The Carrier HH22UC063 Override Switch is a critical field-installed component designed specifically for Carrier heat pump systems utilizing outdoor thermostats. This high-reliability low voltage bypass switch allows service technicians or property owners to manually override the set points of an outdoor thermostat (OT), ensuring the system can engage supplemental heat or maintain compressor operation regardless of ambient temperature readings. Built to withstand demanding HVAC environments, the HH22UC063 ensures consistent HVAC control circuit integrity. When diagnosing heat pump lockout issues or testing auxiliary heat banks, this manual override switch provides the necessary mechanical interface to bypass automated sensors, making it an essential part for precise system commissioning and troubleshooting in cold climates.

Key Benefits

• Ensures manual control over auxiliary heat engagement during extreme weather conditions.
• Direct OEM replacement part ensures full compatibility with Carrier and Bryant control wiring.
• Rugged construction prevents contact pitting and electrical failure in high-cycle applications.
• Simplifies heat pump troubleshooting by allowing technicians to isolate thermostat logic from mechanical operation.
• Compact design allows for seamless integration into standard control panel assemblies.

Common Questions

How do I wire the HH22UC063 to an existing outdoor thermostat?
This switch is typically wired in parallel with the outdoor thermostat contacts. When the switch is closed, it completes the circuit to the W switch leg, bypassing the thermostat's temperature-sensing bulb logic.

Can this switch be used with any heat pump brand?
While designed for Carrier/Bryant/Payne specifications, it functions as a standard SPST toggle switch rated for 24VAC systems; however, verified cross-reference for mounting and terminal size is recommended for non-native applications.

What is the purpose of the override in a dual-fuel system?
In dual-fuel applications, this switch allows the technician to force the furnace to take over the heating load for testing purposes, even if the outdoor ambient temperature is above the lockout set point.

Item is Non Cancelable / Non Returnable

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.