Laars Heating Systems E2103900 Control
The Laars Heating Systems E2103900 Control is a specialized manual reset aquastat designed for high-limit temperature protection in commercial and residential hydronic systems. Featuring a 40-180F temperature range, this SPST (Single Pole Single Throw) high-limit switch ensures system safety by breaking the electrical circuit when water temperatures exceed the user-defined setpoint. Engineers and technicians rely on this OEM Laars replacement part for its reliability in boiler high-limit protection and pool heater applications, preventing hazardous overheating conditions. The integrated 220-inch capillary tube provides significant installation flexibility, allowing the sensing bulb to be positioned deep within the heat exchanger or storage tank while the control remains accessible. As a manual reset high limit, this component requires a physical intervention after a trip, ensuring the technician can diagnose the root cause of an over-temperature event before restoring service. This heavy-duty aquastat controller is compatible with a wide range of Laars series, including the Laars Mighty Therm and Pennant models, maintaining precise thermal regulation and operational safety across diverse HVACR environments.
Key Benefits:
- Broad Compatibility: Fits an extensive range of Laars equipment, ensuring a direct-fit HVAC replacement part for legacy and modern boilers.
- Extended Reach: The massive 220" capillary length allows for versatile remote mounting in complex mechanical rooms.
- Fail-Safe Operation: The manual reset functionality acts as a critical safety barrier, preventing automatic restarts after a high-limit trip.
- Robust Switching: Heavy-duty SPST switch design provides reliable performance under continuous operational loads.
Common Questions:
- Is the E2103900 a direct replacement for pool heater high limits? Yes, it is commonly used in Laars pool heaters where a 180°F limit and long capillary are required.
- How do I reset this control after it trips? Once the water temperature drops below the setpoint, you must manually press the reset button located on the control housing.
- Can this be used for low-limit control? No, this is specifically designed as a high-limit switch with a manual reset; it is not intended for temperature cycling or low-limit applications.
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: $226.77
-65%$226.77
$79.37Laars Heating Systems E2103900 Control
The Laars Heating Systems E2103900 Control is a specialized manual reset aquastat designed for high-limit temperature protection in commercial and residential hydronic systems. Featuring a 40-180F temperature range, this SPST (Single Pole Single Throw) high-limit switch ensures system safety by breaking the electrical circuit when water temperatures exceed the user-defined setpoint. Engineers and technicians rely on this OEM Laars replacement part for its reliability in boiler high-limit protection and pool heater applications, preventing hazardous overheating conditions. The integrated 220-inch capillary tube provides significant installation flexibility, allowing the sensing bulb to be positioned deep within the heat exchanger or storage tank while the control remains accessible. As a manual reset high limit, this component requires a physical intervention after a trip, ensuring the technician can diagnose the root cause of an over-temperature event before restoring service. This heavy-duty aquastat controller is compatible with a wide range of Laars series, including the Laars Mighty Therm and Pennant models, maintaining precise thermal regulation and operational safety across diverse HVACR environments.
Key Benefits:
- Broad Compatibility: Fits an extensive range of Laars equipment, ensuring a direct-fit HVAC replacement part for legacy and modern boilers.
- Extended Reach: The massive 220" capillary length allows for versatile remote mounting in complex mechanical rooms.
- Fail-Safe Operation: The manual reset functionality acts as a critical safety barrier, preventing automatic restarts after a high-limit trip.
- Robust Switching: Heavy-duty SPST switch design provides reliable performance under continuous operational loads.
Common Questions:
- Is the E2103900 a direct replacement for pool heater high limits? Yes, it is commonly used in Laars pool heaters where a 180°F limit and long capillary are required.
- How do I reset this control after it trips? Once the water temperature drops below the setpoint, you must manually press the reset button located on the control housing.
- Can this be used for low-limit control? No, this is specifically designed as a high-limit switch with a manual reset; it is not intended for temperature cycling or low-limit applications.
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 Laars Heating Systems E2103900 Control is a specialized manual reset aquastat designed for high-limit temperature protection in commercial and residential hydronic systems. Featuring a 40-180F temperature range, this SPST (Single Pole Single Throw) high-limit switch ensures system safety by breaking the electrical circuit when water temperatures exceed the user-defined setpoint. Engineers and technicians rely on this OEM Laars replacement part for its reliability in boiler high-limit protection and pool heater applications, preventing hazardous overheating conditions. The integrated 220-inch capillary tube provides significant installation flexibility, allowing the sensing bulb to be positioned deep within the heat exchanger or storage tank while the control remains accessible. As a manual reset high limit, this component requires a physical intervention after a trip, ensuring the technician can diagnose the root cause of an over-temperature event before restoring service. This heavy-duty aquastat controller is compatible with a wide range of Laars series, including the Laars Mighty Therm and Pennant models, maintaining precise thermal regulation and operational safety across diverse HVACR environments.
Key Benefits:
- Broad Compatibility: Fits an extensive range of Laars equipment, ensuring a direct-fit HVAC replacement part for legacy and modern boilers.
- Extended Reach: The massive 220" capillary length allows for versatile remote mounting in complex mechanical rooms.
- Fail-Safe Operation: The manual reset functionality acts as a critical safety barrier, preventing automatic restarts after a high-limit trip.
- Robust Switching: Heavy-duty SPST switch design provides reliable performance under continuous operational loads.
Common Questions:
- Is the E2103900 a direct replacement for pool heater high limits? Yes, it is commonly used in Laars pool heaters where a 180°F limit and long capillary are required.
- How do I reset this control after it trips? Once the water temperature drops below the setpoint, you must manually press the reset button located on the control housing.
- Can this be used for low-limit control? No, this is specifically designed as a high-limit switch with a manual reset; it is not intended for temperature cycling or low-limit applications.
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.
