the Class 20 or 30 settings allow for longer ramp times without triggering a thermal overload trip

While the Trane CNT4991 fits many residential and light commercial models

including the AI2

In total darkness

preventing mechanical strain from compromising the internal wiring or the PTC starting device interfaces

Lennox 52W74 TXV Valve 320819-301 the Class 20 or 30The 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