The Emerson Alco 056421 (Model XC-726HC2B) is a field-proven thermostatic expansion valve power assembly designed for high-capacity R22 refrigerant systems

2-way normally open solenoid valve engineered for precision flow control in demanding HVACR and process applications

this assembly offers a simplified Bard control board replacement path without requiring modifications to the original wiring harness

Does this kit require the system to be shut down for testing

York S1-025-37423-240 Heater 320734-701 The Emerson Alco 056421 (ModelThe York S1 025 37423 240 Heater is a high performance OEM replacement part designed for precision thermal management within light commercial and industrial HVAC systems. This 240V band heater delivers a focused 90 watt output, maintaining a steady temperature range of 28. 7C to 35. 7C. Designed specifically for direct surface contact, this crankcase heater or heating band ensures that critical components like compressors maintain optimal lubrication