The block temperature limit switch is engineered with a calibrated 350°F open and 250°F close setpoint

As a genuine Lennox 83L9001 equivalent

This part is primarily designed for the Type 05 pneumatic diaphragm-actuated series

it features a normally closed (N/C) configuration and is engineered to handle non-corrosive media including air

The sensor is designed for conductors up to 135A

Trane VAL12335 TXV 340155-7024 The block temperature limit switchThe Trane VAL12335 is a high performance TR6 5T TXV (Thermostatic Expansion Valve) designed to provide mission critical refrigerant metering for 5 ton HVAC systems. As a genuine OEM Trane expansion valve, this component is engineered to maintain precise superheat levels across varying load conditions, directly protecting the compressor from liquid slugging while maximizing evaporator efficiency. Constructed with a durable stainless steel body, the