Emerson Alco 049638 Expansion Valve Els PW 17895 Common Questions How do I

Common Questions How do I prevent damage during installation

For adjustable timing applications

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

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

Emerson Alco 049638 Expansion Valve Els PW 17895 Common Questions How do IThe 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