
Heil Quaker ICP R02R004 Limit Control
The Heil Quaker ICP R02R004 Limit Control is a critical safety component designed for precise thermal regulation within residential gas furnaces and package units. This high-temperature limit switch features a 150-degree cutout (150-40F) and an L150-40 classification, ensuring the system shuts down the burner if the heat exchanger exceeds safe operating parameters. As an authentic OEM replacement part for International Comfort Products (ICP), this control is compatible with systems under the Heil, Quaker, Tempstar, and Comfortmaker brands. The sensor utilizes a bi-metal thermal disc for reliable mechanical actuation and is rated for standard 24V or 120V control circuits. For technicians performing furnace troubleshooting, this limit control offers a simplified installation with standard 1/4-inch terminals, restoring factory-spec safety to the air handler or furnace. Maintaining a functional ICP furnace limit switch is essential for preventing heat exchanger fatigue and ensuring consistent blower motor cycling during high-demand heating cycles.
Key Benefits
- OEM Compatibility: Engineered as a direct drop-in replacement for Heil Quaker R02R004, ensuring correct fitment and electrical calibration.
- Safety Compliance: Prevents dangerous overheating by opening the circuit at 150?F and automatically resetting once the temperature drops 40?F.
- Durable Construction: Features high-grade electrical contacts and a robust housing designed to withstand constant thermal cycling in the plenum.
- Simplified Service: Standardized mounting bracket and terminal layout reduce labor time during HVAC part replacement.
Common Questions
What causes an R02R004 limit switch to trip frequently?
Frequent tripping usually indicates restricted airflow, often caused by a dirty air filter, blocked return ducts, or a failing blower motor, causing the heat exchanger to reach the 150?F threshold.
Is this a manual or automatic reset limit control?
The R02R004 is an automatic reset control, meaning it will close the circuit and resume operation once the internal components cool down by approximately 40 degrees.
Can I use this limit switch in other ICP brands?
Yes, as an ICP-authorized part, it is compatible across the full family of brands including Tempstar, Arcoaire, and Comfortmaker, provided the technical specifications match the original part number.
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.
Heil Quaker ICP R02R004 Limit Control
The Heil Quaker ICP R02R004 Limit Control is a critical safety component designed for precise thermal regulation within residential gas furnaces and package units. This high-temperature limit switch features a 150-degree cutout (150-40F) and an L150-40 classification, ensuring the system shuts down the burner if the heat exchanger exceeds safe operating parameters. As an authentic OEM replacement part for International Comfort Products (ICP), this control is compatible with systems under the Heil, Quaker, Tempstar, and Comfortmaker brands. The sensor utilizes a bi-metal thermal disc for reliable mechanical actuation and is rated for standard 24V or 120V control circuits. For technicians performing furnace troubleshooting, this limit control offers a simplified installation with standard 1/4-inch terminals, restoring factory-spec safety to the air handler or furnace. Maintaining a functional ICP furnace limit switch is essential for preventing heat exchanger fatigue and ensuring consistent blower motor cycling during high-demand heating cycles.
Key Benefits
- OEM Compatibility: Engineered as a direct drop-in replacement for Heil Quaker R02R004, ensuring correct fitment and electrical calibration.
- Safety Compliance: Prevents dangerous overheating by opening the circuit at 150?F and automatically resetting once the temperature drops 40?F.
- Durable Construction: Features high-grade electrical contacts and a robust housing designed to withstand constant thermal cycling in the plenum.
- Simplified Service: Standardized mounting bracket and terminal layout reduce labor time during HVAC part replacement.
Common Questions
What causes an R02R004 limit switch to trip frequently?
Frequent tripping usually indicates restricted airflow, often caused by a dirty air filter, blocked return ducts, or a failing blower motor, causing the heat exchanger to reach the 150?F threshold.
Is this a manual or automatic reset limit control?
The R02R004 is an automatic reset control, meaning it will close the circuit and resume operation once the internal components cool down by approximately 40 degrees.
Can I use this limit switch in other ICP brands?
Yes, as an ICP-authorized part, it is compatible across the full family of brands including Tempstar, Arcoaire, and Comfortmaker, provided the technical specifications match the original part number.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Heil Quaker ICP R02R004 Limit Control is a critical safety component designed for precise thermal regulation within residential gas furnaces and package units. This high-temperature limit switch features a 150-degree cutout (150-40F) and an L150-40 classification, ensuring the system shuts down the burner if the heat exchanger exceeds safe operating parameters. As an authentic OEM replacement part for International Comfort Products (ICP), this control is compatible with systems under the Heil, Quaker, Tempstar, and Comfortmaker brands. The sensor utilizes a bi-metal thermal disc for reliable mechanical actuation and is rated for standard 24V or 120V control circuits. For technicians performing furnace troubleshooting, this limit control offers a simplified installation with standard 1/4-inch terminals, restoring factory-spec safety to the air handler or furnace. Maintaining a functional ICP furnace limit switch is essential for preventing heat exchanger fatigue and ensuring consistent blower motor cycling during high-demand heating cycles.
Key Benefits
- OEM Compatibility: Engineered as a direct drop-in replacement for Heil Quaker R02R004, ensuring correct fitment and electrical calibration.
- Safety Compliance: Prevents dangerous overheating by opening the circuit at 150?F and automatically resetting once the temperature drops 40?F.
- Durable Construction: Features high-grade electrical contacts and a robust housing designed to withstand constant thermal cycling in the plenum.
- Simplified Service: Standardized mounting bracket and terminal layout reduce labor time during HVAC part replacement.
Common Questions
What causes an R02R004 limit switch to trip frequently?
Frequent tripping usually indicates restricted airflow, often caused by a dirty air filter, blocked return ducts, or a failing blower motor, causing the heat exchanger to reach the 150?F threshold.
Is this a manual or automatic reset limit control?
The R02R004 is an automatic reset control, meaning it will close the circuit and resume operation once the internal components cool down by approximately 40 degrees.
Can I use this limit switch in other ICP brands?
Yes, as an ICP-authorized part, it is compatible across the full family of brands including Tempstar, Arcoaire, and Comfortmaker, provided the technical specifications match the original part number.
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.












