Mitsubishi PK12FK Instruction Manual page 26

MODEL PK12FK
WIRING DIAGRAM
1
SYMBOL
C FAN MOTOR CAPACITOR
CN1<R.B> CONNECTOR (PROGRAM TIMER)
CN2<R.B> CONNECTOR (REMOTE SWITCH)
CN2L<I.B> CONNECTOR (LOSSNAY)
CN51<I.B> CONNECTOR (CENTRALLY CONTROL)
FAN2 CONNECTOR (EMERGENCY OPERATION)
F1<I.B> FUSE (6A 250V)
I.B INDOOR CONTROLLER BOARD
LED1<I.B> LED (DC 12V POWER)
LED2<I.B> LED (DC 5V POWER)
LS LIMIT SWITCH
MF FAN MOTOR
MV VANE MOTOR
R.B REMOTE CONTROLLER BOARD
RT1 ROOM TEMP.THERMISTOR
(32˚F/15k", 77˚F/5.4k" DETECT)
MF
C
I.B
CNV
1 3 5
FAN1
VANE
X4
X4
1 3 5
FAN2
SW2 SW5
ON
OFF
123456 1234
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
controller 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" willbe 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 1 on and 2 off for cooling.
(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.
NAME
LS
115V
MV
1 3 CND CNT
1 3 1 3
POWER TRANS
F1
LED1 12V
X3
POWER
ZNR
X3
SW7 SW3
ON
OFF
12
123
SW6 SW1
10
1234 123456789
: Connector. : Terminal block.
SYMBOL
RT2 PIPE TEMP.THERMISTOR
(32˚F/15k", 77˚F/5.4k" DETECT)
SW1<I.B> SWITCH (MODE SELECTOR)
SW2<I.B> SWITCH (ADDRESS SELECTOR)
SW3<I.B> SWITCH (EMERGENCY OPERATION)
SW5,6<I.B> SWITCH (MODEL SELECTOR)
SW7<I.B> SWITCH (MODEL SELECTOR)
SW17<R.B> SWITCH (ADDRESS SELECTOR)
SW18<R.B> SWITCH (FUNCTION SELECTOR)
T TRANSFORMER
TB2 TERMINAL BLOCK (POWER)
TB4 TERMINAL BLOCK (INDOOR/OUTDOOR CONNECTING LINE)
TB5,6 TERMINAL BLOCK (REMOTE CONTROLLER TRANSMISSION LINE)
X3<I.B> RELAY (VANE MOTOR)
X4<I.B> RELAY (FAN MOTOR)
ZNR VARISTOR
11VAC
14.1VAC
T
CN4T
4 3 2 1
TRANS
LED2 5V
POWER
CN21
PIPE
CN20
INTAKE
OC196A-26
NAME
L1
POWER SUPPLY
~(1 PHASE)
N
AC115V 60Hz
GR
GROUND
TB2
TRANSMISSION WIRES
TB5
DC12V
BLU 2
BLU 1
TB4
TO OUTDOOR UNIT
ORN 2
CONNECTING WIRES
YLW 1
DC12V
R.B
RT2
SW18 TB6
OFF
ON
RT1
CN1
87654321
SW17 5 4 3 2
OFF
CN2
ON
87654321
3 2
1 2
1
1