Emerson Alco 049638 Expansion Valve Els PW 17895 Key Benefits: Precise Fuel Regulation:

Key Benefits: Precise Fuel Regulation: Includes factory-calibrated orifices to ensure correct BTU input and manifold pressure

protecting the silicone diaphragm and calibration spring from industrial wear

Skin oils can create hot spots on the surface of the silicon nitride element

System Reliability: Facilitates consistent gas burner ignition

While primarily an OEM match for Trane and American Standard

Emerson Alco 049638 Expansion Valve Els PW 17895 Key Benefits: Precise Fuel Regulation:The Emerson Alco 049638, also designated as Model AAE 4 HCA, is a high performance thermal expansion valve engineered specifically for air conditioning and heat pump applications. This externally equalized TXV features a 4 ton capacity optimized for R22 and R407C refrigerants, utilizing a specialized heat pump charge to ensure reliable superheat control across varying ambient conditions. Designed with a straight body and 3 8" x 1 2" ODF sweat