Daikin FHQ35CBVEB, FHQ50CBVEB, FHQ60CBVEB, FHQ71CBVEB, FHQ100CBVEB Operation manuals

OPERATION MANUAL

SPLIT SYSTEM Air Conditioners

English

SYSTEM Air Conditioners

MODELS

(Ceiling Suspended type)

SPLIT SYSTEM VRV SYSTEM
FHQ35CBVEB FXHQ32AVEB

FHQ50CBVEB FXHQ63AVEB
FHQ60CBVEB FXHQ100AVEB
FHQ71CBVEB
FHQ100CBVEB
FHQ125CBVEB
FHQ140CBVEB

Deutsch

Français

Español

Italiano

Ελληνικά

Nederlands

Português

Русский

Tü rk çe

Thank you for purchasing this product unit.
Carefully read this operation manual to ensure proper
operation.
After reading the manual, file it away for future refer­ence.
Furthermore, make certain that this operation manual
is handed to a new user when he takes over the oper­ation.
As this operation manual is dedicated for the indoor
unit, refer to also the operation manuals attached to
the outdoor unit and the remote controller.

Vielen Dank für den Kauf dieses Produktes.
Lesen Sie diese Betriebsanleitung sorgfältig um ein­wandfreien Gebrauch zu garantieren.
Nach dem lesen der Bedienungsanleitung, bewahren
Sie diese an einem sicheren Ort auf um ggf. darauf
zurück zu greifen.
Bitte händigen Sie diese Betriebsanleitung an jede
neue Person aus, die für den Betrieb verantwortlich
ist.
Da sich diese Betriebsanleitung auf das Innengerät
bezieht, sollten Sie auch die Betriebsanleitungen des
Außengeräts und der Fernbedienung lesen.

Σας ευχαριστούμε που αγοράσατε αυτό το προϊόν.
Διαβάστε προσεκτικά αυτό το εγχειρίδιο λειτουργίας
για να διασφαλιστεί η σωστή λειτουργία.
Μετά την ανάγνωση του εγχειριδίου, φυλάξτε το για
μελλοντική αναφορά.
Επιπλέον, βεβαιωθείτε ότι το παρόν εγχειρίδιο χρήσης
μεταβιβάζεται στο νέο χρήστη, όταν αυτός
αναλαμβάνει τη λειτουργία.
Δεδομένου ότι το παρόν εγχειρίδιο χρήσης αφορά
στην εσωτερική μονάδα, ανατρέξτε επίσης στα
εγχειρίδια λειτουργίας που επισυνάπτονται στην
εξωτερική μονάδα και το τηλεχειριστήριο.

Hartelijk dank voor uw aankoop van dit product.
Lees deze bedieningshandleiding zorgvuldig door om
een goede werking te garanderen.
Bewaar de handleiding, zodat u deze later nog kunt
raadplegen.
Vergeet niet deze bedieningshandleiding door te
geven aan een nieuwe gebruiker wanneer deze de
bediening overneemt.
Deze bedieningshandleiding heeft betrekking op de
binnenunit. Raadpleeg ook de bedieningshandleidin­gen voor de buitenunit en de afstandsbediening.

Merci d’avoir acheté ce produit.
Veuillez lire attentivement ce manuel de fonctionne­ment pour être sûr d’utiliser le produit correctement.
Après avoir lu le manuel d’utilisation, conservez-le afin
de pouvoir vous y reporter ultérieurement.
En outre, assurez-vous que le manuel de fonctionne­ment soit transmis au nouvel opérateur lorsqu’il
reprend l’exploitation du produit.
Puisque ce manuel de fonctionnement concerne uni­quement l’unité intérieure, reportez-vous également
aux manuels de fonctionnement joints pour l’unité
extérieure et la télécommande.

Gracias por adquirir este producto.
A fin de garantizar un funcionamiento correcto, lea
detenidamente este manual de instrucciones.
Una vez leído, guárdelo para futuras consultas.
Asimismo, asegúrese de entregar este manual de
instrucciones a un nuevo usuario.
Debido a que este manual de instrucciones está dedi­cado a la unidad interior, consulte también los manu­ales de instrucciones suministrados con la unidad
exterior y el mando a distancia.

Vi ringraziamo per aver acquistato questo prodotto.
Per garantire un corretto funzionamento del disposi­tivo, si prega di leggere attentamente questo manuale
d’uso.
Dopo aver letto il manuale, conservarlo per riferimento
futuro.
Assicurarsi inoltre di consegnare questo manuale
d’uso ad un nuovo utente che provi a utilizzare il dis­positivo.
Dal momento che questo manuale d’uso concerne
l’unità interna, fare riferimento anche ai manuali d’uso
forniti unitamente all’unità esterna e al comando a dis­tanza.

Obrigado por ter adquirido este produto.
Leia atentamente este manual do funcionamento para
garantir uma operação adequada.
Depois de ler o manual guarde-o para referência
futura.
Além disso, certifique-se de que este manual do func­ionamento é entregue a um novo utilizador quando
este fica encarregue da operação.
Como este manual do funcionamento é específico
para a unidade interior, consulte também os manuais
do funcionamento que acompanham a unidade exte­rior e o controlo remoto.

Спасибо, что выбрали нашу продукцию.
Для правильной эксплуатации устройства
внимательно прочтите данное руководство.
Сохраните руководство для дальнейшего
использования.
Кроме того, данное руководство по
эксплуатации следует передать новому
пользователю, если эксплуатировать устройство
будет другой человек.
Поскольку данное руководство по эксплуатации
посвящено только внутреннему блоку, см. также
руководства по эксплуатации, имеющиеся в
комплекте с вне
дистанционного управления.

Bu ürünü satın aldığınız için teşekkür ederiz.
Düzgün çalıştırma için bu kullanım kılavuzunu
dikkatlice okuyun.
Kılavuzu okuduktan sonra daha sonra bakmak
üzere kaldırın.
Ayrıca, ürünü başka bir kullanıcıya satarsanız bu
kullanım kılavuzunu da verdiğinizden emin olun.
Bu kullanım kılavuzu bir iç ünite ile ilgili
olduğundan, dış ünite ve uzaktan kumanda ile
ilgili kullanım kılavuzlarına da bakın.

шним блоком и пультом

 DISPOSAL REQUIREMENTS  VORSCHRIFTEN ZUR ENTSORGUNG  INSTRUCTIONS D’ÉLIMINATION
 REQUISITOS PARA LA ELIMINACIÓN  SPECIFICHE DI SMALTIMENTO  ΠΡΟΫΠΟΘΕΣΕΙΣ ΑΠΟΡΡΙΨΗΣ
 VEREISTEN VOOR HET OPRUIMEN  REQUISITOS PARA A ELIMINAÇÃO

Disposal requirements

Your air conditioning product is marked with this symbol. This means that
electrical and electronic products shall not be mixed with unsorted house­hold waste.
Do not try to dismantle the system yourself: the dismantling of the air condi­tioning system, treatment of the refrigerant, of oil and of other parts must be
done by a qualified installer in accordance with relevant local and national
legislation.
Air conditioners must be treated at a specialized treatment facility for re-use,
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. Please contact the installer or local authority for more infor­mation.
Batteries must be removed from the remote controller and disposed of sep­arately in accordance with relevant local and national legislation.

Vorschriften zur Entsorgung

Ihre Klimaanlage ist mit diesem Symbol gekennzeichnet. Das bedeutet,
dass elektrische und elektronische Produkte nicht mit unsortiertem Haus­haltsabfall entsorgt werden dürfen.
Versuchen Sie auf keinen Fall das System selbst zu demontieren. Die
Demontage des Klimaanlagensystems sowie die Handhabung von Kältemit­tel, Öl und möglichen weiteren Teilen muss von einem qualifizierten Monteur
gemäß den entsprechenden örtlichen und staatlichen Bestimmungen vorge­nommen werden.
Klimaanlagen müssen bei einer fachkundigen Einrichtung für Wiederver­wendung, Recycling und Wiedergewinnung aufbereitet werden. Indem Sie
dieses Produkt korrekt entsorgen, helfen Sie potenzielle negative Folgen für
die Umwelt und die Gesundheit der Menschen zu vermeiden. Nehmen Sie
bitte hinsichtlich weiterer Informationen Kontakt auf mit dem Monteur oder
den örtlichen Behörden.
Die Batterien müssen aus der Fernbedienung entfernt werden und gemäß
den entsprechenden örtlichen und staatlichen Vorschriften separat entsorgt
werden.

Specifiche di smaltimento

Il climatizzatore è contrassegnato con questo simbolo, ciò significa che i pro­dotti elettrici ed elettronici non possono essere smaltiti insieme ai rifiuti
domestici non differenziati.
Non cercare di rimuovere il sistema da soli: la rimozione del sistema di con­dizionamento, nonché il recupero del refrigerante, dell’olio e di qualsiasi altra
parte devono essere eseguiti da un installatore qualificato in conformità alla
legislazione locale e nazionale vigente in materia.
I climatizzatori devono essere trattati presso una struttura specializzata nel
riutilizzo, riciclaggio e recupero dei materiali. Il corretto smaltimento del pro­dotto eviterà le possibili conseguenze negative all’ambiente e alla salute
dell’uomo. Per maggiori informazioni contattare l’installatore o le autorità
locali.
Le batterie devono essere tolte dal telecomando e smaltite separatamente
conformemente alla legislazione locale e nazionale vigente in materia.

Προϋποθέσεις απόρριψης

Το κλιματιστικό σας επισημαίνεται με αυτό το σύμβολο. Αυτό σημαίνει ότι οι
ηλεκτρικές και ηλεκτρονικές συσκευές πρέπει να απορρίπτονται χωριστά
από τα οικιακά απορρίμματα.
Μην προσπαθήσετε να αποσυναρμολογήσετε μόνοι σας το σύστημα: Η
αποσυναρμολόγηση της μονάδας κλιματισμού, ο χειρισμός του ψυκτικού
μέσου, του λαδιού και των άλλων μερών θα πρέπει να γίνεται από κάποιο
ειδικευμένο τεχνικό, σύμφωνα με τη σχετική τοπική και εθνική νομοθεσία.
Για την εκ νέου χρήση, την ανακύκλωση και την επισκευή, οι μονάδες
κλιματισμού θα πρέπει να υφίστανται επεξεργασία σε ειδικές εγκαταστάσεις.
Επιβεβαιώνοντας ότι αυτό το προϊόν απορρίπτεται σωστά, θα αποφύγετε
ενδεχόμενες αρνητικές συνέπειες για το περιβάλλον και την υγεία.
Παρακαλώ επικοινωνήστε με τον τεχνικό εγκατάστασης ή τις τοπικές αρχές
για περισσότερες πληροφορίες.
Οι μπαταρίες θα πρέπει να αφαιρούνται από το τηλεχειριστήριο και να
απορρίπτονται ξεχωριστά, σύμφωνα με τη σχετική τοπική και εθνική
νομοθεσία.

Instructions d’élimination

Cet appareil de conditionnement d’air porte le symbole ci-joint. Ce symbole
signifie que les appareils électriques et électroniques doivent être éliminés
séparément des ordures ménagères non triées.
N’essayez pas de démonter vous-même l’appareil : le démontage de l’appa­reil de conditionnement d’air ainsi que le traitement du réfrigérant, de l’huile
et d’autres composants doivent être effectués par un installateur qualifié, en
accord avec les réglementations locales et nationales en vigueur.
Les appareils de conditionnement d’air doivent être traités dans des installa­tions spécialisées de dépannage, réutilisation ou recyclage. En vous assu­rant que cet appareil est éliminé correctement, vous contribuez à éviter les
conséquences potentiellement néfastes sur l’environnement et la santé.
Veuillez contacter votre installateur ou les autorités locales pour plus d’infor­mation.
Les piles de la télécommande doivent être enlevées et éliminées séparé­ment, conformément aux réglementations locales et nationales en vigueur.

Requisitos para la eliminación

Su acondicionador de aire está marcado con este símbolo. Esto significa
que los productos eléctricos y electrónicos no deben mezclarse con el resto
de residuos domésticos no clasificados.
No intente desmontar el sistema usted mismo: El desmantelamiento del
acondicionador de aire, así como el tratamiento del refrigerante, aceite y
otros componentes, debe ser efectuado por un instalador competente de
acuerdo con las normas locales y nacionales aplicables.
Los acondicionadores de aire deben ser tratados en instalaciones especiali­zadas para su reutilización, reciclaje y recuperación. Al asegurarse de des­echar este producto de la forma correcta, está contribuyendo a evitar posibles
consecuencias negativas para el entorno y para la salud de las personas.
Contacte, por favor, con el instalador o con las autoridades locales para
obtener más información.
Las pilas del control remoto deben extraerse y eliminarse por separado y de
acuerdo con la normativa local y nacional aplicable.

Vereisten voor het opruimen

Uw airconditioningproduct draagt dit symbool. Dit betekent dat u geen elek­trische en elektronische producten mag mengen met niet-gesorteerd
huishoudelijk afval.
Probeer niet zelf het systeem te ontmantelen: het ontmantelen van het air­conditioningsysteem, behandelen van het koelmiddel, olie en andere onder­delen moet worden uitgevoerd door een bevoegd installateur in
overeenstemming met de relevante lokale en nationale reglementeringen.
Airconditioners moeten bij een gespecialiseerd behandelingsbedrijf worden
behandeld voor hergebruik, recyclage en terugwinning. Door ervoor te zor­gen dat dit product op de correcte manier wordt opgeruimd, helpt u potenti­ele negatieve gevolgen voor het milieu en de gezondheid te voorkomen.
Voor meer informatie, gelieve contact op te nemen met de installateur of de
lokale overheid.
De batterijen moeten uit de afstandsbediening worden verwijderd en
afzonderlijk opgeruimd in overeenstemming met de relevante lokale en
nationale reglementeringen.

Requisitos para a eliminação

O equipamento de ar condicionado que possui está marcado com este sím­bolo. Significa que os produtos eléctricos e electrónicos não devem ser mis­turados com o lixo doméstico indiferenciado.
Não tente desmontar pessoalmente o sistema: o desmantelamento do
sistema de ar condicionado e o tratamento do líquido de refrigeração, do
óleo e de outros componentes têm de ser feitos por um instalador quali­ficado, cumprindo a legislação nacional relevante e regulamentos locais
aplicáveis.
Os equipamentos de ar condicionado têm de ser processados numa
estação de tratamento especializada, para reutilização, reciclagem ou recu­peração. Ao certificar-se de que este produto é eliminado correctamente,
está a contribuir para evitar as potenciais consequências negativas para o
ambiente e para a saúde humana. Contacte o seu instalador ou as autori­dades locais, para obter mais informações.
As pilhas do controlo remoto têm de ser retiradas e eliminadas separada­mente, cumprindo a legislação nacional e os regulamentos locais aplicáveis.

CONTENTS

WARNING

1. SAFETY PRECAUTIONS............................... 1

2. WHAT TO DO BEFORE OPERATION........... 3

3. OPERATION RANGE..................................... 5

4. INSTALLATION SITE ..................................... 5

5. OPERATION PROCEDURE........................... 6

6. OPERATION CHARACTERISTICS................ 6

7. OPTIMUM OPERATION................................. 8

8. MAINTENANCE

(FOR SERVICE PERSONNEL)...................... 9

9. NOT MALFUNCTION OF THE AIR

CONDITIONER............................................. 12

10. TROUBLE SHOOTING................................. 14

The original instructions are written in English. All
other languages are translations of the original
instructions.

Important information regarding the refrig­erant used

This product contains fluorinated greenhouse gases
covered by the Kyoto Protocol.

only be done by persons described in
manual.

The appliance is not intended for use by unattended young
children or persons who are incompetent to operate air
conditioners.

It may result in injury or electric shocks.

•

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 reading, keep this manual in a convenient place so

that you can refer to it whenever necessary. If the equip­ment is transferred to a new user, be sure also to hand
over the manual.

Refrigerant type : R410A

(1)

GWP

(1)

value : 1975

GWP = global warming potential

Periodical inspections for refrigerant leaks may be
required depending on European or local legislation.
Please contact your local dealer for more information.

1. SAFETY PRECAUTIONS

To gain full advantage of the air conditioner’s functions and to
avoid malfunction due to mishandling, please read this opera­tion manual carefully before use.
This product comes under the term “appliances not accessible
to the general public”.

This appliance is intended to be used by
expert or trained users in shops, in light
industry and on farms, or for commercial
use by lay persons.

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. Chil­dren shall not play with the appliance.
Cleaning and user maintenance shall

When the air conditioner is malfunctioning (giving off a
burning odor, etc.), turn off the power to the air condi­tioner and contact your local dealer.

Continued operation under such circumstances may result
in a failure, electric shocks or a fire.

Consult your local dealer regarding modification,
repair and maintenance of the air conditioner.

Improper workmanship may result in water leakage, electric
shocks or a fire.

Be sure to use fuses with the correct ampere reading.

Do not use improper fuses, copper or other wiring as a sub­stitute, as this may result in electric shocks, a fire, injury or
damage to the air conditioner.

Consult your local dealer if the air conditioner sub­merges owing to a natural disaster, such as a flood or
typhoon.

Do not operate the air conditioner in that case, or otherwise
a malfunction, electric shocks, or a fire may result.

Start or stop the air conditioner with the remote con­troller. Never use the power circuit breaker for this pur­pose.

Otherwise, it may cause a fire or water leakage. Further­more, if an automatic restart control is provided against
power failure and the power is recovered, the fan will rotate
suddenly and may cause injury.

Do not use the air conditioner in the atmosphere con­taminated with oil vapor, such as cooking oil or
machine oil vapor.

Oil vapor may cause crack damage to the air conditioner,
electric shocks, or a fire.

Do not use flammable materials (e.g., hairspray or
insecticide) near the air conditioner.
Do not clean the air conditioner with organic solvents
such as paint thinner.

The use of organic solvents may cause crack damage to
the air conditioner, electric shocks, or a fire.

1 English

Do not use the air conditioner in places with excessive

CAUTION

oily smoke, such as cooking rooms, or in places with
flammable gas, corrosive gas, or metal dust.

Using the air conditioner in such places may cause a fire or
air conditioner failures.

Beware of a fire in case of refrigerant leakage.

If the air conditioner is not operating correctly, i.e. not gen­erating cool or warm air, refrigerant leakage could be the
cause. Consult your local dealer for assistance. The refrig­erant used for the air conditioner is safe and normally does
not leak. However, if the refrigerant leaks and gets in con­tact with a naked burner, heater or cooker, it may generate
hazardous compounds. Turn off the air conditioner and call
your local dealer. Turn on the air conditioner after the qual­ified service person makes sure to confirm that the leakage
is repaired.

Do not place objects, including rods, your fingers, etc.,
in the air inlet or outlet.

Injury may result due to contact with the air conditioner’s
highspeed fan blades.

Consult your local dealer regarding cleaning the inside
of the air conditioner.

Improper cleaning may cause breakage of plastic parts,
water leakage and other damage as well as electric shocks.

Be aware that prolonged, direct exposure to cool or
warm air from the air conditioner, or to air that is too
cool or too warm can be harmful to your physical con­dition and health.

Consult your local dealer about installation work.

Doing the work yourself may result in water leakage, elec­tric shocks or a fire.

Contact professional personnel about attachment of
accessories and be sure to use only accessories spec­ified by the manufacturer.

If a defect results from your own workmanship, it may result
in water leakage, electric shocks or a fire.

Consult your local dealer regarding relocation and
reinstallation of the air conditioner.

Improper installation work may result in leakage, electric
shocks or a fire.

Be sure to earth the air conditioner.

Do not earth the air conditioner to a utility piping, lightning
conductor or telephone earth lead.
Imperfect earthing may result in electric shocks or a fire.
A high surge current from lightning or other sources may
cause damage to the air conditioner.

Be sure to install an earth leakage breaker.

Failure to install an earth leakage breaker may result in
electric shocks or a fire.

Be sure to use a dedicated power supply for the air con­ditioner.

The use of any other power supply may cause heat gener­ation, a fire, or air conditioner failures.

Consult your local 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 depletion.

Children should be watched so that they do not play
with the indoor unit or its remote controller.

Accidental operation by a child may result in injury or elec­tric shocks.

Do not allow a child to mount on the outdoor unit or
avoid placing any object on it.

Falling or tumbling may result in injury.

Do not let children play on or around the outdoor unit.

If they touch the unit carelessly, injury may be caused.

Be sure that children, plants or animals are not
exposed directly to airflow from the indoor unit, as
adverse effects may ensue.

Do not place flammable sprays or operate spray con­tainers near the air conditioner as this may result in a
fire.

Do not wash the air conditioner or the remote controller
with water, as this may result in electric shocks or fire.

Do not place water containers (flower vases, etc.) on
the indoor unit, as this may result in electric shocks or
a fire.

Do not put flammable containers, such as spray cans,
within 1 m from the air outlet.

The containers may explode because the warm air from the
indoor or outdoor unit will affect them.

Turn off the power when the air conditioner is not used
for long periods of time.

Otherwise, the air conditioner may get hot or catch on a fire
due to dust accumulation.

Do not place objects in direct proximity of the outdoor
unit and do not let leaves and other debris accumulate
around the unit.

Leaves are a hotbed for small animals which can enter the
unit. Once in the unit, such animals can cause malfunc­tions, smoke or a fire when making contact with electrical
parts.

Before cleaning, be sure to stop the air conditioner
operation, turn the power circuit breaker off.

Otherwise, an electric shocks and injury may result.

To avoid electric shocks, do not operate with wet
hands.

Never touch the internal parts of the remote controller.

Touching certain internal parts will cause electric shocks
and damage to the remote controller. Consult your local
dealer about checking and adjustment of internal parts.

To avoid oxygen deficiency, ensure that the room is
adequately ventilated if equipment such as a burner is
used together with the air conditioner.

Do not leave the remote controller wherever there is a
risk of wetting.

If water gets into the remote controller there is a risk of elec­trical leakage and damage to electronic components.

Watch your steps at the time of air filter cleaning or
inspection.

High-place work is required, to which utmost attention must
be paid.
If the scaffold is unstable, you may fall or topple down, thus
causing injury.

Do not remove the outdoor unit’s outlet side grille.

The grille protects against the unit’s high speed fan, which
may cause injury.

English 2

To avoid injury, do not touch the air inlet or aluminum

CAUTION! DANGER OF ELECTRIC SHOCKS

NOTE

Indoor unit

Outdoor unit

Unit without remote

operation system)

fins of the air conditioner.

Do not place objects that are susceptible to moisture
directly beneath the indoor or outdoor units.

Under certain conditions, condensation on the unit or refrig­erant piping, air filter dirt or drain blockage may cause drip­ping, resulting in fouling or failure of the object concerned.

Do not place heaters directly below the indoor unit, as
resulting heat can cause deformation.

Do not place appliances that produce naked flames in
places exposed to the airflow from the air conditioner
as this may impair combustion of the burner.

Do not block air inlets nor outlets.

Impaired airflow may result in insufficient performance or
trouble.

Do not use the air conditioner for purposes other than
those for which it is intended.

Do not use the air conditioner for cooling precision instru­ments, food, plants, animals or works of art as this may
adversely affect the performance, quality and/or longevity
of the object concerned.

Do not install the air conditioner at any place where
there is a danger of flammable gas leakage.

In the event of a gas leakage, build-up of gas near the air
conditioner may result in a fire.

Carry out drain piping properly to ensure complete
drainage.

If drain piping is not carried out properly, drain will not flow
out. Then, dirt and debris may be accumulated in the drain
piping and may cause water leakage. If it occurs, stop the
air conditioner and call your local dealer for assistance.

Measuring points for
the residual voltage

0

-

+

+

C

C

–

A1P

A1P

Printed
Circuit

X2M

X1M

Control
box

Board

Fig. 1

• After power failure, operation will restart auto­matically.

2. WHAT TO DO BEFORE OPERA­TION

This operation manual is for the following systems
with standard control.
Before initiating operation, contact your local dealer
for the operation that corresponds to your system.

2-1. FHQ

• NOTE TO SERVICE PERSONNEL

• When checking the electric components (such

as the inside of the control box, fan motor, drain
pump, etc.), make sure to shut off all power sup­ply for the air conditioner (including both indoor
and outdoor units).

• When cleaning the heat exchanger, make sure
to remove the electronic components above (If
they get cleaning agent, there is a risk that the
components will burn out because of insulation
degradation.)

• Shut off power supply before work.

• Never open the control box lid for 10 minutes

after shutting off the power supply because
there is residual voltage.

• After opening the control box lid, measure resid­ual voltage between the points shown Fig. 1 on
the Printed Circuit Board by the tester without
touching the live part and confirm that the resid­ual voltage is DC50V or below.

WARNING

RISK OF ELECTRIC SHOCKS OR A FIRE

Unit with
remote
controller

controller
(When used as
simultaneous

• Read the operation manual attached to the
remote controller you are using.

When using a wireless remote controller, refer to the
operation manual attached to the wireless remote
controller kit.
If your installation has a customized control system,
ask your local dealer for the operation that corre­sponds to your system.

• Heat pump type
This system provides COOLING, HEATING,
AUTOMATIC, PROGRAM DRY, and FAN OPER­ATION modes.

• Cooling only type
This system provides COOLING, PROGRAM
DRY, and FAN OPERATION modes.

3 English

PRECAUTIONS FOR GROUP CONTROL

NOTE

NOTE

Outdoor unit

Indoor unit

Unit with
remote
controller

Unit with
remote
controller

NOTE

c

f

g

d

a

e

b

SYSTEM OR TWO REMOTE CONTROLLERS
CONTROL SYSTEM

This system provides two other control systems
beside individual control (one remote controller con­trols one indoor unit) system. Confirm the following if
your unit is the following control system type.

• Group control system

One remote controller controls up to 16 indoor units.
All indoor units are equally set.

• Two remote controllers control system

Two remote controllers control one indoor unit (In
case of group control system, one group of indoor
units).

ature sensor to individually control the tempera­ture according to the set temperature on the
remote controller.

• Two remote controllers control system

Two remote controllers control one indoor unit (In
case of group control system, one group of indoor
units). The unit is individually operated.

• Contact your local dealer in case of changing the

combination or setting of group control and two
remote controller control systems.

• Please do not change the combination and set-

tings for the group operation and two remote con­trollers control systems by yourself, but be sure to
ask your local dealer.

• Contact your local dealer in case of changing the

• Please do not change the combination and set-

2-2. FXHQ

• Read the operation manual attached to the out-

When using a wireless remote controller, refer to the
operation manual attached to the wireless remote
controller kit.
If your installation has a customized control system,
ask your local dealer for the operation that corre­sponds to your system.

PRECAUTIONS FOR GROUP CONTROL
SYSTEM OR TWO REMOTE CONTROLLERS
CONTROL SYSTEM

This system provides two other control systems
beside individual control (one remote controller con­trols one indoor unit) system. Confirm the following if
your unit is of the following control system type.

• Group control system

combination or setting of group control and two
remote controller control systems.

tings for the group operation and two remote con­trollers control systems by yourself, but be sure to
ask your local dealer.

door unit and remote controller you are using.

One remote controller controls up to 16 indoor units.
Each indoor unit uses its respective inlet temper-

Names and functions of parts

a Air outlet
b Horizontal blade (at air outlet)

Suction grille

c

(Refer to “8. MAINTENANCE” on page 9.)
Air filter (inside suction grille)

d

(Refer to “8. MAINTENANCE” on page 9.)
Remote controller (optional part)

e

The remote controller may not be needed
depending on the system configuration.

f Drain piping

Refrigerant piping
Transmission wiring
Power supply wiring (only for FXHQ)
Earth wiring

g

(NOTE)
It is wiring to let electricity flow from the
indoor unit to the earth for prevention of elec­tric shocks / a fire in case of emergency.

English 4

3. OPERATION RANGE

If the temperature or the humidity is beyond the following condi­tions, safety devices may work and the air conditioner may not
operate, or sometimes, water may drop from the indoor unit.

3-1. FHQ

COOLING [°C]

OUTDOOR

UNIT

RN50
RN60

RKS35 · 50 · 60
RXS35 · 50 · 60

4MKS58 · 75
3MXS52 · 68
4MXS68 · 80
5MXS90

5MKS90

RZQ140 · 200 ·

250

RZQG

RZQSG 71 · 100 ·

RXS35 · 50 · 60 DB 10 to 30

3MXS52 · 68
4MXS68 · 80
5MXS90

RZQG 71 · 100 ·

RZQ200 · 250 DB 10 to 27

RZQSG71 DB 10 to 30

RZQSG 100 ·

RZQ140 DB 10 to 27

*

The setting temperature range of the remote con-

71 · 100 ·
125 · 140

125 · 140

HEATING [°C]

OUTDOOR

UNIT

125 · 140

125 · 140

To avoid condensation and water dripping out the indoor unit.
DB: Dry bulb temperature
WB: Wet bulb temperature

troller is 16°C to 32°C.

3-2. FXHQ

Read the operation manual attached to the out­door unit.

INDOOR

TEMPERATURE HUMIDITY

21 to 37

DB

WB

14 to 28
21 to 32

DB

WB

14 to 28

21 to 37

DB

14 to 28

WB

21 to 37

DB

WB

14 to 28
21 to 37

DB

WB

14 to 28

DB

18 to 37

WB

12 to 28

DB

21 to 37

WB

14 to 28

INDOOR

TEMPERATURE

DB 10 to 30

DB 10 to 27

DB 10 to 28

80%*or

below

80%*or

below

80%*or

below

80%*or

below

80%*or

below

80%*or

below

80%*or

below

OUTDOOR

TEMPERATURE

DB – 14 to 24

WB – 15 to 18

DB

WB – 15 to 15.5

DB –19.5 to 21

WB –20 to 15.5

DB – 14 to 21

WB – 15 to 15

DB – 14 to 21

WB –15 to 15.5

DB – 14 to 21

WB –15 to 15.5

DB – 14 to 21

WB –15 to 15.5

OUTDOOR

TEMPERATURE

19.4 to 46

DB

DB

– 10 to 46

DB

– 10 to 46

DB

10 to 46

– 5 to 46

DB

DB

– 15 to 50

– 10 to 43

DB

– 14 to 21

4. INSTALLATION SITE

Regarding places for installation

• Is the air conditioner installed at a well-ventilated
place where there are no obstacles around?

• Do not use the air conditioner in the following
places.

a. Filled with much mineral oil such as cutting oil
b. Where there is much salt such as a beach area
c. Where sulfured gas exists such as a hot-spring

resort

d. Where there are considerable voltage fluctua-

tions such as a factory or plant

e. Vehicles and vessels

f. Where there is much spray of oil and vapor

such as a cookery, etc.

g. Where there are machines generating electro-

magnetic waves

h. Filled with acid and/or alkaline steam or vapor

• Is a snow protection measure taken?

For details, consult your local dealer about snow
protection hoods, etc.

Regarding wiring

• All wiring must be performed by an qualified
personnel.

To do wiring, ask your local dealer. Never do it by
yourself.

• Make sure that a separate power supply circuit
is provided for this air conditioner and that all
electrical work is carried out by qualified per­sonnel according to local laws and regulations.

Pay attention to running noises, too

• Are the following places selected?

a. A place that can sufficiently withstand the mass

of the air conditioner with less running noises
and vibrations.

b. A place where the hot wind discharged from the

air outlet of the outdoor unit and the running
noises do not cause a nuisance to neighbours.

• Are you sure that there are no obstacles near
the air outlet of the outdoor unit?

Such obstacles may result in declined perfor­mance and increased running noises.

• If abnormal noises occur in use, stop the
operation of the air conditioner, consult your
local dealer.

Regarding drainage of drain piping

• Is the drain piping carried out properly to
ensure complete drainage?

If drain piping is not carried out properly, dirt and
debris may be accumulated in the drain piping
and cause water leakage. If it occurs, stop the air
conditioner and consult with your local dealer for
assistance.

5 English

5. OPERATION PROCEDURE

• Operating procedure varies with heat pump type

and cooling only type. Contact your local dealer to
confirm your system type.

• To protect the air conditioner, turn on the main

power switch 6 hours before operation.

• Do not shut off the power supply during seasonal

use of the air conditioner.
This is required in order to activate the air condi­tioner smoothly.

• If the main power supply is turned off during oper-

ation, operation will restart automatically after the
power turns back on again.

5-1. FHQ

Read the operation manual attached to the
remote controller.

5-2. FXHQ

Read the operation manual attached to the out­door unit and remote controller.

6. OPERATION CHARACTERIS­TICS

 CHARACTERISTICS OF THE COOLING

OPERATION (COOLING OPERATION AND
AUTOMATIC COOLING OPERATION)

• When operating continuously at downward airflow

direction, air blows in the automatically set direc­tion for a period of time to prevent condensation
on the horizontal blade. (The remote controller
displays the airflow direction that is set.)

• If the COOLING OPERATION is used when the

indoor temperature is low, frost forms on the heat
exchanger of the indoor unit. This can decrease
the cooling capacity. In this case, the air condi­tioner automatically switches to the DEFROST
OPERATION for a while.
During the DEFROST OPERATION, the low fan
speed is used to prevent the discharge of melt
water. (The remote controller displays the fan
speed that is set.)

• When the outdoor temperature is high, it takes

some time until the indoor temperature reaches
the set temperature.

 CHARACTERISTICS OF THE HEATING

OPERATION (HEATING OPERATION AND
AUTOMATIC HEATING OPERATION)

START OF OPERATION

• It generally takes a longer time for indoor temper-

ature of the HEATING OPERATION to reach the
set temperature compared to the COOLING
OPERATION. It is advisable to start operation in
advance using the TIMER OPERATION.

Perform the following operation to prevent heat­ing capacity decrease and discharge of cool air.

AT THE START OF OPERATION AND AFTER
THE DEFROST OPERATION

• A warm air circulating system is employed, and

therefore it takes some time until the entire room
is warmed up after the start of operation.

• The indoor fan runs to discharge a gentle wind

automatically until the temperature inside the air
conditioner reaches a certain level. At this time,

the remote controller displays “ ”. Leave it as
it stands and wait for a while.
(The remote controller displays the fan speed that
is set.)

• The airflow direction becomes horizontal to pre-

vent a draft of cool air to the inhabitants.
(The remote controller displays the airflow direc­tion that is set.)

DEFROST OPERATION
(Frost removal operation for the outdoor
unit)

• As the frost on the coil of an outdoor unit increase,

heating effect decreases and the air conditioner
goes into the DEFROST OPERATION.

• The indoor unit fan stops and the remote control-

ler display shows “ ”.
With the wireless remote controller, the warm air
stops, and the DEFROST OPERATION lamp on
the light receiving unit turn on. (The remote con­troller displays the fan speed that is set.)

• After maximum 10 minutes of the DEFROST

OPERATION, the air conditioner returns to the
HEATING OPERATION.

• The airflow direction becomes horizontal. (The

remote controller displays the airflow direction
that is set.)

• During or after the DEFROST OPERATION, white

mist comes out from the air inlet or outlet of the air
conditioner.
(Refer to “VI.” on page 13.)

• A hissing and “Shuh” sound may be heard during

this particular operation.

English 6

Regarding outside air temperature and heat-

A. Up and down
direction

B. Left and right direction

Fig. 2

swing

ing capacity

• The heating capacity of the air conditioner

declines as the outside air temperature falls. In
such a case, use the air conditioner in combina­tion with other heating systems.
(When a combustion appliance is used, ventilate
the room regularly.)
Do not use the combustion appliance where the air
from the air conditioner is blown directly toward it.

• When the warm air stays under the ceiling and

your feet are cold, we recommend that you use a
circulator (a fan to circulate the air inside the
room). For details, consult your local dealer.

• When the indoor temperature exceeds the set

temperature, the indoor unit discharges a gentle
breeze (switches to gentle wind). The airflow
direction becomes horizontal. (The remote con­troller displays the fan speed and airflow direction
that are set.)

 CHARACTERISTICS OF THE PROGRAM

DRY OPERATION

• This operation lowers the humidity without lower-

ing the indoor temperature. The indoor tempera­ture when the operation button is pressed will be
the set temperature. At this time, the fan speed
and temperature are set automatically, so the
remote controller does not display the fan speed
and set temperature.
To efficiently lower the indoor temperature and
humidity, first use the COOLING OPERATION to
lower the indoor temperature, and then use the
PROGRAM DRY OPERATION. When the indoor
temperature is lowered, airflow from the air condi­tioner may stop.
When operating continuously at downward airflow

•

direction, air blows in the automatically set direc­tion for a period of time to prevent condensation on
the horizontal blade. (The remote controller dis­plays the airflow direction that is set.)

• If the PROGRAM DRY OPERATION is used when

the indoor temperature is low, frost forms the heat
exchanger of the indoor unit. In this case, the air
conditioner automatically switches to the
DEFROST OPERATION for a while.
The low fan speed or a gentle wind is used to pre­vent the discharge of melt water.

AIRFLOW DIRECTION ADJUST

• There are 2 ways of adjusting the airflow direction.

(When the operation stops, the horizontal blades
at the air outlet (Up and down direction adjust­ment blades) close automatically.)

1. A. Up and down direction

2. B. Left and right direction

A. UP AND DOWN DIRECTION
Press the AIRFLOW DIRECTION ADJUST

button to select the air direction as following.

The AIRFLOW DIRECTION dis­play swings as shown the left and
the airflow direction continuously
varies. (Automatic swing setting)

Press AIRFLOW DIRECTION
ADJUST button to select the air
direction of your choice.

The AIRFLOW DIRECTION dis­play stops swinging and the air­flow direction is fixed (Fixed
airflow direction setting).

 SOUND PRESSURE LEVEL

• Sound pressure level is less than 70 dB(A).

7 English

MOVEMENT OF THE HORIZONTAL BLADE

NOTE

Outdoor

unit

Outdoor

unit

Triple

Remote
controller

Twin

Indoor
unit
(Slave)

NOTE

Vertical blade unit (top view)

Vertical blades

Air Air

For the following conditions, micro computer con­trols the airflow direction so it may be different from
the display.

B. LEFT AND RIGHT DIRECTION

• The left and right airflow direction can be fixed at

the desired position manually.

Operation
mode

Up and
down
direction

• COOLING

• AUTOMATIC

COOLING

• PROGRAM

DRY

• When operating

continuously at
downward air­flow direction
(Air blows in the
automatically set
direction for a
period of time to
prevent conden­sation on the
horizontal
blades.)

• HEATING

• AUTOMATIC

HEATING

• When room

temperature is
higher than the
set temperature

• When the HEAT-

ING OPERA­TION starts or
during the
DEFROST
OPERATION (if
frost forms on
the outdoor unit)
(The airflow
direction
becomes hori­zontal so that it
does not blow
directly toward
your body.)

• Only make adjustments after you have fixed the

up and down airflow direction in a position. Your
hand may get caught if you attempt to make
adjustments while the horizontal blade is swing­ing.

• Stop the horizontal blade from swinging before

trying to angle them. Working while the blade is
moving may get your fingers pinched.

• The four fins for the left and right airflow direction

operate in the same direction as a unit.

Do not operate adjacent units in the state
shown in the drawing. This may cause dripping

of condensation.

• When group control is performed on the simulta-

neous operation system (twin and triple), airflow
direction cannot be individually set on the slave
units.

Recommended airflow direction positions

Cooling

Heating

We recommend using the airflow in the position
listed above when fixing the airflow direction.

7. OPTIMUM OPERATION

Observe the following precautions to ensure the air
conditioner operates.

• Prevent direct sunlight from the window by using

curtains or blinds during the COOLING OPERA­TION.

• Keep doors and windows closed. If the doors and

windows remain open, room air will flow out and
decrease the effect of cooling and heating.

• Never place objects near the air inlet and the air

outlet of the air conditioner. It may decrease the
effect or stop the operation.

• Adjust the room temperature properly for a com-

fortable environment. Avoid excessive heating or
cooling.
Not doing so wastes electricity.

• When the display shows “ ” or “Time to clean

filter”, ask a qualified service person to clean the
filters.
(Refer to “8. MAINTENANCE” on page 9.)
Operating the indoor unit with stained air filter
may decrease capacity or cause malfunction.

• Install TVs, radios, and stereos 1 m or more away

from the indoor unit and remote controller.
Images may become fuzzy and noise may be
generated.

English 8

• Turn off the power circuit breaker when it is not in

WARNING

CAUTION

use for a long period. When the power circuit
breaker is turned on, small amount of power is
consumed even if the air conditioner is not in oper­ation. (*1)
Turn off the power circuit breaker for saving
energy. When reoperating, turn on the power cir­cuit breaker 6 hours before operation for smooth
running.
(Refer to “8. MAINTENANCE” on page 9.) (*2)

*1 The consumed power while the outdoor unit is

not in operation depends on the model.

*2 The setting before the power circuit breaker is

cut off is stored. (The timer setting is cleared.)

• Fully use the function of airflow direction adjust.

Cold air gathers on the floor, and warm air gathers
under the ceiling.
Set the air direction to horizontal during the
COOLING or PROGRAM DRY OPERATION, and
set it downwards during the HEATING OPERA­TION.
Do not let the air blow directly to a person.

• Use the TIMER OPERATION effectively.

It takes some time until the indoor temperature
reaches the set temperature. It is advisable to
start operation in advance using the TIMER
OPERATION.

•

Do not wash the air conditioner with water.
It may cause electric shocks or a fire due to leak­age.

• Make sure to turn off the air conditioner when
taking care of the air conditioner and discon­nect the power supply breaker.
Unless the power supply is disconnected, it
may cause electric shocks and injuries.

• When working at a high place, give caution to
your footing.
If the scaffold is unstable, it may cause inju­ries due to fall and stumbling.

NOTE

• Do not remove the air filter unless for clean­ing. It may cause failure.

• Do not attach substance (such as paper tow­els) other than the specified air filter to the air
inlet. The performance may drop and cause
freeze-up/water leakage.

HOW TO CLEAN THE AIR FILTER

When the remote controller indicates “ ” or “Time
to clean filter”, clean the air filter.

• It indicates after running for a certain time.

8. MAINTENANCE (FOR SERVICE PERSONNEL)

ONLY A QUALIFIED SERVICE PERSON IS
ALLOWED TO PERFORM MAINTENANCE

• Do not use flammable gas (such as hair
sprays and insecticides) near the air condi­tioner.

• Do not wipe the air conditioner with benzine or
thinner.
It may cause cracks, electric shocks or a fire.

• Never put your fingers or rods in the air inlet,
air outlet or horizontal blade. The fan is rotat­ing at high speed, so you would get injured.

NOTE

• You may change the time of indication “ ” or

“Time to clean filter”.

If the indoor unit is used in a space where the
air is more contaminated, ask your local
dealer for solution.

Contamination

Normal

More contami­nated

• If it becomes difficult to remove contamination

from the air filter, replace the air filter.
(Air filter for replacement is an optional acces­sory)

Time until indication is
displayed

2500 hours
(equivalent to one year)

1250 hours
(equivalent to a half year)

9 English

1. Open the suction grille.

Knob

Knobs
FHQ35·50
FXHQ32

: 2 places

: 3 places

FHQ60·71·100·125·140
FXHQ63·100

NOTE

Strap

Slide the knob to the arrow direction and slowly
open the grille.

2. Take out the air filter.

Push up the knobs at 2 places and take out the
air filter.

• Do not wash the air filter with water of 50°C or
higher. It may cause decolorization and defor­mation.

• Do not heat the filter with fire. It may cause
burning.

4. Attach the air filter.

After the air filter is cleaned, return the air filter to
the original place as it was attached before.

5. Close the suction grille.

Slide all the knobs in the reverse order men­tioned in the Clause 1 and securely fix the grille.

Turn off the indication “ ” or “Time to clean

6.
filter” displayed on the remote controller after
turning on the power.

The indication can be turned off whether in oper­ation or at stop.

<In case of BRC1E, BRC1D>

• For details, refer to the operation manual

attached to the remote controller.

<In case of BRC1C>

• Press FILTER SIGN RESET button.

Knob

Air filter

3. Clean the air filter.

Clean the contamination with a vacuum cleaner
or wash it with water.

If the air filter is
extremely con­taminated, wash
it with neutral
detergent using
a soft brush.

Air filter

After dewater­ing, dry the air
filter in the
shade.

HOW TO CLEAN THE SUCTION GRILLE

1. Open the suction grille.

Slide the knob to the arrow direction and slowly
open the suction grille.

Knobs
FHQ35·50
FXHQ32

FHQ60·71·100·125·140
FXHQ63·100

2. Remove the suction grille.
1 Keeping the suction grille open, remove the

strap.

: 2 places

: 3 places

Knob

English 10

2 Keep holding the clips at the upper part of the

Clip

Clips
FHQ35·50
FXHQ32

: 2 places

: 3 places

FHQ60·71·100·125·140
FXHQ63·100

suction grille and pull them to frontward.

3. Take out the air filter.
Refer to the Clause 2 for “HOW TO CLEAN THE
AIR FILTER”. (page 10)

4. Clean the suction grille.

Wash the suction grille with water or neutral
detergent using a soft brush and then dewater it.

7. Close the suction grille.

Slide all the knobs in the reverse order men­tioned in the Clause 1 and securely fix them.

HOW TO CLEAN AIR OUTLET, OUTSIDE
PANEL, AND REMOTE CONTROLLER

• Wipe them with a dry soft cloth.

• When the stain cannot be wiped off, dip the cloth

in the neutral detergent diluted with water and
twist the cloth. After wiping off stain with this cloth,
wipe them with dry cloth.

NOTE

• Do not use such as gasoline, benzine, thinner,
polishing powder and liquid insecticide sold
in the market.
It may cause discoloration and deformation.

• Do not wash the filter with warm water of 50°C
or higher. It may cause discoloration and
deformation.

 CLEANING BEFORE AND AFTER SEA-

SONAL USE

WHAT TO DO WHEN START UP AFTER A
LONG STOP

When the suction grille is extremely contaminated

• Spray the detergent for a ventilating fans and

ranges directly to the grille, and keep them under
that condition for about 10 minutes.
After that, carefully wash the suction grille with
water.

NOTE

• Do not wash the suction grille with water of
50°C or higher.
It may cause discoloration and deformation.

• When drying the suction grille, do not heat it
with fire. It may cause burning.

• Do not use such as gasoline, benzine, thinner,
polishing powder and liquid insecticide sold
in the market.
It may cause discoloration and deformation.

5. Attach the air filter.
Refer to the Clause 4 for “HOW TO CLEAN THE
AIR FILTER”. (page 10)

6. Attach the suction grille.

Attach the grille in the reverse order mentioned
in the Clause 2.

11 English

Detergent

Confirm the following

• Check that the air inlet and outlet of indoor and

outdoor unit are not blocked.
Remove any obstacle.
Obstacles decrease the fan speed, and cause
performance decrease and breakage of the
devices.

Clean the air filter

• After cleaning the air filter, make sure to attach it.
(Refer to “8. MAINTENANCE” on page 9.)

• For information on how to install, remove, or clean

a optional sold air filter, refer to the user’s manual
attached to the air filter.

• Turn off the indication “ ” or “Time to clean fil-
ter” displayed on the remote controller after turn­ing on the power.
The indication can be turned off whether in oper­ation or at stop.

<In case of BRC1E, BRC1D>

• For details, refer to the operation manual

attached to the remote controller.

<In case of BRC1C>

• Press FILTER SIGN RESET button.

Turn on the power circuit breaker at least 6
hours before operation.

• This is required in order to activate the air condi-

tioner smoothly, and to protect air conditioner.

• The display on the remote controller will be shown
when the power circuit breaker is turned on.

HEATING OPERATION within 6 hours after the
power is supplied to the air conditioner.

• Some models perform the following operation to

protect the devices.
If the HEATING OPERATION is performed within
6 hours after the power is supplied to the air con­ditioner, the indoor fan stops for about 10 minutes
during the outdoor unit operation to protect the
devices.
The above operation is performed not only at the
time of installation, but every time the power cir­cuit breaker is turned off/on.
For comfortable use, do not turn off the power cir­cuit breaker during seasonal use of the HEATING
OPERATION.

WHAT TO DO TO STOP THE AIR CONDI­TIONER FOR A LONG PERIOD

Turn on FAN OPERATION for a half day on the
fine day and dry the indoor unit.

• This can prevent the causes of mould.

Turn off the power circuit breaker.

• During the power circuit breaker is turned on,

some watts of electricity is being used even if the
air conditioner is not operating.
Turn off the power circuit breaker for saving
energy.

• The display on the remote controller will vanish

when the power circuit breaker is turned off.

Clean the air filter and outside panel

• Be sure to replace the air filter to its original place

after cleaning. (Refer to “8. MAINTENANCE” on
page 9.)
For information on how to install, remove, or clean
an optional sold air filter, refer to the user’s manual
attached to the air filter.

NOTE

The inside of the air conditioner may become con­taminated after several seasons of use, potentially
causing performance degradation and water leak­age.
Ask your local dealer for details on cleaning the
inside of the indoor unit. This operation requires a
qualified service person.

9. NOT MALFUNCTION OF THE AIR CONDITIONER

9-1. FHQ

The following symptoms do not indicate air con­ditioner malfunction

• HEATING OPERATION within 6 hours after the

power is supplied to the air conditioner.
Some models perform the following operation to
protect the devices.
If the HEATING OPERATION is performed within 6
hours after the power is supplied to the air condi­tioner, the indoor fan stops for about 10 minutes dur­ing the outdoor unit operation to protect the devices.
The above operation is performed not only at the
time of installation, but every time the power cir­cuit breaker is turned off/on.
For comfort heating, it is recommended not to turn
off the power circuit breaker during the HEATING
OPERATION.

THE AIR CONDITIONER DOES NOT OPERATE

I.

•

The air conditioner does not restart imme­diately after the ON/OFF button is pressed.

• The air conditioner does not restart
immediately when TEMPERATURE SET­TING button is returned to the former
position after pushing the button.

If the OPERATION lamp lights, the air condi­tioner is in normal condition.
It does not restart immediately because a
safety device operates to prevent overload of
the air conditioner.
After approx. 3 minutes, the air conditioner
will turn on again automatically.

• The air conditioner does not start when
the display shows “ ” and it
flashes for few seconds after pressing an
operation button.

This is because the air conditioner is under
centralized control.
Flashes on the display indicates that the air
conditioner cannot be controlled by the
remote controller.

• HEATING OPERATION within 6 hours
after the power is supplied to the air con­ditioner.

Some models perform the following opera­tion to protect the devices.
If the HEATING OPERATION is performed
within 6 hours after the power is supplied to
the air conditioner, the indoor fan stops for
about 10 minutes during the outdoor unit
operation to protect the devices.
The above operation is performed not only at
the time of installation, but every time the
power circuit breaker is turned off/on.

English 12

For comfortable use, do not turn off the
power circuit breaker during seasonal use of
the HEATING OPERATION.

• The outdoor unit stops.

This is because the indoor temperature has
reached the set temperature.
The indoor unit is in the FAN OPERATION.

COOLING OPERATION
(AUTOMATIC COOLING OPERATION):
Lower the set temperature.
HE ATING O PE RAT IO N
(AUTOMATIC HEATING OPERATION):

Raise the set temperature.
The operation starts after a while when the
air conditioner is in normal condition.

• The remote controller displays “ ”,
and airflow stops.

This is because the air conditioner automati­cally switches to the DEFROST OPERATION
to prevent a decrease in heating capacity
when frost on the outdoor unit increases.
After maximum 10 minutes, the air condi­tioner returns to its original operation.

II. THE OPERATION SOMETIMES STOPS

• The remote controller displays “U4” and
“U5”, and the operation stops. However, it
will restart in a few minutes.

This is because communication between the
indoor and outdoor units or indoor units and
remote controllers is shut off and stops the
operation due to noise caused by devices
other than the air conditioner.
When the electrical noise decreases, the air
conditioner automatically restarts.

III. THE FAN SPEED IS DIFFERENT FROM THE

SETTING

• Pressing the fan speed control button
does not change the fan speed.

During the COOLING OPERATION, the low
fan speed or a gentle wind is used to prevent
the discharge of melt water.
During the DEFROST OPERATION (HEAT­ING OPERATION), the wind from the air con­ditioner stops to prevent air discharge
directly toward your body.
After a while, the fan speed can be changed.
(The fan speed cannot be set for the PRO­GRAM DRY OPERATION.)
When the room temperature reaches the set
temperature during the HEATING OPERA­TION, the outdoor unit stops and the indoor
unit goes into gentle wind.
It takes some time until the fan speed
changes. Raise the set temperature. After a
while, the fan speed changes.

IV. THE AIRFLOW DIRECTION IS DIFFERENT

FROM THE SETTING, OR THE AIRFLOW
DIRECTION IS DIFFERENT FROM THE DIS­PLAY ON THE REMOTE CONTROLLER

• The horizontal blades do not swing when
the remote controller displays the swing
operation.

<HEATING OPERATION>

This is because the airflow direction is con­trolled so it is horizontal direction after the
operation starts or when the indoor temper­ature is higher than the set temperature to
prevent air discharge directly toward your
body.
After a while, the swing operation starts.
(Refer to “MOVEMENT OF THE HORIZON-

TAL BLADE” page 8.)

• The airflow direction display of the
remote controller differs from the actual
operation of the horizontal blades.

<COOL AND PROGRAM DRY OPERATIONS>

When the operation in a downward airflow
direction is set, the airflow direction differs
from the display for a period of time to pre­vent condensation on the horizontal blades.

<HEATING OPERATION>

This is because the airflow direction is con­trolled so it is horizontal direction after the
operation starts or when the indoor temper­ature is higher than the set temperature to
prevent air discharge directly toward your
body.
After a while, the airflow direction changes
to the set direction.
(Refer to “MOVEMENT OF THE HORIZON-

TAL BLADE” page 8.)

V. HORIZONTAL BLADES DO NOT CLOSE

• The horizontal blades do not close even
when operation stops.

This is because the horizontal blades close
once airflow from the air conditioner stops.
After a while, the horizontal blades close.

VI. WHITE MIST COMES OUT OF THE AIR CON-

DITIONER

• When humidity is high during the COOL­ING OPERATION (In oily or dusty places)

If the inside of an indoor unit is extremely
contaminated, the temperature distribution
inside a room becomes uneven. It is neces­sary to clean the inside of the indoor unit.
Ask your local dealer for details on cleaning
the indoor unit.
This cleaning requires a qualified service
person.
Check the usage environment.

13 English

• When the air conditioner is changed over

Ta b

Trip position

Power circuit breaker
(Earth leakage breaker)

ON

OFF

to the HEATING OPERATION after the
DEFROST OPERATION and in the
DEFROST OPERATION.

Moisture generated by defrost becomes
steam and will float around.
When the remote controller display shows
“ ”, DEFROST OPERATION is being
used.

VII. NOISE OF AIR CONDITIONERS

• A ringing sound after the indoor unit
starts.

This sound is generated when the motors for
driving the horizontal blades are working.
It will quiet down after about a minute.

• A low continuous flow “Shuh” sound
which is heard when the air conditioner is
in the COOLING or DEFROST OPERA­TION or a trickling sound which is heard
when the air conditioner is in the
DEFROST OPERATION.

This is the sound of refrigerant gas flowing
through both indoor and outdoor units.

• A “Shuh” sound which is heard at the
start or immediately after the stop of
operation or which is heard at the start or
immediately after the stop of the
DEFROST OPERATION.

This is the noise of refrigerant caused by flow
stop and flow change.
During the HEATING OPERATION, the air
conditioner switches to the DEFROST
OPERATION automatically.

The remote controller shows “ ”.
After maximum 10 minutes, the air condi­tioner returns to its original operation.

• A “Pishi-pishi” squeaking sound is heard
when the air conditioner is in operation or
after the stop of operation.

Expansion and contraction of resin parts
caused by temperature change makes this
noise.

VIII. DUST FROM THE INDOOR UNITS

• Dust may blow out from the unit after
starting operation from long resting time.

Dust absorbed by the unit blows out.

IX. THE INDOOR UNITS GIVE OFF ODORS

• During operation

The unit absorbs the smell of rooms, furni­ture, cigarettes, etc., and then emits them.
If odor is a concern, you can set to zero fan
speed when the indoor temperature reaches
the set temperature.
For details, contact your local dealer.

English 14

X. THE AIR CONDITIONER DOES NOT COOL

EFFECTIVELY

The air conditioner is operating in the

•
PROGRAM DRY OPERATION.

This is because program dry mode operates
so that the indoor temperature decreases as
little as possible.
Lower the indoor temperature using the
COOLING OPERATION, and then use the
PROGRAM DRY OPERATION.
(Refer to “CHARACTERISTICS OF THE

PROGRAM DRY OPERATION” on page 7.)

• Read through characteristics of the
COOLING OPERATION, characteristics of
the HEATING OPERATION, and character­istics of the PROGRAM DRY OPERATION
on page 6-7.

9-2. FXHQ

Read the operation manual that attached to the
outdoor unit.

10. TROUBLE SHOOTING

10-1. FHQ
Please check before requesting a service.

1. If the air conditioner does not operate at all.

• Check if fuse has blown.

Turn off the power supply.

• Check if the power circuit breaker is blown.

If the tab of power circuit breaker is in the OFF
position, turn the power on with the power cir­cuit breaker switch.
If the tab of power circuit breaker is in the trip
position do not turn the power on with the
power circuit breaker switch.
Contact your local dealer.

• Check if there is a power failure.

Wait until power is restored. If power failure
occurs during operation, the air conditioner
automatically restarts immediately after the
power supply recovers.

2. If the air conditioner stops after operating the

WARNING

air conditioner.

• Check if the air inlet or outlet of outdoor or

indoor unit is blocked by obstacles.
Remove the obstacle and make it well-venti­lated.
The horizontal blades at the air outlet are
closed while the indoor stops.

• Check if the air filter is clogged.

Ask a qualified service person to clean the air
filters.
A decrease in the airflow volume of the air
conditioner will result and the performance of
the air conditioner will be degraded and power
consumption will increase if the air filter is
clogged with dust or dirt.
In addition, this may cause dew condensation
at the air outlet.
(Refer to “8. MAINTENANCE” on page 9.)

3. The air conditioner operates but it does not
sufficiently cool or heat.

• Check if the air inlet or outlet of outdoor or

indoor unit is blocked by obstacles.
Remove the obstacle and make it well-venti­lated.
The horizontal blades at the air outlet are
closed while the unit stops.
Obstacles decrease the fan speed, and cause
performance decrease and breakage when
discharged air is suctioned.
They cause a waste of electricity, and that may
stop the devices.

• Check if the air filter is clogged.

Ask a qualified service person to clean the air
filters.
A decrease in the airflow volume of the air
conditioner will result and the performance of
the air conditioner will be degraded and power
consumption will increase if the air filter is
clogged with dust or dirt.
In addition, this may cause dew condensation
at the air outlet.
(Refer to “8. MAINTENANCE” on page 9.)

• Check if the set temperature is not proper.

Set to an appropriate temperature, fan speed,
and discharge direction.

• Check if the FAN SPEED button is set to LOW

SPEED.
Set to an appropriate temperature, fan speed,
and discharge direction.

• Check if the airflow direction is not proper.

Set to an appropriate temperature, fan speed,
and discharge direction.

• Check if the doors or the windows are open.

Shut doors or windows to prevent wind from
coming in.

• Check

cooling).
Use curtains or blinds.

• When there are too many inhabitants in the

room (when cooling).

• Check if the heat source of the room is exces-

sive (when cooling).

4. Operation was performed or stopped
although the ON/OFF button was not
pressed.

• Are you sure that the ON/OFF timer operation

is not used?
Turn off the ON/OFF timer.
Please refer to operation manual attached to
the remote controller.

• Are you sure that any remote control device is

not connected?
Contact the central control room that directed
the stop.

• Are you sure that the display for centralized

control is not lit?
Contact the central control room that directed
the stop.

If the problem is not solved after checking the
above points, please do not try to repair it
yourself.
In such cases, always ask your local dealer.
At this time, please tell the symptom and
model name (written on the model name
plate).

If one of the following malfunctions occurs, take
the measures shown below and contact your
local dealer.

The air conditioner must be repaired by a qualified
service person.

When the air conditioner is malfunctioning
(giving off a burning odor, etc.), turn off
power to the air conditioner and contact your
local dealer.

Continued operation under such circumstances
may result in a failure, electric shocks or a fire.
Contact your local dealer.

• If a safety device such as a fuse, a power circuit

breaker or an earth leakage breaker frequently
actuates;

Measure: Do not turn on the main power switch.

• If the ON/OFF switch does not properly work;

Measure: Turn off the main power switch.

• If water leaks from the indoor unit.

Measure: Stop the operation.

if direct sunlight enters the room (when

15 English

• If the display “ ”, “UNIT No.”, and the OPERA-

UNIT No.

C

L H

OPERATION lamp

INSPECTION
display

MALFUNCTION CODE

INDOOR UNIT No. in
which a malfunction occurs

TION lamp flash and the “MALFUNCTION
CODE” appears. (In case of BRC1C, BRC1D)

Measure: Notify your local dealer and inform

malfunction code of the display.

10-2. FXHQ

Read the operation manual attached to the out­door unit.

English 16

3P303408-6Q EM15A026

(1602) HT