Cold supply is an element of the air cooling system. The cooling supply is supplied from both chillers and freon systems, outdoor units. Refrigeration can be supplied by supply air units, 2-tube fan coils, cassette air conditioners, 4-tube radiators, indoor convectors, cooling beams for clean rooms. Below is an example (schematic diagram) of one chiller machine and its refrigeration supply to one supply air unit. The air conditioner strapping units are available on both two-way and three-way equipment, that is, quantitative and quantitative-qualitative regulation.
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