5-1. Models: WHZ09SZA21S and WHZ12SZA21S
OPTIONAL
OPTIONAL
AC FAN MOTOR
DC FAN MOTOR
OPTIONAL
Y/G
Y/G
OPTIONAL
OUTDOOR
TEMP.
COIL TEMP.
DISCHARGE TEMP.
VALVE
OPTIONAL
INDUCTOR
OPTIONAL
OVERLOAD
PROTECTOR
COMPRESSOR
OPTIONAL
Y/G
OPTIONAL
HEAT SINK TEMP.
CN903
CN909
CN904
YEL
CN905
BLK
CN907
WHT
BLK
CN906
BRN(OG)
CN201
BRN(OG)
CN202
RED
CN902
BLU
WHT
RED
RED CN921
CN807
RED
CN910
WHT
CN920
WHT
CN911
1
2
W V
U
W V U
AC-L
AC-N
CN801
CN203
CN204
CN206
RED
BRN
BLU
Y/G
CN952
ELECTRONIC
EXPANSION
VALVE
OPTIONAL
OPTIONAL
OPTIONAL
OPTIONAL
OPTIONAL
HEATER
PRESSURE
PROTECTOR
OPTIONAL
COOL VALVE
DRED
TERMINAL PANEL
BRN
BLU
RED
GN
BLK
WHT
GN
BLK
WHT
AC
POWER
CM
CONTROL BOARD
INDOOR UNIT
FM
M
Compressor
(
)
20
68 F
09 model: 2.08
12 model: 1.82
Fan motor
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
4.5 k
1.3 V
2.2 V
2.7 V
20
30
0
68 F
F
86 F
32
Temperature
Thermistor
( Pipe temp. )
15 k
6.5 k
4.5 k
1.3 V
2.2 V
2.7 V
Thermistor
( Discharge temp. )
187 k
72.1 k
46.5 k
0.18 V
0.43 V
0.64 V
-
1
5
-
Summary of Contents for WHZ09SZA21S
Page 11: ...Refrigerant circuit Models WHZ09SZA21S and WHZ12SZA21S 10 ...
Page 41: ......