Untes Air Cooled Scroll Chiller THAETY–THAESY 4200

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 condensing coils?

Remove any foreign bodies from the condensing coils

Wash the coils with water and detergent

Ensure all fans are turned off before inspection

Do not remove the protective grilles

Check for any obstructions on the fan grilles

Inspect for any filth on the fan grilles

Clean any filth found on the grilles

Ensure the unit is switched off

Is the oil level partially covering the sight-glass on the level matching tube?

Switch on the unit and ensure it is in nominal conditions

Is the oil level clearly visible through the sight-glass and flat without ripples?

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 per serial no. plate

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

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

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 absence of 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