It is a device that raises the temperature of cold water to hot water in a limited range within a certain period of time through various physical principles. According to different principles, it can be divided into electric water heaters, gas water heaters, solar water heaters, magnetic water heaters, air water heaters and other types. A complete household multifunctional water heater consists of two main parts: refrigerating gas and heating hot water.
These two parts are closely linked and inseparable, and must play a role at the same time. That is to say, while making hot water, it cools the kitchen, or it also cools the kitchen while making hot water. Its internal structure is mainly composed of four core components: compressor, condenser, expansion valve and evaporator.
Extended information 1. The instructions of Haier electric wall-hung boiler are divided into safety precautions, installation instructions, use instructions, maintenance and cleaning instructions, specifications-packing list and other parts.
2. Safety precautions indicate what dangerous operations should be avoided when using Haier electric wall-hung boiler, including what dangerous environments the products can't be placed in and what dangerous ways they can't be operated, and after-sales service information of Haier electric wall-hung boiler, etc.
3. The installation instructions tell users to check the circuit and waterway before using the Haier electric wall-hung boiler water heater, and newly decorate the water pipe and water device to ensure that the device has no water leakage; Positioning of water heater before installation: according to customer's demand, install water heater with lunch box: Wiring of water heater: Disassemble the transparent rubber plate on the back of water heater, loosen the terminal screw, insert the lead deeply into the terminal fastening screw, and pull the lead hard to see if it will loosen.