Mitsubishi Electric PKH-2GKLA Mr.Slim Technical & Service Manual Download Page 53 | Manualshive

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Symptom

LOSSNAY control switch does not work.

LOSSNAY air speed can not be controlled in interlock opera-
tion.

LOSSNAY control switch can not work during interlock opera-
tion.
LOSSNAY control switch is effective only while Mr. SLIM is not
operating.

LOSSNAY fan speed is fixed to HIGH during interlock opera-
tion.
LOSSNAY fan speed LOW/HIGH can be switched only dur-
ing LOSSNAY individual operation with the LOSSNAY control
switch.

Cause

For troubleshooting of LOSSNAY , refer to the LOSSNAY technical & service manual.

8. MR. SLIM/LOSSNAY INTERLOCK OPERATION

<Symptoms that are not malfunctions>

If any of the following symptoms occur, they are not malfunctions.

OC231A

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Summary of Contents for PKH-2GKLA Mr.Slim

Page 1: ...TS LIST 64 13 OPTIONAL PARTS 66 Indoor unit ON OFF Remote controller This manual does not cover the following outdoor units When servicing them please refer to the following service manual and this manual in a set Service Ref PUH 2VKA2 OC128 REVISED EDITION A PUH 2AKA1 TH A OC156 PUH 2NKA1 OC145 Indoor unit Model names Service Ref PKH 2GKLA PKH 2GKLA No OC231 REVISED EDITION A October 2012 Revisio...

Page 2: ...er than that specified Doing so may cause a burst an explosion or fire when the unit is being used serviced or disposed of Correct refrigerant is specified in the manuals and on the spec labels provided with our products We will not be held responsible for mechanical failure system malfunction unit breakdown or accidents caused by failure to follow the instructions OC231A ...

Page 3: ...h fan speed has been selected TEMP button SET TEMPERATURE button sets any desired room temperature display SET TEMP display indicates desired tempera ture set CLOCK display Displays the current time display Flashes when the current time is displayed TIMER display Displays when in timer operation or when set ting timer display Displays the order of timer operation display Displays whether timer is ...

Page 4: ...3 7 CFM Pa mmAq kW in in in in kg lbs kW A A kW kW m3 7 CFM in in in kg lbs kg lbs L PKH 2GKLA Cooling 5 500 18 800 2 27 0 07 0 33 0 40 2 20 9 86 Heating 6 250 21 300 2 29 0 07 0 33 0 40 2 22 9 95 PKH 2GKLA Single 50Hz 220 240V Munsell 0 70Y 8 59 0 97 Plate fin coil Line flow direct 1 0 030 9 12 318 424 0 direct blow Remote controller built in 36 43 20 13 16 990 39 235 9 1 4 340 13 3 8 16 35 PUH 2...

Page 5: ...Aq kW in in in in kg lbs kW A A kW kW m3 7 CFM in in in kg lbs kg lbs L PKH 2GKLA Cooling 5 400 18 400 2 25 0 07 0 33 0 40 2 18 9 77 Heating 6 100 20 800 2 26 0 07 0 33 0 40 2 19 9 81 PKH 2GKLA Single 50Hz 240V Munsell 0 70Y 8 59 0 97 Plate fin coil Line flow direct 1 0 030 9 12 318 424 0 direct blow Remote controller built in 36 43 20 13 16 990 39 235 9 1 4 340 13 3 8 16 35 PUH 2AKA1 TH A Single ...

Page 6: ... in in kg lbs kg lbs L PKH 2GKLA CoolingT1 T2 5 800 4 800 19 800 16 400 2 48 2 90 0 07 0 33 0 40 2 41 2 83 11 07 12 99 HeatingT2 6 250 21 300 2 52 0 07 0 33 0 40 2 45 11 2 PKH 2GKLA Single 60Hz 220V Munsell 0 70Y 8 59 0 97 Plate fin coil Line flow direct 1 0 030 9 12 318 424 0 direct blow Remote controller built in 36 43 20 13 16 990 39 235 9 1 4 340 13 3 8 16 35 PUH 2NKA1 Single 60Hz 220V 54 Muns...

Page 7: ... 0 63 0 51 0 91 0 79 0 67 0 55 0 99 0 87 0 75 0 63 1 00 0 95 0 83 0 71 P C 1 82 1 86 1 89 1 82 1 86 1 89 1 82 1 86 1 89 1 93 1 82 1 86 1 89 1 93 1 82 1 86 1 89 1 93 1 82 1 86 1 89 1 93 1 82 1 86 1 89 1 93 1 82 1 86 1 89 1 93 CA 5397 5752 6124 5397 5752 6124 5397 5752 6124 6511 5397 5752 6124 6511 5397 5752 6124 6511 5397 5752 6124 6511 5397 5752 6124 6511 5397 5752 6124 6511 SHC W 3184 2704 2143 3...

Page 8: ...4080 3658 4765 4838 4515 4122 P C 2 34 2 40 2 46 2 34 2 40 2 46 2 34 2 40 2 46 2 53 2 34 2 40 2 46 2 53 2 34 2 40 2 46 2 53 2 34 2 40 2 46 2 53 2 34 2 40 2 46 2 53 2 34 2 40 2 46 2 53 CA 4530 4852 5193 4530 4852 5193 4530 4852 5193 5552 4530 4852 5193 5552 4530 4852 5193 5552 4530 4852 5193 5552 4530 4852 5193 5552 4530 4852 5193 5552 SHC W 2673 2281 1818 3035 2669 2233 3397 3057 2648 2165 3760 34...

Page 9: ... 0 64 1 00 0 96 0 84 0 72 P C 1 80 1 84 1 87 1 80 1 84 1 87 1 80 1 84 1 87 1 91 1 80 1 84 1 87 1 91 1 80 1 84 1 87 1 91 1 80 1 84 1 87 1 91 1 80 1 84 1 87 1 91 1 80 1 84 1 87 1 91 CA 5299 5648 6012 5299 5648 6012 5299 5648 6012 6392 5299 5648 6012 6392 5299 5648 6012 6392 5299 5648 6012 6392 5299 5648 6012 6392 5299 5648 6012 6392 SHC W 3179 2711 2164 3603 3163 2645 4027 3615 3126 2557 4451 4066 3...

Page 10: ...59 3648 4678 4800 4486 4104 P C 2 32 2 38 2 44 2 32 2 38 2 44 2 32 2 38 2 44 2 51 2 32 2 38 2 44 2 51 2 32 2 38 2 44 2 51 2 32 2 38 2 44 2 51 2 32 2 38 2 44 2 51 2 32 2 38 2 44 2 51 CA 4447 4764 5099 4447 4764 5099 4447 4764 5099 5451 4447 4764 5099 5451 4447 4764 5099 5451 4447 4764 5099 5451 4447 4764 5099 5451 4447 4764 5099 5451 SHC W 2668 2287 1836 3024 2668 2243 3380 3049 2651 2181 3736 3430...

Page 11: ...C 10 15 2 HEATING CAPACITY CA Capacity W P C Power consumption kW Service Ref PKH 2GKLA Refrigerant piping length one way 5m 10m 15m 20m 25m 30m 35m 40m 45m 50m 1 00 1 00 1 00 1 00 1 00 1 00 0 998 0 995 Heating capacity correction factors 50Hz Outdoor unit PUH 2VKA2 15 20 25 CA 4 177 4 000 3 844 P C 1 54 1 66 1 76 CA 4 788 4 600 4 413 P C 1 70 1 84 1 96 CA 5 457 5 251 5 043 P C 1 88 2 02 2 16 CA 6...

Page 12: ...5 10 15 OUTDOOR W B C INDOOR D B C INDOOR D B C 15 20 25 25 20 15 TOTAL INPUT RATIO CAPACITY RATIO Heating 1 4 1 2 1 0 0 8 0 6 1 4 1 2 1 0 0 8 0 6 0 4 5 5 15 25 35 46 OUTDOOR D B C TOTAL INPUT RATIO CAPACITY RATIO INDOOR W B C INDOOR W B C 22 20 18 16 22 20 18 16 Cooling OC231A ...

Page 13: ...ting current A Input kW Current A Starting current A Indoor unit 240V 50Hz 1phase Outdoor unit 240V 50Hz 1phase Indoor unit 220V 60Hz 1phase Outdoor unit 220V 60Hz 1phase Service Ref Indoor unit Outdoor unit PKH 2GKLA PUH 2VKA2 Cool 5 400 2 19 0 07 0 33 0 40 2 12 9 83 43 6 150 2 21 0 07 0 33 0 40 Heat 2 14 9 93 43 6 250 2 29 0 07 0 33 0 40 Cool 5 500 2 27 0 07 0 33 0 40 2 20 9 86 45 Heat 2 22 9 95...

Page 14: ...ng Heating 5 400 2 25 6 100 2 26 0 33 0 33 9 77 9 81 92 95 51 54 4 4 5 5 27 20 19 15 11 9 44 35 7 24 6 0 70 0 12 1 50 1 50 240 240 PUH 2AKA1 TH A C C C C BF SHF C D B D B W B D B W B C C C m MPa kg cm2 MPa kg cm2 Outdoor side Indoor side Refrigerant circuit Electrical circuit Total Air flow m3 min Air speed m sec Coverage range m ft PKH 1 6GKLH PKH 1 6GKL PKH 2GKLA 12 5 3 10 32 8 12 5 3 10 32 8 It...

Page 15: ...G FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 002 MICRO BAR BAND CENTER FREQUENCIES Hz PKH 2GKLA Hi NOTCH Lo 43 SPL dB 36 LINE 6 NOISE CRITERION CURVES UNIT WALL 1m 1m MICROPHONE Ambient temperature 27 Test conditions are based on JIS Z8731 OC231A ...

Page 16: ...f installation plate 49 5hole for tapping screw Knockout hole for right rear piping Right rear piping hole Unit center 14 14hole Knockout hole for 425 420 170 190 210 230 0 322 0 35 55 80 130 190 230 272 310 0 35 95 150 205 260 320 345 495 20 75 135 190 245 300 360 405 495 32 0 1 Sleeves are available on the market 2 This size shows the lower end of through hole 90 100 90 Through hole Sleeve 1 2 M...

Page 17: ...17 17 5 WIRING DIAGRAM PKH 2GKLA The black square indicates a switch position OC231A ...

Page 18: ...NT SYSTEM DIAGRAM PKH 2GKLA PUH 2VKA2 PUH 2AKA1 TH A Unit mm 4 Way valve solenoid coil Heating ON Cooling OFF PKH 2GKLA PUH 2NKA1 Indoor heat exchanger Indoor unit Refrigerant pipe option 15 88mm 5 8 with heat insulator Refrigerant pipe option 9 52mm 3 8 with heat insulator Flexible tube Flared connection Ball valve Strainer Ball valve with Service port Oil separator 4 way valve Service port Servi...

Page 19: ...or side Fan STOP Auxiliary heater OFF Compressor OFF Fan STOP Four way valve OFF MAIN OPERATION 1 In addition the centralized control and remote control can be operated 2 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 P6 Coil frost overheat protection P7 Sy...

Page 20: ...rotection detection temperature 1 C or lower YES NO 6 minute time delay 3 minute time delay Coil frost prevention release Allowance period 6 minute time delay Allowance set 1 min continue Coil frost protection FAN speed LOW FAN speed LOW 5 min elapse Outdoor unit trouble COOLING OPERATION 8 When operation stops or changes to cooling or dry mode the auto vane turns to a horizontal angle If operatio...

Page 21: ...elapse FAN SPEED Low FAN SPEED Low 2 min elapse FAN SPEED setting notch Hot adjust release PKH GKLA Type 3 minute Auxiliary heater OFF Pipe temperature thermistor is 60 C or higher FAN speed Low notch Airflow 10 up FAN setting notch Auto COOL HEAT operation Initial mode T1 To COOL mode HEAT mode COOL mode T1 To 2 After 15min T1 To 2 COOL operation HEAT operation 1 1 T1 To 2 After 15min T1 To 2 HEA...

Page 22: ...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 DRY OPERATION DRY operation Four way valve OFF Initial dry operation Room temperature is 18 C or lower During compressor ON Compressor thermostat ON Vane initial setting Vane setting notch 10 minute compressor OFF timer start Compressor OFF Fan STOP 3 minute time delay 10 m...

Page 23: ...agnostic function Independent Control of Outdoor Unit OUTPUT to indoor unit INPUT from indoor unit INPUT to remote controller Remote controller board Processes and transmits orders OUTPUT to remote controller 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 S...

Page 24: ...DOOR UNIT CONTROL 2 1 COOL operation 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 min...

Page 25: ...regardless of the thermostat ON OFF ii Fan speed will remain on LOW if an abnormality in outdoor unit is detected 5 minutes When the abnormality detection is released the fan speed returns to the set speed 1Start up of outdoor unit abnormality detection 2Release of outdoor unit abnormality detection 3Unit stop due to outdoor unit abnormality with P8 indication NOTE 1 Fan stops immediately if the u...

Page 26: ...ON 1 Fan speed LOW 2 Fan speed HIGH As for the unit operated 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 Only weird remote controller One hour later the airflow direction returns to 10 degrees automati cally and 1Hr will disappear If the airflow direction is set ...

Page 27: ...sor 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 differ ence 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 tha...

Page 28: ...peed LOW speed ON ON OFF OFF CLOSE CLOSE OFF OFF OFF Operation starts by P OWE R b ut ton ON Operation stops by POWER button OFF Room temperature becomes equal to set temperature Room temperature rises above set temperature How to operate 1 Press POWER ON OFF button 2 Press the MODE button to display e 3 Press the i TEMP button to set the desired temperature NOTE The set temperature changes 1 C wh...

Page 29: ... more min utes 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 op...

Page 30: ...C Display in HEAT operation STANDBY The STANDBY symbol is displayed from heating operation start until the heated air begins to blow and during the defrost operation ON OFF CHECK ADDRESS UNIT No FUNCTION No SELECTION No AM PM AM PM TEST RUN FUNCTION C TEMP 1 Compressor control 13 minute time delay To prevent overload the compressor will not start within 3 minutes after stop 2The compressor runs wh...

Page 31: ...itially the indoor fan runs on EXTRA LOW speed When 5 minutes have passed or the pipe temperature exceeds 35 C the fan speed changes to LOW Two minutes later the hot adjustment ends Then the fan speed depends on the remote controller setting The indoor fan stops when the pipe temperature is within 5 degrees either way of room temperature To eliminate the remaining heat the indoor fan runs for the ...

Page 32: ...djustment if the temperature difference is still in RANGE C the outdoor unit is determined to be abnormal When RANGE B does not change to RANGE A after 20 minutes have passed since RANGE C had outdoor unit is deter mined to be abnormal iii During compressor OFF Not detecting abnormalities 5 Pipe thermistor abnormality detection An abnormality can be detected during compressor ON except for the fol...

Page 33: ...follows Mode change HEAT COOL When room temperature becomes 2 degrees above the set temperature the operation mode can not be changed for 15 minutes degree To 2 To Set temperature 19 28 To 1 To To 1 To 2 Compressor Start HEAT mode HEAT mode Mode change 15 minutes 15 minutes Minimum 3 minutes COOL mode COOL HEAT ON OFF 9 0 10 20 30 40 46 8 5 Cooling range Outside air temperature Heating range 5 How...

Page 34: ...ion depends on the setting of the last operation After it can be changed to another direction with VANE button The discharge direction shifts to 10 regardless of the remote controller settings under any of the following conditions Thermostat OFF Defrosting Indoor fan speed EXTRA LOW in hot adjustment Available in COOL operation with fan speed on HIGH or in HEAT operation Unavailable in DRY operati...

Page 35: ...the back of the controller to Set A The 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 operat...

Page 36: ...rking release the protective function before starting the emergency operation CAUTION When the self diagnostic function indicates a check code of P5 drain pump malfunction DO NOT start the emergency operation because the drain may overflow How to operate 1 For emergency cooling set the dipswitch SW3 1 to ON and SW3 2 to OFF For emergency heating set the dipswitch SW3 1 2 to ON 2 Turn ON the outdoo...

Page 37: ...ed Connecting wire 0 13mm or over Circuit breaker field supplied Connecting wire solid wire 1 6 or 2 0 field supplied Power supply 220 240V AC Circuit breaker WHT WHT N DAMPER DAMPER RED LOW HIGH ORN WHT WHT RED RED ORN YLW ORN RED PZ 12RB E Relay box Remote controller Indoor controller board A GRN YLW ORN RED BRN B L N HIGH N 1 5 2 6 7 4 3 8 PZ 12RB E L N L N Power supply for Mr SLIM 220 240V AC ...

Page 38: ...t for use SW1 3 Switch to change the temperature to start coil frost prevention OFF 1 C ON 3 C SW1 4 Switch for set temperature adjustment in HEAT mode During HEAT operation warm air collects near the ceiling When the indoor unit is installed near the ceiling the temperature read by room temperature thermistor differs from the actual living space temperature by about 4 degrees Therefore the room t...

Page 39: ...F 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 PKH 2GKLA 7 SW8 SW8 1 5 Not for use SW8 6 OFF For 240 230V power supply ON For 220V power supply Triple control ON Triple NO 1 ON Triple NO 2 ON Triple NO 3 ON ...

Page 40: ...s again the compressor will stop running and the check mode will start 3 The protective function is memorized 4 The memory is cleared when the POWER ON OFF button on the remote controller is turned OFF However the check mode display continues until the outdoor unit receives the operation ON command from the indoor unit 3 4 COOL HEAT operation time chart 10 minutes 1 ON Thermostat Outdoor fan 4 way...

Page 41: ...tart a c The same as above a c in item A d Total time of compressor operation exceeds defrost interval Further information on the defrost interval is described in 3 C After the total time of compressor operation exceeds the defrost interval the thermostat repeats ON OFF three times Two minutes after the fourth ON of the thermostat if the outdoor coil thermistor reads 5 C or below and the fan outpu...

Page 42: ...2 When the compressor operates with the bypass valve at ON for more than 30 minutes the bypass valve turns OFF 3 When the compressor stops with the bypass valve at OFF the bypass valve turns ON and remains ON for three minutes Heating mode 1 When the unit starts for the first time after the circuit breaker has been turned ON or when it starts after the compressor OFF of 30 minutes or more if the o...

Page 43: ... 2 SW3 setting is changed 3 The compressor stops 4 Defrosting operation starts 3 Function of switches on the outdoor controller board SW1 Clears the check code memory push button switch SW2 Switches the output state indication and the check code display push button switch SW3 1 2 Switches the output state indication items dip switch For further information refer to page 48 4 100 fan output Fan out...

Page 44: ...ows When remote controller POWER button is turned ON operating display appears but disappears soon 1 Short circuit of indoor outdoor connect ing 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 m...

Page 45: ...Buzzer sound 1 second 0 5 second interval Beep The number of ON OFF lamp Unit display blinking This corresponds to the number of buzzer sound 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 t...

Page 46: ...n 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 fol...

Page 47: ...on of drain pump 1 Malfunction of drain pump 2 Damaged drain sensor P6 Freezing protection overheating protection is working 1 Short cycle of air cycle 2 Dirty air filter 3 Damaged fan 4 Abnormal refrigerant 1 Clear obstructions from the air cycle 2 Clean the air filter 3 Check the fan 4 Check the refrigerant temperature P7 System error 1 Wrong address setting 2 Signal transmitting receiving circu...

Page 48: ... state and check code alternate ly When SW2 is turned On with SW3 1 OFF and SW3 2 ON the compulsory defrosting starts SW3 Output state indication items depend on the combination of SW3 1 ON OFF and SW3 2 ON OFF Changed alternately by pressing SW2 SW3 1 SW3 2 LED Check code OFF OFF Outdoor coil thermistor is abnormal Input circuit on controller board is abnormal Open phase 63H2 function 51C functio...

Page 49: ...ompressor operation time indication SW2 is not available 3 4 Check code indication When a protection function works for the first time during operation the operation stops and restarts after the 3 minutes time delay mode When the protection function works again the operation stops Check mode When both SW3 1 and SW3 2 are OFF the check code is indicated If the outdoor controller board receives the ...

Page 50: ... function 51C was connected incor rectly 51C was working Check 51C the compressor and power supply LD6 Thermal switch 26C function 26C was connected incor rectly 26C is working Check 26C Check if refrigerant supply is low Check if the capillary tube is clogged LD7 Over heat protection The thermistor is broken Coil temperature is over 67 C Measure the resistance of the thermistor Check the outdoor ...

Page 51: ...ation stops 9 minutes later check code P8 appears on remote controller display HEAT OFF Operation stops ON Operation stops 27 minutes later check code P8 appears on remote controller display Outdoor Indoor 1 2 3 1 2 3 COOL OFF Outdoor unit stops ON Operation stops 9 minutes later check code P8 appears on remote controller display HEAT OFF Operation stops ON Operation stops 27 minutes later check c...

Page 52: ...r outdoor connect ing wire is connected incorrectly Indoor outdoor connect ing wire shorts Compressor protector is damaged Outdoor controller board is detective Remote controller is damaged Transmission wire is poorly connected Transmission wire is damaged Connector is poorly connected Indoor terminal block is poorly connected Remote controller ter minal block is poorly connected Vane motor is dam...

Page 53: ... SLIM is not operating LOSSNAY fan speed is fixed to HIGH during interlock opera tion LOSSNAY fan speed LOW HIGH can be switched only dur ing LOSSNAY individual operation with the LOSSNAY control switch Cause For troubleshooting of LOSSNAY refer to the LOSSNAY technical service manual 8 MR SLIM LOSSNAY INTERLOCK OPERATION Symptoms that are not malfunctions If any of the following symptoms occur th...

Page 54: ... White C Black Relay connector Protector Parts name Check points 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Thermistor for lower temperature Temperature Resistance k Thermistor Characteristic graph Room temperature thermistor RT1 Pipe temperature thermistor RT2 Thermistor R0 15k 3 Fixed number of B 3480 2 Rt 15exp 3480 0 15k 10 9 6k 20 6 3k 25 5 2k 30 4 3k 40 3 0k Thermistor for lower temperature 1 2...

Page 55: ...RALLY CONTROLLED is displayed on the LCD of the remote controller This is available for both one unit control and several units control 4 Individual con trol by grouping remote controllers See page 58 Unit Remote controller Unit Unit By grouping the remote controllers in one place several units installed at different locations can be controlled indi vidually and operation conditions of all units a...

Page 56: ...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 2 3 Unit control The rem...

Page 57: ...llers If one of the remote control lers is used for the self diagnostic function the other remote controller displays the check mode If the self diagnostic function is reset by either of the two remote controllers both remote controllers are reset 4 REMOTE ON OFF AND INDIVIDUAL REMOTE CONTROLS This method is available to control one unit or any number of units The following operations are availabl...

Page 58: ...d by each remote controller 2 After all units stop together if SW2 is turned OFF each unit can be individually started by each remote controller Grouping the remote controllers allows individual control and central ized monitoring of units installed in different places without a special control board Remote control cables are extendable up to 500m When the cable length exceeds 12m use the double i...

Page 59: ...te control display by wir ing an optional multiple remote controller adapter PAC SA88HA E with relays and lamps on the market 6 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 7 AUTO RESTART FUNCTION By setting the dip switch SW1 8 to ON the air co...

Page 60: ...ps then remove the set 3 screws 4 After removing the lower side of the front panel a little remove it as pulling toward upper 3 REMOVING THE INDOOR CONTROLLER BOARD 1 Remove the terminal block cover 2 Remove the front panel See 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...

Page 61: ...SEMBLY 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 Nozzle assembly Hook Drain hose Corner cover Pipe temperature thermistor Fan ...

Page 62: ...G THE HEAT EXCHANGER 1 Remove the terminal block cover 2 Remove the front panel See Photo 1 3 Remove the electrical box See Photo 8 4 Remove the corner box 5 Remove the nozzle assembly See Photo 7 6 Remove the 2 screws and the pipe fixture 7 Remove the 2 screws and heat exchanger Photo 12 Heat exchanger Set screw Pipe fixture Set screws Photo 9 9 REMOVING THE FAN MOTOR 1 Remove the terminal block ...

Page 63: ...e wireless remote controller 3 Remove the front panel See Photo 1 4 Remove the 2 screws and signal receiving P C board cover 5 Remove the signal receiving P C board OPERATION PROCEDURE PHOTOS ILLUSTRATION Set screws Front panel Signal receiving P C board cover Front panel Signal receiving P C board Photo 13 Photo 15 OC231A ...

Page 64: ...ER MOUNT BEARING SUPPORT SLEEVE BEARING BEARING MOUNT MOTOR SUPPORT NOZZLE ASSEMBLY PIPE TEMPERATURE THERMISTOR GUIDE VANE VANE MOTOR DRAIN HOSE INDOOR CONTROLLER BOARD FUSE DRAIN PLUG TERMINAL BLOCK CAPACITOR ROOM TEMPERATURE THERMISTOR HEAT EXCHANGER POWER BOARD TERMINAL BLOCK MOTOR COVER GUIDE VANE ARM WIRERLESS ADAPTER CONTROLLER BOARD CONTROLLER COVER CONTROLLER CASE TERMINAL COVER ELECTRICAL...

Page 65: ...MOTE CONTROLLER REMOTE CONTROLLER COVER 1 2 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 No Parts No Parts Name Specifications PKH 2GKLA Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty R01 89Y 651 R01 A16 500 R01 07Y 096 R01 10Y 658 R01 08Y 658 R01 07Y 635 R01 07Y 808 R01 07Y 623 R01 07Y 691 R01 07Y 092 R01 07Y 002 T7W E04 714 T7W E01 049 R01 07Y 050 R01 07Y 075 R01 24K 658 T7W E04 713 T7W E03 049 R...

Page 66: ... and outdoor units are made open the stop valve on the outdoor unit to allow refrigerant gas to flow If piping length exceeds 30m 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 ad...

Page 67: ...f S M T W enabling to set the week day Set back can be done in the range of 1 2 4 6 and 8 C WEEKLY TIMER SW Used for setting timer in day of week unit DAILY TIMER SW Used for timer setting in 30 minutes unit ON SET BACK OFF SW Used to specify the time setting pattern SET BACK SETTING SW Used for set back setting DAILY TIMER SETTING DISPLAY 24 hours is divided into 48 blocks and each block express ...

Page 68: ... connected units either by steady lighting or by flashing POWER ON OFF switch Operation ON OFF switch BACK AHEAD buttons These buttons are used to designate the attached unit s They designate the unit that is centrally controlled When group 00 is designated col lective ON OFF instruction is sent to all units When group 01 16 is designated ON OFF instruction is sent to the designated units only ACT...

Page 69: ...am BACK ACTIVE BYPASS POWER ON OFF DUAL CENTRAL AHEAD ENGAGED GROUP ACTIVE BYPASS GROUP SELECTION PROGRAM TIMER CONTROLLER OPERATION DUAL CENTRAL 1 2 3 4 5 6 7 8 9 10 10 9 8 7 6 5 4 3 2 1 Dip switch SW17 Centralized remote controller Power supply board 3 Be sure to set the maximum address number with the dipswitch SW17 on the centralized remote controller L N E T Y W R O BR 5A L POWER SUPPLY N E F...

Page 70: ...tion method Connection and wiring methods differ with the type of the indoor unit used Confirm the type before carrying out the work Part No PAC 825AD 2 When the centralized remote controller is used set the address number with the dipswitch SW1 of the program timer adapter L N E Dip switch Fig 1 Fig 2 CN22 TRANS T Y SW1 Terminal block for transmission to program timer or centralized remote contro...

Page 71: ...71 71 OC231A ...

Page 72: ...tributed in Oct 2012 NO OC231 REVISED EDITION A Distributed in Aug 2000 NO OC231 Made in Japan New publication effective Oct 2012 Specifications are subject to change without notice HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

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