Xuzhou Sheng Erda Refrigeration Electrical Services Ltd 1) to the connected external drive connector and tighten (fine) Xuzhou central air conditioning maintenance sales, with a special wrench to loosen the valve stem off a circle around (2) outside the machine joint hearing (crude) creak, about 30 seconds, with a sheet hand tighten (crude) connector (3) Release the (crude) tube stop wearing the valve stem (4) to completely release the cutoff valve (fine) Valves pole. This temporal withered vented end (5) Finally, leak detergent Xuzhou hand air conditioning maintenance assignment, carefully observe every joint without bubbles emerge, verify that the system is indeed no leaks, tighten the valve cap insurance, namely Bootable test run (6) such as air conditioning cooling effect is running well, the outlet temperature of the indoor unit does not meet the requirements, consider supplementing the freon refrigerant. (7) the refrigerant charge is completed, the cause of this shift work all over. Step Xuzhou 圣尔达 Refrigeration Electrical Services Ltd. received fluoride: a. Cool Status: The outdoor unit connecting pipe valve cover both air conditioning maintenance shift Xuzhou, open with a wrench. With five of the hex wrench into thin (pressure valve) valve port, the valve closes quickly, after about 20 seconds in the coarse valve (low pressure) shut, and then shut down, power outages. Such a fluorine received outside the machine. This can disassemble. Xuzhou air shift cleaning, air conditioning maintenance, refrigeration provided by Xuzhou Sheng Erda 圣尔达 Refrigeration Electrical Services Limited. Xuzhou 圣尔达 Refrigeration Electrical Services Limited (xzktw.com) strong, credible, in Xuzhou heat exchangers, 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 and you hand into the brilliant, for a better future!