Emerson Alco 049638 Expansion Valve Els PW 17895 The integrated lockout manual reset

The integrated lockout manual reset provides a critical "trip-free" safety mechanism

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

Common Questions How do I prevent damage during installation

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

For adjustable timing applications

Emerson Alco 049638 Expansion Valve Els PW 17895 The integrated lockout manual resetThe 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