Emerson Alco 049638 Expansion Valve Els PW 17895 protecting the silicone diaphragm and

protecting the silicone diaphragm and calibration spring from industrial wear

System Reliability: Facilitates consistent gas burner ignition

This single pressure control is specifically engineered for compatibility with a wide range of York

Common Questions: Can this control be adjusted in the field

While primarily an OEM match for Trane and American Standard

Emerson Alco 049638 Expansion Valve Els PW 17895 protecting the silicone diaphragm andThe 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