Table of contents
Installer and user reference guide
3
FCAG35~140BVEB
Split system air conditioners
4P561448-1B – 2021.07
8 Commissioning 47
8.1 Overview: Commissioning .............................................................................................................................................. 47
8.2 Precautions when commissioning.................................................................................................................................. 47
8.3 Checklist before commissioning..................................................................................................................................... 48
8.4 To perform a test run...................................................................................................................................................... 48
8.5 Error codes when performing a test run........................................................................................................................ 50
9 Hand-over to the user 51
10 Disposal 52
11 Technical data 53
11.1 Piping diagram: Indoor unit ............................................................................................................................................ 53
11.2 Wiring diagram................................................................................................................................................................ 53
11.2.1 Unified wiring diagram legend ....................................................................................................................... 53
For the user 57
12 About the system 58
12.1 System layout.................................................................................................................................................................. 58
12.2 Information requirements for fan coil units................................................................................................................... 59
13 User interface 60
14 Before operation 61
15 Operation 62
15.1 Operation range.............................................................................................................................................................. 62
15.2 Operating the system ..................................................................................................................................................... 63
15.2.1 About operating the system........................................................................................................................... 63
15.2.2 About cooling, heating, fan only, and automatic operation ......................................................................... 64
15.2.3 About the heating operation.......................................................................................................................... 64
15.2.4 To operate the system ................................................................................................................................... 64
15.3 Using the dry program .................................................................................................................................................... 65
15.3.1 About the dry program................................................................................................................................... 65
15.3.2 To use the dry program.................................................................................................................................. 65
15.4 Adjusting the air flow direction ...................................................................................................................................... 65
15.4.1 About the air flow flap.................................................................................................................................... 65
15.5 Active circulation airflow ................................................................................................................................................ 66
15.5.1 To start the active circulation airflow ............................................................................................................ 66
16 Energy saving and optimum operation 68
17 Maintenance and service 69
17.1 Precautions for maintenance and service...................................................................................................................... 69
17.2 Cleaning the air filter, suction grille, air outlet and outside panels............................................................................... 69
17.2.1 To clean the air filter ...................................................................................................................................... 70
17.2.2 To clean the suction grille .............................................................................................................................. 71
17.2.3 To clean the air outlet and outside panels .................................................................................................... 72
17.3 Maintenance after a long stop period............................................................................................................................ 72
17.4 Maintenance before a long stop period......................................................................................................................... 73
17.5 About the refrigerant...................................................................................................................................................... 73
17.6 After-sales service and warranty .................................................................................................................................... 74
17.6.1 Warranty period ............................................................................................................................................. 74
17.6.2 Recommended maintenance and inspection................................................................................................ 74
17.6.3 Recommended maintenance and inspection cycles ..................................................................................... 74
17.6.4 Shortened maintenance and replacement cycles ......................................................................................... 75
18 Troubleshooting 77
18.1 Symptoms that are NOT system malfunctions............................................................................................................... 78
18.1.1 Symptom: The system does not operate....................................................................................................... 78
18.1.2 Symptom: The fan speed does not correspond to the setting...................................................................... 78
18.1.3 Symptom: The fan direction does not correspond to the setting................................................................. 78
18.1.4 Symptom: White mist comes out of a unit (Indoor unit) .............................................................................. 78
18.1.5 Symptom: White mist comes out of a unit (Indoor unit, outdoor unit)........................................................ 78
18.1.6 Symptom: The user interface reads "U4" or "U5" and stops, but then restarts after a few minutes.......... 79
18.1.7 Symptom: Noise of air conditioners (Indoor unit)......................................................................................... 79
18.1.8 Symptom: Noise of air conditioners (Indoor unit, outdoor unit) .................................................................. 79
18.1.9 Symptom: Noise of air conditioners (Outdoor unit)...................................................................................... 79
18.1.10 Symptom: Dust comes out of the unit........................................................................................................... 79
18.1.11 Symptom: The units can give off odours ....................................................................................................... 79
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