16
PKA-A12GA
2
PKA-A18GA
2
PKA-A12GAL
2
PKA-A18GAL
2
Please set the voltage
using the remote controller.
For the setting method,
please refer to the indoor
unit Installation Manual.
INTAKE
CN20
(RED)
LIQUID
CN21
(WHT)
PIPE
CN29
(BLK)
TH5
TH1
TH2
REMOCON
CN22
(BLU)
TB5
R.B
TRANSMISSION WIRES DC12V
For A12/18GAL
For A12/18GA
SWE
ON
OFF
SW2 SW1
LED3 LED2 LED1
ZNR
FUSE
CN24
(YLW)
MV
6
W.B
BZ
CNB
RECEIVER
RU
LED1 LED2 SW2 SW1
9
9
FAN
(WHT)
1
1
1
1
1
1
1
1
1
2
3
2
1
2
1
2
1
2
3
3
2
3
3
2
3 5
BLK
WHT
WHT
RED
RED
C
X4
BCR
TO
OUTDOOR
UNIT
TB4
YLW
ORN
YLW
ORN
BRN
YLW
ORN
BLK
WHT
BRN
ORN
P.B
I.B
POWER
CNDK
(RED)
CNSK
(RED)
DC13.1V
CN2S
(WHT)
POWER
CND
(ORN)
POWER
CN2D
(WHT)
A-CONTROL
CN3C
(BLU)
Refer to tables 1 and 2
for service PCB.
SW1
Table 1
Service board
SW2
Table 2
Service board
Service board
1 2 3 4 5
ON
OFF
1 2 3 4 5
ON
OFF
MODELS
PKA-
A12GA(L)
MODELS
PKA-
A18GA(L)
1 2 3 4 5
ON
OFF
+
1
1
2
1
2
CN30
(BLK)
1
3
MF
M
1~
M
U
t
t
t
2
1
TB6
2
1
S2
S3
S1
CN32(
WHT)
CN2L(
RED)
1
3
1
4
CN51(
WHT)
CN41(
WHT)
5
1
9
1
6
1
VANE
CN6V
(GRN)
WIRELESS
CN90
(WHT)
P.B
INDOOR POWER BOARD
SYMBOL
[LEGEND]
NAME
I.B
INDOOR CONTROLLER BOARD
FUSE
FUSE (6.3A/250V)
ZNR
VARISTOR
CN2L
CONNECTOR<LOSSNAY>
CN32
CONNECTOR<REMOTE SWITCH>
CN41
CONNECTOR<HA TERMINAL-A>
CN24
CONNECTOR<BACK-UP HEATING>
CN30
CONNECTOR<LLC>
CN51
CONNECTOR<CENTRALLY CONTROL>
SW1
SWITCH <MODEL SELECTION>
+
See Table 1.
SW2
SWITCH <CAPACITY CODE>
+
See Table 2.
SWE
SWITCH<EMERGENCY OPERATION>
X4
RELAY<FAN MOTOR>
BCR
POWER SUPPLY<R.B>
LED1
POWER SUPPLY<I.B>
LED2
TRANSMISSION<INDOOR-OUTDOOR>
LED3
FAN CONTROL ELEMENT
C
CAPACITOR<FAN MOTOR>
FAN MOTOR
VANE MOTOR
MF
MV
SYMBOL
NAME
TB4
TERMINAL BLOCK<INDOOR/OUTDOOR
CONNECTING LINE>
TERMINAL BLOCK<REMOTE CONTROLLER
TRANSMISSION LINE >
ROOM TEMP.THERMISTOR
<32°F/15k
Ω
, 77°F/5.2k
Ω
DETECT>
PIPE TEMP.THERMISTOR/LIQUID
<32°F/15k
Ω
, 77°F/5.2k
Ω
DETECT>
COND./EVA.TEMP.THERMISTOR
<32°F/15k
Ω
, 77°F/5.2k
Ω
DETECT>
TB5,TB6
TH5
TH1
TH2
W.B
WIRELESS REMOTE CONTROLLER BOARD
RECEIVING UNIT
BUZZER
LED<RUN INDICATOR >
LED<HOT ADJUST>
SWITCH<HEATING ON/OFF>
SWITCH<COOLING ON/OFF>
WIRED REMOTE CONTROLLER BOARD
R.B
RU
BZ
LED1
LED2
SW1
SW2
NAME
SYMBOL
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 (S1, S2, S3).
3. Symbols used in wiring diagram above are, : Connector, : Terminal (block).
4. This diagram shows the wiring of Indoor and Outdoor connecting wires (specification of 230V), adopting superimposed system of
power and signal.
+
1. Use copper supply wires.
[Self-diagnosis]
Please refer to technical manuals etc.
