Wiring Equipment To The Tv-Vavb3-E2'S Outputs; Wiring Specifications; Wiring Diagram Legend - Carrier TruVu VAVB3-E2 Installation And Startup Manual

Wiring equipment to the TV-VAVB3-E2's outputs

Wiring equipment to the TV-VAVB3-E2's outputs
Use the following wiring diagrams to wire zone terminal equipment to the TV-VAVB3-E2's outputs.
WARNING Disconnect electrical power to the TV-VAVB3-E2 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

Wiring diagram legend

Gnd
HWV
SAT
SCR
Space temp
sensor
T55 (OPT)
– – –
TruVu™ VAVB3-E2
Installation and Start-up Guide
= Ground
= Hot water valve
= Supply air temperature sensor
= Silicon controlled rectifier
= ZS sensors or Wireless Adapter for
wireless sensors
= Alternate space temperature sensor
Field-supplied wiring
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