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42vmc, Heat pump, Electrical connections – Carrier 42VMC User Manual

Page 12

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42VMC

GB - 11

E N G L I S H

Heat pump

Unit

System

Unit

System

10

100

10

120

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 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

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