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GB 50019-2015 第11.4.2条 Code for Design of Heating, Ventilation and Air Conditioning of Industrial Buildings

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GB 50019-2015 第11.4.2条

| Pumps (chilled water pumps, cooling water pumps, hot water circulation pumps) shall be provided with variable frequency control to automatically adjust speed based on system differential pressure or flow. The hotel air-conditioning water system should adopt a primary-pump variable-flow system; the pump VFD range should be 30-50 Hz, with energy savings of 20%-30%.

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