01-12
With the shortlist of energy-saving subsidy project, air energy heat pump units have gradually entered thousands of households. Being able to use air energy heat pump units has also become a basic living ability of people. In the process of use, people usually encounter many problems. The following is a detailed explanation of the common fault analysis and diagnosis of the air energy heat pump unit. 14.jpg 1、 Fan does not rotate Fault analysis: it may be that the secondary high voltage is open circuit, or the power supply is not connected, or the capacitor is broken, or the motor is burned out. Diagnosis: check the sub high voltage switch for short circuit test. If it is broken, replace it immediately. Measure the line voltage, check the capacity of the capacitor, and replace the capacitor. 2、 The unit does not rotate and there is no display Fault analysis: it may be the power supply fault or the fuse is burnt out, the thermal overload protector is burnt out and the power line is loose. Diagnosis: First cut off the power, then check the power switch, update the power cord, and check the unit. 3、 Frost on compressor surface Fault analysis: It may be that the temperature sensor falls off due to expansion, or the expansion valve fails, or the chip is stuck, the temperature setting is wrong, or the refrigerant is not prepared enough. Diagnosis: readjust the device inside, replace the thermal expansion valve, readjust the temperature sensor, and pay attention to cleaning and inspection 4、 The compressor is noisy Fault analysis: the fixed part of the internal pipeline loosens and produces vibration, the thermal expansion is too large, the oil pressure is too low, or the muffler is damaged. Diagnosis: adjust the opening of the thermal expansion valve, check and fasten the compressor pipeline, and replace the lubricating oil and muffler.
05-17
The general heating method is to directly use energy to heat water. The energy efficiency of electric water heater is about 95%, and that of natural gas is about 75%. The heat pump unit uses electric energy to drive the compressor, not directly used to heat water. The heat energy actually comes from the environment.
05-17
1. In terms of operating cost, conventional solar energy operates almost at zero cost under direct sunlight. Unfortunately, in rainy, snowy days or at night, it can only rely on the auxiliary system to work. Statistics show that, in normal use, the annual power consumption of conventional solar energy auxiliary system is higher than the annual total power consumption of heat pump units. 2. In terms of investment: if the same water supply effect is achieved, the investment in heat pump hot water units is less than that in conventional solar energy products, and economic electric energy can be used to make hot water reserves when electricity consumption is low. 3. In terms of use: Conventional solar energy products are obviously affected by the weather. They cannot work in rainy, snowy and night days, while heat pump water heater units can work as usual in rainy, rainy, snowy, night or sunny days to provide hot water all day long. 4. Other functions: the use of heat pump units is not limited by the location, and they can be placed anywhere, and the floor space is very small, while conventional solar energy needs to occupy a lot of space to achieve the same heating effect, and they must also be placed in the open air; The heat pump unit can produce cold air while producing hot water, which can be used for dehumidification, cooling, air filtration and other auxiliary functions.
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Guangdong GEME Refrigeration Equipment Co., Ltd. Yue ICP Bei No. 19056255
