Description
The Lochinvar & A.O. Smith 100112850 is an OEM replacement pressure switch rated at 0.85″ water column (wc), engineered to maintain safe and reliable combustion system operation in Lochinvar and A.O. Smith water heaters and boilers.
Product Overview
Pressure switches are a critical safety component in gas-fired heating appliances. This switch monitors the negative pressure (draft) created by the inducer blower motor to verify proper venting conditions before allowing burner ignition. If the required pressure differential is not achieved — indicating a blocked flue, failed inducer, or venting issue — the switch interrupts the ignition sequence and prevents unsafe operation.
Key Features
- Rated setpoint: 0.85″ water column (wc)
- OEM replacement part for Lochinvar and A.O. Smith heating equipment
- Monitors inducer blower draft to confirm safe venting conditions
- Interrupts ignition sequence if proper pressure differential is not established
- Direct drop-in replacement for fast, accurate service
- Helps maintain manufacturer warranty compliance when using OEM parts
Application
- Compatible with select Lochinvar and A.O. Smith water heaters and boilers
- Designed for use in residential and light commercial heating systems
- Verify compatibility with your specific model number before ordering
Why Choose OEM?
Using genuine OEM replacement parts like the 100112850 ensures the pressure switch meets the exact factory specifications for your Lochinvar or A.O. Smith appliance. This helps protect system safety, maintain efficiency, and avoid nuisance lockouts caused by mismatched aftermarket components.
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