Maintenance and overhaul work content of air-conditioning chillers

What are the maintenance and overhaul work contents of air-conditioning chillers? The air conditioner maintenance manufacturer will tell you:

(1) Contents of maintenance work

1. Maintenance during normal operation (each time)

1) Check the oil pressure and quantity of the compressor refrigerating oil;

2) Leak detection in the system (refrigerant), and promptly deal with any leaks found

3) Check for abnormal sound, vibration and high temperature;

4) Check the temperature and pressure of the condenser and cooler;

5) Check whether various valves are normal

6) Check the temperature and pressure of the water entering and leaving the chiller;

7) Check the wiring terminals on the main circuit and compact them;

8) Check the electrical control part;

9) Check the unit's lubrication system;

10) Check the working status of each instrument and controller;

11) Keep the equipment in a clean state;

2. Maintenance after annual shutdown (once a year)

1) Check and clean the filter-drier. After the desiccant absorbs moisture, it should be dried or replaced;

2) Check and set value of refrigeration equipment protection device;

3) Check the oil pressure and quantity of the compressor refrigerating oil, replace the refrigerating oil and supplement the insulation of the compressor motor if necessary;

4) Check and tighten all wire contacts on the circuit;

5) Check the electrical control part;

6) Provide the above inspection report (once a year)

(2) Shanghai central air-conditioning project tells you the content of maintenance work

Before a maintenance, both the user and the maintenance party will truthfully evaluate the original equipment and system according to the equipment model, operating status (record), operating time limit, and on-site status. If the system needs to be overhauled, the cost will be calculated separately through negotiation between the two parties. . The cost of descaling, cleaning, and maintenance of the condenser shall be calculated and collected separately through negotiation between the two parties.

Overhaul costs beyond the scope of maintenance shall be calculated and collected separately through negotiation between the two parties.