Compressed water dispenser refrigeration principle: 1, press the refrigeration switch, power on, refrigeration green indicator light, the compressor began to start running. 2, the compressor operation can be absorbed in the evaporator has been gasification of the refrigerant vapor suction, and compressed together into a high-temperature, high-pressure gas, sent to the condenser. 3, refrigerant vapor condensate to the outside world by the condenser to dissipate the heat to form the condenser into a high-pressure liquid. This condensed liquid and then by capillary throttling down pressure into the evaporator, absorbing the heat of the cold gallons. Absorbed heat is room temperature water electric heat, so that the water temperature gradually decline. Then the refrigerant liquid is sucked back by the compressor. 4, the above is a complete refrigeration process, but generally this process is a continuous cycle to really achieve the purpose of cooling. 5, when the water temperature over time down to the set temperature, the refrigeration thermostat contacts disconnect, refrigeration green light off, the compressor stops, turn to the insulation condition. 6, after the power failure of the water temperature gradually back up, when the set temperature, refrigeration thermostat contacts action closure, turn on the thermostat. 7, the water temperature is gradually back up, when the temperature rise, the refrigeration temperature controller. Contacts closed, the green light on the power supply, the compressor runs. Such a cycle, the water temperature control between 4-12 ℃.

Drinking water machine heating principle: 1, press the heating switch, turn on the power supply, the heating circuit is turned on, the red heating indicator light, the electric heating tube heating. 2, when the water temperature rises to the set temperature, automatic reset thermostat automatically cut off the power supply, the red heating indicator light off, turn to keep warm condition. 3, after the power failure of the water temperature gradually decline, when it comes to the set temperature, the thermostat contact action closure, the temperature control thermostat contact action closure, the temperature control thermostat contact action closure, the temperature control thermostat contact action closure, the compressor runs. Turn on the power, the red heating indicator light, the electric heating tube again heating warming. 4, according to the above heating mode of continuous circulation, the water dispenser can control the water temperature between 85-95 ℃.

The principle of warm water dispenser: 1, press the heating switch, the power supply for the "heat preservation" indicator to provide power for the power indication. All the way to constitute a heating circuit, so that the electric heating tube heating heating heating; the other way for the "heating" indicator to provide voltage for the heating instructions. 2, hot tank of water heated to the set temperature, the thermostat contacts disconnect, cut off the heating, heating instructions circuit power supply, "heating" indicator light off. The "heating" indicator light goes out, the electric heating pipe stops heating. 3, the water temperature drops to the set temperature, the thermostat contact connects to the power supply circuit, the electric heating pipe re-generates heat, and so on and so forth to keep the water temperature between 85-95 ℃.

The warm water dispenser circuit adopts double protection elements, when the water dispenser is over temperature or short-circuit failure, the over-temperature fuse automatically melt or manually reset the thermostat to automatically disconnect the heating circuit power supply, play a protective role. Over-temperature insurer is a one-time thermal protection element, can not be reset, such as troubleshooting the replacement of new over-temperature insurer according to the specifications of the prototype number, and then press the reset button of the manual reset thermostat, contact closure can be re-opened to work. Water dispenser working temperature insurance device: shrinking refrigeration water dispenser in general has a temperature insurance control device, according to the temperature change can play the role of security. When the circuit appears overheating state, the protection device will be overloaded automatically fuse or disconnect the circuit, play a security role.