1. The air-cooled chiller unit should be turned on to see if the fan's steering is correct. If the forward rotation can be turned on, the reverse rotation will indicate that the power supply wiring is reversed, and the phase sequence must be replaced before starting.
2. The set values ​​of the various protection devices of the unit have been set up by the factory, and users should not arbitrarily change them.
3. When the unit has a fault alarm and stops, first press the stop button of the unit (the alarm light will go out), and then check the cause of the fault. It must not be forced to start before the fault is eliminated.
4. If it is not an emergency, the unit should not be shut down by cutting off the main power supply; if the unit is stopped for a long time in winter, turn off the unit first, then turn off the main power supply, and drain the water in the system.
5, to keep the machine room clean and well ventilated, regular cleaning and removal of the condenser to ensure normal and stable operation of the unit.
6. The water-cooled chiller should keep the heat-dissipating water tower clean, keep the air circulation around the water tower, and keep the temperature low to prevent debris from entering the cooling tower to reduce heat dissipation efficiency.
7. Air-cooled chiller should keep the surface of the chiller cooling coil clean, ensure the surrounding air circulation, low temperature, and regularly clean the scale on the coil to ensure good heat transfer.
In addition, it is necessary to ensure that the air-conditioner can operate normally after starting. It must be ensured that the condenser has good heat dissipation. Otherwise, the condensing temperature and the corresponding condensing pressure will be too high, so that the high-pressure protection device of the chiller will stop and even cause malfunction. The cold water in the evaporator should be circulated, otherwise the cold water temperature will be low, causing the cold water temperature protection device to stop and stop, or because the evaporation temperature and the corresponding evaporation pressure are too low, the low-pressure protection device of the chiller will stop and even cause The cold water in the evaporator freezes and damages the equipment.