Daikin FXCQ20AVEB, FXCQ50AVEB, FXCQ25AVEB, FXCQ63AVEB, FXCQ32AVEB Installation manuals
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INSTALLATION MANUAL
SYSTEM Air Conditioners
English
Deutsch
MODELS
2-Way Blow Ceiling-Mounted Cassette type
FXCQ20AVEB FXCQ50AVEB
FXCQ25AVEB FXCQ63AVEB
FXCQ32AVEB FXCQ80AVEB
FXCQ40AVEB FXCQ125AVEB
CAREFULLY READ THESE INSTRUCTIONS BEFORE INSTALLATION.
KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE.
LESEN SIE DIESE HINWEISE VOR DER INSTALLATION SORGFÄLTIG DURCH.
BEWAHREN SIE DIESE ANLEITUNG AN EINEM LEICHT ZUGÄNGLICHEN ORT FÜR SPÄTERES NACHSCHLAGEN AUF.
VEUILLEZ LIRE ATTENTIVEMENT CES INSTRUCTIONS AVANT L'INSTALLATION.
CONSERVEZ CE MANUEL EN LIEU SÛR POUR POUVOIR VOUS Y REPORTER
ULTÉRIEUREMENT.
LEA DETENIDAMENTE ESTAS INSTRUCCIONES ANTES DE LA INSTALACIÓN
CONSERVE ESTE MANUAL PARA POSIBLES CONSULTAS FUTURAS.
PRIMA DELL'INSTALLAZIONE, LEGGERE ATTENTAMENTE LE PRESENTI ISTRUZIONI.
CONSERVARE IL PRESENTE MANUALE IN UN LUOGO FACILMENTE ACCESSIBILE PER
RIFERIMENTO FUTURO.
ÄΙΑΒΑΣΤΕ ΠΡΟΣΕΚΤΙΚΑ ΑΥΤΕΣ ΤΙΣ ΟÄΗΓΙΕΣ ΠΡΙΝ ΤΗΝ ΕΓΚΑΤΑΣΤΑΣΗ
ΦΥΛΑΞΤΕ ΑΥΤΟ ΤΟ ΕΓΧΕΙΡΙÄΙΟ ΣΕ ΒΟΛΙΚΟ ΜΕΡΟΣ ΓΙΑ ΜΕΛΛΟΝΤΙΚΗ ΑΝΑΦΟΡΑ.
LEES DEZE INSTRUCTIES ZOGVULDIG DOOR VOORDAT MET DE INSTALLATIE WORDT
BEGONNEN.
BEWAAR DEZE HANDLEIDING VOOR TOEKOMSTIG GEBRUIK OP EEN GESCHIKTE
PLAATS ONDER HANDBEREIK.
Français
Español
Italiano
ЕллзнйкЬ
Nederlands
Portugues
Русский
LEIA ATENTAMENTE ESTAS INSTRUÇÕES ANTES DA INSTALAÇÃO.
MANTENHA ESTE MANUAL NUM LOCAL DE FÁCIL ACESSO PARA CONSULTA.
ПЕРЕД УСТАНОВКОЙ ВНИМАТЕЛЬНО ПРОЧИТАЙТЕ ДАННЫЕ ИНСТРУКЦИИ.
ХРАНИТЕ ДАННОЕ РУКОВОДСТВО В ЛЕГКО ДОСТУПНОМ МЕСТЕ ДЛЯ ЕГО
ПОСЛЕДУЮЩЕГО ИСПОЛЬЗОВАНИЯ.
MONTAJDAN ÖNCE BU YÖNERGELERÝ DÝKKATLÝCE OKUYUN
DAHA SONRA BAKMAK ÜZERE BU KILAVUZU SAKLAYIN
FXCQ20AVEB
FXCQ25AVEB
FXCQ32AVEB
FXCQ40AVEB
FXCQ50AVEB
FXCQ63AVEB
FXCQ80AVEB
FXCQ125AVEB
VRV SYSTEM
Air Conditioners
Installation manual
CONTENTS
1. SAFETY PRECAUTIONS ....................................................................................1
2. BEFORE INSTALLATION ....................................................................................3
3. SELECTION OF INSTALLATION LOCATION .....................................................5
4. PREPARATION BEFORE INSTALLATION .........................................................7
5. INSTALLATION OF INDOOR UNIT .....................................................................8
6. REFRIGERANT PIPING WORK ........................................................................10
7. DRAIN PIPING WORK.......................................................................................13
8. ELECTRIC WIRING WORK ...............................................................................17
9. MOUNTING DECORATION PANEL ..................................................................25
10. FIELD SETTING AND TEST OPERATION........................................................25
11. WIRING DIAGRAM ............................................................................................27
The original instructions are written in English. All other languages are translations of the original instructions.
1. SAFETY PRECAUTIONS
Be sure to follow this “SAFETY PRECAUTIONS”.
This product comes under the term “appliances not accessible to the general public”.
This is a class A product. In a domestic environment this product may cause radio interference in which case
the user may be required to take adequate measures.
• This manual classifies the precautions into WARNINGS and CAUTIONS.
Be sure to follow all the precautions below: They are all important for ensuring safety.
WARNING .......... Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
CAUTION ........... Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury.
It may also be used to alert against unsafe practices.
• After the installation is completed, test the air conditioner and check if the air conditioner operates properly.
Give the user adequate instructions concerning the use and cleaning of the indoor unit according to the
Operation Manual. Ask the user to keep this manual and the Operation Manual together in a handy place
for future reference.
WARNING
• Ask your local dealer or qualified personnel to carry out installation work.
Improper installation may result in water leakage, electric shocks or a fire.
• Perform installation work in accordance with this installation manual.
Improper installation may result in water leakage, electric shocks or a fire.
• Consult your dealer regarding what to do in case of refrigerant leakage.
When the air conditioner is installed in a small room, it is necessary to take proper measures so that the
amount of any leaked refrigerant does not exceed the concentration limit in the event of a leakage.
Otherwise, this may lead to an accident due to oxygen deficiency.
• Be sure to use only the specified parts and accessories for installation work.
Failure to use the specified parts may result in the air conditioner falling down, water leakage, electric
shocks, a fire, etc.
1 English
• Install the air conditioner on a foundation that can withstand its mass.
Insufficient strength may result in the air conditioner falling down and causing injury.
In addition, it may lead to vibration of indoor units and cause unpleasant chattering noise.
• Carry out the specified installation work in consideration of strong winds, typhoons, or earthquakes.
Improper installation may result in an accident such as air conditioner falling.
• Make certain that all electrical work is carried out by qualified personnel according to the applicable legislation (note 1) and this installation manual, using a separate circuit.
In addition, even if the wiring is short, make sure to use a wiring that has sufficient length and never connect
additional wiring to make the length sufficient.
Insufficient capacity of the power supply circuit or improper electrical construction may lead to electric
shocks or a fire.
(note 1) applicable legislation means “All international, national and local directives, laws, regulations and/
or codes which are relevant and applicable for a certain product or domain”.
• Earth the air conditioner.
Do not connect the earth wiring to gas or water piping, lightning conductor or telephone earth wiring.
Incomplete earthing may cause electric shocks or a fire.
• Be sure to install an earth leakage breaker.
Failure to do so may cause electric shocks and a fire.
• Disconnect the power supply before touching the electric components.
If you touch the live part, you may get an electric shocks.
• Make sure that all wiring is secure, using the specified wirings and ensuring that external forces do not act
on the terminal connections or wirings.
Incomplete connection or fixing may cause an overheat or a fire.
• When wiring between the indoor and outdoor units, and wiring the power supply, form the wirings orderly
so that the control box lid can be securely fastened.
If the control box lid is not in place, overheat of the terminals, electric shocks or a fire may be caused.
• If refrigerant gas leaks during installation work, ventilate the area immediately.
Toxic gas may be produced if refrigerant gas comes into contact with a fire.
• After completing the installation work, check to make sure that there is no leakage of refrigerant gas.
Toxic gas may be produced if refrigerant gas leaks into the room and comes into contact with a source of
a fire, such as a fan heater, stove or cooker.
• Never directly touch any accidental leaking refrigerant. This could result in severe wounds caused by
frostbite.
CAUTION
• Install drain piping according to this installation manual to ensure good drainage, and insulate the piping to
prevent condensation.
Improper drain piping may cause water leakage, make the furniture get wet.
• Install the air conditioner, power supply wiring, remote controller wiring and transmission wiring at least 1
meter away from televisions or radios to prevent image interference or noise.
(Depending on the radio waves, a distance of 1 meter may not be sufficient to eliminate the noise.)
• Install the indoor unit as far as possible from fluorescent lamps.
If a wireless remote controller kit is installed, the transmission distance may be shorter in a room where an
electronic lighting type (inverter or rapid start type) fluorescent lamp is installed.
• Do not install the air conditioner in places such as the following:
1. Where there is mist of oil, oil spray or vapour for example a kitchen.
Resin parts may deteriorate, and cause them to fall out or water to leak.
2. Where corrosive gas, such as sulfurous acid gas, is produced.
Corrosion of copper pipings or brazed parts may cause the refrigerant to leak.
3. Where there is machinery which emits electromagnetic waves.
Electromagnetic waves may disturb the control system, and cause malfunction of the equipment.
4. Where flammable gases may leak, where carbon fibre or ignitable dust is suspended in the air or where
volatile flammables, such as thinner or gasoline, are handled.
If the gas should leak and remained around the air conditioner, it may cause ignition.
• The air conditioner is not intended for use in a potentially explosive atmosphere.
English 2
2. BEFORE INSTALLATION
When unpacking the indoor unit or moving the unit after unpacked, hold the hangers (4 places) and
do not apply force to other parts (particularly refrigerant piping, drain piping and resin parts).
• Make sure to check in advance that the refrigerant to be used for installation work is R410A.
(The air conditioner will not properly operate if a wrong refrigerant is used.)
• For installation of the outdoor unit, refer to the installation manual attached to the outdoor unit.
• Do not throw away the accessories until the installation work is completed.
• After the indoor unit is carried into the room, to avoid the indoor unit from getting damaged, take measures
to protect the indoor unit with packing materials.
(1) Determine the route to carry the unit into the room.
(2) Do not unpack the unit until it is carried to the installation location.
Where unpacking is unavoidable, use a sling of soft material or protective plates together with a rope
when lifting, to avoid damage or scratches to the indoor unit.
• Have the customer actually operate the air conditioner while looking at the operation manual.
Instruct the customer how to operate the air conditioner (particularly cleaning of the air filters, operation procedures, and temperature adjustment).
• For selection of installation location, use the installation pattern paper as reference.
• Do not use the air conditioner where in the salty atmosphere such as coastal areas, vehicles, vessels or the
voltage fluctuation is frequent such as factories.
• Take off static electricity from the body when carrying out wiring and the control box lid is removed.
The electric parts may be damaged.
2-1 ACCESSORIES
Check if the following accessories are attached to the indoor unit.
Name (1) Drain hose (2) Metal clamp (3) Washer for hanger (4) Clamp
Quantity 1 pc. 1 pc. 8 pcs. 8 pcs.
Shape
Name
Quantity 1 sheet 4 pcs. 4 pcs. 1 each
Shape
Name
Quantity 1 sheet 2 sheets 2 sheets 1 pc.
Shape
(5) Installation pattern
paper
Sealing material for
piping
(10) Large (11) Small
(6) Screw (M5) (7) Washer clamp
(12) Sealing material
for wiring
(13) Insulation piping
cover for drain piping
Joint insulating
material
(8) For gas piping
(9) For liquid piping
(Miscellaneous)
• Operation manual
• Installation manual
• Declaration of
conformity
• Screws for fixing the panel are attached to the decoration panel.
3 English
2-2 OPTIONAL ACCESSORIES
• This indoor unit separately requires a decoration panel and a remote controller.
• Confirm if a decoration panel shown in the Table 1 is prepared and meets your model.
(Refer to the installation manual attached to the decoration panel for how to install.)
Ta b l e 1
Indoor unit Decoration panel
FXCQ20AVEB
FXCQ25AVEB
FXCQ32AVEB
FXCQ40AVEB
FXCQ50AVEB
FXCQ63AVEB
FXCQ80AVEB
FXCQ125AVEB
• There are 2 kinds of remote controller; wired type and wireless type.
Install the remote controller to the place where the customer has given consent.
Refer to the catalog for the applicable model.
(Refer to the installation manual attached to the remote controller for how to install.)
BYBCQ40HW1
BYBCQ63HW1
BYBCQ125HW1
CARRY OUT THE WORK GIVING CAUTION TO THE FOLLOWING ITEMS AND AFTER THE
WORK IS COMPLETED CHECK THESE AGAIN.
1. Items to be checked after the installation work is completed
Items to be checked In case of defective
Are the indoor and outdoor units rigidly fixed? Drop · vibration · noise
Are the installation works of the outdoor and
indoor units completed?
Have you carried out a leakage test with the
test pressure specified in the outdoor unit
installation manual?
Is the insulation of refrigerant piping and drain
piping completely carried out?
Does the drain flow out smoothly? Water leakage
Is the power supply voltage identical to that
stated in the manufacturer’s label on the air
conditioner?
Are you sure that there is no wrong wiring or
piping or no loose wiring?
Is earthing completed? Danger in case of leakage
Are the sizes of electric wiring according to the
specification?
Is any of air outlets or inlets of the indoor and
outdoor units blocked with obstacles?
(It may lead to capacity drop due to fan speed
drop or malfunction of equipment.)
Have you recorded the refrigerant piping length
and the refrigerant charge added?
Does not operate · burnout
Does not cool / Does not heat
Water leakage
Does not operate · burnout
Does not operate · burnout
Does not operate · burnout
Does not cool / Does not heat
Refrigerant charge amount is not clear
Check
column
Make sure to recheck the items of “SAFETY PRECAUTIONS”.
English 4
2. Items to be checked at delivery
Items to be checked
Have you carried out field setting? (if necessary)
Are the control box lid, resin cover, the air filter and the suction panel attached?
Does the cool air discharge during the cooling operation and the warm air discharge during
the heating operation? Does the indoor unit makes unpleasant sound of air charge?
Have you explained how to operate the air conditioner showing the operation manual to the
customer?
Have you explained the description of cooling, heating, program dry and automatic (cooling/
heating) given in the operation manual to the customer?
If you set the fan speed at thermostat OFF, did you explain the set fan speed to the customer.
Have you handed the operation manual and the installation manual to the customer?
Points of the operation explanation
In addition to the general usage, since the items in the operation manual with the WARNING and
CAUTION marks are likely to result in human bodily injuries and property damages, it is neces-
sary not only to explain these items to the customer but also to have the customer read them.
Check
column
3. SELECTION OF INSTALLATION LOCATION
Hold the hangers at 4 places to move the indoor unit when unpacking or after unpacked, and do not
apply force to the piping (refrigerant and drain) and resin parts.
If the temperature and humidity in the ceiling is likely to exceed 30°C, RH80%, use the optional kit for
coping with high temperature and humidity, or additionally stick the insulation to the indoor unit.
Use the insulation such as glass wool or polyethylene that has thickness of 10mm or more. However,
keep the insulated outside dimension smaller than the ceiling opening so that the unit may go
through the opening at installation.
(1) Select the installation location that meets the following conditions and get approval of the cus-
tomer.
• Where the cool and warm air spreads evenly in the room.
• Where there is no obstacles in the air passage.
• Where drainage can be ensured.
• Where the ceiling lower surface is not remarkably inclined.
• Where there is sufficient strength to withstand the mass of the indoor unit. (If the strength is insufficient,
the indoor unit may vibrate and get in contact with the ceiling and generate unpleasant chattering noise.)
• Where a space sufficient for installation and service can be ensured. (Refer to Fig. 1)
• Where the piping length between the indoor and the outdoor units is ensured within the allowable length.
(Refer to the installation manual attached to the outdoor unit.)
• Where there is no risk of flammable gas leak.
5 English
Required installation space (mm)
355 or
more
100 or
more
1500 or
more
1500 or
more
1000 or more
from the furniture
CAUTION
• Install the indoor and outdoor units, power supply wiring, remote controller wiring and transmission wiring
at least 1 meter away from televisions or radios to prevent image interference or noise.
(Depending on the radio waves, a distance of 1 meter may not be sufficient to eliminate the noise.)
• Install the indoor unit as far as possible from fluorescent lamps.
If a wireless remote controller kit is installed, the transmission distance may be shorter in a room where an
electronic lighting type (inverter or rapid start type) fluorescent lamp is installed.
(2) Ceiling height
• This indoor unit can be installed in a space of which ceiling height is up to 3.5m
• However, in case of 20-63 type, if the ceiling height exceeds 2.7m, it is necessary to set from the remote
controller on site. Refer to the section “10. FIELD SETTING AND TEST OPERATION”.
Fig. 1
100 or
more
Floor level
2500 or more
from the floor level
(3) Use hanging bolts for installation.
Investigate if the installation place can withstand the mass of the indoor unit and, if necessary, hang the
indoor unit with bolts after it is reinforced by beams etc.
(Refer to the installation pattern paper (5) for the mounting pitch.)
English 6
4. PREPARATION BEFORE INSTALLATION
(1) Check the relation of location between the ceiling opening and the indoor unit hanging bolts.
620
640
700
(Ceiling opening)
(Panel outside dimension)
30 30
520
(Unit outside dimension)
[Relation of locations between the ceiling and the indoor unit]
B (Hanging bolt pitch)
C (Unit outside dimension)
Decoration panel
Ceiling opening
Top view
(Hanging bolt pitch)
20 20
Side view
A (Ceiling opening)
D (Panel outside dimension)
Hanger
Indoor unit
Hanging bolt (4 pcs.)
(unit [mm])
(unit [mm])
160
Ceiling surface
(unit [mm])
Model A B C D
FXCQ20·25·32·40AVEB 1030 820 775 1070
FXCQ50·63AVEB 1245 1035 990 1285
FXCQ80·125AVEB 1700 1490 1445 1740
(2) Make the ceiling opening required for installation. (in case of existing ceiling)
• Use the installation pattern paper (5) matched to the ceiling opening dimension.
• Make the ceiling opening required for installation at the installation location and carry out refrigerant/
drain piping, power supply wiring, remote controller wiring (not needed in case of wireless remote controller) and wiring between the indoor and outdoor units. (Refer to each section “6. REFRIGERANT PIP-
ING WORK, 7. DRAIN PIPING WORK and 8. ELECTRIC WIRING WORK”)
• After making the opening, sometimes it is necessary to reinforce the ceiling framework to keep the level
of the ceiling and prevent vibration of the ceiling.
For details, consult with the builder and interior designer.
7 English
(3) Install the hanging bolts.
• Use M8 or M10 bolts for hanging the indoor unit.
Use hole-in-anchors for the existing bolts and embedded inserts or foundation bolts for new bolts, and
fix the indoor unit firmly to the building so that it may withstand the mass of the unit.
In addition, adjust the distance from the ceiling in advance.
<Installation examples>
Ceiling slab
Foundation bolt
Long nut or turn-buckle
100mm
approx.
Note) The above shown parts are all field supply.
Hanging bolt
Ceiling surface
5. INSTALLATION OF INDOOR UNIT
〈〈It is easy to attach the optional parts (except for decoration panel) before installing the indoor unit.
Refer to also the installation manual attached to the optional parts.〉〉
For installation, use the attached installation parts and specified parts.
(1) Install the indoor unit temporarily.
• Fix the hanger to the hanging bolt.
Make sure to securely fix the hanger with the nut and the washer for hanger (3) from the upper and lower
side. (Refer to Fig. 2)
If the washer clamp (7) is used, the upper side washer for hanger (3) may be protected from falling off.
(Refer to Fig. 3)
[To fix hanger] Hanging bolt [Washer clamp (7) fixing method]
Nut
(Field supply)
(2) Adjust the indoor unit height from the floor level.
[In case of newly built ceiling]
• The installation pattern paper (5) is matched to the ceiling opening dimension.
For the height of ceiling lower surface from the floor level, confirm with the builder of ceiling.
• The center of the ceiling opening is shown in the installation pattern paper (5).
• Put the installation pattern paper (5) to the indoor unit bottom with four screws (6). (Refer to Fig. 4)
• Fold the guides (4 places) shown in the installation pattern paper (5). Adjust the indoor unit height from
the floor level so that the ceiling lower surface and the notch lower part will match together.
(Refer to Fig. 5)
Washer for hanger (3)
(accessory)
Hanger
Tighten the nut
(double nut)
Fig. 2
Washer clamp (7)
(accessory)
Insert
Upper side nut
Fig. 3
English 8
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