Lennox 11U65 60″wc SPST Pressure Switch

Description

Lennox 11U65 Pressure Switch Overview

The Lennox 11U65 is a Single-Pole Single-Throw (SPST) pressure switch engineered as a direct OEM replacement for compatible Lennox heating and HVAC systems. Rated at 60″ water column (60″wc), this switch monitors system pressure and provides reliable safety shutoff to protect equipment from operating outside safe pressure parameters.

Key Features

• OEM Lennox replacement pressure switch – ensures proper fit and function
• 60″wc (inches water column) pressure rating for precise system monitoring
• SPST (Single-Pole Single-Throw) switching action for straightforward circuit control
• Designed to protect furnace and air handler components from pressure-related faults
• Helps maintain safe, efficient system operation by detecting abnormal pressure conditions
• Direct drop-in replacement minimizes installation time and complexity

Application

The 11U65 pressure switch is commonly used in Lennox furnaces and air-handling equipment to monitor draft inducer or combustion air pressure. When pressure falls outside the acceptable range, the switch opens the control circuit, preventing unsafe operation and protecting the heat exchanger and other critical components.

Why Choose an OEM Lennox Pressure Switch?

Using a genuine Lennox replacement part ensures compatibility with your system’s control board and safety circuits. An improperly rated or non-OEM pressure switch can lead to nuisance lockouts or, worse, unsafe equipment operation. The 11U65 is built to Lennox specifications for dependable, long-term performance.

Specifications

• Brand: Lennox
• Part Number / SKU: 11U65
• Switch Type: SPST (Single-Pole Single-Throw)
• Pressure Rating: 60″wc (inches water column)
• Application: Lennox furnaces and HVAC air-handling systems