Description
Lochinvar & A.O. Smith 100166244 SPDT Pressure Switch Overview
The Lochinvar & A.O. Smith 100166244 is an OEM replacement SPDT (Single-Pole, Double-Throw) pressure switch designed for use in Lochinvar and A.O. Smith water heater and boiler applications. Engineered to factory specifications, this pressure switch monitors system pressure and provides reliable switching action to protect equipment and ensure safe, efficient operation.
Key Features
- Set point: 1.06″ water column (“wc) — factory-calibrated for precise actuation
- SPDT (Single-Pole, Double-Throw) switching configuration for versatile circuit control
- Direct OEM replacement part — SKU 100166244
- Compatible with select Lochinvar and A.O. Smith water heater and boiler models
- Monitors draft pressure to confirm proper venting and combustion airflow
- Helps prevent unsafe operation under abnormal pressure conditions
- Durable construction for long-lasting, dependable performance
Application
This pressure switch is commonly used as a draft or combustion air proving switch in residential and light commercial Lochinvar and A.O. Smith heating equipment. It verifies that the induced draft blower is operating correctly before allowing the burner to fire, providing an essential safety interlock in the ignition sequence.
Why Choose OEM Replacement Parts?
Using genuine OEM-specified components like the 100166244 ensures compatibility, maintains equipment warranty compliance, and delivers the performance reliability your customers depend on. Always verify compatibility with your specific unit model before installation.
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