Carrier TruVu VAVB3-E2 - Wiring Equipment to the TV-VAVB3-E2 S Outputs; Wiring Specifications; Wiring Diagram Legend

Wiring equipment to the TV-VAVB3-E2's outputs
TruVu™ VAVB3-E2 CARRIER CORPORATION ©2022
Installation and Start-up Guide All rights reserved
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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)
– – –
=
=
=
=
=
=
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
Wiring equipment to the TV-VAVB3-E2's outputs