Heil Quaker ICP R02R002 Limit Switch

The ICP R02R002 Auto Limit Switch is a precise OEM replacement part engineered for technical reliability in Heil Quaker and International Comfort Products (ICP) heating systems. Designed as a normally closed safety control, this component features a 7-inch insertion length to monitor internal plenum temperatures accurately. It is factory-set with a 140?F open temperature and a 120?F close temperature, ensuring the system shuts down if overheating is detected and automatically resets once the temperature drops to a safe operating level. This furnace limit switch is an essential "high-limit" safety device that protects the heat exchanger and prevents hazardous conditions in residential HVAC systems. Using genuine ICP parts like the R02R002 maintains the original equipment?s design specifications, offering consistent performance and seamless compatibility with brands under the ICP umbrella, including Tempstar, Comfortmaker, and Keeprite. This automatic reset limit switch is built to withstand high-cycle heating environments, ensuring the safety circuit remains integral for long-term field service.

Key Benefits for HVAC Technicians

• OEM Precision: Guaranteed genuine ICP part ensures exact 120-140?F temperature range calibration for safety compliance.
• Direct Compatibility: Designed for an exact fit in Heil Quaker furnaces and other ICP brands, reducing diagnostic and installation time.
• High-Limit Protection: Effectively prevents blower motor or heat exchanger Damage by interrupting the circuit at 140?F.
• Extended Probe Length: The 7-inch insertion probe provides accurate sensing deep within the air stream.
• Automatic Reset: Eliminates the need for manual intervention by restoring the circuit once the system cools to 120?F.

Common Questions about the R02R002

What causes this limit switch to trip frequently?
Frequent tripping usually indicates restricted airflow. Check for dirty air filters, blocked return air grilles, or a failing blower motor, as these cause the heat exchanger to exceed the 140?F safety limit.

Is the R02R002 a manual or automatic reset switch?
This is an automatic reset switch. It will automatically re-close the electrical circuit once the temperature falls back to the 120?F set point.

Can I use a different temperature-rated switch if this one isn't available?
No. To maintain equipment safety and performance standards, you must use a switch with the exact OEM-specified temperature range (120?F?140?F) to prevent heat exchanger fatigue or fire hazards.

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.