Before operating the chiller for the first time, it is necessary to check whether the following items are correct:
1. Check whether the power supply voltage and phase number of the industrial water chiller meet the model specifications. Please refer to the nameplate.
[Note: The power supply for industrial water chillers above 03HP is three-phase and five-wire, with a voltage of 380~415V/50HZ. The phase lines of the power supply are R, S, T, and the neutral line (zero line) is used N. The grounding wire is a two-color wire, denoted by E; The machine is equipped with a phase error and missing protector. When a red light or no light appears and the fault code and alarm signal are displayed during the first startup, you can replace any two phase lines and then close the switch; The refrigerator below 03HP adopts a single-phase power supply with a voltage of 220-240V/50HZ. The phase line of the power supply is L, the neutral line is N, and the ground line is E.]
2. Whether the chilled water pipe and cooling circulating water pipe are connected to the pipeline and keep the valve open;
3. Fill the freezing water tank with water or other freezing media before starting the water pump; (Note: Please use refrigerant according to requirements)
4. Please pay attention to the running direction of the cooling water pump and whether the water tower fan is reversed. If the water pump is three-phase, reverse any two of the power supply phase lines. After connecting them properly, just turn on the switch.
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