Hot-water air conditioner and control method

Abstract

The invention relates to an air-conditioner and the control method, more exactly, a hot water air-conditioner and the control method, which belongs to the technical field of air-conditioning technologies and is for the purpose to provide a solution to the problem of unbalance configuration of air-conditioning refrigerant; wherein the control method is to switch among different working states of the hot water air-conditioner by adjusting working refrigerant amount between the internal / external heat exchange units and the water-cooling condenser; the hot water air-conditioner comprises internal / external heat exchange units, a water-cooling condenser and a compressor, wherein a solenoid valve is provided between the water-cooling condenser and the high-voltage output pipeline of the compressor, or a solenoid valve is provided between the low-voltage input tube of the compressor and the water-cooling condenser, or a hot water changeover valve is provided between the high-voltage output pipeline of the compressor and the water-cooling condenser, or an electronic expansion valve is provided between the internal / external heat exchange units. The air-conditioner and the control method has the advantages of balanced and reasonable configuration of refrigerant, striking energy-saving result, long service life for the complete machine and low production cost.

Description

technical field [0001] The invention relates to a hot water air conditioner, in particular to a method for controlling the hot water air conditioner. Background technique [0002] The current air conditioners all discharge the heat generated by indoor cooling to the outside, resulting in double waste of energy expenditure. Although there are many hot water air conditioner patent applications similar to the present invention, such as patent numbers: 200510046533.4, 200520091547.3, in practical application, it is felt that when the water in the water tank has not been heated, the refrigerant in the entire system will be concentrated in the water condenser , resulting in low cooling and heating efficiency. If the water in the water tank is not used after being heated, and the cooling air needs to be continued, the refrigerant in the entire system will be concentrated in the internal and external heat exchanger units of the air conditioner. At this time, only cooling air or sing...

AI Technical Summary

Problems solved by technology

[0002] The current air conditioners discharge the heat generated by indoor cooling to the outside, resulting in double waste of energy expenditure

Although there are many hot water air conditioner patent applications similar to the present invention, such as patent numbers: 200510046533.4, 200520091547.3, in practical application, it is felt that when the water in the water tank has not been heated, the refrigerant in the entire system will be concentrated in the water condenser , resulting in low cooling and heating efficiency. If the water in the water tank is not used after being heated, and the cooling air needs to be continued, the refrigerant in the entire system will be concentrated in the internal and external heat exchanger units of the air conditioner. At this time, only cooling air or single system When the warm air is working, there will be too much refrigerant in the internal and external heat exchanger units, and the working efficiency will be greatly reduced. In severe cases, liquid shock reaction will occur and the compressor will be damaged; if the refrigerant charge of the entire system is reduced, the hot water air conditioner will When cooling / hot water or heat pump heating water level is working, there will be insufficient refrigerant, and the compressor will be short of oil and shorten the service life.

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