30
Figure 27. Typical Communication Wiring
(PQ)
Refrigerant Piping
Coil
AHU
Control Kit
P Q
All Drain Wires will connect from outdoor unit chassis to indoor unit chassis at the end of the signal
run.
18 GA., stranded, 2-conductor, shielded control wire (polarity sensitive).
Typical Wiring Diagram, NEC/CEC and Local Codes apply.
Install a terminating resistor (Ω120) on terminals P&Q on the indoor unit
which is furthest from the outdoor unit.
VRF
Indoor Unit
Outdoor
Unit
VRF
Indoor Unit
VRF
Indoor Unit
Refrigerant Piping
(PQ)
Coil
AHU
Control Kit
Indoor UnitIndoor UnitIndoor Unit
P Q
All Drain Wires will connect from outdoor unit chassis to indoor unit chassis at the end of the signal
run.
18 GA., stranded, 2-conductor, shielded control wire (polarity sensitive).
Typical Wiring Diagram, NEC/CEC and Local Codes apply.
Install a terminating resistor (Ω120) on terminals P&Q on the indoor unit
which is furthest from the outdoor unit.
Header Pipe Kit
V8HDRK04
Outdoor
Unit
Figure 28. Typical Communication Wiring
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