Daikin RCS 06F Installation Manual

Daikin RCS 06F Installation Manual Manual pdf 20 page image

20 IM 962-2Maintenance and OperationMaintenance and OperationIMPORTAnTRefrigerant Piping: A qualified Architect or Systems HVACDesign Engineer familiar with refrigerant piping design, aswell as local codes and regulations, must provide refrigerantpiping design. The following manufacturer recommendationsserve as a general guide and should not replace a qualifiedprofessional’s refrigerant piping system design.IMPORTAnTChilled Water Piping: A qualified Architect or Systems HVACDesign Engineer familiar with piping design, local codesand regulations, must provide piping design. The followingmanufacturer recommendations serve as a general guide andshould not replace a qualified professional’s piping systemdesign.• All access panels must be in place when unit is inoperation.• For maximum efficiency, the condenser coil must bekept clean. Periodic inspections, depending on localconditions are recommended. If it is necessary to cleanthe condenser coil, use a common garden hose.• Never operate the unit without filters installed in theair handler.Crankcase HeatersAll units are equipped with crankcase heaters that are factorywired to operate whenever the main power supply to the unitis “ON” and compressors are “OFF”. Before starting theequipment after prolonged shutdown or at the time of initialstart-up, be sure that the circuits to the condensing units areclosed for at least 24 hours.ContactorThe contactor is an electrical switch which operates thecompressor and condenser fans. Relay activates contactorwhen safety circuit is made.High Pressure Switch (HPC)Opens the contactor circuit on high refrigerant pressure -Manual Reset - check for cause of tripping before putting unitback in service.WARnIngDo not wire around the high pressure switch. 15 ton unitcompressors are not provided with internal pressure reliefmeans. Failure to follow this warning can cause an explosionresulting in personal injury or death.Low Pressure Switch (LPC)Acts as safety against loss of refrigerant.Relay (R)Energizes the compressor contactor when safety circuit ismade.Replacement PartsTo find your local Daikin Applied Certified Parts Distributor,go to www.DaikinApplied.com and select Parts Locator.Charge InformationRefer to the appropriate Charging Charts starting on page 21.Wiring DiagramsRefer to the appropriate Wiring Diagrams starting on page 27.TroubleshootingRefer to the troubleshooting chart Table 15 on page 18.