Lochinvar & A.O. Smith 100109522 Switch
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Lochinvar & A.O. Smith 100109522 Switch

Lochinvar & A.O. Smith 100109522 Switch

The Lochinvar & A.O. Smith 100109522 Pressure Switch is a critical safety component designed for precise pressure monitoring in high-efficiency boilers, furnaces, and water heaters. This SPDT pressure switch (Single Pole Double Throw) features a fixed set point, typically calibrated to 0.95” WC, ensuring that the combustion blower is moving sufficient air before the ignition sequence initiates. As a genuine OEM replacement part, the 100109522 is engineered to maintain the performance standards of series like the CXN275100/A and various Lochinvar Knight models. Field technicians rely on this HVAC air pressure switch to prevent hazardous conditions such as overheating or incomplete combustion by interrupting the electrical signal to gas valves or burners if venting becomes obstructed. This boiler pressure switch is built for durability in demanding mechanical environments, providing the reliability required to sustain optimal HVAC airflow control and system uptime for your clients.

Key Benefits:

  • OEM Compatibility: Exact replacement for Lochinvar and A.O. Smith 100109522, ensuring drop-in installation and factory-spec calibration.
  • System Safety: Effectively monitors inducer blower performance to prevent operation during flue blockages or vent restrictions.
  • Heavy-Duty Contacts: Features an SPDT contact configuration for versatile integration into various control circuits.
  • Optimized Combustion: Helps maintain precise air-to-fuel ratios by verifying 0.95” WC pressure before allowing the ignition cycle.
  • Broad Application: Suitable for a wide range of commercial and residential furnaces, boilers, and water heaters.

Common Questions:

How do I know if my 100109522 pressure switch is failing?
Common symptoms include the inducer motor running continuously without the burner igniting, or the control board throwing a "pressure switch stuck open" or "stuck closed" fault code. Always check for blocked venting and ensure the tubing is free of moisture before replacing the switch.

Can I use a universal switch instead of the 100109522?
While universal switches exist, it is highly recommended to use this genuine OEM part. This switch is factory-calibrated to a specific 0.95” WC set point; using a switch with an incorrect rating can lead to safety hazards or frequent nuisance tripping.

What does the SPDT configuration mean for this part?
The Single Pole Double Throw (SPDT) design allows the switch to act as a changeover, meaning it can close one circuit while opening another, providing flexible logic control for the HVAC system's ignition module.

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.

$9.71

Original: $27.73

-65%
Lochinvar & A.O. Smith 100109522 Switch

$27.73

$9.71

Lochinvar & A.O. Smith 100109522 Switch

The Lochinvar & A.O. Smith 100109522 Pressure Switch is a critical safety component designed for precise pressure monitoring in high-efficiency boilers, furnaces, and water heaters. This SPDT pressure switch (Single Pole Double Throw) features a fixed set point, typically calibrated to 0.95” WC, ensuring that the combustion blower is moving sufficient air before the ignition sequence initiates. As a genuine OEM replacement part, the 100109522 is engineered to maintain the performance standards of series like the CXN275100/A and various Lochinvar Knight models. Field technicians rely on this HVAC air pressure switch to prevent hazardous conditions such as overheating or incomplete combustion by interrupting the electrical signal to gas valves or burners if venting becomes obstructed. This boiler pressure switch is built for durability in demanding mechanical environments, providing the reliability required to sustain optimal HVAC airflow control and system uptime for your clients.

Key Benefits:

  • OEM Compatibility: Exact replacement for Lochinvar and A.O. Smith 100109522, ensuring drop-in installation and factory-spec calibration.
  • System Safety: Effectively monitors inducer blower performance to prevent operation during flue blockages or vent restrictions.
  • Heavy-Duty Contacts: Features an SPDT contact configuration for versatile integration into various control circuits.
  • Optimized Combustion: Helps maintain precise air-to-fuel ratios by verifying 0.95” WC pressure before allowing the ignition cycle.
  • Broad Application: Suitable for a wide range of commercial and residential furnaces, boilers, and water heaters.

Common Questions:

How do I know if my 100109522 pressure switch is failing?
Common symptoms include the inducer motor running continuously without the burner igniting, or the control board throwing a "pressure switch stuck open" or "stuck closed" fault code. Always check for blocked venting and ensure the tubing is free of moisture before replacing the switch.

Can I use a universal switch instead of the 100109522?
While universal switches exist, it is highly recommended to use this genuine OEM part. This switch is factory-calibrated to a specific 0.95” WC set point; using a switch with an incorrect rating can lead to safety hazards or frequent nuisance tripping.

What does the SPDT configuration mean for this part?
The Single Pole Double Throw (SPDT) design allows the switch to act as a changeover, meaning it can close one circuit while opening another, providing flexible logic control for the HVAC system's ignition module.

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 100109522 Pressure Switch is a critical safety component designed for precise pressure monitoring in high-efficiency boilers, furnaces, and water heaters. This SPDT pressure switch (Single Pole Double Throw) features a fixed set point, typically calibrated to 0.95” WC, ensuring that the combustion blower is moving sufficient air before the ignition sequence initiates. As a genuine OEM replacement part, the 100109522 is engineered to maintain the performance standards of series like the CXN275100/A and various Lochinvar Knight models. Field technicians rely on this HVAC air pressure switch to prevent hazardous conditions such as overheating or incomplete combustion by interrupting the electrical signal to gas valves or burners if venting becomes obstructed. This boiler pressure switch is built for durability in demanding mechanical environments, providing the reliability required to sustain optimal HVAC airflow control and system uptime for your clients.

Key Benefits:

  • OEM Compatibility: Exact replacement for Lochinvar and A.O. Smith 100109522, ensuring drop-in installation and factory-spec calibration.
  • System Safety: Effectively monitors inducer blower performance to prevent operation during flue blockages or vent restrictions.
  • Heavy-Duty Contacts: Features an SPDT contact configuration for versatile integration into various control circuits.
  • Optimized Combustion: Helps maintain precise air-to-fuel ratios by verifying 0.95” WC pressure before allowing the ignition cycle.
  • Broad Application: Suitable for a wide range of commercial and residential furnaces, boilers, and water heaters.

Common Questions:

How do I know if my 100109522 pressure switch is failing?
Common symptoms include the inducer motor running continuously without the burner igniting, or the control board throwing a "pressure switch stuck open" or "stuck closed" fault code. Always check for blocked venting and ensure the tubing is free of moisture before replacing the switch.

Can I use a universal switch instead of the 100109522?
While universal switches exist, it is highly recommended to use this genuine OEM part. This switch is factory-calibrated to a specific 0.95” WC set point; using a switch with an incorrect rating can lead to safety hazards or frequent nuisance tripping.

What does the SPDT configuration mean for this part?
The Single Pole Double Throw (SPDT) design allows the switch to act as a changeover, meaning it can close one circuit while opening another, providing flexible logic control for the HVAC system's ignition module.

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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