ActronAir CRV290T, Руководство по установке и пусконаладке

Страница: 51 / 56

Installation and Commissioning Guide
Variable Capacity Commercial
51
Installation and Commissioning Guide - Split Ducted Variable Capacity Commercial Outdoor Unit
Doc. No.0525-066 Ver. 6 221012
Cleaning the Condenser Coils
Clean the coils at least once a year or more frequently if unit is located in a dusty and dirty environment, in order to
maintain your system’s proper operating performance. High discharge pressures are good indication that the coils need
cleaning. When using detergent or solvents to clean the coils, follow the manufacturer’s instructions to avoid potential
damage to the coils and to the unit.
To clean the refrigerant coils, use a soft brush and water spray, such as garden hose or pressure washer with low pressure
nozzle.
WARNING
Do Not Use High Alkaline Detergent!
When using detergent for coil cleaning, ensure that the alkaline level is no higher than 8.5, which can cause corrosion
damage to the coils.
No Water into the Drive!
Ensure consideration is given to the possibility of water entering the electrical compartments during cleaning of the
condenser coil.
Coil Cleaning Procedures Coil Cleaning Procedures
• Disconnect power to the unit.
• Remove the louvered panels from the unit to gain access to the air inlet side of the coils.
• Use a soft brush to remove loose dirt and debris from both sides of the coils.
• Straighten bent coil fi ns with fi n comb.
• Prepare the detergent solutions according to the manufacturer’s instructions.
• Spray solution at a 90
o angle to the coils, keeping a minimum nozzle spray angle of 15°, with at least a 1800mm
distance from the coils and 600 psi pressure.
• Spray leaving air side of the coils fi rst then the air inlet side. Allow the solution to stand on the coils for fi ve minutes.
• Rinse both sides of the coils with cool clean water.
• Inspect the coils, if they are still dirty, repeat the cleaning procedure.
• Clean and wipe dry the outer and inner sides of the unit, the refrigerating parts and other components.
• Ensure that the condensate drain lines are not blocked.
• Reinstall all unit panels, covers and guards.
• Restore electrical power to the unit.