Comprehensive understanding of central air-conditioning maintenance knowledge

Air-conditioning maintenance company tells you 3 major categories of central air-conditioning maintenance

1 Checking maintenance

●Based on equipment operating conditions and customer needs, various routine inspections are carried out in a planned manner

●Guide the owner’s operator on site to explain practical technologies related to unit operation and maintenance

●Provide all kinds of necessary value-added services

●Provide professional opinions and improvement plans on the problems existing in the operation of the main engine and auxiliary equipment

2 Preventive maintenance

●Content provided by inspection maintenance

● Carry out necessary preventive maintenance according to the manufacturer’s recommendation

●Preventive maintenance includes: cleaning the copper tube of the heat exchanger, analyzing and replacing the refrigerating machine oil, oil filter element, filter drier, etc.

3 Comprehensive maintenance

●Comprehensive maintenance plan: including all routine inspections, value-added services and emergency troubleshooting services

●In the event of equipment failure, responsible for all maintenance work and replacement of parts.

●Emergency maintenance: According to customer needs, we provide customers with emergency maintenance services throughout the day. The developed service network and high-quality service staff ensure rapid troubleshooting and short downtime.

Shanghai central air-conditioning project tells you the maintenance content of central air-conditioning system

Air conditioner main unit

⑴Check whether the high pressure and low pressure of the refrigerant in the refrigeration system of the air conditioning host are normal

⑵Check whether the refrigerant leaks in the refrigeration system of the air-conditioning host; whether it is necessary to supplement the refrigerant

⑶Check whether the compressor operating current is normal

⑷Check whether the compressor running sound is normal

⑸Check whether the working voltage of the compressor is normal

⑹Check the compressor oil level, whether the color is normal

⑺ Check whether the compressor oil pressure and oil temperature are normal

⑻Check whether the phase sequence protector of the air-conditioning host is normal and whether there is a lack of phase

⑼Check whether the wiring terminals of the air conditioner host are loose

⑽Check whether the water flow protection switch is working properly

⑾Check whether the resistance value of the computer board and the temperature probe is normal

⑿ Check whether the air switch of the air conditioner host is normal; whether the AC contactor and thermal protector are in good condition