First, the central air-conditioning units installed before the examination and preparation 1, according to the device specification packing list, certificate, inspection records and the necessary assembly drawings and other technical documents, check the model, specifications and all parts, components, materials and special tools subsidiary; Imported equipment must have test file inspection departments. 2, before installation should check the box, and the establishment of acceptance documented. Participants for the user, on behalf of supervision, construction and manufacturers (or distributors) and other parties. 3, after unpacking the unit to carefully check the surface, the host and parts and components, etc. Have the defect and rust, etc; whether the device is filled to keep gas leak, seal is intact; check after unpacking the equipment should take protective measures , premature or any removal to avoid damage to equipment; the equipment has any damage is found, please maintain the status quo, and immediately notify the processing and marketing firms. 4. Check the supply voltage is consistent with the unit voltage, current, it should be able to meet the requirements of the unit. 5, in the concrete foundation reaches curing strength, smooth surface, location, size, elevation, etc. aside after hole and embedded parts meet design requirements before installation. 6, handling and lifting equipment should meet the following requirements: (1) placing the device before installing the application pad to pad sound equipment; equipment should check the weight of the front (2) lifting, lifting tying solid, load-bearing points should the center of gravity is higher than the device; and (3) lifting with a common base unit, which does not cause stress points and deformation distorting the base unit. (4) the turning point of contact parts and equipment sling should be used soft material liner. (5) Note that when you can not make the lifting unit casing. Refrigeration Electrical Services Ltd. Xuzhou Sheng Erda in the "intentions serve" the purpose of making our center after the air-conditioning repair technician, reached a steady job, from worries. Have made our customers and industry peers at home, welcome long-term cooperation, more peace of mind! Service lines: The company has been specializing in air conditioning repair air conditioning repair service, have a professional and efficient air-conditioning installation team Xuzhou air conditioning maintenance and fluoride, regardless of the cold winter or hot summer we have a real commitment to implement six hours after the repair site service, Xuzhou industrial air conditioning repair air conditioning repair at reasonable prices, excellent technical workers, after one year repair warranty. Over the years with a number of enterprises have signed annual maintenance business and establish a good long-term relationship, state 圣尔达 Refrigeration Electrical Services Limited is a regular and reliable Xuzhou integrated air conditioning repair center, specializing in the repair of various household air conditioners and central air conditioning central air conditioning maintenance and reconstruction of Xuzhou, the air conditioning full range of services, services include: air-conditioning maintenance, air entry, air conditioning, cleaning, air conditioning maintenance, air conditioning and refrigerant, recycling second-hand air-conditioning, sale of used air conditioning. Center has a strict management system, first-class quality of service, professional technicians, advanced testing equipment, a good sincere reputation. Years of sharpening created groups of skilled and experienced excellent technicians. They are sincere smile and warm with high quality service to millions of households in Xuzhou! Xuzhou home central air conditioning repair service _ _ Sheng Erda refrigeration provided by Xuzhou 圣尔达 Refrigeration Electrical Services Limited. Xuzhou 圣尔达 Refrigeration Electrical Services Limited (xzktw.com) strong, credible, Xuzhou in Jiangsu Province of heat, refrigeration and air conditioning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Sheng Erda refrigeration into the brilliant and you work for a better future!