Daikin FAA71BUV1B, FAA100BUV1B Installer reference guide

Installer and user reference guide
Split system air conditioner
FAA71BUV1B FAA100BUV1B
Table of contents
Table of contents
1 About the documentation 5
1.1 About this document ...................................................................................................................................................... 5
1.2 Meaning of warnings and symbols................................................................................................................................. 6
2 General safety precautions 8
2.1 For the installer............................................................................................................................................................... 8
2.1.1 General ........................................................................................................................................................... 8
2.1.2 Installation site ............................................................................................................................................... 9
2.1.3 Refrigerant — in case of R410A or R32.......................................................................................................... 12
2.1.4 Electrical ......................................................................................................................................................... 13
3 Specific installer safety instructions 16
For the user 18
4 User safety instructions 19
4.1 General............................................................................................................................................................................ 19
4.2 Instructions for safe operation ....................................................................................................................................... 20
5 About the system 25
5.1 System layout.................................................................................................................................................................. 25
6 User interface 27
7 Before operation 28
8 Operation 29
8.1 Operation range.............................................................................................................................................................. 29
8.2 About operation modes.................................................................................................................................................. 30
8.2.1 Basic operation modes ................................................................................................................................... 30
8.2.2 Special heating operation modes................................................................................................................... 31
8.2.3 Airflow direction ............................................................................................................................................. 31
8.3 To operate the system.................................................................................................................................................... 32
9 Energy saving and optimum operation 33
10 Maintenance and service 34
10.1 Precautions for maintenance and service ...................................................................................................................... 34
10.2 Cleaning the unit ............................................................................................................................................................. 35
10.2.1 To clean the air outlet and exterior ............................................................................................................... 35
10.2.2 To clean the front panel................................................................................................................................. 35
10.2.3 To clean the air filter ...................................................................................................................................... 36
10.3 Maintenance before a long stop period......................................................................................................................... 37
10.4 Maintenance after a long stop period............................................................................................................................ 37
10.5 About the refrigerant...................................................................................................................................................... 38
11 Troubleshooting 39
11.1 Symptoms that are NOT system malfunctions............................................................................................................... 40
11.1.1 Symptom: The system does not operate....................................................................................................... 40
11.1.2 Symptom: The fan speed does not correspond to the setting...................................................................... 40
11.1.3 Symptom: The fan direction does not correspond to the setting................................................................. 40
11.1.4 Symptom: White mist comes out of a unit (Indoor unit) .............................................................................. 41
11.1.5 Symptom: White mist comes out of a unit (Indoor unit, outdoor unit)........................................................ 41
11.1.6 Symptom: The user interface reads "U4" or "U5" and stops, but then restarts after a few minutes.......... 41
11.1.7 Symptom: Noise of air conditioners (Indoor unit)......................................................................................... 41
11.1.8 Symptom: Noise of air conditioners (Indoor unit, outdoor unit).................................................................. 41
11.1.9 Symptom: Dust comes out of the unit........................................................................................................... 41
11.1.10 Symptom: The units can give off odours ....................................................................................................... 41
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12 Relocation 42
13 Disposal 43
For the installer 44
14 About the box 45
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4P654517-1 – 2021.03
Table of contents
14.1 Overview: About the box ................................................................................................................................................ 45
14.2 Indoor unit ...................................................................................................................................................................... 45
14.2.1 To unpack and handle the unit ...................................................................................................................... 45
14.2.2 To remove the accessories from the indoor unit .......................................................................................... 46
15 About the units and options 47
15.1 Identification ................................................................................................................................................................... 47
15.1.1 Identification label: Indoor unit ..................................................................................................................... 47
15.2 About the indoor unit ..................................................................................................................................................... 47
15.3 System layout .................................................................................................................................................................. 48
15.4 Combining units and options .......................................................................................................................................... 49
15.4.1 Possible options for the indoor unit............................................................................................................... 49
16 Unit installation 50
16.1 Preparing the installation site......................................................................................................................................... 50
16.1.1 Installation site requirements of the indoor unit .......................................................................................... 50
16.2 Opening and closing the unit .......................................................................................................................................... 52
16.2.1 To remove the front panel............................................................................................................................. 52
16.2.2 To re-install the front panel ........................................................................................................................... 52
16.2.3 To remove the front grille.............................................................................................................................. 52
16.2.4 To re-install the front grille ............................................................................................................................ 53
16.2.5 To open the service cover.............................................................................................................................. 54
16.2.6 To close the service cover.............................................................................................................................. 54
16.3 Mounting the indoor unit ............................................................................................................................................... 54
16.3.1 To install the mounting plate......................................................................................................................... 54
16.3.2 To drill a wall hole........................................................................................................................................... 56
16.3.3 To remove the pipe port cover ...................................................................................................................... 57
16.3.4 To hook the unit on the mounting plate........................................................................................................ 58
16.3.5 To pass the pipes through the wall hole........................................................................................................ 58
16.3.6 To provide drainage........................................................................................................................................ 59
17 Piping installation 62
17.1 Preparing refrigerant piping ........................................................................................................................................... 62
17.1.1 Refrigerant piping requirements.................................................................................................................... 62
17.1.2 Refrigerant piping insulation.......................................................................................................................... 63
17.2 Connecting the refrigerant piping .................................................................................................................................. 63
17.2.1 About connecting the refrigerant piping....................................................................................................... 63
17.2.2 Precautions when connecting the refrigerant piping.................................................................................... 63
17.2.3 Guidelines when connecting the refrigerant piping...................................................................................... 64
17.2.4 Pipe bending guidelines ................................................................................................................................. 65
17.2.5 To flare the pipe end...................................................................................................................................... 65
17.2.6 To connect the refrigerant piping to the indoor unit.................................................................................... 66
18 Electrical installation 67
18.1 About connecting the electrical wiring .......................................................................................................................... 67
18.1.1 Precautions when connecting the electrical wiring....................................................................................... 67
18.1.2 Guidelines when connecting the electrical wiring......................................................................................... 68
18.1.3 Specifications of standard wiring components.............................................................................................. 69
18.2 To connect the electrical wiring to the indoor unit ....................................................................................................... 69
19 Finishing the indoor unit installation 73
19.1 To fix the unit on the mounting plate ............................................................................................................................ 73
20 Commissioning 74
20.1 Overview: Commissioning .............................................................................................................................................. 74
20.2 Precautions when commissioning .................................................................................................................................. 74
20.3 Checklist before commissioning ..................................................................................................................................... 74
20.4 To perform a test run...................................................................................................................................................... 75
21 Configuration 76
21.1 Field setting ..................................................................................................................................................................... 76
FAA71+100BUV1B Split system air conditioner 4P654517-1 – 2021.03
22 Hand-over to the user 80
23 Troubleshooting 81
23.1 Solving problems based on error codes ......................................................................................................................... 81
23.1.1 Error codes: Overview.................................................................................................................................... 81
24 Disposal 82
25 Technical data 83
25.1 Wiring diagram................................................................................................................................................................ 83
25.1.1 Unified wiring diagram legend....................................................................................................................... 83
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Table of contents
26 Glossary 86
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1 About the documentation

1.1 About this document

Target audience
Authorised installers + end users
INFORMATION
This appliance is intended to be used by expert or trained users in shops, in light industry, and on farms, or for commercial and household use by lay persons.
WARNING
Make sure installation, servicing, maintenance, repair and applied materials follow the instructions from Daikin and, in addition, comply with applicable legislation and are performed by qualified persons only. In Europe and areas where IEC standards apply, EN/IEC 60335-2-40 is the applicable standard.
Documentation set
1 | About the documentation
This document is part of a documentation set. The complete set consists of:
General safety precautions:
- Safety instructions that you must read before installing
- Format: Paper (in the box of the indoor unit)
Indoor unit installation and operation manual:
- Installation and operation instructions
- Format: Paper (in the box of the indoor unit)
Installer and user reference guide:
- Preparation of the installation, good practices, reference data,…
- Detailed step-by-step instructions and background information for basic and
advanced usage
- Format: Digital files on http://www.daikineurope.com/support-and-manuals/
product-information/
Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer.
The original documentation is written in English. All other languages are translations.
Technical engineering data
FAA71+100BUV1B Split system air conditioner 4P654517-1 – 2021.03
A subset of the latest technical data is available on the regional Daikin website
(publicly accessible).
The full set of latest technical data is available on the Daikin Business Portal
(authentication required).
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1 | About the documentation

1.2 Meaning of warnings and symbols

DANGER
Indicates a situation that results in death or serious injury.
DANGER: RISK OF ELECTROCUTION
Indicates a situation that could result in electrocution.
DANGER: RISK OF BURNING/SCALDING
Indicates a situation that could result in burning/scalding because of extreme hot or cold temperatures.
DANGER: RISK OF EXPLOSION
Indicates a situation that could result in explosion.
WARNING
Indicates a situation that could result in death or serious injury.
WARNING: FLAMMABLE MATERIAL
CAUTION
Indicates a situation that could result in minor or moderate injury.
NOTICE
Indicates a situation that could result in equipment or property damage.
INFORMATION
Indicates useful tips or additional information.
Symbols used on the unit:
Symbol Explanation
Before installation, read the installation and operation manual, and the wiring instruction sheet.
Before performing maintenance and service tasks, read the service manual.
For more information, see the installer and user reference guide.
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The unit contains rotating parts. Be careful when servicing or inspecting the unit.
Symbols used in the documentation:
Symbol Explanation
Indicates a figure title or a reference to it.
Example: " 1–3 Figure title" means "Figure 3 in chapter 1".
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1 | About the documentation
Symbol Explanation
Indicates a table title or a reference to it.
Example: " 1–3 Table title" means "Table 3 in chapter 1".
FAA71+100BUV1B Split system air conditioner 4P654517-1 – 2021.03
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2 | General safety precautions

2 General safety precautions

2.1 For the installer

2.1.1 General

If you are NOT sure how to install or operate the unit, contact your dealer.
DANGER: RISK OF BURNING/SCALDING
Do NOT touch the refrigerant piping, water piping or internal parts during and
immediately after operation. It could be too hot or too cold. Give it time to return to normal temperature. If you MUST touch it, wear protective gloves.
Do NOT touch any accidental leaking refrigerant.
WARNING
Improper installation or attachment of equipment or accessories could result in electrical shock, short-circuit, leaks, fire or other damage to the equipment. ONLY use accessories, optional equipment and spare parts made or approved by Daikin.
WARNING
Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation).
CAUTION
Wear adequate personal protective equipment (protective gloves, safety glasses,…) when installing, maintaining or servicing the system.
WARNING
Tear apart and throw away plastic packaging bags so that nobody, especially children, can play with them. Possible risk: suffocation.
WARNING
Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire.
CAUTION
Do NOT touch the air inlet or aluminium fins of the unit.
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CAUTION
Do NOT place any objects or equipment on top of the unit.Do NOT sit, climb or stand on the unit.
In accordance with the applicable legislation, it might be necessary to provide a logbook with the product containing at least: information on maintenance, repair work, results of tests, stand-by periods,…
Also, at least, following information MUST be provided at an accessible place at the product:
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2.1.2 Installation site

2 | General safety precautions
Instructions for shutting down the system in case of an emergency
Name and address of fire department, police and hospital
Name, address and day and night telephone numbers for obtaining service
In Europe, EN378 provides the necessary guidance for this logbook.
Provide sufficient space around the unit for servicing and air circulation.
Make sure the installation site withstands the weight and vibration of the unit.
Make sure the area is well ventilated. Do NOT block any ventilation openings.
Make sure the unit is level.
Do NOT install the unit in the following places:
In potentially explosive atmospheres.
In places where there is machinery that emits electromagnetic waves.
Electromagnetic waves may disturb the control system, and cause malfunction of the equipment.
In places where there is a risk of fire due to the leakage of flammable gases
(example: thinner or gasoline), carbon fibre, ignitable dust.
In places where corrosive gas (example: sulphurous acid gas) is produced.
Corrosion of copper pipes or soldered parts may cause the refrigerant to leak.
Instructions for equipment using R32 refrigerant
WARNING
Do NOT pierce or burn.Do NOT use means to accelerate the defrosting process or to clean the
equipment, other than those recommended by the manufacturer.
Be aware that R32 refrigerant does NOT contain an odour.
WARNING
The appliance shall be stored so as to prevent mechanical damage and in a well­ventilated room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater) and have a room size as specified below.
WARNING
Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation and are executed ONLY by authorised persons.
FAA71+100BUV1B Split system air conditioner 4P654517-1 – 2021.03
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2 | General safety precautions
WARNING
If one or more rooms are connected to the unit using a duct system, make sure:
there are no operating ignition sources (example: open flames, an operating gas
appliance or an operating electric heater) in case the floor area is less than the minimum floor area A (m²).
no auxiliary devices, which may be a potential ignition source, are installed in the
duct work (example: hot surfaces with a temperature exceeding 700°C and electric switching device);
only auxiliary devices approved by the manufacturer are used in the duct work;air inlet AND outlet are connected directly to the same room by ducting. Do NOT
use spaces such as a false ceiling as a duct for the air inlet or outlet.
NOTICE
Precautions shall be taken to avoid excessive vibration or pulsation to
refrigeration piping.
Protection devices, piping and fittings shall be protected as far as possible against
adverse environmental effects.
Provision shall be made for expansion and contraction of long runs of piping.Piping in refrigerating systems shall be designed and installed such as to minimise
the likelihood of hydraulic shock damaging the system.
The indoor equipment and pipes shall be securely mounted and guarded such
that accidental rupture of equipment or pipes cannot occur from events such as moving furniture or reconstruction activities.
CAUTION
Do NOT use potential sources of ignition in searching for or detection of refrigerant leaks.
NOTICE
Do NOT re-use joints and copper gaskets which have been used already.Joints made in installation between parts of refrigerant system shall be accessible
for maintenance purposes.
Installation space requirements
WARNING
This appliance contains R32 refrigerant. For the minimum floor area of the room in which the appliance is stored refer to installation and operation manual of the outdoor unit.
NOTICE
Pipework shall be protected from physical damage.Installation of pipework shall be kept to a minimum.
To determine the minimum floor area
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1 Determine the total refrigerant charge in the system (= factory refrigerant
charge + additional refrigerant amount charged).
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2 | General safety precautions
Contains fluorinated greenhouse gases
2
1
1
1
2
2
kg
tCO2eq
1000
GWP × kg
=
=
+
kg
=
kg
=
GWP: xxx
R32
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
420
430
440
450
460
470
480
490
500
510
520
530
540
550
560
570
580
590
600
610
620
630
640
650
660
670
680
690
700
710
720
730
740
750
760
770
1.843
9.55
2.21.8
2.4 2.8 3.2 3.6 4 4.4 4.8 5.2 5.6 6 6.4 6.8 7.2 7.6 8 8.4 8.8 9.22
2.6 3 3.4 3.8 4.2
4.6
5 5.4 5.8 6.2 6.6 7 7.4 7.8 8.2 8.6 9 9.4
Floor-standing unit
(c)
Wall-mounted unit
(b)
Ceiling-mounted unit
(a)
m [kg]
A
min
[m
2
]
Ceiling-mounted
unit
(a)
4.6 13.4
4.6 180
4.8 14.6
4.8 196
5.0 15.8
5.0 213
≤1.842
5.2 17.1
≤1.842
5.2 230
1.843 3.64
5.4 18.5
1.843 28.9
5.4 248
2.0 3.95
5.6 19.9
2.0 34.0
5.6 267
2.2 4.34
5.8 21.3
2.2 41.2
5.8 286
2.4 4.74
6.0 22.8
2.4 49.0
6.0 306
2.6 5.13
6.2 24.3
2.6 57.5
6.2 327
2.8 5.53
6.4 25.9
2.8 66.7
6.4 349
3.0 5.92
6.6 27.6
3.0 76.6
6.6 371
3.2 6.48
6.8 29.3
3.2 87.2
6.8 394
3.4 7.32
7.0 31.0
3.4 98.4
7.0 417
3.6 8.20
7.2 32.8
3.6 110
7.2 441
3.8 9.14
7.4 34.7
3.8 123
7.4 466
4.0 10.1
7.6 36.6
4.0 136
7.6 492
4.2 11.2
7.8 38.5
4.2 150
7.8 518
4.4 12.3
4.4 165
m (kg)
A
min
(m2)
4.6 20.0
4.8 21.8
5.0 23.6
≤1.842
5.2 25.6
1.843 4.45
5.4 27.6
2.0 4.83
5.6 29.7
2.2 5.31
5.8 31.8
2.4 5.79
6.0 34.0
2.6 6.39
6.2 36.4
2.8 7.41
6.4 38.7
3.0 8.51
6.6 41.2
3.2 9.68
6.8 43.7
3.4 10.9
7.0 46.3
3.6 12.3
7.2 49.0
3.8 13.7
7.4 51.8
4.0 15.1
7.6 54.6
4.2 16.7
7.8 57.5
4.4 18.3
8 40.5
8.2 42.6
8.4 44.7
8.6 46.8
8.8 49.0 9 51.3
9.2 53.6
9.4 55.9
9.55 57.7
8 60.5
8.2 63.6
8.4 66.7
8.6 69.9
8.8 73.2 9 76.6
9.2 80.0
9.4 83.6
9.55 86.2
8 545
8.2 572
8.4 601
8.6 629
8.8 659 9 689
9.2 720
9.4 752
9.55 776
Wall-mounted
unit
(b)
m (kg)
A
min
(m2)
Floor-standing
unit
(c)
m (kg)
A
min
(m2)
2 Determine which graph or table to use.
For indoor units: Is the unit ceiling-mounted, wall-mounted or floor-
standing?
For outdoor units installed or stored indoors, this depends on the installation
height:
If the installation height is… Then use the graph or table for…
<1.8m Floor-standing units
1.8≤x<2.2m Wall-mounted units
≥2.2m Ceiling-mounted units
3 Use the graph or table to determine the minimum floor area.
FAA71+100BUV1B Split system air conditioner 4P654517-1 – 2021.03
m Total refrigerant charge in the system
A
Minimum floor area
min
(a) Ceiling-mounted unit (= Ceiling-mounted unit) (b) Wall-mounted unit (= Wall-mounted unit) (c) Floor-standing unit (= Floor-standing unit)
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2 | General safety precautions

2.1.3 Refrigerant — in case of R410A or R32

If applicable. See the installation manual or installer reference guide of your application for more information.
NOTICE
Make sure refrigerant piping installation complies with applicable legislation. In Europe, EN378 is the applicable standard.
NOTICE
Make sure the field piping and connections are NOT subjected to stress.
WARNING
During tests, NEVER pressurize the product with a pressure higher than the maximum allowable pressure (as indicated on the nameplate of the unit).
WARNING
Take sufficient precautions in case of refrigerant leakage. If refrigerant gas leaks, ventilate the area immediately. Possible risks:
Excessive refrigerant concentrations in a closed room can lead to oxygen
deficiency.
Toxic gas might be produced if refrigerant gas comes into contact with fire.
DANGER: RISK OF EXPLOSION
Pump down – Refrigerant leakage. If you want to pump down the system, and there
is a leak in the refrigerant circuit:
Do NOT use the unit's automatic pump down function, with which you can collect
all refrigerant from the system into the outdoor unit. Possible consequence: Self­combustion and explosion of the compressor because of air going into the operating compressor.
Use a separate recovery system so that the unit's compressor does NOT have to
operate.
WARNING
ALWAYS recover the refrigerant. Do NOT release them directly into the environment. Use a vacuum pump to evacuate the installation.
NOTICE
After all the piping has been connected, make sure there is no gas leak. Use nitrogen to perform a gas leak detection.
NOTICE
To avoid compressor breakdown, do NOT charge more than the specified amount
of refrigerant.
When the refrigerant system is to be opened, refrigerant MUST be treated
according to the applicable legislation.
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2 | General safety precautions
WARNING
Make sure there is no oxygen in the system. Refrigerant may only be charged after performing the leak test and the vacuum drying.
Possible consequence: Self-combustion and explosion of the compressor because of oxygen going into the operating compressor.
In case recharge is required, see the nameplate of the unit. It states the type of
refrigerant and necessary amount.
The unit is factory charged with refrigerant and depending on pipe sizes and pipe
lengths some systems require additional charging of refrigerant.
Only use tools exclusively for the refrigerant type used in the system, this to
ensure pressure resistance and prevent foreign materials from entering into the system.
Charge the liquid refrigerant as follows:
If Then
A siphon tube is present
Charge with the cylinder upright.
(i.e., the cylinder is marked with "Liquid filling siphon attached")
A siphon tube is NOT present Charge with the cylinder upside down.
Open refrigerant cylinders slowly.
Charge the refrigerant in liquid form. Adding it in gas form may prevent normal
operation.
CAUTION
When the refrigerant charging procedure is done or when pausing, close the valve of the refrigerant tank immediately. If the valve is NOT closed immediately, remaining pressure might charge additional refrigerant. Possible consequence: Incorrect refrigerant amount.

2.1.4 Electrical

FAA71+100BUV1B Split system air conditioner 4P654517-1 – 2021.03
DANGER: RISK OF ELECTROCUTION
Turn OFF all power supply before removing the switch box cover, connecting
electrical wiring or touching electrical parts.
Disconnect the power supply for more than 10minutes, and measure the voltage
at the terminals of main circuit capacitors or electrical components before servicing. The voltage MUST be less than 50VDC before you can touch electrical components. For the location of the terminals, see the wiring diagram.
Do NOT touch electrical components with wet hands.Do NOT leave the unit unattended when the service cover is removed.
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2 | General safety precautions
WARNING
If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage categoryIII condition, MUST be installed in the fixed wiring.
WARNING
ONLY use copper wires.Make sure the field wiring complies with the applicable legislation.All field wiring MUST be performed in accordance with the wiring diagram
supplied with the product.
NEVER squeeze bundled cables and make sure they do NOT come in contact with
the piping and sharp edges. Make sure no external pressure is applied to the terminal connections.
Make sure to install earth wiring. Do NOT earth the unit to a utility pipe, surge
absorber, or telephone earth. Incomplete earth may cause electrical shock.
Make sure to use a dedicated power circuit. NEVER use a power supply shared by
another appliance.
Make sure to install the required fuses or circuit breakers.Make sure to install an earth leakage protector. Failure to do so may cause
electrical shock or fire.
When installing the earth leakage protector, make sure it is compatible with the
inverter (resistant to high frequency electric noise) to avoid unnecessary opening of the earth leakage protector.
CAUTION
When connecting the power supply: connect the earth cable first, before making
the current-carrying connections.
When disconnecting the power supply: disconnect the current-carrying cables
first, before separating the earth connection.
The length of the conductors between the power supply stress relief and the
terminal block itself MUST be as such that the current-carrying wires are tautened before the earth wire is in case the power supply is pulled loose from the stress relief.
NOTICE
Precautions when laying power wiring:
Do NOT connect wiring of different thicknesses to the power terminal block (slack
in the power wiring may cause abnormal heat).
When connecting wiring which is the same thickness, do as shown in the figure
above.
For wiring, use the designated power wire and connect firmly, then secure to
prevent outside pressure being exerted on the terminal board.
Use an appropriate screwdriver for tightening the terminal screws. A screwdriver
with a small head will damage the head and make proper tightening impossible.
Over-tightening the terminal screws may break them.
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2 | General safety precautions
Install power cables at least 1 m away from televisions or radios to prevent interference. Depending on the radio waves, a distance of 1 m may not be sufficient.
WARNING
After finishing the electrical work, confirm that each electrical component and
terminal inside the electrical components box is connected securely.
Make sure all covers are closed before starting up the unit.
NOTICE
Only applicable if the power supply is three‑phase, and the compressor has an ON/ OFF starting method.
If there exists the possibility of reversed phase after a momentary black out and the power goes on and off while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase can break the compressor and other parts.
FAA71+100BUV1B Split system air conditioner 4P654517-1 – 2021.03
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3 | Specific installer safety instructions

3 Specific installer safety instructions

Always observe the following safety instructions and regulations.
General
WARNING
Make sure installation, servicing, maintenance, repair and applied materials follow the instructions from Daikin and, in addition, comply with applicable legislation and are performed by qualified persons only. In Europe and areas where IEC standards apply, EN/IEC 60335-2-40 is the applicable standard.
Unit installation (see
"16Unit installation"[450]
WARNING
The appliance using R32 refrigerant shall be stored so as to prevent mechanical damage and in a well-ventilated room without continuously operating ignition sources (e.g. open flames, an operating gas appliance, or an operating electric heater). The room size shall be as specified in the General safety precaution.
CAUTION
For walls containing a metal frame or a metal board, use a wall embedded pipe and wall cover in the feed-through hole to prevent possible heat, electrical shock, or fire.
Refrigerant piping installation (see
CAUTION
Piping MUST be installed according to instructions given in "17 Piping
installation" [4 62]. Only mechanical joints (e.g. braze+flare connections) that are
compliant with the latest version of ISO14903 can be used.
CAUTION
Do NOT use mineral oil on flared part.Do NOT reuse piping from previous installations.NEVER install a drier to this unit to guarantee its lifetime. The drying material may
dissolve and damage the system.
)
"17Piping installation"[462]
)
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CAUTION
Incomplete flaring may cause refrigerant gas leakage.Do NOT re-use flares. Use new flares to prevent refrigerant gas leakage.Use flare nuts that are included with the unit. Using different flare nuts may
cause refrigerant gas leakage.
CAUTION
Install the refrigerant piping or components in a position where they are unlikely to be exposed to any substance which may corrode components containing refrigerant, unless the components are constructed of materials that are inherently resistant to corrosion or are suitably protected against corrosion.
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3 | Specific installer safety instructions
Electrical installation (see
WARNING
All wiring MUST be performed by an authorised electrician and MUST comply
with the applicable legislation.
Make electrical connections to the fixed wiring.All components procured on-site and all electrical construction MUST comply
with the applicable legislation.
WARNING
If the power supply has a missing or wrong N-phase, equipment might break
down.
Establish proper earthing. Do NOT earth the unit to a utility pipe, surge absorber,
or telephone earth. Incomplete earthing may cause electrical shock.
Install the required fuses or circuit breakers.Secure the electrical wiring with cable ties so that the cables do NOT come in
contact with sharp edges or piping, particularly on the high-pressure side.
Do NOT use taped wires, stranded conductor wires, extension cords, or
connections from a star system. They can cause overheating, electrical shock or fire.
Do NOT install a phase advancing capacitor, because this unit is equipped with an
inverter. A phase advancing capacitor will reduce performance and may cause accidents.
"18Electrical installation"[467]
)
WARNING
ALWAYS use multicore cable for power supply cables.
WARNING
Use an all-pole disconnection type breaker with at least 3mm between the contact point gaps that provide full disconnection under overvoltage category III.
WARNING
If the supply cord is damaged, it MUST be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
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For the user

For the user
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4 User safety instructions

Always observe the following safety instructions and regulations.

4.1 General

WARNING
If you are NOT sure how to operate the unit, contact your installer.
WARNING
This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
4 | User safety instructions
Children SHALL NOT play with the appliance. Cleaning and user maintenance SHALL NOT be made by
children without supervision.
WARNING
To prevent electrical shocks or fire:
Do NOT rinse the unit.Do NOT operate the unit with wet hands.Do NOT place any objects containing water on the unit.
CAUTION
Do NOT place any objects or equipment on top of the
unit.
Do NOT sit, climb or stand on the unit.
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4 | User safety instructions
Units are marked with the following symbol:
Batteries are marked with the following symbol:
This means that electrical and electronic products may NOT be mixed with unsorted household waste. Do NOT try to dismantle the system yourself: the dismantling of the system, treatment of the refrigerant, of oil and of other parts must be done by an authorized installer and must comply with applicable legislation.
Units must be treated at a specialized treatment facility for reuse, recycling and recovery. By ensuring this product is disposed of correctly, you will help to prevent potential negative consequences for the environment and human health. For more information, contact your installer or local authority.
This means that the batteries may NOT be mixed with unsorted household waste. If a chemical symbol is printed beneath the symbol, this chemical symbol means that the battery contains a heavy metal above a certain concentration.
Possible chemical symbols are: Pb: lead (>0.004%).
Waste batteries must be treated at a specialized treatment facility for reuse. By ensuring waste batteries are disposed of correctly, you will help to prevent potential negative consequences for the environment and human health.

4.2 Instructions for safe operation

WARNING
Do NOT modify, disassemble, remove, reinstall or repair
the unit yourself as incorrect dismantling or installation may cause an electric shock or fire. Contact your dealer.
In case of accidental refrigerant leaks, make sure there
are no naked flames. The refrigerant itself is entirely safe and non-toxic. R410A is a non-combustible refrigerant, and R32 is a mildly flammable refrigerant, but they will generate a toxic gas when they accidentally leak into a room where combustible air from fan heaters, gas cookers, etc. is present. Always have qualified service personnel confirm that the point of leakage has been repaired or corrected before resuming operation.
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4 | User safety instructions
CAUTION
NEVER touch the internal parts of the controller.Do NOT remove the front panel. Some parts inside are
dangerous to touch and appliance problems may happen. For checking and adjusting the internal parts, contact your dealer.
WARNING
This unit contains electrical and hot parts.
WARNING
Before operating the unit, be sure the installation has been carried out correctly by an installer.
CAUTION
It is unhealthy to expose your body to the air flow for a long time.
CAUTION
To avoid oxygen deficiency, ventilate the room sufficiently if equipment with burner is used together with the system.
CAUTION
Do NOT operate the system when using a room fumigation-type insecticide. Chemicals could collect in the unit, and endanger the health of people who are hypersensitive to chemicals.
CAUTION
ALWAYS use a user interface to adjust the angle of the
flap. When the flap is swinging and you move it forcibly by hand, the mechanism will break.
Be careful when adjusting the louvers. Inside the air
outlet, a fan is rotating at high speed.
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CAUTION
NEVER expose little children, plants or animals directly to the airflow.
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4 | User safety instructions
WARNING
Do NOT place a flammable spray bottle near the air conditioner and do NOT use sprays near the unit. Doing so may result in a fire.
Maintenance and service (see
CAUTION: Pay attention to the fan!
It is dangerous to inspect the unit while the fan is running. Be sure to turn off the main switch before executing any
maintenance task.
CAUTION
Do NOT insert fingers, rods or other objects into the air inlet or outlet. When the fan is rotating at high speed, it will cause injury.
WARNING
NEVER replace a fuse with a fuse of a wrong ampere ratings or other wires when a fuse blows out. Use of wire or copper wire may cause the unit to break down or cause a fire.
"10Maintenance and service"[434]
)
CAUTION
After a long use, check the unit stand and fitting for damage. If damaged, the unit may fall and result in injury.
CAUTION
Before accessing terminal devices, make sure to interrupt all power supply.
DANGER: RISK OF ELECTROCUTION
To clean the air conditioner or air filter, be sure to stop operation and turn all power supplies off. Otherwise, an electric shock and injury may result.
WARNING
Be careful with ladders when working in high places.
CAUTION
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Turn off the unit before cleaning the air outlet, exterior, front panel and air filter.
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4 | User safety instructions
WARNING
Do NOT let the indoor unit get wet. Possible consequence: Electric shock or fire.
About the refrigerant (see
WARNING: MILDLY FLAMMABLE MATERIAL
The R32 refrigerant (if applicable) in this unit is mildly flammable. Refer to the outdoor unit specifications for the type of refrigerant to be used.
WARNING
The appliance using R32 refrigerant shall be stored so as to prevent mechanical damage and in a well-ventilated room without continuously operating ignition sources (e.g. open flames, an operating gas appliance, or an operating electric heater). The room size shall be as specified in the General safety precaution.
WARNING
Do NOT pierce or burn refrigerant cycle parts.Do NOT use cleaning materials or means to accelerate
the defrosting process other than those recommended by the manufacturer.
"10.5About the refrigerant"[438]
)
Be aware that the refrigerant inside the system is
odourless.
WARNING
R410A is a non-combustible refrigerant, and R32 is a mildly flammable refrigerant; they normally don’t leak. If the refrigerant leaks in the room and comes into contact with fire from a burner, a heater, or a cooker, this may result in a fire (in case of R32), or the formation of a harmful gas.
Turn off any combustible heating devices, ventilate the room, and contact the dealer from where you purchased the unit.
Do not use the unit until a service person confirms that the part from which the refrigerant leaked has been repaired.
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4 | User safety instructions
Troubleshooting (see
WARNING
Stop operation and shut off the power if anything unusual occurs (burning smells etc.).
Leaving the unit running under such circumstances may cause breakage, electric shock or fire. Contact your dealer.
"11Troubleshooting"[439]
)
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5 About the system

b
c
a
d
e
WARNING
Do NOT modify, disassemble, remove, reinstall or repair the unit yourself as
incorrect dismantling or installation may cause an electric shock or fire. Contact your dealer.
In case of accidental refrigerant leaks, make sure there are no naked flames. The
refrigerant itself is entirely safe and non-toxic. R410A is a non-combustible refrigerant, and R32 is a mildly flammable refrigerant, but they will generate a toxic gas when they accidentally leak into a room where combustible air from fan heaters, gas cookers, etc. is present. Always have qualified service personnel confirm that the point of leakage has been repaired or corrected before resuming operation.
NOTICE
Do NOT use the system for other purposes. In order to avoid any quality deterioration, do NOT use the unit for cooling precision instruments, food, plants, animals, or works of art.
NOTICE
For future modifications or expansions of your system:
A full overview of allowable combinations (for future system extensions) is available in technical engineering data and should be consulted. Contact your installer to receive more information and professional advice.
5 | About the system

5.1 System layout

INFORMATION
The following illustration is an example and might NOT match your system layout.
FAA71+100BUV1B Split system air conditioner 4P654517-1 – 2021.03
a Indoor unit b Outdoor unit
c User interface
d Refrigerant piping + trasmission cable
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5 | About the system
a
c d
b
e f
g h
e Drain pipe
a Front panel b Front grille
c Service cover d Air filters e Drain hose
f Refrigerant pipes g Electrical wiring h User interface
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6 User interface

CAUTION
NEVER touch the internal parts of the controller.Do NOT remove the front panel. Some parts inside are dangerous to touch and
NOTICE
Do NOT wipe the controller operation panel with benzine, thinner, chemical dust cloth, etc. The panel may get discoloured or the coating peeled off. If it is heavily dirty, soak a cloth in water-diluted neutral detergent, squeeze it well and wipe the panel clean. Wipe it with another dry cloth.
NOTICE
NEVER press the button of the user interface with a hard, pointed object. The user interface may be damaged.
6 | User interface
appliance problems may happen. For checking and adjusting the internal parts, contact your dealer.
NOTICE
NEVER pull or twist the electric wire of the user interface. It may cause the unit to malfunction.
This operation manual offers a non-exhaustive overview of the main functions of the system.
For more information about the user interface, see the operation manual of the installed user interface.
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