10
WIRING DIAGRAM7
PKA-A24KA4.TH PKA-A30KA4.TH PKA-A36KA4.TH
Symbol Name Symbol Name
I.B Indoor controller board
FUSE FUSE (T3.15AL250V)
CN2L Connector (LOSSNAY)
CN30 Connector (LLC)
CN105 Connector (Radio frequency interface)
CN152 Connector (Back-up heating)
CN90 Connector (Remote operation adapter)
Connector (Emergency operation)
CN32 Connector ( Remote switch)
CN41 Connector (HA terminal-A)
CN51 Connector (Centrally control)
LED1 Power supply (I.B)
LED2 Power supply (R.B)
LED3 Transmission (Indoor-outdoor)
SW1 Switch (Model selection) +See table 1
SW2
SWE
Switch (Capacity code) +See table 2

[Explanation of symbols]

MS Fan motor
W.B Pcb for IR wireless remote controller
Switch board
SWE2 Emergency operation
M Vane motor
LED1 LED (Operation indication : Green)
REC1 Receiving unit
LED2 LED (Preparation for heating: Orange)
TB2 Terminal block(Indoor unit Power (option))
TB4 Terminal block (Indoor/outdoor connecting line)
TB5 Terminal block (Remote controller transmission line)
RFI Radio frequency interface for RF thermostat
TH1 Room temp. Thermistor
Pipe temp. Thermistor/liquid
Cond./eva. temp. Thermistor
(32°F/15kΩ, 77°F/5.4kΩ Detect)
(32°F/15kΩ, 77°F/5.4kΩ Detect)
(32°F/15kΩ, 77°F/5.4kΩ Detect)
TH2
TH5
S.W
Notes:
1. SymboIs used in wiring diagram above are, : Connector, : Terminal (block).
2. Indoor and outdoor connecting wires have poIarities, make sure to match terminal
numbers (S1, S2, S3) for correct wirings.
3. Since the outdoor side electric wiring may change, be sure to check the outdoor unit
electric wiring diagram for servicing.
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.
R.B Wired remote controller board
TB6 Terminal block (Remote controller transmission line)
Refer to tables1and 2
CN90
(WHT)
CN2L
(RED)
CN151
(WHT)
CN20
(RED)
CN44
(WHT)
CN4F
(WHT)
CN22
(BLU)
CN301
(GRN)
CN41
(WHT)
CN51
(WHT)
CN32
(WHT)
CNMF
(WHT)
S.W
W.B
SWE
R.B
CNP (BLU)
CN3C
(BLU)
CNRU
(WHT)
LDSWE (A)
(BLU)
LDSWE(B)
REC1
LED1
LED2
SWE2
CN01
(BLK)
DB1
X1
FUSE
I.B
1
1
11 1 5 1
6
1
6
4
11
1
2
141425
TH1 TH2 TH5
2
1139
CN152
(WHT)
CN30
(BLK)
11310
3
3
3
2
2
1
2
1
1
1
5
6
Mt° t° t°
MS3~
TB4
TB5
S1
S2
S3
RU
ORN
ORN ORN
BRN
LED1
LED3
LED2
TB6
ONOFFTOOUTDOORUNIT
YLW YLW
BLK
<Table 1>SW1(MODEL SELECTION)SETTING SETTING
ON
OFF
12345
<Table 2> SW2 (CAPACITY CODE)
MODELS
PKA-A24KA4
ON
OFF
12345
SETTING
MODELS
ON
OFF
12345
PKA-A30KA4SETTING
MODELS
ON
OFF
12345
PKA-A36KA4OPTION PARTThe black square (
■)
indicates a switch position.
CN105
(
RED
)
RFI
5
2
<+1>