The air source cold and heat energy unit is a multi-functional air conditioning unit, which has three working conditions of refrigeration, heating and domestic hot water production. It can be automatically switched according to the ambient temperature and hot water demand, which is energy efficient.
The refrigeration system of indoor ice skating rink usually adopts two refrigeration methods: direct expansion and indirect cooling. Direct expansion adopts "Hstars" brand condensing unit; indirect cooling adopts "Hstars" brand screw type low-temperature chiller, Glycol is used as a refrigerant to form ice on the rink.
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