KStar FocusAir ESM022, Руководство пользователя

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Chapter 6 Operation and Maintenance 51
Foc u sA ir I n - ro w Ai r Con d iti on e r U s er ´s M an u a l
4. Check and tighten the output and input plug interfaces of the control interface board, including the connection
between the display control board and the control interface board, and the connection between the control interface
board and the temperature/humidity sensor board;
5. Check the connection between the user wiring terminal and the control interface board;
6. Check the output connection of the control interface board to each contactor, and the input connection of the
high/low pressure switch, the filter blocking switch (if equipped) and the fan airflow safety switch (if equipped).
Focus on the inspection of plug-in terminals, and replace immediately if loose or poor contact occurs;
7. Replace the control fuse (or air-break switch), control board and other electrical components that have problems;
8. Check the specifications and aging of the control connection or power connection, and replace the connection if
necessary;
9. Check and calibrate the temperature and humidity sensor readings with a temperature and humidity measuring
instrument with a higher level of measurement accuracy; note that the humidity control method should be relative
humidity control during the process of calibrating the humidity sensor reading.
10. Adjust the set point and check the action of each functional component according to the control logic;
11. Simulate and check the working state of protection units such as high/low pressure alarm, high/low temperature
alarm, and high water level alarm.
Warning
1. Before tightening any assembly connections and wiring connections, make sure that the power supply of the
control unit is turned off;
2. Do not use this sensor near flammable liquids or use it to detect flammable liquids.
6.2 Maintenance of Fan Components
Regular inspection items of fan components include: fan motor, impeller, etc. If necessary, please consult
the manufacturer for more details.
6.2.1 Fan impeller
The fan should be checked regularly to see if it is firmly installed with the fan shaft. Rotate the fan impeller to
ensure that it does not rub against the wind deflector.
6.2.2 Motor
Pay attention to the safety when the motor needs to be replaced due to abnormal sound, burnout, etc.
6.2.3 Fan replacement steps
Tools
Phillips PH2 screwdriver, slotted screwdriver (3x75, tip width * cutter bar);
Replacement steps for FS025/30 (300mm wide) series fans: