Download PK-1.6GKL PK-2GKL - Mitsubishi Electric
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OC230 --1.qxp 8/28/00 1:54 PM Page 1 2000 SPLIT-TYPE, AIR CONDITIONERS No.OC230 TECHNICAL & SERVICE MANUAL Series PK Wall Mounted Indoor unit [Model names] [Service Ref.] PK-1.6GKL PK-2GKL PK-1.6GKL PK-2GKL This manual does not cover the following outdoor units. When servicing them, please refer to the service manual No.OC127 Revised Edition-A and this manual in a set. [Service Ref.] PU-1.6VLJA2 PU-2VJA2 CONTENTS Indoor unit ON/OFF Remote controller 1. PART NAMES AND FUNCTIONS ·······················2 2. SPECIFICATIONS ················································4 3. DATA·····································································6 4. OUTLINES AND DIMENSIONS ·························10 5. WIRING DIAGRAM ············································11 6. REFRIGERANT SYSTEM DIAGRAM······················12 7. OPERATION FLOW-CHART ··································13 8. MICROPROCESSOR CONTROL ···························16 9. TROUBLESHOOTING ···········································29 10. SYSTEM CONTROL ··········································35 11. DISASSEMBLY PROCEDURE···························40 12. PARTS LIST ·······················································44 13. OPTIONAL PARTS·············································46 OC230 --1.qxp 1 8/28/00 1:55 PM Page 2 PART NAMES AND FUNCTIONS ● Indoor Unit Filter Air intake grille Air intake Auto vane Guide vane Air outlet 2 OC230 --1.qxp 8/28/00 1:55 PM Page 3 ●Wireless remote controller ● When cover is open. ADDRESS display display display Displays the refrigerant address. Lights up while transmission to the indoor unit is mode using switches. UNIT NO. display SET TEMP. display indicates desired temperature set. Displays the number of unit.. display OPERATION MODE display Operation mode display indicates which operation mode is in effect. FUNCTION NO. display Displays the mode. DIsplays the current time. SELECTION NO. display “ Displays the selection number.. • FUNCTION display TEST RUN • CHECK ”display Flashes when the current time is displayed. Lights up when function are set.. • CLOCK display TIMER display display ADDRESS UNIT No. FUNCTION No. ˚C SELECTION No. CHECK&TEST RUN display indicates that the unit is being checked or test-run. Displays when in timer operation or when setting timer. AM ➡ ”“ ➡ “ PM FUNCTION ” display AM TEST RUN display PM CHECK Displays the order of timer operation. ON/OFF Displays when batteries are dead. “ START display MODE The vertical direction of airflow is indicated. FAN STOP VANE HR. display FAN SPEED display indicates which fan speed has been selected. MIN. ”“ ” display Displays whether timer is on or off. “ ▼ ”“ ▼ TEMP. ” display Displays when the current time and the timer time can be changed. RESET TEMP. button display SET TEMPERATURE button sets any desired room temperature. The unit is turned ON and OFF alternately each time the button is pressed. TEMP. ● When cover is open. ON/OFF MODE SELECT button Used to switch the operation mode between cooling , drying , mode. START MODE FAN SPEED SELECT button FAN STOP VANE HR. TIMER CONTROL buttons STOP (OFF timer): when this switch is set, the air conditioner will be automatically stopped at the preset time. START (ON timer): when this switch is set, the air conditioner will be automatically started at the preset time. HR. and MIN.buttons Buttons used to set the “hour and minute” of the current time and timer settings. Used to change the fan speed. MIN. RESET button VANE CONTROL button RESET button Used to change the airflow direction. 3 OC230 --1.qxp 2 8/28/00 1:55 PM Page 4 SPECIFICATIONS 1. STANDARD SPECIFICATION Service Ref. Item Indoor, Outdoor D.B. / W.B.°C Condition Capacity w1 Btu/h W kW REFRIGERANT PIPING OUTDOOR UNIT INDOOR UNIT Total input w1 Service Ref. Power supply(phase, cycle,voltage) kW Input A (%) Running current (Power factor) A Starting current External finish Heat exchanger Fan Fan(drive) o No. kW Fan motor output m3/min (CFM) Airflow (Low-High) Pa (mmAq) External static pressure kW Booster heater Operation control & Thermostat dB Noise level (Low-High) w2 mm (in.) Cond. drain conn. I.D. W mm (in.) D mm (in.) Dimensions H mm (in.) kg (lbs) Weight Service Ref. Power supply (phase, cycle, voltage) kW Input A (%) Running current /Power factor A Starting current External finish Refrigerant control Compressor Model kW Motor output Starter type Protection devices Heat exchanger Fan Fan(drive) o No. kW Fan motor output m3/min(CFM) Airflow Defrost method dB Noise level w2 mm (in.) W mm (in.) Dimensions D mm (in.) H kg (lbs) Weight W Crankcase heater kg (lbs) Refrigerant Charge mm (in.) Liquid Pipe size O.D. mm (in.) Gas Indoor side Connection method Outdoor side Between the indoor & Height difference outdoor units Piping length PK-1.6GKL PK-2GKL 27/19.0°C, 35/24°C 27/19.0°C, 35/24°C Cooling (JIS B8616,GB4706.32-96) Cooling (JIS B8616,GB4706.32-96) 19,100 13,300 5,600 3,900 2.51/2.55 1.49/1.59 PK-2GKL PK-1.6GKL Single, 50Hz, 220/240V Single, 50Hz, 220/240V 0.07 0.07 0.33(96/88) 0.33(96/88) 0.4 0.4 Munsell 0.70Y 8.59/0.97 Munsell 0.70Y 8.59/0.97 Plate fin coil Plate fin coil Line flow (direct) o 1 Line flow (direct) o 1 0.030 0.030 9-12 (318-424) 9-12 (318-424) 0 (direct blow) 0 (direct blow) — — Wireless remote controller & Built-in Wireless remote controller & Built-in 36 - 43 36 - 43 20 (13/16) 20 (13/16) 990 (39) 990 (39) 235 (9-1/4) 235 (9-1/4) 340 (13-3/8) 340 (13-3/8) 16 (35) 16 (35) PU-1.6VLJA2 PU-2VJA2 Single, 50Hz, 220/240V Single, 50Hz, 220/240V 1.42 / 1.52 2.44 / 2.48 6.7 / 6.9 (97/92) 11.3 / 10.8(98/96) 30 /33 48 / 52 Munsell 5Y 7/1 Munsell 5Y 7/1 Capillary tube Capillary tube Hermetic Hermetic RH247VFC NHJ41VMD 1.2 2.0 Line start Line start Inner thermostat, HP/LP switch Plate fin coil Plate fin coil Propeller (direct ) o 1 Propeller (direct) o 1 0.065 0.065 45 (1588) 45 (1588) — — 49 49 870 (34-1/4) 870 (34-1/4) 295 (11-5/8) 295 (11-5/8) 650 (25-5/8) 650 (25-5/8) 45 (99) 60 (132) 32 / 38 — R-22 1.78 (3.9) R-22 1.3 (2.9) 9.52 (3/8) 9.52 (3/8) 15.88 (5/8) 15.88 (5/8) Flared Flared Flared Flared w3 Max. 15m w3 Max. 20m w3 Max. 20m w3 Max. 30m w1 Refrigerant piping length (one way) : 5m (16ft) w2 Noise level is measured in an unacoustic room based on JIS Z8731 conditions. w3 Up to 20m it is unnecessary to charge additional refrigerant. Guaranteed operating range Indoor Upper limit D.B. 35˚C, W.B. 22.5˚C Cooling Lower limit D.B. 21˚C, W.B. 15.5˚C Outdoor D.B. 52˚C (46˚C) D.B. 21˚C ( ) : PU-1.6VLJA2 4 OC230 --1.qxp 8/28/00 1:55 PM Page 5 2. POWER SUPPLY & MODEL NAMES Power supply 50Hz Service Ref.(Indoor unit) 1ph. 220, 230, 240V Service Ref.(Outdoor unit) PK-1.6GKL PK-2GKL PU-1.6VLJA2 PU-2VJA2 — — 3ph. 380/220, 400/230, 415/240V Notes : 1. Power supply key V(L) … 1ph, 220, 230 240V, 50Hz 2.Primary power supplies for all indoor units are single-phase. 3. ELECTRICAL SPECIFICATION (1) Rating conditions JIS B8616,GB4706.32-96 Series PK Indoor Unit (Single Phase) V : 220V 50Hz Power supply (1 Phase) Service Ref. Current Input Starting courrent PK-1.6GKL PK-2GKL PK-1.6GKL PK-2GKL 0.33 0.33 0.33 0.33 KW 0.07 0.07 0.07 0.07 A 0.4 0.4 0.4 0.4 PU-1.6 PU-2 PU-1.6 PU-2 V : 240V 50Hz Power supply (1 Phase) Service Ref. Input Starting courrent Outdoor unit V : 230V 50Hz A Outdoor unit Current Indoor : D.B. 27°C (80°F), W.B. 19°C(66°F) Outdoor : D.B. 35°C (95°F) PK-1.6GKL PK-2GKL A 0.33 0.33 KW 0.07 0.07 A 0.4 0.4 PU-1.6 PU-2 5 OC230 --1.qxp 3 8/28/00 1:55 PM Page 6 DATA 1. PERFORMANCE DATA Cooling capacity 50Hz PK-1.6GKL, PK-2GKL Service Ref. Temperature Outdoor D.B. 21˚C (69.8˚F) 25˚C (77˚F) 30˚C (86˚F) 32.2˚C (90˚F) 35˚C (95˚F) 40˚C (104˚F) Indoor W.B. PK-1.6GKL T.C. C.F. (T.I.) PK-2GKL T.C. C.F. (T.I.) Service Ref. Temperature Outdoor D.B. 16˚C (60.8˚F) 18˚C (64.4˚F) 40.6˚C 19˚C (66.2˚F) (105˚F) 19.4˚C (67˚F) 20˚C (68˚F) 22˚C (71.6˚F) 16˚C (60.8˚F) 18˚C (64.4˚F) 45˚C 19˚C (66.2˚F) (113˚F) 19.4˚C (67˚F) 20˚C (68˚F) 22˚C (71.6˚F) 16˚C (60.8˚F) 18˚C (64.4˚F) 46˚C 19˚C (66.2˚F) (115˚F) 19.4˚C (67˚F) 20˚C (68˚F) 22˚C (71.6˚F) 16˚C (60.8˚F) 18˚C (64.4˚F) 50˚F 19˚C (66.2˚F) (122˚F) 19.4˚C (67˚F) 20˚C (68˚F) 22˚C (71.6˚F) 16˚C (60.8˚F) 18˚C (64.4˚F) 52˚C 19˚C (66.2˚F) (125.5˚F) 19.4˚C (67˚F) 20˚C (68˚F) 22˚C (71.6˚F) Evaporator airflow (CMM) Bypass factors S.H.F. at rating conditions 16˚C 18˚C 19˚C 19.4˚C 20˚C 22˚C 16˚C 18˚C 19˚C 19.4˚C 20˚C 22˚C 16˚C 18˚C 19˚C 19.4˚C 20˚C 22˚C (60.8˚F) (64.4˚F) (66.2˚F) (67˚F) (68˚F) (71.6˚F) (60.8˚F) (64.4˚F) (66.2˚F) (67˚F) (68˚F) (71.6˚F) (60.8˚F) (64.4˚F) (66.2˚F) (67˚F) (68˚F) (71.6˚F) 3.9 4.2 4.3 4.4 4.4 4.7 3.8 4.1 4.2 4.3 4.3 4.6 3.7 3.9 4.1 4.1 4.2 4.5 0.81 0.82 0.83 0.83 0.84 0.86 0.84 0.85 0.86 0.86 0.87 0.89 0.90 0.92 0.93 0.93 0.94 0.96 5.6 6.0 6.2 6.2 6.4 6.7 5.5 5.9 6.0 6.1 6.2 6.6 5.3 5.6 5.8 5.9 6.0 6.4 0.81 0.82 0.83 0.83 0.84 0.86 0.84 0.85 0.86 0.86 0.87 0.89 0.90 0.92 0.93 0.93 0.94 0.96 16˚C 18˚C 19˚C 19.4˚C 20˚C 22˚C 16˚C 18˚C 19˚C 19.4˚C 20˚C 22˚C 16˚C 18˚C 19˚C 19.4˚C 20˚C 22˚C (60.8˚F) (64.4˚F) (66.2˚F) (67˚F) (68˚F) (71.6˚F) (60.8˚F) (64.4˚F) (66.2˚F) (67˚F) (68˚F) (71.6˚F) 3.6 3.9 4.0 4.0 4.1 4.4 3.5 3.8 3.9 4.0 4.0 4.3 0.93 0.95 0.96 0.97 0.97 0.99 0.96 0.99 1.00 1.00 1.01 1.04 5.2 5.5 5.7 5.8 5.9 6.3 5.1 5.4 5.6 5.7 5.8 6.2 0.93 0.95 0.96 0.97 0.97 0.99 0.96 0.99 1.00 1.00 1.01 1.04 (60.8˚F) (64.4˚F) (66.2˚F) (67˚F) (68˚F) (71.6˚F) 3.4 3.6 3.7 3.8 3.9 4.1 1.03 1.06 1.07 1.08 1.08 1.11 4.9 5.2 5.4 5.4 5.5 5.9 1.03 1.06 1.07 1.08 1.08 1.11 Indoor W.B. PK-1.6GKL T.C. C.F. (T.I.) PK-2GKL T.C. C.F. (T.I.) 3.4 3.6 3.7 3.8 3.8 4.1 3.2 3.4 3.6 3.6 3.7 3.9 3.2 3.4 3.5 3.6 3.6 3.9 4.8 5.2 5.3 5.4 5.5 5.9 4.6 4.9 5.1 5.2 5.3 5.7 4.6 4.9 5.1 5.1 5.2 5.6 4.4 4.7 4.9 4.9 5.0 5.4 4.3 4.6 4.7 4.8 4.9 5.3 1.04 1.06 1.08 1.08 1.09 1.12 1.10 1.12 1.14 1.15 1.16 1.20 1.11 1.14 1.15 1.16 1.17 1.21 12 0.10 0.80 1.04 1.06 1.08 1.08 1.09 1.12 1.10 1.12 1.14 1.15 1.16 1.20 1.11 1.14 1.15 1.16 1.17 1.21 1.16 1.19 1.21 1.22 1.23 1.28 1.19 1.22 1.24 1.25 1.26 1.31 12 0.12 0.69 Notes: 1. T.C. : Total capacity (kW) … (kcal/h)=(kW)x860, (Btu/h)=4x(kW)x860 C.F.(T.I.) : Correction factors of Total input(Indoor unit input + Outdoor unit input) 2. (°F)=32+9/5(°C) 3. Guaranteed operating range(cooling) Lower limit … Indoor : D.B. 21°C(70°F) , W.B. 15.5°C(60°F) Outdoor : D.B. 21°C(70°F) Upper limit … Indoor : D.B. 35°C(95°F) , W.B. 22.5°C(72.5°F) Outdoor : D.B. 46°C(115°F) W Outdoor : D.B. 52°C(125.5°F)…VJ,YJ COOLING CAPACITY correction factors 50Hz Service Ref. PK-1.6GKL PK-2GKL 5m (16ft) 1.0 1.0 10m (33ft) 0.992 0.985 Refrigerant piping length (one way) 15m (49ft) 20m (66ft) 25m (82ft) 30m (98ft) 0.987 0.982 — — 0.975 0.964 0.954 0.944 6 35m (115ft) — — 40m (131ft) — — OC230 --1.qxp 8/28/00 1:55 PM Page 7 2. ELECTRICAL DATA 2-1 Rating conditions (JISB 8616,GB4706.32-96) Indoor : D.B. 27°C, W.B. 19°C Outdoor : D.B. 35°C, W.B. 24°C Indoor unit … 220V / 230V / 240V 50Hz 1phase Outdoor unit…220V / 230V / 240V 50Hz 1phase Service Ref. Indoor unit PK-1.6GKL Outdoor unit PU-1.6VLJA2 PK-2GKL PK-1.6GKL PK-2GKL PK-1.6GKL PK-2GKL PU-2VJA2 PU-1.6VLJA2 PU-2VJA2 PU-1.6VLJA2 PU-2VJA2 3,900 5,600 3,900 5,600 3,900 5,600 Total Input (kW) 1.49 2.51 1.54 2.53 1.59 2.55 Input (kW) 0.07 0.07 0.07 0.07 0.07 0.07 Current (A) 0.33 0.33 0.33 0.33 0.33 0.33 Starting current (A) 0.40 0.40 0.40 0.40 0.40 0.40 Input (kW) 1.42 2.44 1.47 2.45 1.52 2.48 Current (A) 6.7 11.3 6.7 11.0 6.9 10.8 Starting current (A) 30 48 32 50 33 52 Outdoor Indoor Capacity (W) 3. OUTLET AIR SPEED AND COVERAGE RANGE PK-1.6GKL PK-2GKL Air flow m /min 12 12 Air speed m/sec 5.3 5.3 10(32.8) 10(32.8) 3 Coverage range m (ft) The air coverage range is the value up to the position where the air speed is 0.25m/sec. when air is blown out horizontally from the unit at the Hi notch position. The coverage range should be used only as a general guideline since it varies according to the size of the room and the furniture inside the room. 7 OC230 --1.qxp 8/28/00 1:55 PM Page 8 Total 4. STANDARD OPERATION DATA Service Ref. PK-1.6GKL PK-2GKL Mode Cooling Cooling Capacity W 3,900 5,600 Input kW 1.49 2.51 PK-1.6GKL PK-2GKL 1, 50 1, 50 Indoor unit Service Ref. Electrical circuit Phase, Hz Volts V 220 220 Amperes A 0.33 0.33 PU-1.6VLJA2 PU-2VJA2 1, 50 1, 50 V 220 220 A MPa (kg/cm2) MPa (kg/cm2) 6.7 11.3 2.0 (20.6) 0.52 (5.3) 2.0 (20.4) 0.44 (4.5) Discharge temperature ˚C 70 72 Condensing temperature ˚C 52 52 Suction temperature ˚C 7 3 Ref. pipe length m 5 5 D.B. ˚C 27 27 W.B. ˚C 19 19 Discharge air temperature D.B. ˚C 14.2 11.6 Intake air temperature D.B. ˚C 35 35 W.B. ˚C 24 24 SHF 0.80 0.69 BF 0.10 0.12 Outdoor unit Service Ref. Phase, Hz Volts Amperes Outdoor Indoor side side Refrigerant circuit Discharge pressure Suction pressure Intake air temperature The unit of pressure has been changed to Mpa on the international system of unit (SI unit system). The converted score against the traditional unit system can be gotten according to the formula below. F) 1(Mpa ) = 10.2(kg/F 8 OC230 --1.qxp 8/28/00 1:55 PM Page 9 5. NOISE CRITERION CURVES PK-1.6GKL PK-2GKL NOTCH SPL(dB) Hi 43 Lo 36 LINE OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR 90 80 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 20 APPROXIMATE THRESHOLD OF REARING FOR CONTINUOUS NOISE NC-20 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz UNIT WALL Ambient temperature 27: Test conditions are based on JIS Z8731 1m 1m MICROPHONE 9 OC230 --1.qxp 8/28/00 1:55 PM Page 10 OUTLINES AND DIMENSIONS 4 Unit : mm 1.INDOOR UNIT PK-1.6GKL PK-2GKL Front view Left side 715 Air intake Right side 225 80 280 Air intake 53 Drain pipe. Wiring hole. ON STAND COOL HEAT OFF BY 245 70 21 340 245 for left piping Refrigerant pipe. 70 21 Knock out hole MITSUBISHI ELECTRIC mr.SLIm Auto vane 60 990 Less than 15 233 198 Air intake 340 Air intake 60 for right piping Refrigerant pipe. Drain pipe. Wiring hole. 235 Lower side Knock out hole 235 705 Air outlet 160 12-Louvers(manual) 40 60 80 79 Knock out hole for under piping Refrigerant piping.Drain pipe. Wiring hole 50 70 35 190 400 Service panel (Power supply access) 395 Front view(to open the grille) Filter grip 280 Terminal block to outdoor unit ÅrÇoÇoÅqÅ@ ëOñ Å@ÇeÇqÇnÇmÇs ÅrÇoÇoÅqÅ@ 31 ëOñ Å@ÇeÇqÇnÇmÇs Terminal block for power supply 581 (Left side piping installation) 35 54 86 449 153 700 (Flexible hose total length800) Drain pipe (VP-20) (Right side piping installation) Liquid pipe Gas pipe Model Liquid pipe Gas pipe 1.6 . 2 3/8F 5/8F Allowing clearances Front view 495 320 345 260 205 150 95 75 32 20 0 35 135 190 245 300 360 495 405 Unit center 14-[14hole for bolts 49-[5hole for tapping screw 30 or more Installation plate balance point hole Details of installation plate Right side 130 2. R5 R5 Sleeve w1 [90 170 190 0 230 210 420 Model 1.6 . 2 Knock out hole for right-rear piping R52.5 272 310 322 w2 MITSUBISHI ELECTRIC m r.SLIm 50 or more 150 or more Less than 130 (Necessary clearance for Unit installation) 425 5 2. Knock out hole for left-rear piping HEAT 230 R52.5 Left-rear piping hole STAND COOL BY 5 ON OFF 190 180 or more 0 35 55 80 Right-rear piping hole Through hole [90~[100 w1 Sleeves are available on the market. w2 This size shows the lower end of through hole. 10 OC230 --1.qxp 8/28/00 1:56 PM 5 Page 11 WIRING DIAGRAM PK-1.6GKL PK-2GKL SYMBOL P.B I.B CN2L CN51 FC SW1 SW2 SW3 SW5 SW6 SW7 SW8 SW9 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) SYMBOL I.B X4 F1, F2 ZNR LED1 LED2 C MF MV TB2~TB6 RT1 RT2 NAME SYMBOL R.B RELAY (FAN MOTOR) FUSE (6.3V / 250V) CN1 VARISTOR CN2 LED (DC 12V POWER) SW17 LED (DC 5V POWER) SW18 W.B CAPACITOR (FAN MOTOR) FAN MOTOR RU VANE MOTOR BZ TERMINAL BLOCK LED1 ROOM TEMPERATURE THERMISTOR SW2 (0: / 15k" , 25: / 5.4k" / DETECT) PIPE TEMPERATURE THERMISTOR / LIQUID (0: / 15k" , 25: / 5.4k" / DETECT) NAME REMOTE CONTROLLER BOARD (OPTION) CONNECTOR (PROGRAM TIMER) CONNECTOR (REMOTE SWITCH) SWITCH (ADDRESS SELECTOR) SWITCH (FUNCTION SELECTOR) WIRELESS REMOTE CONTROLLER BOARD RECEIVING UNIT BUZZER LED (RUN INDICATOR) SWITCH (COOLING ON / OFF) NOTES : 1. Since the indoor fan motor (MF) is connected with 230, 240V power. If 220V power is used, change the dip switch (SW8) on the indoor controller board as shown in fig : w2. SW8 SW8 fig w2 ON ON Indoor fan motor (MF)for 220V. OFF 1 2 3 4 5 6 OFF 1 2 3 4 5 6 2. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing. 3. Symbols used in wiring diagram above are, : Connector, : Terminal block. 4. 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. 11 OC230 --1.qxp 6 8/28/00 1:56 PM Page 12 REFRIGERANT SYSTEM DIAGRAM Unit : mm PK-1.6GKL / PU-1.6VLJA2 PK-2GKL / PU-2VJA2 INDOOR UNIT PK-1.6GKL PK-2GKL Low pressure switch Refrigerant pipe [15.88(5/8") (with insulator) option Charge pIug Flexible tube Check plug Ball valve Indoor heat exchanger OUTDOOR UNIT PU-1.6/2J series High pressure switch Outdoor heat exchanger Flared connection Flared connection Strainer Distributor Accumulator Pipe temperature thermistor RT2 Compressor Capillary tube Ball valve (with service port) Refrigerant pipe [9.52(3/8") (with insulator) option Capillary tube for injection (Only PU-2VJA2) PU-1.6 (O.D.3.2 I.D.1.8 OR900) PU-2 (O.D.4.0 I.D.2.0 OR430) flow of refrigerant 12 OC230 --1.qxp 7 8/28/00 1:56 PM Page 13 OPERATION FLOW-CHART MAIN OPERATION START Power circuit breaker 1 NO YES YES Check SW ON twice NO Operation SW ON w1 YES NO “OFF” timer YES NO NO “ON” timer Set time complete YES YES Set time complete NO YES w2 NO NO Trouble Remote controller operation display YES STOP Trouble STOP PROTECTION DEVICE SELF HOLD RELEASE PROTECTION DEVICE SELF HOLD w3 Remote controller indicator lamp OFF Remote controller trouble display Operating mode (COOL) NO Operating mode (DRY) NO YES COOL operation YES DRY operation w6 Indoor side FAN operation w4 Fan STOP Outdoor side w5 Compressor OFF Fan STOP w1 In addition, the centralized control and remote control can be operated. w2 The modes which indicate the sources of trouble are listed below. ● EO-Signal transmitting/receiving error ● P1-Room temperature thermistor malfunction ● P2-Pipe temperature thermistor malfunction ● P4-Drain sensor malfunction ● P5-Drain overflow ● P6-Coil frost ● P7-System error ● P8-Outdoor unit trouble w3 The CHECK switch will indicate 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 time-delay functions after compressor stops. w6 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.) 13 OC230 --1.qxp 8/28/00 1:56 PM Page 14 COOLING OPERATION COOL operation NO Initial COOLING YES Vane initial setting w8 Vane 50 deg downward angle 60 deg downward angle NO NO YES Fan speed LOW YES Downward discharge 1 hour YES NO Vane setting notch Vane horizontal airflow w9 Compressor thermostat ON NO YES Allowance cancel NO YES 3-minute time delay YES 6-minute time delay NO 3-minute compressor operation NO Allowance period NO NO w10 YES 6 minute time delay Coil frost protection Allowance set YES YES Coil frost protection NO w11 NO Cooling area YES NO 10-minute compressor operation YES Pipe temperature is 10°C or higher YES Defrosting protection detection temperature -1°C or lower NO NO YES 6-minute time delay YES Indoor pipe temperature is 1°C or lower NO Compressor ON 1 min continue FAN speed LOW FAN speed LOW 5 min elapse NO NO 16-minute compressor operation 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 pipe temperature thermistor reads -15°C or below for 3 minutes, the compressor will stop for 6 minutes. w11Heating area : Pipe temperature is more than 5 degrees above the room temperature. Cooling area : Pipe temperature is more than 5 degrees below the room temperature. FAN area : Pipe temperature is within 5 degrees either way of the room temperature. 14 OC230 --1.qxp 8/28/00 1:56 PM Page 15 DRY OPERATION DRY operation NO Initial dry operation w8 YES Vane setting notch Vane initial setting YES w12 Room temperature is 18°C 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 20~21. w12 When room temperature is 18°C or below, the compressor cannot operate. When room temperature rises over 18°C, the compressor starts after a 3-minute time delay. w13 Compressor ON time is decided by room temperature. Refer to page 20~21. w14 In dry operation, compressor ON makes the fan speed LOW. Also, when the compressor OFF and the pipe temperature is 26°C or less, the fan stops, or when the compressor OFF and the pipe temperature is below 6°C, the fan speed changes to LOW mode. It is not possible to set the fan speed with the remote controller. 15 OC230 --1.qxp 8 8/28/00 1:56 PM Page 16 MICROPROCESSOR CONTROL 1. OUTLINE OF MICROPROCESSOR CONTROL Remote controller board INPUT to remote controller ● OFF-ON switching. ● COOL/DRY-FAN selector switching. ● Thermostat setting. ● TIMER mode selector-switching and Timer setting. ● HIGH-LOW fan speed switching. ● AUTO Vane selector (AIR DISCHARGE) switching. ● TEST RUN switching. ● CHECK mode switching. (Self diagnostic trouble shooting) ● Processes and transmits orders. OUTPUT to remote controller Remote controller ● LCD indicator FILTER CHECK MODE TEST RUN Non-polar, two-wire cable maximum length 500 meters (WIRED only) 12VDC Indoor unit WIRED REMOTE CONTROLLER (OPTION) Signal ADDRESS UNIT No. FUNCTION No. ˚C SELECTION No. AM PM FUNCTION AM TEST RUN PM CHECK TEMP. ON/OFF INPUT from indoor unit ● Room temperature thermistor (RT1) ● Pipe temperature thermistor (RT2) OUTPUT to indoor unit 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. WIRELESS REMOTE CONTROLLER ● Auto vane’s angle setting. ● Emergency stop. Non-polar two-wire cable Independent Control of Outdoor Unit Outdoor unit 12VDC ● Compressor protection device working ● Crankcase heater control ON-OFF. 1 2 16 OUTPUT to outdoor unit 1 2 ● Compressor and outdoor fan : ONOFF. OC230 --1.qxp 8/28/00 1:56 PM Page 17 2. INDOOR UNIT CONTROL 2-1 COOL operation <How to operate> 1 Press POWER ON/OFF button. ADDRESS UNIT No. FUNCTION No. ˚C SELECTION No. AM PM FUNCTION 2 Press the MODE button to display AM TEST RUN PM CHECK FILTER TEMP. CHECK MODE 3 Press the TEMP. button to set the desired temperature. ON/OFF TEST RUN NOTE: Set temperature changes 1°C when the button is pressed one time. Cooling 19 to 30°C WIRED REMOTE CONTROLLER (OPTION) or WIRELESS REMOTE CONTROLLER <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 ON Compressor OFF 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 discharge temperature minus the set temperature is 0°C or more, or lower than 1°C. 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 pipe temperature thermistor (RT2) reads 1°C or below after the compressor has been continuously operated for at least 16 minutes or more. When the pipe temperature rises to 10°C or above, the compressor will start in a 3-minute(w2) time delay. w2 When the pipe temperature is -1°C 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 1°C to -3°C. 17 OC230 --1.qxp 8/28/00 1:56 PM Page 18 5 Coil frost protection When indoor coil temperature becomes -15°C 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 -15°C 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 10 degrees airflow at the start-up of COOL operation. (a) Vane position set mode & swing mode. ( i ) Every time VANE button is pressed, setting will be changed . ( ii ) Airflow direction can be changed with VANE button. 1 Fan speed : LOW 10° 50° 60° SWING 50° 60° SWING 2 Fan speed : HIGH 10° 30° <VANE POSITION> 1 Fan speed : LOW 10 2 Fan speed : HIGH 50 10 60 30 50 60 AUTO RETURN As for the unit opreted with only wired remote controller, When 50 degrees or 60 degrees airflow is selected with the LOW fan speed in COOL operation, “1Hr” will appear right side of the air direction display. One hour later, the airflow direction returns to 10 degrees automatically and “1Hr” will disappear. If the airflow direction is set to 10 degrees during “1Hr” indication, the time counting for AUTO RETURN is cancelled. 18 OC230 --1.qxp 8/28/00 1:56 PM Page 19 (4) Detecting abnormalities in the outdoor unit After the compressor has been continuously operated for 3 minutes, if the difference between the pipe 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 : Pipe temperature is more than 5 degrees above room temperature. RANGE B : Pipe temperature is within 5 degrees either way of room temperature. RANGE C : Pipe temperature is more than 5 degrees below room temperature. Pipe temperature minus room temperature (degree) +5 0 -5 RANGE A RANGE B RANGE C 19 OC230 --1.qxp 8/28/00 1:56 PM Page 20 2-2 DRY operation ADDRESS UNIT No. FUNCTION No. ˚C SELECTION No. AM FUNCTION AM TEST RUN <How to operate> 1 Press POWER ON/OFF button. PM PM CHECK FILTER 2 Press the MODE button to display “ TEMP. CHECK MODE ” ON/OFF TEST RUN 3 Press the TEMP. button to set the desired temperature. NOTE: The set temperature changes 1°C when the or button is pressed one time. Dry 19 to 30°C WIRED REMOTE CONTROLLER (OPTION) WIRELESS REMOTE CONTROLLER <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 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 13-minute time delay To prevent overload, the compressor will not start within 3 minutes after stop. 2The compressor stops in check mode or during protective functions. 20 OC230 --1.qxp 8/28/00 1:56 PM Page 21 4The compressor will not start when the room temperature is below 18°C. The compressor starts intermittent operation when the power is turned ON with room temperature above 18°C. 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 28°C with thermostat ON, the compressor will operate for 6 more minutes and then stop for 3 minutes. ● If the room temperature thermistor reads above 26°C~28°C with thermostat ON, the compressor will operate for 4 more minutes and then stop for 3 minutes. ● If the room temperature thermistor reads 24°C~26°C with thermostat ON, the compressor will operate for 2 more minutes and then stop for 3 minutes. ● If the room temperature thermistor reads below 24°C 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 6°C or more, or the compressor is OFF and the pipe temperature is below 6°C. (a)During compressor OFF ● When the pipe temperature is 6°C or above, the indoor fan will stop. ● When the pipe temperature is below 6°C, 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 pipe temperature every 30 seconds. Fan control in DRY operation. Pipe temp. Fan 6°C or more STOP Below 6°C LOW All LOW Compressor OFF Compressor ON (3) Auto vane 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. 21 OC230 --1.qxp 8/28/00 1:56 PM Page 22 2-3 Auto vane control ADDRESS UNIT No. FUNCTION No. ˚C SELECTION No. AM PM FUNCTION AM TEST RUN PM <How to operate> To change the air flow direction, press VANE button. CHECK TEMP. FILTER CHECK MODE ON/OFF TEST RUN WIRED REMOTE CONTROLLER (OPTION) 1 2 3 4 10° 30° 50° 60° WIRELESS REMOTE CONTROLLER 1 10° 2 30° downward Available in COOL operation with fan speed on HIGH . Unavailable in DRY operation. If fan speed changes from HIGH to LOW during 30° downward airflow in COOL mode, the direction automatically changes to 10°. 3 50° downward 4 60° downward 5 swing Changes by pressing the VANE button. (1) COOL/DRY operation At the start-up of COOL or DRY operation, the airflow direction in automatically set to 10°. After, it can be changed to another direction with VANE button on the remote controller. <Auto return> When 50° or 60° airflow is set with fan speed in LOW, “1Hr” appears right side of the air direction. One hour later the direction changes to 10 degrees, automatically and “1Hr” disappears. (Only wired remote controller) 22 OC230 --1.qxp 8/28/00 1:56 PM Page 23 2-4 TIMER operation (1) WIRED REMOTE CONTROLLER (OPTION) <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 “ ” button to select AUTO STOP or AUTO START. 3. Press “ ” button to set desired time. Time setting is in 1 hour units for up to 24 hours. Each time HOURS button is pressed, set time increases by 1 hour. When HOURS button is pressed and held, the set time increases by 1 hour every 0.5 seconds. 4. To cancel the timer operation, press POWER ON/OFF button. FILTER CHECK MODE TEST RUN <Timer setting example> This setting will stop the air conditioner in 8 hours. With the lapse of time, time display changes in 1 hour units, showing remaining time. OFF (2) WIRELESS REMOTE CONTROLLER <How to operate> 1 Press the ON/OFF button to turn it ON. 2 Press the STOP or START button (TIMER SET). Time can be set while the following symbol is displayed. OFF timer : A ▼ , B is displayed. ON timer : A ,B is displayed. 3 Use the HR. and MIN. buttons to set the desired time. 4 Cancelling the timer. To cancel the OFF timer, press the STOP button. To cancel the ON timer, press the START button. B · ▼ ADDRESS UNIT No. FUNCTION No. A ˚C SELECTION No. AM PM FUNCTION AM TEST RUN PM CHECK 1 TEMP. ON/OFF START MODE FAN STOP VANE HR. MIN. 24 3 · It is possible to combine both OFF and ON timers. · Pressing the ON/OFF button of the remote controller during timer mode to stop the unit will cancel the timers. RESET 23 OC230 --1.qxp 8/28/00 1:56 PM Page 24 2-5 Test run (1) WIRED REMOTE CONTROLLER (OPTION) <Before test run> ● After installing, wiring, and piping the indoor and outdoor units, check for refrigerant leakage, looseness in power supply or control wiring, and mistaken polarity. ● Use a 500-volt megger to check the resistance between the power supply terminal block and ground to make sure that it is at least 1.0MΩ. Attention: Do not use the air conditioner if resistance is less than 1.0MΩ. Remote controller 1 Turn on main switch.12 hours before proceeding to step 2 to allow for crankcase heater operation. 2 Push the TEST RUN button twice and indication of TEST RUN will be shown on the liquid crystal display. 3 Press the blown out. 4 Push properly. 5 Check the operation of outdoor unit fans.This unit controls the rotation speed and performance capacity of fans. ln some cases,it may rotate at low speed as the condition of outside air requires and the speed will be kept unless the performance has become deficient. Therefore,when the condition of outside air demands,there may be such cases as the fan stops or rotates reversely. Please note that these symptoms are not malfunction. 6 After the check is finished leave the test run mode, push the power ON/OFF button. It can also be stopped by pushing the timer MODE button. TEST RUN TEST RUN button TEST RUN Display Indoor coil temperature code Display button, COOL/DRY to confirm that cool air is button LOW/HIGH to check that the fan speed changes *The above figure shows the state of TEST RUN at cooling operation. ●When a TEST RUN is started,the timer shall be set to 2 hours. The unit will automatically turn off after 2 hours. (2) WIRELESS REMOTE CONTROLLER 82 ADDRESS UNIT No. FUNCTION No. ˚C SELECTION No. BA AM PM FUNCTION AM TEST RUN PM CHECK 7 5 4 TEMP. ON/OFF START MODE 6 FAN STOP VANE HR. MIN. RESET 3 <Before test run> Measure an impedance between the power supply terminal block on the outdoor unit and the ground with a 500 V Megger and ". check that it is equal or greater than 1.0M" 1 Turn on the main power to the unit.. 2 Set the Nrm/Set selector switch (on the back of the controller)to <Set>. AThe FUNCTION , TEST RUN and CHECK begin to blink. 3 Press the MIN. button. B TEST RUN and current operation mode are displayed. 4 Press the MODE button to activate COOL mode, then check whether cool air in blown out from the unit. 5 Press the FAN button and check whether strong air is blown out from the unit. 5 Press the VANE button and check whether the auto vane operates properly. 7 Press the ON/OFF button to stop the test run. 8 After trial run is complete, set the Nrm/Set selector switch to <Nrm.> Note : Point the remote controller toward the inside unit’s receiver while steps 3 though 7 . It is not possible to run the unit in FAN or DRY mode. · · 24 OC230 --1.qxp 8/28/00 1:56 PM Page 25 (1) Pipe temperature code During the test run, the pipe 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. Code 1 2 3 4 5 6 7 8 Pipe temperature -40~2(1)°C 3(2)~10°C ~15°C ~20°C ~25°C ~30°C ~35°C ~40°C Code 9 10 11 12 13 14 15 Pipe temperature ~45°C ~50°C ~55°C ~60°C ~70°C ~90°C 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. 2-6 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. Emergency cooling 1 1 ON 2 Normal operation 1 2 SW3 1 • 2 OFF Microcessor 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. 25 OC230 --1.qxp 8/28/00 2:25 PM Page 26 2-7 Interlock with ventilation system (LOSSNAY) Mr. SLIM/LOSSNAY interlock operation is available by using the optional parts listed below. (1) System organization Relay box (PZ-12RB-E) Relay box Mr. SLIM LOSSNAY LOSSNAY Power supply Mr. SLIM Power supply Remote controller Remote display adapter (PAC-SA88HA-E) LOSSNAY control switch (PZ-05SLB2-E) Remote controller LOSSNAY control switch (PZ-05SLB2-E) (2) LOSSNAY models connectable to Mr. SLIM are: LGH-15RS-E, LGH-50RS-E LGH-25RS-E, LGH-80RS-E LGH-35RS-E, LGH-100RS-E (3) Required parts are: ● Relay box (PZ-12RB-E)…Contact capacity 10A ● Remote display adapter (PAC-SA88HA-E)…An optional part for Mr. SLIM ● LOSSNAY control switch (PZ-05SLB2-E)…For LOSSNAY individual operation (4) Operation 1LOSSNAY turns ON/OFF according to Mr. SLIM ON/OFF 2While Mr. SLIM is OFF, LOSSNAY individual operation is available by using the LOSSNAY control switch. When Mr. SLIM turns OFF with the LOSSNAY control switch at ON, LOSSNAY will continue to operate. (5) Wiring. 1When the LOSSNAY control switch is used 2When the LOSSNAY control switch is not used: Mr. SLIM Indoor controller board Remote controller Power supply for Mr. SLIM 220 240V AC Relay box (PZ-12RB-E) LOSSNAY Terminal block Terminal block A Connector CN51 B L N HIGH N GRN YLW ORN RED BRN ORN LOW RED 10m Insulation is needed Relay box (PZ-12RB-E) A B Connecting wire 0.13mm 2 or over Connecting wire solid wire, 1.6 or 2.0 (field supplied) 8 ORN L N WHT RED WHT N WHT Mr.SLIM CN51 12V DC YLW RED HIGH HIGH Circuit breaker 2 5 RED DAMPER 7 6 N L 4 N Power supply 220 240V AC ORN DAMPER WHT 3 1 Circuit breaker (field supplied) L Power supply N 50Hz 220 240V LOSSNAY Terminal block N L ORN LOW LOW PL HIGH N HIGH N DAMPER DAMPER DAMPER LOSSNAY control switch (PZ-05SLB 2-E) RED WHT RED ORN WHT NOTE: For further information, refer to the LOSSNAY technical & service manual. Junction box (field supplied) 26 OC230 --1.qxp 8/28/00 1:56 PM Page 27 2-8 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) Not for use. SW18-5) OFF:For models with heat pump. ON :For models with cooling only. SW18-6~8) Not for use. 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 with heat pump SW1-2) Not for use. SW1-3) Switch to change the temperature to start coil frost prevention OFF:1°C ON :-3°C SW1-4) Not for use. SW1-5) Not for use. SW1-6) Not for use. 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 for use. 27 OC230 --1.qxp 8/28/00 1:56 PM Page 28 (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 36. ON OFF (3) SW3 (Emergency operation switch) Normal operation For emergency cooling 1 2 ON OFF 1 2 ON OFF (4) SW5 (Model selector) 1 2 3 4 ON OFF SW5-1) Not for use. SW5-2) OFF:For models with heat pump ON: For models with cooling only SW5-3) Not for use. SW5-4) Not for use. (5) SW6 (Address selector) Single control 1 2 3 4 SW6-1 OFF ON SW6-2 OFF OFF Twin control ON(Twin NO.1) ON(Twin NO.2) SW6-3 OFF OFF SW6-4 OFF OFF (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 PK-1.6GKL ON OFF PK-2GKL ON OFF 1 2 3 1 2 3 (7) SW8 1 2 3 4 5 6 ON OFF SW8-1~2) Not for use. SW8-3~4) Not for use. SW8-5) Not for use. SW8-6) OFF:For 240, 230V power supply ON: For 220V power supply (8) SW9 1 2 3 4 5 ON OFF SW9-1~5) Keep this switch. 28 OC230 --1.qxp 9 8/28/00 1:56 PM Page 29 TROUBLESHOOTING 1. TROUBLES IN TEST RUN Symptom Cause Check points The display “CENTRALLY CONTROLLED” on remote controller dose not disappear. 1) Wrong address setting of remote controller/indoor controller board. 2) Timer adapter is connected to the remote controller. 3) Signal transmission error between indoor unit and remote controller. 1) Check the address setting of remote controller and indoor controller. 2) Make sure the timer adapter is used correctly. 3) 1 Turn another remote controller’s DIP SW177 ON to make it sub controller. 2 Connect the sub controller to the unit, and turn circuit breaker ON. ● If the display “centrally controlled” disappears, replace the original remote controller. ● If the display remains the same, replace the indoor controller board. When remote controller POWER button is turned ON, the check code “EO”appears. 1) Signal transmission error between indoor unit and remote controller 1) 1 Connect a sub remote controller. 2 Turn circuit breaker ON. If the display “centrally controlled” remains, replace the indoor controller board. 3 If the display disappears, turn the remote controller POWER button ON and check as follows. Remote controller Sub remote controller 1 Operating Display EO Display 2 Operating Display Operating Display 3 No Display EO Display 4 No Display Operating Display Malfunction Malfunction of indoor Unit Malfunction of Remote controller Malfunction of indoor Unit and Remote Controller Malfunction of Remote controller When remote controller POWER button is turned ON, operating display appears, but disappears soon. 1) Short circuit of indoor/outdoor connecting wire 2) Short circuit of transmission wire. 3) 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. 29 OC230 --1.qxp 8/28/00 1:56 PM Page 30 2. SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER (WIRED REMOTE CONTROLLER (OPTION)) 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 (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 centralized control, turn OFF the ON/OFF button of centralized controller. Check button NOTE: The latest check code is memorized, even if the check mode is cancelled by the way mentioned above. It takes 60 seconds maximum to display the memorized check code. 2-2 How to use the self diagnostic function for service A. For normal control with one unit and one remote controller (1) Pressing the CHECK button on the remote controller twice starts the self diagnostic function. (2) During the self diagnostic function, “CHECK 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 page 32.) 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 TEMP. button or ▼ TEMP. button on the remote controller to advance or go back to the unit address. Each time ▲ TEMP. button is pressed, the unit address advances by one. Each time ▼ 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 “EO” means the following conditions: ● The unit address displayed on the remote controller does not apply to any unit. ● power is not supplied to the unit. ● Signal transmitting/receiving circuit is abnormal. (4) Check and repair the unit according to the check code. (Refer to page 32.) 30 OC230 --1.qxp 8/28/00 1:56 PM Page 31 (WIRELESS REMOTE CONTROLLER) (1) Turn on the main power of the unit. (2) Set the adjusting switch on the back of the wireless remote controller to “Set” then FUNCTION , TEST RUN and CHECK will start lighting. ★(3) Press the HR. button then CHECK will start blinking. ★(4) Send the signal from the remote controller to the unit with pressing HR. button. If the buzzer sound is heard are the ON/OFF lamp (Unit display) blinks, refer to the following table. Remove the battery cover on the back side of the wireless remote controller, display will start flashing when the “Set” switch is turned on. For operations marked “ ★ ”, point the transmitter to the wireless receiver, and make sure that you will hear a short beep from the receiver. Turn the adjusting switch to “Set” ADDRESS UNIT No. FUNCTION No. ˚C SELECTION No. AM PM FUNCTION AM TEST RUN The number of ON/OFF lamp (Unit display) blinking Buzzer sound PM CHECK TEMP. ON/OFF 1 second (0.5 second interval) Beep This corresponds to the number of buzzer sound START MODE The number of ON/OFF lamp (Unit display) blinking and buzzer sound Irregular point FAN STOP VANE HR. Display will start blinking MIN. ADDRESS RESET UNIT No. FUNCTION No. ˚C SELECTION No. 1(P1) Irregular intake sensor 2(P2) Irregular piping sensor AM PM FUNCTION AM TEST RUN PM CHECK 3(P3) Signal transmission error 4(P4) Irregular drain sensor 5(P5) Irregular drain pump 6(P6) Freezing protection is working 7(P7) System error 8(P8) Irregular outdoor unit TEMP. ON/OFF (Refer to the page 32 in detail.) When there is any error, receiving sound beeps. ★(5) Push the POWER ON/OFF button and cancel the test run. (6) After completing a test run, be sure to For operations marked “ ★ ”, point the transmitter to the wireless receiver, and make sure that you will hear a short beep from the receiver. When the other than main unit is operated by the wireless remote controller, the receiver beeps an ineffectual beep 3-times. 31 OC230 --1.qxp 8/28/00 1:56 PM Page 32 Check Diagnosis of malfunction Cause Check points code EO 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 “EO” is (Indoor controller does not wire still indicated, replace the indoor controller respond to remote controller 2) Signal transmitting/receiving cirboard. signal.) cuit is abnormal. If other check code appears. replace the original remote controller. P1 Abnormality of room temper- 1) Bad contact of thermistor ature thermistor (RT1) 2) Damaged thermistor 1) Check the thermistor. 2) Measure the resistance of the thermistor. Normal resistance should be as follows. 0: ···15kΩ 30:·····4.3kΩ 10:······9.6kΩ 40: ·····3.0kΩ 20:······6.3kΩ If the resistance is normal, replace the indoor controller board. P2 Abnormality of pipe temperature 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 ● Sub units in group control P6 Freezing protection is working. 1) Short cycle of air cycle 2) Dirty air filter 3) Damaged fan 4) Abnormal refrigerant 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) P8 Abnormality in outdoor unit 1) Wrong wiring of indoor/outdoor connecting wire 2) Reversed phase 3) Protection device is working 1) 2) 3) 4) Clear obstructions from the air cycle. Clean the air filter Check the fan. Check the refrigerant temperature. Check the address-setting. Check with another remote controller. If check code other than “P7” appears, replace the original remote controller. Check SW6 setting. 1) Check the indoor/outdoor connecting wire. 2) Change the connection of electric wiring. 3) Check the protection device. 3. WHEN OUTDOOR UNIT DOES NOT WORK Cause 1) Indoor/outdoor connecting wires are poorly connected. 2) Power supply is poorly connected. 3) Fuse (5A) in the outdoor controller board is blown. Check points 1) Check the connecting wires. 2) Check the power supply. 3) Check the fuse. 32 OC230 --2.qxp 8/28/00 1:58 PM Page 33 4. OTHER TROUBLES AND CAUSES Vanes do not work. Unit stops after 5 to 20 seconds operation Air discharge display is OFF and VANE 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 32. Indoor controller board deems the auto vanes are not attached to the unit. Horizontal angle can not be detected. 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. Beep sound is heard, but display is turned OFF. 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. Beep sound is not heard, and display remains OFF. Remote controller is damaged. Transmission wire is poorly connected “CENTRALLY CONTROLLED” is displayed. Transmission wire is damaged. Connector is poorly connected. Indoor terminal block is poorly connected. Remote controller terminal block is poorly connected. 5. MR. SLIM/LOSSNAY INTERLOCK OPERATION <Symptoms that are not malfunctions> If any of the following symptoms occur, they are not malfunctions. Symptom Cause LOSSNAY control switch does not work. LOSSNAY control switch can not work during interlock operation. LOSSNAY control switch is effective only while Mr. SLIM is not operating. LOSSNAY air speed can not be controlled in interlock operation. LOSSNAY fan speed is fixed to HIGH during interlock operation. LOSSNAY fan speed LOW/HIGH can be switched only during LOSSNAY individual operation with the LOSSNAY control switch. For LOSSNAY, troubleshooting refer to the LOSSNAY technical & service manual. 33 OC230 --2.qxp 8/28/00 1:58 PM Page 34 6. How to check the parts PK-1.6GKL , PK-2GKL Parts name Check points Room temperature thermistor (RT1) Pipe temperatuer thermistor (RT2) Disconnect the connector, then measure the resistance using a tester. (Surrounding temperature 10°C~30°C) Normal 4.3k'~9.6k' Abnormal Open or short Measure the resistance between the terminals using a tester. Fan motor (MF) Relay connector 3 Red C Black 1 Normal PK-GKL 1.6, 2 141.2' 131.5' Motor terminal or Relay connector 1 2 White (Refer to the thermistor) 3 Red-Black White-Black 5 Abnormal Open or short Protector Vane motor (MV) Orange Red M Brown-Yellow Brown-Blue Red-Orange Red-Pink Connector Blue Brown Pink Yellow 4 5 2 Measure the resistance between the terminals using a tester. (Surrounding temperature 20°C~30°C) 3 6 1 Normal Abnormal 186~214' Open or short <Thermistor Characteristic graph> Thermistor for lower temperature < Thermistor for lower temperature > 50 Room temperature thermistor(RT1) Pipe temperature thermistor(RT2) 40 Rt=15exp { 3480( 0: 10: 20: 25: 30: 40: 1 273+t Resistance (k") Thermistor R0=15k' ± 3% Fixed number of B=3480k' ± 2% 1 )} 273 30 20 15k' 9.6k' 6.3k' 5.2k' 4.3k' 3.0k' 10 0 34 -20 -10 0 10 20 30 Temperature (:) 40 50 OC230 --2.qxp 8/28/00 1:58 PM 10 Page 35 SYSTEM CONTROL 1. VARIETY OF SYSTEM CONTROL FUNCTIONS 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. 1 Group control with a single remote controller (See page 36.) Unit Unit Unit Remote controller 3 Both remote ON/OFF and individual controls (See page 37.) w Timer adapter (PAC-SA89TA-E) is needed. Optional adapter Relay box Unit Remote ON/OFF switch 4 Individual control by grouping remote controllers (See page 38.) 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 39.) w Multiple remote controller adapter (PAC-SA88HA-E) is needed. 6 Auto restart function (See page 39.) Unit Remote controll 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 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.) Circuit breaker Remote controller 35 OC230 --2.qxp 8/28/00 1:58 PM Page 36 2. GROUP CONTROL WITH A SINGLE REMOTE CONTROLLER A maximum of 50 units can be started in order according to the dip switch settings 2-1 How to wire Figure 1 To remote controller To next unit L N PE 1 2 3 Master unit electrical box To next unit L N PE 1 2 3 (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. Next unit electrical box The last unit dose not have this wire. Figure 2 2-2 How to set unit-address Master unit 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. 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. 36 5 6 OC230 --2.qxp 8/28/00 1:58 PM Page 37 3. 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 3-1 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 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 220/240V AC, ● Do not connect the control circuit wire to the remote controller cable directly. ● Do not place the control circuit wire and the remote controller cable into the same conduit tube. 3-2 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 37 OC230 --2.qxp 8/28/00 1:58 PM Page 38 3-3 Switch function of remote ON-OFF switch SW1 (Switches between remote ON and OFF.) ON (Start) OFF (Stop) SW2 (Switches between remote ON-OFF and individual control) ON OFF (Remote ON-OFF control) (Individual control) All units start together. w1 Each unit can be controlled by each Individual control is not available. remote controller. All units stop together. w2 Remote ON-OFF switch is not available. Individual control is not available. w1 After all units start together, if SW2 is turned OFF, each unit can be individually stopped by each remote controller. w2 After all units stop together, if SW2 is turned OFF, each unit can be individually started by each remote controller. 4. INDIVIDUAL CONTROL BY GROUPING THE REMOTE CONTROLLERS ● Grouping the remote controllers allows individual control and centralized monitoring of units installed in different places without a special control board. ● Remote control cables are extendible up to 500m. When the cable length exceeds 12m, 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. 38 Remote controller cable (2-core) Remote controller OC230 --2.qxp 8/28/00 1:58 PM Page 39 Indoor controller board 5. MULTIPLE REMOTE CONTROL DISPLAY You can control several units with a multiple remote control display, by wiring an optional multiple remote controller adapter (PAC-SA88HA-E) with relays and lamps on the market. Indoor controller board 5-1 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 > CN51 X2 YELLOW X1 ORANGE RED Electrical insulation is needed. BROWN 1 connector(5P) GL X2 GREEN 5 CN51 Optional multiple display adapter X1 RL Power supply Wiring at the actual place CN51 The maximum distance between indoor board and relay is 10m. [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> Power supply 3wires 3wires 3wires No.1 unit 2wires Remote controller cable Muitiple remote control ON-OFF display (Field supply) Remote controller No.2 unit No.3 unit Relay box (Field supply) Remote controller Remote controller (Operation check) <Wiring diagram> Power supply RL-1 X1-1 GL-1 X2-1 RL-2 X1-2 GL-2 X2-2 RL-3 X1-3 GL-3 X2-3 X1-1 X2-1 X1-2 1 Multiple remote controller adapter 5 No.1 unit 1 No.2 unit X2-2 X1-3 X2-3 Multiple Remote Control Display 5 1 5 No.3 unit connect to the connector CN51 Relay box 6. 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. 7. 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) 39 OC230 --2.qxp 11 8/28/00 1:58 PM Page 40 DISASSEMBLY PROCEDURE PK-1.6GKL PK-2GKL OPERATION PROCEDURE PHOTOS & ILLUSTRATION 1. REMOVE THE LOWER SIDE OF THE INDOOR UNIT FROM THE INSTALLATION PLATE. (1) Remove the left / right corner box of the indoor unit. (2) Hold and pull down the lower and both ends of the indoor unit, and remove the ▼ section from the square hole. (Refer to the figure 2.1) Or remove the front panel and push the ▼ section down by using hexagonal wrench ,etc. from the front side. (Refer to the figure 2.2). (3) Unhook the top of the indoor unit from the back plate catch. (Figure 1) Hook (Figure 2.1) (Figure 2.2) Hook Square hole Square hole Up Down (Figure 3) 2. REMOVING THE FRONT PANEL. (1) Open the front grille. (2) Remove the terminal block cover with a screw. (3) Remove the screw 3 caps then remove the set 3 screws. (4) After removing the lower side of the front panel a little, remove it as pulling toward upper. Terminal block cover Front grille (Photo 1) Front panel Set screws (Photo 2) 3. REMOVING THE INDOOR CONTROLLER BOARD. (1) Remove the terminal block cover. (2) Remove the front panel. (see the photo 1) (3) Remove the electrical box(2 screws). (4) Remove the electrical box cover(1 screw). (5) Disconnect the connector on the controller board and remove the controller board by pulling up the hook of the controller case. w To smooth works, hang the side hooks of the electrical box on the hook of the motor cover. (see the photo 3) Set screw Electrical box Motor cover Electrical box hook w Set screw (Photo 3) Control board Hook Controller case Electrical box 40 OC230 --2.qxp 8/28/00 2:29 PM Page 41 OPERATION PROCEDURE PHOTOS & ILLUSTRATION 4. REMOVING THE POWER BOARD (1) Remove the front panel.(see the photo 1) (2) Remove the electrical box(2 screws).(see the photo 2) (3) Disconnect the whole connector in the control board. (4) After lifting the controller case with pressing it’s convex section, remove the controller case and the control board simultaneously.(see the photo 3) (5) Disconnect the connector in the power board. (6) Remove the power board. (Photo 4) 5. REMOVING THE VANE MOTOR (1) Disconnect the connector CN6V on the indoor controller board. (2) Remove the 2 screws of the vane motor, disconnect the lead wire and remove the vane motor from the shaft. (Photo 5) Power board Electrical box Nozzle assembly Set screws Lead wire Vane motor 6. REMOVING THE THERMISTOR (1) Removing the room temperature thermistor RT1. 1Disconnect the connector CN20<red> on the indoor controller board. 2Remove the room temperature thermistor from the holder. (2) Removing the pipe temperature thermistor RT2. 1Disconnect the connector CN21<white> on the controller board. 2Remove the pipe temperature thermistor with set to the pipe. (Photo 6) Pipe temperature thermistor Room temperature thermistor Electrical box 7. REMOVING THE NOZZLE ASSEMBLY (1) Disconnect the connector CN6V on the controller board. (2) Disconnect the lead wire of the vane motor. (3) Remove the corner cover. (4) Pull the drain hose out from the nozzle assembly. (5) Unhook the hook of the lower nozzle assembly and pull the nozzle assembly toward you, then remove the nozzle assembly by sliding it down. (Photo 7) Hooks Nozzle assembly 8. REMOVING THE ELECTRICAL BOX (1) Remove the terminal block cover. (2) Remove the front panel.(see the photo 1) (3) Disconnect the vane motor connector. (4) Disconnect the fan motor connector from the fan motor. (5) Remove the pipe thermistor and the room temperature thermistor.(see the photo 6) (6) Remove the electrical box (2 screws). Drain hose Corner cover (Photo 8) Vane motor connector Pipe temperature thermistor Electrical box Fan motor connector 41 OC230 --2.qxp 8/28/00 1:59 PM Page 42 OPERATION PROCEDURE PHOTOS & ILLUSTRATION 9. REMOVING THE FAN MOTOR. (1) Remove the terminal block cover. (2) Remove the front panel.(see the photo 1) (3) Remove the electrical box.(see the photo 8) (4) Remove the nozzle assembly.(see the photo 7) (5) Remove the fan motor leg fixing 3 screws. (6) Unscrew the set screws using by alankey and remove it by sliding the fan motor to right. (7) Remove the 4 screws and remove the motor cover from the fan motor leg. (Photo 9) Motor cover Set screw Fan motor screws (Photo 10) Motor cover Fan motor 10. REMOVING THE LINE FLOW FAN (1) Remove the terminal block cover. (2) Remove the front panel.(see the photo 1) (3) Remove the electrical box.(see the photo 8) (4) Remove the nozzle assembly.(see the photo 7) (5) Remove the fan motor.(see the photo 9) (6) Remove the pipe fixture with 2 screws.(see the photo12) (7) Remove the left / right screws of the heat exchanger and pull the left-hand side up. (8) Remove the 2 screws by sliding it toward you remove the fixture(fixing bearing). w The fan motor is removable first , when the fan removing is hard. w When resetting the fan to the fan motor. Locate and fix the shaft after installing the fan. (Photo11) 11. REMOVING THE HEAT EXCHANGER (1) Remove the terminal block cover. (2) Remove the front panel.(see the photo 1) (3) Remove the electrical box.(see the photo 8) (4) Remove the corner box. (5) Remove the nozzle assembly.(see the photo 7) (6) Remove the 2 screws and the pipe fixture. (7) Remove the 2 screws and heat exchanger. (Photo 12) motor leg Heat exchanger Set screws Fixture(fixing bearing) Heat exchanger Set screw Pipe fixture 42 Set screws OC230 --2.qxp 8/28/00 1:59 PM Page 43 OPERATION PROCEDURE PHOTOS & ILLUSTRATION (Photo 13) 12. REMOVING the SIGNAL RECEIVING P.C. BOARD (1) Remove the terminal block cover. (2) Disconnect the connector <yellow> for the wireless remote Set screws controller. (3) Remove the front panel.(see the photo 1) (4) Remove the 2 screws and signal receiving p.c. board cover. (5) Remove the signal receiving p.c. board. Front panel Signal receiving p.c. board cover (Photo 14) Front panel Signal receiving p.c. board 43 OC230 --2.qxp 8/28/00 1:59 PM 12 Page 44 PARTS LIST PK-1.6GKL PK-2GKL 19 5 6 2 4 25 9 7 15 8 30 14 1 18 31 1 12 20 28 10 23 27 3 24 22 10 11 29 26 No. Parts No. Parts Name 1 T7W A01 762 FAN MOTOR 2 R01 07Y 114 LINE FLOW FAN Specifications PM4V30-K 16 21 17 13 Wiring RecomPrice Remarks Diagram mended Unit Amount 1.6GKL 2GKL (Drawing No.) Symbol Q'ty 1 1 MF PKH- 1 1 3 R01 07Y 105 RUBBER MOUNT 4 R01 07Y 106 BEARING SUPPORT 2 2 1 1 5 R01 005 103 SLEEVE BEARING 6 R01 07Y 102 BEARING MOUNT 1 1 1 1 7 R01 07Y 130 MOTOR SUPPORT 8 T7W E13 530 NOZZLE 1 1 1 1 9 T7W E06 202 PIPE TEMPERATUER THERMISTOR 10 R01 09Y 038 GUIDE VANE 11 T7W E13 223 VANE MOTOR 1 1 4 4 1 1 12 R01 07Y 527 DRAIN HOSE 13 T7W E12 310 INDOOR CONTROLLER BOARD 1 1 1 1 I.B 1 1 F1,F2 RT2 MV 14 T7W 520 239 FUSE 15 R01 07Y 524 DRAIN PLUG 250V 6.3A 1 1 16 T7W 521 716 TERMINAL BLOCK 17 R01 588 255 CAPACITOR 3P(L, N, ;) 1 1 TB2 2.0= ✕440V 1 1 C 18 T7W E05 202 ROOM TEMPERATURE THERMISTOR 19 T7W E67 480 HEAT EXCHANGER 1 1 RT1 1 1 20 T7W E02 313 POWER BOARD 21 T7W 512 716 TERMINAL BLOCK 1 1 P.B 1 1 TB4 1 1 10 10 24 R01 07Y 059 ARM 25 T7W A00 675 FAN GUARD 2 2 1 1 26 R01 50J 317 WIRERLESS ADAPTER CONTROLLER BOARD 27 — CONTROLLER COVER 1 1 1 1 (BG02V194H05) 28 — CONTROLLER CASE 1 1 (BG25B573H05) 29 — TERMINAL COVER 1 1 (BG02V195H10) 30 — ELECTRICAL PARTS COVER 1 1 (BG00V196G20) 31 — SENSOR HOLDER 1 1 (RG25C546H06) 22 R01 07Y 135 MOTOR COVER 23 R01 07Y 038 GUIDE VANE 2P(1, 2) 44 W.B OC230 --2.qxp 8/28/00 1:59 PM Page 45 STRUCTURAL PARTS PK-1.6GKL PK-2GKL 7 4 1 8 6 3 10 5 2 11 17 16 9 12 18 No. Parts No. Parts Name Specifications 1 R01 89Y 651 FRONT PANEL 2 R01 A16 500 AIR FILTER PK1.6 / 2 GKL 1 Remarks (Drawing No.) 13 3 5 R01 07Y 658 CORNER COVER 6 R01 07Y 635 BOX ASSEMBLY 1 7 R01 07Y 808 BACK PLATE 8 R01 07Y 623 UNDER COVER 1 9 R01 07Y 691 FRONT GRILLE 10 R01 07Y 092 VANE SLEEVE 1 11 R01 07Y 002 AUTO VANE 12 T7W E04 714 WIRELESS REMOTE CONTROLLER 13 T7W E01 049 WIRELESS REMOTE CONTROLLER DOOR 1 14 R01 07Y 050 BATTERY COVER 15 R01 07Y 075 WIRELESS REMOTE CONTROLLER HOLDER 16 R01 24K 658 RECEIVING UNIT 1 17 T7W E04 713 REMOTE CONTROLLER 18 T7W E03 049 REMOTE CONTROLLER COVER 1 1 1 1 1 1 1 1 1 1 45 15 Wiring RecomPrice Diagram mended Unit Amount Symbol Q'ty 2 3 R01 07Y 096 SCREW CAP 4 R01 09Y 658 CORNER COVER 14 RU OC230 --2.qxp 13 8/28/00 1:59 PM Page 46 OPTIONAL PARTS 1. REFRIGERANT PIPES Service Ref. : PK-1.6GKL, PK-2GKL Part No. Pipe length Pipe size O.D . Connection method PAC-05FFS-E 5m PAC-07FFS-E 7m Liquid:[9.52 Indoor unit: Flared PAC-10FFS-E 10m Gas:[15.88 Outdoor unit: Flared PAC-15FFS-E 15m Note 1. How to connect refrigerant pipes. Factory supplied optional refrigerant pipings contain refrigerant at the above atmospheric pressures. As long as the connection takes no more than 5 minutes, no air will enter, and there will be no need for air purging. Remove the blind caps and make the connections within 5 minutes. After the connections for the indoor and outdoor units are made, open the stop valve on the outdoor unit to allow refrigerant gas to flow. If piping length exceeds 20m, an additional charge of refrigerant is needed. Note 2. The following main parts are contained in the optional refrigerant piping kit. Heat insulating cover, vinyl tapes, nipples, sleeve and flange (for wall hole). 2. TIMER When using a program timer, PAC-SC32PTA, a program timer adapter (PAC-825AD) are and a wired remote controller (PAR-JA240KAT-E) also needed. Part No. PAC-SC32PTA (with set back function) Model Name 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 25°C Liquid crystal display Liquid crystal display Liquid crystal display 24 hours 30 minutes 48 / day 5V DC ±5% (Supplied by Remote Controller) 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-SC32PTA) Set back operation is useful for reducing running costs e.g. At a hotel with a 24-hour system 8:00~23:00 Cooling operation with set temperature at 26°C 23:00~8:00 Setback operation with 2 degrees of setback As shown in the chart on the night, the set temperature rises 2 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. 46 28˚C 26˚C 8:00 Normal operation 23:00 Setback operation 8:00 Normal operation OC230 --2.qxp 8/28/00 1:59 PM Page 47 2-3 How to connect program timer (1) Install the program timer next to the remote controller the same way as the remote controller is installed. (2) Connect the program timer and the remote controller with a 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 PROERAN TIMER PAC-SC32PTA 4 Use 5-wire cable Connect to CN1 Connect to CN1 2-4 Names and functions <PAC-SC32PTA> WEEKLY TIMER SETTING DISPLAY Used for selection of if or not the day operation pattern set by PATTERN SETTING is to be applied in weekly day unit, setting. CURRENT TIME DISPLAY During MONITOR status,current time is display. During Daily timer setting, a time desire for timer setting is displayed. SET BACK DISPLAY DAILY TIMER SETTING DISPLAY Indicates the setting 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 can be done in the range of 1,2,4,6 and 8°C. SET BACK SETTING SW SET SET/MONITOR DISPLAY SET MONITOR 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 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 PROERAN 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. 3. TIMER ADAPTER This adapter is needed for system control and for operation via external contacts. Adapter connection is described on page 37. Part No. PAC-SA89TA-E ORN 1 BRN 2 RED 3 47 OC230 --2.qxp 8/28/00 1:59 PM Page 48 4. MULTIPLE REMOTE CONTROLLER ADAPTER This adapter is needed for remote indication (operation/check). Adapter connection is described on page 39. Part No. PAC-SA88HA-E BRN RED ORN YLW GRN 1 2 3 4 5 5. CENTRALIZED REMOTE CONTROLLER Allows individual or combined control of up to 16 units. When using the PAC-805RC, the program timer adapter (PAC825AD)is also needed. Part No. PAC-805RC Unit:mm 5-1 Dimensions 113 56.5 12 11 23.5 POWER ON/OFF ENGAGED POWER ON/OFF ENGAGED GROUP DUAL CENTRAL CONTROLLER OPERATION BACK AHEAD ACTIVE BYPASS 1 2 3 4 5 6 7 8 9 10 DUAL CENTRAL GROUP SELECTION ACTIVE BYPASS PROGRAM TIMER DUAL CENTRAL CONTROLLER OPERATION BACK AHEAD ACTIVE BYPASS 113 ACTIVE BYPASS PROGRAM TIMER GROUP 8 GROUP SELECTION 117 1 2 3 4 5 6 7 8 9 10 DUAL CENTRAL MITSUBISHI ELECTRIC 10 9 8 7 6 5 4 3 2 1 117 5-2 Functions POWER ON/OFF switch Operation ON/OFF switch. "ENGAGED" indicator When this indicator is lit, transmission is in progress and all switches are inoperative. DUAL/CENTRAL switch This change-over switch governing the operation of the accessory remote controller. "DUAL" Instructions from both the accessory remote controller and the centralized remote controller are valid. (Priority given to the last instruction received.) ▲BACK ▼AHEAD buttons These buttons are used to designate the attached unit(s). (They designate the unit to be centrally controlled.) POWER ON/OFF ENGAGED GROUP 1 2 3 4 5 6 7 8 9 10 GROUP SELECTION ACTIVE BYPASS PROGRAM TIMER DUAL CENTRAL CONTROLLER OPERATION BACK AHEAD ACTIVE BYPASS DUAL CENTRAL MITSUBISHI ELECTRIC "CENTRAL" ON/OFF switching by the accessory remote controller is invalidated. Control is by the centralized remote controller only. Initial setting is "DUAL". LCD Matrix Display This display indicates the operational status of all connected units either by steady lighting or by flashing. ●When group “00” is designated; collective ON/OFF instruction is sent to all units. ●When group “01”-“16“ is designated; ON/OFF instruction is sent to the designated units only. ACTIVE/BYPASS switch This is a change-over switch for the program timer. (It selects timer operation on the program timer.) Use “BYPASS” when a program timer is not connected. “ACTIVE” The switch turns ON/OFF operational instructions from the program timer automatically. “BYPASS” ON/OFF Operation is by the centralized remote controller only. Initial setting is “BYPASS”. Independent “DUAL / CENTRAL” and “ACTIVE / BYPASS” setting of all the groups is possible. When the power supply to the centralized remote controller is cut due to power failure, all settings will return to original “DUAL” and “BYPASS”. 48 OC230 --2.qxp 8/28/00 1:59 PM Page 49 5-3 Connection method (1) Connections in the power supply cord. 1. Connect the power supply cord to the power supply terminal-block and fix it in-place with a tie-wrap. Connect a single phase 200V AC (220, 230, 240V) to L N . As E is the GND terminal, be sure to ground the earth wire. 2. Connect the transmission line to the transmission terminal-block and fix it in-place with a tie-wrap. Use a Ω1.6 (AWG 14) or above two-wire cable for the transmission line. CAUTION : Never connect the power supply cord to the transmission terminal-block. TERMINAL-BLOCK FOR TRANSMISSION TERMINAL-BLOCK OF POWER SUPPLY Transmission L T N 240 (Y) (O) 230 220 (R) 200 E (W) (BR) Tie-wrap 5A TRANSFORMER Fuse(5A) L POWER SUPPLY N Tie-wrap E Wiring has to be changed when a 200,230 or 240V power is used. (2) Connection method of centralized remote controller and power supply board. 1. Connect the centralized remote controller and power supply board with a non-polar, two-wire cable. Power supply board box To adaptor's terminal-block POWER ON/OFF ENGAGED GROUP 1 2 3 4 5 6 7 8 9 10 GROUP SELECTION ACTIVE BYPASS PROGRAM TIMER DUAL CENTRAL CONTROLLER OPERATION BACK AHEAD ACTIVE BYPASS DUAL CENTRAL 10 9 8 7 6 5 4 3 2 1 Centralized remote controller To adaptor's terminal-block Non-polar, two-wire cable 2. Wiring diagram 3. Be sure to set the maximum address number with the dip switch SW17 on the centralized remote controller. POWER ON/OFF ENGAGED GROUP 1 2 3 4 5 6 7 8 9 10 Centralized remote controller GROUP SELECTION ACTIVE BYPASS PROGRAM TIMER DUAL CENTRAL CONTROLLER OPERATION BACK AHEAD ACTIVE BYPASS DUAL CENTRAL Power supply board 10 9 8 7 6 5 4 3 2 1 49 Dip switch SW17 OC230 --2.qxp 8/28/00 1:59 PM Page 50 6. PROGRAM TIMER ADAPTER This adapter is needed when a program timer(PAC-SC32PTA)or a centralized remote controller(PAC-805RC)is used. Part No. PAC-825AD 6-1 Parts included 1 ADAPTER ·························1P 2 3-core cable···························1P 3 3-core cable···························1P Length : 2m (6' 7") Length : 2m (6' 7") 4 4-core cable···························1P 5 5-core cable···························1P Length : 2m (6' 7") Length : 2m (6' 7") 6-2 Connection method Connection and wiring methods differ with the type of the indoor unit used. Confirm the type before carrying out the work. (1) Connections in the adapter box. 1. Connect the power supply cord to the terminal-block and fix it in-place with a tie-wrap. Connect a single phase 200V AC (220, 230, 240V) to L N . As E is the GND terminal, be sure to ground the earth wire. 2. Connect the transmission line to the transmission terminal-block and fix it in-place with a tie-wrap (when a centralized remote controller is being used). CAUTION : Never connect the power supply cord to the transmission terminal-block Fig.1 CN22 Dip switch (AG) CN1 CN21 CN51 CN30 CN42 CN50 CN40 L N Tie-wrap TERMINAL-BLOCK (W) FOR POWER SUPPLY Terminal block for E Tie-wrap Transmission cord SW1 TRANS Fuse(5A) tr ans m i s s i on to program timer or centralized remote controller T (B) (Y) 220 240 TRANS SW1 200 CN22 TERMINAL-BLOCK FOR TRANSMISSION Fig.2 5A L POWER SUPPLY N ; POWER SUPPLY CORD TRANSFORMER Wiring has to be changed when 200V power supply is used. (2) When the centralized remote controller is used, set the address number with the dip switch SW1 of the program timer adapter. 50 OC230 --2.qxp 8/28/00 1:59 PM Page 51 (3) Connections from adaptor Fig.3 To program timer or centralized remote controller Adaptor 200~240V AC CN30 CN50 3-core cable 2 5-core cable 5 CN51 Remote controller Indoor unit Max. length of each calbe is 10m. 6-3 Dimensions (Unit : mm) 40 27 18 65 120 ho 15 le 27 8 7 74 35 15 35 22 22 12 86 220 95 Fixing screw hole 4- 5.5 230 80 70 40 15 Fig. 4 2 2- 2.9 30 200 7. Wired remote controller and terminl bed for remote controller Part No. PAR-JA240KAT-E 8. Remote Sensor Part No. PAC-SE41TS-E 51 OC230 --2.qxp 8/28/00 1:59 PM Page 52 10. MULTI DISTRIBUTION PIPE FOR TWIN (50:50) SDD-50S-E Part No. Indoor unit Applicable Service Ref. : PK-1.6GKL, 2GKL Outdoor unit : PU-3,4 type 10-1 Parts included 1 Installation manual 2 Gas pipe This sheet 1 sheet 3 Liquid pipe 4 Pipe cover (Gas pipe) 1 pc 5 Pipe cover (Liquid pipe) 6 2-core cable (12m) 1 pc 1 pc 1 pc 1 pc 7 Joint pipe A 1pc B 1pc C 1pc D 1pc • The gas pipe 2 and liquid pipe 3 are specified as shown below. 2 Gas pipe 3 Liquid pipe Model indication ID {9.52 (indoor unit side) After cutting the pipe with the pipe cutter, deburr the pipe and clean off dirt and foreign materials. Tag ID {19.05 (outdoor unit side) ID {15.88 (indoor unit side) ID {9.52 (outdoor unit side) Combination of indoor/outdoor unit Distributor pipe model SDD-50S-E Outdoor unit Indoor unit PU-3 1.6 + 1.6 PU-4 2+2 The following items must be obtain locally in addition to the packed parts. a Heat insulating sealing tape. b Extension pipe for refrigerant pipe. 10-2 Pipe size and refrigerant pipe limits. Outdoor unit Pipe size (mm) Actual piping leng <m> Height deffence <m> (Note 1) Indoor ~ Indoor ~ Indoor ~ Indoor ~ No. of bend Outdoor unit side Indoor unit side Outdoor unit side Indoor unit side Outdoor Indoor Outdoor Indoor |B-CI= H=20m h=1m {15.88<5/8> {15.88<5/8> {9.52<3/8> {9.52<3/8> A+B= A+C= or less or less less than 8 {19.05<3/4> 30m or less 8m or less Gas side PU-3 type PU-4S type Liquid side Note1. The number of bends in the refrigerant pipe is respectively 8 or less in the range of <A+B> <A+C> Indoor unit side h Indoor unit Indoor unit B C H Outdoor unit Distribution pipe (Packed part) Outdoor unit side A 52 OC230 --2.qxp 8/28/00 1:59 PM Page 53 10-3 Pipe connection (1) Note the following during work: • Be sure to recheck the combination <Table1> and pipe size <Table2> of the outdoor/indoor units. • Observe the refrigerant pipe length limits and no of bend limits <Table2>. • Insert the refrigerant pipe (obtain locally) into the flared end of the distributior pipe (packed) until the former pipe stops. Use oxidization-free solder for connection when possible. • The installation of the distributor pipe (packed) is not regulated. • Take care to prevent dirt, foreign materials, etc., from entering the pipe when connecting the pipe. • After checking remove the tag from the liquid pipe 3. (2) Piping connection • When welding the piping, use the exclusive joint 7 as the diameters of the pipe on the outdoor unit side and the joint section differ. (Refer to the table on the right.) Joint pipe A / B Liquid side •Outdoor unit PU-3type, PU-4type ID {9.52 ID {15.88 / 19.05 Do not bend or expend any distributor pipe (Liquid pipe) Gas side •Outdoor unit PU-3type / PU-4type Joint pipe C 10-4 Heat insulating work Gas pipe Liquid pipe • Install the gas pipe 2 while aligning it with the pipe cover 4. Seal the joint area of the pipe cover 4 with heat insulating sealing tape (obtain locally). • Install the liquid pipe 3 while aligning it with the pipe cover 5. Seal the joint area of the pipe cover 5 with heat insulating sealing tape (obtain locally). Note: 1. Cover the entire refrigerant pipe (obtain locally) with heat insulating material If connercial heat insulating meterial is used, it must be 12mm or thicker. 2. As the pipe covers 4 and 5 will shrink slightly due to the high temperature, allow a lap when installing the heat insulating material. 10-5 Control wiring for indoor unit • Connect the control cables of the indoor units Nos. 1 and 2 with the enclosed 2-core cable (12m) 6. • Connect the 2-core cable 6 to the remote controller terminal in the electrical box of each indoor unit and tighten the screws. (The polarity is not designated.) Twin Setting Specifications of each control cable A 6 Enclosed with Prepared by site optional distributor pipe. (12m) Control cable Control circuit voltage 0.8mm or more Cable thickness Polarity Indoor unit No.1 Terminal block for control 1 2 SW6 Twin type OFF ON 4 32 1 No.2 unit OFF ON 4 32 1 Indoor unit No.2 CN40 connector Terminal block for remote controller 1 2 1 2 A Terminal block for control No.1 unit DC12V 0.3mm2 or more Not designated Terminal block for remote controller 1 2 C Enclosed with the optional remote controller. 1 Set DIP switch SW6. 2 Remove the short-circuit connector CN40. (Leave it connected to the No.1 unit.) Disconnect. Note 1: SW6 default settings are all OFF. Note 2: The short-circuit connector CN40 is connected by factory. c 6 Leave it connected. Remote controller Outdoor unit 53 OC230 --2.qxp 8/28/00 1:59 PM Page 54 OC230 --2.qxp 8/28/00 1:59 PM Page 55 OC230 --2.qxp 8/28/00 1:59 PM Page 56 HEAD OFFICE MITSUBISHI DENKI BLDG.MARUNOUCHI TOKYO100-8310 TELEX J24532 CABLE MELCO TOKYO cCopyright 2000 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD Issued in Aug. 2000. NO.OC230 325 Printed in Japan New publication, effective Aug. 2000 Specifications subject to change without notice