Lennox 80W62 Pressure Switch 0.75 Inches Wc

Product Description

The LENNOX 80W62 is a pressure switch designed for use in HVAC systems. It monitors system pressure and opens or closes an electrical circuit in response to a set pressure threshold, protecting equipment from operating outside safe conditions. Set at 0.75 inches water column (WC), this switch signals the control board when adequate draft or airflow pressure is present or lost. Licensed HVAC technicians install this component as part of routine maintenance, system repair, or control circuit troubleshooting.

This pressure switch is suited for residential and light-commercial HVAC applications where pressure-sensing protection is required in the control circuit. It is typically found in gas furnaces and air handlers where inducer motor operation must be verified before ignition is allowed to proceed. Install scenarios include direct OEM replacement during a no-heat service call or as part of a control circuit diagnostic repair.

Key Features

• Set point of 0.75 inches WC for precise pressure monitoring
• Opens or closes control circuit based on sensed system pressure
• OEM-style replacement for HVAC system pressure switch applications
• Compact, lightweight design at 0.25 pounds

Compatibility

Designed as an OEM-style replacement pressure switch for HVAC systems requiring a 0.75 inches WC set point.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect power to the unit at the disconnect and thermostat before removing or installing the pressure switch. Verify the port connections and tubing routing match the original configuration before restoring power. Consult applicable local mechanical codes and the equipment manufacturer service documentation when performing the replacement.

Technical Specifications

• Set Point: 0.75 inches WC
• Weight: 0.25 pounds
• Application: HVAC System

Standard Information

• Brand: LENNOX
• Manufacturer Part Number: 80W62