I. Classification

The heat pump water heater can be divided into: air source heat pump water heater (with ambient air as heat source) and water source heat pump water heater (with water as heat source);

According to different working methods, it can be divided into: one-heating heat pump water heater (machine), circulating heating heat pump water heater (machine), static heating heat pump water heater (device).

The above types of products include integral and split heat pump water heaters. The more popular heat pump water heater is a split heat pump water heater, which consists of an outdoor main unit and an indoor insulated water tank.

Second, purchase

1. Choose a brand. Heat pump water heaters are generally used as durable consumer goods. When a fault occurs during use, the consumer needs the manufacturer to provide after-sales service to inspect, repair or replace parts. Product manufacturers with certain well-known brands have a complete set of quality management systems, and have better product quality assurance capabilities. The products they produce have certain guarantees in terms of performance and safety. When you purchase, you can go to a large home appliance sales mall to buy products, which can provide long-term, excellent after-sales service.

2. Determine the ability. When purchasing a heat pump water heater (product), the heat pump is generally selected according to the heat capacity. A simple calculation method for the heat production capacity of a domestic heat pump water heater:

For example: according to the national standard of household appliances, in the environment of dry ball 20 ° C / wet ball 15 ° C, 200 L water is heated from 15 ° C to 55 ° C and then shut down, the total accumulated heating time is 120 min.

The calorific value (ie, the ability to produce hot water) can be calculated as Q=4.18*200*(55-15)/120/60=4.64kw.

When purchasing, the capacity of the heat pump water heater can be selected according to the purpose, the number of households and the habit of using water.

3. Choose an energy efficiency ratio. The surface of the heat pump water heater is affixed with an energy efficiency label. In the energy efficiency label, there are four parameters: energy efficiency rating, coefficient of performance, heating capacity, and heating power consumption. The energy efficiency rating is divided into 1 to 5 levels, with a maximum of 1 level and a minimum of 5 levels. In everyday use, the significance of high energy efficiency is to use less electrical energy to achieve good heating. The energy-efficient effect of the energy-efficient heat pump water heater is very significant.

Third, maintenance

1. The temperature in winter is low and the unit is not activated for a long time. Before starting the machine, the unit should be energized first. The power-on time should not be lower than 8 hours. When the outdoor temperature is low in winter, the power cannot be cut off after a short time shutdown. When draining water from the unit, tank, and piping. After the user has finished draining the water, the unit will be used again. The water tank must be filled with water and drained before starting.

2. Clean the water tank regularly to ensure the quality of the hot water.

3. Open the safety valve handle regularly to check if there is any blockage. If there is any blockage, please replace it with a professional.

4. After long-term use of the heat pump water heater, the electrical circuit and control components inside the unit will have different degrees of aging, which will cause serious damage to the unit and the human body. Regularly let the professional hot water pump ( The circuit of the device is inspected, the aging components are replaced, and the refrigerant is replenished, which prevents the components from aging and harms the machine and the human body, and keeps the heat pump water heater in a good working condition.

5. When the heat pump water heater is not used for a long time, cover the outdoor unit with a protective cover to avoid sun, rain, dust deposition, which may cause difficulties in cleaning and maintenance in the future. Regularly check the waterway, whether the valve body is broken or plugged, and if any interface leaks, if it is treated immediately.