Mitsubishi Electric Mr.Slim PKH36FK3 Technical & Service Manual Download Page 22 | Manualshive

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8

WIRING DIAGRAM

MODELS PKH18FK3, PKH24FK3, PKH30FK3, PKH36FK3 WIRING DIAGRAM

GR

L1
L2

POWER SUPPLY
~(1PHASE)
AC208/230V 60Hz

GROUND

3

NOTES:
1.Since the indoor fan motor(MF)is connected with 230V power, if 208V power is used, change the dip switch(SW8)on

the indoor controller board as shown in fig:*1.

fig:*1

Indoor fan motor(MF)for 208V.

2.Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
3.Indoor and outdoor connecting wires are made with polarities, make wiring matching
4.Symbols used in wiring diagram above are, :Connector, :Terminal block.
5.Emergency operation

If remote controller or microcomputer fails but there is no other trouble emergency operation is possible by setting
dip switch(SW3<I.B>) on the indoor controller board.

[Check items]
(1) Make sure that no other trouble exist in the outdoor unit.Trouble with the outdoor unit prevents emergency operation.

(If any trouble exists the outdoor unit error code"P8"will be displayed on the remote controller and the trouble position
will be shown on the outdoor controller board LED. See electric wiring diagram of the outdoor unit for details.)

(2) Make sure that there is no trouble with the indoor fan.

Emergency operation will be continuous run with the power ON/OFF(ON/OFF with the remote controller is not possible).

[Emergency operation procedure]
(1) Set the dip switch(SW3<I.B>)on the indoor controller board to 1 on and 2 off for cooling and 1 • 2 on for heating.
(2) Turn on outdoor unit side circuit breaker,then indoor unit side circuit breaker.
(3) During emergency operation indoor fan runs at high speed but auto-vane does not work.
(4) Thermostat will not function.Cold air blows out for defrosting during heating thus do not operate defrosting for a long time.
(5) Emergency cooling should be limited to 10 hours maximum
(6) After every emergency operation,set all dip switches(SW3<I.B>) to OFF.
(7) Movement of the vanes does not work in emergency operation,therefore you have to slowly set them manually to the

appropriate position.

FS1,2

THERMAL FUSE

88H

HEATER CONTACTOR

HEATER THERMAL SWITCH

HEATER

26H

H

HEATER

36FK3

OFF

ON

30FK3

OFF

ON

MODELS

24FK3

12 3

12 3

12 3

12 3

ON
OFF

OFF

ON

SW7

18FK3

ON
OFF

LED(DC5V POWER)

X4

RELAY(FAN MOTOR)

LED1
LED2

LED(DC12V POWER)

SW9

SWITCH(MODEL SELECTOR)

F1,F2

VARISTOR

ZNR

NAME

I.B

INDOOR POWER BOARD
INDOOR CONTROLLER BOARD

CN2L

SW1
SW2

SW6

FC

CONNECTOR(LOSSNAY)

SWITCH(FUNCTION SELECTOR)
SWITCH(ADDRESS SELECTOR)

SWITCH(MODEL SELECTOR)

FAN PHASE CONTROL

P.B

CN51 CONNECTOR(CENTRALLY CONTROL)

SW3

SWITCH(EMERGENCY OPERATION)

SW5

SWITCH(MODEL SELECTOR)

SW7

SWITCH(TWIN/TRIPLE SELECTOR)

SW8

SWITCH(OPTION)

CN2

TB2 TB6

TERMINAL BLOCK
ROOM TEMPERATURE THERMISTOR

RT1

RT2

PIPE TEMPERATURE THERMISTOR/LIQUID

R.B

REMOTE CONTROLLER BOARD

CONNECTOR(REMOTE SWITCH)
SWITCH(ADDRESS SELECTOR)

SW17

SWITCH(FUNCTION SELECTOR)

SW18

CONNECTOR(PROGRAM TIMER)

CN1

NAME

SYMBOL

SYMBOL

VANE MOTOR

MV

FAN MOTOR

MF

CAPACITOR(FAN MOTOR)

C

12

OFF

ON

1

5

4

2

23

1

234

1

1

6

5

4

3

2

1

4

3

2

1

6

5

4

3

2

10

9

8

7

6

5

4

3

2

1

ON
OFF

ON
OFF

ON
OFF

RG79J691H02

2

1

3

BRN

3

TB4

TRANSMISSION WIRES DC12V

3

123456

OFF

123456

ON

OFF

ON

SW8

SW8

H

FS1

FS2

88H

TB2

26H

BWN

YLW

8

88H

5
6

GRY

7

GRY

RED
BLU

BLU

6

4

3

5

RED

2

1

1 2

HEATER
CN24
(YLW)

6

[LEGEND]

5 4 3 2 1

3 2 1

2
1

3

2
1

3
2
1

2
1

3

1 2

1 2

1 2

4
3
2
1

2

1

3

1

3

1

2

1

2

1

8

1

2

3

4

5

6

7

1

2

3

4

5

6

7

SW3

SW9

SW7

SW6

SW1

SW8

SW5

RT2 RT1

F2

F1

YLW

ORN

SW2

CN51

CENTRALLY
CONTROL

(WHT)

CN40

REMOCON
POWER

LED1 LED2

CN2L

LOSSNAY

8

SW17

CN2

CN1

B02

A01

TB6

ON

OFF

ON

OFF

SW18

R.B

OUTDOOR UNIT

TB3

ZNR

BLU

OUT
DOOR
CN30

TRANSMISSION WIRES DC12V

2

TB5

1

WHT

BLK

CN2D
(WHT)

GRN/YLW

RED
BLU

RED

BLU

P.B

TRANS

(DC13.1V)
CN2S (WHT)

CNSK(RED)

I.B

MF

C

1 3 5

FC

MV

X4

X4

WHT

RED

BLK

WHT

BLK

FAN
(WHT)

INTAKE
CN20
(RED)

POWER
CNDK
(WHT)

POWER
CND
(RED)

WIRELESS
CN90
(WHT)

REMOCON
CN22
(BLU)

BLU

PIPE
CN21
(WHT)

VANE
CN6V
(WHT)

DRAIN
CN31
(WHT)

243˚F ,10A(18,24FK#3)/16A(30,36FK#3)

FUSE(6A/250V)

(32˚F /15k

Ω

, 77˚F /5.4k

Ω

DETECT)

(32˚F /15k

Ω

, 77˚F /5.4k

Ω

DETECT)

(AC208/230V)

(BLU)

The drawing has been revised as some errors in
WIRING DIAGRAM have been modified.
The former drawing number is RG79J691H01.

OC273-A-1.qxp 03.11.25 8:59 AM Page 22

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Summary of Contents for Mr.Slim PKH36FK3

Page 1: ...o OC273 REVISED EDITION A AIR STANDARD 240 M A N U F A C T U R E R CERTIFIED TO ARI AS CO M P L Y I N G W I T H C E RTIFICATION SECTIONS O F EQUIPMENT AIR CO N D I T I O N I N G U N I T A R Y LIST ED C US Wall Mounted Series PKH Models Indoor unit Remote controller FILTER CHECK MODE TEST RUN TIMER OFF TIMER CHECK SET TEMP CLOCK AUTO AUTO START STOP SWING FAN SPEED AUTO RETURN Revision The wrong de...

Page 2: ... installation guide gives clear instructions on installation positions The enlarged back plate secures the unit firmly to the wall while the support piece which lifts the unit makes left side piping work much easier 3 Easily removable filter The presence of thumbscrews on the filters means that the filters can be quickly and smoothly removed FILTER CHECK MODE TEST RUN TIMER OFF TIMER CHECK SET TEM...

Page 3: ...accumulator always controls the refrigerant to its optimum condition regardless of the length of 164ft maximum The additional refrigerant charging work at the field which often caused uncertain problems heretofore is completely eliminated This unique system serves to improve the quality of work and reliability and also helps to speed up the installation work With normal circulation systems a high ...

Page 4: ...o install a number of units in a compact arrangement at a single site The outdoor unit allows for unheard of flexibility in determining a piping layout thus greatly simplifying installation 8 FRONT ACCESS FACILITATES MAINTENANCE The outdoor unit has been designed with a front access service panel that allows easy access to all maintenance point regardless of the installation layout What s more thi...

Page 5: ...UN button Only press this button to perform an inspection check or test operation Do not use it for normal operation AIR SWEEP button This switches the horizontal fan motion ON and OFF This button is not available CLOCK TIMER button This sets or switches the current time start time and stop time FAN SPEED button This sets the ventilation fan speed AIR DISCHARGE button This adjusts the vertical ang...

Page 6: ...ime start time and stop time can be displayed in ten second intervals by pressing the time switch button The start time or stop time is always displayed during the timer operation AIR DISCHARGE display This displays the air direction display The temperature of the return air is displayed during operation The dis play range is 47 to 97 F The dis play flashes 47 F when the actual temperature is less...

Page 7: ...5 0 65 NH33NBD 11 5 54 0 16 0 17 33 39 Capillary tube Reverse cycle 55 49 9 16 202 With indoor unit Indoor unit remote controller DC12V Indoor unit outdoor unit DC12V R22 9 lbs 15 oz 1 2 MS32N 1 Not supplied optional parts Flared Flared 9 1 4 13 3 8 PKH30FK3 30 000 33 000 39 100 40 500 19 000 25 100 26 500 9 1 3 12 3 02 4 82 5 22 2 48 4 28 4 68 9 6 10 6 7 1 3 2 2 2 PKH30FK3 49 44 66 PUH30EK1 30 20...

Page 8: ...2 13 6 13 1 12 6 14 2 16 3 18 0 15 8 15 4 14 9 19 0 21 5 23 5 20 7 20 1 19 4 20 2 23 1 25 6 22 5 21 8 21 0 TPC 1 99 1 93 1 88 1 87 1 84 1 83 2 63 2 55 2 47 2 47 2 41 2 39 3 48 3 37 3 27 3 26 3 21 3 19 3 83 3 71 3 61 3 59 3 52 3 50 TC 17 6 16 3 15 1 15 0 14 2 13 9 23 4 21 7 20 1 19 9 18 9 18 5 29 3 27 1 25 1 24 9 23 5 22 9 33 4 30 9 28 7 28 4 26 9 26 4 SHC 12 1 13 4 14 4 12 9 12 4 12 0 13 5 15 4 17...

Page 9: ...32 8 33 3 33 9 43 2 43 7 44 6 49 6 50 4 51 3 PC 1 99 1 91 1 83 3 01 2 90 2 78 3 86 3 72 3 56 4 49 4 28 4 14 CA 5 5 6 5 5 5 6 5 6 1 7 5 6 1 7 5 PC 1 6 1 9 1 6 1 9 1 8 2 2 1 8 2 2 IWB F 15 25 35 45 55 65 Auxiliary heater 208V 230V 710 710 990 990 Airflow CFM PKH24FK3 PKH30FK3 PKH36FK3 Notes 1 IDB Intake air dry bulb temperature CA Capacity x103 Btu h PC Power Consumption kW 2 When booster heater is ...

Page 10: ...ature F 65 65 70 70 75 75 2 PERFORMANCE CURVE NOTES A point on the curve shows the reference point COOLING CAPACITY HEATING CAPACITY COOLING CAPACITY HEATING CAPACITY Does not include booster heater 1 9kW Total power consumption kW Total capacity x10 3 Btu h 30 24 18 12 2 5 2 0 1 5 1 0 15 25 35 45 55 65 Total power consumption kW Total capacity x10 3 Btu h Outdoor intake air DB temperature F Outdo...

Page 11: ...rature F indoor intake air DB temperature F Does not include booster heater 2 2kW 65 70 75 75 70 65 Total capacity x10 Btu h 3 Total power consumption kW 42 36 30 24 4 5 4 0 3 5 3 0 2 5 Total capacity x10 Btu h 3 indoor intake air WB temperature F SHF 0 71 Total power consumption kW Outdoor intake air DB temperature F indoor intake air WB temperature F 0 23 32 35 45 55 65 67 75 85 95 105 115 71 67...

Page 12: ...100 110 Outdoor ambient temperature DB F Indoor DB temperature F 86 80 75 70 100 90 80 70 60 50 40 30 20 psi G Suction pressure 30 40 50 60 70 80 90 100 110 Outdoor ambient temperature DB F 86 80 75 70 Indoor DB temperature F 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 psi G Condensing pressure 30 35 20 25 45 55 65 40 50 60 70 Outdoor ambient temperature DB ...

Page 13: ...ature DB F Indoor DB temperature F 86 80 75 70 100 90 80 70 60 50 40 30 20 psi G Suction pressure 30 40 50 60 70 80 90 100 110 Outdoor ambient temperature DB F 86 80 75 70 Indoor DB temperature F 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 psi G Condensing pressure 30 35 20 25 45 55 65 40 50 60 70 Outdoor ambient temperature DB F 75 70 65 Indoor DB tem perat...

Page 14: ...ture DB F 86 80 75 70 110 100 90 80 70 60 50 40 30 psi G Suction pressure 30 40 50 60 70 80 90 100 110 Outdoor ambient temperature DB F 86 80 75 70 Indoor DB temperature F Indoor DB temperature F 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 140 psi G Condensing pressure 30 35 20 25 45 55 65 40 50 60 70 Outdoor ambient temperature DB F 75 70 65 Indoor DB tem perat...

Page 15: ...erature DB F 86 80 75 70 90 80 70 60 50 40 30 20 psi G Suction pressure 30 40 50 60 70 80 90 100 110 Outdoor ambient temperature DB F 86 80 75 70 Indoor DB temperature F Indoor DB temperature F 390 380 370 360 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 psi G Condensing pressure 30 35 20 25 45 55 65 40 50 60 70 Outdoor ambient temperature DB F 75 70 65 Indoor DB tem peratur...

Page 16: ...ating PKH18FK3 208 230 2 36 0 5 0 65 0 65 9 3 8 7 240 75 158 115 46 141 80 67 58 56 95 75 24 000 0 71 60 Cooling 208 230 2 37 0 5 7 6 8 4 0 65 0 65 9 5 8 7 243 63 149 115 35 126 70 60 105 70 47 43 25 000 Heating PKH24FK3 208 230 3 12 0 6 0 75 0 75 12 6 11 8 245 80 158 115 49 138 80 67 59 58 95 75 30 000 0 75 60 Cooling 208 230 3 02 0 6 8 7 9 6 0 75 0 75 12 2 11 4 236 60 159 113 32 130 70 60 103 70...

Page 17: ... 85ft 0 0 0 0 100ft 0 0 0 0 115ft 2 2 5 5 130ft 4 4 10 10 150ft 7 16 16 164ft 9 20 20 Refrigerant piping length one way 5 lbs 8 oz 9 lbs 15 oz 10 lbs 2 oz 10 lbs 9 oz PKH18FK3 PKH18FK3 PKH24FK3 PKH30FK3 PKH36FK3 PKH24FK3 PKH30FK3 PKH36FK3 5 OPERATING RANGE 1 POWER SUPPLY 6 OUTLET AIR SPEED AND COVERAGE RANGE 7 ADDITIONAL REFRIGERANT CHARGE R22 oz 1 Phase 60Hz 208 230V Guaranteed voltage range 2 OP...

Page 18: ...D CENTER FREQUENCIES Hz Hi NOTCH Lo 49 SPL dB 44 LINE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz Hi NOTCH Lo 48 SPL dB 41 LINE Wall Unit 3 3ft 3 3ft Ambient temperature 80 F Test conditions are based on JIS Z...

Page 19: ...6 1 17 32 1 3 16 1 15 32 2 29 32 5 32 1 5 32 11 1 32 1 3 16 7 1 4 1 3 16 3 5 32 1 3 18 2 3 8 13 32 1 17 32 1 15 32 2 9 16 3 15 16 A B C Knock out hole for piping 31 32 43 11 16 7 7 32 9 7 16 B 44 3 32 21 23 32 4 23 32 2 5 32 4 1 32 4 3 8 Air outlet 21 23 32 Air outlet Change vane manual Under panel Removable at left hand side piping Knock out hole for under piping Refrigerant pipe Drain pipe Rear ...

Page 20: ...ipe Top Front Left side Air intake 5 15 16 or less 1 3 16 or more 10 or more Air outlet 13 3 8 Knock out hole for left piping 1 3 16 1 3 16 1 15 32 1 15 32 2 9 16 1 15 32 1 17 32 1 17 32 3 15 16 3 15 16 5 32 5 32 2 29 32 2 29 32 2 9 16 3 27 32 1 17 32 Lower side 2 1 Knock out hole for wiring 2 or more 10 or more 9 1 4 1 25 32 9 1 4 1 25 32 9 1 4 1 25 32 9 1 4 1 2 1 25 32 2 15 32 1 2 11 5 8 23 32 W...

Page 21: ...ram has been modified The size of capillary tube 0 157x 0 071x19 7 was wrong Distributor Restrictor valve Capillary tube Refrigerant pipe option 3 8 with heat insulator Refrigerant pipe option 5 8 with heat insulator Strainer Flared connection Flared connection Pipe temperature thermistor Liquid RT2 PKH30FK3 0 157x 0 079x23 6 PKH36FK3 0 157x 0 079x15 7 Distributor Restrictor valve Capillary tube R...

Page 22: ...operation therefore you have to slowly set them manually to the appropriate position FS1 2 THERMAL FUSE 88H HEATER CONTACTOR HEATER THERMAL SWITCH HEATER 26H H HEATER 36FK3 OFF ON 30FK3 OFF ON MODELS 24FK3 12 3 12 3 12 3 12 3 ON OFF OFF ON SW7 18FK3 ON OFF LED DC5V POWER X4 RELAY FAN MOTOR LED1 LED2 LED DC12V POWER SW9 SWITCH MODEL SELECTOR F1 F2 VARISTOR ZNR NAME I B INDOOR POWER BOARD INDOOR CON...

Page 23: ...P Auxiliary heater OFF Compressor OFF Fan STOP Four way valve OFF MAIN OPERATION w1 In addition the centralised control and remote control can be operated w2 The modes which indicate the sources of trouble are listed below E0 Signal transmitting receiving error P1 Room temperature thermistor malfunction P2 Indoor coil thermistor malfunction P4 Drain sensor malfunction P5 Drain overflow P6 Coil fro...

Page 24: ...ng protection detection temperature 30 F 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 w8 When operation stops or changes to cooling or dry mode the auto vane turns to a horizontal angle If op...

Page 25: ...ipe temperature is below 43 F the fan speed changes to LOW mode It is not possible to set the fan speed with the remote controller DRY OPERATION DRY operation Four way valve OFF Initial dry operation Room temperature is 64 F 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...

Page 26: ...owance set Compressor OFF Indoor piping 95 F or higher HOT adjust 5 min elapse FAN SPEED Low FAN SPEED Low 2 min elapse FAN SPEED setting notch Hot adjust release 3 minute Auxiliary heater OFF Indoor coil thermistor is 140 F 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 4 After 15min T1 To 4 COOL operat...

Page 27: ...F 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 tem perature data from indoor unit Processes orders and data Controls indoor and outdoor operation Self diagnostic ...

Page 28: ... Even if the room temperature displayed on remote controller rises above the set temperature during this period the com pressor will not start until this period has ended 2 INDOOR UNIT CONTROL 2 1 COOL operation How to operate 1 Press the ON OFF button 2 Press MODE button to set operation mode to Cool 3 To set desired temperature press SET TEMP button NOTE Set temperature changes by 2 F in the ran...

Page 29: ... After the compressor has been continuously operated for 3 minutes or more and the indoor coil temperature has been 5 F or below for 3 minutes the coil frost protection will start Coil frost protection Compressor stops for 6 minutes and then restarts lf the start condition is satisfied again during the first 10 minutes of compressor operation both the indoor and outdoor units stop displaying a che...

Page 30: ...d 4 SWING 5 Remote controller display Changes by pressing the AIR DISCHARGE button AUTO RETURN When discharge 60 or 70 continues for 1 hour with the fan speed at LOW the discharge direction turns to the horizontal discharge automatically After that 60 or 70 is available by setting with the remote controller and it continues for 1 hour If the discharge direction changes from 60 or 70 the direction ...

Page 31: ...f the dif ference is still out of RANGE C the outdoor unit is functioning abnormally Thus the compressor stops and check code P8 appears on remote controller RANGE A Indoor coil temperature is more than 9 degrees above room temperature RANGE B Indoor coil temperature is within 9 degrees either way of room temperature RANGE C Indoor coil temperature is more than 9 degrees below room temperature Ind...

Page 32: ...et temperature w1 Even if the room temperature rises above the set temperature during this period the compressor will not start until this period has ended 2 2 DRY operation How to operate 1 Press POWER ON OFF button 2 Press the MODE button to display DRY 3 Press the SET TEMP button to set the desired temperature NOTE The set temperature changes 2 F when the SET TEMP button is pressed one time Dry...

Page 33: ...h thermostat ON the compressor will operate for 2 more min utes and then stop for 3 minutes If the room temperature thermistor reads below 75 F with thermostat ON the compressor will stop for 3 minutes If the thermostat is OFF regardless of room temperature the compressor will stop for 10 minutes 5Coil frost protection Coil frost protection in DRY operation is the same as in COOL operation 6Coil f...

Page 34: ...mperature Room temperature falls below set tem perature w2 Even if the room temperature falls below the set temperature during this period the compressor will not start until this peri od has ended HEAT operation time chart How to operate 1 Press POWER ON OFF button 2 Press the MODE button to display HEAT 3 Press the SET TEMP button to set the desired temperature NOTE The set temperature changes 2...

Page 35: ...when thermostat turns OFF 2 Indoor fan control a Normal control i The indoor fan runs on LOW speed during the thermostat OFF LOW speed can be changed to HIGH speed by setting the dip switch SW1 6 If the indoor coil temperature becomes more than 5 degrees below the room temperature during the thermostat OFF the indoor fan will stop After when the indoor coil temperature becomes within 5 degrees of ...

Page 36: ...appear on the remote controller display i During compressor ON while hot adjustment is set 1 If the difference between the indoor coil temperature and room temperature is in the RANGE B the indoor fan will stop 2 Within 20 minutes after entering RANGE B except for the first 10 seconds a If the temperature difference enters RANGE A the hot adjustment starts b If the temperature difference is still ...

Page 37: ...emperature and room temperature gets out of RANGE A and into RANGE B the indoor unit starts the defrosting mode After the out door unit stops the defrosting operation when the temperature difference returns to the RANGE A the indoor unit stops the defrosting mode While the indoor unit is in the defrosting mode the indoor fan and the booster heater stop w1 RANGE A Indoor coil temperature is more th...

Page 38: ...de air temperatures as follows Mode change HEAT COOL When room temperature becomes 4 degrees above the set temperature the operation mode can not be changed for 15 minutes degree To 4 To Set temperature 65 83 F To 2 To To 2 To 4 Compressor Start HEAT mode HEAT mode Mode change 15 minutes 15 minutes Minimum 3 minutes COOL mode COOL HEAT ON OFF 10 20 30 40 50 60 70 80 90 100 110 120 COOLING 0 F 115 ...

Page 39: ...ection with AIR DISCHARGE 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 LOW in hot adjustment Available in COOL operation with fan speed on HIGH or in HEAT operation Unavailable in DRY operation If fan speed changes from LOW to HIGH during 30 downward discharge in COOL mode t...

Page 40: ...gerant leakage looseness in power supply or control wiring and mistaken polarity Use a 500 volt measure to check the resistance between the power supply terminal block and ground to make sure that it is at least 1 0MΩ Attention Do not use the air conditioner if resistance is less than 1 0MΩ How to operate 1 Turn ON main breaker 2 Press TEST RUN button twice TEST RUN is displayed on remote controll...

Page 41: ...ation 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 2 Turn ON the outdoor unit breaker and then ON the indoor unit breaker Emergency operation...

Page 42: ...COOL and DRY operation ON The drain pump works in both COOL and DRY and HEAT operation SW1 3 Switch to change the temperature to start coil frost prevention OFF 34 F ON 36 F SW1 4 Switch for set temperature adjustment in HEAT mode During HEAT operation warm air collects near the ceiling When the indoor unit is installed near the ceiling the temperature read by room temperature thermistor differs f...

Page 43: ...s selector 1 2 3 4 ON 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 PKH30FK3 PKH36FK3 1 2 3 ON OFF 1 2 3 ON OFF PKH24FK3 1 2 3 ON OFF PKH18FK3 1 2 3 ON OFF 7 SW8 Option SW8 1 2 Not for use SW8 3 4 Not for use SW8 5 Not for use SW8 6 OFF For 230V...

Page 44: ...ned 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 measures replace the indoor controller board De...

Page 45: ...ess 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 the next page 2 SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER WIRED REMOTE CONTROLLER 2 1 When malfunction occurs during operation When a malfunction occurs the indoor and outdoor uni...

Page 46: ...ansmission wire 2 Damaged thermistor 1 Check the connector 2 Measure the resistance of the thermistor 1 3 32 F 6kΩ 59 F 3 2kΩ 86 F 1 8kΩ 41 F 4 8kΩ 68 F 2 6kΩ 95 F 1 5kΩ 50 F 3 9kΩ 77 F 2 2kΩ 104 F 1 3kΩ If the resistance is normal replace the indoor controller board P5 Malfunction of drain pump 1 Malfunction of drain pump 2 Damaged drain sensor 1 Check the drain pump 2 Check the drain sensor Chec...

Page 47: ...t 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 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 minute...

Page 48: ...y remains OFF Indoor outdoor connect ing wire is connected incorrectly Indoor outdoor connect ing wire shorts Compressor protector is damaged Outdoor controller board is defective 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 connecte...

Page 49: ...k points 0 10 20 30 40 50 4 14 32 50 68 86 104 122 Thermistor for lower temperature Temperature F Resistance K Thermistor Characteristic graph Room temperature thermistor RT1 Pipe temperature thermistor RT2 Thermistor R0 15k 3 Fixed number of B 3480k 2 Rt 15exp 3480 32 F 15k 50 F 9 6k 68 F 6 3k 77 F 5 4k 86 F 4 3k 104 F 3 0k Thermistor for lower temperature 1 273 t 1 273 30 36FK3 69 7 i10 95 5 i10...

Page 50: ...t can be controlled individually by each remote controller Dunning remote ON OFF control a message of CENTRALLY CON TROLLED is displayed on the LCD of the remote con troller This is available for both one unit control and several units control 4 Individual control by grouping remote controllers See page OC273 53 Unit Remote controller Unit Unit By grouping the remote controllers in one place sever...

Page 51: ...ure 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 remo...

Page 52: ... remote con trollers 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 available by connecting a r...

Page 53: ...hout a special control board Remote control cables can be extended up to 550yards When the cable length exceeds 33ft use the double insulated two core cable such as Belden 9407 Also the cable thickness must be No 22 AWG or above When gathering the power ON OFF switches of air conditioners near the remote controllers you should also install the power ON OFF switch near each unit to prevent electric...

Page 54: ...Lamp GL Check Lamp Field supplied parts Relays 12V DC with rated coil power consumption below 0 9W Lamps Matching to power supply voltage CN51 connector 5P GREEN Power supply Electrical insulation is needed Wiring at the actual place Optional multiple display adapter The maximum distance between indoor board and relay is 33ft YELLOW ORANGE RED BROWN 5 X2 X2 GL RL X1 X1 1 Wiring CN51 Indoor control...

Page 55: ... the electrical box cover and remove the cover 3 Disconnect the connectors on the indoor controller board 4 To unhook the catches on the right hand side of the indoor controller board pull the left hand side toward you and lift up the cover to the right Then the indoor controller board can be removed 4 Removing the electrical box 1 Remove the right side panel 2 Remove the screw of the electrical b...

Page 56: ...the catch on the panel from the catch on the unit 2 Slide the left side panel to the left to remove the panel Note Fix the unit to the metal fixture securely 3 Remove the air filters 4 Hold and press the center cover to remove 5 Remove the screws of the 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 th...

Page 57: ...toward you and remove the line flow fan 9 Removing the electrical heater 1 Remove the left and right side panels 2 Remove the grilles 3 Remove the drain pan 4 Loosen the screw that fixes the line flow fan to the fan motor See Photo 7 5 Remove the screw of the center support and remove the support See Photo 10 6 Remove the 2 screws on the left and right sides of the heat exchanger and pull the bear...

Page 58: ...g Diagram Symbol Q ty set PKH 1 2 3 4 5 SLEEVE BEARING BEARING MOUNT LEFT LINE FLOW FAN LEFT LINE FLOW FAN RIGHT LINE FLOW FAN RIGHT LINE FLOW FAN HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER R01 005 103 R01 Z61 102 R01 12G 114 R01 16G 114 R01 12G 115 R01 16G 115 T7W B08 480 T7W B02 480 T7W B09 480 T7W B03 480 18 24 30 36 FK3 FK3 FK3 FK3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 PKH18...

Page 59: ... 88H 88H MF MF R B FS1 2 FS1 2 26H H H 33ft ROOM TEMPERATURE PIPE TEMPERATURE INDOOR COIL 3P L1 L2 GR 3P 1 2 3 2P 1 2 2 5µF 440V 250V 6A LY1F DC12V LY2F DC12V PN4N45 K PN4N70 K 243 F 10A 250V 243 F 15A 250V 240V 700W 240V 800W T7W E13 529 T7W E14 529 R01 12G 621 R01 12G 063 R01 12G 002 R01 16G 002 R01 KV5 527 R01 12G 223 T7W A00 305 T7W E12 202 R01 E02 202 R01 377 246 R01 998 246 R01 556 246 T7W E...

Page 60: ... A17 500 R01 12G 661 R01 12G 691 R01 12G 808 R01 16G 808 R01 E01 641 R01 E00 641 R01 16G 692 R01 12G 523 LEFT SIDE PANEL UNDER PLATE UNDER PLATE NOSE NOSE FILTER RIGHT SIDE PANEL INTAKE GRILLE BACK PLATE BACK PLATE TOP PLATE TOP PLATE INTAKE GRILLE DRAIN SOCKET 18 24 30 36 FK3 1 1 1 4 1 2 1 1 1 FK3 1 1 1 4 1 2 1 1 1 FK3 1 1 1 5 1 2 1 1 1 1 FK3 1 1 1 5 1 2 1 1 1 1 STRUCTURAL PARTS PKH18FK3 PKH24FK3...

Page 61: ...with set back function Model Name Program timer Parts name Program timer Parts No PAC SC32PTA Exterior dimensions inch 5 4 32x4 23 32x23 32 130x120x18mm Installation Wall mount Type of clock Quartz Clock accuracy 50 second month at 77 F Display Time Week Timer setting unit Liquid crystal display Liquid crystal display Liquid crystal display Program cycle 24 hours Timer setting unit 30 minutes No o...

Page 62: ... advances by 1 minute at 0 5 second interval and when the lower digit of minute becomes 0 indication advances in 10 min utes 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 ...

Page 63: ......

Page 64: ...2001 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in Nov 2003 No OC273 REVISED EDITON A PDF 9 Distributed in Dec 2001 No OC273 New publication effective Nov 2003 Specifications subject to change without notice ...

Page 65: ...3400 Lawrenceville Suwanee Road Suwanee Georgia 30024 Toll Free 800 433 4822 Toll Free Fax 800 889 9904 www mrslim com Specifications are subject to change without notice ...

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