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Lennox 26W42 Dual Stage Pressure Switch 0.55/0.95 IWC

Part of: Lennox Pressure Switch

Other options in this family: Lennox 32C78 Lennox 33W19 Lennox 69W57 Lennox 36W77 Lennox 24W50

Manufacturer

Picture for manufacturer Lennox

Part Number

26W42
5 reviews
Sale Price

$67.24

In Stock (10)

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Product Details

The Lennox 26W42 is a two-stage pressure switch designed for use in Lennox HVAC systems. This safety component monitors the pressure differential in the furnace venting system to ensure proper combustion air flow and safe operation.

Key Features:

  • Dual-stage pressure settings: 0.55 IWC (inches water column) and 0.95 IWC
  • Verifies proper inducer motor operation and vent system pressure
  • Safety control prevents furnace operation if pressure differential is insufficient
  • Direct OEM replacement part for Lennox furnaces
  • Compact design for easy installation in existing furnace cabinets

This pressure switch is a critical safety component that confirms adequate negative pressure is present before allowing the furnace to ignite. The two-stage design allows for different pressure thresholds during the heating cycle, ensuring optimal performance and safety in compatible Lennox heating equipment.

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