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WIRING DIAGRAM
NOTES :
1. Since the indoor fan motor (MF) is connected with 230V power, using 208V power will require a setting change of the dip switch (SW7<I.B>) on the indoor con-
troller board as shown in fig :
w 1.
Indoor fan motor (MF) for 208V.
2. Since the indoor transformer (T) is connected with 230V power if 208V power is used. Change the wiring connection showing fig : w 2.
When power supply is
3. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
4. Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers.
5. Symbols used in wiring diagram above are,
¤¤ : Connector, / : Terminal block.
6. 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 "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 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 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 automatic vane remains stopped.
If the air outlet is blocked up with the vane, Open it with your hands.
(4)Thermostat will not function. Cold air blows out for defrosting during heating thus do not operate defrosting for along time.
(5)Emergency cooling should be limited to 10 hours maximum.
(The indoor unit heat exchanger may freeze).
(6)After every operation, switch the fan connector to FAN1, and set all dip switches (SW3<I.B>) to OFF.
BG79N687H01
fig w2
fig w1
MF
C
I.B
FAN1
CND
POWER
CNT
TRANS
LED2 5V
POWER
SW3SW7
ZNR
LED1 12V
POWER
CN21
PIPE
CN20
INTAKE
CNGV
VANE
CN22 CN30
CN21
LOSSNAY
CN50
DRAIN
CN27
D.U.M
CN24
HEATER
CN24
HEATER
CN40
CN4T
TRANS
F2
L1
L2
GR
F1
RED
RED
RED
RED
BRN
BRN
RED
BLE
WHT
WHT
YLW YLW
BLK
X4
X4
230V
208V
10VAC
GRN/YLW
GROUND
MODELS
SW7
ON
OFF
TRANSMISSON WIRES
DC12V
TO OUTDOOR UNIT
CONNECTING WIRES-POLAR
DC12V
1234
BLU 2
BLU 1
BRN 3
ORN 2
YLW
R.B
CN2
CN1
GRY
BWN
FS2
H
FS1
REDRED
RED
88H
5
6
3
4
BLU
BLU
TB2
POWER SUPPLY
~(1 PHASE)
AC208/230V 60Hz
GRN/YLWGROUND
I.B
YLW
88H
26H
78
GRY
SW17
09876542321
OFF
ON
TB6
1 2
LCD
1 2 3
1 2 3 4 5 6
1
ON
OFF
1234
18.24FK 30.36FK
POWER SUPPLY
~(1 PHASE)
AC208/230V 60Hz
14.3VAC
T
6
6
1
4 3 2 1
MV
L1
L2
GR
TB2
TB5
TB4
RT2
RT1
5 6
1 2
TO
PEMOCON
REMOCON
POWER
CN51
CENTRALLY
CONTROL
OUTDOOR
4 3 2 1
5 4 3 2 1
3 2 12 1
2 1 2 1
ON
OFF
ON
OFF
12
J1J9J5
1234
SW6
12342 4
SW2
123456
456789
1
ON
OFF
2 3 4
SW7
1
ON
OFF
2 3 4
YELLOW
230V
REDYELLOW
MODELS PKH18/24/30/36FK
WIRING DIAGRAM
SYMBOL
C
NAME
FAN MOTOR CAPACITOR
CN1<R.B> PROGRAM TIMER CONNECTOR
CN2<R.B> REMOTE SWITCH CONNECTOR
CN21<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)
FS1,2 THERMAL FUSE <243°F / 18, 24FK : 10A. 30.36FK : 16A>
H HEATER
I.B INDOOR CONTROLLER BOARD
J1 MODE SELECTOR JUMPER RESISTORS
J5 MODE SELECTOR JUMPER RESISTORS
J9 MODE 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 VANE MOTOR
R.B REMOTE CONTROLLER BOARD
SYMBOL
RT1
NAME
ROOM TEMP. THERMISTOR
(32°F / 15KΩ, 77°F / 5.4KΩ DETECT)
RT2
INDOOR COIL THERMISTOR
(32°F / 15KΩ, 77°F / 5.4KΩ 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 REMOTE CONTROLLER TERMINAL BLOCK
TB6 TRANSMISSION LINE
X4<I.B> FAN MOTOR RELAY
ZNR VARISTOR
26H HEATER THERMAL SWITCH
88H HEATER CONTACTOR
240V
208V
OC120--1.qxp 24/6/97 12:22 AM Page 22