Maintenance of Central Air Conditioning Host
Remove the dust on the surface of the unit, and add antirust oil to the metal surface; Check whether the anchor bolt is loose and whether the unit has abnormal vibration and noise and deal with it immediately; Use Freon electronic leak detector to detect whether there is Freon leakage in the unit. In case of leakage, immediately repair and stop. Check whether the oil level and oil pressure are normal. If the oil level is low, replenish the refrigeration oil immediately.
Maintenance of indoor unit of central air conditioner
Clean the return air filter, clean the fins of the heat exchanger, clean the centrifugal wind wheel, refuel, maintain and replace the bearing; Check whether the air volume and air outlet temperature of the fan coil unit are normal, and clean the dust at the air outlet and air return outlet.
Maintenance of central air conditioning chiller
Check whether the lubricating oil in the oil tank of the water pump oil cup is normal and whether the bearing is worn. If there is any problem, replace the lubricating oil or bearing in time; Check whether the shaft seal of the water pump leaks, whether it operates normally, whether the foot bolt is loose, and whether the gate valve at the inlet and outlet of the check valve leaks; Check whether the cooling tower works normally, whether the connecting bolts and engine anchor bolts are loose and rusted, and whether the pipelines and automatic electric valves are faulty.
Maintenance of electrical control components
Check whether the installation of various temperature sensors, pressure sensor controllers, water flow controllers, thermometers and pressure gauges is loose. Immediately deal with problems found; First, cut off the power supply, clean the dust inside and outside the electric control cabinet, check whether the components, wires and threads of the electric control cabinet are loose or abnormally hot, and deal with the problems immediately if found.