Daikin FXFA20A2VEB User Manual

Daikin FXFA20A2VEB

88 pages

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Installer and user reference guide

VRV system air conditioner

FXFA20A2VEB

FXFA25A2VEB

FXFA32A2VEB

FXFA40A2VEB

FXFA50A2VEB

FXFA63A2VEB

FXFA80A2VEB

FXFA100A2VEB

FXFA125A2VEB

Table of Contents

Default Chapter2
- Table of Contents2
1 About the Documentation4
- About this Document4
2 General Safety Precautions5
- About the Documentation5
  - Meaning of Warnings and Symbols5
- For the Installer6
3 Specific Installer Safety Instructions16
For the User19
4 User Safety Instructions20
- General20
- Instructions for Safe Operation21
5 About the System26
- System Layout26
- Information Requirements for Fan Coil Units27
6 User Interface28
7 Before Operation29
8 Operation30
- Operation Range30
- About Operation Modes30
- To Operate the System32
9 Energy Saving and Optimum Operation33
10 Maintenance and Service34
- Precautions for Maintenance and Service34
- Cleaning the Air Filter, Suction Grille, Air Outlet and Outside Panels35
- Maintenance before a Long Stop Period38
- Maintenance after a Long Stop Period38
- About the Refrigerant38
  - About the Refrigerant Leakage Sensor39
11 Troubleshooting41
- Symptoms that Are NOT System Malfunctions42
12 Relocation44
For the Installer46
14 About the Box47
- Overview: about the Box47
- Indoor Unit47
  - To Unpack and Handle the Unit47
  - To Remove the Accessories from the Indoor Unit48
15 About the Units and Options49
- Identification49
  - Identification Label: Indoor Unit49
- About the Indoor Unit49
- System Layout49
- Combining Units and Options50
  - Possible Options for the Indoor Unit50
16 Unit Installation52
- Preparing the Installation Site52
  - Installation Site Requirements of the Indoor Unit52
- Mounting the Indoor Unit54
  - Guidelines When Installing the Indoor Unit54
  - Guidelines When Installing the Drain Piping57
17 Piping Installation61
- Preparing Refrigerant Piping61
  - Refrigerant Piping Requirements61
  - Refrigerant Piping Insulation62
- Connecting the Refrigerant Piping62
18 Electrical Installation67
- About Connecting the Electrical Wiring67
- To Connect the Electrical Wiring to the Indoor Unit70
19 Commissioning72
- Overview: Commissioning72
- Precautions When Commissioning72
- Checklist before Commissioning73
- To Perform a Test Run73
20 Configuration74
- Field Setting74
21 Hand-Over to the User78
22 Troubleshooting79
- Solving Problems Based on Error Codes79
  - Error Codes: Overview79
23 Disposal81
24 Technical Data82
- Wiring Diagram82
  - Unified Wiring Diagram Legend82
25 Glossary85

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Installation And Operation Manual24 pages

Questions and Answers:

J
Jacqueline SuttonAug 9, 2025
Why is my Daikin FXFA20A2VEB not cooling or heating properly?
- C
  Caleb OnealAug 9, 2025
  If your Daikin Air Conditioner system isn't cooling or heating sufficiently, first ensure that neither the indoor nor outdoor unit's air inlets or outlets are blocked; clear any obstructions to allow free airflow. Also, verify that the air filter is clean, adjust the temperature and fan speed settings on the user interface, and close any open doors or windows. During cooling, reduce the number of occupants if possible, minimize heat sources, block direct sunlight with curtains or blinds, and ensure the airflow angle is correctly set.

Daikin FXFA20A2VEB Specifications

General

Brand	Daikin
Model	FXFA20A2VEB
Category	Air Conditioner
Language	English

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