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GB 50736-2012 第7.5.2条 Code for Design of Heating, Ventilation and Air Conditioning of Civil Buildings

Air conditioning暖通空调

GB 50736-2012 第7.5.2条

| The air-conditioning water system shall adopt a closed circulation, and the supply-return water temperature difference shall not be less than 5℃ (a 7℃/12℃ temperature difference is recommended for hotel buildings); when the water pump is adjusted by variable frequency, the flow variation range should be 50%~100%, and the pump efficiency shall not be lower than 70%.

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