Panasonic R410A Service Manual

Also see for R410A: Installation instructions Service manual Installation instructions Installation instructions

Contents

Panasonic R410A Service Manual Manual pdf 172 page image

5-5955-5. Symptom: Thermostat in OFF continues or cycles OFF & ON too frequently1-1Adjust settingtemperature1-2YesNoConnect correctly1-3YesNo1Check if the sensors are connected correctly.Are all connection made properly?Room temp. (TA) in yellow, heat exchanger (E1) in red,heat exchanger (E2) in black, heat exchanger (E3) in brown,air outlet (BL) in green1-2Indoor controlPC boardHow to detect abnormalityError DiagnosisAbnormality does not occur. Protective function can be checked when the outdoor maintenance remote controller isconnected.•1.2.Setting temperature reaches the level set ON thermostat.Setting temperature is too low in heating mode and too highin cooling and dry mode.2DISP (display mode) is applied.With a thermostat OFF in heating mode, wind speed(item code 05) is out of range 0 - 6. (Use Simple SettingFunction on standard timer remote controller.)1-31-41-5 DEMAND is applied.OutdoorcontrolPC board3 Controlequipment4 SystemTurn OFF(OPEN)1-4YesNoChoose one of 0 to 61-5YesNoTurn OFF(OPEN)2-1YesNo2-1Outdoor unit and protective function of a system are operating.(Connect outdoor maintenance remote controller to RC socketon outdoor unit main control PC board and check alarmmessages.)See operational status2-2YesNo2-2Discharge temperature is over 80°C in stop mode and does notdecrease. (Connect outdoor maintenance remote controller toRC socket on outdoor unit main control PC board and checkalarm messages.)Replace dischargetemperature sensor2-3YesNo2-3Demand value always stays low. (The value is lower than 70.Excluding -1 (unlimited))(Connect outdoor maintenance remotecontroller to RC socket on outdoor unit main control PC boardand check alarm messages.)Increase values(over 702-4YesNo2-4 DEMAND is applied. Turn OFF(OPEN)3-1YesNo3-1 Demand setting is made by control units (P-AIMS, Seri-Para I/Ounit for outdoor unit, Seri-Para I/O each indoor unit.)Turn OFF4-1YesNo4-1When operating in cooling (including auto cooling & heating)and dry mode, lowest temp. of indoor E1, E2 and E3 sensor isless than 2°C (under anti-freeze control).Wait until more than2°C reaches4-2YesNo4-2 During defrosting operationWait for a few minutesto 10 minutes or so4-3YesNo4-3 Outdoor unit PC board failure → ReplacementAccording to a type of model, the indoor sensors will not be supplied in some cases.According to a type of model, the outdoor DEMAND will not be supplied in some cases.When LINE Checker is used, the temperature sensors can be observed (display, record) simultaneously.According to some areas, some of the models are unreleased.