Shenyang Jin Sheng Mechanical & Electrical Equipment Co., Ltd. specializes dimensional quality professional installation Daikin air-conditioning designated dealership Shenyang Electrical Equipment Co., Ltd. Jin Sheng-dimensional "No matter where you live, whether it is 1/4-mile track, or around half Earth's distance in our lives is the most important thing that people under the eaves. "With the release of Fast and Furious 7, in order not to commemorate the forgotten, we have to look at moving the lines. Original class machinery, technology and also the comfort of your turbocharged, liquid nitrogen accelerated and cityscapes, rivers and lakes of victory, but the gun fire and tanks detonated adrenaline. Speed ??with passion have, the important thing to accompany, accompany ...... no friend to accompany you, really long day and I will meet again when you open up to talk all at this time, right here, the home central air conditioning, you never on my side, and never gives me a good atmosphere. This belief same enthusiasm cumulative change this situation is difficult to love death I know we all prefer the speed and passion no matter which way you choose your home that will lead to a strong return, double your money back we are Family "You do not say goodbye ? "," how can it. "professional quality professional installation Daikin air-conditioning designated dealership Shenyang Sheng-dimensional Electrical Equipment Co., Ltd. Shenyang Jin Sheng-dimensional Electrical Equipment Co., Daikin central air-conditioning designated room dealership new content calculated wind Three points to note "public building energy efficiency design standards" GB50189-2005 design requirements for fresh air made in terms of the provisions of 3.0.2, vrv home central air conditioning, in particular, between 10-30m3 / (hop) of Inter, which has fresh air 30m3 per hour of the first. For indoor fresh air can be controlled by using a new air system operation, fresh air is measured mainly through GB / T18883-2002 reference standards, central air conditioning, standard development department views Shenyang home is the recommended standard "indoor public places fresh air Determination, "the detection method GB / T18204.18, but in the use of GB / T18204.18 process need to pay attention to several aspects, in order to ensure the accuracy of the measurement results. First, the choice of tracer gas, carbon dioxide we believe select the most appropriate, on the grounds that carbon dioxide is a substance involved in the body's metabolism in human exhaled gases, carbon dioxide accounted for 4% to 5%, and also the majority of countries The basic method used. The method of execution GB / T18204.18 choose carbon dioxide as indoor air freshness indicators to calculate the mass balance principle of fresh air. Its basic theory is the concentration of carbon dioxide in the detection space control at 0.1%, and ensure fresh air 30m3 per hour, while the choice of carbon monoxide as a tracer gas is a better choice. Secondly, with regard to the calculation method of the fresh air, the standard GB / T18883 gives the average method and regression method, using the box mode, you can use the differential method, the steady-state method for calculation. In practice, engineering test, home central air-conditioning duct, in accordance with standards, using non-linear regression method is the best choice, be able to accurately determine the value of a new air system. Third, the gas concentration detector to detect the use of sensitivity should be sufficient, in general, should achieve the precise 0.01mg / m3 requirements Shenyang home central air conditioning, home central air conditioning, electrical and mechanical equipment maintenance Jin Sheng Jin Sheng dimension by Shenyang Electrical Equipment Limited. Shenyang Jin Sheng-dimensional Electrical Equipment Co. (www.syjswjd.com) (www.syjswjd.com) strong, credible, in Shenyang, Liaoning province appliance products agent industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jin Sheng-dimensional mechanical and electrical equipment and you hand in hand into the brilliant, for a better future!