Heil Quaker ICP 709557 Limit Switch
The Heil Quaker ICP 709557 Limit Switch is a critical safety component designed for high-limit temperature regulation in ICP furnaces. Engineered to handle a fixed temperature range of 160-200F, this auto-reset limit switch acts as a primary defense against heat exchanger damage. When the internal plenum temperature exceeds the safety threshold, the 709557 switch breaks the electrical circuit to the gas valve or heating elements, preventing hazardous overheating. This genuine OEM replacement part is compatible with International Comfort Products brands including Heil, Tempstar, Arcoaire, and Comfortmaker.
For technicians servicing NAXB003AH01 or NAXB001AH01 units, verifying the L160-40 specification is essential for maintaining system integrity. This 1/2-inch NPT or flange-mounted control ensures the blower motor engages and disengages at precise intervals, protecting the heat exchanger from thermal stress during heavy heating cycles.
Key Benefits:
- OEM Precision: Specifically calibrated for ICP heating systems to maintain factory airflow safety standards.
- Automatic Reset: Eliminates manual intervention by resetting the circuit once temperatures drop below the 40-degree differential.
- High-Temperature Durability: Constructed with robust materials to withstand the rigorous environment of furnace supply plenums.
- System Protection: Effectively prevents short cycling and protects expensive heat exchangers from cracking due to excessive heat.
Common Questions:
What causes an ICP 709557 limit switch to trip frequently?
Frequent tripping is usually a symptom of restricted airflow. Check for a dirty air filter, blocked return vents, or a failing blower motor that cannot move secondary air across the heat exchanger efficiently.
Can I bypass this limit switch for troubleshooting?
Bypassing a safety limit on an HVAC system is dangerous and only recommended for brief diagnostic testing by a qualified contractor. Never leave a unit running with a bypassed limit switch.
How do I check if my 709557 switch is bad?
Use a multimeter to check for continuity. In a cold state (room temperature), the ICP limit switch should be normally closed, showing a reading of 0 ohms.
This item is not eligible for free shipping.
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: $35.94
-65%$35.94
$12.58Heil Quaker ICP 709557 Limit Switch
The Heil Quaker ICP 709557 Limit Switch is a critical safety component designed for high-limit temperature regulation in ICP furnaces. Engineered to handle a fixed temperature range of 160-200F, this auto-reset limit switch acts as a primary defense against heat exchanger damage. When the internal plenum temperature exceeds the safety threshold, the 709557 switch breaks the electrical circuit to the gas valve or heating elements, preventing hazardous overheating. This genuine OEM replacement part is compatible with International Comfort Products brands including Heil, Tempstar, Arcoaire, and Comfortmaker.
For technicians servicing NAXB003AH01 or NAXB001AH01 units, verifying the L160-40 specification is essential for maintaining system integrity. This 1/2-inch NPT or flange-mounted control ensures the blower motor engages and disengages at precise intervals, protecting the heat exchanger from thermal stress during heavy heating cycles.
Key Benefits:
- OEM Precision: Specifically calibrated for ICP heating systems to maintain factory airflow safety standards.
- Automatic Reset: Eliminates manual intervention by resetting the circuit once temperatures drop below the 40-degree differential.
- High-Temperature Durability: Constructed with robust materials to withstand the rigorous environment of furnace supply plenums.
- System Protection: Effectively prevents short cycling and protects expensive heat exchangers from cracking due to excessive heat.
Common Questions:
What causes an ICP 709557 limit switch to trip frequently?
Frequent tripping is usually a symptom of restricted airflow. Check for a dirty air filter, blocked return vents, or a failing blower motor that cannot move secondary air across the heat exchanger efficiently.
Can I bypass this limit switch for troubleshooting?
Bypassing a safety limit on an HVAC system is dangerous and only recommended for brief diagnostic testing by a qualified contractor. Never leave a unit running with a bypassed limit switch.
How do I check if my 709557 switch is bad?
Use a multimeter to check for continuity. In a cold state (room temperature), the ICP limit switch should be normally closed, showing a reading of 0 ohms.
This item is not eligible for free shipping.
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 709557 Limit Switch is a critical safety component designed for high-limit temperature regulation in ICP furnaces. Engineered to handle a fixed temperature range of 160-200F, this auto-reset limit switch acts as a primary defense against heat exchanger damage. When the internal plenum temperature exceeds the safety threshold, the 709557 switch breaks the electrical circuit to the gas valve or heating elements, preventing hazardous overheating. This genuine OEM replacement part is compatible with International Comfort Products brands including Heil, Tempstar, Arcoaire, and Comfortmaker.
For technicians servicing NAXB003AH01 or NAXB001AH01 units, verifying the L160-40 specification is essential for maintaining system integrity. This 1/2-inch NPT or flange-mounted control ensures the blower motor engages and disengages at precise intervals, protecting the heat exchanger from thermal stress during heavy heating cycles.
Key Benefits:
- OEM Precision: Specifically calibrated for ICP heating systems to maintain factory airflow safety standards.
- Automatic Reset: Eliminates manual intervention by resetting the circuit once temperatures drop below the 40-degree differential.
- High-Temperature Durability: Constructed with robust materials to withstand the rigorous environment of furnace supply plenums.
- System Protection: Effectively prevents short cycling and protects expensive heat exchangers from cracking due to excessive heat.
Common Questions:
What causes an ICP 709557 limit switch to trip frequently?
Frequent tripping is usually a symptom of restricted airflow. Check for a dirty air filter, blocked return vents, or a failing blower motor that cannot move secondary air across the heat exchanger efficiently.
Can I bypass this limit switch for troubleshooting?
Bypassing a safety limit on an HVAC system is dangerous and only recommended for brief diagnostic testing by a qualified contractor. Never leave a unit running with a bypassed limit switch.
How do I check if my 709557 switch is bad?
Use a multimeter to check for continuity. In a cold state (room temperature), the ICP limit switch should be normally closed, showing a reading of 0 ohms.
This item is not eligible for free shipping.
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.
