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OC193-23

WIRING DIAGRAM

8

MODEL PCH24EK

1

WIRING DIAGRAM

LOSSNAY

CN2L

SW17

SW18

ON

OFF

87654321

87654321

ON

OFF

TB6

R.B

1

2

5

6

2

1

BLK

BLK

RED

WHT

YLW

GRY

BLK

RED

X4

X5

X6

AC

208V

WHT

RED

YL

W

GRN

GRN

RED

X3

X5

X4

F

ZNR

SW3

SW1

SW2

4 3 2 1

3 2 1

OUTDOOR

CN30

REMOCON

POWER

CN40

TO

REMOCON

CN22

TRANS

VANE

M3

M1M0

S R

5 4 3 2 1

CN50

DRAIN

CN20

INTAKE

CN21

PIPE

OFF
ON

YL

W

ORN

ORN

BLK

BRN

BLK

TH1

TH2

4

2

MF

C

MV

T

POWER SUPPLY
208/230V 60Hz
1 PHASE

L2

L1

BLK

TB1

3

BRN

2

BLU

BLU

TB3

TB2

GROUND

TRANSMISSION WIRES

DC12V

INDOOR UNIT

REMO

TE CONTR

OLLER

I.B

2

1

2

1

9

2

ORN

1

2 1

RED

ORN

654321

987654321

4321

4321

4321

X6

X2

1

YLW

TO OUTDOOR UNIT
CONNECTING WIRES
DC12V(polar)

D.U.M

CN27

M2

LOUVER

GR

Y

GR

Y

ML

5 1

1

2

VANE

POSITION

CN23

RED

BLK

WHT

BLU

BRN

BRN

4 3

BLK

BLK

6 5

2 1

HEATER

CN24

LS

10

SW5 SW6

CENTRALLY

CONTROL

CN51

X2

X3

YL

W

3

1

2

WHT

AC

230V

YL

W

YL

W

88H

RED

BLK

4

6

FS

H

5

3

88H

88H

4 3 2 1

TRANS

CN4T

BRN

BRN

RED

RED

A

C11V

A

C15.5V

8

3

1

26H

7

8

RED

BRN

BRN

GR

Y

GR

Y

YL

W

BLK

BLU

BRN

WHT

RED

ORN

BLK

BLK

GRN

CN2

CN1

1

2

3

1

2

3

4

5

SYMBOL

C
CN1<R.B>
CN2<R.B>
CN27<I.B>
CN51<I.B>
CN2L<I.B>
F<I.B>
FS
H
I.B
LS
MF

NAME

FAN MOTOR CAPACITOR
PROGRAM TIMER CONNECTOR
REMOTE SWITCH CONNECTOR
DRAIN UP MECHA. CONNECTOR
CENTRALLY CONTROL CONNECTOR
LOSSNAY CONNECTOR
FUSE (6A)
THERMAL FUSE (196˚F 15A)
HEATER ELEMENT
INDOOR CONTROLLER BOARD
LIMIT SWITCH
FAN MOTOR (INNER THERMOSTAT)

SYMBOL

ML
MV
R.B
TH1

TH2

SW1<I.B>
SW2<I.B>
SW3<I.B>
SW5<I.B>
SW6<I.B>

NAME

LOUVER MOTOR
VANE MOTOR
REMOTE CONTROLLER BOARD
ROOM TEMPERATURE
THERMISTOR(32˚F/15k

"

, 77˚F/5.4k

"

)

PIPE TEMPERATURE
THERMISTOR(32˚F/15k

"

, 77˚F/5.4k

"

)

MODEL SELECTOR SWITCH
ADDRESS SELECTOR SWITCH
EMERGENCY OPERATION SWITCH
MODEL SELECTOR SWITCH
MODEL SELECTOR SWITCH

SYMBOL

SW17<R.B>
SW18<R.B>
T
TB1~6
X2<I.B>
X3<I.B>
X4<I.B>
X5<I.B>
X6<I.B>
ZNR
26H
88H

NAME

ADDRESS SELECTOR SWITCH
FUNCTION SELECTOR SWITCH
TRANSFORMER
TERMINAL BLOCK
LOUVER MOTOR RELAY
VANE MOTOR RELAY
FAN MOTOR RELAY
FAN MOTOR RELAY
FAN MOTOR RELAY
VARISTOR
HEATER THERMAL SWITCH
HEATER CONTACTOR

NOTES:
1.Since the indoor transformer (T) is connected with 230V power, if 208V power is used, change the wiring connection in the following procedure.

Indoor side transformer (T) for 208V YELLOW

208V RED
230V YELLOW

Indoor fan (MF) for 208V

BLACK

208V BLACK
230V YELLOW

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 terminal.
4.Symbols used in wiring diagram above are, :Terminal block, :connector, :PC board insertion tab.
5.Emergency operation

If a trouble occurs with either the remote controller or the indoor microcomputer and no other trouble exists, emergency operation for cooling or
heating can be performed by changing the setting of dip switch (SW3(I.B)) on the indoor controller board (emergency dry operation is not possible).

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Содержание Mr.Slim PLH42AK

Страница 1: ...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 TM Models Models Ceiling Cassettes Series PLH PLH18AK PLH24AK PLH30AK PLH36AK PLH42AK PLH18FK1 PLH24FK1 PLH30FK1 PLH36FK1 PLH42FK1 Models LIST ED R C Revision PKH18FK PKH24FK PKH30FK PKH36FK is deleted PCH24EK PCH30EK PCH36EK PCH42EK is deleted PKH18FK1...

Страница 2: ......

Страница 3: ...6 OUTLINES AND DIMENSIONS OC193 20 7 REFRIGERANT SYSTEM DIAGRAM OC193 22 8 WIRING DIAGRAM OC193 23 9 OPERATION FLOW CHART OC193 25 10 MICROPROCESSOR CONTROL OC193 29 11 TROUBLESHOOTING OC193 44 12 SYSTEM CONTROL OC193 51 13 DISASSEMBLY PROCEDURE OC193 56 14 PARTS LIST OC193 61 15 OPTIONAL PARTS OC193 68 PCH24EK1 PCH30EK1 PCH36EK1 PCH42EK1 ...

Страница 4: ...ctor ON Addition of Not yet used Addition of LOSSNAY interlocked or not Addition of CN2L PAC SK32PTA EK1 SW17 SW18 SW1 SW5 Connector for LOSSNAY interlocked Program timer No 9 No 0 No 10 No 3 No 4 Dip switch Dip switch Appearances Remote controller Indoor controller 4 3 4 o 2 3 4 o 5 8 5 1 8 o 4 3 4 o 3 4 Differences with OC002 which is a basic service manual ...

Страница 5: ...rature is set unit operation is switched automatically between cooling and heating in accordance with the room temperature In addition the use of outdoor unit fan speed controller enables cooling operation at outdoor temperature as low as 23 F 2 INNOVATIVE SYSTEM CONTROL BY MICROPROCESSORS The most significant feature of the series PCH EK is the advanced microprocessor system control Behind the de...

Страница 6: ...ng the day and stopped together at the end of business 3 REDI CHARGED REFRIGERANT SYSTEM When refrigerant tubing is 100ft or less it is unnecessary to charge additional refrigerant This can contribute to enhance installation quality and reduce installation time 4 MAXIMUM COMFORT AIR CONDITIONING 1 Auto Angle Airflow for Comfortable Air Conditioning PCH units offer a choice of airflow outlets a hor...

Страница 7: ...on 8 EASY INSTALLATION Installation is simple thanks to the easy connection refrigerant lines The indoor unit is easy to mount and requires only a minimum of wiring saving your time labor and money 9 HIGH RELIABILITY AND EASY SERVICING In addition to the self diagnostic function units are also equipped with a 3 minute time delay mechanism an auto restart func tion an emergency operation function a...

Страница 8: ...ting 61 F to 83 F CHECK TEST RUN 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 Swing louver ON and OFF 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 th...

Страница 9: ...the selected setting temperature F CLOCK 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 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 F to 97...

Страница 10: ... 740 830 670 50 43 1 PUH30EK 30 20 0 75 0 75 NH41NAD 14 0 73 0 16 0 17 33 39 55 245 Munsell 2 5Y 8 0 3 N2 208 230 1 60 26 13 16 10 1 8 Munsell 5Y 7 1 208 230 1 60 Capillary tube Reverse cycle With indoor unit Indoor unit remote controller DC12V Indoor unit outdoor unit DC12V Not supplied optional parts 3 4 Flared Flared 164 165 PCH36EK1 35 400 38 000 45 900 47 600 19 600 27 500 29 200 10 9 3 53 3 ...

Страница 11: ...5 3 85 3 74 4 84 4 64 4 44 TC 22 7 21 0 19 8 29 2 27 4 25 4 34 5 32 1 30 2 40 7 37 7 34 7 SHC 14 8 16 6 18 3 16 3 19 1 21 1 19 4 22 5 25 1 21 3 24 9 27 5 TPC 2 95 2 87 2 76 3 73 3 63 3 54 4 30 4 18 4 05 5 20 4 95 4 74 IWB F 75 85 95 105 115 900 0 13 Airflow CFM B F PCH30EK1 900 0 10 PCH36EK1 1 100 0 13 PCH42EK1 1 100 0 11 Notes 1 B F Bypass Factor IWB Intake air wet bulb temperature TC Total Capac...

Страница 12: ... 41 3 42 1 43 5 47 8 48 8 50 6 60 9 61 9 63 5 PC 3 03 2 91 2 79 4 08 3 86 3 69 4 35 4 15 3 93 5 55 5 45 5 34 CA 5 5 6 5 6 8 8 5 7 9 9 6 7 9 9 6 PC 1 6 1 9 2 0 2 5 2 3 2 8 2 3 2 8 IDB F 15 25 35 45 55 65 Auxiliary heater 208V 230V 900 900 1 100 1 100 Airflow CFM PCH30EK1 PCH36EK1 PCH42EK1 Notes 1 IDB Intake air dry bulb temperature CA Capacity x103 Btu h PC Power Consumption kW 2 When booster heate...

Страница 13: ... DB temperature F 2 PERFORMANCE CURVE NOTES A point on the curve shows the reference point PCH24EK1 COOLING CAPACITY PCH24EK1 HEATING CAPACITY PCH30EK1 COOLING CAPACITY PCH30EK1 HEATING CAPACITY Total power consumption kW Total capacity x10 3 Btu h Outdoor intake air DB temperature F 36 30 24 18 3 0 2 5 2 0 1 5 63 67 71 63 67 71 SHF 0 73 32 35 45 55 65 67 75 85 95 105 115 Indoor intake air WB temp...

Страница 14: ...0 75 75 70 65 Not include booster heater 2 8kW 15 25 35 45 55 65 Indoor intake air DB temperature F Indoor intake air DB temperature F Total power consumption kW Total capacity x10 3 Btu h Outdoor intake air DB temperature F 54 48 42 36 4 0 6 0 5 0 63 67 71 63 67 71 SHF 0 67 32 35 45 55 65 67 75 85 95 105 115 Indoor intake air WB temperature F Indoor intake air WB temperature F Total power consump...

Страница 15: ... 90 100 110 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 Indoor DB temperature F 86 80 75 70 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 psi G Condensing pressure 30 35 20 25 45 55 65 40 50 60 70 Outdoor ambient temperature...

Страница 16: ...bient 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 Indoor DB temperature F 86 80 75 70 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 psi G Condensing pressure 30 35 20 25 45 55 65 40 50 60 70 Outdoor ambient temperature DB F 75 70 65 Indoor ...

Страница 17: ...bient 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 Indoor DB temperature F 86 80 75 70 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 psi G Condensing pressure 30 35 20 25 45 55 65 40 50 60 70 Outdoor ambient temperature DB F 75 70 65 Indoor ...

Страница 18: ...bient 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 Indoor DB temperature F 86 80 75 70 350 340 330 320 310 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 psi G Condensing pressure 30 35 20 25 45 55 65 40 50 60 70 Outdoor ambient temperature DB F 75 70 65 Indoor ...

Страница 19: ...7 000 Heating PCH24EK1 208 230 3 06 0 7 0 75 0 75 14 0 13 3 232 76 158 112 48 149 80 67 55 54 1 485 830 95 30 000 0 68 60 Cooling 208 230 3 13 0 7 9 8 10 8 0 75 0 75 14 3 13 5 243 58 168 115 35 156 70 60 105 1 470 920 47 43 33 000 Heating PCH30EK1 208 230 3 53 1 3 0 75 0 75 16 1 14 3 235 77 164 113 48 154 80 67 58 57 1 505 1 100 95 35 400 0 73 60 Cooling 208 230 3 4 1 3 10 8 12 0 0 75 0 75 14 7 14...

Страница 20: ...0 0 70ft 0 0 0 0 85ft 0 0 0 0 100ft 0 0 0 0 115ft 2 5 5 5 130ft 4 10 10 10 150ft 7 16 16 16 164ft 9 20 20 20 Refrigerant piping length one way PCH24EK1 PCH30EK1 PCH36EK1 PCH42EK1 9 lbs 15 oz 10 lbs 2 oz 10 lbs 9 oz 12 lbs 9 oz 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 OPERATION Min ...

Страница 21: ...OXIMATE 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 0 002 MICRO BAR BAND CENTER FREQUENCIES Hz PCH36EK1 Hi Lo NOTCH 51 45 SPL dB 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 ...

Страница 22: ...OC193 20 6 OUTLINES AND DIMENSIONS Indoor unit PCH24 30EK1 Unit inch ...

Страница 23: ...OC193 21 Indoor unit PCH36 42EK1 Unit inch ...

Страница 24: ... 0 071O15 7 Restrictor valve Capillary tube Refrigerant pipe option 3 8 with heat insulator Refrigerant pipe option 5 8 with heat insulator Strainer Indoor coil thermistor RH2 Distributor Restrictor valve Capillary tube Refrigerant pipe option 1 2 with heat insulator Refrigerant pipe option 7 8 PCH42EK 3 4 PCH30 36EK with heat insulator Strainer PCH30EK1 0 157O 0 070O15 7 PCH36EK1 0 157O 0 094O21 ...

Страница 25: ...MIT SWITCH FAN MOTOR INNER THERMOSTAT SYMBOL ML MV R B TH1 TH2 SW1 I B SW2 I B SW3 I B SW5 I B SW6 I B NAME LOUVER MOTOR VANE MOTOR REMOTE CONTROLLER BOARD ROOM TEMPERATURE THERMISTOR 32 F 15k 77 F 5 4k PIPE TEMPERATURE THERMISTOR 32 F 15k 77 F 5 4k MODEL SELECTOR SWITCH ADDRESS SELECTOR SWITCH EMERGENCY OPERATION SWITCH MODEL SELECTOR SWITCH MODEL SELECTOR SWITCH SYMBOL SW17 R B SW18 R B T TB1 6 ...

Страница 26: ...EATER ELEMENT INDOOR CONTROLLER BOARD SYMBOL LS MF ML MV R B TH1 TH2 SW1 I B SW2 I B SW3 I B SW5 I B NAME LIMIT SWITCH FAN MOTOR INNER THERMOSTAT LOUVER MOTOR VANE MOTOR REMOTE CONTROLLER BOARD ROOM TEMPERATURE THERMISTOR 32 F 15k 77 F 5 4k PIPE TEMPERATURE THERMISTOR 32 F 15k 77 F 5 4k MODE SELECTOR SWITCH ADDRESS SELECTOR SWITCH EMERGENCY OPERATION SWITCH MODEL SELECTOR SWITCH SYMBOL SW6 I B SW1...

Страница 27: ...an STOP Auxiliary heater OFF Compressor OFF Fan STOP Four 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 lEO Signal transmitting receiving error lP1 Room temperature thermistor malfunction lP2 Indoor coil thermistor malfunction lP4 Drain sensor malfunction lP5 Drain over flow lP6 Coil ...

Страница 28: ...oor coil temperature 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 opera tion changes during auto vane SWING...

Страница 29: ...ible 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 10 minute compressor OFF Compressor ON time set Compressor ON Fan speed LOW 1...

Страница 30: ...uxiliary heater ON 6 minute restart prevention Allowance set Compressor OFF Indoor piping 95 F or higher HOT adjust 6 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 T0 COOL mode HEAT mode...

Страница 31: ... control Crankcase 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 tem perature data from indoor unit Processes orders and data Controls indoor...

Страница 32: ...he indoor coil temperature is 30 F or less the compressor starts in 6 minutes NOTE By turning OFF the dip switch SW1 3 on indoor controller board the start temperature of coil frost prevention changes from 34 F to 36 F How to operate 1 Press POWER ON OFF button 2 Press the MODE button to display COOL 3 Press the SET TEMP button to set the desired temperature NOTE Set temperature changes 2 F when t...

Страница 33: ...sensing switch If the frequency cannot be judged immediately for some reason the sensing operation continues for 10 minutes with the vane motor at ON If the frequency cannot be judged yet after 10 minute sensing the vane motor turns to OFF But the AIR DISCHARGE DIRECTION display continues to be indicated 2 During cooling operation When the cooling operation starts the horizontal discharge is autom...

Страница 34: ... coil temperature minus room temperature 9 0 9 RANGE A RANGE B RANGE C degree 5 Drain pump control The drain pump works in COOL or DRY operation When operation stops or changes to HEAT mode the drain pump con tinues to operate for 3 more minutes The drain pump does not work in check mode Drain sensor When both the drain pump and unit are operating the drain sensor detects the temperature This temp...

Страница 35: ...t overload the compressor will not start within 3 minutes after stop 2 The compressor runs when room temperature is higher than set temperature The compressor stops when room temperature is equal to or lower than the set temperature The compressor maintains the previous state when the room temperature minus the set temperature is 0 F or more or lower than 2 F 3 The compressor stops in check mode o...

Страница 36: ... 75 F 79 F with 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 ope...

Страница 37: ...ature becomes equal to set temperature Room temperature falls below set tem perature Even if the room temperature falls below 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 MODE button to display HEAT 3 Press the SET TEMP button to set the desired temperature NOTE The ...

Страница 38: ...justment is a warm up for HEAT operation Start conditions The hot adjustment works under any of the following conditions lHEAT operation starts lDefrosting ends lThermostat turns ON Hot adjustment Initially the indoor fan runs on EXTRA LOW speed When 5 minutes have passed or the indoor coil temperature exceeds 95 F the fan speed changes to LOW 2 minutes later the hot adjustment ends Then the fan s...

Страница 39: ...erature difference is still in RANGE C the outdoor unit is determined to be abnormal When RANGE B does not change to RANGE A after 20 minutes have passed since RANGE C had outdoor unit is determined to be abnormal iii During compressor OFF Not detecting abnormalities 6 Indoor coil temperature abnormality detection An abnormality can be detected during compressor ON except for the following For the...

Страница 40: ...utside 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 ...

Страница 41: ...GH AUTO RETURN When discharge 3 or 4 continues for 1 hour with the fan speed at LOW the discharge direction turns to the horizontal discharge automatically NOTE1 After that the discharge 3 or 4 is available by setting with the remote controller and it continues for 1 hour NOTE2 If the discharge direction changes from 3 or 4 the direction returns to the hori zontal discharge when 1 hour has passed ...

Страница 42: ...k for refrigerant 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 0M Attention Do not use the air conditioner if resistance is less than 1 0M How to operate 1 Turn ON main breaker 2 Press TEST RUN button twice TEST RUN is displayed on remote...

Страница 43: ...y 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 SW3 setting 2 Turn ON the outdoor unit breaker and then turn ON the indoor unit brea...

Страница 44: ... without vane ON Unit with auto vane SW1 4 Switch for drain pump OFF The drain pump works in only cooling mode ON The drain pump works in both cooling and heating mode For heat pump models SW1 5 Switch to change the temperature to start coil frost prevention OFF 36_F For previous special models ON 34_F For all current models 2 SW18 Model selector SW18 1 Switch for timer mode setting OFF Single day...

Страница 45: ...tch for AUTO RESTART FUNCTION OFF This function does not work ON This function works 2 SW2 Address selector Use SW2 to set unit address for group control 3 SW3 Emergency operation switch 4 SW5 Model selector SW5 1 OFF For models without automatic swing mechanism ON For models with automatic swing mechanism SW5 2 OFF For models with heating mode and cooling mode including series PCH ON For models w...

Страница 46: ...t disappears 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 If normal the value should be 82 4 Turn the circuit breaker OFF and then turn ...

Страница 47: ...displayed on the remote controller does not apply to any unit lpower is not supplied to the unit lSignal transmitting receiving circuit is abnormal 4 Check and repair the unit according to the check code Refer to page OC193 46 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 units...

Страница 48: ... indoor controller board P5 Malfunction of drain pump 1 Malfunction of drain pump 2 Damaged drain sensor 1 Check the drain pump 2 lCheck the drain sensor lCheck the drain sensor heater If normal its resistance should be 82 If normal replace the indoor controller board P6 Coil frost protection has worked 1 Short cycle of air cycle 2 Dirty air filter 3 Damaged fan 4 Abnormal refrigerant 1 Clear the ...

Страница 49: ...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...

Страница 50: ...essor protector has broken Deicer has broken Remote controller has broken Transmission wire is badly connected Transmission wire has broken Connector is badly con nected Indoor terminal block is badly connected Remote controller ter minal block is badly connected Vane motor has broken Vane motor relay has broken Limit switch has broken Size of cam is not proper Refer to check code on remote contro...

Страница 51: ...rmistor TH1 Liquid pipe thermistor TH2 Normal 4 3k 9 6k Abnormal Open or short Normal Connector Abnormal 186 214 24EK1 30EK1 36 42EK1 140 160 140 160 Open or short Orange Red White Red Yellow Red Blue Red Orange Red White Blue Yellow 3 5 1 2 4 Measure the resistance between the terminals using a tester Fan motor 1 1 2 2 3 3 Red White Black Relay connector Protector 24EK1 45 0 44 8 30EK1 45 0 44 8 ...

Страница 52: ...perature F Resistance K Thermistor Characteristic graph Room temperature thermistor TH1 Liquid pipe thermistor TH2 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 2k 86 F 4 3k 104 F 3 0k Thermistor for lower temperature 1 273 1 273 t 32 1 8 ...

Страница 53: ...d individually by each remote controller During remote ON OFF control a message of CENTRALLY CONTROLLED is displayed on the LCD of the remote controller This method is available for both one unit control and sev eral units control 4 Individual control by grouping remote controllers See page OC193 54 Unit Remote controller Unit Unit By grouping the remote controllers to one place several units inst...

Страница 54: ...eration stops due to system error Be sure to set SW2 correctly following the instructions below 1 Each lever of SW2 shows the number as follows SW2 1 1 SW2 4 8 SW2 2 2 SW2 5 16 SW2 3 4 SW2 6 32 2 Total number of levers turned to ON shows the address of the unit If you turn ON SW2 1 and SW2 2 the unit address is set as No 3 3 In this way set from the master unit to the last unit Do not forget to se...

Страница 55: ...to set one remote controller for main controller and the other for sub controller using dip switch SW17 7 of the remote controller 3 1 How to set SW17 7 1 For the main remote controller turn SW17 7 OFF See Figure 5 2 For the sub remote controller turn SW17 7 ON 3 2 Remote controller LCD indication 1 The same indications always appear on both the main and sub remote con trollers excepting in the ti...

Страница 56: ...ent places without a special control board Remote control cables can be extended up to 550 yards When the cable length exceeds 39 ft use the double insulated two core cable such as Belden 9407 and 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 p...

Страница 57: ...g 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 33 feet 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 ...

Страница 58: ...ide panel LEFT 4 Pull out the panel toward you to remove 3 Removing the lower panel 1 Remove the lower panel set screws 2 pcs on each side and 3 pcs at the rear total 7 pcs W PCH24EK has 4 pcs at the rear and 2 pcs on each side total 8 pcs 4 Removing the electrical box 1 Remove the air intake grille Refer to 1 2 Remove the support bar set screw and remove the bar See figure 4 3 Loose the lead clam...

Страница 59: ...he screw on the cover L Then remove the box corners 6 This enables checking the inside of the electrical box See figure 6 Indoor controller board I B Transformer Fan capacitor C1 Fuse Terminal block Power Terminal block Control Terminal block Remote controller Figure 5 Figure 6 Electrical box Set screws 2 pcs Box cover set screws 3 pcs Fan lead wire Louver motor lead wire Connector for fan lead Te...

Страница 60: ...d wire terminals from both ends of the bro ken disconnected heater element 2Remove the heater element clamping metal fixture screws 3Pull out the heater element then replace 7 Removing the front panel assembly After removing the drain pan 1 Disconnect the lead connector for louver motor at the right side 2 Pull the lower louver forward and unhook the clamps 2 points at the center 3 Remove the fron...

Страница 61: ...er louver 1 Remove a fixing screw of the left side box and the lover panel 2 Pull the left side box outward 3 Remove the auto vane shaft from the joint 4 Slide the auto vane out to the right side 12 Removing the vane crank The vane crank will be removed easily after removed the auto vane 13 Removing the front louver 1 Pull and unhook the louver toward you Clasps are 5 pcs Photo 6 Photo 7 Photo 8 V...

Страница 62: ...onnect the connector CN 21 from the controller board in the electrical box 5 Take out the thermistor 14 Removing the fan motor After remove the electrical box covers 1 Disconnect the lead connector for fan 2 Pull out the room temp thermistor from the casing A See photo 9 3 Loose the shaft joint set screws 2 pcs with a hexagonal wrench size 3mm 4 Unhook the casing A by pushing 2 points for each sid...

Страница 63: ...60 T7W 045 255 T7W 055 255 R01 556 246 T7W E02 716 R01 377 246 R01 998 246 T2W 359 342 R01 673 215 R01 479 215 T7W 430 200 T7W E01 713 T7W 351 077 T7W E03 049 R01 L72 095 T7W 556 305 T7W A00 305 INDOOR CONTROLLER BOARD INDOOR CONTROLLER BOARD FUSE CONTROLLER CASE TRANSFORMER FAN MOTOR CAPACITOR FAN MOTOR CAPACITOR TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK HEATER CONTACTOR HEATER ...

Страница 64: ...R01 29J 116 R01 G12 100 R01 621 103 R01 055 110 T7W E02 110 R01 G18 114 T7W E00 114 T7W 503 300 T7W 051 300 T7W 507 300 R01 046 700 R01 046 706 R01 W58 706 T7W 23J 706 R01 J07 202 R01 J21 202 T7W E17 202 T7W 430 480 T7W 431 480 T7W 051 529 R01 83E 126 R01 G24 145 R01 20J 303 R01 30J 303 FAN MOTOR RUBBER MOUNT JOINT SHAFT JOINT SHAFT FAN SHAFT SLEEVE BEARING CASING SET CASING SET SIROCCO FAN SIROCC...

Страница 65: ...6 R01 G24 100 R01 705 103 R01 G18 114 T7W E00 114 R01 G24 114 T7W E01 114 R01 055 110 T7W E02 110 T7W 509 300 R01 046 700 R01 986 706 R01 W58 706 T7W 23J 706 R01 J07 202 R01 J21 202 T7W E17 202 T7W 432 480 T7W 433 480 T7W 055 529 R01 830 126 R01 G24 145 R01 20J 303 R01 30J 303 FAN MOTOR RUBBER MOUNT JOINT SHAFT JOINT SHAFT FAN SHAFT SLEEVE BEARING SIROCCO FAN SIROCCO FAN SIROCCO FAN SIROCCO FAN CA...

Страница 66: ...OC193 64 PCH24EK PCH30EK STRUCTURAL PARTS PCH24EK1 PCH30EK1 10 13 8 11 8 7 9 12 2 14 4 5 24 25 26 27 17 18 20 22 21 19 23 7 6 1 3 15 16 29 ...

Страница 67: ...1 R01 A25 500 R01 055 501 T7W 051 501 R01 029 061 R01 029 054 T7W 052 676 R01 051 001 R01 045 003 R01 029 089 R01 029 088 R01 045 090 R01 029 086 R01 029 085 R01 045 087 R01 051 002 R01 055 068 R01 055 067 R01 029 222 T7W E01 222 T7W 029 223 R01 029 060 R01 045 808 R01 82E 656 SIDE PANEL LEFT SIDE PANEL RIGHT FRONT PANEL UPPER FRONT PANEL LOWER LOUVER SUPPORT LOWER PANEL INTAKE GRILL AIR FILTER AI...

Страница 68: ...OC193 66 PCH36EK PCH42EK STRUCTURAL PARTS PCH36EK1 PCH42EK1 10 11 8 12 6 8 7 9 2 13 14 18 26 27 25 28 19 21 23 22 6 5 1 3 15 4 16 17 20 24 30 ...

Страница 69: ...5 500 R01 055 501 T7W 051 501 T7W 056 676 R01 029 061 R01 029 054 R01 045 048 R01 055 001 R01 055 003 R01 029 089 R01 029 088 R01 045 090 R01 029 086 R01 029 085 R01 055 087 R01 055 002 R01 055 068 R01 055 067 R01 029 222 T7W E01 222 T7W 029 223 R01 029 060 R01 045 808 R01 82E 656 SIDE PANEL LEFT SIDE PANEL RIGHT FRONT PANEL UPPER FRONT PANEL LOWER LOWER PANEL INTAKE GRILL INTAKE GRILL 2 AIR FILTE...

Страница 70: ...TA 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 N...

Страница 71: ...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 t...

Страница 72: ......

Страница 73: ...right 2000 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in Jun 2001 No OC255 REVISED EDITION B 20 Distributed in Mar 2001 No OC255 REVISED EDITION A 20 Distributed in Dec 2000 No OC255 Made in Japan New publication effective Jun 2001 Specifications subject to change without notice ...

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