Description
Lochinvar & A.O. Smith 100208387 Pressure Switch Overview
The Lochinvar & A.O. Smith 100208387 is a Single Pole Single Throw (SPST) pressure switch factory-set at 1.15″ water column (wc). Designed as a direct OEM replacement, this pressure switch monitors combustion air or venting system pressure to ensure safe and proper operation of compatible Lochinvar and A.O. Smith boilers and water heaters. When the sensed pressure falls outside the specified setpoint, the switch interrupts the control circuit to protect the appliance and prevent unsafe operation.
Key Features
- OEM replacement pressure switch for Lochinvar and A.O. Smith equipment
- Single Pole Single Throw (SPST) switching configuration
- Factory-set pressure setpoint of 1.15″ water column (wc)
- Monitors combustion air or draft inducer pressure for safe appliance operation
- Interrupts control circuit if pressure setpoint is not achieved, preventing unsafe ignition
- Designed for direct, drop-in replacement — no field calibration required
- Durable construction for long-term reliability in demanding HVAC and hydronic applications
Application
- Compatible with select Lochinvar and A.O. Smith boilers and water heaters
- Intended for use in combustion air proving and venting pressure sensing circuits
- Always verify compatibility with your specific equipment model before installation
Specifications
- SKU / Part Number: 100208387
- Switch Type: SPST (Single Pole Single Throw)
- Pressure Setpoint: 1.15″ w.c. (water column)
- Brand: Lochinvar & A.O. Smith
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