Wiring equipment to the TV-VAVB3-E2's outputs
TruVu™ VAVB3
-E2
CARRIER CORPORATION ©2022
Installation and Start-up Guide
All rights reserved
42
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