Heat Pump - Carrier 38YY...G Installation Manual

38YY...G / 38YYS...G
Electrical connections
L N R
L N R C Y
» ¿
L
R-410A
Heat pump unit
C Y O W S
2
O W S
2
Heat pump system
³
R C Y O W S
2
O W S
N R C Y
2
·
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.
W2 Outdoor fan signal.
S Defrost end signal.
10 120
10 100
Mains supply connecting cable
(field wiring).
Connecting cable, indoor-outdoor units
(field wiring).
³ Indoor unit
· Outdoor unit
» Main switch
¿ Time-delay fuse or circuit breaker
(see table VI "Electrical data").
E N G L I S H
GB - 9