Allied Air 11U69 Pressure Switch 0.50 Inches Wc

Product Description

The ALLIED AIR 11U69 is a pressure switch designed for use in gas furnace systems, where it monitors draft pressure to verify proper venting before allowing ignition to proceed. This switch actuates at 0.50 inches water column (W.C.), providing a defined setpoint for the furnace control board to confirm that the inducer motor is operating correctly. It is a direct-replacement component installed by licensed HVAC technicians during routine service or diagnostic repair. The 11U69 is a compact, single-function switch that helps maintain safe furnace operation by preventing ignition under improper draft conditions.

This pressure switch is suited for residential gas furnace applications where a factory-setpoint replacement is required. It is commonly installed in induced-draft or forced-draft furnace configurations. The actuating setpoint of 0.50 inches W.C. matches the original equipment specification, making it appropriate for furnaces that call out the Lennox 104371-06 as the listed replacement reference. HVAC service technicians typically encounter this switch during no-heat calls where the control board registers a pressure switch fault code.

Key Features

• Actuates at 0.50 inches water column (W.C.) for precise draft pressure sensing
• OEM-style replacement matches original equipment setpoint
• Referenced as a direct replacement for Lennox 104371-06
• Compatible with induced-draft and forced-draft furnace configurations
• Single-function design simplifies diagnosis and swap-out during service calls

Compatibility

Referenced as a direct replacement for Lennox part number 104371-06. Designed as an OEM-style replacement pressure switch for residential gas furnaces requiring a 0.50 inches W.C. actuation setpoint.

Installation Notes

Installation should be performed by a licensed HVAC technician. Shut off power to the furnace at the disconnect switch and turn off the gas supply before removing the existing pressure switch. The hose barb connection and mounting orientation should match the original switch configuration. Verify the replacement setpoint matches the furnace manufacturer specification before returning the unit to service.

Technical Specifications

• Actuation Setpoint: 0.50 inches W.C.

Standard Information

• Brand: ALLIED AIR
• Manufacturer Part Number: 11U69