Table of contents
Installer and user reference guide
3
FCAHG71~140HVEB
Split system air conditioners
4P561449-1B – 2021.07
8 Commissioning 46
8.1 Overview: Commissioning .............................................................................................................................................. 46
8.2 Precautions when commissioning.................................................................................................................................. 46
8.3 Checklist before commissioning..................................................................................................................................... 47
8.4 To perform a test run...................................................................................................................................................... 47
8.5 Error codes when performing a test run........................................................................................................................ 49
9 Hand-over to the user 50
10 Disposal 51
11 Technical data 52
11.1 Piping diagram: Indoor unit ............................................................................................................................................ 52
11.2 Wiring diagram................................................................................................................................................................ 52
11.2.1 Unified wiring diagram legend ....................................................................................................................... 52
For the user 56
12 About the system 57
12.1 System layout.................................................................................................................................................................. 57
12.2 Information requirements for fan coil units................................................................................................................... 58
13 User interface 59
14 Before operation 60
15 Operation 61
15.1 Operation range.............................................................................................................................................................. 61
15.2 Operating the system ..................................................................................................................................................... 61
15.2.1 About operating the system........................................................................................................................... 61
15.2.2 About cooling, heating, fan only, and automatic operation ......................................................................... 61
15.2.3 About the heating operation.......................................................................................................................... 62
15.2.4 To operate the system ................................................................................................................................... 62
15.3 Using the dry program .................................................................................................................................................... 63
15.3.1 About the dry program................................................................................................................................... 63
15.3.2 To use the dry program.................................................................................................................................. 63
15.4 Adjusting the air flow direction ...................................................................................................................................... 63
15.4.1 About the air flow flap.................................................................................................................................... 63
15.5 Active circulation airflow ................................................................................................................................................ 64
15.5.1 To start the active circulation airflow ............................................................................................................ 64
16 Energy saving and optimum operation 66
17 Maintenance and service 67
17.1 Precautions for maintenance and service...................................................................................................................... 67
17.2 Cleaning the air filter, suction grille, air outlet and outside panels............................................................................... 67
17.2.1 To clean the air filter ...................................................................................................................................... 68
17.2.2 To clean the suction grille .............................................................................................................................. 69
17.2.3 To clean the air outlet and outside panels .................................................................................................... 70
17.3 Maintenance after a long stop period............................................................................................................................ 70
17.4 Maintenance before a long stop period......................................................................................................................... 71
17.5 About the refrigerant...................................................................................................................................................... 71
17.6 After-sales service and warranty .................................................................................................................................... 72
17.6.1 Warranty period ............................................................................................................................................. 72
17.6.2 Recommended maintenance and inspection................................................................................................ 72
17.6.3 Recommended maintenance and inspection cycles ..................................................................................... 72
17.6.4 Shortened maintenance and replacement cycles ......................................................................................... 73
18 Troubleshooting 75
18.1 Symptoms that are NOT system malfunctions............................................................................................................... 76
18.1.1 Symptom: The system does not operate....................................................................................................... 76
18.1.2 Symptom: The fan speed does not correspond to the setting...................................................................... 76
18.1.3 Symptom: The fan direction does not correspond to the setting................................................................. 76
18.1.4 Symptom: White mist comes out of a unit (Indoor unit) .............................................................................. 76
18.1.5 Symptom: White mist comes out of a unit (Indoor unit, outdoor unit)........................................................ 76
18.1.6 Symptom: The user interface reads "U4" or "U5" and stops, but then restarts after a few minutes.......... 77
18.1.7 Symptom: Noise of air conditioners (Indoor unit)......................................................................................... 77
18.1.8 Symptom: Noise of air conditioners (Indoor unit, outdoor unit) .................................................................. 77
18.1.9 Symptom: Noise of air conditioners (Outdoor unit)...................................................................................... 77
18.1.10 Symptom: Dust comes out of the unit........................................................................................................... 77
18.1.11 Symptom: The units can give off odours ....................................................................................................... 77
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