OC196A-26
X3
87654321
SW18
SW17
87654321
1
2
3
CN1
1
3 2
5 4
R.B
ON
OFF
2
1
TB6
ON
OFF
CN2
GR
LED1 12V
POWER
LED2 5V
POWER
SW7
SW2
123456
10
1234
SW5
21
CN2L
LOSSNA
Y
3
1
LS
MV
TRANSMISSION WIRES
DC12V
1
2
1 3 5
FAN2
HEA
TER
CN24
REMOCON
POWER
CN40
42
1
3
SW1
ON
OFF
123456789
SW6
1234
123
SW3
ON
OFF
12
TO
REMOCON
CN22
1
2
RT2
2
N
L1
I.B
TO OUTDOOR UNIT
CONNECTING WIRES
DC12V
1
T
X4
ZNR
F1
C
MF
1
1
4
3
2
3
5
3
2
1
1
1
3
3
FAN1
POWER
OUTDOOR
TRANS
VANE
V
ANE
TRANS
CND
CN30
CNV
CN4T
CN23
CNT
INTAKE
CN20
PIPE
CN21
CN51
CENTRALL
Y
CONTROL
1
1
2
2
RT1
GROUND
RED
WHT
TB5
BLU
BLU
TB4
TB2
ORN
YLW
BRN
BRN
RED
RED
14.1VAC
11VAC
115V
BLU
RED
WHT
RED
BLK
WHT
RED
POWER SUPPLY
~(1 PHASE)
AC115V 60Hz
X3
X4
SYMBOL
C
CN1<R.B>
CN2<R.B>
CN2L<I.B>
CN51<I.B>
FAN2
F1<I.B>
I.B
LED1<I.B>
LED2<I.B>
LS
MF
MV
R.B
RT1
NAME
FAN MOTOR CAPACITOR
CONNECTOR (PROGRAM TIMER)
CONNECTOR (REMOTE SWITCH)
CONNECTOR (LOSSNAY)
CONNECTOR (CENTRALLY CONTROL)
CONNECTOR (EMERGENCY OPERATION)
FUSE (6A 250V)
INDOOR CONTROLLER BOARD
LED (DC 12V POWER)
LED (DC 5V POWER)
LIMIT SWITCH
FAN MOTOR
VANE MOTOR
REMOTE CONTROLLER BOARD
ROOM TEMP.THERMISTOR
(32˚F/15k
"
, 77˚F/5.4k
"
DETECT)
SYMBOL
RT2
SW1<I.B>
SW2<I.B>
SW3<I.B>
SW5,6<I.B>
SW7<I.B>
SW17<R.B>
SW18<R.B>
T
TB2
TB4
TB5,6
X3<I.B>
X4<I.B>
ZNR
NAME
PIPE TEMP.THERMISTOR
(32˚F/15k
"
, 77˚F/5.4k
"
DETECT)
SWITCH (MODE SELECTOR)
SWITCH (ADDRESS SELECTOR)
SWITCH (EMERGENCY OPERATION)
SWITCH (MODEL SELECTOR)
SWITCH (MODEL SELECTOR)
SWITCH (ADDRESS SELECTOR)
SWITCH (FUNCTION SELECTOR)
TRANSFORMER
TERMINAL BLOCK (POWER)
TERMINAL BLOCK (INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK (REMOTE CONTROLLER TRANSMISSION LINE)
RELAY (VANE MOTOR)
RELAY (FAN MOTOR)
VARISTOR
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, : Connector. : Terminal block.
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.
MODEL PK12FK
1
WIRING DIAGRAM
OC196A--1.qxp 1.12.19 10:35 AM Page 26
