Westinghouse WHZ09WMA21S Service Manual page 16

Wall mounted type
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5-1. Models: WHZ09SZA21S and WHZ12SZA21S
OPTIONAL
OUTDOOR
TEMP.
COIL TEMP.
DISCHARGE TEMP.
Fan motor
Pin No. Terminal
code
FG
1
2
Vsp
3
Vcc
4
GND
5
6
Vm
Temperature
Thermistor
( ODU temp. )
Thermistor
( Pipe temp. )
Thermistor
( Discharge temp. )
AC-L
AC-N
CN904
YEL
CN905
BLK
BLK
CN907
CN906
WHT
VALVE
Function of terminal
Revolution pulse output
Speed control voltage input
Control power voltage input
GND
Motor power voltage input
0
32
F
20
68 F
15 k
6.5 k
1.3 V
2.2 V
15 k
6.5 k
1.3 V
2.2 V
187 k
72.1 k
0.18 V
0.43 V
RED
CN801
BRN
CN203
BLU
CN204
Y/G
CN206
ELECTRONIC
EXPANSION
VALVE
CN952
OPTIONAL
OPTIONAL
HEATER
1
2
CN911
BRN(OG)
BRN(OG)
RED
CN201
CN202
CN902
OVERLOAD
PROTECTOR
INDUCTOR
OPTIONAL
Lead wire
color
Compressor
09 model: 2.08
Blue
12 model: 1.82
Yellow
(
20
White
Black
Red
30
86 F
4.5 k
2.7 V
4.5 k
2.7 V
46.5 k
0.64 V
- 15 -
GN
RED
BLK
BRN
BLU
WHT
BLK
WHT
GN
OPTIONAL
OPTIONAL
OPTIONAL
OPTIONAL
PRESSURE
COOL VALVE
PROTECTOR
CN910
CN920
WHT
WHT
W V U
RED CN921
W V U
Y/G
CM
OPTIONAL
COMPRESSOR
)
68 F
AC
POWER
DRED
CN807
RED
OPTIONAL

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