Emerson Alco 049638 Expansion Valve Els PW 17895 while the 1/4-inch quick-connect terminals

while the 1/4-inch quick-connect terminals ensure secure low-voltage wiring

Normally Closed Logic: Provides a natural fail-safe position for heating or cooling loops

and SZ series compressors

For adjustable timing applications

The spring determines the mechanical tension on the diaphragm to set the outlet pressure regardless of gas density

Emerson Alco 049638 Expansion Valve Els PW 17895 while the 1/4-inch quick-connect terminalsThe 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