Heil Quaker ICP 1179340 Limit Switch
The Heil Quaker ICP 1179340 Limit Switch is a critical safety component designed for precise thermal monitoring in gas-fired furnaces and packaged HVAC units. This L165-40F limit control operates as a normally closed switch, engineered to open the circuit at 165?F and automatically reset when temperatures drop to 125?F. For contractors performing a furnace limit switch replacement, this OEM-spec part ensures the blower assembly and heat exchanger operate within safe parameters, preventing overheating during high-static conditions or restricted airflow. As a fixed temperature limit switch, the 1179340 provides reliable furnace safety by interrupting the gas valve circuit if the plenum exceeds the 165?F threshold. This Honeywell or Texas Instruments equivalent switch features standard 1/4-inch spade terminals for rapid integration into existing wiring harnesses, maintaining the integrity of the HVAC safety circuit without the need for field modifications.
Key Technical Benefits
- Precision Thermal Calibration: Calibrated for a 165?F cutout and a 40-degree differential, ensuring automatic reset limit switch functionality.
- Direct OEM Compatibility: Engineered specifically for ICP (International Comfort Products), Heil, Quaker, and Tempstar systems to ensure housing fitment.
- Durable Construction: Built to withstand high-frequency cycling and the thermal stresses common in residential furnace applications.
- Safety Compliance: Acts as a primary over-temperature protection device to prevent heat exchanger fatigue and potential fire hazards.
Common Questions
What causes a 165-degree limit switch to trip repeatedly?
Frequent tripping is typically indicative of restricted airflow. Technicians should inspect for a dirty air filter, blocked return ducts, or a failing blower motor before assuming the 1179340 switch is defective.
Can I use a higher temperature limit switch as a substitute?
Substituting a 165-degree switch with a higher rating is unsafe. You must match the L165-40F specifications exactly to protect the furnace from exceeding its engineered thermal limits.
How do I test the ICP 1179340 for continuity?
With the power disconnected and the switch at room temperature, use a multimeter set to ohms. You should see a closed circuit (near zero ohms). If the limit switch is open at room temperature, it has failed and requires immediate replacement.
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.
Original: $40.70
-65%$40.70
$14.24Heil Quaker ICP 1179340 Limit Switch
The Heil Quaker ICP 1179340 Limit Switch is a critical safety component designed for precise thermal monitoring in gas-fired furnaces and packaged HVAC units. This L165-40F limit control operates as a normally closed switch, engineered to open the circuit at 165?F and automatically reset when temperatures drop to 125?F. For contractors performing a furnace limit switch replacement, this OEM-spec part ensures the blower assembly and heat exchanger operate within safe parameters, preventing overheating during high-static conditions or restricted airflow. As a fixed temperature limit switch, the 1179340 provides reliable furnace safety by interrupting the gas valve circuit if the plenum exceeds the 165?F threshold. This Honeywell or Texas Instruments equivalent switch features standard 1/4-inch spade terminals for rapid integration into existing wiring harnesses, maintaining the integrity of the HVAC safety circuit without the need for field modifications.
Key Technical Benefits
- Precision Thermal Calibration: Calibrated for a 165?F cutout and a 40-degree differential, ensuring automatic reset limit switch functionality.
- Direct OEM Compatibility: Engineered specifically for ICP (International Comfort Products), Heil, Quaker, and Tempstar systems to ensure housing fitment.
- Durable Construction: Built to withstand high-frequency cycling and the thermal stresses common in residential furnace applications.
- Safety Compliance: Acts as a primary over-temperature protection device to prevent heat exchanger fatigue and potential fire hazards.
Common Questions
What causes a 165-degree limit switch to trip repeatedly?
Frequent tripping is typically indicative of restricted airflow. Technicians should inspect for a dirty air filter, blocked return ducts, or a failing blower motor before assuming the 1179340 switch is defective.
Can I use a higher temperature limit switch as a substitute?
Substituting a 165-degree switch with a higher rating is unsafe. You must match the L165-40F specifications exactly to protect the furnace from exceeding its engineered thermal limits.
How do I test the ICP 1179340 for continuity?
With the power disconnected and the switch at room temperature, use a multimeter set to ohms. You should see a closed circuit (near zero ohms). If the limit switch is open at room temperature, it has failed and requires immediate replacement.
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
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Description
The Heil Quaker ICP 1179340 Limit Switch is a critical safety component designed for precise thermal monitoring in gas-fired furnaces and packaged HVAC units. This L165-40F limit control operates as a normally closed switch, engineered to open the circuit at 165?F and automatically reset when temperatures drop to 125?F. For contractors performing a furnace limit switch replacement, this OEM-spec part ensures the blower assembly and heat exchanger operate within safe parameters, preventing overheating during high-static conditions or restricted airflow. As a fixed temperature limit switch, the 1179340 provides reliable furnace safety by interrupting the gas valve circuit if the plenum exceeds the 165?F threshold. This Honeywell or Texas Instruments equivalent switch features standard 1/4-inch spade terminals for rapid integration into existing wiring harnesses, maintaining the integrity of the HVAC safety circuit without the need for field modifications.
Key Technical Benefits
- Precision Thermal Calibration: Calibrated for a 165?F cutout and a 40-degree differential, ensuring automatic reset limit switch functionality.
- Direct OEM Compatibility: Engineered specifically for ICP (International Comfort Products), Heil, Quaker, and Tempstar systems to ensure housing fitment.
- Durable Construction: Built to withstand high-frequency cycling and the thermal stresses common in residential furnace applications.
- Safety Compliance: Acts as a primary over-temperature protection device to prevent heat exchanger fatigue and potential fire hazards.
Common Questions
What causes a 165-degree limit switch to trip repeatedly?
Frequent tripping is typically indicative of restricted airflow. Technicians should inspect for a dirty air filter, blocked return ducts, or a failing blower motor before assuming the 1179340 switch is defective.
Can I use a higher temperature limit switch as a substitute?
Substituting a 165-degree switch with a higher rating is unsafe. You must match the L165-40F specifications exactly to protect the furnace from exceeding its engineered thermal limits.
How do I test the ICP 1179340 for continuity?
With the power disconnected and the switch at room temperature, use a multimeter set to ohms. You should see a closed circuit (near zero ohms). If the limit switch is open at room temperature, it has failed and requires immediate replacement.
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.
