Lochinvar & A.O. Smith 100208389 Pressure Switch
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Lochinvar & A.O. Smith 100208389 Pressure Switch

Lochinvar & A.O. Smith 100208389 Pressure Switch

The Lochinvar & A.O. Smith 100208389 is a critical safety component designed specifically for monitoring natural gas pressure in high-performance heating systems. As a genuine OEM replacement pressure switch calibrated at 4.1" WC, it serves as the primary safeguard to prevent ignition or sustained operation during low-pressure scenarios. This part is a direct replacement for the obsolete PRS2004 and PRS2004K, ensuring seamless integration into existing assemblies without field modifications. It is engineered for the Lochinvar EnergyRite (ER) series, specifically models 252-402, and is frequently utilized across CBL, CBN, and CHN series boilers. For HVACR contractors, this low gas pressure switch offers the precise electrical feedback necessary to maintain BTU output and prevent burner instability. Its compact housing is built to withstand the thermal stress of commercial mechanical rooms, providing a reliable SPST or SPDT response when line pressure drops below safety thresholds.

Key Benefits:

  • OEM Compatibility: Exact replacement for PRS2004, 100208389, and 100208389K, ensuring verified factory specs.
  • Critical Calibration: Factory-set at 4.1" WC for precise detection of low natural gas supply pressure.
  • Broad Application: Designed for EnergyRite 252-402 and compatible with several Lochinvar CBL/CBN/CHN series boilers.
  • Enhanced Safety: Prevents hazardous combustion conditions caused by insufficient natural gas flow.
  • Durable Construction: Lightweight yet ruggedized for long-term cycling in commercial heating environments.

Common Questions:

  • What are the symptoms of a failing 100208389 switch? Common signs include intermittent lockout codes (often related to 'Low Gas Pressure') or the burner failing to cycle even when gas is present at the manifold.
  • Is this switch compatible with Propane (LP) systems? No, the 100208389 is specifically calibrated for Natural Gas. Using this on LP systems may result in incorrect setpoints and safety failures.
  • Can I use this on any Lochinvar boiler? While versatile, it is specifically intended for the EnergyRite and CBL/CBN/CHN series. Always check your specific model's manual to confirm the internal part number.

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.

$21.25

Original: $60.72

-65%
Lochinvar & A.O. Smith 100208389 Pressure Switch

$60.72

$21.25

Lochinvar & A.O. Smith 100208389 Pressure Switch

The Lochinvar & A.O. Smith 100208389 is a critical safety component designed specifically for monitoring natural gas pressure in high-performance heating systems. As a genuine OEM replacement pressure switch calibrated at 4.1" WC, it serves as the primary safeguard to prevent ignition or sustained operation during low-pressure scenarios. This part is a direct replacement for the obsolete PRS2004 and PRS2004K, ensuring seamless integration into existing assemblies without field modifications. It is engineered for the Lochinvar EnergyRite (ER) series, specifically models 252-402, and is frequently utilized across CBL, CBN, and CHN series boilers. For HVACR contractors, this low gas pressure switch offers the precise electrical feedback necessary to maintain BTU output and prevent burner instability. Its compact housing is built to withstand the thermal stress of commercial mechanical rooms, providing a reliable SPST or SPDT response when line pressure drops below safety thresholds.

Key Benefits:

  • OEM Compatibility: Exact replacement for PRS2004, 100208389, and 100208389K, ensuring verified factory specs.
  • Critical Calibration: Factory-set at 4.1" WC for precise detection of low natural gas supply pressure.
  • Broad Application: Designed for EnergyRite 252-402 and compatible with several Lochinvar CBL/CBN/CHN series boilers.
  • Enhanced Safety: Prevents hazardous combustion conditions caused by insufficient natural gas flow.
  • Durable Construction: Lightweight yet ruggedized for long-term cycling in commercial heating environments.

Common Questions:

  • What are the symptoms of a failing 100208389 switch? Common signs include intermittent lockout codes (often related to 'Low Gas Pressure') or the burner failing to cycle even when gas is present at the manifold.
  • Is this switch compatible with Propane (LP) systems? No, the 100208389 is specifically calibrated for Natural Gas. Using this on LP systems may result in incorrect setpoints and safety failures.
  • Can I use this on any Lochinvar boiler? While versatile, it is specifically intended for the EnergyRite and CBL/CBN/CHN series. Always check your specific model's manual to confirm the internal part number.

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

Shipping & Returns

Description

The Lochinvar & A.O. Smith 100208389 is a critical safety component designed specifically for monitoring natural gas pressure in high-performance heating systems. As a genuine OEM replacement pressure switch calibrated at 4.1" WC, it serves as the primary safeguard to prevent ignition or sustained operation during low-pressure scenarios. This part is a direct replacement for the obsolete PRS2004 and PRS2004K, ensuring seamless integration into existing assemblies without field modifications. It is engineered for the Lochinvar EnergyRite (ER) series, specifically models 252-402, and is frequently utilized across CBL, CBN, and CHN series boilers. For HVACR contractors, this low gas pressure switch offers the precise electrical feedback necessary to maintain BTU output and prevent burner instability. Its compact housing is built to withstand the thermal stress of commercial mechanical rooms, providing a reliable SPST or SPDT response when line pressure drops below safety thresholds.

Key Benefits:

  • OEM Compatibility: Exact replacement for PRS2004, 100208389, and 100208389K, ensuring verified factory specs.
  • Critical Calibration: Factory-set at 4.1" WC for precise detection of low natural gas supply pressure.
  • Broad Application: Designed for EnergyRite 252-402 and compatible with several Lochinvar CBL/CBN/CHN series boilers.
  • Enhanced Safety: Prevents hazardous combustion conditions caused by insufficient natural gas flow.
  • Durable Construction: Lightweight yet ruggedized for long-term cycling in commercial heating environments.

Common Questions:

  • What are the symptoms of a failing 100208389 switch? Common signs include intermittent lockout codes (often related to 'Low Gas Pressure') or the burner failing to cycle even when gas is present at the manifold.
  • Is this switch compatible with Propane (LP) systems? No, the 100208389 is specifically calibrated for Natural Gas. Using this on LP systems may result in incorrect setpoints and safety failures.
  • Can I use this on any Lochinvar boiler? While versatile, it is specifically intended for the EnergyRite and CBL/CBN/CHN series. Always check your specific model's manual to confirm the internal part number.

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.