Lochinvar & A.O. Smith 100093632 Switch
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Lochinvar & A.O. Smith 100093632 Switch

Lochinvar & A.O. Smith 100093632 Switch

The Lochinvar & A.O. Smith 100093632 Switch is a critical safety component designed for high-efficiency commercial boilers and residential water heaters, including the Polaris PG series. This heavy-duty air pressure switch is factory-calibrated to a 1.6" w.c. setpoint, ensuring the combustion blower provides sufficient drafting before the ignition sequence initiates. Utilizing an SPDT (Single Pole Double Throw) configuration with normally open (N.O.) contacts, it effectively monitors differential pressure to prevent hazardous operation under blocked vent or intake conditions.

Built for long-term reliability in demanding HVACR systems, this OEM replacement part (replaces legacy part 6903769) integrates seamlessly with existing control boards and pressure tubing. Field technicians rely on the 100093632 pressure switch for precise 1.6" water column sensing, which is essential for maintaining the sealed combustion integrity required in modern condensing units. Its robust housing and high-quality diaphragm are engineered to withstand the frequent cycling of high-output water heating applications.

Key Benefits:
  • Precise 1.6" w.c. Activation: Ensures proper airflow and venting before the gas valve opens, protecting the heat exchanger.
  • OEM Compatibility: Specifically engineered for A.O. Smith Polaris and Lochinvar units to maintain factory safety standards.
  • SPDT Versatility: The Single Pole Double Throw design allows for versatile wiring configurations in complex HVAC control circuits.
  • Enhanced Safety: Effectively detects flue obstructions or blower motor failure to prevent carbon monoxide risks.
Common Questions:
  • What are the symptoms of a failing pressure switch? Common signs include the blower running continuously without ignition or the control board throwing a "pressure switch stuck open" error code.
  • Is this switch compatible with LP and Natural Gas units? Yes, as long as the 1.6" w.c. requirement matches the appliance’s technical manual, it functions across different fuel types.
  • How do I test the 100093632 switch? Use a manometer to verify the 1.6-inch water column pressure is reaching the switch and a multimeter to check for continuity across the normally open terminals when triggered.

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.

$18.18

Original: $51.94

-65%
Lochinvar & A.O. Smith 100093632 Switch

$51.94

$18.18

Lochinvar & A.O. Smith 100093632 Switch

The Lochinvar & A.O. Smith 100093632 Switch is a critical safety component designed for high-efficiency commercial boilers and residential water heaters, including the Polaris PG series. This heavy-duty air pressure switch is factory-calibrated to a 1.6" w.c. setpoint, ensuring the combustion blower provides sufficient drafting before the ignition sequence initiates. Utilizing an SPDT (Single Pole Double Throw) configuration with normally open (N.O.) contacts, it effectively monitors differential pressure to prevent hazardous operation under blocked vent or intake conditions.

Built for long-term reliability in demanding HVACR systems, this OEM replacement part (replaces legacy part 6903769) integrates seamlessly with existing control boards and pressure tubing. Field technicians rely on the 100093632 pressure switch for precise 1.6" water column sensing, which is essential for maintaining the sealed combustion integrity required in modern condensing units. Its robust housing and high-quality diaphragm are engineered to withstand the frequent cycling of high-output water heating applications.

Key Benefits:
  • Precise 1.6" w.c. Activation: Ensures proper airflow and venting before the gas valve opens, protecting the heat exchanger.
  • OEM Compatibility: Specifically engineered for A.O. Smith Polaris and Lochinvar units to maintain factory safety standards.
  • SPDT Versatility: The Single Pole Double Throw design allows for versatile wiring configurations in complex HVAC control circuits.
  • Enhanced Safety: Effectively detects flue obstructions or blower motor failure to prevent carbon monoxide risks.
Common Questions:
  • What are the symptoms of a failing pressure switch? Common signs include the blower running continuously without ignition or the control board throwing a "pressure switch stuck open" error code.
  • Is this switch compatible with LP and Natural Gas units? Yes, as long as the 1.6" w.c. requirement matches the appliance’s technical manual, it functions across different fuel types.
  • How do I test the 100093632 switch? Use a manometer to verify the 1.6-inch water column pressure is reaching the switch and a multimeter to check for continuity across the normally open terminals when triggered.

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

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Description

The Lochinvar & A.O. Smith 100093632 Switch is a critical safety component designed for high-efficiency commercial boilers and residential water heaters, including the Polaris PG series. This heavy-duty air pressure switch is factory-calibrated to a 1.6" w.c. setpoint, ensuring the combustion blower provides sufficient drafting before the ignition sequence initiates. Utilizing an SPDT (Single Pole Double Throw) configuration with normally open (N.O.) contacts, it effectively monitors differential pressure to prevent hazardous operation under blocked vent or intake conditions.

Built for long-term reliability in demanding HVACR systems, this OEM replacement part (replaces legacy part 6903769) integrates seamlessly with existing control boards and pressure tubing. Field technicians rely on the 100093632 pressure switch for precise 1.6" water column sensing, which is essential for maintaining the sealed combustion integrity required in modern condensing units. Its robust housing and high-quality diaphragm are engineered to withstand the frequent cycling of high-output water heating applications.

Key Benefits:
  • Precise 1.6" w.c. Activation: Ensures proper airflow and venting before the gas valve opens, protecting the heat exchanger.
  • OEM Compatibility: Specifically engineered for A.O. Smith Polaris and Lochinvar units to maintain factory safety standards.
  • SPDT Versatility: The Single Pole Double Throw design allows for versatile wiring configurations in complex HVAC control circuits.
  • Enhanced Safety: Effectively detects flue obstructions or blower motor failure to prevent carbon monoxide risks.
Common Questions:
  • What are the symptoms of a failing pressure switch? Common signs include the blower running continuously without ignition or the control board throwing a "pressure switch stuck open" error code.
  • Is this switch compatible with LP and Natural Gas units? Yes, as long as the 1.6" w.c. requirement matches the appliance’s technical manual, it functions across different fuel types.
  • How do I test the 100093632 switch? Use a manometer to verify the 1.6-inch water column pressure is reaching the switch and a multimeter to check for continuity across the normally open terminals when triggered.

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.