Daikin FCAHG71HVEB - For the User

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For the user

Installer and user reference guide

FCAHG71~140HVEB

Split system air conditioners

4P561449-1B – 2021.07

For the user

Main Page

Table of Contents2
General Safety Precautions5
About the Documentation5
Meaning of Warnings and Symbols5
For the User6
For the Installer7
General7
Installation Site8
Refrigerant - in Case of R410A or R3211
Brine13
Water13
Electrical14
About the Documentation16
About this Document16
For the Installer17
About the Box18
Overview: about the Box18
Indoor Unit18
To Unpack and Handle the Unit18
To Remove the Accessories from the Indoor Unit19
About the Units and Options20
Overview: about the Units and Options20
Identification20
Identification Label: Indoor Unit20
About the Indoor Unit20
System Layout21
Combining Units and Options22
Possible Options for the Indoor Unit22
Preparation23
Overview: Preparation23
Preparing the Installation Site23
Installation Site Requirements of the Indoor Unit23
Preparing Refrigerant Piping25
Refrigerant Piping Requirements25
Refrigerant Piping Insulation26
Preparing Electrical Wiring26
About Preparing Electrical Wiring26
Installation28
Overview: Installation28
Mounting the Indoor Unit28
Precautions When Mounting the Indoor Unit28
Guidelines When Installing the Indoor Unit29
Guidelines When Installing the Drain Piping31
Connecting the Refrigerant Piping34
About Connecting the Refrigerant Piping34
Precautions When Connecting the Refrigerant Piping35
Guidelines When Connecting the Refrigerant Piping36
Pipe Bending Guidelines36
To Flare the Pipe End36
To Connect the Refrigerant Piping to the Indoor Unit37
Connecting the Electrical Wiring38
About Connecting the Electrical Wiring38
Precautions When Connecting the Electrical Wiring38
Guidelines When Connecting the Electrical Wiring39
Specifications of Standard Wiring Components39
To Connect the Electrical Wiring to the Indoor Unit40
Configuration43
Field Setting43
Commissioning46
Overview: Commissioning46
Precautions When Commissioning46
Checklist before Commissioning47
To Perform a Test Run47
Error Codes When Performing a Test Run49
Hand-Over to the User50
Disposal51
Technical Data52
Piping Diagram: Indoor Unit52
Wiring Diagram52
Unified Wiring Diagram Legend52
For the User56
About the System57
System Layout57
Information Requirements for Fan Coil Units58
User Interface59
Before Operation60
Operation61
Operation Range61
Operating the System61
About Operating the System61
About Cooling, Heating, Fan Only, and Automatic Operation61
About the Heating Operation62
To Operate the System62
Using the Dry Program63
About the Dry Program63
To Use the Dry Program63
Adjusting the Air Flow Direction63
About the Air Flow Flap63
Active Circulation Airflow64
To Start the Active Circulation Airflow64
Energy Saving and Optimum Operation66
Maintenance and Service67
Precautions for Maintenance and Service67
Cleaning the Air Filter, Suction Grille, Air Outlet and Outside Panels67
To Clean the Air Filter68
To Clean the Suction Grille69
To Clean the Air Outlet and Outside Panels70
Maintenance after a Long Stop Period70
Maintenance before a Long Stop Period71
About the Refrigerant71
After-Sales Service and Warranty72
Warranty Period72
Recommended Maintenance and Inspection72
Recommended Maintenance and Inspection Cycles72
Shortened Maintenance and Replacement Cycles73
Troubleshooting75
Symptoms that Are NOT System Malfunctions76
Symptom: the System Does Not Operate76
Symptom: the Fan Speed Does Not Correspond to the Setting76
Symptom: the Fan Direction Does Not Correspond to the Setting76
Symptom: White Mist Comes out of a Unit (Indoor Unit)76
Symptom: White Mist Comes out of a Unit (Indoor Unit, Outdoor Unit)76
Symptom: the User Interface Reads "U4" or "U5" and Stops, but then Restarts after a few Minutes77
Symptom: Noise of Air Conditioners (Indoor Unit)77
Symptom: Noise of Air Conditioners (Indoor Unit, Outdoor Unit)77
Symptom: Noise of Air Conditioners (Outdoor Unit)77
Symptom: Dust Comes out of the Unit77
Symptom: the Units Can Give off Odours77
Symptom: the Outdoor Unit Fan Does Not Spin77
Symptom: the Display Shows "8877
Symptom: the Compressor in the Outdoor Unit Does Not Stop after a Short Heating Operation78
Relocation79
Disposal80
Glossary81

Daikin FCAHG71HVEB - For the User

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