
Lochinvar & A.O. Smith 100170490 Gas Valve
The Lochinvar & A.O. Smith 100170490 Gas Valve is a critical OEM replacement part designed for high-efficiency hydronic systems. As an essential component for natural gas combustion control, this valve regulates fuel delivery to the burner assembly with high precision, ensuring the manifold pressure remains within manufacturer-specified tolerances. Built for the rigorous demands of commercial and residential boilers, the 100170490 is engineered to maintain stable firing rates and optimize thermal efficiency across varying load demands. Replacing a failing valve with this genuine Lochinvar gas control unit helps eliminate erratic ignition cycles and inconsistent flame rectification. Technicians should verify model compatibility with specific Knight or A.O. Smith units before installation. This valve features a resilient construction intended for long-term service in demanding mechanical rooms, providing the reliable gas flow regulation necessary for safe and compliant appliance operation.
Key Benefits:- Precise Gas Regulation: Maintains stable manifold pressure for consistent BTU input and system performance.
- Direct OEM Replacement: Ensures exact mechanical fit and electrical compatibility with Lochinvar and A.O. Smith equipment.
- Enhanced Safety: Quick-response solenoid operation provides reliable gas shut-off and burner control.
- Durable Construction: Engineered to withstand the high-temperature environment of modern condensing boilers.
Is this valve compatible with LP (Propane) systems?
The 100170490 is specifically configured for natural gas. For Liquid Propane applications, a specific conversion kit or a different LP-rated valve assembly must be used to ensure safe orifice sizing and pressure regulation.
How do I verify the manifold pressure on this unit?
Technicians should use a digital manometer connected to the pressure tap on the downstream side of the combination gas valve. Adjustments must be made according to the rating plate specifications found on the specific boiler or water heater model.
What are the signs that a gas valve needs replacement?
Common indicators include persistent "No Flame" ignition failures, inconsistent outlet pressure, or visible corrosion on the valve body that could lead to external leaks.
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: $262.20
-65%$262.20
$91.77Lochinvar & A.O. Smith 100170490 Gas Valve
The Lochinvar & A.O. Smith 100170490 Gas Valve is a critical OEM replacement part designed for high-efficiency hydronic systems. As an essential component for natural gas combustion control, this valve regulates fuel delivery to the burner assembly with high precision, ensuring the manifold pressure remains within manufacturer-specified tolerances. Built for the rigorous demands of commercial and residential boilers, the 100170490 is engineered to maintain stable firing rates and optimize thermal efficiency across varying load demands. Replacing a failing valve with this genuine Lochinvar gas control unit helps eliminate erratic ignition cycles and inconsistent flame rectification. Technicians should verify model compatibility with specific Knight or A.O. Smith units before installation. This valve features a resilient construction intended for long-term service in demanding mechanical rooms, providing the reliable gas flow regulation necessary for safe and compliant appliance operation.
Key Benefits:- Precise Gas Regulation: Maintains stable manifold pressure for consistent BTU input and system performance.
- Direct OEM Replacement: Ensures exact mechanical fit and electrical compatibility with Lochinvar and A.O. Smith equipment.
- Enhanced Safety: Quick-response solenoid operation provides reliable gas shut-off and burner control.
- Durable Construction: Engineered to withstand the high-temperature environment of modern condensing boilers.
Is this valve compatible with LP (Propane) systems?
The 100170490 is specifically configured for natural gas. For Liquid Propane applications, a specific conversion kit or a different LP-rated valve assembly must be used to ensure safe orifice sizing and pressure regulation.
How do I verify the manifold pressure on this unit?
Technicians should use a digital manometer connected to the pressure tap on the downstream side of the combination gas valve. Adjustments must be made according to the rating plate specifications found on the specific boiler or water heater model.
What are the signs that a gas valve needs replacement?
Common indicators include persistent "No Flame" ignition failures, inconsistent outlet pressure, or visible corrosion on the valve body that could lead to external leaks.
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.
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Description
The Lochinvar & A.O. Smith 100170490 Gas Valve is a critical OEM replacement part designed for high-efficiency hydronic systems. As an essential component for natural gas combustion control, this valve regulates fuel delivery to the burner assembly with high precision, ensuring the manifold pressure remains within manufacturer-specified tolerances. Built for the rigorous demands of commercial and residential boilers, the 100170490 is engineered to maintain stable firing rates and optimize thermal efficiency across varying load demands. Replacing a failing valve with this genuine Lochinvar gas control unit helps eliminate erratic ignition cycles and inconsistent flame rectification. Technicians should verify model compatibility with specific Knight or A.O. Smith units before installation. This valve features a resilient construction intended for long-term service in demanding mechanical rooms, providing the reliable gas flow regulation necessary for safe and compliant appliance operation.
Key Benefits:- Precise Gas Regulation: Maintains stable manifold pressure for consistent BTU input and system performance.
- Direct OEM Replacement: Ensures exact mechanical fit and electrical compatibility with Lochinvar and A.O. Smith equipment.
- Enhanced Safety: Quick-response solenoid operation provides reliable gas shut-off and burner control.
- Durable Construction: Engineered to withstand the high-temperature environment of modern condensing boilers.
Is this valve compatible with LP (Propane) systems?
The 100170490 is specifically configured for natural gas. For Liquid Propane applications, a specific conversion kit or a different LP-rated valve assembly must be used to ensure safe orifice sizing and pressure regulation.
How do I verify the manifold pressure on this unit?
Technicians should use a digital manometer connected to the pressure tap on the downstream side of the combination gas valve. Adjustments must be made according to the rating plate specifications found on the specific boiler or water heater model.
What are the signs that a gas valve needs replacement?
Common indicators include persistent "No Flame" ignition failures, inconsistent outlet pressure, or visible corrosion on the valve body that could lead to external leaks.
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.












