Haier MRV IV-C (T3) Bruksanvisning

Haier Luftkonditionering MRV IV-C (T3)

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SYJS-10-2016 REV.A Edition: 2016-10

Service Manual

MRV IV-C (T3)

CONTENTS

1. General Information ................................................................................................................................................. 1

1.1 Feature ................................................................................................................................................................1

1.2 Products Lineup ..................................................................................................................................................3

2. Specication ............................................................................................................................................................6

3. Dimension..............................................................................................................................................................34

4. Piping Diagram ......................................................................................................................................................36

5. Wiring Diagram ...................................................................................................................................................... 39

6. Capacity Calculation Due to Capacity Modication Coefcient .............................................................................40

6.1 Capacity compensation value only for cooling .................................................................................................40

6.2 Capacity compensation value only for heating ..................................................................................................45

6.3 Capacity compensation value for cooling and heating ......................................................................................47

7. Operation Range ...................................................................................................................................................48

8. Noise Level ............................................................................................................................................................ 49

9. Installation .............................................................................................................................................................52

9.1 Safety ................................................................................................................................................................52

9.2 Before installation ..............................................................................................................................................57

9.3 Installation location ............................................................................................................................................59

9.4 Unit transport and installation ............................................................................................................................61

9.5 Construction of refrigerant pipe .........................................................................................................................63

9.6 Discharge pipe works ........................................................................................................................................76

10. Branch Pipe Dimensions .....................................................................................................................................81

11. Gather Pipe Dimension ........................................................................................................................................ 83

12. Trial Operation .....................................................................................................................................................84

12.1 Confirmation by electrifying .............................................................................................................................84

12.2 Rated operation ..............................................................................................................................................84

12.3 Trial operation confirmation .............................................................................................................................85

13. Outdoor PCB Photo ............................................................................................................................................. 93

14. Outdoor PCB Dip Switch Setting .........................................................................................................................97

15. Outdoor System Control Function .....................................................................................................................108

15.1 Start control ...................................................................................................................................................108

15.2 Target pressure control ..................................................................................................................................110

15.3 Fan control ................................................................................................................................................... 111

15.4 Pressure protection control ...........................................................................................................................112

15.5 Overheating protection control ......................................................................................................................112

15.6 Current protection control .............................................................................................................................. 113

16. Failure Code ..................................................................................................................................................... 114

17. Troubleshooting .................................................................................................................................................121

APPENDIX Sensor Resistance Table ...................................................................................................................... 171