Daikin FDMRN20AV1K Installation Manual

17EnglishINDICATOR LIGHTSFault DiagnosisIf there is any abnormal condition detected, controller will blink the error code.NOTEThe unit will not detect sensor missing when the compressor is ON.Call your dealer immediately when this error happen.There are many ways of charging liquid in a “controlled manner” into the suctionside:-Use valve A on the manifold gauge setUse the valve on the refrigerant cylinderCharge through a Shredder valveUse a hose with a Shredder valve depressorCharge into the suction side at some distance from the compressorAll of the above1.2.3.4.5.6.A2. Charging procedures – Three phase compressorsThe fundamental procedure is the same as for single phase models but the compressor can run in the wrong direction onstarting. If this happens reverse any two phases and start again. Short term reverse rotation will not damage the compressor.All Specter compressors have internal discharge temperature protectors which are very effective in preventing dangerouslyhigh discharge temperatures during charging. The protection module will trip and lock the compressor out for 30 minutes. Itis not normally necessary to wait 30 minutes for the module to reset. When the compressor has cooled down the module canbe reset by breaking the power supply to the control circuit. Very often the serviceman does not understand why the moduletripped and uses a jumper wire to bypass it. He continues to charge the system and removes the jumper when charging iscomplete. The compressor may or may not run with the protector back in the circuit but it is certain that the compressor hasbeen damaged and premature failure is inevitable.Event Error Code1. Room Sensor Open or Short Blink E12. Indoor Coil Sensor Open Blink E23. Outdoor Coil Sensor Open Blink E34.Compressor Overload /Indoor Coil Sensor Short /Outdoor Coil Sensor ShortBlink E45. Outdoor Abnormal Blink E56. Water Pump Fault Blink E67. Outdoor Coil Sensor Exist (MS model) Blink E78. Hardware Error (tact switch pin short) Blink E8! CAUTIONManifold Gauge will show cylinder pressure rather than suction pressure if the cylinder valve and Manifold valve “A”are both open.•