
Lochinvar & A.O. Smith 100111186 Valve
The Lochinvar 100111186 Natural Gas Valve and Venturi Assembly is a critical OEM component designed for high-efficiency condensing boilers and water heaters. This integrated gas-air ratio control assembly ensures precise fuel delivery and optimal combustion across the burner's modulation range. Engineered for Lochinvar Knight and A.O. Smith commercial units, this assembly features a robust solenoid gas valve mated to a high-precision venturi, maintaining the air-to-gas mixture required for low-NOx operation. When diagnosing ignition failure or combustion instability, replacing the 100111186 assembly ensures the system meets its original thermal efficiency ratings. The unit manages gas manifold pressure and works in tandem with the variable speed blower to adjust firing rates based on load demand. This is an authentic direct replacement part, calibrated for natural gas applications where maintaining strict combustion tolerances is necessary for heat exchanger longevity and operational safety.
Key Benefits for Technicians:
- Precision Metering: Integrated venturi assembly provides accurate gas-air mixing for consistent flame signals.
- Drop-in Compatibility: Exact OEM replacement for Lochinvar and A.O. Smith boilers, reducing time spent on-site during repairs.
- Modulation Accuracy: Designed to handle high turndown ratios without compromising combustion stability.
- Durable Construction: Built to withstand the high-temperature environments of commercial HVACR mechanical rooms.
Common Questions:
- How do I verify if this valve has failed? Check for gas valve relay errors on the control board or use a manometer to verify that the outlet pressure matches the manufacturer’s technical data sheet during the ignition sequence.
- Can this unit be converted to Propane (LP)? This specific assembly is calibrated for Natural Gas. Always consult the specific boiler model manual for the correct LP conversion kit or dedicated assembly.
- Does this include the O-rings and gaskets? Typically, these units require specific venturi gaskets for a gas-tight seal; always inspect existing seals for degradation before completing the installation.
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: $551.11
-65%$551.11
$192.89Lochinvar & A.O. Smith 100111186 Valve
The Lochinvar 100111186 Natural Gas Valve and Venturi Assembly is a critical OEM component designed for high-efficiency condensing boilers and water heaters. This integrated gas-air ratio control assembly ensures precise fuel delivery and optimal combustion across the burner's modulation range. Engineered for Lochinvar Knight and A.O. Smith commercial units, this assembly features a robust solenoid gas valve mated to a high-precision venturi, maintaining the air-to-gas mixture required for low-NOx operation. When diagnosing ignition failure or combustion instability, replacing the 100111186 assembly ensures the system meets its original thermal efficiency ratings. The unit manages gas manifold pressure and works in tandem with the variable speed blower to adjust firing rates based on load demand. This is an authentic direct replacement part, calibrated for natural gas applications where maintaining strict combustion tolerances is necessary for heat exchanger longevity and operational safety.
Key Benefits for Technicians:
- Precision Metering: Integrated venturi assembly provides accurate gas-air mixing for consistent flame signals.
- Drop-in Compatibility: Exact OEM replacement for Lochinvar and A.O. Smith boilers, reducing time spent on-site during repairs.
- Modulation Accuracy: Designed to handle high turndown ratios without compromising combustion stability.
- Durable Construction: Built to withstand the high-temperature environments of commercial HVACR mechanical rooms.
Common Questions:
- How do I verify if this valve has failed? Check for gas valve relay errors on the control board or use a manometer to verify that the outlet pressure matches the manufacturer’s technical data sheet during the ignition sequence.
- Can this unit be converted to Propane (LP)? This specific assembly is calibrated for Natural Gas. Always consult the specific boiler model manual for the correct LP conversion kit or dedicated assembly.
- Does this include the O-rings and gaskets? Typically, these units require specific venturi gaskets for a gas-tight seal; always inspect existing seals for degradation before completing the installation.
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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Shipping & Returns
Description
The Lochinvar 100111186 Natural Gas Valve and Venturi Assembly is a critical OEM component designed for high-efficiency condensing boilers and water heaters. This integrated gas-air ratio control assembly ensures precise fuel delivery and optimal combustion across the burner's modulation range. Engineered for Lochinvar Knight and A.O. Smith commercial units, this assembly features a robust solenoid gas valve mated to a high-precision venturi, maintaining the air-to-gas mixture required for low-NOx operation. When diagnosing ignition failure or combustion instability, replacing the 100111186 assembly ensures the system meets its original thermal efficiency ratings. The unit manages gas manifold pressure and works in tandem with the variable speed blower to adjust firing rates based on load demand. This is an authentic direct replacement part, calibrated for natural gas applications where maintaining strict combustion tolerances is necessary for heat exchanger longevity and operational safety.
Key Benefits for Technicians:
- Precision Metering: Integrated venturi assembly provides accurate gas-air mixing for consistent flame signals.
- Drop-in Compatibility: Exact OEM replacement for Lochinvar and A.O. Smith boilers, reducing time spent on-site during repairs.
- Modulation Accuracy: Designed to handle high turndown ratios without compromising combustion stability.
- Durable Construction: Built to withstand the high-temperature environments of commercial HVACR mechanical rooms.
Common Questions:
- How do I verify if this valve has failed? Check for gas valve relay errors on the control board or use a manometer to verify that the outlet pressure matches the manufacturer’s technical data sheet during the ignition sequence.
- Can this unit be converted to Propane (LP)? This specific assembly is calibrated for Natural Gas. Always consult the specific boiler model manual for the correct LP conversion kit or dedicated assembly.
- Does this include the O-rings and gaskets? Typically, these units require specific venturi gaskets for a gas-tight seal; always inspect existing seals for degradation before completing the installation.
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.












