Installation and Commissioning Guide
Split Ducted Outdoor Units
Installation and Commissioning Guide - Standard Commercial Split Ducted Commercial Outdoor Unit
Doc. No.0525-056
Ver. 7 220308
31
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.
DANGER
No Water into the Electrical Compartments!
Ensure consideration is given to the possibility of water entering the electrical compartments during cleaning of the
condenser coil.
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 fins with fin 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 first then the air inlet side. Allow the solution to stand on the coils for five 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.
