Cooling Only Unit; Heat Pump Unit - Carrier 38GL018G Installation Manual

38GL...G / 38YY...G / 38YYS...G
Electrical connections for 018 to 024 size

Cooling only unit

L N
L N R C Y
Terminal box legend
Earth
L Live power supply
N Neutral power supply
R Live connection indoor/outdoor unit
C Neutral connection indoor/outdoor unit
Y Compressor interlocking contact
O Reversing valve control (Heat pump only)
W2 Outdoor fan signal (Heat pump only)
S Defrost end signal (Heat pump only)

Heat pump unit

L N
L N R C Y
R C Y
10
10 100
R C Y O W S
2
O W S
2
120
Cooling only system
·
L N R C Y
» ¿
R C Y O W
2
³
Mains supply connecting cable
(field wiring)
Connecting cable Outdoor unit – Indoor unit
(R - C - ) - (field wiring)
Connecting cable Outdoor unit – Indoor unit
(R - C - Y - ) - (field wiring)
Connecting cable Outdoor unit – Indoor unit
(Y - O - W - S) - (field wiring)
2
³ Indoor unit
· Outdoor unit
» Main switch
¿ Time-delay fuse or circuit breaker
(see table IV "Electrical data")
Heat pump system
·
L N R C Y O W
2
» ¿
R C Y O W
2
³
E N G L I S H
S
S
S
GB - 9