Wiring The Vvt Bypass Controller For Power; To Wire The Controller For Power - Carrier VVT Bypass Installation And Startup Manual

Wiring the VVT Bypass Controller for power

The VVT Bypass Controller is powered by a Class 2 power source. Take appropriate isolation measures
when mounting it in a control panel where non-Class 2 circuits are present.
Carrier controllers can share a power supply as long as you:
• Maintain the same polarity
• Use the power supply only for Carrier controllers

To wire the controller for power

Remove power from the power supply.
1
Pull the screw terminal connector from the controller's power terminals labeled Gnd and 24 Vac or Hot.
2
Connect the transformer wires to the screw terminal connector.
3
Apply power to the power supply.
4
Measure the voltage at the VVT Bypass Controller's power input terminals to verify that the voltage is
5
within the operating range of 21.6–26.4 Vac.
Connect a 4-inch (10.2 cm) wire from Gnd to earth ground.
6
Insert the screw terminal connector into the VVT Bypass Controller's power terminals.
7
Verify that the Power LED is on and the Run LED is blinking.
8
VVT Bypass Controller
Installation
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