Daikin FTXP50M2V1B How to use

Installer reference guide
Daikin room air conditioner
FTXP50M2V1B
FTXP60M2V1B
FTXP71M2V1B
FTXF20A2V1B
FTXF25A2V1B
FTXF35A2V1B
FTXF50A2V1B
FTXF60A2V1B
FTXF71A2V1B
ATXF50A2V1B
ATXF60A2V1B
ATXF71A2V1B

Table of contents
Installer reference guide
2
FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
Table of contents
1 General safety precautions 4
1.1 About the documentation .............................................................................................................................................. 4
1.1.1 Meaning of warnings and symbols ................................................................................................................ 4
1.2 For the installer............................................................................................................................................................... 5
1.2.1 General ........................................................................................................................................................... 5
1.2.2 Installation site ............................................................................................................................................... 6
1.2.3 Refrigerant...................................................................................................................................................... 9
1.2.4 Brine................................................................................................................................................................ 11
1.2.5 Water .............................................................................................................................................................. 11
1.2.6 Electrical ......................................................................................................................................................... 11
2 About the documentation 14
2.1 About this document ...................................................................................................................................................... 14
2.2 Installer reference guide at a glance .............................................................................................................................. 14
3 About the box 16
3.1 Overview: About the box ................................................................................................................................................ 16
3.2 Indoor unit ...................................................................................................................................................................... 16
3.2.1 To unpack the indoor unit.............................................................................................................................. 16
3.2.2 To remove the accessories from the indoor unit .......................................................................................... 17
4 About the unit 18
4.1 System layout.................................................................................................................................................................. 18
4.2 Operation range.............................................................................................................................................................. 18
5 Preparation 19
5.1 Overview: Preparation.................................................................................................................................................... 19
5.2 Preparing the installation site......................................................................................................................................... 19
5.2.1 Installation site requirements of the indoor unit .......................................................................................... 19
5.3 Preparing refrigerant piping ........................................................................................................................................... 20
5.3.1 Refrigerant piping requirements.................................................................................................................... 20
5.3.2 Refrigerant piping insulation.......................................................................................................................... 21
5.4 Preparing electrical wiring .............................................................................................................................................. 21
5.4.1 About preparing electrical wiring................................................................................................................... 21
6 Installation 23
6.1 Overview: Installation ..................................................................................................................................................... 23
6.2 Opening the indoor unit ................................................................................................................................................. 23
6.2.1 To remove the front panel ............................................................................................................................. 23
6.2.2 To re-install the front panel ........................................................................................................................... 24
6.2.3 To remove the front grille .............................................................................................................................. 24
6.2.4 To re-install the front grille ............................................................................................................................ 24
6.2.5 To remove the electrical wiring box cover..................................................................................................... 24
6.2.6 To open the service cover .............................................................................................................................. 25
6.3 Installing the indoor unit ................................................................................................................................................ 25
6.3.1 Precautions when installing the indoor unit.................................................................................................. 25
6.3.2 To install the mounting plate ......................................................................................................................... 25
6.3.3 To drill a wall hole........................................................................................................................................... 26
6.3.4 To remove the pipe port cover ...................................................................................................................... 27
6.3.5 To provide drainage........................................................................................................................................ 27
6.4 Connecting the refrigerant piping .................................................................................................................................. 30
6.4.1 About connecting the refrigerant piping ....................................................................................................... 30
6.4.2 Precautions when connecting the refrigerant piping.................................................................................... 30
6.4.3 Guidelines when connecting the refrigerant piping...................................................................................... 31
6.4.4 Pipe bending guidelines ................................................................................................................................. 32
6.4.5 To flare the pipe end ...................................................................................................................................... 32
6.4.6 To connect the refrigerant piping to the indoor unit .................................................................................... 33
6.5 Connecting the electrical wiring..................................................................................................................................... 33
6.5.1 About connecting the electrical wiring.......................................................................................................... 33
6.5.2 Precautions when connecting the electrical wiring....................................................................................... 34
6.5.3 Guidelines when connecting the electrical wiring......................................................................................... 34
6.5.4 Specifications of standard wiring components.............................................................................................. 35
6.5.5 To connect the electrical wiring on the indoor unit ...................................................................................... 35
6.5.6 To connect optional accessories (wired user interface, central user interface, wireless adapter, etc.)...... 37
6.6 Finishing the indoor unit installation.............................................................................................................................. 37
6.6.1 To insulate the drain piping, refrigerant piping and interconnection cable ................................................. 37

Table of contents
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
6.6.2 To pass the pipes through the wall hole........................................................................................................ 38
6.6.3 To fix the unit on the mounting plate ............................................................................................................ 38
7 Configuration 39
7.1 To set a different address............................................................................................................................................... 39
8 Commissioning 41
8.1 Overview: Commissioning .............................................................................................................................................. 41
8.2 Checklist before commissioning..................................................................................................................................... 41
8.3 To perform a test run...................................................................................................................................................... 42
8.3.1 To perform a test run in winter season ......................................................................................................... 42
9 Hand-over to the user 43
10 Disposal 44
11 Technical data 45
11.1 Wiring diagram................................................................................................................................................................ 45
11.1.1 Unified wiring diagram legend ....................................................................................................................... 45
12 Glossary 48

1 | General safety precautions
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
1 General safety precautions
1.1 About the documentation
▪The original documentation is written in English. All other languages are
translations.
▪The precautions described in this document cover very important topics, follow
them carefully.
▪The installation of the system, and all activities described in the installation
manual and in the installer reference guide MUST be performed by an authorised
installer.
1.1.1 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
Indicates a situation that could result in burning 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:

1 | General safety precautions
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
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.
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".
Indicates a table title or a reference to it.
Example: " 1–3 Table title" means "Table 3 in chapter 1".
1.2 For the installer
1.2.1 General
If you are NOT sure how to install or operate the unit, contact your dealer.
DANGER: RISK OF BURNING
▪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
electric 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.

1 | General safety precautions
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
CAUTION
Do NOT touch the air inlet or aluminium fins of the unit.
CAUTION
▪Do NOT place any objects or equipment on top of the unit.
▪Do NOT sit, climb or stand on the unit.
NOTICE
Works executed on the outdoor unit are best done under dry weather conditions to
avoid water ingress.
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:
▪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.
1.2.2 Installation site
▪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.
▪In bathrooms.
Instructions for equipment using R32 refrigerant
If applicable.
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.

1 | General safety precautions
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
WARNING
The appliance shall be stored so as to prevent mechanical damage and in a well-
ventilated 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.
NOTICE
▪Do NOT re-use joints which have been used already.
▪Joints made in installation between parts of refrigerant system shall be accessible
for maintenance purposes.
WARNING
Make sure installation, servicing, maintenance and repair comply with instructions
from Daikin and with applicable legislation (for example national gas regulation) and
are executed only by authorised persons.
Installation space requirements
NOTICE
▪Pipework shall be protected from physical damage.
▪Installation of pipework shall be kept to a minimum.
WARNING
If appliances contain R32 refrigerant, the floor area of the room in which the
appliances are installed, operated and stored MUST be larger than the minimum
floor area defined in table below A (m2). This applies to:
▪Indoor units without a refrigerant leakage sensor; in case of indoor units with
refrigerant leakage sensor, consult the installation manual
▪Outdoor units installed or stored indoors (e.g. winter garden, garage, machinery
room)
▪Pipework in unventilated spaces
To determine the minimum floor area
1Determine the total refrigerant charge in the system (= factory refrigerant
charge + additional refrigerant amount charged).
Contains fluorinated greenhouse gases
2
11
1
2
2kg
tCO
2
eq
1000
GWP × kg
=
=
+
kg
=
kg
=
GWP: xxx
R32
2Determine 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, and field piping in unventilated
spaces, 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 | General safety precautions
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
If the installation height is… Then use the graph or table for…
1.8≤x<2.2m Wall-mounted units
≥2.2m Ceiling-mounted units
3Use the graph or table to determine the minimum floor area.
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
1.8
2
2.2
2.4
2.6
2.8
3
3.2
3.4
3.6
3.8
4
4.2
4.4
4.6
4.8
5
5.2
5.4
5.6
5.8
6
6.2
6.4
6.6
6.8
7
7.2
7.4
7.6
7.8
1.843 7.956
8.0
Amin (m2)
Floor-standing unit
(c)
Wall-mounted unit
(b)
Ceiling-mounted unit
(a)
m (kg)

1 | General safety precautions
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
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
7.956 40.1
4.4 165
7.956 539
m (kg) Amin (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
7.956 59.9
Wall-mounted
unit(b)
m (kg) Amin (m2)
Floor-standing
unit(c)
m (kg) Amin (m2)
mTotal refrigerant charge in the system
Amin Minimum floor area
(a) Ceiling-mounted unit (= Ceiling-mounted unit)
(b) Wall-mounted unit (= Wall-mounted unit)
(c) Floor-standing unit (= Floor-standing unit)
1.2.3 Refrigerant
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 may be produced if refrigerant gas comes into contact with fire.

1 | General safety precautions
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
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: Self-
combustion 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.
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
(i.e., the cylinder is marked with "Liquid
filling siphon attached")
Charge with the cylinder upright.
A siphon tube is NOT present Charge with the cylinder upside down.
▪Open refrigerant cylinders slowly.

1 | General safety precautions
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
▪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.
1.2.4 Brine
If applicable. See the installation manual or installer reference guide of your
application for more information.
WARNING
The selection of the brine MUST be in accordance with the applicable legislation.
WARNING
Take sufficient precautions in case of brine leakage. If brine leaks, ventilate the area
immediately and contact your local dealer.
WARNING
The ambient temperature inside the unit can get much higher than that of the room,
e.g. 70°C. In case of a brine leak, hot parts inside the unit can create a hazardous
situation.
WARNING
The use and installation of the application MUST comply with the safety and
environmental precautions specified in the applicable legislation.
1.2.5 Water
If applicable. See the installation manual or installer reference guide of your
application for more information.
NOTICE
Make sure water quality complies with EU directive 98/83EC.
1.2.6 Electrical
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 1minute, 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.

1 | General safety precautions
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
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
electric 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, the earth connection must be made before the
current-carrying connections are established. When disconnecting the power supply,
the current-carrying connections must be separated before the earth connection is.
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.

1 | General safety precautions
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
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4P513661-8H – 2019.12
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.

2 | About the documentation
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
2 About the documentation
2.1 About this document
INFORMATION
Make sure that the user has the printed documentation and ask him/her to keep it
for future reference.
Target audience
Authorised installers
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.
Documentation set
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 manual:
-Installation instructions
-Format: Paper (in the box of the indoor unit)
▪Installer reference guide:
-Preparation of the installation, good practices, reference data,…
-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
▪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).
2.2 Installer reference guide at a glance
Chapter Description
General safety precautions Safety instructions that you MUST read before
installing
About the documentation What documentation exists for the installer

2 | About the documentation
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
Chapter Description
About the box How to unpack the units and remove their
accessories
About the unit ▪System layout
▪Operation range
Preparation What to do and know before going on‑site
Installation What to do and know to install the system
Configuration What to do and know to configure the system
after it is installed
Commissioning What to do and know to commission the system
after it is configured
Hand‑over to the user What to give and explain to the user
Disposal How to dispose of the system
Technical data Specifications of the system
Glossary Definition of terms

3 | About the box
Installer reference guide
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FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
3 About the box
3.1 Overview: About the box
This chapter describes what you have to do after the box with the indoor unit is
delivered on-site.
It contains information about:
▪Unpacking and handling the unit
▪Removing the accessories from the unit
Keep the following in mind:
▪At delivery, the unit MUST be checked for damage. Any damage MUST be
reported immediately to the claims agent of the carrier.
▪Bring the packed unit as close as possible to its final installation position to
prevent damage during transport.
▪When handling the unit, take into account the following:
Fragile, handle the unit with care.
Keep the unit upright in order to avoid damage.
▪Prepare the path along which you want to bring the unit inside in advance.
3.2 Indoor unit
INFORMATION
The following figures are just examples and may NOT completely match your system
layout.
3.2.1 To unpack the indoor unit

3 | About the box
Installer reference guide
17
FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
3.2.2 To remove the accessories from the indoor unit
1
3
2
2
1Remove the accessories located at the bottom of the package.
2× 2× 2×1× 1× 1×1× 1× 1×
edba c f g h i
aInstallation manual
bOperation manual
cGeneral safety precautions
dTitanium apatite deodorizing and silver particle filter (only for FTXP)
eIndoor unit fixing screw (M4×12L). Refer to "6.6.3To fix the unit on the mounting plate"[438].
fDry battery AAA.LR03 (alkaline) for user interface
gUser interface holder
hUser interface
iMounting plate

4 | About the unit
Installer reference guide
18
FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
4 About the unit
WARNING: FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
4.1 System layout
NOTICE
Design of the system must not be done at temperatures below –15°C.
a
f
c
e
d
b
aIndoor unit
bService lid
cAir filter
dTitanium apatite deodorizing and silver particle filter (only for FTXP)
eRefrigerant piping, drain hose and interconnection cable
fInsulation tape
4.2 Operation range
Use the system in the following temperature and humidity ranges for safe and
effective operation.
Operation mode Operation range
Cooling(a)(b) ▪Outdoor temperature: –10~46°C DB
▪Indoor temperature: 18~32°C DB
▪Indoor humidity: ≤80%
Heating(a) ▪Outdoor temperature: –15~24°C DB
▪Indoor temperature: 10~30°C DB
Drying(a) ▪Outdoor temperature: –10~46°C DB
▪Indoor temperature: 18~32°C DB
▪Indoor humidity: ≤80%
(a) A safety device might stop the operation of the system if the unit runs outside its
operation range.
(b) Condensation and water dripping might occur if the unit runs outside its operation
range.

5 | Preparation
Installer reference guide
19
FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
5 Preparation
5.1 Overview: Preparation
This chapter describes what you have to do and know before going on-site.
It contains information about:
▪Preparing the installation site
▪Preparing the refrigerant piping
▪Preparing the electrical wiring
5.2 Preparing the installation site
Do NOT install the unit in places often used as work place. In case of construction
works (e.g. grinding works) where a lot of dust is created, the unit MUST be
covered.
Choose an installation location with sufficient space for carrying the unit in and out
of the site.
WARNING
The appliance shall be stored in a room without continuously operating ignition
sources (example: open flames, an operating gas appliance or an operating electric
heater).
5.2.1 Installation site requirements of the indoor unit
INFORMATION
Also read the precautions and requirements in the "General safety precautions"
chapter.
INFORMATION
The sound pressure level is less than 70dBA.
▪Air flow. Make sure nothing blocks the air flow.
▪Drainage. Make sure condensation water can be evacuated properly.
▪Wall insulation. When conditions in the wall exceed 30°C and a relative humidity
of 80%, or when fresh air is inducted into the wall, then additional insulation is
required (minimum 10mm thickness, polyethylene foam).
▪Wall strength. Check whether the wall or the floor is strong enough to support
the weight of the unit. If there is a risk, reinforce the wall or the floor before
installing the unit.
Install power cables at least 1 metre away from televisions or radios to prevent
interference. Depending on the radio waves, a distance of 3metres may NOT be
sufficient.
▪Choose a location where the hot/cold air discharged from the unit or the
operation noise, will NOT disturb anyone.

5 | Preparation
Installer reference guide
20
FTXP50~71M2V1B + FTXF20~71A2V1B + ATXF50~71A2V1B
Daikin room air conditioner
4P513661-8H – 2019.12
▪Fluorescent lights. When installing a wireless user interface in a room with
fluorescent lights, mind the following to avoid interference:
-Install the wireless user interface as close as possible to the indoor unit.
-Install the indoor unit as far as possible from the fluorescent lights.
It is NOT recommended to install the unit in the following places because it may
shorten the life of the unit:
▪Where the voltage fluctuates a lot
▪In vehicles or vessels
▪Where acidic or alkaline vapour is present
▪In places where a mineral oil mist, spray or vapour may be present in the
atmosphere. Plastic parts may deteriorate and fall off or cause water leakage.
▪In places where the unit would be in the path of direct sunlight.
▪In bathrooms.
▪Sound sensitive areas (e.g. near a bedroom), so that the operation noise will
cause no trouble.
WARNING
Do NOT place objects below the indoor and/or outdoor unit that may get wet.
Otherwise condensation on the unit or refrigerant pipes, air filter dirt or drain
blockage may cause dripping, and objects under the unit may get dirty or damaged.
▪Spacing. Install the unit at least 1.8 m from the floor and keep the following
requirements in mind for distances from the walls and the ceiling:
≥50 ≥50
≥30
(mm)
5.3 Preparing refrigerant piping
5.3.1 Refrigerant piping requirements
INFORMATION
Also read the precautions and requirements in the "General safety precautions"
chapter.
NOTICE
The piping and other pressure-containing parts shall be suitable for refrigerant. Use
phosphoric acid deoxidised seamless copper for refrigerant.
▪Foreign materials inside pipes (including oils for fabrication) must be
≤30mg/10m.
Refrigerant piping diameter
Use the same diameters as the connections on the outdoor units: