Carrier TruVu VAVB3-E2 - Wiring Specifications

Wiring inputs and outputs
TruVu™ VAVB3-E2 CARRIER CORPORATION ©2022
Installation and Start-up Guide All rights reserved
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Wiring specifications
Input wiring
Input
Maximum length
Minimum gauge
Shielding
Thermistor
Dry contact
1000 feet
(305 meters)
22 AWG
Shielded
0–5 Vdc
0–10 Vdc
1000 feet
(305 meters)
26 AWG
Shielded
Pulse counter
TLO
1000 feet
(305 meters)
22 AWG
Shielded
Output wiring
To size output wiring, consider the following:
• Total loop distance from the controller 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