42vmc, Heat pump, Electrical connections – Carrier 42VMC User Manual
Page 12
42VMC
GB - 11
E N G L I S H
Heat pump
Unit
System
Unit
System
ባ
ቢ
10
100
10
120
ቢ
Mains supply connecting cable
(field wiring).
ባ
Connecting cable, indoor-outdoor units
(field wiring).
³
Indoor unit
·
Outdoor unit
»
Main switch
¿
Time-delay fuse or circuit breaker
(see outdoor unit installation manual)
Terminal box legend
Earth.
L
Live power supply.
N
Neutral power supply.
N
Neutral connection indoor/outdoor unit.
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.
Electrical connections
R
S
O
C
Y
W
2
L
Y
O
N
N
W
2
ቢ
ባ
ባ
ባ
42VMC 009, 012, 014
42VMC 018, 024
L
Y
N
³
·
Y
N
230V ~ 50Hz
» ¿
N
O W
2
O W
2
³
·
230V ~ 50Hz
» ¿
R
L
C Y
N
O W
2
R
Y O
C
W
2
S
S
Minimum connection wire size between
indoor and outdoor units (mm
2
)
Model
L
N
N
R
C
Y
O
W2
S
42VMC 009
2.5
2.5
1.5
–
–
1.5
1.5
1.5
–
42VMC 012, 014
2.5
2.5
2.5
–
–
2.5
2.5
2.5
–
42VMC 018, 024
–
–
–
1.5
1.5
1.5
1.5
1.5
1.5