Purchasing a set of three-generation equipment can realize indoor cooling, heating and hot water for bathing.

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Getting hot water for bathing for free in the air-conditioning refrigeration mode is actually partly (above the ℃ condensation temperature) by increasing the condensation temperature. In exchange for large compressor energy consumption.
Conclusion
The concept of purchasing a set of triple-generation equipment for heat pump triple-generation system is novel. The so-called hot water for bathing can be heated for free when the air-conditioning mode is running. Purchasing a set of triple-generation equipment can realize indoor cooling, heating and hot water for bathing. It can reduce part of the initial investment but the operating costs are the same as those of air conditioners plus air source heat pump water heaters.
The general operation of the trigeneration system is to first ensure that the bathing hot water temperature is cooled in summer. If the bathing hot water temperature and the indoor temperature do not reach the shutdown temperature, the domestic hot water heat exchanger serves as the condenser of the air conditioner and the bathing water temperature is below ℃. (because the outdoor temperature (condensing temperature) is higher than the water tank temperature in summer) the cooling mode is energy-saving. The hot water for bathing generally needs to rise to ℃ or even higher before it stops running. When operating at a temperature above ℃ ~ ℃, the refrigeration operation is not energy-saving.
Considering the potential danger (due to the domestic hot water corroding the heat exchanger and causing the entire system to paralyze), it is better to completely separate the air-source heat pump air conditioning part from the domestic hot water inside the unit. The fan can be used as a whole so that the system can interact with each other. Does not interfere with work stability