22
1005759 ISS 1
OWNER/INSTALLATION MANUAL
Please refer to the wiring diagram on the electric box.
MODELS: VPT 22ALX
VS
P1
5V
DC
31
0
FG
DC
-
12V GND A B
VCC GND HP LP PWM GND FG
12V GND A B
A B
CN-BL
T8
T7
T6
T5
T4
T3
T2
T1
T9
T10
T11
IN1
IN1
IN1
IN1
IN1
WIRE
CONTROLLER
Heat coil temp.
Cool coil temp.
OUT 1
OUT 2
OUT 3
OUT 4
OUT 5
OUT 6
OUT 7
U V W
4 WAY VALVE
EEV
1
MF
EGND
N1
AC-N1
Outlet water
temp.
Ambient temp.
Return temp.
Inlet water temp.
Exhaust temp.
RED
SW1
CN4
SW-1 OFF ON
FAN AC DC
L
N
P1 P2
Power
AC 220-240V
50Hz
To pump
High pr
essur
e switch
Low pr
essur
e switch
W
ater flow switch
E-V
AL1
Reactance
E-V
AL2
CN-RA
T2
CN-RA
T1
RY2
Y/G
