it maintains 0

the McDonnell & Miller 194-B acts as a combination controller

providing the exact pin-outs and logic for non-communicating 2-stage heating and cooling applications

and the sensing bulb must be positioned so the capillary end is higher than the plugged end

York S1-4101-00 Valve 318973-401 it maintains 0The York S1 4101 00 Valve is a direct acting solenoid valve engineered specifically for high pressure demand in R410A systems. This E2S120 HP solenoid valve features a 1 4" sweat (ODF) connection and is designed as a normally closed (NC) component, ensuring precise refrigerant flow control during equipment cycling. Built to meet rigorous OEM standards, this refrigerant solenoid valve provides the necessary durability to handle the increased operating