
Lochinvar & A.O. Smith 100112336 Gas Valve
The Lochinvar & A.O. Smith 100112336 Gas Valve is a critical OEM replacement water heater control designed for precise manifold pressure regulation in natural gas systems. Engineered to sustain a consistent 5" WC (Water Column) output, this combination gas control thermostat ensures optimal combustion efficiency and thermal stability for residential gas water heaters. As a veteran-grade component, it features high-precision internal sensing and is the direct updated version for 9007884005. It is also technically identical to the Honeywell WV8840B1042, sharing the same 1/2" NPT inlet and inverted flare outlet configuration frequently encountered by contractors in the field.
This standing pilot gas valve utilizes an integrated NTC thermistor for accurate water temperature monitoring up to 221°F and is powered by a standard 750-millivolt thermopile. The 100112336 gas control is widely used across Lochinvar LT-series, A.O. Smith GCV-series, and Reliance 300-series units, making it a versatile HVACR replacement part for professional service calls. Its thermal well-immersion design provides a rapid response to temperature fluctuations, preventing excessive cycling and maintaining the long-term integrity of the burner assembly.
Key Benefits:
- Factory Calibrated Precision: Pre-set to 5" WC Natural Gas pressure to ensure immediate manifold pressure stability without the need for field adjustment in standard applications.
- Direct Drop-in Compatibility: Seamlessly replaces 9007884005, WV8840B1042, and 321166-000, reducing downtime during emergency repairs.
- Diagnostic LED Interface: Includes a technician-friendly status indicator that provides blink-code feedback for rapid troubleshooting of pilot and sensor circuits.
- Robust Safety Integration: Features an ECO (Energy Cut-Off) high-limit switch that automatically shuts down gas flow if water temperatures exceed safe operating parameters.
Common Questions:
Is the 100112336 compatible with LP (Propane) systems?
No, this specific model is calibrated exclusively for Natural Gas at 5" WC. Using this valve in a Liquid Propane application creates a severe safety hazard and will result in improper combustion.
Does this valve require an external power source?
Negative. This is a millivolt-powered system; the 100112336 generates its own operating voltage via the thermopile once the pilot light is established.
Will this fit my A.O. Smith or Reliance water heater if the old part number is 9007884005?
Yes, the 100112336 is the official engineering update for part 9007884005 and is designed for 100% functional and physical compatibility.
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: $259.69
-65%$259.69
$90.89Lochinvar & A.O. Smith 100112336 Gas Valve
The Lochinvar & A.O. Smith 100112336 Gas Valve is a critical OEM replacement water heater control designed for precise manifold pressure regulation in natural gas systems. Engineered to sustain a consistent 5" WC (Water Column) output, this combination gas control thermostat ensures optimal combustion efficiency and thermal stability for residential gas water heaters. As a veteran-grade component, it features high-precision internal sensing and is the direct updated version for 9007884005. It is also technically identical to the Honeywell WV8840B1042, sharing the same 1/2" NPT inlet and inverted flare outlet configuration frequently encountered by contractors in the field.
This standing pilot gas valve utilizes an integrated NTC thermistor for accurate water temperature monitoring up to 221°F and is powered by a standard 750-millivolt thermopile. The 100112336 gas control is widely used across Lochinvar LT-series, A.O. Smith GCV-series, and Reliance 300-series units, making it a versatile HVACR replacement part for professional service calls. Its thermal well-immersion design provides a rapid response to temperature fluctuations, preventing excessive cycling and maintaining the long-term integrity of the burner assembly.
Key Benefits:
- Factory Calibrated Precision: Pre-set to 5" WC Natural Gas pressure to ensure immediate manifold pressure stability without the need for field adjustment in standard applications.
- Direct Drop-in Compatibility: Seamlessly replaces 9007884005, WV8840B1042, and 321166-000, reducing downtime during emergency repairs.
- Diagnostic LED Interface: Includes a technician-friendly status indicator that provides blink-code feedback for rapid troubleshooting of pilot and sensor circuits.
- Robust Safety Integration: Features an ECO (Energy Cut-Off) high-limit switch that automatically shuts down gas flow if water temperatures exceed safe operating parameters.
Common Questions:
Is the 100112336 compatible with LP (Propane) systems?
No, this specific model is calibrated exclusively for Natural Gas at 5" WC. Using this valve in a Liquid Propane application creates a severe safety hazard and will result in improper combustion.
Does this valve require an external power source?
Negative. This is a millivolt-powered system; the 100112336 generates its own operating voltage via the thermopile once the pilot light is established.
Will this fit my A.O. Smith or Reliance water heater if the old part number is 9007884005?
Yes, the 100112336 is the official engineering update for part 9007884005 and is designed for 100% functional and physical compatibility.
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 100112336 Gas Valve is a critical OEM replacement water heater control designed for precise manifold pressure regulation in natural gas systems. Engineered to sustain a consistent 5" WC (Water Column) output, this combination gas control thermostat ensures optimal combustion efficiency and thermal stability for residential gas water heaters. As a veteran-grade component, it features high-precision internal sensing and is the direct updated version for 9007884005. It is also technically identical to the Honeywell WV8840B1042, sharing the same 1/2" NPT inlet and inverted flare outlet configuration frequently encountered by contractors in the field.
This standing pilot gas valve utilizes an integrated NTC thermistor for accurate water temperature monitoring up to 221°F and is powered by a standard 750-millivolt thermopile. The 100112336 gas control is widely used across Lochinvar LT-series, A.O. Smith GCV-series, and Reliance 300-series units, making it a versatile HVACR replacement part for professional service calls. Its thermal well-immersion design provides a rapid response to temperature fluctuations, preventing excessive cycling and maintaining the long-term integrity of the burner assembly.
Key Benefits:
- Factory Calibrated Precision: Pre-set to 5" WC Natural Gas pressure to ensure immediate manifold pressure stability without the need for field adjustment in standard applications.
- Direct Drop-in Compatibility: Seamlessly replaces 9007884005, WV8840B1042, and 321166-000, reducing downtime during emergency repairs.
- Diagnostic LED Interface: Includes a technician-friendly status indicator that provides blink-code feedback for rapid troubleshooting of pilot and sensor circuits.
- Robust Safety Integration: Features an ECO (Energy Cut-Off) high-limit switch that automatically shuts down gas flow if water temperatures exceed safe operating parameters.
Common Questions:
Is the 100112336 compatible with LP (Propane) systems?
No, this specific model is calibrated exclusively for Natural Gas at 5" WC. Using this valve in a Liquid Propane application creates a severe safety hazard and will result in improper combustion.
Does this valve require an external power source?
Negative. This is a millivolt-powered system; the 100112336 generates its own operating voltage via the thermopile once the pilot light is established.
Will this fit my A.O. Smith or Reliance water heater if the old part number is 9007884005?
Yes, the 100112336 is the official engineering update for part 9007884005 and is designed for 100% functional and physical compatibility.
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.












