Heat pump water heaters are believed to have been heard by many friends. Among water heaters, electricity, gas and solar energy are the most familiar people. The emergence of air sources, heat pumps and water heaters is more energy-efficient, environmentally friendly and safer. The characteristics have been loved and favored by many consumers, and have been supported by national policies. So, how to install heat pump water heaters ? What should I pay attention to during the installation process?
First, heat pump water heater installation method
The indoor unit and the insulated water tank are generally installed in the open air. If the heat pump water heater is an integrated machine, the copper pipe connection is not required, the suction port of the circulating water pump is connected to the heat insulating water tank, the outlet is connected to the inlet below the heat pump water heater, and the outlet is connected to the heat insulating water tank to form a circulation heating. Note that the water level of the insulated water tank is higher than that of the circulating water pump. Easy pumping will not cause the pressure of the heat pump water heater to be too high to protect the compressor.
It should be noted that the water storage tank and the main unit need not be parallel, as long as the deviation is not more than 2.5 meters.
If the home machine does not need it, just connect the main unit and the water tank with a water pipe.
The cycle engineering machine is to be installed:
The circulating heating project consists of a heat pump unit, a hot water circulation pump, a hot water storage tank, a circulating control system, a solenoid valve, and a water pump connected to the water pump to form a complete system.
The cold water that meets the water quality requirements of the unit is directly added to the water tank, and the cold water pump in the water tank is circulated into the heat pump unit through the circulation pump to be heated to a higher water temperature, and the control system automatically controls the water supply and heating temperature until the user's requirements are met.
Second, heat pump water heater installation precautions
1. The air source heat pump is installed, and the air source heat pump power supply is turned on after the check is confirmed. List of accessories: Please check whether there is a manual and warranty card before installation. The power supply must be connected to the ground wire. Please do not change the power wiring. The wiring must be completed by a qualified electrician and must meet the electrical safety specifications. . Do not put anything in the air outlet of the air source heat pump. This is dangerous. The fan runs at high speed and is careful to cause personal injury.
2. The air source heat pump is designed according to the following conditions of use. The ambient temperature is -25~50 °C. If the air source heat pump is to be changed, maintenance and cleaning must be carried out when maintaining the air source heat pump. Is the air
The source heat pump is in the power off state. When not in use: Turn off the power and disconnect the switch. In areas where the minimum temperature of the weather forecast is below 0 °C, the unit considers antifreeze; it is recommended to add antifreeze, and the ratio of the mixture to the temperature of -20 °C in the pipeline is not frozen. The unit is not used during the holidays. It is strictly forbidden to shut down the power directly without shutting down the water, which may cause the water inside the unit to freeze and freeze. The unit should be kept dry and well ventilated. Clean the air side heat exchanger regularly to maintain good heat transfer. If the downtime is long, the water in the unit piping should be drained, and the power supply should be cut off and the protective cover should be placed. When running again, check the system thoroughly before starting up.
3, the host heat exchanger cleaning, it is recommended to use 50 ° C -60 ° C, the concentration of 15% hot phosphoric acid to clean the heat exchanger, start the host with a circulating water pump cleaning for 3 hours, and finally rinse with tap water 3 times. (It is recommended to reserve a three-way interface when installing the pipeline to prevent the cleaning fluid from entering the water tank and sealing the interface with a wire plug) in case of cleaning. It is forbidden to clean the heat exchanger and the water tank with a corrosive cleaning solution.
Third, heat pump water heater purchase tips
1. Documents, formal factory certificates are complete, and can be verified on the website of relevant government departments. (production license, inspection report, 3C certification); appearance, regular factory work well, solid materials and heavy weight. Usually, the outer casing is made of poor materials. Enterprises that are not aesthetically pleasing and will not be willing to spend money will cut corners and lose weight in other parts. The nameplate, regular air can be shipped with the nameplate with technical parameters on the fuselage. We can see the system. Heat, power, water, weight, etc. Pay attention to the rated input power, the brand model of the compressor, and whether there is electrical assistance. These three factors are related to the performance of the whole machine. Generally speaking, the closer the input power is to the performance of the machine number, the better the machine input. The power should be above 0.9kw, and less than 0.9kw is a cut-throat.
2. How long is the promised shelf life? In general, the longer the product's shelf life, is also a reflection of the merchant's confidence in the product. This reflects the quality of the product from the side. The minimum working temperature, the general "pseudo-junior", "no-name" minimum operating temperature is not lower than -5 ° C, the regular manufacturer's product is -15 ° C, low-temperature model -25 ° C, and there is no difference between the North and the South. The air energy ultra-low temperature unit operates normally in the winter ambient temperature -25 °C, and the energy efficiency ratio of the heating performance is also increased by more than 30%. There are two main compressors and air energy water heater compressors, screw compressor and scroll air compression. machine. The screw compressor has a good dynamic balance, but the noise is relatively large. The scroll air compressor is small in size, light in weight, small in vibration, low in energy consumption, long in life, stable in operation and low in noise. It is known as “super static compressor”. Tianshu air energy water heater adopts scroll air compressor, and adopts subwoofer external rotation. The fan has low noise, compact structure and high efficiency and high air volume. The specially designed muffler of the compressor is outsourced, which can be used for micro-seismic, frequency-defining, sound-absorbing and sound-absorbing.
3, the liner material. The inner liner mainly has stainless steel inner liner and enamel inner liner. The enamel liner is neither rust nor water-free, and has a strong pressure resistance; however, the enamel is easily peeled off at high temperatures, which jeopardizes the service life of the liner. The air energy water heater uses a stainless steel inner tank with good material quality, high strength, high temperature resistance and corrosion resistance; At present, the market is mainly stainless steel and painted panels. The paint panel is easy to fall off after a long time. The air energy water heater is spray-coated with zinc, which not only guarantees the quality, but also guarantees the appearance and plays the role of decoration; the thickness of the insulation layer and the thickness of the insulation layer generally need 50mm~60mm.
Nowadays, there are more and more people who choose to install heat pump water heaters. Because they are energy-saving, environmentally friendly and safe, they are also supported by national policies, so they are very popular. The above is the installation method of heat pump water heater and the installation precautions and purchasing skills of heat pump water heater introduced by Xiaobian. If you want to know more about decoration information, please continue to pay attention to the decoration home network.
More related wonderful reading:
Air source heat pump water heater principle water heater purchase tips
What is a heat pump water heater? How to choose a heat pump water heater?
How about a heat pump water heater? What is the price of heat pump water heater?
