Heat pump type water chiller, also known as cold and warm type water chillers, cold and warm type unit can provide chilled water and hot water source is provided.
Cold and warm type unit is commonly used in air-cooled unit or small air conditioning unit (such as a window type air conditioner, body air conditioner, cabinet type air conditioner, etc.). Cold and warm type unit, mainly through in the unit to increase a four-way diverter valves can change the refrigerant flow path, condenser used as evaporator evaporator into the condenser. The water inlet and outlet of the connection of the casing tube heat exchanger, that is, the chilled water and the hot water source.
Refrigeration loop flow: when the unit in the cooling condition, the compressor outlet of high temperature and high pressure gaseous refrigerant through the four-way diverter valve into the condensation heat exchanger. Condensation heat transfer become high-pressure liquid refrigerant and through the one-way valve into the liquid storage tank, through the throttle valve as pressure liquid coolant, through the one-way valve 4 into the sleeve type evaporator endothermic and variable for low pressure gaseous refrigerant and gas-liquid separator and a four-way valve to reach the compressor suction mouth, refrigeration cycle.
Heating loop process: when the unit in the hot state, an exhaust port of the compressor out of the high-temperature and high-pressure refrigerant through the four-way valve enters into the casing for the heat exchanger on high-pressure liquid, then through the one-way valve 2 into the liquid storage tank, through the throttle valve as pressure liquid coolant, through the one-way valve 3 to reach a fin type heat exchanger (i.e. refrigeration condenser heat absorption and evaporation into low pressure gaseous refrigerant and gas-liquid separator and a four-way valve to the compressor suction and complete the heating cycle.