Hitachi RPC-3.0FSN3 - Caution for Electrical Wiring

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7.4.3 Caution for Electrical Wiring
Do not x the power source wire and the control wire to one terminal together.
The pullbox is required when the transition wiring is required.
Indoor Unit
Pullbox
S
E
L
B
Indoor Unit Indoor Unit
Indoor Unit
Indoor UnitIndoor Unit
S
E
L
B
R
L1
S
N
R
L1
S
N
R
L1
S
N
R
L1
S
N
R
L1
S
N
R
L1
S
N