ActronAir ESP Digital SRD131C Installation And Commissioning Manual

Installation and Commissioning Guide Split Ducted ESP DigitalInstallation and Commissioning Guide - Split Ducted ESP Digital UnitsDoc. No.0525-077 Ver. 2 20012935Annual Maintenance Checklists• Perform general maintenance inspections.• Perform scheduled start-up checks.• Leak test refrigerant circuits.• Inspect contacts of all contactors and relays. Replace all worn contacts as required.• Inspect, clean and tighten all electrical connections.• Check fans for balanced operation. Make sure that there are no loose screws / bolts, no fan blades interferenceand no damage to the fans and guards.• Inspect the air filters, clean or replace as required.• Clean and repaint any corroded panel section.• Ensure no blockage of airflow through variable speed drive.Cleaning the Condenser CoilsClean the coils at least once a year or more frequently if unit is located in a dusty and dirty environment, in order tomaintain your system’s proper operating performance. High discharge pressures are good indication that the coils needcleaning. When using detergent or solvents to clean the coils, follow the manufacturer’s instructions to avoid potentialdamage 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 pressurenozzle.WARNINGDo 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 corrosiondamage to the coils.No Water into the Electrical Compartments!Ensure consideration is given to the possibility of water entering the electrical compartments during cleaning of thecondenser coil.Coil Cleaning ProceduresCoil 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 90o angle to the coils, keeping a minimum nozzle spray angle of 15o, with at least a 1800mmdistance 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.