York YDCC06-45 Installation Manual page 10

10.3 Power distribution
z Refer to Fig. 11 for power distribution of the system.
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. 11 Indoor and Outdoor Units Power Distribution Diagram
Fig. 12 Connection Line Connection
YORK VRF Air-Conditioner IOM
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