42 HWS
GB - 10
Electrical connections
Cooling only
Heat pump
IMPORTANT: Use a separate bipolar wire to connect S1 and S2 terminals.
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).
쐃 Indoor unit
쐇 Outdoor unit
쐋 Main switch
쐏 Time-delay fuse or circuit breaker
(see outdoor unit installation manual)
햷 Interconnecting wire, indoor-outdoor units (field wiring).
햸 Mains supply connecting cable.
Only for sizes 07, 09 and 12 mains supply connection
can be made either to the indoor or the outdoor unit.
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