Laars Heating Systems RV2019200 Gas Valve
The Laars Heating Systems RV2019200 is an OEM modulating gas valve specifically engineered for the NeoTherm NTH399 condensing boiler and high-volume water heater. This negative pressure gas valve works in tandem with the combustion blower and venturi to maintain a precise air-to-gas ratio, ensuring high-efficiency performance and stable premix burner operation. It is a critical component for maintaining the boiler's 399 MBH firing rate while minimizing NOx emissions to meet SCAQMD requirements. Built for the rigors of commercial and residential hydronic systems, this Laars replacement part regulates fuel flow accurately even under varying inlet pressures, typically between 4" and 13" w.c.
Key Benefits:- Direct OEM Replacement: Guarantees terminal compatibility and exact fit for NeoTherm 399 models without field modifications.
- Precision Modulation: Facilitates smooth burner turndown and optimal fuel-to-air mixture for condensing efficiency.
- Internal Safety Regulation: Engineered as a negative pressure regulator to shut down fuel flow immediately upon loss of blower signal.
- Durable Construction: Heavy-duty valve body designed to withstand high-cycle thermal demands in modulating systems.
- High Altitude Performance: Supports reliable ignition and stable combustion in systems rated up to 10,000 feet.
- How do I verify the gas pressure on this valve? Technicians should use a manometer at the manifold pressure tap to confirm -0.005" to -0.015" w.c. as per Laars NTH399 service specifications.
- Can this valve be used for Propane (LP) conversions? Yes, but the RV2019200 must be adjusted using the high-fire and low-fire CO2 offset settings detailed in the Laars NeoTherm manual.
- What causes a gas valve ignition failure lock-out? Common issues include improper inlet supply pressure, a failed 24VAC control signal, or a blocked venturi obstructing the negative pressure signal.
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.
Laars Heating Systems RV2019200 Gas Valve
The Laars Heating Systems RV2019200 is an OEM modulating gas valve specifically engineered for the NeoTherm NTH399 condensing boiler and high-volume water heater. This negative pressure gas valve works in tandem with the combustion blower and venturi to maintain a precise air-to-gas ratio, ensuring high-efficiency performance and stable premix burner operation. It is a critical component for maintaining the boiler's 399 MBH firing rate while minimizing NOx emissions to meet SCAQMD requirements. Built for the rigors of commercial and residential hydronic systems, this Laars replacement part regulates fuel flow accurately even under varying inlet pressures, typically between 4" and 13" w.c.
Key Benefits:- Direct OEM Replacement: Guarantees terminal compatibility and exact fit for NeoTherm 399 models without field modifications.
- Precision Modulation: Facilitates smooth burner turndown and optimal fuel-to-air mixture for condensing efficiency.
- Internal Safety Regulation: Engineered as a negative pressure regulator to shut down fuel flow immediately upon loss of blower signal.
- Durable Construction: Heavy-duty valve body designed to withstand high-cycle thermal demands in modulating systems.
- High Altitude Performance: Supports reliable ignition and stable combustion in systems rated up to 10,000 feet.
- How do I verify the gas pressure on this valve? Technicians should use a manometer at the manifold pressure tap to confirm -0.005" to -0.015" w.c. as per Laars NTH399 service specifications.
- Can this valve be used for Propane (LP) conversions? Yes, but the RV2019200 must be adjusted using the high-fire and low-fire CO2 offset settings detailed in the Laars NeoTherm manual.
- What causes a gas valve ignition failure lock-out? Common issues include improper inlet supply pressure, a failed 24VAC control signal, or a blocked venturi obstructing the negative pressure signal.
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 Laars Heating Systems RV2019200 is an OEM modulating gas valve specifically engineered for the NeoTherm NTH399 condensing boiler and high-volume water heater. This negative pressure gas valve works in tandem with the combustion blower and venturi to maintain a precise air-to-gas ratio, ensuring high-efficiency performance and stable premix burner operation. It is a critical component for maintaining the boiler's 399 MBH firing rate while minimizing NOx emissions to meet SCAQMD requirements. Built for the rigors of commercial and residential hydronic systems, this Laars replacement part regulates fuel flow accurately even under varying inlet pressures, typically between 4" and 13" w.c.
Key Benefits:- Direct OEM Replacement: Guarantees terminal compatibility and exact fit for NeoTherm 399 models without field modifications.
- Precision Modulation: Facilitates smooth burner turndown and optimal fuel-to-air mixture for condensing efficiency.
- Internal Safety Regulation: Engineered as a negative pressure regulator to shut down fuel flow immediately upon loss of blower signal.
- Durable Construction: Heavy-duty valve body designed to withstand high-cycle thermal demands in modulating systems.
- High Altitude Performance: Supports reliable ignition and stable combustion in systems rated up to 10,000 feet.
- How do I verify the gas pressure on this valve? Technicians should use a manometer at the manifold pressure tap to confirm -0.005" to -0.015" w.c. as per Laars NTH399 service specifications.
- Can this valve be used for Propane (LP) conversions? Yes, but the RV2019200 must be adjusted using the high-fire and low-fire CO2 offset settings detailed in the Laars NeoTherm manual.
- What causes a gas valve ignition failure lock-out? Common issues include improper inlet supply pressure, a failed 24VAC control signal, or a blocked venturi obstructing the negative pressure signal.
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.
