Wiring Equipment To Outputs; Wiring Specifications - Carrier VVT Zone II Installation And Startup Manual

Wiring equipment to outputs

Use the following wiring diagrams to wire zone terminal equipment to the VVT Zone II's outputs.
Single duct (page 26)
Single duct 2-position hot water (page 27)
Single duct modulating hot water (page 28)
Single duct SCR electric heat (page 29)
Single duct combination baseboard and ducted heat (page 30)
Single duct staged electric heat (page 31)
Fan box 2-position hot water (page 32)
Fan box modulating hot water (page 33)
Fan box SCR electric heat (page 34)
Fan box combination base board and ducted heat (page 35)
Fan box 2-stage electric heat (page 36)
Wiring field-supplied actuators to the analog output (page 37)
WARNING Disconnect electrical power to the VVT Zone II before wiring it. Failure to follow this warning could
cause electrical shock, personal injury, or damage to the controller.

Wiring specifications

To size output wiring, consider the following:
• Total loop distance from the power supply to the controller, and then to the controlled device
NOTE Include the total distance of actual wire. For 2-conductor wires, this is twice the cable length.
• Acceptable voltage drop in the wire from the controller to the controlled device
•
Resistance (Ohms) of the chosen wire gauge
•
Maximum current (Amps) the controlled device requires to operate
VVT Zone II Controller
Installation and Start-up Guide
25
Installing the VVT Zone II
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