Lennox 52W74 TXV Valve 340793-762 or a failure to establish

or a failure to establish a flame due to insufficient airflow

Key Benefits Exact OEM Match: Direct 1:1 replacement for 5H75032A and 5H75032

and secure the flange to the duct wall

this is an automatic reset rollout switch

Key Benefits Direct X13 Replacement: Designed with the same connector block and footprint to simplify retrofitting in existing air handlers

Lennox 52W74 TXV Valve 340793-762 or a failure to establishThe Lennox 52W74 TXV Valve is a critical metered expansion device engineered for high tonnage R410A refrigerant systems. Designed to maintain precise superheat control at the evaporator, this thermostatic expansion valve (TXV) ensures optimal heat transfer and prevents liquid slugging, which is essential for protecting the compressor in commercial HVACR applications. With a robust 10 ton capacity, the 52W74 utilizes a threaded inlet and outlet for