manualshive.com logo in svg

Mitsubishi Electric Mr.Slim PK36FK, Technical & Service Manual, Page: 23 / 80

Share
Download
Mitsubishi Electric Mr.Slim PK36FK Technical & Service Manual Download Page 23

23

NOTES :

1. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
2. Indoor and outdoor connecting wires are made with polarities.  Make wiring matching terminal numbers.
3. Symbols used in wiring diagram above are, 

¤¤

: Connector.  

/

: Terminal block.

4. Emergency operation

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

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

code "PB" will be displayed on the remote controller and the trouble position will e 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 operation mode due to 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.

(2) Turn on outdoor unit side circuit breaker, then indoor unit side circuit breaker, in this order.
(3) During emergency operation, indoor fan runs at high speed but automatic vane remains stop.  If vane is closed, open the vane by hands.
(4) Thermostat will not function.
(5) Emergency cooling should be limited to 10 hours maximum.
(6) After every operation, set all dip switches (SW3<I. B>) to OFF.

BG79N686H01

TB6

1 2

OFF
ON

R.B

2

1

4

3

6

5

CN1

1 2 3

CN2

LCD

0987654321

SW17

18,24FK

GR

J9

8

7

LED1 12V
POWER

X4

C

MF

L1

Çm

GRN/YLW

SW7

CN51

CENTRALL

Y

CONTROL

LED2 5V
POWER

ON
OFF

TRANSMISSION WIRES
DC12V

1

2

HEA
TER

CN24

REMOCON

POWER

CN40

4

2
1

3

J5

4

SW2

ON
OFF

123456

SW6

1234

9

6

5

4

J1

1234

SW7

SW3

ON
OFF

12

TO

REMOCON

CN22

1

2

OFF

ON

1234

1234

30,36FK

MODELS

RT2

2

CN27

D.U.M

I.B

TO OUTDOOR UNIT
CONNECTING WIRES
DC12V

1

T

ZNR

F2

F1

MV

1

2

3

4

5

1

6

1

1

4

3

2

3

5

3

2

1

1

1

3

3

FAN1

POWER

OUTDOOR

TRANS

VANE

LOSSNA

Y

TRANS

CND

CN30

CN6V

CN4T

CN2L

CNT

DRAIN

CN50

INTAKE

CN20

PIPE

CN21

1

1

2

2

RT1

TB2

GROUND

POWER SUPPLY
Å`(1 PHASE)
AC115V 60Hz

WHT

BLK

RED

TB5

BLU

BLU

TB4

6

ORN

YLW

BRN

BRN

RED

RED

14.3VAC

10VAC

115V

BLU

RED

WHT

RED

X4

PK18, 24, 30, 36FK

SYMBOL

C

NAME

FAN MOTOR CAPACITOR

CN1<R. B>

PROGRAM TIMER CONNECTOR

CN2<R. B>

REMOTE SWITCH CONNECTOR

CN2L<I. B>

LOSSNAY CONNECTOR

CN27<I. B>

DRAIN LIFT-UP MECHANISM CONNECTOR

CN51<I. B>

CENTRALLY CONTROL CONNECTOR

F1. 2<I. B>

FUSE (6A 250V)

I. B

INDOOR CONTROLLER BOARD

J1

MODE SELECTOR JUMPER RESISTORS

J5

MODEL SELECTOR JUMPER RESISTORS

J9

MODEL SELECTOR JUMPER RESISTORS

LCD<R. B>

LIQUID CRYSTAL DISPLAY

LED1<I. B>

LED (DC 12V POWER)

LED2<I. B>

LED (DC 5V POWER)

MF

FAN MOTOR

MV

R. B

VANE MOTOR

REMOTE CONTROLLER BOARD

SYMBOL

RT1

NAME

ROOM TEMP.  THERMISTOR
(32˚F/15K

Ω

, 77˚F/5.4K

Ω

DETECT)

RT2

PIPE TEMP.  THERMISTOR
(32˚F/15K

Ω

, 77˚F/5.4K

Ω

DETECT)

SW2<I. B>

ADDRESS SELECTOR

SW3<I. B>

EMERGENCY OPERATION

SW6<I. B>

MODEL SELECTOR

SW7<I. B>

MODEL SELECTOR

SW17<I. B>

ADDRESS SELECTOR

T

TRANSFORMER

TB2

POWER TERMINAL BLOCK

TB4

INDOOR / OUTDOOR CONNECTING LINE TERMINAL BLOCK

TB5, 6

REMOTE CONTROLLER TRANSMISSION LINE TERMINAL BLOCK

X4<I. B>

FAN MOTOR RELAY

ZNR

VARISTOR

OC121--1.qxp  24/6/97 2:12 AM  Page 23

Summary of Contents for Mr.Slim PK36FK

Page 1: ...TIONAL PARTS 74 Indoor unit Outdoor unit Models Indoor unit Wall Mounted Series PK MITSUBISHI ELECTRIC ON DRY COOL FAN CHECK SET TEMP TIMER OFF AUTO STOP AUTO START F HR F LOW HIGH AUTO RETURN CHECK TEST RUN POWER ON OFF MODE SELECT SET TEMPERATURE FAN COOL DRY COOLER WARMER TIMER MODE HOURS FAN SPEED LOW HIOGH AIR DISCHARGE UP DOWN SWING STOP CHECK TEST RUN CENTRALLY CONTROLLED REMOTE CONTROLLER ...

Page 2: ...models boast refrigerant piping in 4 directions and drain piping in 2 directions 3 Back plate installation guide The back plate 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 4 Front power supply box The front power supply box allow...

Page 3: ...nd a large accumulator always controls the refrigerant to its optimum condition regardless of the length of 164ft maximum or 25ft minimum 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 ...

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 9 FRONT ACCESS FACILITATES MAINTENANCE The outdoor unit has been designed with a frontaccess service panel that allows easy access to all maintenance point regardless of the installation layout What s more this...

Page 5: ...28 50 25 9 16 105 130 130 PK18FK 18 500 1 75 10 6 11 3 PK18FK 15 1 0 7 710 530 640 480 5 3 43 35 1 53 PU18EK1 20 16 0 75 RH247NAB 12 0 37 0 11 0 12 23 28 53 33 1 2 154 3 8 5 8 55 1 8 34 1 4 11 5 8 PK24FK 24 000 2 34 10 3 10 6 PK24FK Munsell 3 4Y7 7 0 8 115 1 60 15 1 0 7 710 530 640 480 7 2 43 35 1 9 1 4 13 3 8 53 PU24EK1 Munsell 5Y7 1 208 230 1 60 20 16 0 65 0 65 NH33NBD 11 5 54 0 16 0 17 33 39 Ca...

Page 6: ... 7 31 4 29 2 29 0 27 7 27 1 38 4 35 7 33 3 33 1 31 5 30 9 85 SHC 9 5 10 6 11 5 10 3 10 0 9 7 14 3 15 8 17 2 15 4 15 0 14 4 15 8 18 1 20 0 17 6 17 1 16 6 20 8 23 6 25 8 22 9 22 3 21 5 22 1 25 3 28 1 24 8 24 1 23 3 TPC 1 14 1 12 1 09 1 09 1 07 1 06 1 65 1 61 1 57 1 57 1 55 1 54 2 21 2 16 2 11 2 10 2 07 2 05 2 89 2 82 2 75 2 75 2 70 2 69 3 28 3 20 3 12 3 11 3 07 3 05 TC 13 5 12 5 11 6 11 5 11 0 10 8 ...

Page 7: ...85 95 105 115 Total capacity 10 3 Btu h Total power consumption kW Outdoor intake air DB temperature F indoor intake air WB temperature F indoor intake air WB temperature F SHF 0 82 Total capacity 10 3 Btu h Total power consumption kW Outdoor intake air DB temperature F 0 23 32 35 45 65 67 75 85 95 105 115 55 1 5 2 0 2 5 3 0 3 5 18 36 24 30 71 67 63 71 67 63 0 23 32 35 45 65 67 75 85 95 105 115 55...

Page 8: ...ng mode Condensing pressure 30 40 50 60 70 80 90 100 110 DB F Outdoor ambient temperature F indoor intake air WB temperature F psi G 100 90 80 70 60 50 40 30 86 80 75 70 PK12FK Suction pressure 30 40 50 60 70 80 90 100 110 DB F 8 PK36FK COOLING CAPACITY 42 71 67 63 71 67 63 30 36 24 4 5 4 0 3 5 3 0 2 5 023 3235 45 55 65 67 75 85 95 105 115 Total capacity 10 3 Btu h Total power consumption kW Outdo...

Page 9: ...40 30 20 30 40 50 60 70 80 90 100 110 Outdoor ambient temperature DB F DB F psi G Indoor DB temperature F Indoor DB temperature F Condensing pressure Suction pressure PK24FK Coling mode PK24FK Outdoor ambient temperature Outdoor ambient temperature DB F DB F 86 80 75 70 86 80 75 70 30 40 50 60 70 80 90 100 110 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 psi ...

Page 10: ...F Outdoor ambient temperature F PK30FK Suction pressure DB F 86 80 75 70 100 90 80 70 60 50 40 30 30 40 50 60 70 80 90 100 110 psi G indoor intake air WB temperature F Outdoor ambient temperature F indoor intake air WB temperature F psi G 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 140 86 80 75 70 PK36FK Coling mode Condensing pressure 30 40 50 60 70 80 90 100 1...

Page 11: ... 87 155 116 52 25 4 lbs 14oz 80 67 61 59 1 420 490 95 75 790 1 590 PK18FK Cooling 18 500 0 82 1 75 PK18FK 115 1 60 0 09 0 7 PU18EK1 208 230 1 60 1 66 12 0 0 75 255 82 171 118 51 25 5 lbs 8 oz 80 67 61 59 1 300 710 95 75 790 1 590 PK24FK Cooling 24 000 0 72 2 34 PK24FK 115 1 60 0 09 0 7 PU24EK1 208 230 1 60 2 25 11 5 0 65 0 65 240 74 155 114 44 25 9 lbs 15 oz 80 67 58 56 1 300 710 95 75 3 170 PK30F...

Page 12: ...Min 103V Max 127V Min 198V Max 253V Function Cooling DB F 80 95 67 80 Condition Standard temperature Maximum temperature Minimum temperature Maxmum humidity Indoor Intake air temperature Outdoor WB F 67 71 57 75 DB F 95 115 0 80 WB F 75 75 75 Airflow Air speed Coverage range CFM ft sec ft Standard height 8 2ft PK12FK 490 14 1 32 PK18FK 710 16 1 41 PK24FK 710 16 1 41 PK30FK 990 17 7 50 PK36FK 990 1...

Page 13: ... 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 55 1 8 20 9 16 4 23 32 2 5 32 4 1 32 4 3 8 Air outlet 20 9 16 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 pi...

Page 14: ...7 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 55 1 8 20 9 16 4 23 32 2 5 32 4 1 32 4 3 8 Air outlet 20 9 16 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 o...

Page 15: ...id pipe 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 ...

Page 16: ...tion Terminal bed for power line Refrigerant pipe flared connection 5 8 Knock out hole for front piping Knock out hole for front piping Knock out holes for power line 1 1 16 15 32 29 32 Oval holes Drain hole Drain hole standard bolt M10 refrigerant drainage and wiring refrigerant drainage and wiring Ground terminal Handle for moving Service panel Handle for moving Side air intake Rear piping hole ...

Page 17: ...r right piping refrigerant drainage and wiring 15 7 8 7 1 18 20 5 18 17 3 18 1 2 13 7 4 13 7 8 21 3 4 2 3 8 20 5 8 1 9 16 33 9 16 34 1 4 11 7 8 7 9 32 7 9 32 Front opening Service space for N E C 1 2 36 36 4 Note Allow adequate upper clearance 1 2 8 1 2 1 9 161 1 16 13 14 1 4 11 16 9 16 19 11 16 Refrigerant pipe Flared 3 8 Outlet guide installation hole 1 40 1 2 Outdoor Unit Necessary surrouding c...

Page 18: ... 8 2 3 8 13 9 16 23 1 16 7 8 1 5 16 15 1 16 37 3 4 2 3 8 20 5 8 1 9 16 49 1 2 38 3 16 13 7 8 7 9 32 7 9 32 Front opening Service space for N E C 1 2 36 36 6 Note Allow adequate upper clearance Outdoor Unit necessary surrounding clearance 1 2 12 1 2 1 9 16 1 1 16 14 31 32 16 1 4 11 16 9 16 23 5 8 Refrigerant pipe Flared 2 Outlet guide installation hole 1 40 1 2 Outdoor Unit Necessary surrouding cle...

Page 19: ...and wiring 3 1 4 20 5 8 20 5 8 2 3 8 13 9 16 23 1 16 7 8 1 5 16 15 1 16 37 3 4 2 3 8 20 5 8 1 9 16 49 1 2 38 3 16 13 7 8 7 9 32 7 9 32 Front opening Service space for N E C 1 2 36 36 6 Note Allow adequate upper clearance Outdoor Unit necessary surrounding clearance 1 2 12 1 2 1 9 16 1 1 16 14 31 32 16 1 4 11 16 9 16 23 5 8 Refrigerant pipe Flared 3 8F Outlet guide installation hole 1 40 1 2 Outdoo...

Page 20: ... ON CHECK TEST RUN LOW HIGH ON OFF POWER SET 3 5 8 5 8 2 3 4 TIMER MODE HOURS FAN SPEED LOW HIGH CHECK TEST RUN 4 3 4 4 1 4 5 32 A 4 3 4 4 1 4 1 4 VIEWA 3 8 1 2 3 16 2 5 16 3 9 32 1 2 Fixing holes Side wiring arrangement opening Rear side wiring arrangement opening AIR UP DOWN SWING STOP DISCHARGE Unit inch 4 3 Remote controller ...

Page 21: ...illary tube size OD ID Length For PK24FK 0 126 0 063 17 3 2 sets For PK18FK 0 126 0 063 31 5 2 sets Indoor unit Outdoor unit Indoor coil thermistor RT2 or TH2 Refrigerant pipe Option 3 4 with heat insulator Distributor Indoor heat exchanger Outdoor heat exchanger Refrigerant pipe Option 1 2 with heat insulator Flexible tube Flared connection Ball valve Fusible plug High Pressure Switch Outdoor coi...

Page 22: ...imited to 10 hours maximum 7 After every operation switch the fan connector to FAN 1 and set all dip switches SW3 I B to OFF BG79N685H01 GR TB6 1 2 OFF ON R B 2 1 4 3 6 5 CN1 1 2 3 CN2 LCD 0987654321 SW17 LED1 12V POWER LED2 5V POWER SW7 SW2 123456 10 1234 SW5 2 1 CN2L LOSSNAY 3 1 LS MV TRANSMISSION WIRES DC12V 1 2 1 3 5 FAN2 HEATER CN24 REMOCON POWER CN40 4 2 1 3 SW1 ON OFF 123456789 SW6 1234 123...

Page 23: ...witches SW3 I B to OFF BG79N686H01 TB6 1 2 OFF ON R B 2 1 4 3 6 5 CN1 1 2 3 CN2 LCD 0987654321 SW17 18 24FK GR J9 8 7 LED1 12V POWER X4 C MF L1 Çm GRN YLW SW7 CN51 CENTRALLY CONTROL LED2 5V POWER ON OFF TRANSMISSION WIRES DC12V 1 2 HEATER CN24 REMOCON POWER CN40 4 2 1 3 J5 4 SW2 ON OFF 123456 SW6 1234 9 6 5 4 J1 1234 SW7 SW3 ON OFF 12 TO REMOCON CN22 1 2 OFF ON 1234 1234 30 36FK MODELS RT2 2 CN27 ...

Page 24: ... YLW BRN AC12 3V RED RED WHT WHT WHT RED R R S C T C U 52C MC 51C W GRN WHT BLU BLU WHT 1 2 RED WHT RED ORN GRY GRY WHT WHT BLU YLM YLM YLM YLM RED RED BLU BLU WHT BLU RED ORN AC12 3V 208V 230V T ORN SW1 SW2 SW3 CN3 CN2 TRF 52C 52C CH ZNR 63HI FC C3 MF 26C 51CM 63H2 63H2 MF1 R 1 F S 2 T 3 CH CN4 X12 X12 X12 X11 CN4T OFF ON 2 2 1 1 1 S A B 1 2 3 4 5 2 3 4 4 LO1 LO2 LO3 LO4 LO5 LO6 LO7 LO8 6 2 Outdo...

Page 25: ...ED when both Nos 1 and 2 of SW3 are OFF NOTES If the operation stops to function of the protection device the check display flashes How to use SW1 and 2 Pressing SW1 erases the past check contents loaded on the microcom puter The output display light remains during operation but pressing SW2 displays the past check contents in flashing mode Pressing the switch again returns to output display light...

Page 26: ...our way valve OFF MAIN OPERATION 1 In addition the centralized 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 Indoor coil thermistor malfanction P4 Drain sensor malfunction P5 Drain over flow P6 Coil frost overheat protection P7 System error P8 Outdoor unit tr...

Page 27: ...oil tempreature is 50 F or higher 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 operation changes during auto vane SWING the a...

Page 28: ...ot possible to set the fan speed with the remote controller DRY OPERATION DRY operation Initial dry operation Room tempereature 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 10 minute compressor OFF Compressor ON time set Compressor ON Fan speed LOW 1 Compressor...

Page 29: ...NPUT 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 System control operation Emergency operation Set by dipswitch on indoor controller board Transmits th...

Page 30: ...w for 3 minutes the coil frost protection mode starts 2 The compressor stops and restarts 6 minutes later 6 minute time delay 3 The first 10 minutes after the compressor restart is an allowance period If the same conditions as 1 is satisfied in the allowance period both indoor and outdoor units stop and check code P6 appears on the liquid crystal display LCD of the remote controller If the same co...

Page 31: ...ssor does not work When the room temperature rises above 64 F If the thermostat is ON the 3 minute time delay works If the thermostat is OFF the 10 minute time delay works 2 Fan control While the compressor operates the fan speed is LOW While the compressor stops the fan stops Fan speed setting by the remote controller is not available 3 Protection function Coil frost protection is the same as tha...

Page 32: ...7 F 97 F When this range is exceeded 47 F or 97 F is displayed CHECK Displayed when self diagnostic functioning occurs and simulta neously the check code is dis played in the set temp TEST RUN Displayed when test run opera tion mode is functioning Turned automatically off after 2 hours of operation NOTE 1 CENTRALLY CONTROLLED is displayed for two seconds after POWER button is turned to on This is ...

Page 33: ... pr 0 5 sec Time setting is in 1 hour units for up to 24 hours In this example the AUTO STOP is selected and 8 hours later the air conditioner will be turned to off The time display will change in 1 hour units showing the remaining time The timer mode automatically memorizes the previous time setting When the timer mode is repeatedly used the pre vious time setting is set automatically Use the but...

Page 34: ...the 2 hour AUTO STOP timer it stops 2 hours later automatically To interrupt the test run operation press power button or timer button CAUTION If the unit is out of order during TEST RUN OPERATION check the malfunction with SELF DIAGNOSTIC FUNC TION See page 41 to 45 If an emergency cooling is necessary for the customer use the EMERGENCY OPERATION See the next page 6 EMERGENCY OPERATION When the r...

Page 35: ... SW1 7 Switch for fan speed during thermostat OFF in HEAT operation OFF EXTRA LOW ON LOW SW1 8 Switch for fan speed during thermostat OFF in HEAT operation OFF EXTRA LOW or LOW set with SW1 6 ON LOW or HIGH set with remote controller SW1 9 Switch for detecting abnormalities in the outdoor unit abnormality detection OFF When an abnormality occurs it is detected ON Even if an abnormality occurs it c...

Page 36: ...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 Models SW7 PK12FK PK18 24FK 1 2 3 ON OFF 1 2 3 4 ON OFF PK30 36FK 1 2 3 4 ON OFF ON 230V 240V OFF 220V Used in setting the unit address for group control For further information refer to page 56 1 2 3 4 5 6 ON OFF J1 7 Switch for fan speed ...

Page 37: ...r the next check mode starts 8 2 Control by outdoor coil thermistor 1 Unit control Outdoor coil temperature range for control is from 40 F to 194 F When reading 194 F or above the outdoor coil ther mistor is regarded as short circuited When reading 40 F or below the outdoor coil thermistor is regarded as open cir cuited An open circuit is not sensed for the first 7 min after the compressor start u...

Page 38: ...the outdoor coil thermistor reads 122 F or above the fan output step becomes 255 4 When the high pressure switch 63H1 functions the fan output step becomes 255 After that when the switch returns the fan control returns to the normal control 8 5 Crankcase heater control 1 With jumper wire J3 The crankcase heater is ON from the power is turned to on till the compressor starts and turns to ON 1 hour ...

Page 39: ...evice such as the high pressure switch has already been opened in the power on reset state it is regarded as an open phase In this case all LED are OFF As for three phase model if phase R or T opens microprocessor does not work due to abnormal voltage In this case LED are all ON or all OFF 8 9 100 fan output Fan output is fixed to 255 100 by shorting CN22 However the fan stops during compressor OF...

Page 40: ... 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 Normal resistance should be 82Ω 4 Turn the circuit breaker OFF and then turn ON If the remote ...

Page 41: ...one The check code and the unit address appear alternately 2 The check code U8 means no malfunction has occurred since installation The check code EO means the following conditions The unit address displayed on the remote controller does not apply to any unit power is not supplied to the unit Signal transmitting receiving circuit is abnormal 3 Check and repair the unit according to the check code ...

Page 42: ...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 from t...

Page 43: ...put 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 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 OFF ON 1 2 4 8 16 32 64 128 ON OFF 1 2 4 8 16 32 64 128 ON ON 256 512 1024 2048 4096 8192 16384 32768 ...

Page 44: ...ation 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 output state indication By pressing SW2 duirng ...

Page 45: ... 51C 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 outd...

Page 46: ... beep sound is not heard either 6 2 Phenomena due to wrong wiring between indoor and outdoor units Wrong wiring Thermostat Phenomena Outdoor unit Indoor unit 1 2 1 2 OFF The outdoor unit stops ON Operation stops 9 minutes later the check code P8 appears on the remote controller display OFF Operation stops ON 9 minutes later the check code P8 appears on the remote con troller display Disconnect bet...

Page 47: ...orrectly Indoor outdoor connect ing wire shorts Compressor protector is damaged Deicer is broken 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 damaged Vane motor relay is damaged Limit switch is damaged The siz...

Page 48: ... Units operate according to the latest command from either remote controller 3 Individual control by grouping remote controllers See page 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 i...

Page 49: ...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 50: ...con trollers except during the timer operations 2 Timer operations can be set with either of the two remote controllers However LCD indication appears only on the remote controller used for timer settings 3 If both remote controllers are set for timer operation with different time set tings the timer operation with the shorter remaining time is effective 4 Self diagnostic function is available wit...

Page 51: ...s Belden 9407 Also the cable thickness must be No 22 AWG or above When gathering the power ON OFF switches of air conditioners near the remote controllers you should also install the power ON OFF switch near each unit to prevent electric trouble during servicing 4 REMOTE ON OFF AND INDIVIDUALREMOTE CONTROLS 4 1 Switch function of remote ON OFF switch SW1 Switches between remote ON and OFF ON Start...

Page 52: ...hing to power supply voltage CN51 connector 5P GREEN Power supply Electrical insulation is needed Wiring at the actual place 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 controller Remote controller 3wires 3wires 3w...

Page 53: ...cal parts 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 ielectrical parts box 1 Remove the right side panel 2 Remove the screw of the electrical ...

Page 54: ...he 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 grills 6 Pull the lower side of the grill toward you and slide the upper to the right to remove the grills 7 Removing the drain pan 1 Remove the le...

Page 55: ...hanger toward you and remove the lineflow fan 9 Removing the Elect heater 1 Remove the left and right side panels 2 Remove the grills 3 Remove the drain pan 4 Loosen the screw that fixes the lineflow 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 beari...

Page 56: ...y pulling towards you 2 Blower motor 1 Remove front panel 3 screws Open the panel to a 45 degree angle and lift to remove The panel is clasped at three points on the left side 2 Remove propeller fan 1 set nut 3 Remove fan motor 3 screws Remove lead connectors 2 Outdoor unit PU18EK Photo 1 Photo 2 Photo 3 Outdoor controller board Transformer Capacitor Contactor Terminal block Screws Propeller Motor...

Page 57: ...4 screws 5 Remove motor support 2 screws 6 Remove valve bed 5 screws The valve bed is clasped on the right and left sides Lift to remove 7 Remove the electrical parts box Remove the respective connectors from high pressure switch crank case heater shell thermo and fan motor lead 8 Remove separator 2 screws 9 Remove heat exchanger 2 screws Disconnect the welded section of pipe 10 Remove compressor ...

Page 58: ...wn and remove it by pulling towards you 2 Blower motor 1 Remove front panel 3 screws Open the panel to a 45 degree angle and lift to remove The panel is clasped at three points on the left side 2 Remove propeller fan 1 set nut 3 Remove fan motor 3 screws Remove lead connectors 3 Outdoor unit PU24EK Photo 1 Photo 2 Photo 3 Screws Panel cover Compressor protector Run capacitor 52C relay Terminal blo...

Page 59: ... screws The valve bed is clasped on the right and left sides Lift to remove 7 Remove the electrical parts box Remove the respective connectors from highpressure switch Low pressure switch crank case heater shell ther mo and fan motor lead 8 Remove separator 2 screws 9 Remove heat exchanger 2 screws Remove piping weld zone 10 Remove compressor 3 set nuts Remove the weldment of the compressor suctio...

Page 60: ...g No Wiring Diagram Symbol Q ty set PK12FK 1 2 3 4 5 6 7 8 9 FRONT PANEL AIR FILTER SCREW CAP FILTER CATCH SERVICE PANEL CORNER COVER BOX ASSEMBLY BACK PLATE UNDER COVER 1 2 4 2 1 1 1 1 1 R01 47J 651 R01 47J 500 R01 KV5 096 R01 A20 054 T7W 580 058 R01 KV5 658 R01 KV5 635 R01 KV5 808 R01 KV5 623 ...

Page 61: ... PLATE TOP PLATE DRAIN SOKET BACK PLATE 1 1 2 4 1 1 1 1 1 1 1 2 4 1 1 1 1 1 1 1 2 1 5 1 1 1 1 1 1 1 2 1 5 1 1 1 1 1 R01 12G 661 R01 12G 662 R01 12G 691 R01 16G 692 R01 12G 500 R01 12G 811 R01 16G 811 R01 12G 812 R01 16G 812 R01 12G 641 R01 16G 641 R01 12G 523 R01 12G 808 R01 16G 808 No Parts No Parts Name Specifications Remarks Drawing No Wiring Diagram Symbol Q ty set PK 24FK 30FK 18FK 36FK ...

Page 62: ...NE VANE MOTOR DRAIN HOSE CONTROLLER BOARD FUSE TERMINAL BLOCK 1 1 1 1 1 1 1 1 1 1 1 1 1 1 MF MV I B F1 I B TB2 PK4W40 K 250V 6A 2P L1 N T7W B04 762 R01 KV5 114 R01 KV5 105 R01 KV5 106 R01 566 103 R01 KV5 102 R01 KV5 130 R01 KV5 530 R01 KW1 002 R01 KW2 002 T7W B04 223 R01 71G 527 T7W B04 310 T7W 410 239 T7W 410 716 No Parts No Parts Name Specifications Remarks Drawing No Wiring Diagram Symbol Q ty ...

Page 63: ...ANE SLEEVE CENTER SUPPORT FAN GUARD 1 1 2 1 1 1 1 1 16 2 1 1 1 1 TB5 C T R B 2P 1 2 7µF INDOOR COIL ROOM TEMPERATURE R01 556 246 T7W B04 255 R01 J07 202 T7W B04 799 T7W B07 480 T7W B04 200 R01 12G 523 R01 KV5 135 R01 KV5 038 R01 KV5 059 R01 KV5 092 R01 KV5 048 T7W 52J 675 T7W 51J 675 RT1 RT2 No Parts No Parts Name Specifications Remarks Drawing No Wiring Diagram Symbol Q ty set ...

Page 64: ...iring Diagram Symbol Q ty set PK 24FK 30FK 18FK 36FK 1 2 3 4 5 6 FAN MOTOR RUBBER MOUNT RIGHT LINEFLOW FAN LEFT LINEFLOW FAN SLEEVE BEARING 1 2 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 1 MF MF T7W B02 762 T7W B03 762 R01 12G 105 R01 16G 105 R01 13G 115 R01 17G 115 R01 13G 114 R01 17G 114 R01 005 103 R01 12G 103 ...

Page 65: ...1 1 2 1 1 1 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 1 1 1 1 1 2 1 BG25H301H02 I B F1 2 I B TB2 TB4 C T RT1 RT2 R B 250V 6A 2P L1 N 2P 1 2 8µF 440V ROOM TEMPERATURE INDOOR COIL 12m R01 Z61 102 R01 KV5 102 T7W B04 529 T7W B05 529 R01 12G 223 R01 12G 002 R01 16G 002 R01 12G 621 R01 12G 063 R01 KV5 527 T7W B04 480 T7W B06 480 T7W B05 480 T7W B05 310 T7W 410 239 T7W 410 716 R01 556 246 T7W B02 255 T7...

Page 66: ...EAR PANEL PANEL COVER REAR GUARD BASE ASSEMBLY 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 R01 A00 641 R01 A08 668 R01 A00 668 R01 A00 675 R01 A08 661 R01 A00 661 R01 A08 662 R01 A00 662 R01 A08 682 R01 A00 682 R01 A00 658 R01 A08 698 R01 A00 698 R01 A00 686 No Parts No Parts Name Specifications Remarks Drawing No Wiring Diagram Symbol Q ty set PU ...

Page 67: ...CE PANEL SIDE PANEL LEFT REAR PANEL PANEL COVER REAR GUARD BASE ASSEMBLY 1 1 2 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 R01 A00 641 R01 A11 668 R01 A00 675 R01 A11 661 R01 A11 662 R01 A11 682 R01 A00 658 R01 A11 698 R01 A10 686 R01 A14 641 R01 A14 668 R01 A00 675 R01 A14 661 R01 A14 662 R01 A14 682 R01 A14 658 R01 A14 698 R01 A14 686 No Parts No Parts Name Specifications Remarks Drawing No Wiring Diagram Sym...

Page 68: ...68 PU12EK PU18EK 1 FUNCTIONAL PARTS ...

Page 69: ...1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 2 1 1 1 1 1 1 1 1 1 MF3 O B F3 TB1 TB3 T C3 C3 52C TH3 MC MC CH 63H2 C C 51C 51C S6V 85FPF 250V 6A 3P L1 L2 GR 2P 1 2 3µF 440V 2 5µF 440V S U12UL 215V AC 0 126 0 063 31 5 0 126 0 071 31 5 162 F 5 8 5 8 3 8 RH 247NAB RH 167NAB 240V 30W OPEN psiG 469 30µF 380V 25µF 370V MRA 98881 093 MRA 98880 9030 T7W 850 763 R01 A00 115 T7W A30 315 T7W 410 239 T7W 850 716 R0...

Page 70: ...70 PU24 30EK 1 FUNCTIONAL PARTS ...

Page 71: ...HANGER 2 2 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 1 1 1 2 2 2 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 1 1 1 2 MF3 4 O B F3 TB1 TB3 T C3 4 52C C C TH3 MC MC CH 63H2 S6V 60FPN 250V 6A 3P L1 L2 GR 2P 1 2 4µF 440V S K25UR 40µF 400V 162 F 0 126 0 063 17 3 0 157 0 079 29 1 5 8 3 4 3 8 1 2 NH33NBD NH 41NAD 240V 43W OPEN psiG 469 T7W 851 763 R01 A00 115 T7W A30 315 T7W 410 239 T7W 850 716 R01 556 246 T7W A30 799 R01 653 255...

Page 72: ...72 PU36EK 1 FUNCTIONAL PARTS ...

Page 73: ... 2 1 1 2 1 1 1 1 1 1 1 2 MF3 4 O B F3 TB1 TB3 T C3 4 52C TH3 MC CH C 63H2 VC 086DB 250V 6A 3P L1 L2 GR 2P 1 2 3µF 440V S K25UR 0 157 0 079 17 7 3 4 1 2 NH 47NAD 240V 43W 60µF 360V OPEN psiG 469 T7W 852 763 R01 A00 115 T7W A30 315 T7W 410 239 T7W 850 716 R01 556 246 T7W A30 799 R01 576 255 T7W 867 708 R01 591 425 R01 J01 202 T7W 973 507 R01 943 413 R01 A14 440 R01 670 411 R01 670 410 T97 518 300 T7...

Page 74: ... 00 8 00 Setback operation with 2 degrees of 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 nomal operation will begin 3 Weekly timer function Daily timer function can apply to each day of the week 1 REFRIGERANT PIPES For model PK12 18 24FK Part No Pipe length Pipe size OD Connection method P...

Page 75: ... display Weekly timer display Set back display Daily timer dislay Clock adjustment button Used to adjust the current time Press button to advance the time Each time the button is pressed the time advances by 1 minute Pressing continu ously advances 1 minute in a 0 5 second interval When the lower digit of minute becomes 0 the indication advances in 10 minutes unit button is used for reversing the ...

Page 76: ... accessory remote con troller 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 controller is invalidated Controll is by the centralized remote controller only Initial setting is DUAL LCD Matrix Display This display indicates the operational sta...

Page 77: ... 8 9 10 10 9 8 7 6 5 4 3 2 1 Dip switch SW17 Centralized remote controller Power supply board 5 3 Connection method 1 Connections in the power supply cord 1 Connect the power supply cord to the power supply terminal block and fix it in place with a tie wrap Connect a single phase 200V AV 220 230 240V to A N As E is the GND terminal be sure to ground the earth wire 2 Connect the transmission line t...

Page 78: ...inal block for transmission to program timer or centralized remote controller B W 200 5A A POWER SUPPLY N E POWER SUPPLY CORD Fuse 5A Tie wrap Wiring has to be changed when 200V power 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 Conn...

Page 79: ...New publication effective Jun 1997 Specifications subject to change without notice cCopyright 1997 MITSUBISHI ELECTRIC ENGINEERING CO LTD Issued in Jun 1997 No OC121 5020 ...

Page 80: ...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 ...

Reviews:

No comments