Lennox 57W82 Pressure Switch 0.7 Inches Wc Orange

Product Description

The LENNOX 57W82 is a pressure switch rated at 0.7 inches water column (WC), color-coded orange for quick identification during service. Pressure switches are safety-sensing components found in gas furnaces and air handlers. They monitor negative pressure created by the inducer motor to confirm proper draft before allowing ignition. The orange color designation indicates a specific setpoint, helping technicians verify the correct switch is installed at a glance. This part is handled primarily by licensed HVAC technicians during routine maintenance or fault diagnosis.

This pressure switch is designed for use in HVAC systems where draft-proving or pressure-proving functions are required. It is a direct-fit replacement for failed or out-of-tolerance switches in furnace applications. When a furnace fails to ignite or throws a pressure-switch fault code, this is a common service part. Its compact form factor fits standard furnace control board wiring harnesses and tubing configurations typical of residential and light commercial gas heating equipment.

Key Features

• Rated setpoint of 0.7 inches WC for accurate draft or pressure proving
• Orange color coding allows fast visual confirmation of correct setpoint
• OEM-style replacement designed for HVAC furnace applications
• Compact form factor compatible with standard furnace tubing and wiring

Compatibility

Designed as an OEM-style replacement pressure switch for use in HVAC furnace and air handler systems requiring a 0.7 inches WC rated switch.

Installation Notes

Installation should be performed by a licensed HVAC technician. Always shut off power to the furnace at the disconnect switch and turn off gas supply before replacing a pressure switch. Disconnect the rubber sensing tube and electrical connector carefully, noting routing before removal. Verify the replacement switch setpoint and color code match the original before completing the repair.

Technical Specifications

• Item Type: Pressure Switch
• Setpoint: 0.7 inches WC
• Color: Orange
• Application: HVAC System
• Weight: 0.6 pounds

Standard Information

• Brand: LENNOX
• Manufacturer Part Number: 57W82