Untes Air Cooled Scroll Chiller THAET –THAESY 4290

Check power consumption of the unit

Check contactors on the electric panel

Inspect motors and fan blades for cleanliness and abnormal vibrations

Ensure motor cleanliness and check for impurities

Check gas charge and humidity in circuit (unit running at full capacity)

Check the functioning of the maximum and minimum pressure switches

Bleed air from the chilled water system

Clean the unit using a moist cloth

Inspect the general conditions of the unit

Is there any corrosion on the unit framework?

Treat any detected corrosion with protective paint

Ensure all fans are turned off before inspection

Check that the fan grilles are clear from obstructions

Is the performance of the unit satisfactory?

Describe any issues found during inspection

Ensure the compressor is running before inspection

Is the oil level visible through the sight-glass?

Is the oil level within the normal range?

Is there any foam present in the sight-glass?

Is the foam presence prolonged and excessive?

Ensure all necessary equipment is available

Drain and evacuate the circuit to remove non-condensable gases and humidity

Wash the refrigerant system thoroughly

Restoration of Oil and Refrigerant

Enter the exact amount of new oil to be restored as shown on the serial no. plate

Enter the exact amount of refrigerant to be restored as shown on the serial no. plate

Is the refrigerant piped from a cylinder in the liquid phase?