Chigo CCB-18HVR4 - Outdoor Unit Operation Limits

R3250Hz Universal Outdoor Series Technical Manual
115
GD Chigo Heating & Ventilation Equipment Co., Ltd.
4.2 COU-24HDR4 (Power supply from indoor unit)
P4
P3
BL
FAN
RD
WT
BL
Solenoid valve or heat
(CAP)
(Reserved)
CN21
AC
FAN
N
BR
BL
YE/GN
(Reserved)
(Reserved)
(Reserved)
(Reserved)
(Reserved)
T3
T4
TP
LP
HP
CN24
CN23
LP
HP
BR
BK
YE/GN
BL
INDOOR.COM
S
N1
L1
NL
power supply
YE/GN
P2(GND)
ELECTRICAL WIRING DIAGRAM
temp.
W
V
U
EXV
Inductor
INV
Comp.
Outdoor coil
temp.
Exhaust
temp.
(Reserved)
YE/GN
RD(WT)
YE/GN
(Reserved)
CN10
VAL
BL
DC
CN3(N)
CN28(S_E)
CN4(L)
P1(GND)
CN5
HEATY
CN27
CN19
COMP3(W)
COMP2(V)
COMP1(U)
CN2(PFC1)
CN1(PFC2)
RD(WT)
4-WAY
CN20
Outdoor controller
Outdoor ambient