What are the maintenance rules of the water chiller manufacturers?

What are the maintenance rules of the water chiller manufacturers?

1. What should be done for the daily maintenance of the FL +5°C ~ +35°C Water Chillers?

① The surface of the unit is clean.

③ Check whether the three-phase voltage of the power supply is normal at 380v.

④ Check whether the oil heater works normally when it is powered on (the oil temperature shall be guaranteed at 25~30 ℃ in standby).

⑤ Check whether there is water and oil leakage in all parts of the body.

⑥ Check whether the temperature control probe is normal.

⑦ Check whether the parameters in the unit operation are within the standard value (see the instructions of the main engine for specific parameters).

⑧ Check whether the action of the energy regulating mechanism is flexible during the operation of the unit (i.e. loading, unloading solenoid valve, slide valve mechanism).

⑨ Check whether the sound is normal during normal operation of the unit.

⑩ Check whether the temperature of the unit is normal during normal operation (including main motor, compressor, exhaust temperature, oil temperature, etc.).

2. What is the primary maintenance of the chiller?

① Carry out the maintenance of the electric control part.

② Measure the insulation resistance of the main motor and check whether it meets the value specified by the unit.

③ Check whether the seal between the main motor and the compressor is normal.

④ Check whether the positioning of each safety protection device meets the specified requirements.

⑤ Check whether the action of the water flow protection switch is normal. If the action fails, repair or replace it in time.

⑥ Check the condition of the insulation layer of the evaporator, and repair or replace the damaged layer in time.

3. How to maintain the water-cooled chiller?

1. Because its cold and heat exchange medium is water, the water is hard, and the water with high hardness has high calcium content, which is easy to produce sediment, so it is better to choose the water with low hardness for the cooling water of chilled water, and distilled water or pure water for the cooling water used in cycles.

2. The compressor is similar to the mechanical structure of the automobile engine, so the engine oil should be replaced on schedule. The water chiller just used should be replaced more frequently.

3. Remove and wash the dust screen and condenser of the water cooler on schedule

4. Check whether the water pipe valve of cooling water system of chilled water system is normal

5. Add refrigerant appropriately according to the high and low pressure and refrigeration conditions of the compressor

6. Record the operation of the chiller once a day. If there is any abnormality, it can be found in time, which will also facilitate the future analysis of data and the development of maintenance strategies.