Table of contents
Installer and user reference guide
2
FFA25~60A2VEB(9)
Split system air conditioners
4P550955-4 – 2018.08
Table of contents
1 General safety precautions
3
1.1
About the documentation ..........................................................
3
1.1.1
Meaning of warnings and symbols..............................
3
1.2
For the user ...............................................................................
3
1.3
For the installer..........................................................................
3
1.3.1
General .......................................................................
3
1.3.2
Installation site ............................................................
4
1.3.3
Refrigerant ..................................................................
5
1.3.4
Brine............................................................................
6
1.3.5
Water ..........................................................................
6
1.3.6
Electrical .....................................................................
6
2 About the documentation
7
2.1
About this document..................................................................
7
2.2
Installer and user reference guide at a glance ..........................
7
For the installer
8
3 About the box
8
3.1
Overview: About the box ...........................................................
8
3.2
Indoor unit .................................................................................
8
3.2.1
To unpack and handle the unit....................................
8
3.2.2
To remove the accessories from the indoor unit.........
8
4 About the units and options
9
4.1
Overview: About the units and options......................................
9
4.2
Identification ..............................................................................
9
4.2.1
Identification label: Indoor unit ....................................
9
4.3
About the indoor unit .................................................................
9
4.4
System layout ............................................................................
10
4.5
Combining units and options .....................................................
10
4.5.1
Possible options for the indoor unit............................. 10
5 Preparation
10
5.1
Overview: Preparation ...............................................................
10
5.2
Preparing the installation site ....................................................
10
5.2.1
Installation site requirements of the indoor unit .......... 10
5.3
Preparing refrigerant piping .......................................................
11
5.3.1
Refrigerant piping requirements.................................. 11
5.3.2
Refrigerant piping insulation ....................................... 11
5.4
Preparing electrical wiring .........................................................
11
5.4.1
About preparing electrical wiring................................. 11
6 Installation
12
6.1
Overview: Installation ................................................................
12
6.2
Mounting the indoor unit............................................................
12
6.2.1
Precautions when mounting the indoor unit................ 12
6.2.2
Guidelines when installing the indoor unit................... 12
6.2.3
Guidelines when installing the drain piping................. 13
6.3
Connecting the refrigerant piping ..............................................
15
6.3.1
About connecting the refrigerant piping ...................... 15
6.3.2
Precautions when connecting the refrigerant piping ... 15
6.3.3
Guidelines when connecting the refrigerant piping ..... 15
6.3.4
Pipe bending guidelines.............................................. 15
6.3.5
To flare the pipe end ................................................... 16
6.3.6
To connect the refrigerant piping to the indoor unit .... 16
6.3.7
To check for leaks....................................................... 16
6.4
Connecting the electrical wiring.................................................
16
6.4.1
About connecting the electrical wiring......................... 16
6.4.2
Precautions when connecting the electrical wiring ..... 17
6.4.3
Guidelines when connecting the electrical wiring ....... 17
6.4.4
Specifications of standard wiring components............ 17
6.4.5
To connect the electrical wiring on the indoor unit...... 17
7 Configuration
18
7.1
Field settings .............................................................................. 18
8 Commissioning
19
8.1
Overview: Commissioning .......................................................... 19
8.2
Precautions when commissioning .............................................. 19
8.3
Checklist before commissioning ................................................. 19
8.4
To perform a test run .................................................................. 20
8.5
Error codes when performing a test run ..................................... 21
9 Hand-over to the user
21
10 Disposal
21
11 Technical data
21
11.1
Piping diagram: Indoor unit ........................................................ 21
11.2
Wiring diagram ........................................................................... 22
For the user
23
12 About the system
23
12.1
System layout ............................................................................. 23
12.2
User interface ............................................................................. 23
13 Before operation
23
14 Operation
23
14.1
Operation range ......................................................................... 23
14.2
Operating the system ................................................................. 24
14.2.1
About operating the system ......................................... 24
14.2.2
About cooling, heating, fan only, and automatic
operation ...................................................................... 24
14.2.3
About the heating operation......................................... 24
14.2.4
To operate the system ................................................. 24
14.3
Using the dry program ................................................................ 25
14.3.1
About the dry program ................................................. 25
14.3.2
To use the dry program................................................ 25
14.4
Adjusting the air flow direction.................................................... 25
14.4.1
About the air flow flap .................................................. 25
15 Energy saving and optimum operation
25
16 Maintenance and service
25
16.1
Cleaning the air filter, suction grille, air outlet and outside
panels ........................................................................................ 26
16.1.1
To clean the air filter .................................................... 26
16.1.2
To clean the suction grille ............................................ 26
16.1.3
To clean the air outlet and outside panels ................... 27
16.2
Maintenance after a long stop period ......................................... 27
16.3
Maintenance before a long stop period ...................................... 27
16.4
About the refrigerant................................................................... 27
16.5
After-sales service and warranty ................................................ 28
16.5.1
Warranty period ........................................................... 28
16.5.2
Recommended maintenance and inspection............... 28
16.5.3
Recommended maintenance and inspection cycles.... 28
16.5.4
Shortened maintenance and replacement cycles ........ 28
17 Troubleshooting
28
17.1
Symptoms that are NOT system malfunctions ........................... 29
17.1.1
Symptom: The system does not operate ..................... 29
17.1.2
Symptom: The fan speed does not correspond to the
setting .......................................................................... 29
17.1.3
Symptom: The fan direction does not correspond to
the setting .................................................................... 29
17.1.4
Symptom: White mist comes out of a unit (Indoor
unit) .............................................................................. 29
17.1.5
Symptom: White mist comes out of a unit (Indoor
unit, outdoor unit) ......................................................... 29
17.1.6
Symptom: The user interface display reads "U4" or
"U5" and stops, but then restarts after a few minutes .. 29
17.1.7
Symptom: Noise of air conditioners (Indoor unit)......... 29
17.1.8
Symptom: Noise of air conditioners (Indoor unit,
outdoor unit)................................................................. 30
Summary of Contents for FFA50A2VEB9
Page 31: ......
