OC275-16
8
WIRING DIAGRAM
Indoor Unit
PK18/24/30/36FL3
GR
L1
N
TB2
POWER SUPPLY
~(1PHASE)
AC115V 60Hz
GROUND
WIRELESS REMOTE CONTROLLER
W.R
SW7
ON
OFF
OFF
ON
123
24FL3
MODELS
ON
OFF
ON
OFF
36FL3
123
123
123
30FL3
18FL3
ON
OFF
[Check items]
(1)Make sure that no other trouble exist the outdoor unit.Trouble with the outdoor unit prevents emergency operation.
(2)Make sure that there is no trouble with the indoor fan.
Emergency operation will be continuous run with the power ON/OFF(ON/OFF with the remote controller is not possible).
(7)Movement of the vanes does not work in emergency operation,therefore you have to slowly set them manually to the
appropriate position.
[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.
(3)During emergency operation indoor fan runs at high speed but auto-vane does not work.
(4)Thermostat will not function.
(5)Emergency cooling should be limited to 10 hours maximum (the indoor unit heat exchanger may freeze).
(6)After every emergency operation,set all dip switches(SW3<I.B>) to OFF.
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.
NOTES:
LED(DC5V POWER)
X4
RELAY(FAN MOTOR)
LED1
LED2
LED(DC12V POWER)
SW9
SWITCH(MODEL SELECTOR)
F1,F2
VARISTOR
ZNR
SYMBOL
NAME
I.B
INDOOR POWER BOARD
INDOOR CONTROLLER BOARD
CN2L
SW1
SW2
SW6
FC
CONNECTOR(LOSSNAY)
SWITCH(FUNCTION SELECTOR)
SWITCH(ADDRESS SELECTOR)
SWITCH(MODEL SELECTOR)
FAN PHASE CONTROL
P.B
CN51 CONNECTOR(CENTRALLY CONTROL)
SW3
SWITCH(EMERGENCY OPERATION)
SW5
SWITCH(MODEL SELECTOR)
SW7
SWITCH(TWIN/TRIPLE SELECTOR)
SW8
SWITCH(OPTION)
BZ
TB2~TB6
TERMINAL BLOCK
ROOM TEMP.THERMISTOR
RT1
RT2
PIPE TEMP.THERMISTOR/LIQUID
W.B
REMOTE CONTROLLER BOARD
BUZZER
LED(RUN INDICATOR)
LED1
SWITCH(COOLING ON/OFF)
SW2
RECEIVING UNIT
RU
NAME
SYMBOL
VANE MOTOR
MV
FAN MOTOR
MF
CAPACITOR(FAN MOTOR)
C
12
OFF
ON
1
5
4
23
23
1
234
1
1
6
5
4
3
2
1
4
3
2
1
6
5
4
3
2
10
9
8
7
6
5
4
3
2
1
ON
OFF
ON
OFF
ON
OFF
9
SW2
SW1
RU
BZ
LED2
LED1
W.B
CNB
CONTROLLER
W.R
REMOTE
6
6
[LEGEND]
2
1
3
2
1
3
2
1
2
1
3
1 2
1 2
1 2
4
3
2
1
2
1
3
1
3
1
2
1
2
1
SW3
SW9
SW7
SW6
SW1
SW8
SW5
RT2 RT1
F2
F1
YLW
ORN
SW2
CN51
CENTRALLY
CONTROL
(WHT)
CN40
REMOCON
POWER
LED1 LED2
CN2L
LOSSNAY
OUTDOOR UNIT
TRANSMISSION WIRES DC12V
TB3
TB4
ZNR
OUT
DOOR
CN30
WHT
BLK
CN2D
(WHT)
GRN/YLW
RED
BLU
RED
BLU
P.B
TRANS
(DC13.1V)
CN2S (WHT)
CNSK(RED)
I.B
MF
C
1 3 5
FC
MV
X4
X4
WHT
RED
BLK
WHT
BLK
FAN
(WHT)
INTAKE
CN20
(RED)
POWER
CNDK
(WHT)
POWER
CND
(RED)
WIRELESS
CN90
(WHT)
REMOCON
CN22
(BLU)
PIPE
CN21
(WHT)
VANE
CN6V
(WHT)
DRAIN
CN31
(WHT)
FUSE(6A/250V)
(32
°
F/15k
'
77
°
F/5.4k
'
DETECT)
(32
°
F/15k
'
,77¯
°
F/5.4k
'
DETECT)
(AC115V)
(BLU)
OC275--1.qxp 01/12/14 3:06 PM Page 16
