Liebert 127935P4 Solenoid Coil 321894 709 The Schneider Electric (Viconics) VT7652B5031 The Schneider Electric (Viconics) VT7652B5031 is a 2H 2C programmable thermostat specifically engineered for decentralized control of multi stage rooftop units and heat pump applications ensuring the system capacity remains balanced without the need for high side pilot gas This heavy duty component provides the precise electromagnetic force required to initiate power transfers and maintain stable system pressure Always verify the part number against your unit's technical manual to ensure a correct match for the internal bypass circuitry