Daikin RXYSA5A7Y1B User Manual

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Installer and user reference guide

VRV 5-S system air conditioner

RXYSA4A7V1B

RXYSA5A7V1B

RXYSA6A7V1B

RXYSA4A7Y1B

RXYSA5A7Y1B

RXYSA6A7Y1B

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

Other manuals for Daikin RXYSA5A7Y1B

Installation And Operation Manual48 pages

Installer And User Guide164 pages

Questions and Answers:

A
Andre Dillon MDAug 15, 2025
Why is my Daikin RXYSA5A7Y1B Air Conditioner system operating but cooling or heating is insufficient?
- W
  William SmithAug 16, 2025
  There could be several reasons why your Daikin Air Conditioner isn't cooling or heating sufficiently: * The air inlet or outlet of the outdoor or indoor unit might be blocked. Ensure there are no obstacles and that air can flow freely. * The air filter might be clogged. Please, refer to the "Maintenance" in the indoor unit manual. * The temperature setting may be incorrect. Adjust it as needed. * The fan speed setting may be set too low. Adjust the fan speed on your user interface. * Doors or windows might be open, letting wind in. Close them. * There might be too many occupants in the room, or an excessive heat source. * Direct sunlight might be entering the room. Use curtains or blinds. * The airflow angle might not be proper. Adjust it accordingly.
B
Bailey StanleyAug 18, 2025
What to do if Daikin RXYSA5A7Y1B system does not operate at all?
- A
  Alexandria SweeneyAug 18, 2025
  If your Daikin Air Conditioner system isn't operating at all: * Check for a power failure and wait until power is restored. Note that if a power failure occurs during operation, the system automatically restarts immediately after power is restored. * Check if a fuse has blown or a breaker is activated. Replace the fuse or reset the breaker if necessary.
R
Robert MurphyAug 22, 2025
Why is my Daikin RXYSA5A7Y1B system operating, but the cooling or heating is insufficient?
- L
  Laura BaldwinAug 22, 2025
  There are several reasons why your Daikin air conditioning system might be running but not cooling or heating effectively. Here are some things you can check: * Make sure that the air inlet or outlet of the outdoor or indoor unit is not blocked by obstacles. Remove any obstructions to ensure free airflow. * Ensure the air filter is not clogged. * Verify the temperature setting. * Check the fan speed setting on your user interface. * Close any open doors or windows to prevent drafts. * Reduce the number of occupants in the room during cooling operation, if possible. * Minimize heat sources in the room. * Use curtains or blinds to block direct sunlight. * Adjust the airflow angle to ensure proper circulation.
A
Ashlee SummersAug 25, 2025
What to do if a refrigerant leak occurs in Daikin RXYSA5A7Y1B Air Conditioner (error code / )?
- P
  Pamela JacksonAug 26, 2025
  If a refrigerant leak occurs in your Daikin Air Conditioner (error code / ), actions will be taken by the system. Do NOT turn OFF the power supply. Notify your installer and report the malfunction code.
X
xharrisAug 28, 2025
What to do if a safety device frequently actuates in Daikin RXYSA5A7Y1B?
- C
  Crystal DayAug 28, 2025
  If a safety device such as a fuse, a breaker, or an earth leakage breaker frequently actuates, or if the ON/OFF switch does NOT properly work, turn OFF the main power switch.
J
Juan MendozaAug 31, 2025
What to do if a refrigerant leak occurs (error code / ) in my Daikin RXYSA5A7Y1B?
- S
  Stacey ChapmanAug 31, 2025
  Notify your installer and report the malfunction code.
C
christophercollinsSep 2, 2025
What to do if Daikin RXYSA5A7Y1B goes into fan only operation and stops when heating or cooling is on?
- J
  John GloverSep 2, 2025
  If your Daikin Air Conditioner goes into fan only operation, but stops as soon as it goes into heating or cooling operation: * Check if the air inlet or outlet of the outdoor or indoor unit is blocked by obstacles. Remove any obstacles to ensure free airflow. * Check if the user interface display shows on the home screen. Refer to the installation and operation manual delivered with the indoor unit.
N
nthomasSep 5, 2025
What to do if Daikin RXYSA5A7Y1B user interface display indicates the unit number, the operation lamp flashes and the malfunction code appears?
- J
  Jennifer WoodSep 5, 2025
  If the user interface display indicates the unit number, the operation lamp flashes, and a malfunction code appears, notify your installer and report the malfunction code.
A
Amber KelleySep 9, 2025
What to do if my Daikin RXYSA5A7Y1B Air Conditioner system does not operate at all?
- M
  munozmichelleSep 9, 2025
  If your Daikin air conditioning system isn't operating, there are a couple of things you can check: * First, make sure there isn't a power failure. Wait for the power to be restored. * Second, check if a fuse has blown or a breaker has tripped. If so, replace the fuse or reset the breaker.
E
evansandrewSep 12, 2025
What to do if the user interface display of my Daikin RXYSA5A7Y1B Air Conditioner indicates a unit number, the operation lamp flashes and a malfunction code appears?
- S
  Stephanie ReyesSep 12, 2025
  Notify your installer and report the malfunction code.

Daikin RXYSA5A7Y1B Specifications

General

Brand	Daikin
Model	RXYSA5A7Y1B
Category	Air Conditioner
Language	English

Summary

2 General safety precautions

2.1 Meaning of warnings and symbols

Explanation of danger, warning, caution, and notice symbols used in the manual.

2.2 For the installer

General guidelines and advice for authorized installers.

2.2.2 Installation site

Requirements for selecting a suitable and safe installation location for the unit.

2.2.6 Electrical

3 Specific installer safety instructions

3.1 Instructions for equipment using R32 refrigerant

Safety guidelines specific to R32 refrigerant handling and equipment.

3.1.3 To determine the charge limitations

Method to determine maximum refrigerant charge based on room area.

4 User safety instructions

4.1 General

4.2 Instructions for safe operation

17 Unit installation

17.1 Preparing the installation site

17.3 Mounting the outdoor unit

18 Piping installation

18.1 Preparing refrigerant piping

18.2 Connecting the refrigerant piping

18.3 Checking the refrigerant piping

19 Charging refrigerant

19.3 Precautions when charging refrigerant

Essential safety measures and precautions before charging refrigerant.

19.4 To determine the additional refrigerant amount

Formula and method to calculate the necessary additional refrigerant charge.

19.5 To charge refrigerant

Step-by-step guide for pre-charging and manually charging refrigerant.

20 Electrical installation

20.1 About connecting the electrical wiring

20.1.6 Safety device requirements

20.2 To connect the electrical wiring to the outdoor unit

22 Configuration

22.2 Making field settings

22.3 Energy saving and optimum operation

23 Commissioning

23.1 Precautions when commissioning

Essential safety precautions to follow during commissioning and test operations.

23.2 Checklist before commissioning

A comprehensive checklist to verify before starting the commissioning process.

23.5 To perform a test run (7-segments display)

25 Maintenance and service

25.2 Maintenance safety precautions

Critical safety measures to follow during maintenance and servicing.

26 Troubleshooting

26.2 Precautions when troubleshooting

Essential safety precautions to follow before and during troubleshooting.

26.3 Solving problems based on error codes

26.4 Refrigerant leak detection system

How the refrigerant leak detection system operates and warnings.

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