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Mitsubishi Electric Mr.SLIM PKH-2.5FKA, Technical & Service Manual

The Mitsubishi Electric Mr.SLIM PKH-2.5FKA is a top-of-the-line air conditioning unit. Ensure a hassle-free installation with the comprehensive Installation Manual, available for free download from our website. Get all the necessary information and instructions to maximize the performance of your AC unit.

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77

No.

Part No.

Part Name

Specification

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

Unit

Amount

Q'ty / set

Price

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

DRAIN HOSE

AUTO VANE

ARM

GUIDE VANE

GUIDE VANE(WITH HANDLE)

VANE MOTOR

REMOTE CONTROLLER CABLE

ROOM TEMPERATURE THERMISTOR

PIPE TEMPERATURE THERMISTOR

TERMINAL COVER

FAN MOTOR CAPACITOR

INDOOR CONTROLLER BOARD

INDOOR CONTROLLER BOARD

FUSE

CONTROLLER COVER

CONTROLLER CASE

TRANSFORMER

TERMINAL BLOCK

TERMINAL BLOCK

TERMINAL BLOCK

MOTOR BAND

FAN MOTOR

MOTOR LEG

RUBBER MOUNT

MOTOR BAND

RIGHT LINEFLOW FAN

CENTER SUPPORT

SLEEVE BEARING

BEARING MOUNT

REMOTE CONTROLLER

REMOTE CONTROLLER

2.0

+

 440V

250V 6.3A

2P(1/2)

3P(1/2/3)

3P(L/N/

;

)

D094P40MS

(BG25H301H02)

(BG25J821H01)

(BG25J821H02)

(BG02J608H07)

(BG02A648G02)

(BG25B573H06)

(BG02H065H01)

(BG02A534H16)

(BG02H178H01)

(BG00R259G07)

1

2

3

16

4

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

2

3

16

4

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

2

3

16

4

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

2

3

16

4

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

Remarks

(Drawing No.)

R01 KV5 527

R01 12G 002

—

—

—

R01 12G 223

T7W 556 305

R01 06A 202

R01 22A 202

—

R01 588 255

T7W 503 310

T7W 71J 310

T7W 520 239

—

—

T7W 50J 799

T7W 512 716

T7W 517 716

T7W 509 716

—

R01 12G 220

—

R01 12G 105

—

R01 13G 115

—

R01 12G 103

R01 KV5 102

T7W 53J 200

T7W 418 200

PKH-2.5

PKH-3

FKA 

FKA

3

 

FKA

1

FKA

2

FKA 

FKA

3

 

FKA

1

FKA

2

1

2

3

16

4

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

2

3

16

4

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

MV

RT1

RT2

C

I.B

I.B

F1,2<I.B>

T

TB5

TB4

TB2

MF

R.B

R.B

OC132--3.qxp  1.11.8 10:44 AM  Page 77

Summary of Contents for Mr.SLIM PKH-2.5FKA

Page 1: ... PKH 2 5FKA PKH 2 5FKA2 PKH 2 5FKA3 PKH 3FKA PKH 3FKA2 PKH 3FKA3 PKH 4FKSA PKH 4FKSA2 PKH 4FKSA3 No OC132 REVISED EDITION A 2001 Indoor unit Wall Mounted Series PKH FILTER CHECK MODE CHECK TEST RUN REMOTE CONTROLLER PKH 2 5FKA3 PKH 3FKA3 and PKH 4FKSA3 are added in REVISED EDITION A Please void OC132 This manual does not cover outdoor units When servicing them please refer to the service manual No...

Page 2: ...3 PKH 4FKSA2 PKH 4FKSA3 NOSE shape has changed UNDER PLATE shape has changed TOP PLATE shape has changed DRAIN PAN shape has changed BOX ASSEMBLY shape has changed The specifications of these power supply voltages have been added 50Hz 220 230 240V 50Hz 380 400 415V ...

Page 3: ...e and stop time button Press this button to switch the cooler electronic dry dehumidify automat ic and heater modes i TEMP button This sets the room temperature The temperature setting can be per formed in 1 C units Setting range Cooler 19 C to 30 C Heater 17 C to 28 C CHECK TEST RUN button Only press this button to perform an inspection check or test operation Do not use it for normal operation F...

Page 4: ...efrost oper ation is performed CHECK display This indicates when a malfunction has occurred in the unit which should be checked Display This lamp lights when electricity is supplied to the unit 88 C display This displays the selected setting temperature r display The current time start time and stop time can be displayed in ten second intervals by pressing the time switch button The start time or ...

Page 5: ...A kW m3 X CFM Pa mmAq kW A in A in A in A in kg lbs A in A in A in A in A in kg lbs kg lbs kW A A kW kW m3 X CFM PKH 2FKA3 Cooling Heating 5 500 6 250 18 800 21 300 2 27 0 07 0 32 0 40 PKH 2FKA3 Single Phase 50Hz 220 230 240V Munsell 3 4Y 7 7 0 8 White Plate fin coil Line flow direct 1 0 030 10 13 353 459 0 direct blow Remote controller built in 36 43 20 13 16 1 250 49 3 16 200 7 7 8 300 11 13 16 ...

Page 6: ... in A in A in A in kg lbs A in A in A in A in A in kg lbs kg lbs kW A A kW kW m3 X CFM PKH 2 5FKA2 PKH 2 5FKA3 Cooling Heating 6 500 7 200 22 200 24 600 2 56 0 095 0 44 0 80 PKH 2 5FKA2 PKH 2 5FKA3 Single Phase 50Hz 220 230 240V Munsell 3 4Y 7 7 0 8 White Plate fin coil Line flow direct 2 0 040 15 20 530 706 0 direct blow Remote controller built in 39 45 20 13 16 1 400 55 1 8 235 9 1 4 340 13 3 8 ...

Page 7: ...3 Cooling Heating 7 900 9 100 27 000 31 000 3 25 0 095 0 44 0 80 PKH 3FKA2 PKH 3FKA3 Single Phase 50Hz 220 230 240V Munsell 3 4Y 7 7 0 8 White Plate fin coil Line flow direct 2 0 040 15 20 530 706 0 direct blow Remote controller built in 39 45 20 13 16 1 400 55 1 8 235 9 1 4 340 13 3 8 26 57 PUH 3VKA2 PUH 3VKA3 PUH 3YKA2 PUH 3YKA3 PUH 3YKA4 Single Phase 50Hz 220 230 240V 3Phase 50Hz 380 400 415V 4...

Page 8: ... A in A in A in A in kg lbs kg lbs kW A A kW kW m3 X CFM PKH 4FKSA2 PKH 4FKSA3 Cooling Heating 9 500 10 700 32 400 36 500 3 31 0 114 0 53 0 90 PKH 4FKSA2 PKH 4FKSA3 Single Phase 50Hz 220 230 240V Munsell 3 4Y 7 7 0 8 White Plate fin coil Line flow direct 2 0 070 22 28 777 989 0 direct blow Remote controller built in 41 46 20 13 16 1 680 66 1 8 235 9 1 4 340 13 3 8 30 66 PUH 4YKSA3 PUH 4YKSA4 3 50H...

Page 9: ... in mm in mm in kg lbs W D H INDOOR UNIT OUTDOOR UNIT REFRIGERANT PIPING Item Service Ref W Btu h kW kW A A kW A A kW kW K min CFM kW K min CFM mmAq Pa kW mm in mm in Liquid Gas PKH 2FKA3 Single 60Hz 220V Munsell 3 4Y 7 7 0 8 White Plate fin coil Line flow direct o 1 0 030 10 13 353 459 0 direct blow Remote controller built in 36 43 20 13 16 1 250 49 3 16 200 7 7 8 300 11 13 16 18 40 PUH 2NKA1 PUH...

Page 10: ... in mm in mm in kg lbs W D H INDOOR UNIT OUTDOOR UNIT REFRIGERANT PIPING Item Service Ref W Btu h kW kW A A kW A A kW kW K min CFM kW K min CFM mmAq Pa kW mm in mm in Liquid Gas PKH 2 5FKA2 PKH 2 5FKA3 Single 60Hz 220V Munsell 3 4Y 7 7 0 8 White Plate fin coil Line flow direct o 2 0 040 15 20 530 706 0 direct blow Remote controller built in 39 45 20 13 16 1 400 55 1 8 235 9 1 4 340 13 3 8 26 57 PU...

Page 11: ...mm in mm in mm in kg lbs W D H INDOOR UNIT OUTDOOR UNIT REFRIGERANT PIPING Item Service Ref W Btu h kW kW A A kW A A kW kW K min CFM kW K min CFM mmAq Pa kW mm in mm in Liquid Gas PKH 3FKA2 PKH 3FKA3 Single 60Hz 220V Munsell 3 4Y 7 7 0 8 White Plate fin coil Line flow direct O 2 0 040 15 20 530 706 0 direct blow Remote controller built in 39 45 20 13 16 1 400 55 1 8 235 9 1 4 340 13 3 8 26 57 PUH ...

Page 12: ... kg lbs W D H INDOOR UNIT OUTDOOR UNIT REFRIGERANT PIPING Item Service Ref W Btu h kW kW A A kW A A kW kW K min CFM kW K min CFM mmAq Pa kW mm in mm in Liquid Gas PKH 4FKSA2 PKH 4FKSA3 Single 60Hz 220V Munsell 3 4Y 7 7 0 8 White Plate fin coil Line flow direct o 2 0 070 22 28 777 989 0 direct blow Remote controller built in 41 46 20 13 16 1 680 66 1 8 235 9 1 4 340 13 3 8 30 66 PUH 4TKSA1 3 60Hz 2...

Page 13: ... 0 874 0 910 Indoor Intake air W B Service Ref PKH 2FKA3 PKH 2 5FKA2 PKH 2 5FKA3 PKH 3FKA2 PKH 3FKA3 PKH 4FKSA2 PKH 4FKSA3 16 18 20 22 16 18 20 22 16 18 20 22 16 18 20 22 CA 5 851 6 230 6 613 7 000 7 062 7 519 7 981 8 448 7 869 8 378 8 893 9 414 10 492 11 171 11 858 12 552 P C 2 00 2 04 2 07 2 11 2 41 2 46 2 51 2 55 2 90 2 96 3 02 3 07 3 41 3 47 3 54 3 61 20 CA 5 691 6 066 6 458 6 866 6 869 7 321 ...

Page 14: ...6 2 64 2 32 2 50 2 68 3 03 3 26 3 50 3 29 3 54 3 80 CA 8 000 7 693 7 473 9 216 8 863 8 609 11 648 11 201 10 881 13 696 13 171 12 794 P C 2 49 2 68 2 87 2 53 2 73 2 92 3 30 3 56 3 82 3 59 3 86 4 14 Service Ref PKH 2FKA3 PKH 2 5FKA2 PKH 2 5FKA3 PKH 3FKA2 PKH 3FKA3 PKH 4FKSA2 PKH 4FKSA3 15 20 25 15 20 25 15 20 25 15 20 25 CA 4 520 4 328 4 159 5 479 5 246 5 041 6 506 6 229 5 987 8 355 8 000 7 688 10 5...

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

Page 16: ...arting current A Service Ref Indoor unit Outdoor unit PKH 2FKA3 PUH 2VKA3 PKH 2 5FKA2 PUH 2 5VKA3 PUH 3VKA3 PKH 3FKA2 PUH 3YKA3 PUH 3YKA4 PKH 4FKSA2 PKH 2 5FKA3 PKH 3FKA3 PKH 4FKSA3 PUH 4YKSA4 PUH 2VKA2 PUH 2 5VKA2 PUH 3VKA2 PUH 3YKA2 PUH 4YKSA3 Indoor unit Outdoor unit Mode Capacity W Total Input kW Input kW Current A Starting current A Input kW Current A Starting current A Heat 7 150 2 30 0 095 ...

Page 17: ...SA2 PKH 4FKSA3 PUH 4TKSA1 PKH 3FKA2 PKH 3FKA3 PUH 3NKA1 PUH 3NKA2 PKH 4FKSA2 PKH 4FKSA3 PUH 4TKSA1 PKH 3FKA2 PKH 3FKA3 PUH 3NKA1 PUH 3NKA2 Service Ref Indoor unit Outdoor unit Indoor unit Outdoor unit Input kW Current A Starting current A Input kW Current A Starting current A Mode Capacity W Total Input kW Service Ref Indoor unit Outdoor unit Cooling 10 400 4 25 0 114 0 53 0 80 4 14 11 81 69 Cooli...

Page 18: ...ng 7 900 3 25 9 100 3 04 0 440 0 440 13 82 12 89 90 86 53 52 6 2 5 5 27 20 19 15 13 2 43 4 35 7 24 6 0 74 0 12 1 50 1 50 240 240 PUH 3VKA2 Cooling Heating 7 900 3 25 9 100 3 04 0 440 0 440 5 16 4 81 90 86 53 52 6 2 5 5 27 20 19 15 13 2 43 4 35 7 24 6 0 74 0 12 3 50 415 PUH 3YKA2 Cooling Heating 9 500 3 31 10 700 3 30 0 530 0 530 5 24 5 22 79 76 49 46 8 1 5 5 27 20 19 15 14 3 40 4 35 7 24 6 0 80 0 ...

Page 19: ...ooling 10 400 4 25 0 53 11 81 1 97 20 1 0 46 4 7 81 6 51 1 5 1 5 27 19 13 5 35 24 0 76 0 11 Heating 12 200 4 07 0 53 11 30 1 90 19 4 0 35 3 6 87 1 50 2 2 9 5 21 15 5 43 5 7 6 PKH 2FKA3 PKH 2FKA3 1 60 220 PUH 2NKA1 PUH 2NKA2 1 60 220 PKH 2 5FKA2 PKH 2 5FKA3 PKH 2 5FKA2 PKH 2 5FKA3 1 60 220 PUH 2 5NKA1 PUH 2 5NKA2 1 60 220 PKH 3FKA2 PKH 3FKA3 PKH 3FKA2 PKH 3FKA3 1 60 220 PUH 3NKA1 PUH 3NKA2 1 60 220...

Page 20: ...e Auto vanes Service panel for power supply connection 449 Air intake 968 Air intake 48 236 227 Right side Terminal block Right side Knock out hole for right piping 2 1 Knock out hole for night hand side piping Knock out hole for piping 8 60 Knock out hole for piping Terminal block for control Terminal block pipe position Drainage Drainage Flexible hole length 1200 Liquid pipe Gas pipe Lower side ...

Page 21: ...88 5 8F Liquid pipe A 30 32 39 98 37 74 4 39 100 30 37 74 4 29 80 280 30 30 184 30 60 10 39 37 65 100 A B C Knock out hole for piping 25 1110 183 240 B 1120 552 55 120 107 111 Air outlet 552 Air outlet Change vane manual Under panel Removable at left hand side piping Knock out hole for under piping Refrigerant pipe Drain pipe Rear piping opening Range for left rear piping opening 12 ø6 hole for ta...

Page 22: ... 39 98 37 74 4 39 100 30 37 74 4 29 80 280 30 30 184 30 60 10 39 37 65 100 A B C Knock out hole for wiring 25 1110 183 240 B 1400 55 120 102 111 694 Air outlet 694 Air outlet Change vane manual Under panel Removable at left hand side piping Knock out hole for under piping Refrigerant pipe Drain pipe Rear piping opening Range for left rear piping opening Range for left rear piping opening 12 ø6 hol...

Page 23: ...23 Unit mm inch 18 130 Rear side wiring arrangement opening 120 FILTER CHECK MODE TEST RUN 46 83 5 SW18 SW17 CHECK FILTER CHECK CHECK MODE TEST RUN CAUTION 2 REMOTE CONTROLLER ...

Page 24: ...ke wiring matching terminal numbers 5 Symbols used in wiring diagram above are Connector Terminal block 6 Emergency operation If remote controller of microcomputer fails but there is no other trouble emergency operation is possible by setting dip switch SW3 I B on the indoor con troller board Check items 1 Make sure that no other trouble exist the outdoor unit Trouble with the outdoor unit prevent...

Page 25: ...cy cooling should be limited to 10 hours maximum The indoor unit heat exchanger may freeze 6 After each operation set all dip switches SW3 I B to OFF BG79N621H01 fig w2 fig w1 240V 230V 220V 230V 220V YELLOW ORANGE RED 1 ON OFF 2 3 4 SW7 1 ON OFF 2 3 4 J9 2 CN2 OFF ON 4 3 2 1 SW18 8 7 LED1 12V POWER X4 C MF L N GRN YLW SW7 CN51 CENTRALLY CONTROL LED2 5V POWER 3 ON OFF TRANSMISSION WIRES DC12V 1 2 ...

Page 26: ...pass valve Outdoor unit PKH 2FKA3 PUH 2VKA2 PUH 2VKA3 PKH 2 5FKA2 PKH 2 5FKA3 PUH 2 5VKA2 PUH 2 5VKA3 PKH 3FKA2 PKH 3FKA3 PUH 3VKA2 PUH 3VKA3 PUH 3YKA2 PUH 3YKA3 PUH 3YKA4 Unit mm PKH 4FKSA2 PKH 4FKSA3 PUH 4YKSA3 PUH 4YKSA4 Indoor heat exchanger Indoor unit Refrigerant pipe option 19 05mm 3 4 with heat insulator Refrigerant pipe option 9 52mm 3 8 with heat insulator Flexible tube Flared connection...

Page 27: ...ck High pressure control switch Outdoor unit Outdoor heat exchanger Thermistor RT Capillary tube Restrictor valve Strainer Bypass valve Compressor Accumulator Ball valve with service port Refrigerant pipe option 9 52mm 3 8 with heat insulator Capillary tube Restrictor valve Distributor with strainer Thermistor RT2 Strainer Flared connection O D 4 0oI D 2 4 L600 O D 3 2oI D 2 0 L820 o2 O D 3 2oI D ...

Page 28: ...mpressor OFF Fan STOP Four way valve OFF w1 w2 w3 w4 w5 w6 w7 MAIN OPERATION 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 Indoor coil thermistor malfunction P4 Drain sensor malfunction P5 Drain overflow P6 Coil frost o...

Page 29: ...on 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 w8 w9 w10 w11 COOLING OPERATION 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...

Page 30: ...YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES w9 w11 w11 w11 w10 w16 w17 w11 Initial HEATING Defrosting Hot adjust in process Compressor ON Compressor thermostat ON Heating area Fan area 20 min elapse Fan area Heating area Fan area Cooling area Heating area Defrost 30 min elapse 10 minute compressor operation Indoor piping 55 C or lower Auxilia...

Page 31: ... 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 minute compressor OFF Compressor ON time set Compressor ON Fan speed LOW 1 Com...

Page 32: ...e heater control ON OFF Self diagnostic 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 opera...

Page 33: ...H 2 5 3 4 for J1 5 on indoor controller board the start temperature of coil frost prevention changes 1 C to 3 C How to operate 1 Press POWER ON OFF button 2 Press the button to display f 3 Press the i TEMP button to set the desired temperature NOTE The set temperature changes 1 C when the or button is press one time Cooling 19 to 30 C Minimum 3 minutes w1 ON Thermostat Indoor fan Auto vane Compres...

Page 34: ... changes to another mode 2 Indoor fan control Indoor fan speed LOW HIGH depends on the remote controller setting However if an outdoor unit abnormality is detected the indoor fan speed will be LOW regardless of the remote controller setting When the outdoor unit abnormality detection is released and the fan speed returns to the set speed the quiet cycle control will work a Normal control i Fan spe...

Page 35: ...N when the SWING mode is selected The vane motor is continuously ON during SWING mode When 60 degrees or 70 degrees discharge is selected with the LOW fan speed in COOL operation 1Hr will appear below the temperature display One hour later the discharge direction returns to 10 degrees automatically and 1Hr will disappear If the discharge direction is set to 10 degrees during 1Hr indication the tim...

Page 36: ...re settled at 200 pulse sec e Method of driving the auto vane 1 Detecting the standard position Output 1600 pulse to the opening direction 2 Position setting Output the number of pulse indicated no below chart to the closing direction 4 Detecting abnormalities in the outdoor unit After the compressor has been continuously operated for 3 minutes if the difference between the indoor coil temperature...

Page 37: ...ture becomes equal to set temperature Room temperature rises above set temperature w1 Even if the room temperature rise above the set temperature during this period the compressor will not start until this period has ended How to operate 1 Press POWER ON OFF button 2 Press the button to display e 3 Press the i TEMP button to set the desired temperature NOTE The set temperature changes 1 C when the...

Page 38: ...low 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 PKH 2 5 3 4 The indoor fan runs on LOW spe...

Page 39: ...t tem perature horizontal Minimum 3 minutes w2 w2 Even if the room temperature rise above the set temperature during this period the compressor will not start until this period has ended HEAT operation time chart How to operate 1 Press POWER ON OFF button 2 Press the button to display g 3 Press the i TEMP button to set the desired temperature NOTE The set temperature changes 1 C when the or button...

Page 40: ...r fan control a Normal control i The indoor fan runs on EXTRA LOW speed during the thermostat OFF EXTRA LOW speed can be changed to LOW or HIGH speed by setting the dip switch SW1 7 and SW1 8 PKH 2 5 3 4 for J1 7 J1 8 If the indoor coil temperature becomes more than 5 degrees below the room temperature dur ing the thermostat OFF the indoor fan will stop After when the indoor coil temperature becom...

Page 41: ...turn to RANGE B the outdoor unit is deemed abnormal If the temperature difference returns to RANGE B the next 20 minutes is an allowance period If the difference enter RANGE A during the allowance defrosting ends and the hot adjustment starts If the difference does not enter RANGE A during the allowance the outdoor unit is deemed abnormal 2 During compressor ON in hot adjustment After 30 minutes o...

Page 42: ...AUTO operation is available under the outside air temperatures as follows Mode change HEAT COOL When room temperature becomes2degrees 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 ...

Page 43: ...up of HEAT operation discharge direction depends on the setting of the last operation After it can be changed to another direction with 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 oper...

Page 44: ...FILTER CHECK MODE CHECK TEST RUN FILTER CHECK MODE CHECK TEST RUN TEST RUN button TEST RUN Indoor coil temperature code Display Display 1 2 4 5 6 3 Turn on main switch 12 hours before proceeding to step 2 to allow for crankcase heater operation Push the TEST RUN button twice and indication of TEST RUN will be shown on the liquid crystal display Push button LOW HIGH to check that the fan speed chan...

Page 45: ...on is working release the protective function before starting the emergency operation CAUTION When the self diagnostic function indicates a check code of P5 drain pump malfunction DO NOT start the emergency operation because the drain may overflow How to operate 1 For emergency cooling set the dip switch SW3 1 to ON and SW3 2 to OFF For emergency heating set the dip switch SW3 1 2 to ON Code Code ...

Page 46: ...lay box PZ 12RB E LOSSNAY LOSSNAY LOSSNAY control switch PZ 05SLB2 E LOSSNAY control switch PZ 05SLB2 E Mr SLIM Mr SLIM Remote controller Remote controller Remote display adapter PAC SA88HA E Power supply Power supply Junction box field supplied Mr SLIM 10m Insulation is needed Connecting wire 0 13mm or over Circuit breaker field supplied Connecting wire solid wire 1 6 or 2 0 field supplied WHT WH...

Page 47: ...mp works in only COOL operation ON The drain pump works in both COOL and HEAT operation SW1 5 Switch to change the temperature to start coil frost prevention OFF 3 C For previous special models ON 1 C For all current models SW1 6 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 tempera...

Page 48: ...riple NO 2 SW6 3 OFF OFF ON Triple NO 3 SW6 4 OFF OFF ON 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 2FKA3 1 2 3 ON OFF 3 On indoor controller board For PKH 2 5FKA2 PKH 2 5FKA3 PKH 3FKA2 PKH 3FKA3 PKH 4FKSA2 PKH 4FKSA3 1 J1 Mode selector 4 5 6...

Page 49: ...t abnormality detection Provided When an abnormality occurs it is detected Not provided Even if an abnormality occurs it can not be detected J1 10 Switch for auto restart function Provided This function does not work Not provided This function works J5 2 Original For models with heat pump Cut For models without heat pump J5 4 Do not cut this jumper wire for PKH 2 5FKA2 PKH 2 5FKA3 PKH 3FKA2 PKH 3F...

Page 50: ...ective function works again the compressor will stop running and the check mode will start 3 The protective function is memorized 4 The memory is cleared when the POWER ON OFF button on the remote controller is turned OFF However the check mode display continues until the outdoor unit receives the operation ON command from the indoor unit 3 4 COOL HEAT operation time chart 10 minutes 1 ON Thermost...

Page 51: ... 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 3 times Two minutes after the fourth ON of the thermostat if the outdoor coil thermistor reads 5 C or below and the fan out put is 100 defrosting will star...

Page 52: ...ve returns to OFF 2When the compressor operates with the bypass valve at ON for more than 30 minutes the bypass valve turns OFF 3When the compressor stops with the bypass valve at OFF the bypass valve turns ON and remains ON for three min utes Heating mode 1When the unit starts for the first time after the circuit breaker has been turned ON or when it starts after the compressor OFF of 30 minutes ...

Page 53: ... again 2SW3 setting is changed 3The compressor stops 4Defrosting operation starts 3 Function of switches on the outdoor controller board SW1 Clears the check code memory push button switch SW2 Switches the output state indication and the check code display push button switch SW3 1 2 Switches the output state indication items dip switch For further information refer to page 57 4 100 fan output Fan ...

Page 54: ...ars soon 1 Short circuit of indoor outdoor connect ing wire 2 Short circuit of transmission wire 3 Short circuit of drain sensor heater cir cuit 4 Wrong operation of remote controller due to noise wave emitted by other appliances 1 2 Check the wire 3 Measure the resistance of the drain sensor connector CN50 1 3 Normal resistance should be 82Ω 4 Turn the circuit breaker OFF and then turn ON If the ...

Page 55: ...c 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 mean...

Page 56: ...d P5 Malfunction of drain pump 1 Malfunction of drain pump 2 Damaged drain sensor 1 Check the drain pump 2 Check the drain sensor Check the drain sensor heater Normal resis tance should be 82Ω If the resistance is normal replace the indoor con troller board P6 Coil frost protection is work ing 1 Short cycle of air cycle 2 Dirty air filter 3 Damaged fan 4 Abnormal refrigerant 1 Clear obstructions f...

Page 57: ...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 LED LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 SW3 1 SW3 2 OFF OFF OFF OFF OFF ON ON OFF ON ON Blinking Reversed phase Open phase 63H2 function 51C function 26C func...

Page 58: ...ction works for the first time during operation the operation stops and restarts after the 3 minutes time delay mode When the protection function works again the operation stops Check mode When both SW3 1 and SW3 2 are OFF the check code is indicated If the outdoor controller board receives the compressor ON command from the indoor controller board during check mode the indication changes to outpu...

Page 59: ...unction 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 fa...

Page 60: ...Operation 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 che...

Page 61: ...ontroller board deems the auto vanes are not attached to the unit Horizontal angle can not be detected In this case remote controller is normal Power ON OFF button is not available Beep sound is heard but display is turned OFF Beep sound is not heard and display remains OFF CENTRALLY CONTROLLED is displayed Indoor outdoor connect ing wire is connected incorrectly Indoor outdoor connect ing wire sh...

Page 62: ...between the terminals using a tester Winding temperature 20 Fan motor MF Abnormal Open or short Red Black White Black Motor terminal or Relay connector PKH 2FKA3 154 3 162 0 PKH 2 5 3FKA2 3 99 5 103 9 PKH 4FKSA2 3 62 6 74 0 Normal Open or short Abnormal Brown Yellow Brown Blue Red Orange Red Pink Connector Normal 186 214 Measure the resistance between the terminals using a tester Surrounding tempe...

Page 63: ...ual control by grouping remote controllers See page 66 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 are visible without a special control board The control method is the same as that of the single unit with a single remote con troller 4 Multiple r...

Page 64: ...o 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 2 3 Un...

Page 65: ...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 Remote controller power supply of control circuit Remote ON OFF switch 2 wire...

Page 66: ... tralized 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 t...

Page 67: ...ated coil power con sumption below 0 9W Lamps Matching to power supply voltage CN51 connector 5P GREEN Power supply Electrical insulation is needed Local wiring Optional multiple display adapter The maximumdistance between indoor board and relay is 10m YELLOW ORANGE RED BROWN 5 X1 X1 RL GL X2 X2 1 Wiring Power supply Remote controller cable Relay box Field supply Remote controller Remote controlle...

Page 68: ... 3 Disconnect the connectors on the indoor controller board 4 To unhook the catches on the right hand side of the indoor controller board pull the left hand side toward you and lift up the cover to the right Then the indoor controller board can be removed 4 Removing the electrical parts box 1 Remove the right side panel 2 Remove the screw of the electrical parts box cover and remove the cover 3 Re...

Page 69: ...catch on the panel from the catch on the unit 2 Slide the left side panel to the left to remove the panel Note Fix the unit to the metal fixture securely 3 Remove the air filters 4 Hold and press the center cover to remove 5 Remove the screws of the grilles 6 Pull the lower side of the grille toward you and slide the upper to the right to remove the grilles 7 Removing the drain pan 1 Remove the le...

Page 70: ... left and right motor supports and remove the motor supports and the fan motor See Photo 9 8 Remove the screw of the center support and remove the support See Photo 10 9 Remove the 2 screws on the left and right sides of the heat exchanger and pull the bearing support toward you See Photo 11 10 Pull the left hand side of the heat exchanger toward you and remove the lineflow fan Photo 10 Screw Cent...

Page 71: ...PANEL PANEL CATCH UNDER COVER CORNER COVER BOX ASSEMBLY BACK PLATE 1 4 2 2 2 1 2 1 1 1 1 1 4 2 2 2 1 2 1 1 1 1 BC25R572H06 BC25G057H07 Remarks Drawing No R01 KV5 651 R01 47J 651 R01 KV5 096 R01 A20 054 R01 KV5 500 R01 47J 500 T7W 580 058 R01 KV5 623 R01 KV5 658 R01 KV5 635 R01 KV5 808 1 2 3 4 5 6 7 8 9 10 11 FKA1 FKA2 FKA3 FKA STRUCTURAL PARTS PKH 2FKA PKH 2FKA1 PKH 2FKA2 PKH 2FKA3 1 2 3 4 2 3 4 7...

Page 72: ...SEMBLY BOX ASSEMBLY DRAIN SOCKET BG00A593G71 RG00A734G29 1 1 1 4 2 1 1 1 1 1 1 1 1 4 2 1 1 1 1 1 1 1 1 4 2 1 1 1 1 1 1 1 1 4 2 1 1 1 1 1 Remarks Drawing No R01 12G 662 R01 12G 812 R01 E01 812 R01 12G 811 R01 E00 811 R01 A17 500 R01 12G 691 R01 12G 661 R01 12G 808 R01 E01 641 R01 12G 523 PKH 2 5 PKH 3 FKA 1 1 1 4 2 1 1 1 1 1 FKA 1 FKA 2 FKA 1 1 1 4 2 1 1 1 1 1 FKA3 FKA3 FKA1 FKA2 7 8 9 1 2 3 4 5 6 ...

Page 73: ...PANEL UNDER PLATE UNDER PLATE NOSE NOSE AIR FILTER INTAKE GRILLE RIGHT SIDE PANEL BACK PLATE TOP PLATE BOX ASSEMBLY BOX ASSEMBLY INTAKE GRILLE DRAIN SOCKET BG00A593G72 RG00A734G30 1 1 1 5 2 1 1 1 1 1 1 1 1 1 5 2 1 1 1 1 1 1 Remarks Drawing No R01 12G 662 R01 16G 812 R01 E00 812 R01 16G 811 R01 E01 811 R01 A17 500 R01 12G 691 R01 12G 661 R01 16G 808 R01 E00 641 R01 16G 692 R01 12G 523 PKH 4 FKSA 1 ...

Page 74: ...12 10 For PKH 2FKA PKH 2FKA1 MITSUBISHI ELECTRIC CENTRALLY CONTROLLED STAND BY DEFROST ON CHECK DRY COOL HEAT CHECK SET TEMP TIMER OFF AUTO STOP AUTO START C HR C LOW HIGH AUTO RETURN CHECK TEST RUN POWER ON OFF HEAT SET TEMPERATURE AUTO COOL DRY COOLER WARMER TIMER MODE HOURS FAN SPEED LOW HIOGH AIR DISCHARGE UP DOWN SWING STOP CHECK TEST RUN 16 For PKH 2FKA2 PKH 2FKA3 15 ...

Page 75: ...TOR SUPPORT FAN MOTOR RUBBER MOUNT MOTOR COVER HEAT EXCHANGER HEAT EXCHANGER DRAIN SOCKET 250V 6 3A 3P L N 2P 1 2 3P 1 2 3 2 440V PK4V30 KA 1 1 1 1 1 1 1 1 1 1 1 1 2 16 1 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 16 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 2 1 1 1 BG25B750H02 BG25M017H06 BG02B718H05 BG25D912H04 BG25F045H04 BG02A326G06 BG25B573H03 BG25B846H11 MV R B R B I B F1 I B TB2 TB...

Page 76: ... 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 76 1 2 3 35 34 4 33 5 6 8 9 10 7 11 12 13 14 15 16 17 26 25 24 18 19 20 21 30 28 29 31 27 22 23 36 FILTER CHECK MODE CHECK TEST RUN MITSUBISHI ELECTRIC CENTRALLY CONTROLLED STAND BY DEFROST ON CHECK DRY COOL HEAT CHECK SET TEMP TIMER OFF AUTO STOP AUTO START C HR C LOW HIGH AUTO RETURN CHECK TEST RUN POWER ON OFF HEAT SET TEMPERATURE AUTO COOL DRY COOLE...

Page 77: ...6 3A 2P 1 2 3P 1 2 3 3P L N D094P40MS BG25H301H02 BG25J821H01 BG25J821H02 BG02J608H07 BG02A648G02 BG25B573H06 BG02H065H01 BG02A534H16 BG02H178H01 BG00R259G07 1 2 3 16 4 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 2 3 16 4 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 2 3 16 4 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 2 3 16 4 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 Remark...

Page 78: ...KSA3 FKSA FKSA1 FKSA2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 3 35 34 4 33 5 6 8 9 10 7 11 12 13 14 15 16 17 26 25 24 18 19 20 21 30 28 29 31 27 22 23 36 FILTER CHECK MODE CHECK TEST RUN MITSUBISHI ELECTRIC CENTRALLY CONTROLLED STAND BY DEFROST ON CHECK DRY COOL HEAT CHECK SET TEMP TIMER OFF AUTO STOP AUTO START C HR C LOW HIGH AUTO RETURN CHECK TEST RUN POWER ON OFF HEAT SET TEMPERATURE AUTO COOL...

Page 79: ...LOW FAN CENTER SUPPORT SLEEVE BEARING BEARING MOUNT REMOTE CONTROLLER REMOTE CONTROLLER 3 0 440V 250V 6 3A 2P 1 2 3P 1 2 3 3P L N D10A4P70MS BG25H301H02 BG25J821H01 BG25J821H02 BG02J608H07 BG02A648G02 BG25B573H06 BG02H065H01 BG02A534H17 BG02H178H01 BG00R259G07 2 4 22 4 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 4 22 4 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Remarks Drawing No R01 16...

Page 80: ... setback As shown in the chart on the right the set temperature rises 2 degrees automatically during the setback operation When the setback operation ends normal operation will begin 3 Weekly timer function Daily timer function can apply to each day of the week 1 REFRIGERANT PIPES Service Ref PKH 2FKA3 PKH 2 5FKA2 PKH 2 5FKA3 PKH 3FKA2 PKH 3FKA3 Part No Pipe length Pipe size O D Connection method ...

Page 81: ...ss 30 minutes The block display consists of 3 pattern MONITOR Indicates the current timer set ting 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 Push SW to advance the time Each time the button is pushed the time advance by 1 minute pushing continuously advances by 1 minut...

Page 82: ...n this indicator is lit transmission is in progress and all switches are inoperative DUAL CENTRAL switch This change over switch governing the oper ation of the accessory remote controller DUAL Instructions from both the accessory remote controller and the centralized remote controller are valid Priority given to the last instruction received CENTRAL ON OFF switching by the accessory remote contro...

Page 83: ...entralized remote controller Non polar two wire cable To adaptor s terminal block Power supply board box 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 2 Connection method of centralized remote con...

Page 84: ... supply is used Tie wrap Transmission cord TRANSFORMER TERMINAL BLOCK FOR POWER SUPPLY TERMINAL BLOCK FOR TRANSMISSION SW1 CN22 CN1 CN21 CN51 CN30CN42 CN50 CN40 AG TRANS 220 240 1 Connections in the adapter box 1 Connect the power supply cord to the terminal block and fix it in place with a tie wrap Connect a single phase 200V 220 230 240V AV to A A N N As E E is the GND terminal be sure to ground...

Page 85: ......

Page 86: ...ibuted in Nov 2001 No OC132 REVISED EDITION A 700 Issued in Jul 1997 No OC132 340 Made in Japan New publication effective Nov 2001 Specifications subject to change without notice HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

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