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Lochinvar & A.O. Smith 100171985 Gas Valve Assembly

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Special Price $499.91 Regular Price $554.90
Out of stock
SKU
100171985
Lochinvar & A.O. Smith 100171985 Gas Valve Assembly is a very important element in the process of regulating the flow of gas in water heating systems. This assembly is made for application in the Lochinvar and A.O. Smith water heaters to effectively control the gas supply for the purpose of perfecting the operation of the burner. It includes control mechanisms that offer high energy control and boost the reliability of the system. In this way, it helps to operate equipment safely and have a longer life of HVAC systems by regularly controlling pressure and avoiding leakage.
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HVAC Controls & Electrical, Valves
Manufacturer:
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Specifications

  • Type: Gas Valve Assembly

    Product Overview:
    Provides controlled fuel delivery within hydronic heating equipment. The LOCHINVAR & A.O. SMITH 100171985 Gas Valve Assembly regulates gas admission to the burner system according to the equipment's heating sequence. Its integrated valve and control mechanisms support coordinated fuel delivery, burner ignition, and stable combustion during active heating operation.

    Pressure Regulation:
    Maintains controlled gas pressure as fuel passes through the valve assembly. Pressure regulation helps provide a consistent gas supply to the burner despite changes within the incoming fuel supply. Stable outlet pressure supports predictable fuel delivery during combustion.

    Combustion System Integration:
    Forms part of the heating equipment's fuel-control system between the gas supply and burner assembly. Its operation coordinates fuel admission with the equipment's combustion sequence, supporting the transition from fuel demand to burner operation. This integration allows the gas valve to work as part of the overall heating control system.

    Replacement Guidelines:
    Replacing the Gas Valve Assembly is appropriate if it is damaged, malfunctioning, excessively worn, or otherwise deteriorated. Verify the LOCHINVAR & A.O. SMITH part number 100171985 and the complete heating equipment model number before replacement. Replace the assembly if deterioration affects fuel delivery, valve response, pressure regulation, or normal heating operation.

    Common Signs of Wear:

    • Gas valve operation becomes intermittent.
    • Burner ignition becomes unreliable.
    • Gas flow to the burner becomes inconsistent.
    • Heating cycles fail to operate as expected.
    • Valve response to control signals becomes inconsistent.
    • Burner operation becomes unstable.
    • Gas pressure regulation becomes unreliable.

    Equipment Compatibility:
    The LOCHINVAR & A.O. SMITH 100171985 Gas Valve Assembly is intended for heating equipment that specifies part number 100171985. Verify the complete heating equipment model number and manufacturer's parts documentation before purchasing to help confirm the correct application.

    Technical Specifications:
    Brand: LOCHINVAR & A.O. SMITH
    Part Number: 100171985
    Product Type: Gas Valve Assembly

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    Product Questions (7)
    Customer Questions
    What maintenance is required for the Lochinvar & A.O. Smith 100171985 Gas Valve Assembly?

    Regularly inspect the gas valve assembly for leaks, corrosion, and secure electrical connections. Ensure proper cleaning of the surrounding area and check for debris affecting the operation. Schedule commercial servicing to verify safe gas flow and calibration.

    What are common issues with the Lochinvar & A.O. Smith 100171985 Gas Valve Assembly?

    • Gas leakage from worn seals.
    • Valve sticking or failure to open.
    • Ignition or burner startup failure.
    • Intermittent or restricted gas flow.

    How does the 100171985 Gas Valve Assembly regulate fuel delivery during heating operation?

    It regulates fuel delivery to the burner system and supports controlled heating operation.

    How does the 100171985 Gas Valve Assembly control the gas passage to the burner?

    It controls the gas passage between the fuel supply and burner assembly according to the heating system's operating sequence.

    How does pressure regulation in the 100171985 Gas Valve Assembly support burner operation?

    It helps maintain controlled gas pressure for consistent fuel delivery to the burner.

    What can happen if the 100171985 Gas Valve Assembly does not provide proper fuel admission during ignition?

    Improper fuel admission can interfere with the heating system's ability to establish normal burner operation.

    How should the 100171985 Gas Valve Assembly be maintained?

    The gas valve assembly should be inspected when heating equipment indicates a possible fuel-delivery or ignition-related issue. Specific servicing should follow the applicable manufacturer documentation.

    Installation Steps

    Step 1: Turn off gas supply and electrical power, and check the system is fully shut down and cool.

    Step 2: Remove access panel and label all wiring and gas line connections before disassembly.

    Step 3: Disconnect wiring harness and carefully unthread gas inlet/outlet connections from the old valve.

    Step 4: Install the new gas valve assembly in the same orientation, ensuring correct inlet/outlet alignment.

    Step 5: Reconnect wiring and gas fittings securely, using approved thread sealant where required.

    Step 6: Restore gas and power, then perform leak test and ignition check to confirm safe combustion and stable flame operation.