Description
The Laars Heating Systems E2074501 is a precision-engineered pressure switch designed as a direct OEM replacement for Laars boiler and heating systems. With a 0.3″ water column (wc) set point and a Single-Pole Single-Throw (SPST) switching configuration, this pressure switch provides dependable safety and operational control by monitoring combustion air or flue gas pressure to ensure safe burner operation.
The 1/4″ barb connection makes installation straightforward, allowing for a secure and leak-free hose attachment to the pressure sensing port. This switch is a critical safety component — if the required pressure differential is not met, the switch interrupts the control circuit to prevent unsafe burner operation.
Key Features
- OEM Laars Heating Systems replacement pressure switch
- 0.3″ water column (wc) set point for precise pressure sensing
- SPST (Single-Pole Single-Throw) switching action
- 1/4″ barb connection for easy hose attachment
- Monitors combustion air or flue gas pressure for safe burner operation
- Interrupts control circuit if required pressure differential is not achieved
- Direct OEM replacement — no modifications required
Applications
- Laars boilers and hydronic heating systems
- Combustion air proving and draft inducer monitoring
- Residential and light commercial heating equipment
Product Specifications
- Brand: Laars Heating Systems
- Part Number: E2074501
- Set Point: 0.3″ wc
- Switch Type: SPST
- Connection: 1/4″ barb
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