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[ III Heat source Unit Components ]
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HWE09080 GB
4. Relay board
CNOUT2
12 VDC input
Relay driving signal input (X21)
Relay driving signal input (X22)
Relay driving signal input (X23)
Relay driving signal input (X24)
Relay driving signal input (X25)
CNAC4
L1 input
L2
CN83
Pump interlock signal output
Pump interlock signal output
Pump interlock signal input
Pump interlock signal input
CNPW
Pump interlock signal output
Pump interlock signal output