Untes Air Cooled Scroll Chiller TCAETY–TCAESY–TC AEQY 4290

Ensure all fans are turned off before inspection

Do not remove protective grilles

Check for obstructions on the fan grilles

Is the fan grille free from obstructions and filth?

Is additional cleaning required?

Describe any issues found during inspection

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?

Confirm that the oil level is adequate and visible

Describe any issues observed during the inspection

Ensure all necessary personal protective equipment (PPE) is worn

Inspect the area for any obstructions around the coils

Gently brush the fins to avoid damage

Wash the coils with water and detergent

Remove any foreign bodies from the condensing coils

Is it possible to clean the coils effectively?

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 any incrustation or clogging detected?

Select the type of acid to be used for cleaning

Enter the flow rate of the liquid detergent

Perform the first detergent cycle to clean the worst of the dirt.

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 (with unit running at full capacity)

Check the functioning of the maximum and minimum pressure switches

Bleed air from the chilled water system