Untes Air Cooled Scroll Chiller THAETY–THAESY 4160

Ensure the compressor is running before inspection

Record the oil level in the sight-glass

Is the oil level visible through the sight-glass?

Is there a prolonged and excessive presence of foam during operation?

Is the oil level within the normal range?

Describe any issues observed during the inspection

Wear suitable personal protective equipment (PPE)

Measure the pressure-drop between the inlet and outlet pipes using a differential pressure gauge

Is the pressure-drop within the specified range?

Is there incrustation or clogging detected?

Select the acid to be used for cleaning

Enter the flow rate of the liquid detergent

Ensure all fans are turned off before inspection

Check that the fan grilles are clear from obstructions

Are all fan grilles free from obstructions and filth?

Describe any issues found during inspection

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?

Ensure all personal protective equipment is worn

Inspect the area for any obstructions around the coils

Gently brush the fins to avoid damage

Are there any foreign bodies blocking the coils?

Wash the coils with water and detergent if necessary

Is it possible to clean the coils completely?