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17 | Unit installation

Installer and user reference guide

72

RXYSA4~6A7V/Y1B

VRV 5-S system air conditioner

4P600330-1 – 2020.01

2

1

4

3

1×

PH2

8 mm

Table of Contents

Default Chapter2
- Table of Contents2
1 About the Documentation6
- About this Document6
2 General Safety Precautions7
- About the Documentation7
  - Meaning of Warnings and Symbols7
- For the Installer8
3 Specific Installer Safety Instructions14
- Instructions for Equipment Using R32 Refrigerant17
For the User28
4 User Safety Instructions29
- General29
- Instructions for Safe Operation30
5 About the System32
- System Layout32
6 User Interface33
7 Before Operation34
8 Operation35
- Operation Range35
- Operating the System35
- Using the Dry Program38
- Adjusting the Air Flow Direction40
  - About the Air Flow Flap40
- Setting the Master User Interface41
  - About Setting the Master User Interface41
  - To Designate the Master User Interface41
9 Energy Saving and Optimum Operation42
- Available Main Operation Methods43
- Available Comfort Settings43
10 Maintenance and Service44
- Maintenance after a Long Stop Period44
- Maintenance before a Long Stop Period45
- About the Refrigerant45
- After-Sales Service and Warranty46
11 Troubleshooting49
- Error Codes: Overview51
- Symptoms that Are NOT System Malfunctions53
12 Relocation56
13 Disposal57
14 Technical Data58
- Information Requirements for Eco Design58
For the Installer59
15 About the Box60
- Overview: about the Box60
- Outdoor Unit61
16 About the Units and Options63
- Overview: about the Units and Options63
- Identification64
  - Identification Label: Outdoor Unit64
- About the Outdoor Unit64
- System Layout65
- Combining Units and Options65
17 Unit Installation67
- Preparing the Installation Site67
  - Installation Site Requirements of the Outdoor Unit67
  - Additional Installation Site Requirements of the Outdoor Unit in Cold Climates70
- Opening and Closing the Unit71
- Mounting the Outdoor Unit73
18 Piping Installation77
- Preparing Refrigerant Piping77
- Connecting the Refrigerant Piping81
- Checking the Refrigerant Piping88
19 Charging Refrigerant92
- About Charging Refrigerant92
- About the Refrigerant93
- Precautions When Charging Refrigerant94
- To Determine the Additional Refrigerant Amount96
- To Charge Refrigerant97
- Error Codes When Charging Refrigerant99
- To Fix the Fluorinated Greenhouse Gases Label99
- To Check for Refrigerant Leaks after Charging100
20 Electrical Installation101
- About Connecting the Electrical Wiring101
- To Connect the Electrical Wiring to the Outdoor Unit107
- To Connect the External Outputs110
21 Finishing the Outdoor Unit Installation112
- To Insulate the Refrigerant Piping112
- To Close the Outdoor Unit115
- To Check the Insulation Resistance of the Compressor115
22 Configuration116
- Overview: Configuration116
- Making Field Settings117
- Energy Saving and Optimum Operation129
23 Commissioning135
- Precautions When Commissioning135
- Checklist before Commissioning136
- Checklist During Commissioning137
- About the Test Run137
- To Perform a Test Run (7-Segments Display)137
- Correcting after Abnormal Completion of the Test Run138
24 Hand-Over to the User139
25 Maintenance and Service140
- Overview: Maintenance and Service140
- Maintenance Safety Precautions141
  - To Prevent Electrical Hazards141
- Checklist for Yearly Maintenance of the Outdoor Unit142
- About Service Mode Operation142
  - To Use Vacuum Mode142
  - To Recover Refrigerant143
26 Troubleshooting144
- Overview: Troubleshooting144
- Precautions When Troubleshooting145
- Solving Problems Based on Error Codes145
  - Error Codes: Overview145
- Refrigerant Leak Detection System149
27 Disposal151
28 Technical Data152
- Service Space: Outdoor Unit153
- Piping Diagram: Outdoor Unit155
- Wiring Diagram: Outdoor Unit156
29 Glossary160

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