Outdoor unit installation 1. Note: (1) if possible, avoid axial fan of the wind direction in the face perennial prevailing wind direction, so as not to damage the parts. (2) Do not install the unit in the leaves, insects or other contaminants gathering place Xuzhou recycling used central air conditioning, to prevent it from clogging the condenser. (3) In order to ensure defrost water condensate and concentrate discharge, please access the sewer drains. 2, the installation of the outdoor unit should be firmly fixed, and reliable; addition to meeting the requirements of the cooling air circulation space outside the central air conditioning, environmental health protection shall comply with the relevant regulations. 3, the outdoor unit handling, lifting should keep the street vertical tilt required, the tilt angle should be less than 45 °, and pay attention to safety in handling, lifting process. Can not the unit casing. 4, the installation location of the outdoor unit must meet the following requirements: around (1) the installation location and other equipment if a strong heat source vent steam when combustible gas, should promptly contact the designer to be adjusted. (2) Influence of the installation position of the outdoor unit in running noise for the neighbors should be less than the state noise standards, no effect on the discharge of heat to deal with neighbors. (3) The outdoor unit should be installed in a well-ventilated location, if circumstances airflow short circuit, the installation should take measures to solve. (4) The mounting location must have a minimum of maintenance space requirements, ease of future maintenance. Hisense KFR-3601GW air conditioning units turn the outdoor unit does not start the focus should be tested: 1, flow through the outdoor unit 300V power supply is normal; 2, with a multimeter to check the power module switch, if there is a short circuit or open circuit breakdown phenomenon does not work ; 3, whether to issue the compressor start "buzzing" sound, or a greater shock; 4, the DC voltage detection circuit is normal. The figure is the Hisense KFR-3601GW inverter outdoor unit control circuit power supply circuit diagram. Fault detection: Check the outdoor unit control circuit output switching power supply part of the central air-conditioning renovation Xuzhou, each group found no voltage output: measured switch collector and emitter voltage of 300V, work properly; remove the switch, with a multimeter "diode" test file test most found b, e pole (emitter) between an open, concluded that the switch is damaged. Replacement of the same type switch, power test machine Xuzhou central air conditioning installation, troubleshooting. The air conditioner is inverter-type air conditioner, the indoor and outdoor unit has a control circuit. In this case the outdoor unit is not working properly, mostly outside the control circuit, the DC power supply or inverter power module failure Xuzhou central air conditioning repair | Central Air Conditioning | 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!