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38GLS...G / 38YL-...G Puron
Electrical connections
Cooling only unit
Terminal box legend, all models
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).
S1 Outdoor coil sensor (Heat pump only).
S2 Outdoor coil sensor (Heat pump only).
Heat pump unit
IMPORTANT: use a separate bipolar wire to connect S1 and S2 terminals.
GB - 8
Cooling only system
Connecting cable, indoor-outdoor units
(field wiring).
Mains supply connecting cable
(field wiring).
³ Indoor unit
· Outdoor unit
» Main switch
¿ Time-delay fuse or circuit breaker
(see table V "Electrical data").
Heat pump system
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