Pioneer WYS050GMHI22M5 User Manual

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CONTENTS

1. IndoorUnitCombination..........................................................................................................................................3

2. DimensionOfOutdoorUnit......................................................................................................................................4

3. RefrigerantCycleDiagram........................................................................................................................................5

4. InstallationDetails....................................................................................................................................................7

5.1Wrenchtorquesheetforinstallation.................................................................................................................7

5.2Connectingthecables........................................................................................................................................7

5.3Pipelengthandtheelevation.............................................................................................................................7

5.4Installationforthefirsttime..............................................................................................................................8

5.5Addingtherefrigerantafterrunningthesystemformanyyears....................................................................12

5.6Procedurewhenservicingtheindoorunitrefrigerationcircuit.......................................................................14

5.7Evacuationafterservicingtheoutdoorunitrefrigerationcircuit....................................................................14

6. ElectronicFunction.................................................................................................................................................15

6.1Abbreviation.....................................................................................................................................................15

6.2Electriccontrolworkingenvironment..............................................................................................................15

6.3MainProtection................................................................................................................................................15

6.4ControlandFunctions......................................................................................................................................17

7. WiringDiagrams.....................................................................................................................................................20

8. Troubleshooting.....................................................................................................................................................24

8.1Safety.................................................................................................................................................................24

8.2IndoorUnitErrorDisplay...................................................................................................................................25

8.3OutdoorUnitDisplay........................................................................................................................................30

8.4DiagnosisandSolution.....................................................................................................................................33

8.5TroubleCriterionOfMainParts.......................................................................................................................74

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Pioneer WYS050GMHI22M5 Air Conditioner

User Manual - Page 2