Mitsubishi PK12FK Instruction Manual page 27

MODELS PK18/24/30/36FK
SYMBOL
C FAN MOTOR CAPACITOR
CN1<R.B> CONNECTOR (PROGRAM TIMER)
CN2<R.B> CONNECTOR (REMOTE SWITCH)
CN2L<I.B> CONNECTOR (LOSSNAY)
CONNECTOR (DRAIN LIFT-UP MECHANISM)
CN27<I.B>
CONNECTOR (CENTRALLY CONTROL)
CN51<I.B>
FUSE (6A 250V)
F1,2<I.B>
INDOOR CONTROLLER BOARD
I.B
J1 JUMPER RESISTORS (MODE SELECTOR)
J5 JUMPER RESISTORS (MODEL SELECTOR)
J9 JUMPER RESISTORS (MODEL SELECTOR)
LED1<I.B> LED (DC 12V POWER)
LED (DC 5V POWER)
LED2<I.B>
FAN MOTOR
MF
VANE MOTOR
MV
REMOTE CONTROLLER BOARD
R.B
MF
C
I.B
FAN1 1 3 5
X4
X4
ZNR
J5
J9
SW2
ON
OFF
123456 4
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" 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.
(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.
, PK18/24/30/36FK
1
NAME
115V
CND
CNT
1 3 1 3
POWER
TRANS
F2 F1
LED2 5V
POWER
LED1 12V
POWER
SW7 SW3
ON
OFF
1234 12
J1
SW6
4 5 6 7 8 9
1234
MODELS PK18FK , FK PK24FK
1 2
ON
ON
SW7
OFF
OFF
1234
: Connector.
OC196A-27
WIRING DIAGRAM
2
SYMBOL
RT1 ROOM TEMP.THERMISTOR
(32˚F/15k", 77˚F/5.4k" DETECT)
RT2 PIPE TEMP.THERMISTOR
(32˚F/15k", 77˚F/5.4k" DETECT)
SWITCH (ADDRESS SELECTOR)
SW2<I.B>
SWITCH (EMERGENCY OPERATION)
SW3<I.B>
SWITCH (MODEL SELECTOR)
SW6<I.B>
SWITCH (MODEL SELECTOR)
SW7<I.B>
SW17<R.B> SWITCH (ADDRESS SELECTOR)
SW18<R.B> SWITCH (FUNCTION SELECTOR)
T TRANSFORMER
TB2 TERMINAL BLOCK (POWER)
TERMINAL BLOCK (INDOOR/OUTDOOR CONNECTING LINE)
TB4
TERMINAL BLOCK (REMOTE CONTROLLER TRANSMISSION LINE)
TB5,6
RELAY(FAN MOTOR)
X4<I.B>
VARISTOR
ZNR
10VAC
14.3VAC
6
T
6
1 CN4T
4 3 2 1
TRANS
CN6V
VANE
CN21
PIPE
CN20
INTAKE
, FK PK30FK , FK PK36FK , FK
1 2 1 2 1 2
ON ON
OFF OFF
1234 1234 1234
: Terminal block.
NAME
L1
POWER SUPPLY
~(1 PHASE)
N
AC115V 60Hz
GR
GROUND
TB2
MV
TRANSMISSION WIRES
DC12V
TB5
BLU 2
BLU 1
TB4
TO OUTDOOR UNIT
ORN 2
CONNECTING WIRES
YLW 1
DC12V
R.B
RT2
SW18
OFF
ON
RT1
87654321
SW17
OFF
ON
87654321
TB6
1 2
CN1
5 4 3 2 1
CN2
3 2 1