
5. Wiring diagrams
5-1. Models: WHS09SZA21S, WHS12SZA21S, WHS18SZA21S,
WHS24SZA21S, and WHS30SZA21S
Fan motor (09-24 model)
1
2
3
4
5
Pin No. Terminal
code
C
S
R
Function of terminal
Running coil
COM
Starting coil
Lead wire
color
Red
Black
Blue
Fan motor (30 model)
1
2
3
4
5
6
Pin No. Terminal
code
Vm
GND
Vcc
Vsp
FG
Function of terminal
Revolution pulse output
Speed control voltage input
Control power voltage input
GND
Motor power voltage input
Lead wire
color
Blue
White
Black
Yellow
Red
Thermistor
( ODU temp. )
15 k
6.5 k
4.4 k
1.3 V
2.2 V
20
30
0
68 F
F
86 F
32
Temperature
Thermistor
( Pipe temp. )
15 k
6.5 k
4.4 k
1.3 V
2.2 V
Thermistor
( Discharge temp. )
186 k
71.7 k
46.3 k
0.18 V
0.43 V
Compressor
09 model: 2.35
12 model: 1.7
18 model: 1.87
24 model: 0.75
30 model: 0.932
( )
20
68 F
2.7 V
2.7 V
0.64 V
- 32 -
5-1. Models: WHS09SZA21S, WHS12SZA21S, WHS18SZA21S, WHS24SZA21S, and
WHS30SZA21S
5. Wiring diagrams
O
U
TD
O
O
R
U
N
IT
W
H
S0
9-3
0SZ
A
O
U
TD
O
O
R
U
N
IT
W
H
S0
9-3
0SZ
A