Trane THT2541 Limit Switch 320735-701 the 42W31 is the official

the 42W31 is the official successor to part number 42W3101

This 2-way zone valve body is fully compatible with Schneider Electric AG and AH series actuators

Integrating this genuine Lennox part restores the system's safety sequence and protects high-value components from excessive thermal stress

this unit offers the essential flexibility required by service technicians to address specific site parameters within Trane HVAC systems

ideal for multi-fuel burner applications

Trane THT2541 Limit Switch 320735-701 the 42W31 is the officialWhen you're dealing with a residential furnace or RTU that's failing on the high limit circuit, the Trane THT2541 Limit Switch is the direct OEM replacement you need for reliable safety monitoring. This SPST (Single Pole Single Throw) thermal switch is engineered to protect the heat exchanger from critical overheating by interrupting the burner circuit if temperatures exceed safe operating parameters. As a veteran grade HVAC replacement part, it