... cooling, the desuperheaters make use of the hot refrigerant vapor leaving the compressor to heat the water through a ... cell material.REFRIGERANT CIRCUITCopper tube connection with charge valve, filter, sight glass, gas-liquid separator, thermostatic expansion ... completed also with 4-way valve, liquid receiver and one way valve.HYDRONIC CIRCUITBuilt with air vent valve, water drain connection, and ...