperature(-F) OC244-10 65 Oc244--1.qxd 7/16/2001 4:12 PM Page 11 NOTES : A point on the curve shows the reference point. PLH42AK COOLING CAPACITY SHF=0.69 48 42 71 67 63 36 indoor intake air WB temperature(-F) 71 67 63 4.5 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 OC244-11 Total capacity(x10 3 Btu/h) 60 Total power consumption(kW) Total power consumption(kW) Total capacity(x10 3 Btu/h) 54 PLH42AK HEATING CAPACITY Does not include booster heater(2.8kW) indoor intake air DB temperature(-F) 54 65 70 75 48 42 36 30 75 70 65 4.5 4.0 3.5 3.0 2.5 indoor intake air DB temperature(-F) 15 25 35 45 55 Outdoor intake air WB temperature(-F) 65 Oc244--1.qxd 7/16/2001 4:12 PM Page 12 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. <PLH18AK> COOLING MODE 86 80 100 75 (psi.G) 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 80 86 80 75 70 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 (psi.G) 350 340 330 320 310 300 290 280 270 260 ) (F 250 re u 75 t 240 ra 70 230 pe m 65 220 te B 210 D or 200 do 190 In 180 170 160 150 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature 80 ur e( F ) Condensing pressure (psi.G) ra t 75 70 65 te m pe 60 40 do or DB 50 In Suction pressure 70 30 20 10 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature OC244-12 110 DB( F) Oc244--1.qxd 7/16/2001 4:12 PM 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. <PLH24AK> COOLING MODE Suction pressure 86 80 (psi.G) 100 75 70 90 Condensing pressure 360 (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 Indoor DB temperature( F) 80 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 Data is based on the condition of outdoor humidity 75%. A point on the curve shows the reference point. HEATING MODE OC244-13 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 pe 260 m te 250 75 B 240 rD 70 o o 230 nd 65 I 220 210 200 190 180 170 160 150 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature 30 20 10 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature 110 DB( F) Oc244--1.qxd 7/16/2001 4:12 PM Page 14 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. <PLH30AK> COOLING MODE (psi.G) 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 Suction pressure Condensing pressure 86 (psi.G) 110 80 100 75 70 90 Indoor DB temperature( F) 86 80 75 70 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 (psi.G) 340 330 320 310 300 290 280 F) e( 270 r tu 260 ra pe 75 250 m te 70 240 B 65 D 230 r oo 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 (F ) (psi.G) 80 m pe ra tu re Condensing pressure 70 te or D do 40 B 50 In Suction pressure 60 75 70 65 30 20 10 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature OC244-14 110 DB( F) Oc244--1.qxd 7/16/2001 4:12 PM Page 15 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. <PLH36AK > COOLING MODE (psi.G) 90 Indoor DB temperature( F) 86 80 75 70 Indoor DB temperature(-F) 80 Suction pressure 86 80 75 70 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 70 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 Data is based on the condition of outdoor humidity 75%. A point on the curve shows the reference point. HEATING MODE OC244-15 ur e( F ) (psi.G) 80 pe ra t 70 75 70 65 te m 60 or 40 DB 50 In do Suction pressure Condensing pressure (psi.G) 350 340 330 320 310 ) (F 300 re u t 290 ra pe 280 m te 270 DB 260 r 75 o 250 70 do 240 In 65 230 220 210 200 190 180 170 160 150 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature 30 20 10 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature 110 DB( F) Oc244--1.qxd 7/16/2001 4:12 PM Page 16 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. <PLH42AK > COOLING MODE 86 80 75 70 (psi.G) 90 86 80 75 70 Indoor DB temperature(-F) Condensing pressure 80 Suction 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) 70 60 50 40 30 20 30 40 50 60 70 80 90 Outdoor ambient temperature 100 30 110 DB( F) 40 50 60 70 80 90 Outdoor ambient temperature Data is based on the condition of outdoor humidity 75%. A point on the curve shows the reference point. HEATING MODE (F ) (psi.G) 80 pe ra tu re 70 75 70 65 te m 60 do o 40 rD B 50 In Suction pressure Condensing pressure (psi.G) 350 340 330 320 310 F) 300 e( r tu 290 ra pe 280 m te 270 75 DB 260 70 r o 250 65 do n 240 I 230 220 210 200 190 180 170 160 150 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature 30 20 10 20 25 30 35 40 45 50 55 60 65 70 DB( F) Outdoor ambient temperature OC244-16 100 110 DB( F) Oc244--1.qxd 7/16/2001 4:12 PM Page 17 4. STANDARD OPERATION DATA Models PLH18AK Refrigerant circuit Electrical circuit Item Indoor side PLH36AK PLH42AK Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating Voltage V 208/230 208/230 208/230 208/230 208/230 208/230 208/230 208/230 208/230 208/230 Frequency Hz Total input kW 1.75 1.59 2.57 2.51 3.17 3.04 3.63 3.45 3.98 3.82 Indoor fan current A 0.7 0.7 1.2 1.2 1.2 1.2 1.4 1.4 1.4 1.4 Booster heater current A Outdoor fan current A 0.75 0.75 Comp. current A 7.5/7.0 6.5/6.3 9.9/9.1 9.5/8.8 12.8/12.1 12.2/11.6 14.5/13.4 Condensing pressure psi·G 246 218 240 228 239 223 Suction pressure psi·G 76 57 83 62 77 Discharge temperature ˚F 192 150 170 155 Condensing temperature ˚F 116 107 114 Suction temperature ˚F 70 34 Comp.shell bottom temperature ˚F 189 145 Ref. pipe length ft Intake air temperature Outdoor side PLH30AK Unit Refrigerant charge Discharge air temperature 60 60 7.7/8.3 60 7.7/8.3 60 9.1/10.4 60 11.1/12.2 0.65+0.65 0.65+0.65 0.75+0.75 0.75+0.75 0.75+0.75 0.75+0.75 11.1/12.2 0.8+0.8 0.8+0.8 13.6/12.8 16.5/15.6 16.1/14.9 240 233 257 242 58 81 59 76 57 162 155 166 163 164 153 112 114 109 114 112 119 115 53 36 49 34 51 35 46 32 156 135 152 142 155 147 110 76 25 25 25 25 25 5 lbs 8 oz 9 lbs 15 oz 10 lbs 2 oz 10 lbs 9 oz 11 lbs 0 oz DB ˚F 80 70 80 70 80 70 80 70 80 70 WB ˚F 67 60 67 60 67 60 67 60 67 60 DB ˚F 60 96 59 96 59 101 57 106 54 112 WB ˚F 59 58 58 56 54 Fan speed r.p.m. 530 640 690 790 790 Airflow (High) CFM 710 990 1,060 1,060 1,060 Intake air temperature DB ˚F WB ˚F 95 47 95 47 43 95 47 43 95 47 43 95 47 43 43 Fan speed upper/lower r.p.m. 790 750/750 760/760 760/760 840/840 Airflow CFM 1,590 3,170 3,350 3,350 3,530 Capacity SHF PLH24AK Btu/h 18,000 0.81 19,000 24,000 26,000 0.81 OC244-17 30,000 0.77 33,000 35,400 0.74 38,000 42,000 0.69 44,300 Oc244--1.qxd 7/16/2001 4:12 PM Page 18 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 0 — 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) PLH18AK 710 13.1 19 PLH24AK 990 16.1 24 PLH30AK 1,060 17.1 26 PLH36AK 1,060 21.7 29 PLH42AK 1,060 21.7 29 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 (R22(oz)) 25ft 40ft 55ft 70ft 85ft 100ft 115ft 130ft 150ft 164ft PLH18AK Outdoor unit precharged (up to 100ft) 5 lbs 8 oz 0 0 0 0 0 0 2 4 — — PLH24AK 9 lbs 15 oz 0 0 0 0 0 0 2 4 7 9 PLH30AK 10 lbs 2 oz 0 0 0 0 0 0 5 10 16 20 PLH36AK 10 lbs 9 oz 0 0 0 0 0 0 5 10 16 20 PLH42AK 12 lbs 9 oz 0 0 0 0 0 0 5 10 16 20 Model Refrigerant piping length (one way) OC244-18 Oc244--1.qxd 7/16/2001 4:12 PM Page 19 7. NOISE CRITERION CURVES PLH18AK NOTCH SPL(dB) Hi 37 Lo 31 LINE PLH24AK 80 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 20 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-20 10 63 125 250 500 1000 2000 4000 80 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 20 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE PLH30AK 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz NOTCH SPL(dB) Hi 43 Lo 35 LINE PLH36,42AK 90 NOTCH SPL(dB) Hi 45 Lo 37 LINE 90 80 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-20 OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR NC-20 10 8000 BAND CENTER FREQUENCIES, Hz 20 LINE 90 OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR 90 NOTCH SPL(dB) Hi 41 Lo 33 10 80 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 20 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-20 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz 63 125 250 500 1000 2000 BAND CENTER FREQUENCIES, Hz OC244-19 4000 8000 Oc244--1.qxd 7/16/2001 4:12 PM Page 20 UNIT Ambient temperature 80˚F CEILING Test conditions are based on JIS Z8731 5ft MICROPHONE OC244-20 Oc244--1.qxd 7/16/2001 5 4:12 PM Page 21 OUTLINES AND DIMENSIONS Unit : inch 1. INDOOR UNIT PLH18AK , PLH24AK , PLH30AK , PLH36AK , PLH42AK Ceiling hole 33-7/8~35-13/16 13/16~1-3/4 Branch duct hole 13/16~1-3/4 Terminal block 5/8 7-3/4 6-1/4 120_ 33-1/16 120_ {3-15/16 (Cut out hole) Suspension bolt M10 or W3/8 Feeding hole (Drain pump) 11-1/4 14-3/4 2-3/8 1 Drain pipe VP-25connection (O.D.{1-1/4) 2-{1-1/6 Ceiling surface Control wire entry A B 5-5/16 Ceiling surface 11/16~7/8 1-3/16 Power line entry Suspension bolt lower edge 7-1/2 4-1/8 5-1/2 1-15/16~ 2-3/4 6-11/16 2 High efficiency filter & Fresh air intake casement (option) 11/16~7/8 22-11/16 Air intake hole Air intake grille Grille Drain hole M M Emergency operation switch (cooling) Emergency operation switch (heating) Auto vane 22-11/16 Air intake hole (WIRELESS PANEL) 16-3/6 Air outlet hole A 37-3/8 DEFROST/STAND BY lamp M Operation lamp 3-1/16 Receiver M 16-3/16 Air outlet hole 37-3/8 2 6-1/4 13/16~1-3/4 3 - {1/8 Burring hole {4-15/16 6-1/4 C 3-1/2 Deteil drawing of fresh air intake 3-7/8 7-9/16 {5-7/8 33-7/8~35-13/16 Ceiling hole 6-9/16 14 - {1/8 Burring hole Suspension bolt pitch 23-13/16 {6-7/8 6-1/4 5-1/8 6-1/4 33-1/16 13-3/4 13/16~1-3/4 31-7/8 Suspension bolt pitch Fresh air intake 6-1/8 70_ 3-15/16 3-9/16 3-15/16 3-15/16 3-9/16 Branch duct hole (Cut out hole) 1 Models 2 PLH24AK Refrigerant pipe Refrigerant pipe flared connection flared connection 3/8F 5/8F PLH30AK PLH36AK PLH42AK Refrigerant pipe Refrigerant pipe flared connection flared connection 3/4F [42AK:7/8F] 1/2F PLH18AK OC244-21 Vane motor 2 3-1/16 A B C 9-1/2 10-3/16 3-1/8 11-1/16 11-3/4 3-5/16 Branch duct hole Oc244--1.qxd 7/16/2001 4:12 PM Page 22 Unit : inch 2.Remote controller 5-1/8 3/32 23/32 SWING TIMER OFF TIMER CLOCK AUTO AUTO CHECK SET TEMP. FAN START STOP SPEED FILTER CHECK MODE TEST RUN 4-3/4 AUTO RETURN 3/4 6 REFRIGERANT SYSTEM DIAGRAM PLH18AK Refrigerant pipe (option) {5/8" (with heat insulator) Flared connection Strainer Indoor coil thermistor RT2 Refrigerant pipe (option) {3/8" (with heat insulator) Flared connection Restrictor valve Distributor Capillary tube ({0.126x{0.063x14.2) PLH24AK Refrigerant pipe (option) {5/8" (with heat insulator) Flared connection Strainer Indoor coil thermistor RT2 Refrigerant pipe (option) {3/8" (with heat insulator) Flared connection Restrictor valve Distributor Capillary tube ({0.126x{0.071x11.8) PLH30/36/42AK Refrigerant pipe (option) {3/4"<PLH30/36AK> {7/8"<PLH42AK> (with heat insulator) Flared connection Strainer Indoor coil thermistor RT2 Refrigerant pipe (option) {1/2" (with heat insulator) Flared connection Restrictor valve Distributor Capillary tube PLH30AK ({0.157x{0.094x21.7) PLH36AK ({0.157x{0.079x9.8) PLH42AK ({0.157x{0.094x19.7) OC244-22 HEATING COOLING Oc244--1.qxd 7/16/2001 7 4:12 PM Page 23 WIRING DIAGRAM 123 C (AC208~230V) (DC13.1V) P.B CN2S (WHT) CNSK(RED) TRANS 3 2 1 BZ OFF ON 87654321 24AK 30AK 36AK 42AK LEGEND SYMBOL P.B I.B CN2L CN51 FC SW1 SW2 SW3 SW5 SW6 SW7 SW8 SW9 X1 X4 F1,F2 ZNR LED1 LED2 RED BLU BLK WHT RED RED SW7 123 123 123 123 123 CN24 (YLW) 12 18,24AK 26H YLW YLW 6 GRY RU 5 SW1 SW2 A01 8 88H1 7 HEATER B02 TB6 CN24 (YLW) CN1 12 SW17 5 4 3 2 1 CN2 OFF ON 321 TB5 87654321 2 TRANSMISSION WIRES DC12V 1 3 2 1 TRANSMISSION WIRES DC12V TB4 YLW YLW MODELS HEATER BLK WHT R.B SW18 POWER 1 3 POWER 1 2 1 3 CNDK CND CN2D VANE (RED) (WHT) (WHT) CN6V (WHT) F1 F2 X4 WIRELESS 9 LED1 LED2 CN90 FC (WHT) ZNR X4 X1 X1 4 SW9 SW3 CENTRALLY REMOCON 3 REMOCON BLU CONTROL POWER ON CN22 2 ON CN40 2 CN51 OFF (BLU) 1 BLU OFF (WHT) 1 12345 12 OUT BRN SW2 SW5 SW8 SW1 SW6 SW7 HEATER DRAIN PIPE INTAKE CN31 CN24 CN21 CN20 LOSSNAY DOOR 3 ORN ON ON ON (WHT) (WHT) (RED) (YLW) CN2L CN30 2 OFF OFF OFF (BLU) 1 YLW 123456 12345678910 1234 123 1 2 1 2 3 1 2 123456 1234 12 CNC (ORN) (BLU) fig:*1 MODELS LED2 LED1 5 D.U.M 1 3 D.HEATER 1 3 CNP (WHT) 18AK W.B CNB FAN 1 3 5 POWER SUPPLY ~(1PHASE) AC208/230V 60Hz L1 L2 GR GROUND 2 1 DP RED WHT BLK I.B F3 1 2 3 6 7 4 8 9 5 10 TB2 RED BLU GRN/YLW YLW YLW 123 RED RED RED RED MF See fig:*2 YLW YLW H2 GRILLE MV MV MV MV 5 5 5 5 5 RED RED MODELS: PLH18/24/30/36/42AK WIRING DIAGRAM 30,36,42AK 26H YLW YLW 6 GRY 5 GRY 3 2 1 8 7 88H2 YLW 8 88H1 7 TB3 OUTDOOR UNIT ON OFF See fig:*1 DS ON OFF ON OFF RT2 RT1 18,24AK MODELS H1 FS2 FS1 RED 30,36,42AK 1 RED 5 WHT 2 BLU 6 fig:*2 RED 4 BLU RED BLU GRN/YLW ON OFF H1 88H1 3 TB2 L1 L2 GR FS2 FS1 RED WHT 1 RED 2 BLU 88H1 5 5 3 RED 3 BLU 88H2 RED BLU GRN/YLW TB2 L1 L2 GR ON OFF NAME INDOOR POWER BOARD INDOOR CONTROLLER BOARD CONNECTOR(LOSSNAY) CONNECTOR(CENTRALLY CONTROL) FAN PHASE CONTROL SWITCH(FUNCTION SELECTOR) SWITCH(ADDRESS SELECTOR) SWITCH(EMERGENCY OPERATION) SWITCH(MODEL SELECTOR) SWITCH(TWIN/TRIPLE SELECTOR) SWITCH(MODEL SELECTOR) SWITCH(OPTION) SWITCH(MODEL SELECTOR) RELAY(DRAIN PUMP) RELAY(FAN MOTOR) FUSE(6A/250V) VARISTOR LED(DC12V POWER) LED(DC5V POWER) SYMBOL NAME C CAPACITOR(FAN MOTOR) MF FAN MOTOR MV VANE MOTOR DP DRAIN-UP MACHINE DS DRAIN SENSOR F3 FUSE(0.16A/250V) H2 DEW PREVENTION HEATER TB2~TB6 TERMINAL BLOCK RT1 ROOM TEMP.THERMISTOR (32-F/15k',77-F/5.4k' DETECT) RT2 PIPE TEMP.THERMISTOR/LIQUID (32-F/15k',77-F/5.4k' DETECT) R.B REMOTE CONTROLLER BOARD CN1 CONNECTOR(PROGRAM TIMER) CN2 CONNECTOR(REMOTE SWITCH) SW17 SWITCH(ADDRESS SELECTOR) SW18 SWITCH(FUNCTION SELECTOR) SYMBOL W.B RU BZ LED1 LED2 SW1 SW2 HEATER FS1 FS2 H1 26H 88H1,2 NAME WIRELESS REMOTE CONTROLLER BOARD RECEIVING UNIT BUZZER LED(RUN INDICATOR) LED(HOT ADJUST) SWITCH(HEATING ON/OFF) SWITCH(COOLING ON/OFF) THERMAL FUSE(162-F,16A) THERMAL FUSE(219-F,16A) HEATER HEATER THERMAL SWITCH HEATER CONTACTOR NOTE : If the drain water lift-up mechanism is identified to be defective with the microcomputer doctor during cooling,do not use emergency operation (It causes drain overflow). NOTES: 1.Since the indoor fan motor(MF)is connected with 230V power,if 208V power is used,change the dip switch(SW8)on the indoor controller board as shown in fig:*3. SW8 SW8 fig:*3 ON ON OFF Indoor fan motor(MF)for 208V. OFF 123456 123456 2.Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing. 3.Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers. 4.Symbols used in wiring diagram above are, :Connector, :Terminal block. 5.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 a continuous run with the 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 are outdoor unit side circuit breaker,then indoor unit side circuit breaker. (3)During emergency operation indoor fan runs at high speed but auto-vane does not work. (4)Thermostat will not function.Cold air blows out for defrosting during heating thus do not operate defrosting for a long time. (5)Emergency cooling should be limited to 10 hours maximum (the indoor unit heat exchanger may freeze). (6)After every emergency operation,set all dip switches(SW3<I.B>) to OFF. (7)Movement of the vanes does not work in emergency operation,therefore you have to slowly set them manually to the appropriate position. OC244-23 Oc244--1.qxd 8 7/16/2001 4:12 PM Page 24 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 YES YES Set time complete NO YES w 2 NO Trouble NO 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 NO w 4 w 6 Fan STOP 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 control and remote control can be operated. w2 The modes which indicate the sources of trouble are listed below. ● E0-Signal transmitting/receiving error ● P1-Room temperature thermistor malfunction ● P2-Indoor coil thermistor malfunction ● P4-Drain sensor malfunction ● P5-Drain overflow ● P6-Coil frost/overheat protection ● P7-System error ● P8-Outdoor unit trouble w3 The CHECK switch 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 dip switch setting. w7 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.) OC244-24 Oc244--1.qxd 7/16/2001 4:12 PM Page 25 COOLING OPERATION COOL operation Four-way valve/OFF NO Initial COOLING w8 YES Vane initial setting Vane 55 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 w9 Compressor thermostat ON YES NO Allowance cancel NO YES 3-minute time delay YES 6-minute time delay NO 3-minute compressor operation NO Allowance period NO NO w 10 YES 6 minute time delay Coil frost protection Allowance set YES YES Coil frost protection NO w 11 NO Cooling area YES NO 10-minute compressor operation Indoor coil temperature is 50˚F or higher YES YES Defrosting protection detection temperature 30˚F or lower NO YES 16-minute compressor operation 6-minute time delay YES Indoor pipe temperature is 34˚F or lower NO Compressor ON 1 min continue FAN speed LOW FAN speed LOW 5 min elapse NO NO NO NO YES YES Allowance cancel Coil frost prevention NO 3-minute time delay YES Outdoor unit trouble YES Coil frost prevention 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 5°F or below for 3 minutes, the compressor will stop for 6 minutes. w11Heating area : Indoor coil temperature is more than 9 degrees above the room temperature. Cooling 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. OC244-25 Oc244--1.qxd 7/16/2001 4:12 PM Page 26 DRY OPERATION DRY operation Four-way valve / OFF NO Initial dry operation w8 YES Vane setting notch Vane initial setting YES w12 Room temperature 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 w13 10-minute compressor OFF timer start Compressor ON time set Compressor OFF Compressor ON w14 Fan STOP w14 Fan speed LOW 1 w8—9 Refer to page OC244-25. w12 When room temperature is 64°F or below, the compressor cannot operate. When room temperature rises over 64°F the compressor starts after a 3-minute time delay. w13 Compressor ON time is decided by room temperature. Refer to page OC244-32. w14 In dry operation, compressor ON makes the fan speed LOW. Also, when the compressor OFF and the pipe temperature is 79°F or less, the fan stops, or when the compressor OFF and the pipe temperature is below 43°F the fan speed changes to LOW mode. It is not possible to set the fan speed with the remote controller OC244-26 Oc244--1.qxd 7/16/2001 4:12 PM Page 27 HEATING OPERATION A Heat operation NO initial HEATING w 11 Heating area w 15 YES 3-minute Auxiliary heater OFF NO Vane initial setting Vane setting notch YES NO Indoor coil thermistor is 140-F or higher NO 2 YES YES defrosting YES Defrost release Defrost 30 min. elapse FAN speed Low notch NO 1 Airflow 10% up YES NO B YES YES NO 10-minute compressor operation YES NO YES Compressor thermostat ON w9 NO B HOT adjust 5 min. elapse YES NO 3 min.restart prevention w 11 NO YES Auxiliary heater ON A NO YES NO NO FAN STOP w 11 Indoor piping 140-F or higher Auxiliary heater ON FAN SPEED Low FAN SPEED Low 2 min. elapse YES YES YES Fan area 20 min.elaspe 2 Auxiliary heater thermostat ON YES NO 6 min. restart prevention Indoor piping 5-F or lower YES Heating area NO FAN SPEED setting notch Auxiliary heater OFF NO Outdoor unit trouble Hot adjust start FAN SPEED very low FAN SPEED Very low airflow YES w 11 Fan area Heating area w 10 Hot adjust release Overheat remote START Outdoor unit trouble NO NO Fan area Cooling area Compressor ON NO Indoor Coil. temp. 150-F or higher YES YES Defrost operation START Compressor OFF Allowance period Four-way valve OFF YES Overload protect NO 6-minute restart prevention Allowance set 1 Compressor OFF AUTOMATIC COOLING/HEATING OPERATION Auto COOL/HEAT operation w 16 NO 1 Initial mode YES w 17 NO T1 > = To YES HEAT mode COOL mode COOL mode NO YES NO NO T1 [ (To - 4) T1 ] (To + 4) YES YES After 15min. T1 [ (To-4) After 15min. T1 ] (To + 4) YES YES NO NO COOL operation NO YES YES YES Indoor piping 95-F or higher NO Indoor piping 131-F or lower Allowance cancel Allowance cancel NO NO YES Four-way valve ON Compressor ON NO YES Outdoor unit trouble Hot adjust in process NO HEAT operation HEAT operation Cool mode set 1 1 w15 ( i ) Until Low airflow is set while in hot adjustment ( ii )While defrosting (FAN STOP) (iii)When thermostat is OFF In the case of( i ), (ii) and (iii) 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 OC244-27 NO FAN setting notch Oc244--1.qxd 9 7/16/2001 4:12 PM Page 28 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) Remote controller board ● Processes and transmits orders. SWING TIMER OFF TIMER OUTPUT to indoor unit CLOCK AUTO AUTO FAN START STOP SPEED FILTER AUTO RETURN CHECK MODE TEST RUN Non-polar, two-wire cable maximum length 550 yards 12VDC ● Room temperature thermistor (RT1) ● Indoor coil thermistor (RT2) ● Drain sensor Remote controller ● LCD indicator CHECK SET TEMP. Indoor unit INPUT from indoor unit OUTPUT to remote controller Signal Indoor controller board ● 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 dip switch on indoor controller board. ● Transmits the power to remote controller. Auto vane’s angle setting. Booster heater ON-OFF Control. Drain pump : ON-OFF. Emergency stop. Independent Control of Outdoor Unit ● Compressor protection device working ● Defrosting START-STOP ● Fan speed control. ● Crankcase heater control ON-OFF. ● Self diagnostic function Polar three-wire cable Outdoor unit 12VDC ● ● ● ● 1 2 3 OC244-28 OUTPUT to outdoor unit 1 2 3 ● Compressor and outdoor fan : ONOFF. ● Operation mode change :COOLHEAT. Oc244--1.qxd 7/16/2001 4:12 PM Page 29 2. INDOOR UNIT CONTROL 2-1 COOL operation <How to operate> 1 Press POWER ON/OFF button. 2 Press the MODE button to display COOL. 3 Press the SET TEMP. button to set the desired temperature. NOTE: Set temperature changes 2°F when the SET TEMP. button is pressed one time. Cooling 65 to 87°F. SWING TIMER OFF TIMER CLOCK AUTO AUTO CHECK SET TEMP. FAN START STOP SPEED FILTER AUTO RETURN CHECK MODE TEST RUN <COOL operation time chart> Operation starts by POWER button ON. Room temperature becomes equal to set temperature. Room temperature rises above set temperature. Operation stops by POWER button OFF. ON Thermostat OFF ON Indoor fan OFF Auto vane OFF LOW or HIGH LOW or HIGH ON 3 minutes ON Drain pump OFF Booster heater OFF Compressor OFF ON OFF ON Minimum 3 minutes w1 w1 Even if the room temperature rise above the set temperature during this period, the compressor will not start until this period has ended. (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 room temperature is higher than set temperature. The compressor stops when room temperature is equal to or lower than the set temperature. The compressor maintains the previous state when the room temperature minus the set temperature is 0 degrees or more, or lower than 2 degrees. 3 The compressor stops in check mode or during protective functions. 4 Coil frost prevention To 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 in a 3-minute(w2) time delay. w2 When the indoor coil temperature is 30°F or less, the compressor starts in 6 minutes. NOTE : By turning OFF the dip switch SW1-3 on indoor controller board, the start temperature of coil frost prevention changes from 34°F to 36°F. OC244-29 Oc244--1.qxd 7/16/2001 4:12 PM Page 30 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. lf 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“P6”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. ( 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) NOTE : Fan stops immediately if the unit stops or the check mode is started. (3) Auto vane control Auto vane position is set to 30degrees airflow at the start-up of COOL operation. (a) Vane position set mode & swing mode. ( i ) Every time AIR DISCHARGE button is pressed, setting will be changed . ( ii ) Airflow direction can be changed with AIR DISCHARGE button. 1 Fan speed : LOW 30° 55° 70° SWING 55° 70° SWING 2 Fan speed : HIGH 30° 45° <VANE POSITION> 1 Fan speed : LOW 30 2 Fan speed : HIGH 55 70 30 45 55 70 AUTO RETURN When 55 degrees or 70 degrees airflow is selected with the LOW fan speed in COOL operation, “AUTO RETURN” will appear right side of the air direction display. One hour later, the airflow direction returns to 30 degrees automatically and “AUTO RETURN” will disappear. If the airflow direction is set to 30 degrees during “AUTO RETURN” indication, the time counting for AUTO RETURN is cancelled. OC244-30 Oc244--2.qxd 7/16/2001 4:13 PM Page 31 (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 controller. RANGE A : Indoor coil temperature is more than 9 degrees above room temperature. RANGE B : Indoor coil temperature is within 9 degrees either way of room temperature. RANGE C : Indoor coil temperature is more than 9 degrees below room temperature. Indoor coil temperature minus room temperature (degree) +9 RANGE A 0 RANGE B -9 RANGE C (5) Drain pump control The drain pump works in COOL or DRY operation. When operation stops or changes to HEAT mode, the drain pump continues to operate for 3 more minutes. The drain pump does not work in check mode. <Drain sensor> When both the drain pump and unit are operating, the drain sensor detects the temperature. This temperature tells whether the drain water level is above or under the drain sensor. If the drain water level rises above the drain sensor due to a drain pump malfunction, the unit will stop operating in order to prevent drain from overflowing. The check code “P5” on the remote controller will display this occurrence. (6) Dew prevention heater To prevent dew from accumulating on the grille, the dew prevention heater is continuously ON during COOL operation. It is independent of the thermostat ON/OFF. OC244-31 Oc244--2.qxd 7/16/2001 4:13 PM Page 32 2-2 DRY operation <How to operate> 1 Press POWER ON/OFF button. 2 Press the MODE button to display “DRY” 3 Press the SET TEMP. button to set the desired temperature. NOTE: The set temperature changes 2°F when the SET TEMP. button is pressed one time. Dry 65 to 87°F SWING TIMER OFF TIMER CLOCK AUTO AUTO CHECK SET TEMP. FAN START STOP SPEED FILTER AUTO RETURN CHECK MODE TEST RUN <DRY operation time chart> Operation starts by POWER button ON. Room temperature becomes equal to set temperature. Room temperature rises above set temperature. Operation stops by POWER button OFF. ON Thermostat OFF DRY MODE DRY MODE ON Indoor fan OFF ON Auto vane OFF 3 minutes Drain pump ON OFF ON Booster heater OFF OFF ON Compressor OFF Minimum 3 minutes w1 w1 Even if the room temperature rises above the set temperature during this period, the compressor will not start until this period has ended. (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 room temperature is higher than set temperature. The compressor stops when room temperature is equal to or lower than the set temperature. The compressor maintains the previous state when the room temperature minus the set temperature is 0°F or more, or lower than 2°F. 3 The compressor stops in check mode or during protective functions. OC244-32 Oc244--2.qxd 7/16/2001 4:13 PM Page 33 4The compressor will not start when the room temperature is 64°F or below. 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 Coil frost protection in DRY operation is the same as in COOL operation. 6Coil frost prevention Coil 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 fan runs on LOW speed when the pipe temperature is 43°F or more, or the compressor is OFF and the pipe temperature is below 43°F. (a)During compressor OFF ● When the indoor coil temperature is 43°F or above, the indoor fan will stop. ● When the indoor coil temperature is below 43°F, the indoor fan will run on LOW speed. (b)During compressor ON ● The indoor fan runs on LOW speed. <Dry mode> The fan notch is controlled by the indoor coil temperature every 30 seconds. Fan control in DRY operation. Pipe temp. Fan 43-F or more STOP Below 43-F LOW All LOW Compressor OFF Compressor ON (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. OC244-33 Oc244--2.qxd 7/16/2001 4:13 PM Page 34 2-3 HEAT operation <How to operate> 1 Press POWER ON/OFF button. 2 Press the MODE button to display “HEAT” 3 Press the SET TEMP. button to set the desired temperature. NOTE: The set temperature changes 2°F when the SET TEMP. button is pressed one time. Heating 63 to 83°F. <Display in HEAT operation> SWING TIMER OFF TIMER CLOCK AUTO AUTO CHECK SET TEMP. FAN START STOP SPEED FILTER AUTO RETURN CHECK MODE TEST RUN [DEFROST] The [DEFROST] symbol is only displayed during the defrost operation. [STANDBY] The [STANDBY] symbol is only displayed from the time the heating operation starts until the heated air begins to blow. <HEAT operation time chart> Operation starts by POWER button ON. Room temperature falls below set temperature. Room temperature becomes equal to set temperature. Operation stops by POWER button OFF. ON Thermostat OFF Extra LOW ON Indoor fan LOW Extra LOW w1 LOW or HIGH LOW or HIGH OFF ON Auto vane 1 Horizontal Depends on remote controller setting Horizontal w1 Changeable Extra LOW or LOW by indoor dip switch SW1- 5 and SW1- 6 . Depends on remote controller setting OFF ON Drain pump OFF OFF ON Booster heater OFF Hot adjustment Hot adjustment OFF during thermostat OFF hot adjustment defrosting ON Compressor OFF Minimum 3 minutes w2 ON Power ON lamp OFF ON STAND BY lamp From POWER ON until warm begins to blow OFF w2 Even if the room temperature falls below the set temperature during this period, the compressor will not start until this period has ended. OC244-34 Oc244--2.qxd 7/16/2001 4:13 PM Page 35 (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 is lower than the set temperature. The compressor stops when the room temperature 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) Normal control ( i )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 dip switch SW1-5 and SW1-6. If the indoor coil temperature becomes more than 5 degrees below the room temperature during the thermostat OFF, the indoor fan will stop. After, when the indoor coil temperature becomes within 5 degrees of room temperature, the indoor fan will run on EXTRA-LOW speed. ( ii )Hot adjustment Hot adjustment is a warm-up for HEAT operation <Start conditions> The hot adjustment works under any of the following 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. 2 minutes later, the hot adjustment ends. Then, the fan speed depends on the remote controller setting. (iii)The indoor fan stops when the indoor coil temperature is within 9 degrees either way of room temperature. (iv)To eliminate the remaining heat, the indoor fan runs for the first 1 minute after the booster heater is turned OFF. (3) Auto vane control Auto vane position is set to 70 degrees airflow at the start-up of HEAT operation. (a) Vane position set mode & swing mode. ( i ) Every time AIR DISCHARGE button is pressed, setting will be changed . ( ii ) Airflow direction can be changed with AIR DISCHARGE button. 30° 45° 55° 70° SWING NOTE : In the following cases, the discharge direction is 30° 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 6 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. OC244-35 Oc244--2.qxd 7/16/2001 4:13 PM Page 36 (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. ( i ) During compressor ON while hot adjustment is set. 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 starts, 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. 3 Within 20 minutes after entering RANGE C, if the temperature difference does not return to RANGE B,the outdoor unit is deemed abnormal. 4 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. ( ii ) During compressor ON in defrosting 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. When RANGE B does not change to RANGE A after 20 minutes have passed since RANGE C had outdoor unit is determined to be abnormal. ( iii ) During compressor OFF Not detecting abnormalities. (6) Indoor coil temperature 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 temperature. RANGE B : Indoor coil temperature is within 9 degrees either way of room temperature. RANGE C : Indoor coil temperature is more than 9 degrees below room temperature Indoor coil temperature minus room temperature (degree) +9 RANGE A 0 RANGE B -9 RANGE C OC244-36 Oc244--2.qxd 7/16/2001 4:13 PM Page 37 2-4 AUTO operation (Automatic COOL/HEAT change over operation) <How to operate> 1 Press POWER ON/OFF button. 2 Press the MODE button to display “AUTO” 3 Press the SET TEMP. button to set the desired temperature. NOTE: The set temperature changes 2°F when the SET TEMP. button is pressed one time. Automatic 65 to 83°F. ●“AUTOMATIC” works to change by itself the operation mode either to cooling or heating according to the room temperature. SWING TIMER OFF TIMER CHECK SET TEMP. CLOCK AUTO AUTO FAN START STOP SPEED FILTER AUTO RETURN CHECK MODE TEST RUN (1) Initial mode 1 When AUTO operation starts after unit OFF. ● If the room temperature is higher than the set temperature, operation starts in COOL mode. ● If the room temperature 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 4 degrees above the set temperature. 2 COOL mode changes to HEAT mode when 15 minutes have passed since the room temperature became 4 degrees below the set temperature. To:Set temperature (65~83-F) (degree) When room temperature becomes 4 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 COOL mode HEAT mode Compressor Mode change (COOL HEAT) 15 minutes Start HEAT mode ON OFF Minimum 3 minutes (3) Temperature range AUTO operation is available under the outside air temperatures as follows. 10 0 0-F 20 30 40 50 70 80 COOLING * 17-F * 60 HEATING In case of the wind baffle installed. OC244-37 90 100 110 120 (-F) 115-F 75-F Oc244--2.qxd 7/16/2001 4:13 PM Page 38 2-5 Auto vane control <How to operate> To change the air flow direction, press AIR DISCHARGE button. SWING TIMER OFF TIMER CHECK SET TEMP. CLOCK AUTO AUTO FAN START STOP SPEED FILTER AUTO RETURN CHECK MODE TEST RUN 1 30° 2 45° 3 55° 4 70° 5 SWING 1 30- 2 45- downward 3 55- downward Available in COOL operation with fan speed on HIGH or in HEAT operation. Unavailable in DRY operation. If fan speed changes from HIGH to LOW during 45° downward airflow in COOL mode, the direction automatically changes to 30°. 4 70- downward 5 swing Changes by pressing the AIR DISCHARGE button. (1) COOL/DRY operation At the start-up of COOL or DRY operation, the airflow direction in automatically set to 30°. After, it can be changed to another direction with AIR DISCHARGE button on the remote controller. <Auto return> When 55° or 70° airflow is set with fan speed in LOW, “AUTO RETURN” appears right side of the air direction. One hour later the direction changes to 30 degrees, automatically and “AUTO RETURN” disappears. (2) HEAT operation At the start-up of HEAT operation, airflow direction depends on the setting of the last operation. After, it can be changed to another direction with AIR DISCHARGE button. The airflow direction shifts to 30° regardless of the remote controller settings under any of the following conditions. ● Thermostat OFF ● Defrosting ● Indoor fan speed EXTRA-LOW in hot adjustment OC244-38 Oc244--2.qxd 7/16/2001 4:13 PM Page 39 2-6 TIMER operation WIRED REMOTE CONTROLLER SWING TIMER OFF TIMER CLOCK AUTO AUTO CHECK SET TEMP. FAN START STOP SPEED FILTER AUTO RETURN CHECK MODE TEST RUN <Timer function> AUTO STOP ··········The air conditioner stops after the set time lapses. AUTO START ········The air conditioner starts after the set time lapses. AUTO OFF ············Timer is not active. <How to operate> 1. Press POWER ON/OFF button. 2. Press “TIMER ON/OFF” button to select AUTO STOP or AUTO START. 3. Press “CLOCK/TIMER” button to set desired time. Time setting is in 1 hour units for up to 24 hours. Each time TIMER SET button is pressed, set time increases by 1 hour. When TIMER SET 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 This setting will stop the operation in 8hours. With the lapse of time, time display changes in 1hour 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 measure to check the resistance between the power supply terminal block and ground to make sure that it is at least 1.0M". Attention: ". Do not use the air conditioner if resistance is less than 1.0M" SWING F COOL FAN SPEED MODE AUTO RETURN TIMER ON/OFF CLOCK/TIMER FAN SPEED AIR DISCHARGE FILTER AIR SWEEP SET TEMP. TIMER SET CHECK TEST RUN REMOTE CONTROLLER PAR-JH240KUS <How to operate> 1. Turn ON main breaker. 2. Press TEST RUN button twice. “TEST RUN” is displayed on remote controller. 3. Select “COOL” with MODE button to check that cool air is beginning discharged. Select “HEAT” with MODE button to check that warm air is beginning discharged.(after a while) 4. Select LOW/HIGH with FAN SPEED button to check that the fan speed changes properly. 5. Press AIR DISCHARGE button to check auto vane operation. 6. Check outdoor fan operation. 7. Check compressor operation referring to the indoor coil temperature code displayed on the remote controller. 8. After checking, press the ON/OFF button. TEST RUN button Displayed during test run ·The test run works for 2 hours and stops automatically. To cancel the test run, press ON / OFF button or TIMER ON / OFF button. OC244-39 Oc244--2.qxd 7/16/2001 4:13 PM Page 40 (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 1 Indoor coil temperature ~34(36)°F 2 3 4 5 6 7 8 36(37)°F~50°F ~59°F ~68°F ~77°F ~86°F ~95°F ~104°F Code 9 10 11 12 13 14 15 Indoor coil temperature ~113°F ~122°F ~131°F ~140°F ~158°F ~191°F 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 dip switch 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 dip switch SW3-1 to ON and SW3-2 to OFF. For emergency heating, set the dip switch SW3-1,2 to ON. Emergency cooling 1 1 ON 2 Emergency heating 1 2 1.2 ON Normal operation 1 2 SW3 1.2 OFF Indoor controller board 2. Turn ON the outdoor unit breaker and then ON the indoor unit breaker. Emergency operation will now start. 3. During emergency operation, the indoor fan operates on high speed, the auto vanes do not operate. 4. To stop emergency operation, turn OFF the indoor unit breaker. 5. Movements of the vanes do not work in emergency operation, therefore you have to slowly set them manually to the appropriate position. 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. OC244-40 Oc244--2.qxd 7/16/2001 4:13 PM Page 41 2-9 Dip switch 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 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 2. SW18(Function selector) 1 2 3 4 5 6 7 8 ON OFF SW18-1) Switch for timer OFF:Single day ON:timer every day SW18-2) Switch for filter sign OFF:filter sign absent ON:filter sign present SW18-3) Switch for filter sign time setting. OFF:100Hr ON:2500Hr SW18-4~8) Not yet used. (2). On indoor controller board 1. SW1 (Mode selector) 1 2 3 4 5 6 7 8 9 10 ON OFF SW1-1) Switch that changes between FAN mode and AUTO mode OFF:AUTO mode for models with heat pump ON:Fan mode for models without heat pump SW1-2) Switch for drain pump OFF:The drain pump works in COOL and DRY operation. ON:The drain pump works in both COOL and DRY and HEAT operation. SW1-3) Switch to change the temperature to start coil frost prevention OFF:34°F ON:36°F SW1-4) 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. Therefore,the room temperature read by room temperature thermistor must be lowered by 7 degrees. OFF:7-degree adjustment ON:NO adjustment SW1-5) Switch for fan speed during thermostat OFF in HEAT operation OFF:EXTRA LOW ON:LOW SW1-6) Switch for fan speed during thermostat OFF in HEAT operation OFF:EXTRA LOW or LOW(set with SW1-5) ON:LOW or HIGH(set with remote controller) SW1-7) Switch for detecting abnormalities in the outdoor unit abnormality detection OFF:When an abnormality occurs,it is detected. ON:Even if an abnormality occurs,it can not be detected. SW1-8) Switch for auto restart function OFF:This function does not work ON:This function works. SW1-9, 10) Not yet used. OC244-41 Oc244--2.qxd 7/16/2001 4:13 PM Page 42 2. SW2 (Address selector) 1 2 3 4 5 6 Used in setting the unit-address for group control. For further information,refer to page OC244-55. ON OFF 3. SW3 (Emergency operation switch) Normal operation For emergency cooling 1 2 For emergency heating 1 2 ON OFF ON OFF 1 2 ON OFF 4. SW5 (Model selector) 1 2 3 4 ON OFF SW5-1) Not yet used SW5-2) OFF:For models with heat pump ON: For models with cooling only SW5-3) OFF:Auto vane angle 30-→45-→55-→70ON: Auto vane angle 25-→40-→55-→70SW5-4) Fresh air intake OFF:Fresh air in not taken in ON: Fresh air is taken in 5. SW6 (Address selector) 1 2 3 4 ON OFF This switch is not available for series PLH. 6. SW7 (Model selector) Switch to set the output of phase-controlled indoor fan motor. Address setting is available at any time. The initial factory setting by is based on each capacity. Service Ref. SW7 PLH18AK ON OFF PLH24AK PLH30AK ON OFF 1 2 3 ON OFF ON OFF 1 2 3 PLH36AK 1 2 3 PLH42AK ON OFF 1 2 3 1 2 3 7. SW8 1 2 3 4 5 6 ON OFF SW8-1~2) Ceiling high type switch } See page OC244-49. SW8-3~4) Discharge direction selector SW8-5) Option selector OFF:Standard ON: When mounting the optional high efficiency filter. SW8-6) OFF:For 230V power supply ON: For 208V power supply 2-10. INDOOR FAN CONTROL Fan motor max. rotational frequency Service Ref. PLH18AK PLH24,30AK PLH36,42AK Voltage [V] 208/230 208/230 208/230 OC244-42 100% rotational frequency(rpm) 60Hz 600/650 710/790 760/830 Oc244--2.qxd 7/16/2001 10 4:13 PM Page 43 TROUBLESHOOTING 1.TROUBLES 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 “E0”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 E0 Display 2 Operating Display Operating Display 3 No Display E0 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) Wrong operation of remote controller due to noise wave emitted by other appliances. 1), 2) Check the wire 3) 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 power board. 6) Bad contact of CN2D. 7) Blown fuse. 8) Circuit breaker OFF. 1) Measure the voltage between terminals of remote controller. If no voltage, remove 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. OC244-43 Oc244--2.qxd 7/16/2001 4:13 PM Page 44 2. SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER (WIRED 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. (1) ON the set temperature display part, “CHECK” appears, and the unit CHECK mode address and the check code are displayed alternately at one-second intervals. (Check mode) Example Check code Unit address MODE TIMER ON/OFF CLOCK/TIMER FAN SPEED AIR DISCHARGE FILTER AIR SWEEP CHECK (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 ON/OFF button. In remote ON/OFF control, press the remote ON/OFF switch. In centralize control, turn OFF the ON/OFF button of centralize controller. SET TEMP. TIMER SET TEST RUN REMOTE CONTROLLER PAR-JH24KUS Check button NOTE: The latest check code is memorize, even if the check mode is cancelled by the way mentioned above. It takes 60 seconds maximum to display the memorize 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 MODE” 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 next page.) B. For group control using one remote controller (1) Pressing the CHECK button on the remote controller twice starts the self diagnostic function. (2) Press the SET TEMP. button or SET TEMP. button on the remote controller to advance or go back to the unit address. Each time SET TEMP. button is pressed, the unit address advances by one. Each time SET TEMP. button is pressed, the unit address goes back by one. The check code and the unit address, appear alternately. (3) The check code “U8” means no malfunction has occurred since installation. The check code “E0” 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. (4) Check and repair the unit according to the check code. (Refer to next page.) OC244-44 Oc244--2.qxd 7/16/2001 4:13 PM Page 45 Check Check points Diagnosis of malfunction Cause code E0 Signal transmitting/receiving During individual unit control 1) Check the transmission wire. error 1) Bad contact of transmission 2) Check with another remote controller. If “E0” 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) Check the transmission wire. 1) Bad contact of transmission 2) Check with another remote controller. wire If “P3” is still indicated, replace the indoor 2) Signal transmitting/receiving cirboard. cuit is abnormal. If other check code appears, replace the origi3) Wrong operation due to noise nal remote controller. wave emitted by other appli3) Short-circuit between 1 and 2 of CN40 and ances 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 1 - 3. 32°F ··6k" 59°F····3.2k" 86°F····1.8k" 41°F ··4.8k" 68°F····2.6k" 95°F····1.5k" 50°F ··3.9k" 77°F····2.2k" 104°F··1.3k" 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 drop of water is on.) If the resistance is normal, replace the indoor controller board. P6 Freezing protection/ overheating protection is working. 1) 2) 3) 4) 1) 2) 3) 4) P7 System error 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. P8 Abnormality in outdoor unit 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. Short cycle of air cycle Dirty air filter Damaged fan Abnormal refrigerant OC244-45 1) Check the thermistor. 2) Measure the resistance of the thermistor. Normal resistance should be as follows. 32°F····15k" 86°F ····4.3k" 50°F····9.6k" 104°F ····3.0k" 68°F····6.3k" If the resistance is normal, replace the indoor controller board. 1) 2) 3) 4) Clear obstructions from the air cycle. Clean the air filter Check the fan. Check the refrigerant temperature. Oc244--2.qxd 7/16/2001 4:14 PM Page 46 3. OTHER TROUBLES AND CAUSES Vanes do not work. Unit stops after 5 to 20 seconds operation Air discharge display is OFF and AIR DISCHARGE button does not operate. In this case, remote controller is normal. Power ON/OFF button is not available. Vane motor 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. Protection function is working. Refer to check code on remote controller display. See page OC244-45. Indoor controller board deems the auto vanes are not attached to the unit. Horizontal angle can not be detected. Beep sound is heard, but display is turned OFF. Beep sound is not heard, and display remains OFF. Indoor controller is damaged. Dip switch setting is wrong. Indoor controller is damaged. Vane motor is damaged. Auto vane is wired after power is turned to ON. Vane motor is damaged. Indoor/outdoor connecting wire is connected incorrectly. Indoor/outdoor connecting wire shorts. Compressor protector is damaged. Outdoor controller board is defective. Remote controller is damaged. Transmission wire is poorly connected “CENTRALLY CONTROLLED” is displayed. OC244-46 Transmission wire is damaged. Connector is poorly connected. Indoor terminal block is poorly connected. Remote controller terminal block is poorly connected. Oc244--2.qxd 7/16/2001 4:14 PM Page 47 4. How to check the parts PLH18AK/PLH24AK/PLH30AK/PLH36AK/PLH42AK Parts name Check points Room temperature thermistor (RT1) Liquid pipe thermistor (RT2) Vane motor Disconnect the connector then measure the resistance using a tester. (Surrounding temperature 50-F~86-F) Normal Abnormal 4.3k"~9.6k" Open or short (Refer to the thermistor) Measure the resistance between the terminals using a tester. (Surrounding temperature 68-F~86-F) White 4 Connector M Normal Abnormal 300" Open or short Red — Yellow Orange 2 Red — Blue Red 1 5 3 Blue Yellow Fan motor Red — Orange Red — White Measure the resistance between the terminals using a tester. Relay connector 1 Red 2 White 3 Black 1 2 3 Normal Motor terminal or Relay connector 18AK 24,30AK 36,42AK Red-Black 87.2" 32.6" 28.7" White-Black 104.1" 40.7" 41.6" Abnormal PLH Protector Drain pump Measure the resistance between the terminals using a tester. (Surrounding temperature 68-F~86-F) Yellow 1 Normal Abnormal 2 319" Open or short Yellow Drain sensor Measure the resistance between the terminals using a tester. (Surrounding temperature 50-F~86-F) 1 2 3 Normal Abnormal 0.6k"~6.0k" Open or short OC244-47 (Refer to the thermistor) Open or short Oc244--2.qxd 7/16/2001 4:14 PM Page 48 <Thermistor Characteristic graph> Thermistor for lower temperature < Thermistor for lower temperature > Room temperature thermistor(RT1) Liquid pipe thermistor(RT2) 50 Resistance (K") 40 Thermistor R0=15k' ± 3% Fixed number of B=3480k' ± 2% 30 20 Rt=15exp { 3480( 32°F 50°F 68°F 77°F 86°F 104°F 1 273+{(t-32)/1.8} 1 )} 273 10 15k' 9.6k' 6.3k' 5.2k' 4.3k' 3.0k' 0 Thermistor for drain sensor 10 -4 14 32 50 68 86 Temperature (-F) 104 122 < Thermistor for drain sensor > 9 Thermistor R0=6.0k' ±5% Fixed number of B=3390k' ±2% 8 Rt=6exp { 3390( 32°F 50°F 68°F 77°F 86°F 104°F 1 273+{(t-32)/1.8} Resistance (K") 7 1 )} 273 6.0k' 3.9k' 2.6k' 2.2k' 1.8k' 1.3k' 6 5 4 3 2 1 0 -4 OC244-48 32 68 104 140 Temperature (-F) 176 Oc244--2.qxd 7/16/2001 4:14 PM Page 49 4-WAY AIR FLOW SYSTEM 11 1. Placement of the air outlets • For this grille, the blowout direction comes in 11 patterns. Also, by setting the dip switches (SW8-3, SW8-4) on the indoor board to the appropriate settings, you can adjust the air flow and speed. Select the settings from Table according to the location in which you want to install the unit. 1) Decide on the pattern of the airflow direction. Blowout direction pattern <Table 1> 4-direction Pattern 1 Factory setting 3-direction Pattern 4 One air outlet fully closed 2-direction Pattern 6 Note1. For 3 and 2-directional, please use the air outlet shutter plate (option). Two air outlet fully closed 2) According to the number of air outlets and height of the ceiling to install the unit, be sure to set the up switches (SW8-3, SW8-4) on the indoor board to the appropriate setting. • Correspondence of ceiling heights to numbers of air outlets. Ceiling height & discharge direction (Unit : feet) High ceiling 1 High ceiling 2 Standard SW8-1 ON SW8-1,2 SW8-1 OFF SW8-1 ON SW8-2 OFF SW8-2 OFF SW8-2 ON SW8-3,4 SW8-3 OFF 4 direction SW8-4 OFF 8.9 9.8 11.5 3 direction SW8-3 ON 9.8 10.8 11.5 SW8-4 OFF 2 direction SW8-3 ON 10.8 11.5 — SW8-4 ON PLH18AK I.B PLH24, 30, 36, 42AK High ceiling 1 High ceiling 2 Standard SW8-1 ON SW8-1 ON SW8-1 OFF SW8-1,2 SW8-2 OFF SW8-2 OFF SW8-2 ON SW8-3,4 SW8-3 OFF 4 direction SW8-4 OFF 10.5 11.8 13.8 3 direction SW8-3 ON 11.8 13.1 13.8 SW8-4 OFF 2 direction SW8-3 ON 13.1 13.8 — SW8-4 ON SW8 2. Fresh air intake (Installation of site) • At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when required. Note : Be sure to add5-5/16inch to the dimensions in the diagram that are marked with a “w” if installing a multi function casement (Option) Fresh air intake hole Fresh air intake hole diagram 3 - {1/8 Burring hole {4-15/16 Burring hole pitch Refrigerant pipe Drain pipe OC244-49 120_ w6-1/4 120_ {3-15/16 (Cut out hole) Ceiling surface (Unit : inch) Oc244--2.qxd 7/16/2001 4:14 PM Page 50 3. Fresh air intake amount & static pressure characteristics l PLH18AK Multifunction casement + Standard filter Static pressure [in. W.G. Multifunction casement + High efficiency filter O10-2] Static pressure [in. W.G. O10-2] 20 50 100 150 50 200 -20 150 Air flow [CFM] 2 intakes -40 -60 -60 1 intake -80 1 intake -80 Taking air into the unit How to read curves Static pressure [in. W.G. O10-2] 1 20 Curve in the left graphs. 100 150 A 200 B 50 Q…Planned amount of fresh air intake <CFM> A…Static pressure loss of fresh air intake duct system with air flow <in.W.G.O10-2> amount Q B…Forced static pressure at air conditioner inlet with air flow amount Q <in.W.G.O10-2> C…Static pressure of booster fan with air flow amount Q <in.W.G.O10-2> D…Static pressure loss increase amount of fresh air intake duct system for air flow amount Q <in.W.G.O10-2> E…Static pressure of indoor unit with air flow amount Q <in.W.G.O10-2> Qa…Estimated amount of fresh air intake with out D <CFM> Duct characteristics at site 0 Air flow [CFM] Q -20 C A 2 E -40 -60 Q -80 A D 3 Q Qa 2 PLH24/30/36/42AK Multifunction casement + Standard filter Multifunction casement + High efficiency filter Static pressure [in. W.G. O10-2] tatic pressure [in. W.G. O10-2] 20 20 50 0 50 100 150 200 250 300 Air flow [CFM] -20 100 150 200 250 0 -60 -60 -80 -80 Taking air into the unit Static pressure [in. W.G. O10-2] 20 50 100 150 200 250 2 intakes -40 1 intake 300 Air flow [CFM] -20 -40 -60 -80 OC244-50 300 Air flow [CFM] -20 2 intakes -40 0 200 -20 2 intakes -40 0 100 0 Air flow [CFM] C 0 20 1 intake Oc244--2.qxd 7/16/2001 4:14 PM Page 51 4. Interlocking operation method with duct fan (Booster fan) ●Whenever the indoor unit is operating, the duct fun also operates. (1)Connect the optional multiple remote controller adapter(PAC-SA88HA-E)to the connector CN51 on the indoor controller board. (2)Drive the relay after connecting the 12V DC relay between the Yellow and Orange connector lines. Use a relay under 1W. MB: Electromagnetic switch power relay for duct fan. X: Auxiliary relay (12V DC LY-1F) ~ Be sure to secure insulation material by tape and such CN51 on indoor unit board 5 Green Yellow MB Orange 1 Connector (5P) Red Brown Package side Installation at site Multiplr remote controller adapter PAC-SA88HA-E Be sure to secure insulation material by tape and such Indoor controller board Distance between indoor controller board and relay must be within 10m. CN51 Multiple remote controller adapter PAC-SA88HA-E CN51 5. BRANCH DUCT(Installation at site) Discharge by branch duct becomes possible by installing a branch duce at site. Knockout holes on the wall panel of the indoor unit must be removed. Branch Duct Installation Procedure At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when required. Note : The figure marked with w in the drawing represent the dimensions of the main unit excluding those of the optional multi function casement. When installing the optional multi function casement, add 5-5/16 inch to the dimensions marked on the figure. When installing the branch ducts, be sure to insulate adequately. Otherwise condensation and dripping may occur. Figure 1. Branch duct mounting position Figure 2. Branch duct connection details Unit : (inch) Branch duct hole (Cut out hole) Branch duct hole w6-1/8 Branch duct hole {6-7/8 Burring hole pitch Refrigerant pipe Drain pipe OC244-51 13-3/4 14 - {1/8 Burring hole {5-7/8 Cut out hole w6-9/16 70_ 3-15/16 3-9/16 3-15/16 3-15/16 3-9/16 5-1/8 Branch duct hole diagram (view from either side) Fresh air intake hole Oc244--2.qxd 7/16/2001 4:14 PM Page 52 6. Air flow & Static pressure characteristics of Branch Duct (with SWA at “Standard”) 4 direction airflow (Horizontal vane) Rectangular duct PLH18AK Rounded duct PLH18AK 12 12 Static 8 pressure [in. W.G. O10-2] Static 8 pressure [in. W.G. O10-2] Hi 4 4 Hi Lo 0 50 Lo 100 150 0 200 50 100 Air flow [CFM] 150 200 Air flow [CFM] PLH24AK PLH24AK 20 20 16 Static pressure 12 -2 [in. W.G. O10 ] 16 Static pressure 12 [in. W.G. O10-2] 8 0 8 Hi 0 50 Hi 4 Lo 4 100 150 200 250 300 350 Lo 50 100 150 PLH30/36/42AK 20 16 Static pressure 12 [in. W.G. O10-2] 16 Static pressure 12 [in. W.G. O10-2] Hi 8 4 4 Lo 50 100 150 200 250 300 3 direction airflow (Horizontal vane) Rectangular duct PLH18AK 0 350 350 Lo 50 100 150 24 20 Static 12 pressure [in. W.G. O10-2] 16 Static 12 pressure [in. W.G. O10-2] Hi 250 300 Rounded duct PLH18AK 20 16 200 Hi 8 8 Lo 4 100 150 Lo 4 0 50 200 250 300 50 100 150 200 250 300 Air flow [CFM] Air flow [CFM] PLH24AK PLH24AK Hi Lo 350 Air flow [CFM] 24 40 36 32 28 Static 24 pressure 20 [in. W.G. O10-2] 16 12 8 4 0 300 Hi 8 Air flow [CFM] 0 250 PLH30/36/42AK 20 0 200 Air flow [CFM] Air flow [CFM] 40 36 32 28 Static 24 pressure 20 [in. W.G. O10-2] 16 12 8 4 0 50 100 150 200 250 300 350 400 450 Hi Lo 50 100 150 200 250 300 350 400 450 Air flow [CFM] Air flow [CFM] OC244-52 Oc244--2.qxd 7/16/2001 4:14 PM Page 53 3 direction airflow (Horizontal vane) Rectangular duct PLH30/36/42AK 40 36 32 28 Static 24 pressure 20 -2 [in. W.G. O10 ] 16 12 8 4 0 Rounded duct PLH30/36/42AK 40 36 32 28 Static 24 pressure 20 -2 [in. W.G. O10 ] 16 12 8 4 0 Hi Lo 50 100 150 200 250 300 350 400 450 Hi Lo 50 100 150 200 250 300 350 400 450 Air flow [CFM] Air flow [CFM] 2 direction airflow (Horizontal vane) Rectangular duct PLH18AK Rounded duct PLH18AK 100 90 100 80 80 90 70 60 50 70 Static pressure [in. W.G. O10-2] 40 30 20 10 0 Hi 60 Static 50 pressure [in. W.G. O10-2] 40 30 Lo Lo 20 10 0 50 100 150 200 250 300 350 Air flow [CFM] PLH24AK 120 110 100 90 80 Static 70 pressure 60 -2 [in. W.G. O10 ] 50 40 30 20 10 0 Hi 50 100 150 200 250 Air flow [CFM] PLH24AK Hi Lo 50 100 150 200 250 300 350 400 450 500 550 120 110 100 90 80 Static 70 pressure 60 -2 [in. W.G. O10 ] 50 40 30 20 10 0 Hi Lo 50 100 150 200 250 300 350 400 450 500 550 Air flow [CFM] PLH30/36/42AK 120 110 100 90 80 Static 70 pressure 60 -2 [in. W.G. O10 ] 50 40 30 20 10 0 Air flow [CFM] PLH30/36/42AK Hi Lo 50 100 150 200 250 300 350 400 450 500 550 120 110 100 90 80 Static 70 pressure 60 -2 [in. W.G. O10 ] 50 40 30 20 10 0 Hi Lo 50 100 150 200 250 300 350 400 450 500 550 Air flow [CFM] Air flow [CFM] OC244-53 Oc244--2.qxd 12 7/16/2001 4:14 PM Page 54 SYSTEM CONTROL 1. VARIETY OF SYSTEM CONTROL FUNCTIONS 1 2 Group control with a single remote controller (See page OC24455.) 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. Unit Remote controller Control using two remote controllers (See page OC24456.) Unit Unit 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. Unit Remote controller 3 Both remote ON/OFF and individual controls (See page OC24456.) w Timer adapter (PAC-SA89TA-E) is needed. 4 Optional adapter Relay box Unit Remote ON/OFF switch Individual control by grouping remote controllers (See page OC24457.) Remote controller 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. Unit Remote controller 5 Multiple remote control display (See page OC24458.) w Multiple display adapter (PAC-SA88HA-E) is needed. 6 Auto restart function (See page OC24458.) Unit Remote control display board Unit All units can be turned on or off simultaneously using a remote ON-OFF switch. Also, each unit can be controlled individually by each remote controller. Dunning remote ON-OFF control, a message of “CENTRALLY CONTROLLED” is displayed on the LCD of the remote controller. This is available for both one unit control and several units control. 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 Circuit breaker Remote controller A unit can be started or stopped with the circuit breaker on or off. Remote controller is also available. With this function, when the power is restored after power failure, the unit will restart automatically. (However, when the remote controller POWER ON/OFF button is OFF, the unit will not start.) OC244-54 Oc244--2.qxd 7/16/2001 4:14 PM Page 55 2. GROUP CONTROL WITH A SINGLE REMOTE CONTROLLER A maximum of 50 units can be started in order according to the dip switch settings Figure 1 To remote controller To next unit To next unit L1 L2 GR 1 2 3 Master unit electrical box L1 L2 GR 1 2 3 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. 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 ▼ Should be removed from all units other than unitNo.0: (Master Unit). CN40 CN40 SW2 SW2 ON 1 2 3 4 5 6 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 16 4 5 6 1 2 3 4 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. OC244-55 5 6 Oc244--2.qxd 7/16/2001 4:14 PM Page 56 3. CONTROL USING TWO REMOTE CONTROLLERS 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 dip switch SW17-7 of the remote controller. Figure 4 Individual Multiple operation 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. Figure 5 Remote controller SW17 Main remote controller Sub remote controller F OF 8 7 6 5 4 3 2 F OF 1 8 7 6 5 4 3 2 1 Turn SW17-7 ON. 4. REMOTE ON-OFF AND INDIVIDUAL REMOTE CONTROLS This method is available 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 OC244-56 Oc244--2.qxd 7/16/2001 4:14 PM Page 57 NOTE1 : Install the relay box where you can be serviced it 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 208/230V 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 tube. 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 To No.2 unit X2 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. w1After all units start together, if SW2 is turned OFF, each unit can be individually stopped by each remote controller. w2After 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 centralize monitoring of units installed in different places without a special control board. ● Remote control cables are extendible up to 550 yards When the cable length exceeds 33ft, use the double-insulated two-care 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. OC244-57 Remote controller cable (2-core) Remote controller Oc244--2.qxd 7/16/2001 4:14 PM Page 58 6. MULTIPLE REMOTE CONTROL DISPLAY Indoor controller board You can control several units with a multiple remote control display, by wiring an optional multiple display adapter (PAC-SA88HA-E) with relays and lamps on the market. How to wire (1) Connect the multiple 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 > X2 YELLOW X1 ORANGE RED Electrical insulation is needed. BROWN 1 connector(5P) GL X2 GREEN 5 CN51 CN51 Optional multiple display adapter X1 RL Power supply Wiring at the actual place CN51 The maximum distance between indoor board and relay is 33ft. [Notes on Signs] X1:Relay (for operation lamp) X2:Relay (for check lamp) RL:Operation Lamp GL:Check Lamp [Field supplied parts] Relays:12V DC with rated coil power consumption below 0.9W. Lamps:Matching to power supply voltage. <System> 3wires 3wires 3wires Power supply No.1 unit 2wires No.2 unit Remote controller cable Multiple 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 X1-1 X2-1 X1-2 1 Multiple remote controller adapter 5 No.1 unit 1 No.2 unit X2-2 RL-3 X1-3 GL-3 X2-3 X1-3 X2-3 Multiple Remote Control Display 5 1 5 No.3 unit connect to the connector CN51 Relay box 7. AUTO RESTART FUNCTION By setting the dip switch SW1-8 to ON, the air conditioner can be started/stopped by power supply ON/OFF. If the air conditioner is OFF before the power failure, it will not start operation by power restore. •This function is mainly to emergency performance when the power supply stops temporarily. Therefore, since the protection function (for example, clank case heater and prevention from restarting in 3 minutes, etc.) of the device is not operated, this function should not be used mostly. 8. TIMER OPERATION OR THE OPERATION BY AN EXTERNAL SIGNAL <Wiring> A A B B Brown Red A : an optional timer adapter B : a single-throw switch Orange Remote controller Brown Red Orange Remote controller For remote control, connect the optional timer adapter (PAC-SA89TA-E) OC244-58 Oc244--2.qxd 7/16/2001 13 4:14 PM Page 59 DISASSEMBLY PROCEDURE PLH18AK Be careful on removing heavy parts. OPERATING PROCEDURE 1. Removing the air intake grille (1) Slide the knob of air intake grille to the direction of the arrow 1 to open the air intake grille. (2) Remove the string hook from the panel to pretend the grille from dropping. (3) Slide the shaft in the hinge to the direction of the arrow2 and remove the air intake grille. PHOTOS&ILLUSTRATIONS Figure 1 Air intake grille Grille Air intake grille knob 2. Removing the room temperature thermistor (1) Remove the screw(✕1) in the room temperature thermistor holder to remove the holder and the room temperature thermistor. (2) Remove the 1 screw from the bell mouth, and unscrew the another 2 screws (fixed to the oval hole which has different diameter) to remove the bell mouth. (3) Hold the holder claw, and remove the room temperature thermistor and holder. (4) Disconnect the connector (red) in the indoor control board. Photo 1 Screws Bell mouth Room temperature thermistor Air intake grille Photo 2 3. Removing the electrical box (1) Disconnect the lead wire of the vane motor from the clamp, and disconnect the white connector (10P). Turbo fan (2) Remove the room temperature thermistor with the holder. (3) Remove the bell mouth.(See photo 1) (4) Disconnect the relay connector in the electrical box. Red (3P) for fan motor Electrical White (2P) for pipe temperature detecting thermistor box Blue (2P) for drain pump White (3P) for drain sensor Green (6P) for auxiliary heater (5) Remove the 3 screws from the electrical box, loosen another 2 screws to remove the box. Power <Electrical parts in the electrical box> supply Indoor controller board board Power supply board Terminal block Connector Capacitor Heater contactor OC244-59 Nut Capacitor Heater contactor Terminal block Indoor controller board Connector Oc244--2.qxd 7/16/2001 4:14 PM Page 60 OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 4. Remove the fan motor (1) Remove the bell mouth.(See photo 1) (2) Remove the electrical box.(See photo 2) (3) Remove the turbo fan nut. (4) Pull out the turbo fan. (5) Disconnect the connector of the fan motor lead wire. (6) Remove the 4 nuts of the fan motor. Fan motor Photo 3 Nut Nut 5. Removing the pipe temperature thermistor (1) Remove the bell mouth.(See photo 1) (2) Remove the electrical box.(See photo 2) (3) Remove the turbo fan. (4) Remove the screw of the service panel. (5) Remove the service panel. (6) Remove the pipe temperature thermistor which is inserted into the holder installed to the thin copper pipe. (7) Disconnect the 2-pin white connector. Photo 4 Connector Pipe temperature thermistor Service entrance 6. Removing the panel (1) Remove the air intake grille.(See figure 1) Corner panel (See figure 2) (1) Remove the screw of the corner. (2) Slide the corner panel to the direction of the arrow3, and remove the corner panel. Panel (See photo 5) (1) Disconnect the connector that connects with the unit. (2) Remove the 2 screws from the panel and loose another 2 screws, which fixed to the oval hole, have different diameter. (3) Rotate the panel a little to remove the screws.(Slide the panel so that the screw comes to a large diameter of the oval hole, which has two different diameters.) Figure 2 7. Removing the drain pan (1) Remove the panel. (See photo 5) (2) Remove the drain plug (Larger one), drain the remaining water in the drain pan. (3) Remove the corner cover. (2 screws) (4) Remove the bell mouth (See photo 1) (5) Remove the electrical box. (See photo 2) (6) Remove the lead wire holder. (1 screw) (7) Remove the 4 screws and pull out the drain pan. w Pull out the left and right of the pan gradually. Be careful not to crack or damage the pan. Photo 6 Corner Screw panel Panel Corner panel Photo 5 Connector Screw Panel Screw Screw Screw Drain pan Screw Lead wire holder OC244-60 Corner cover Drain plug(Larger one) Screw Oc244--3.qxd 7/16/2001 4:19 PM Page 61 OPERATING PROCEDURE 8. Removing the drain pump and drain sensor (1) Remove the panel. (See photo 5) (2) Remove the bell mouth. (See photo 1) (3) Remove the electrical box. (See photo 2) (4) Remove the drain pan. (See photo 6) (5) Remove the 3 screws of the drain pump. (6) Cut the drain hose band, pull out the drain hose from the drain pump. (7) Pull out the drain pump. (8) Remove the drain sensor and the holder. PHOTOS&ILLUSTRATIONS Photo 7 Drain sensor Screw Drain hose Fixing band Screw Drain pump 9. Removing the heat exchanger (1) Remove the panel. (See photo 5) (2) Remove the bell mouth. (See photo 1) (3) Remove the electrical box. (See photo 2) (4) Remove the drain pan. (See photo 6) (5) Remove the turbo fan. (See photo 3) (6) Remove the 3 screws of the piping cover, and pull out piping cover. (7) Remove the 4 screws of the outer wall cover, and pull out the outer wall cover. (8) Remove the screw of the coil support. (9) Remove the 2 screws of the coil. (10) Pull out the heat exchanger. Photo 8 Coil support Coil screws Heat exchanger Coil support Coil support Photo 9 Screw Outer wall cover OC244-61 Piping cover Screws of piping cover Oc244--3.qxd 14 7/16/2001 4:19 PM Page 62 PARTS LIST PANEL PARTS PLH18AK PLH24AK PLH30AK PLH36AK PLH42AK 10 9 8 2 7 3 1 4 5 11 12 13 6 14 Q'ty / set No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Parts No. T7W T7W R01 R01 R01 R01 R01 R01 R01 R01 T7W T7W T7W T7W E12 E05 E01 E00 E00 E00 E00 E00 E00 E01 E05 A00 E00 E01 003 002 638 638 500 691 223 063 040 040 713 305 673 239 Parts Name Specification AIR OUTLET GRILLE VANE ASSY CORNER PANEL CORNER PANEL L.L FILTER GRILLE ASSY VANE MOTOR VANE BUSH GEAR (VANE) GEAR REMOTE CONTROLLER BOARD 35ft CABLE ASSY SCREW ASSY 250V 0.16A FUSE Remarks PLH (Drawing No.) 18 , 24 , 30 , 36 , 42 AK 1 4 1 3 1 1 4 8 4 4 1 1 1 1 OC244-62 Wiring RecomDiagram mended Symbol Q'ty MV R.B F3 Price Unit Amount Oc244--3.qxd 7/16/2001 4:19 PM Page 63 FUNCTIONAL PARTS PLH18AK PLH24AK PLH30AK PLH36AK PLH42AK 11 10 1 2 9 3 8 7 6 4 5 No. 1 2 3 4 5 6 7 8 9 10 11 Parts No. R01 R01 R01 T7W T7W T7W T7W T7W T7W T7W T7W R01 T7W R01 T7W T7W T7W T7W T7W R01 E00 E01 08K E07 E06 E05 E71 E72 E73 E74 E75 E00 E06 20J E00 E02 E12 E13 E08 A41 114 114 097 300 300 300 480 480 480 480 480 418 202 303 700 706 762 762 762 105 Parts Name TURBO FAN TURBO FAN SPL WASHER HEATER ELEMENT HEATER ELEMENT HEATER ELEMENT HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER RESTRICTOR VALVE PIPE TEMPERATURE THERMISTOR INSULATOR THERMOSTAT THERMAL FUSE FAN MOTOR FAN MOTOR FAN MOTOR RUBBER MOUNT Specification 700W 867W 1000W 219-F PN6N70-L PN6N120-L PN6N110-L Q'ty / set Remarks PLH 18 24 30 36 42 (Drawing No.) AK AK AK AK AK 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 4 4 4 4 OC244-63 Wiring RecomDiagram mended Symbol Q'ty H1 H1 H1 RT2 26H FS2 MF MF MF Price Unit Amount Oc244--3.qxd 7/16/2001 4:19 PM Page 64 FUNCTIONAL PARTS PLH18AK PLH24AK PLH30AK PLH36AK PLH42AK 16 15 1 14 2 3 13 4 12 11 No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Parts No. T7W E00 T7W E03 R01 E00 R01 31K R01 E02 T7W 410 T7W E14 R01 E00 R01 KV6 R01 556 T7W E11 R01 673 R01 479 T7W E06 T7W E02 R01 A41 R01 A48 T7W E06 T7W E07 T7W E08 527 355 266 241 313 239 310 202 246 246 716 215 215 255 255 524 524 529 529 529 5 10 6 9 7 8 Parts Name Specification 18 AK DRAIN HOSE 1 DRAIN PUMP 1 DRAIN SENSOR 1 SENSOR HOLDER 1 POWER BOARD 1 FUSE 2 250V 6A CONTROLLER BOARD 1 ROOM TEMPERATURE THERMISTOR 1 TERMINAL BLOCK 1 2P (1, 2) TERMINAL BLOCK 1 3P (1, 2, 3) 3P (L1, L2, GR) 1 TERMINAL BLOCK HEATER CONTACTOR LY-2F DC12V 1 HEATER CONTACTOR LY-1F DC12V 1 3.5+ 440V CAPACITOR 7.0+ 440V CAPACITOR 1 DRAIN PLUG 1 DRAIN PLUG 1 DRAIN PAN DRAIN PAN DRAIN PAN Q'ty / set Wiring RecomRemarks PLH Diagram mended 24 30 36 42 (Drawing No.) Symbol Q'ty AK AK AK AK 1 1 1 1 1 DP 1 1 1 1 DS 1 1 1 1 1 1 1 1 P.B 1 1 1 2 F1,F2 2 2 2 1 I.B 1 1 1 1 RT1 1 1 1 1 TB5 1 1 1 1 TB4 1 1 1 1 TB2 1 1 1 88H1 1 2 2 2 88H1,88H2 C 1 1 1 1 C 1 1 1 1 1 1 1 1 1 1 OC244-64 1 1 Price Unit Amount Oc244--3.qxd 7/16/2001 15 4:19 PM Page 65 OPTIONAL PARTS 1. REFRIGERANT PIPES Service Ref. : PLH18AK/24AK Part No. Pipe length (ft.) Pipe size O.D.(in.) (in.) Connection method PACSK03FS 10 PACSK05FS PACSK07FS PACSK10FS 16 23 33 Liquid:[3/8 Gas:[5/8 Indoor unit: Flared Outdoor unit: Flared PACSK15FS 49 PACSK03FF 10 PACSK05FF PACSK07FF PACSK10FF 16 23 33 Liquid:[1/2 Gas:[3/4 Indoor unit: Flared Outdoor unit: Flared PACSK15FF 49 Service Ref. : PLH30/36AK Part No. Pipe length (ft.) Pipe size O.D.(in.) (in.) Connection method Service Ref. : PLH42AK Part No. Pipe length (ft.) Pipe size O.D.(in.) (in.) Connection method PACSK07FK 23 PACSK15FK 49 Liquid:[1/2 Indoor unit: Flared Gas:[7/8 Outdoor unit: Flared Note 1. The refrigerant pipes and the indoor unit contain a nitrogen holding charge which must be removed by evacuation. <Piping connection procedures> See that ball valve on outdoor unit is fully shut (unit is shipped with valve shut). Remove caps from piping and unit and make flare connection promptly. Repeat for each connection, one at a time. After all piping connections between indoor and outdoor unit have been completed, vacuum-purge air from system through the service port for the ball valve on the outdoor unit. Note 2. The following parts are contained in optional refrigerant piping kit. Heat insulating cover, vinyl tapes, nipples, sleeve and flange (for wall hole), connecting cables etc. 2. TIMER When using a program timer, a program timer adapter (PAC-825AD) is also needed. Part No. Model Name PAC-SC32PTA (with set back function) Program timer 2-1 Program timer specifications Parts name Parts No. Exterior dimensions (inch) Installation Type of clock Clock accuracy Display-Time -Week -Timer setting unit Program cycle Timer setting unit No. of set points Power rating Program timer PAC-SC32PTA 5-4/32x4-23/32x23/32 (130x120x18mm) Wall mount Quartz ±50 second / month at 77°F Liquid crystal display Liquid crystal display Liquid crystal display 24 hours 30 minutes 48 / day 5V DC ±5% (Supplied by Remote Controller) OC244-65 Oc244--3.qxd 7/16/2001 4:19 PM Page 66 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-SC32PT) 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 79°F 23:00~8:00 Setback operation with 4 degrees of setback As shown in the chart on the right, the set temperature rises 4 degrees automatically during the setback operation. When the setback operation ends, normal operation will begin. (3) Weekly timer function Daily timer function can apply to each day of the week. 83˚F 79˚F 8:00 Normal operation 23:00 Setback operation 8:00 Normal operation 2-3. Names and functions <PAC-SC32PTA> WEEKLY TIMER SETTING DISPLAY CURRENT TIME DISPLAY SET BACK DISPLAY DAILY TIMER SETTING DISPLAY Set timer for a week. During MONITOR status,current time is display. During Daily timer setting, a time desire for timer setting is displayed. Indicates the set back range. 24 hours is divided into 48 blocks and each block express 30 minutes. The block display consists of 3 pattern. Set back 1=2°F 2=4°F 3=6°F 4=8°F. SET BACK SETTING SW SET SET/MONITOR DISPLAY During SET is display, clock adjustment, change of weekly day, daily and weekly timer setting can be performed. During MONITOR is display, all switches except SET/MONITOR SW are invalidated. This is normal status. SET MONITOR SET/MONITOR BACK S M T W T F S TODAY WEEKLY SETTING 0 3 6 12 15 12 15 18 21 24 SET BACK ON ON DAILY SETTING Used for set back setting. ON/SET BACK/OFF SW SET BACK Used to specify the time setting pattern. CLOCK OFF DAILY TIMER OFF PROGRAM TIMER PAC-SC32PTA WEEK DAY SETTING SW DAILY TIMER SW Used for week day setting. Used for timer setting in 30 minutes unit. MODE SELECTOR SW CLOCK ADJUSTMENT SW WEEKLY TIMER SW Using this switch select “MONITOR” or “SET” Mode. Used for adjustment of the current time. Used for setting timer in day of week unit. Push SW to advance the time. Each time the button is pushed the time advance by 1 minute, pushing continuously advances by 1 minute at 0.5 second interval, and when the lower digit of minute becomes 0 indication advances in 10 minutes unit. SW is used for reversing the time. Each time the button is pushed the time reverses by 1 minute, pushing continuously reverses the time by 1 minute at 0.5 second interval, and when the lower digit of minute becomes 0 indication reverses in 10 minutes unit. Pushing SW moves the week day light display in order of S→M→T→W… enabling to set the week day. “MONITOR” :Indicates the current timer setting. All switch expect MODE SELECTOR SW are invalidated then.This is the normal status. “SET”: Set to “SET” mode for clock adjustment, charge of week day, daily and weekly timer setting. OC244-66 Oc244--3.qxd 7/16/2001 4:19 PM Page 67 2-4. 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 5-wire cable as shown in the figure below Connect to indoor unit 2-wire cable SET SET FILTER NOTE:While the program timer is connected to the remote controller, the 24hour ON/OFF timer on the remote controller will not operate. BACK S M T W T F S MONITOR 0 3 6 12 12 15 18 21 15 CHECK MODE 24 TEST RUN SET/MONITOR TODAY WEEKLY SETTING SET BACK ON CLOCK OFF ON DAILY SETTING SET BACK DAILY TIMER OFF PROGRAM TIMER PAC-SC32PTA 4 Use 5-wire cable Connect to CN1 Connect to CN1 3. TIMER ADAPTER This adapter is needed for system control and for operation via external contacts. Adapter connection is described on page OC244-56. Part No. PAC-SA89TA-E ORN 1 BRN 2 RED 3 4. MULTIPLE REMOTE CONTROLLER ADAPTER This adapter is needed for remote indication (operation/check). Adapter connection is described on page OC244-58. Part No. PAC-SA88HA-E 1 2 3 4 5 BRN RED ORN YLW GRN 5. MULTI FUNCTION CASEMENT (For HIGH EFFICIENCY FILTER AND FRESH AIR INTAKE) Part No. PAC-SG03TM-E Applicable Model PLH18/24/30/36/42AK 6. HIGH EFFICIENCY FILTER ELEMENT Part No. PAC-SG01KF Applicable Model PLH18/24/30/36/42AK 7. AIR OUTLET SHUTTER PLATE Part No. PAC-SG06SP-E Applicable Model PLH18/24/30/36/42AK OC244-67 Oc255b.qxd 7/19/2001 2:06 PM Page 4 © Copyright 2000 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD. Distributed in Jun. 2001. No.OC255 REVISED EDITION-B 20 Distributed in Mar. 2001. No.OC255 REVISED EDITION-A 20 Distributed in Dec. 2000. No.OC255 Printed in Atlanta 01/01 New publication, effective 07/2001 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.