Carrier HH680617 Temperature Control

For technicians managing rooftop units or commercial refrigeration cycles, the Carrier HH680617 provides the precise low temperature control required to prevent evaporator freeze-ups and maintain setpoint integrity. This 10-foot long capillary temperature sensor is engineered as a direct replacement for HH22PB030, ensuring zero-clearance compatibility during field retrofits. Operating with an open-on-low temperature switch logic, it triggers circuit interruptions when temperatures drop below the specified threshold, protecting sensitive HVACR components in demanding environments.

The HH680617 temperature control features a broad -20 to 50 degree Fahrenheit range, making it a versatile HVAC replacement part for both low-temp and medium-temp applications. Its durable bulb and capillary design are built to withstand suction line vibrations and moisture—common failure points in older Carrier HH22PB030 installations. By leveraging these OEM HVAC controls, contractors can restore factory-spec temperature monitoring accuracy while reducing the risk of compressor damage or unnecessary defrost cycles.

• Broad Operating Range: Covers -20/50F, ideal for diverse cooling and high-limit applications.
• Extended Reach: Includes a 10-foot capillary for flexible mounting away from the sensing point.
• OEM Fitment: Engineered as a direct replacement for HH22PB030 to minimize installation labor.
• System Protection: Reliable open on low action prevents coil icing and liquid slugging.
• Rugged Construction: Designed for high-vibration commercial HVACR environments.

Is the Carrier HH680617 compatible with my older unit that uses the HH22PB030?
Yes, the HH680617 is the designated factory replacement. It maintains the same electrical ratings and mounting footprint to ensure a seamless swap-out for the obsolete HH22PB030.

What is the primary function of the "Open on Low" logic in this control?
This temperature switch is designed to break the electrical circuit once the sensed temperature falls below the setpoint, typically used as a safety to cut power to the compressor or fan to prevent over-cooling or freezing.

Can I use this for both refrigeration and comfort cooling applications?
As long as your required setpoints fall within the -20 to 50 degree Fahrenheit window, this control is suitable for HVACR temperature management across various system types.

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.