Lennox High Pressure Switch Manual Reset

The Lennox High Pressure Switch with Manual Reset is a refrigerant system safety control for Lennox HVAC equipment. It monitors high-side refrigerant pressure and opens the control circuit if pressure rises above a preset cutout point. This helps protect the compressor and other components from damage caused by excessive head pressure.

Key Features:

• Manual reset design: the switch stays open after a high-pressure trip until it is reset by hand, so the cause of the fault can be found and corrected first
• Factory-calibrated pressure setting for dependable, repeatable protection
• Designed to work in the compressor control circuit of Lennox air conditioning and heat pump systems
• Available in different pressure settings, so you can match the switch to the requirements of your equipment
• Genuine Lennox replacement part for a proper fit and function

A high pressure switch can trip because of a dirty condenser coil, a failed condenser fan, a refrigerant overcharge, or an airflow restriction. A manual reset switch helps make sure these problems are investigated before the system is put back into operation. Choose the variant that matches your unit's required pressure rating.