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 Xuzhou air conditioning maintenance, equipment should take protective measures, or any premature 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, after the concrete foundation reaches curing strength, smooth surface conditioning repair, location, size, elevation, reserved holes and embedded parts are in line with the 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. You have not had the remote control does not start? You can check the remote control, using the remote control at the ordinary radio, press any key on the remote control, radio has reflected, indicating the remote control is normal, the fault in the indoor machine control panel or the remote receiver. Open the indoor unit cover and check the 220-volt and 12-volt input power and 5 volts are normal, start a manual air-conditioning, air conditioning can start functioning normally, indicating that the control board is no problem, fault location on the remote control receiver components, and remote cause is not accepted. After which requires professional maintenance personnel will be cut off 103 capacitor directly or replace the display panel, the air conditioner has been operating normally. The cause of many of the remote control signal is not received, in addition to the capacitor leakage, but no member Weld also cause does not receive, in addition to air-conditioned environment of the remote control receiving a great impact, when humidity is high, condensate in the remote display panel back welding feet and legs condensation point Xuzhou industrial air conditioning repair, circuit board mold, insulation performance, resulting in leakage between the pad remote control does not boot or remote control malfunction, clean circuit boards, with a hair dryer treatment, in a remote display panel back welding layer of glass, plastic, remote control can be received normally. Central air conditioning maintenance and reconstruction of Xuzhou, Sheng Erda refrigeration (certified), air-conditioning maintenance provided by Xuzhou 圣尔达 Refrigeration Electrical Services Limited. Xuzhou Sheng Erda Refrigeration Electrical Services Limited (xzktw.com) is in Xuzhou, Jiangsu, heat, refrigeration and air conditioning equipment leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. In Sheng Erda refrigeration leadership with the staff warmly welcome all inquiries negotiations to create a better future for refrigeration Sheng Erda.