Wiring Diagram - Mitsubishi PK12FK Instruction Manual

8

WIRING DIAGRAM

MODEL PK12FK WIRING DIAGRAM
MF
C
I.B
FAN1 5
1 3
X4
X4
FAN2
1 3 5
SW2 SW5
ON
OFF
123456 1234
SYMBOL
C FAN MOTOR CAPACITOR
CN1<R. B> PROGRAM TIMER CONNECTOR
CN2<R. B> REMOTE SWITCH CONNECTOR
CN2L<I. B> LOSSNAY CONNECTOR
CN51<I. B> CENTRALLY CONTROL CONNECTOR
FAN2 EMERGENCY OPERATION CONNECTOR
F1<I. B> FUSE (6A 250V)
I. B INDOOR CONTROLLER BOARD
LCD<R. B> LIQUID CRYSTAL DISPLAY
LED1<I. B> LED (DC 12V POWER)
LED2<I. B> LED (DC 5V POWER)
LS LIMIT SWITCH
MF FAN MOTOR
NV VANE MOTOR
R. B REMOTE CONTROLLER BOARD
ROOM TEMP. THERMISTOR
RT1
(32˚F/15KΩ, 77˚F/5.4KΩ DETECT)
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,
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 "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) Switch the fan connector on the indoor controller board from FAN 1 to FAN 2.
(2) Set the dip switch (SW3<I. B>) on the indoor controller board to
(3) Turn on outdoor unit side circuit breaker, then indoor unit side circuit breaker, in this order.
(4) During emergency operation, indoor fan runs at high speed but automatic vane remains stop. If vane is closed, open the vane by hands.
(5) Thermostat will not function.
(6) Emergency cooling should be limited 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.
LS
115V
MV
CND
CNT
1 3
1 3 1 3
POWER
TRANS
CNV
F1
VANE
LED1 12V
POWER
ZNR
SW7 SW3
ON
OFF
123 12
SW6 SW1
1234 123456789
10
NAME
: Connector. / : Terminal block.
1 on and 2 off for cooling.
GRN/YLW
11VAC
14.1VAC
T
CN4T
4 3 2 1
TRANS
LED2 5V
POWER
CN21
PIPE
CN20
INTAKE
SYMBOL
PIPE TEMP. THERMISTOR
RT2
(32˚F/15KΩ, 77˚F/5.4KΩ DETECT)
SW1<I. B> MODE SELECTOR
SW2<I. B> ADDRESS SELECTOR
SW3<I. B> EMERGENCY OPERATION
SW5, 6<I. B> MODEL SELECTOR
SW7<I. B> MODEL SELECTOR
SW17<R. 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
OC196A-24
L1
POWER SUPPLY
~ (1 PHASE)
N
AC115V 60Hz
GR
GROUND
TB2
TRANSMISSION WIRES
TB5
DC12V
2
BLU
1
BLU
TB4
2
ORN TO OUTDOOR UNIT
1 CONNECTING WIRES
YLW
DC12V
RT2
R.B
TB6
1 2 3
1 2
RT1
CN2
SW5 SW4 SW1
LCD
SW7 SW3
SW9 SW6
SW10 SW8
CN1
SW15 SW14
1 2 3 4 5 6
SW17
OFF
ON
0987654321
NAME