Table Of Contents - Gree Ultra Heat GMV Multi VRF Heat Pump Series Service Manual

CONTENTS ................................................................................................................................................................ I
PREFACE .................................................................................................................................................................. 1
CHAPTER 1 INTRODUCTION TO BASIC FEATURES OF UNITS ................................................................. 7
1 BASIC OPERATING PRINCIPLE ............................................................................................................... 7
2 INTERNAL PIPING DESIGN OF THE UNITS .......................................................................................... 8
2.1 Piping Diagram of GMV-V72W/A-F(U) 、GMV-V96W/A-F(U) ................................................. 8
2.2 Names and main functions of components .............................................................................. 8
3 BASIC PARAMETERS OF ODU .............................................................................................................. 10
4 ELECTRICAL PARAMETERS .................................................................................................................. 11
4.1 Power Cable Wire Gauge and Circuit Breaker Selection of ODU ...................................... 11
4.2 Circuit Diagram of ODU ................................................................................................................ 11
5 OPTIONAL ACCESSORIES ..................................................................................................................... 12
6 BASIC REQUIREMENT FOR PIPE CONNECTION ............................................................................. 13
7 PRECAUTIONS ON REFRIGERANT LEAKAGE ................................................................................. 14
8 UNIT OPERATING TEMPERATURE ....................................................................................................... 16
CHAPTER 2 INSTALLATION ............................................................................................................................... 18
PART 1 ENGINEERING INSTALLATION PREPARATION ..................................................................... 18
1 INSTALLATION SAFETY .......................................................................................................................... 18
2 IMPORTANCE OF INSTALLATION ENGINEERING ............................................................................ 18
3 COOPERATION BETWEEN DIFFERENT PROFESSIONS ................................................................ 19
3.1 Requirements for Cooperation with Civil Engineering ........................................................ 19
3.2 Requirements for Cooperation with Decoration Engineering ............................................ 20
3.3 Requirements for Cooperation with Electric ........................................................................... 20
4 ONSITE REVIEW OF DESIGN DRAWING ............................................................................................. 22
5 CONSTRUCTION ORGANIZATION PROCESS .................................................................................... 23
PART 2 MATERIAL SELECTIONS ............................................................................................................. 24
1 REQUIREMENT FOR SELECTING CONSTRUCTION MATERIALS ................................................ 24
2 REQUIREMENT FOR SELECTING MAJOR MATERIALS.................................................................. 24
2.1 Copper Pipe ..................................................................................................................................... 24
2.2 Communication Cable and Control Cable ............................................................................... 24
2.3 Power Cable ..................................................................................................................................... 25
2.4 Other Requirements ...................................................................................................................... 25
PART 3 INSTALLATION SPACE REQUIREMENTS ................................................................................ 26
1 PLACE SELECTION FOR INSTALLING ODU ...................................................................................... 26
2 ODU DIMENSIONS AND INSTALLATION HOLE SIZE ....................................................................... 26
3 INSTALLATION SPACE REQUIREMENT FOR ODU ........................................................................... 26
PART 4 REQUIREMENTS ON FOUNDATION INSTALLATION ............................................................ 33
1 ODU FOUNDATION .................................................................................................................................... 33
2 ODU FIXING ................................................................................................................................................. 34
3 VIBRATION REDUCTIONS FOR ODU ................................................................................................... 34
PART 5 PIPING CONNECTION ................................................................................................................... 35
1 SCHEMATIC DIAGRAM OF PIPING CONNECTION ........................................................................... 35
2 SCHEMATIC DIAGRAM OF PIPING SEQUENCE ................................................................................ 35
3 ALLOWABLE PIPE LENGTH AND DROP HEIGHT AMONG IDU AND ODU ................................. 35
4 FITTING PIPE BETWEEN ODU AND THE FIRST MANIFOLD .......................................................... 37
PART 6 PIPE INSTALLATION AND INSULATION ................................................................................... 40
1 PIPE INSTALLATION FOR THE COOLING SYSTEM ......................................................................... 40
1.1 Precautions on Pipe Direction Design...................................................................................... 40
1.2 Processing to Refrigerant Pipes ................................................................................................ 41
1.3 Installation of Refrigerant Pipes ................................................................................................. 42
2 PIPE INSTALLATIONS FOR THE CONDENSATE WATER SYSTEM............................................... 50
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