York IDH072B21S Series Installation And Maintenance Manual page 31

Caution for Electrical Wiring
● Do not connect the power supply wiring and the communication cable into one terminal.
● The manual switchbox is required when communication cable is required.
P01432Q-rev.1
Indoor Unit
R S
L1
G
F
S
C
I
Indoor Unit
R S
L1
G
F
S
C
I
Indoor Unit
Mp R S Mp
L2 N L1 L2 N
Indoor Unit
Mp R S Mp
L2 N L1 L2 N
Switchbox
Indoor Unit
R S Mp
L1 L2 N
Indoor Unit
R S Mp
L1 L2 N
27