YORK VRF Air-Conditioner IOM
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10.3 Power distribution
z
Refer to Fig. 11 for power distribution of the system.
Fig. 11 Indoor and Outdoor Units Power Distribution Diagram
z
An independent refrigeration system is controlled by a single switch and several systems cannot be controlled
with a switch. Especially forbid some indoors unit in a system sharing a control switch with other system,
while the other indoor units are controlled by another switch.
10.4 Indoor unit field wiring
z
For detail indoor unit wiring, see the “Wring Diagram” attached to the control box lid when laying the indoor
unit electrical wiring.
10.5 Setting indoor unit model
z
Refer to the “Wring Diagram” attached to the control box lid for indoor unit model setting.
10.5 Communication network
Note: indoor unit communication lines TB2, TB3 (TB2 in, TB3out) cannot be conversely connected, otherwise it will
have communication failure and the unit cannot startup.
Fig. 12 Connection Line Connection
