Daikin FXFQ25P7VEB user guide manual

INSTALLATION AND

OPERATION MANUAL

System air conditioners

FXFQ20P7VEB
FXFQ25P7VEB
FXFQ32P7VEB
FXFQ40P7VEB
FXFQ50P7VEB
FXFQ63P7VEB
FXFQ80P7VEB
FXFQ100P7VEB
FXFQ125P7VEB

1500

1500

5

35 35

3

5

5

300 mm

00

5

6

5+10

9

5

0

1 2

1 2

3

4

3 4

5

1
2

3

50 - 100

4
5

5

6

1

3

2

4

6

7

1~1.5 m

2

8

3 124

~7

4

3

≤675

≤850

175

6

5

87

9

0~675 mm

≥ 100 mm

1

1

9

11

10

5

4

3

1

≥100

2

1

2

11

12

mm

~1

10 12

1

2

2

.

ATITIKTIES-DEKLARACIJA

ATBILSTĪBAS-DEKLARĀCIJA

VYHLÁSENIE-ZHODY

CE -

CE -

CE -

CE - UYUMLULUK-BİLDİRİSİ

ZJAVA O SKLADNOSTI

VASTAVUSDEKLARATSIOON

ДЕКЛАРАЦИЯ-ЗА-СЪОТВЕТСТВИЕ

CE - I

CE -

CE -

z vso odgovornostjo izjavlja, da so modeli klimatskih naprav, na katere se izjava nanaša:

o

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Direktive z vsemi spremembami.

Direktiivid koos muudatustega.

Директиви, с техните изменения.

Direktyvose su papildymais.

Direktīvās un to papildinājumos.

Smernice, v platnom znení.

Değiştirilmiş halleriyle Yönetmelikler.

Direktiver, med senere ændringer.

Direktiv, med företagna ändringar.

Direktiver, med foretatte endringer.

Direktiivejä, sellaisina kuin ne ovat muutettuina.

v platném znění.

Smjernice, kako je izmijenjeno.

irányelv(ek) és módosításaik rendelkezéseit.

z późniejszymi poprawkami.

kinnitab oma täielikul vastutusel, et käesoleva deklaratsiooni alla kuuluvad kliimaseadmete mudelid:

декларира на своя отговорност, че моделите климатична инсталация, за които се отнася тази декларация:

visiška savo atsakomybe skelbia, kad oro kondicionavimo prietaisų modeliai, kuriems yra taikoma ši deklaracija:

ar pilnu atbildību apliecina, ka tālāk uzskaitīto modeĮu gaisa kondicionētāji, uz kuriem attiecas šī deklarācija:

vyhlasuje na vlastnú zodpovednosť, že tieto klimatizačné modely, na ktoré sa vzťahuje toto vyhlásenie:

tamamen kendi sorumluluğunda olmak üzere bu bildirinin ilgili olduğu klima modellerinin aşağıdaki gibi olduğunu beyan eder:

x

b

t

v

k

w

megfelelnek az alábbi szabvány(ok)nak vagy egyéb irányadó dokumentum(ok)nak, ha azokat előírás szerint használják:

spełniają wymogi następujących norm i innych dokumentów normalizacyjnych, pod warunkiem że używane są zgodnie z naszymi

instrukcjami:

sunt în conformitate cu următorul (următoarele) standard(e) sau alt(e) document(e) normativ(e), cu condiţia ca acestea să fie utilizate în

conformitate cu instrucţiunile noastre:

skladni z naslednjimi standardi in drugimi normativi, pod pogojem, da se uporabljajo v skladu z našimi navodili:

on vastavuses järgmis(t)e standardi(te)ga või teiste normatiivsete dokumentidega, kui neid kasutatakse vastavalt meie juhenditele:

съответстват на следните стандарти или други нормативни документи, при условие, че се използват съгласно нашите

инструкции:

atitinka žemiau nurodytus standartus ir (arba) kitus norminius dokumentus su sąlyga, kad yra naudojami pagal mūsų nurodymus:

tad, ja lietoti atbilstoši ražotāja norādījumiem, atbilst sekojošiem standartiem un citiem normatīviem dokumentiem:

sú v zhode s nasledovnou(ými) normou(ami) alebo iným(i) normatívnym(i) dokumentom(ami), za predpokladu, že sa používajú v súlade

s našim návodom:

ürünün, talimatlarımıza göre kullanılması koşuluyla aşağıdaki standartlar ve norm belirten belgelerle uyumludur:

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*

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. 07

*

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.

съгласно

în conformitate cu

TNO

TNO

järgi vastavalt

TNO

v skladu s

şi apreciate pozitiv de

TNO

DAIKIN.TCF.024

in odobreno s strani

TNO pagal

и оценено положително от

ja heaks kiidetud

ir patvirtinta

DAIKIN.TCF.024

DAIKIN.TCF.024

DAIKIN.TCF.024

DAIKIN.TCF.024

Directivelor, cu amendamentele respective.

0510260101

0510260101

0510260101

0510260101

sertifikāts 0510260101.

conform celor stabilite în Dosarul tehnic de construcţie

Certificatul

kot je določeno v tehnični mapi

certifikatom

nagu on näidatud tehnilises dokumentatsioonis

sertifikaadile

както е заложено в Акта за техническа конструкция

Сертификат

kaip nurodyta Techninėje konstrukcijos byloje

Notă *

18

19 Opomba *

20 Märkus

21 Забележка *

22 Pastaba *

Certifikátu 0510260101.

pažymėjimą 0510260101.

* DAIKIN.TCF.024 Teknik Yapı Dosyasında belirtildiği gibi ve 0510260101 sertifikasına göre TNO tarafından olumlu olarak

Not

23 Piezīmes * kā noteikts tehniskajā dokumentācijā DAIKIN.TCF.024, atbilstoši TNO pozitīvajam lēmumam ko apliecina

24 Poznámka * ako je to stanovené v Súbore technickej konštrukcie DAIKIN.TCF.024 a kladne posúdené TNO podľa

25

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i

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*

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değerlendirilmiştir.

Zandvoordestraat 300, B-8400 Oostende, Belgium

IZJAVA-O-USKLAĐENOSTI

DEKLARACJA-ZGODNOŚCI

DECLARAŢIE-DE-CONFORMITATE

CE - MEGFELELŐSÉGI-NYILATKOZAT

CE -

CE -

CE -

PROHLÁŠENÍ-O-SHODĚ

CE - ERKLÆRING OM-SAMSVAR

CE - ILMOITUS-YHDENMUKAISUUDESTA

CE -

prohlašuje ve své plné odpovědnosti, že modely klimatizace, k nimž se toto prohlášení vztahuje:

izjavljuje pod isključivo vlastitom odgovornošću da su modeli klima uređaja na koje se ova izjava odnosi:

teljes felelőssége tudatában kijelenti, hogy a klímaberendezés modellek, melyekre e nyilatkozat vonatkozik:

deklaruje na własną i wyłączną odpowiedzialność, że modele klimatyzatorów, których dotyczy niniejsza deklaracja:

erklærer under eneansvar, at klimaanlægmodellerne, som denne deklaration vedrører:

deklarerar i egenskap av huvudansvarig, att luftkonditioneringsmodellerna som berörs av denna deklaration innebär att:

erklærer et fullstendig ansvar for at de luftkondisjoneringsmodeller som berøres av denne deklarasjon innebærer at:

ilmoittaa yksinomaan omalla vastuullaan, että tämän ilmoituksen tarkoittamat ilmastointilaitteiden mallit:

q

s

n

j

c

11

12

13

10

CE - DECLARAÇÃO-DE-CONFORMIDADE СЕ - ЗАЯВЛЕНИЕ-О-СООТВЕТСТВИИ

CE - OPFYLDELSESERKLÆRING

CE - FÖRSÄKRAN-OM-ÖVERENSTÄMMELSE

CE - ¢H§ø™H ™YMMOPºø™H™

CE - DECLARACION-DE-CONFORMIDAD

CE - DICHIARAZIONE-DI-CONFORMITA

declară pe proprie răspundere că aparatele de aer condiţionat la care se referă această declaraţie:

y

h

m

r

17

estão em conformidade com a(s) seguinte(s) norma(s) ou outro(s) documento(s) normativo(s), desde que estes sejam utilizados de

acordo com as nossas instruções:

соответствуют следующим стандартам или другим нормативным документам, при условии их использования согласно нашим

инструкциям:

overholder følgende standard(er) eller andet/andre retningsgivende dokument(er), forudsat at disse anvendes i henhold til vore

instrukser:

respektive utrustning är utförd i överensstämmelse med och följer följande standard(er) eller andra normgivande dokument, under

förutsättning att användning sker i överensstämmelse med våra instruktioner:

respektive utstyr er i overensstemmelse med følgende standard(er) eller andre normgivende dokument(er), under forutssetning av at

disse brukes i henhold til våre instrukser:

vastaavat seuraavien standardien ja muiden ohjeellisten dokumenttien vaatimuksia edellyttäen, että niitä käytetään ohjeidemme

mukaisesti:

za předpokladu, že jsou využívány v souladu s našimi pokyny, odpovídají následujícím normám nebo normativním dokumentům:

u skladu sa slijedećim standardom(ima) ili drugim normativnim dokumentom(ima), uz uvjet da se oni koriste u skladu s našim uputama:

Directives, as amended.

Direktiven, gemäß Änderung.

Directives, telles que modifiées.

Richtlijnen, zoals geamendeerd.

Directivas, según lo enmendado.

Direttive, come da modifica.

√‰ËÁÈÒv, fiˆ˜ ¤¯Ô˘Ó ÙÚÔÔÔÈËı›.

Directivas, conforme alteração em.

Директив со всеми поправками.

Low Voltage 73/23/EEC

Machinery Safety 98/37/EEC

Electromagnetic Compatibility 89/336/EEC *

ob upoštevanju določb:

vastavalt nõuetele:

следвайки клаузите на:

laikantis nuostatų, pateikiamų:

ievērojot prasības, kas noteiktas:

održiavajúc ustanovenia:

bunun koşullarına uygun olarak:

under iagttagelse af bestemmelserne i:

enligt villkoren i:

gitt i henhold til bestemmelsene i:

noudattaen määräyksiä:

za dodržení ustanovení předpisu:

prema odredbama:

követi a(z):

zgodnie z postanowieniami Dyrektyw:

în urma prevederilor:

vilket också

ifølge

TNO

TNO

i henhold

som positivt intygas av

TNO

og gjennom positiv bedømmelse av

on hyväksynyt

DAIKIN.TCF.024

TNO

og positivt vurderet af

DAIKIN.TCF.024

Certifikat 0510260101

som anført i den Tekniske Konstruktionsfil

til

10 Bemærk *

DAIKIN.TCF.024

0510260101

Certifikat

utrustningen är utförd i enlighet med den Tekniska Konstruktionsfilen

som det fremkommer i den Tekniske Konstruksjonsfilen

Sertifikat 0510260101

framgår av

11 Information *

12 Merk *

ja jotka

DAIKIN.TCF.024

mukaisesti.

0510260101

jotka on esitetty Teknisessä Asiakirjassa

Sertifikaatin

13 Huom *

conformément au

TNO

overeenkomstig

according to

TNO

TNO

positiv ausgezeichnet gemäß

TNO

et jugé positivement par

en in orde bevonden door

and judged positively by

aufgeführt und von

DAIKIN.TCF.024

DAIKIN.TCF.024

DAIKIN.TCF.024

DAIKIN.TCF.024

prema

TNO

v souladu

TNO

TNO

igazolta a megfelelést

TNO

, pozytywną opinią

i pozitivno ocijenjeno od strane

a pozitivně zjištěno

DAIKIN.TCF.024

DAIKIN.TCF.024

DAIKIN.TCF.024

szerint.

műszaki konstrukciós dokumentáció alapján, a(z)

tanúsítvány

0510260101

osvědčením

s

jak bylo uvedeno v souboru technické konstrukce

kako je izloženo u Datoteci o tehničkoj konstrukciji

14 Poznámka *

15 Napomena *

0510260101

0510260101

DAIKIN.TCF.024

0510260101

Świadectwem

Certifikatu

a(z)

zgodnie z archiwalną dokumentacją konstrukcyjną

a(z)

16 Megjegyzés *

17 Uwaga *

Jiro Tomita

Director Quality Assurance

Ostend, 1st of February 2007

TNO

Û‡Ìʈӷ Ì ÙÔ

según el

TNO

de acordo com o

TNO

TNO

secondo

TNO

Î·È ÎÚ›ÓÂÙ·È ıÂÙÈο ·fi ÙÔ

y juzgado positivamente por

e com o parecer positivo de

и в соответствии с положительным решением

DAIKIN.TCF.024

DAIKIN.TCF.024

e giudicato positivamente da

DAIKIN.TCF.024

DAIKIN.TCF.024

DAIKIN.TCF.024

0510260101

declares under its sole responsibility that the air conditioning models to which this declar ation relates:

erklärt auf seine alleinige Verantwortung daß die Modelle der Klimageräte für die diese Erklärung bestimmt ist:

déclare sous sa seule responsabilité que les appareils d'air conditionné visés par la présente déclar ation:

verklaart hierbij op eigen exclusieve verantwoordelijkheid dat de airconditioning units waarop deze verklaring betrekking heeft:

declara baja su única responsabilidad que los modelos de aire acondicionado a los cuales hace referencia la declaración:

f

03

l

04

e

05

dichiara sotto sua responsabilità che i condizionatori modello a cui è riferita questa dichiarazione:

i

06

a

CE - DECLARATION-OF-CONFORMITY

CE - KONFORMITÄTSERKLÄRUNG

CE - DECLARATION-DE-CONFORMITE

CE - CONFORMITEITSVERKLARING

d

Daikin Europe N.V.

01

02

0510260101

0510260101

0510260101

Certificate

as set out in the Technical Construction File

the

wie in der Technischen Konstruktionsakte

Zertifikat

tel que stipulé dans le Fichier de Construction Technique

Certificat

zoals vermeld in het Technisch Constructiedossier

Certificaat 0510260101

tal como se expone en el Archivo de Construcción Técnica

‰ЛПТУВИ МВ ·ФОПВИЫЩИО‹ ЩЛ˜ В˘ı‡УЛ fiЩИ Щ· МФУЩ¤П· ЩˆУ ОПИМ·ЩИЫЩИОТУ Ы˘ЫОВ˘ТУ ЫЩ· ФФ›· ·У·К¤ЪВЩ·И Л ·ЪФ‡Ы· ‰‹ПˆЫЛ:

заявляет, исключительно под свою ответственность, что модели кондиционеров воздуха, к которым относится настоящее заявление:

declara sob sua exclusiva responsabilidade que os modelos de ar condicionado a que esta declaração se refere:

g

p

07

08

u

09

FXFQ20P7VEB*, FXFQ25P7VEB*, FXFQ32P7VEB*, FXFQ40P7VEB*, FXFQ50P7VEB*, FXFQ63P7VEB*,

FXFQ80P7VEB*, FXFQ100P7VEB*, FXFQ125P7VEB*,

* = , , 1, 2, 3, ..., 9

are in conformity with the following standard(s) or other normative document(s), provided that these are used in accordance with our

instructions:

der/den folgenden Norm(en) oder einem anderen Normdokument oder -dokumenten entspricht/entsprechen, unter der Voraussetzung,

daß sie gemäß unseren Anweisungen eingesetzt werden:

sont conformes à la/aux norme(s) ou autre(s) document(s) nor matif(s), pour autant qu'ils soient utilisés conformément à nos instructions:

conform de volgende norm(en) of één of meer andere bindende documenten zijn, op voorwaarde dat ze worden gebruikt overeenkomstig

onze instructies:

están en conformidad con la(s) siguiente(s) norma(s) u otro(s) documento(s) nor mativo(s), siempre que sean utilizados de acuerdo con

nuestras instrucciones:

sono conformi al(i) seguente(i) standard(s) o altro(i) documento(i) a carattere normativo, a patto che vengano usati in conformità alle

nostre istruzioni:

В›У·И Ы‡МКˆУ· МВ ЩФ(·) ·ОfiПФ˘ıФ(·) ЪfiЩ˘Ф(·) ‹ ¿ППФ ¤ББЪ·КФ(·) О·УФУИЫМТУ, ˘fi ЩЛУ ЪФ¸fiıВЫЛ fiЩИ ¯ЪЛЫИМФФИФ‡УЩ·И

Û‡Ìʈӷ Ì ÙȘ Ô‰ËÁ›Â˜ Ì·˜:

following the provisions of:

gemäß den Vorschriften der:

conformément aux stipulations des:

overeenkomstig de bepalingen van:

EN60335-2-40,

siguiendo las disposiciones de:

secondo le prescrizioni per:

Ì ًÚËÛË Ùˆv ‰È·Ù¿Íˆv Ùˆv:

de acordo com o previsto em:

в соответствии с положениями:

01 Note *

02 Hinweis *

03 Remarque *

04 Bemerk *

05 Nota

0510260101

0510260101

Certificato

il

Certificado 0510260101

delineato nel File Tecnico di Costruzione

fiˆ˜ ÚÔÛ‰ÈÔÚ›˙ÂÙ·È ÛÙÔ ∞Ú¯Â›Ô ∆¯ÓÈ΋˜ ∫·Ù·Û΢‹˜

¶ИЫЩФФИЛЩИОfi

™ËÌ›ˆÛË

06 Nota *

0510260101

tal como estabelecido no Ficheiro Técnico de Construção

Certificado

как указано в Досье технического толкования

08 Nota

09 Примечание *

Свидетельству

согласно

3PW33501-1

FXFQ20P7VEB FXFQ40P7VEB FXFQ80P7VEB
FXFQ25P7VEB FXFQ50P7VEB FXFQ100P7VEB
FXFQ32P7VEB FXFQ63P7VEB FXFQ125P7VEB

VRV System air conditioners

Installation

and operation manual

CONTENTS Page

Before installation.............................................................................. 1

Selecting installation site................................................................... 2

Preparations before installation......................................................... 2

Indoor unit installation .......................................................................3

Refrigerant piping work .....................................................................3

Drain piping work .............................................................................. 5

Electric wiring work ........................................................................... 6

Wiring example and how to set the remote controller ....................... 6

Wiring example ................................................................................. 7

Installation of the decoration panel ................................................... 7

Field setting....................................................................................... 7

Test operation.................................................................................... 9

Maintenance...................................................................................... 9

Disposal requirements .................................................................... 10

Wiring diagram ................................................................................ 11

READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION. KEEP THIS MANUAL IN A HANDY
PLACE FOR FUTURE REFERENCE.

IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.

IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DAIKIN DEALER FOR ADVICE
AND INFORMATION.

BEFORE INSTALLATION

■ Leave the unit inside its packaging until you reach the
installation site. Where unpacking is unavoidable, use a sling of
soft material or protective plates together with a rope when
lifting, this to avoid damage or scratches to the unit.

■ Refer to the installation manual of the outdoor unit for items not
described in this manual.

■ Caution concerning refrigerant series R410A:
The connectable outdoor units must be designed exclusively for

R410A.

■ 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 fire when making contact with electrical parts.

Precautions

■ Do not install or operate the unit in rooms mentioned below.

• Places with mineral oil, or filled with oil vapour or spray like in
kitchens. (Plastic parts may deteriorate.)

• Where corrosive gas like sulphurous gas exists. (Copper tubing
and brazed spots may corrode.)

• Where volatile flammable gas like thinner or gasoline is used.

• Where machines generating electromagnetic waves exist.
(Control system may malfunction.)

• Where the air contains high levels of salt such as air near the
ocean and where voltage fluctuates a lot (e.g. in factories). Also
in vehicles or vessels.

■ When selecting the installation site, use the supplied paper
pattern for installation.

■ Do not install accessories on the casing directly. Drilling holes in the
casing may damage electrical wires and consequently cause fire.

Accessories

Check if the following accessories are included with your unit.

123 546

1x 1x 8x 4x 1x 1x

78 9 111210 13

1x 1x 1x 1x1x1x 1x

1 Metal clamp
2 Drain hose
3 Washer for hanger bracket
4 Screw
5 Installation guide
6 Installation and operation manual
7 Insulation for fitting for gas pipe
8 Insulation for fitting for liquid pipe

9 Large sealing pad
10 Medium 1 sealing pad
11 Medium 2 sealing pad
12 Small sealing pad
13 Drain sealing pad
14 Paper pattern for installation (upper part of packing)

14

1x

Optional accessories

■ There are two types of remote controllers: wired and wireless.
Select a remote controller according to customers request and
install in an appropriate place.
Refer to catalogues and technical literature for selecting a
suitable remote controller.

■ This indoor unit requires installation of an optional decoration
panel.

Installation and operation manual

1

FXFQ20~125P7VEB

VRV System air conditioners

4PW31578-1B

For the following items, take special care during
construction and check after installation is finished

Tick ✓

when

checked

Is the indoor unit fixed firmly?

■

■

■

■

■

■

■

■

■

■

The unit may drop, vibrate or make noise.

Is the gas leak test finished?

It may result in insufficient cooling or heating.

Is the unit fully insulated?

Condensate water may drip.

Does drainage flow smoothly?

Condensate water may drip.

Does the power supply voltage correspond to that shown on the
name plate?

The unit may malfunction or components may burn out.

Are wiring and piping correct?

The unit may malfunction or components may burn out.

Is the unit safely grounded?

Dangerous at electric leakage.

Is the wiring size according to specifications?

The unit may malfunction or components may burn out.

Is nothing blocking the air outlet or inlet of either the indoor or
outdoor units?

It may result in insufficient cooling or heating.

Are refrigerant piping length and additional refrigerant charge
noted down?

The refrigerant charge in the system might not be clear.

• When installing the wireless remote controller kit, the distance
between wireless remote controller and indoor unit might be
shorter if there are fluorescent lights who are electrically started
in the room. The indoor unit must be installed as far as possible
away from fluorescent lights.

2 Ceiling height

This indoor unit may be installed on ceilings up to 3.5 m in height
(for 125 units: 4.2 m). However, it becomes necessary to make
field settings by the remote controller when installing the unit at
a height over 2.7 m (for 125 units: 3.2 m). To avoid accidental
touching, it is recommended to install the unit higher than 2.5 m.
Refer to "Field setting" on page 7 and to the decoration panel
installation manual.

3 Air flow directions

Select the air flow directions best suited to the room and point of
installation. (For air discharge in 2 or 3 directions, it is necessary
to make field settings by means of the remote controller and to
close the air outlet(s). Refer to the installation manual of the
optional blocking pad kit and to "Field setting" on page 7.) (See

figure 1 ( = air flow direction))

1 All round air discharge
2 Air discharge in 4 directions
3 Air discharge in 3 directions
4 Air discharge in 2 directions

Notes to the installer

■ Read this manual carefully to ensure correct installation. Be sure
to instruct the customer how to properly operate the system and
show him/her the enclosed operation manual.

■ Explain to the customer what system is installed on the site. Be
sure to fill out the appropriate installation specifications in the
chapter "What to do before operation" of the outdoor unit
operation manual.

SELECTING INSTALLATION SITE

When the conditions in the ceiling are exceeding 30°C and a relative
humidity of 80%, or when fresh air is inducted into the ceiling, an
additional insulation is required (minimum 10 mm thickness,
polyethylene foam).

For this unit you can select different air flow directions. It is necessary
to purchase an optional blocking pad kit to discharge the air in 2 or 3
directions.

1 Select an installation site where the following conditions

are fulfilled and that meets your customer's approval.

• Where optimum air distribution can be ensured.

• Where nothing blocks air passage.

• Where condensate water can be properly drained.

• Where the false ceiling is not noticeably on an incline.

• Where sufficient clearance for maintenance and service can be

ensured.

• Where there is no risk of flammable gas leaking.

• Where piping between indoor and outdoor units is possible within

the allowable limit. (Refer to the installation manual of the outdoor
unit.)

• 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.

•Keep indoor unit, outdoor unit, inter unit wiring and remote

controller at least 1 meter away from televisions and radios. This
is to prevent image interference and noise in those electrical
appliances.
(Noise may be generated depending on the conditions under
which the electric wave is generated, even if 1 meter is kept.)

NOTE

Air flow directions as shown in figure 1 merely
serve as examples of possible air flow directions.

4 Use suspension bolts for installation. Check whether the

ceiling is strong enough to support the weight of the indoor
unit. If there is a risk, reinforce the ceiling before installing
the unit.

(The installation pitch is marked on the paper pattern for
installation. Refer to it to check for points requiring reinforcing.)
Space required for installation see figure 2 ( = air flow
direction)

1 Air discharge
2 Air inlet

NOTE

Leave 200 mm or more space where marked with *; on
sides where the air outlet is closed.

Model H

FXFQ20~63 ≥214
FXFQ80+100 ≥256
FXFQ125 ≥298

PREPARATIONS BEFORE INSTALLATION

1. Relation of ceiling opening to unit and suspension bolt
position.

(See figure 3)

1

Refrigerant piping

2

Suspension bolt (x4)

3 Hanger bracket
4 False ceiling
5 Suspension bolt pitch
6 Indoor unit
7 Ceiling opening
8 Decoration panel

FXFQ20~125P7VEB
VRV System air conditioners
4PW31578-1B

Installation and operation manual

2

■ Use the installation guide (delivered with the unit) for exact
vertical positioning of the unit.

Apply the short side

of the installation guide in case of

normal installation

Apply the long side

of the installation guide in case of

installation with fresh air intake kit

INDOOR UNIT INSTALLATION

When installing optional accessories (except for the decoration
panel), read also the installation manual of the optional accessories.
Depending on the field conditions, it may be easier to install optional
accessories before the indoor unit is installed. However, for existing
ceilings, install fresh air intake kit before installing the unit.

1. Install the indoor unit temporarily.

• Attach the hanger bracket to the suspension bolt. Be sure to fix it
securely by using a nut and washer from the upper and lower
sides of the hanger bracket.

• Securing the hanger bracket see figure 6.

1 21 2

1 Lower ceiling surface
2 Underside of the unit

■ Installation is possible when opening dimensions are as follows.
When installing the unit within the frame for fixing ceiling
materials. (See figure 4)

1 Dimensions inside frame
2 Opening dimension inside the frame for ceiling
3 Frame
4 Ceiling material
5 Ceiling opening dimension
6 Ceiling-panel overlapping dimension

NOTE

Installation is possible with a ceiling dimension of
910 mm (marked with *). However, to achieve a ceiling­panel overlapping dimension of 20 mm, the spacing
between the ceiling and the unit should be 35 mm or
less. If the spacing between ceiling and the unit is over
35 mm, attach ceiling material to the part or recover
the ceiling.

2. Make the ceiling opening needed for installation where
applicable. (For existing ceilings.)

• Refer to the paper pattern for installation for the ceiling opening

dimensions.

• Create the ceiling opening required for installation. From the side

of the opening to the casing outlet, implement the refrigerant and
drain piping and wiring for remote controller (unnecessary for
wireless type) and indoor-outdoor unit casing outlet. Refer to
each piping or wiring section.

• After making an opening in the ceiling, it may be necessary to

reinforce ceiling beams to keep the ceiling level and to prevent it
from vibrating. Consult the builder for details.

3. Install the suspension bolts. (use either a W3/8 or M10 size bolt.)

Use anchors for existing ceilings, and a sunken insert, sunken
anchors or other field supplied parts for new ceilings to reinforce the
ceiling in order to bear the weight of the unit. Adjust clearance from
the ceiling before proceeding further.

Installation example see figure 5.

1 Nut (field supplied)
2 Washer (supplied with the unit)
3 Hanger bracket
4 Double nut (field supply, tighten)

2. Fix the paper pattern for installation. (For new ceilings
only.)

• The paper pattern for installation corresponds with the measure-

ments of the ceiling opening. Consult the builder for details.

• The centre of the ceiling opening is indicated on the paper

pattern for installation. The centre of the unit is indicated on the
unit casing and on the paper pattern for installation.

• After removing the packaging material from the paper pattern for

installation, attach the paper pattern for installation to the unit
with the attached screws as shown in figure 8.

1 Paper pattern for installation
2 Centre of the ceiling opening
3 Centre of the unit
4 Screws (supplied with the unit)

• Adjust the height of the unit until it matches the indication in

figure 8.

3. Adjust the unit to the right position for installation.

(Refer to "Preparations before installation" on page 2.)

4. Check if the unit is horizontally levelled.

• Do not install the unit tilted. The indoor unit is equipped with a

built-in drain pump and float switch. (If the unit is tilted against the
direction of the condensate flow (the drain piping side is raised),
the float switch may malfunction and cause water to drip.)

• Check if the unit is levelled at all four corners with a water level or

a water-filled vinyl tube as shown in figure 12.

1 Water level
2 Vinyl tube

5. Remove the paper pattern for installation. (For new ceilings
only.)

REFRIGERANT PIPING WORK

1 Ceiling slab
2 Anchor
3 Long nut or turn-buckle
4 Suspension bolt
5 False ceiling

NOTE

All the above parts are field supplied.
For other installation than standard installation, contact

your dealer for details.

Installation and operation manual

3

For refrigerant piping of outdoor unit, refer to the installation manual
supplied with the outdoor unit.

Execute heat insulation work completely on both sides of the gas
piping and the liquid piping. Otherwise, this can sometimes result in
water leakage.

Before rigging tubes, check which type of refrigerant is used.

All field piping must be provided by a licensed refrigeration
technician and must comply with the relevant local and
national codes.

■ Use a pipe cutter and flare suitable for the used refrigerant.

■ To prevent dust, moisture or other foreign matter from infiltrating

the tube, either pinch the end, or cover it with tape.

■ Use copper alloy seamless pipes (ISO 1337).

FXFQ20~125P7VEB

VRV System air conditioners

4PW31578-1B

■ The outdoor unit is charged with refrigerant.

C

356

6

C

356

6

■ To prevent water leakage, execute heat insulation work
completely on both sides of the gas and liquid piping. When
using a heat pump, the temperature of the gas piping can reach
up to approximately 120°C, use insulation which is sufficiently
heat resistant.

■ Be sure to use both a spanner and torque wrench together when
connecting or disconnecting pipes to/from the unit.

Piping insulation procedure

Gas piping Liquid piping

1 Torque wrench
2 Spanner
3 Piping union
4 Flare nut

12

3

4

■ Do not mix anything other than the specified refrigerant, such as
air, etc..., inside the refrigerant circuit.

■ Refer to Ta ble 1 for the dimensions of flare nut spaces and the
appropriate tightening torque. (Overtightening may damage the
flare and cause leaks.)

Ta ble 1

Flare dimension A

Pipe gauge Tightening torque

Ø6.4 14.2~17.2 N•m 8.7~9.1

Ø9.5 32.7~39.9 N•m 12.8~13.2
Ø12.7 49.5~60.3 N•m 16.2~16.6
Ø15.9 61.8~75.4 N•m 19.3~19.7

(mm)

Flare shape

±2

90°

45°

±2

A

R0.4~0.8

■ When connecting the flare nut, coat the flare both inside and
outside with ether oil or ester oil and initially tighten by hand 3 or
4 turns before tightening firmly.
Coat here with ether oil or ester oil

■ If the refrigerant gas leaks during the work, ventilate the area. A
toxic gas is emitted by the refrigerant gas being exposed to a fire.

■ Make sure there is no refrigerant gas leak. A toxic gas may be
released by the refrigerant gas leaking indoor and being
exposed to flames from an area heater, cooking stove, etc.

■ Finally, insulate as shown in the figure below (use the supplied
accessory parts)

1 Piping insulation material (field supply)
2 Flare nut connection
3 Insulation for fitting (delivered with the unit)
4 Piping insulation material (main unit)
5 Main unit
6 Clamp (field supply)
7 Medium 1 sealing pad for gas piping (delivered with the unit)

Medium 2 sealing pad for liquid piping (delivered with the unit)

A Turn seams up
B Attach to base
C Tighten the part other than the piping insulation material
D Wrap over from the base of the unit to the top of the flare nut

connection

For local insulation, be sure to insulate local piping all
the way into the pipe connections inside the unit.

Exposed piping may cause condensation or may
cause burns when touched.

Cautions for brazing

■ Be sure to carry out a nitrogen blow when brazing.
Brazing without carrying out nitrogen replacement or releasing
nitrogen into the piping will create large quantities of oxidized
film on the inside of the pipes, adversely affecting valves and
compressors in the refrigerating system and preventing normal
operation.

■ When brazing while inserting nitrogen into the piping, nitrogen
must be set to 0.02 MPa with a pressure-reducing valve (=just
enough so that it can be felt on the skin).

12 345

4
5
3
5

1
2

FXFQ20~125P7VEB
VRV System air conditioners
4PW31578-1B

1 Liquid pipe
2 Gas pipe
3 Insulation for fitting for liquid

pipe

4 Insulation for fitting for gas

pipe

5 Clamps

(use 2 clamps per insulation)

6

1 Refrigerant piping
2 Part to be brazed
3 Taping
4 Hands valve
5 Pressure-reducing valve
6 Nitrogen

6

Installation and operation manual

4

DRAIN PIPING WORK

m

Installation of drain piping

Install the drain piping as shown in figure and take measures against
condensation. Improperly rigged piping could lead to leaks and
eventually wet furniture and belongings.

■ How to perform piping (See figure 7)

1 Ceiling slab
2 Hanger bracket
3 Adjustable range
4 Drain raising pipe (nominal diameter of vinyl pipe = 25 mm)
5 Drain hose (supplied with the unit)
6 Clamp metal (supplied with the unit)

1-1.5

1 Hanging bar

■ Install the drain pipes.

-Keep piping as short as possible and slope it downwards at a
gradient of at least 1/100 so that air may not remain trapped
inside the pipe.

-Keep pipe size equal to or greater than that of the connecting
pipe (vinyl pipe of 25 mm nominal diameter and 32 mm outer
diameter).

- Push the supplied drain hose as far as possible over the
drain socket.

21

1 Drain socket (attached to the unit)
2 Drain hose (supplied with the unit)

- Tighten the metal clamp until the screw head is less than
4 mm from the metal clamp part as indicated in the
illustration.

- After the testing of drain piping is finished, attach the drain
sealing pad (4) supplied with the unit over the uncovered part
of the drain socket (= between drain hose and unit body).

4 3 5

1

4 mm

1 Drain socket (attached to the unit)
2 Drain hose (supplied with the unit)
3 Metal clamp (supplied with the unit)
4 Drain sealing pad (supplied with the unit)
5 Large sealing pad (supplied with the unit)
6 Drain piping (field supply)

-Wrap the supplied large sealing pad over the metal clamp
and drain hose to insulate and fix it with clamps.

- Insulate the complete drain piping inside the building (field
supply).

- If the drain hose cannot be sufficiently set on a slope, fit the
hose with drain raising piping (field supply).

Installation and operation manual

5

A-A'

1 Connect the drain hose to the drain raising pipes, and insulate

them.

2 Connect the drain hose to the drain outlet on the indoor unit, and

tighten it with the clamp.

■ Precautions

- Install the drain raising pipes at a height of less than 675 mm.

- Install the drain raising pipes at a right angle to the indoor
unit and no more than 300 mm from the unit.

-To prevent air bubbles, install the drain hose level or slightly
tilted up (≤75 mm).

NOTE

The incline of attached drain hose should be
75 mm or less so that the drain socket does
not have to withstand additional force.

To ensure a downward slope of 1:100, install
hanging bars every 1 to 1.5 m.

When unifying multiple drain pipes, install the
pipes as shown in figure 9. Select converging
drain pipes whose gauge is suitable for the
operating capacity of the unit.

1 T-joint converging drain pipes

Testing of drain piping

After piping work is finished, check if drainage flows smoothly.

■ Add approximately 1 l of water gradually through the air
discharge outlet.
Method of adding water. See figure 11.

1 Plastic watering can (tube should be about 100 mm long)
2 Service drain outlet (with rubber plug) (Use this outlet to

drain water from the drain pan)

3 Drain pump location
4 Drain pipe
5 Drain socket (water flow view point)

■ Check the drainage flow.

3
5
1
2

6

■ In case electric wiring work is finished

Check drainage flow during COOL running, explained in "Test

operation" on page 9.

■ In case electric wiring work is not finished

- Remove the control box lid. Connect the power supply
firmly to the terminal. See figure 10.

- Reattach the control box lid and turn on the power.

- Do not touch the drain pump. It may result in electric
shock.

1 Control box lid
2 Power supply wiring
3 Power supply terminal block
4 Clamp (field supply)
5 Unit transmission wiring
6 Te r minal block for transmission wiring
7 Opening for cables
8 Wiring diagram label

(on the back side of the control box lid)

9 Earth cable

10 Remote controller wiring

FXFQ20~125P7VEB

VRV System air conditioners

4PW31578-1B

Inter unit wiring terminal block (3)

N

L

NOTE

For details, refer to "Electrical data".

Specifications for field supplied fuses and wire

- Confirm the drain operation looking at the drain socket.

- After checking the drainage flow, turn off the power,
remove the control box lid and disconnect the power
supply from the terminal again.

- Reattach the control box lid.

ELECTRIC WIRING WORK

General instructions

■ All field supplied parts and materials and electric works must
conform to local codes.

■ Use copper wire only.

■ Follow the "Wiring diagram" attached to the unit body to wire the

outdoor unit, indoor units and the remote controller. For details
on hooking up the remote controller, refer to the "Installation
manual of the remote controller".

■ All wiring must be performed by an authorized electrician.

■ Attach the earth leakage circuit breaker and fuse to the power

supply line.

■ A main switch or other means for disconnection, having a
contact separation in all poles, must be incorporated in the fixed
wiring in accordance with relevant local and national legislation.
Note that the operation will restart automatically if the main
power supply is turned off and then turned back on again.

■ This system consists of multiple indoor units. Mark each indoor
unit as unit A, unit B..., and be sure the terminal block wiring to
the outdoor unit and BS unit are properly matched. If wiring and
piping between the outdoor unit and an indoor unit are
mismatched, the system may cause a malfunction.

■ Be sure to ground the air conditioner.

■ Do not connect the ground wire to:

- gas pipes: might cause explosions or fire if gas leaks.

- telephone ground wires or lightning rods: might cause

abnormally high electric potential in the ground during
lightning storms.

- plumbing pipes: no grounding effect if hard vinyl piping is

used.

Electrical characteristics

Model Hz Volts Voltage range

FXFQ20~125 50 / 60 220-240 / 220

power supply Fan motor

Model MCA MFA KW FLA

FXFQ20~32 0.4 16 A 0.056 0.3
FXFQ40 0.5 16 A 0.056 0.4
FXFQ50 0.6 16 A 0.056 0.5
FXFQ63 0.9 16 A 0.056 0.7
FXFQ80 0.9 16 A 0.120 0.7
FXFQ100 1.4 16 A 0.120 1.1
FXFQ125 1.9 16 A 0.120 1.5

MCA: Min. circuit Amps (A)
MFA: Max. Fuse Amps (A)
KW: Fan Motor Rated Output (kW)
FLA: Full Load Amps (A)

min. 198-max. 264 /

min. 198-max. 242

Power supply wiring

Model Field fuses Wire Size

FXFQ20~125 16 A H05VV-U3G Local codes

Transmission wiring

Model Wire Size

FXFQ20~125 Sheathed wire (2)

NOTE

■ For details, refer to "Wiring example" on page 7.

0.75-1.25 mm

2

■ Allowable length of transmission wiring between
indoor and outdoor units, and between the indoor
unit and the remote controller is as follows:

• Outdoor unit - indoor unit: max. 1000 m

(total wiring length: 2000 m)

• Indoor unit - remote controller: max 500 m

WIRING EXAMPLE AND HOW TO SET THE

REMOTE CONTROLLER

How to connect wiring (See figure 10)

■ Power supply wiring
Remove the control box lid (1) and connect the wires to the
power supply terminal block inside (L, N) and connect the
ground wire to the grounding terminal. While doing this, pull the
wires inside through the hole in the casing and clamp the wires
along with other wires using a clamp as indicated in the figure.

■ Unit transmission wiring and remote controller wiring
Remove the control box lid (1) and pull the wires inside through
the hole in the casing and connect to the terminal block for unit
transmission wiring (F1, F2) and remote controller wiring
(P1, P2). Securely fix the wiring using a clamp as indicated in
the figure.

■ After connection
Attach the small sealing (supplied with the unit) around the
cables to prevent infiltrating of water from the outside into the
unit. If two or more cables are used, divide the small sealing into
the required number of pieces and wrap them around all the
cables.

■ Attach the control box lid.

Precautions

1 Observe the notes mentioned below when wiring to the power

supply terminal block.

- Use a round crimp-style terminal for insulation sleeve for

connection to the terminal block for wiring the units. When
none are available, follow the instructions below.

12 3

- Do not connect wires of different gauge to the same power

supply terminal. (Looseness in the connection may cause
overheating.)

- When clamping wiring, use the clamps (delivered with the

unit) to prevent outside pressure being exerted on the wiring
connections. Tie up firmly. When doing the wiring, make sure
the wiring is neat and does not cause the control box to stick
up. Close the cover firmly.

- When connecting wires of the same gauge, connect them

according to the figure.

1 Round crimp-style terminal
2 Attach insulation sleeve
3 Wiring

FXFQ20~125P7VEB
VRV System air conditioners
4PW31578-1B

Installation and operation manual

6

Complete system example (3 systems)

See figures 13, 14 and 15.

Use the specified electric wire. Connect the wire securely to the
terminal. Lock the wire down without applying excessive force to
the terminal. Use torques according to the table below.

Tightening torque (N•m)

Te r minal block for unit transmission and
remote controller

Te r minal block for power supply 1.18~1.44

0.79~0.97

- When attaching the control box lid, make sure not to pinch
any wires.

- After all wiring connections are done, fill in any gaps in the
casing wiring holes with putty or insulation material (field
supply) thus to prevent small animals or dirt from entering the
unit from outside and causing short circuits in the control box.

2 Keep total current of crossover wiring between indoor units less

than 12 A. Branch the line outside the terminal block of the unit
in accordance with electrical equipment standards, when using
two power wiring of a gauge greater than 2 mm2 (Ø1.6).

The branch must be sheathed in order to provide an equal or
greater degree of insulation as power supply wiring itself.

3 Do not connect wires of different gauge to the same grounding

terminal. Looseness in the connection may deteriorate the
protection.

4 Remote controller wiring and unit transmission wiring should be

located at least 50 mm away from power supply wiring. Not
following this guideline may result in malfunction due to electrical
noise.

5 For the remote controller wiring, refer to the "Installation manual

of the remote controller" supplied with the remote controller.

NOTE

The customer has the ability to select the remote
controller thermistor.

6 Never connect the power supply wiring to the terminal block for

transmission wiring. This mistake could damage the entire system.

7 Use only specified wires and tightly connect wires to the

terminals. Be careful that wires do not place external stress on
the terminals. Keep wiring in neat order so that they do not
obstruct other equipment such as popping open the service
cover. Make sure the cover closes tight. Incomplete connections
could result in overheating, and in the worse case, electric shock
or fire.

WIRING EXAMPLE

1 Outdoor unit
2 Indoor unit
3 Remote controller (Optional accessories)
4 Most downstream indoor unit
5 For use with 2 remote controllers
6 BS unit

When using 1 remote controller for 1 indoor unit. (Normal
operation) (See figure 13).

For group control or use with 2 remote controllers

(See figure 14).

When including BS unit (See figure 15).

NOTE

It is not necessary to designate indoor unit address
when using group control. The address is automati­cally set when the power is activated.

Precautions

1. A single switch can be used to supply power to units on the
same system. However, branch switches and branch circuit
breakers must be selected carefully.

2. For a group control remote controller, choose the remote
controller that suits the indoor unit which has the most functions.

3. Do not ground the equipment on gas pipes, water pipes,
lightning rods or crossground with telephones. Improper
grounding could result in electric shock.

INSTALLATION OF THE DECORATION PANEL

Refer to the installation manual delivered with the decoration panel.
After installing the decoration panel, ensure that there is no space

between the unit body and decoration panel. Otherwise air may leak
through the gap and cause dewdrop.

FIELD SETTING

Field setting must be made from the remote controller in accordance
with the installation condition.

■ Setting can be made by changing the "Mode number", "First
code No." and "Second code No.".

■ For setting and operation, refer to the "Field setting" in the
installation manual of the remote controller.

Fit the power supply wiring of each unit with a switch and fuse as
shown in figure 17.

1 Power supply
2 Main switch
3 Power supply wiring
4 Unit transmission wiring
5 Switch
6 Fuse
7 BS unit (REYQ only)
8 Indoor unit
9 Remote controller

Installation and operation manual

7

FXFQ20~125P7VEB

VRV System air conditioners

4PW31578-1B

Summary of field settings

Mode

First

No.

code

(Note 1)

No.

Description of setting

Filter contamination

- Heavy/Light
= Setting to define

time between 2 filter

cleaning display

indications. (When

0

contamination is

high, setting can be

changed to half the

time inbetween 2

filter cleaning

display indications.)

Thermostat sensor selection

2

Long-life
filter

10

(20)

Setting for display of time
between 2 filter cleaning display

3

indications

Information to I-manager,

5

I-touch controller

Thermostat sensor in group

6

control

Output signal X1-X2 of the

0

optional KRP1B PCB kit

ON/OFF input from outside
(T1/T2 input) = Setting when

1

forced ON/OFF is to be
operated from outside.

12

(22)

13

(23)

Note 1 : Setting is carried out in the group mode, however, if the mode number inside parentheses is selected,

Note 2 : Factory settings of the Second code No. are marked in grey backgrounds.
Note 3 : Only use in combination with optional remote sensor or when setting 10-2-03 is used.
Note 4 : If group control is selected and remocon sensor is to be used, then set 10-6-02 & 10-2-03.
Note 5 : If setting 10-6-02 + 10-2-01 or 10-2-02 or 10-2-03 are set at the same time, then setting 10-2-01,

Note 6 : If setting 10-6-01 + 10-2-01 or 10-2-02 or 10-2-03 are set at the same time, then setting for group

Note 7 : More settings for Differential automatic change over temperatures are:

Thermostat differential
changeover = Setting when

2

remote sensor is used.

Fan setting during thermostat

3

OFF at heating operation

Differential automatic

4

changeover

Auto-restart after power failure Disabled Enabled — —

5

Setting for air outlet
velocity
This setting is to be

0

changed in function
of ceiling height.

Selection for air flow direction
This setting is to be changed

1

when blocking pad optional kit
is used.

Airflow direction range setting
This setting is to be changed
when range of swing flap

4

movement needs to be
changed.

indoor units can also be set individually.

10-2-02 or 10-2-03 have priority.

connection, 10-6-01 has priority and for individual connection, 10-2-01, 10-2-02 or 10-2-03 have
priority.

Second code No. 05 4°C

other
models

FXFQ125
only

06 5°C
07 6°C
08 7°C

■ When using wireless remote controllers it is necessary to use
address setting. Refer to the installation manual attached to the
wireless remote controller for the setting instructions.

Second code No. (Note 2)

01 02 03 04

±2,500 hrs.

Light

Use both the
unit sensor (or
remote sensor if
installed) AND
the remote
controller
sensor.
(See note 5+6)

Display Do not display — —

Only unit sensor
value (or remote
sensor value if
installed).

Use unit sensor
only (or remote
sensor if
installed).
(See note 6)

Thermostat-on +
compressor run

Forced OFF

1°C 0.5°C — —

LL Set speed

0°C 1°C 2°C

≤2.7 m >2.7 ≤3.0 m >3.0 ≤3.5 m —

≤3.2 m >3.2 ≤3.6 m >3.6 ≤4.2 m —

4-way flow 3-way flow 2-way flow —

Upper

±1,250 hrs.

Heavy

Use unit sensor
only (or remote
sensor if
installed).
(See note 5+6)

Sensor value as
set by 10-2-0X
or 10-6-0X.

Use both the
unit senor (or
remote sensor if
installed) AND
the remote
controller
sensor. (See
note 4+5+6)

— Operation

ON/OFF
operation

Normal Lower —

––

Use remote
controller
sensor only.
(See note 5+6)

——

——

——

OFF
(See note 3)

—

Mal­function

—

3°C
(See
note 7)

Control by 2 Remote Controllers (Controlling 1 indoor unit by 2 remote controllers)

When using 2 remote controllers, one must be set to "MAIN" and the
other to "SUB".

Main/sub changeover

1. Insert a wedge-head screwdriver into the recess between the
upper and lower part of the remote controller and, working from
the 2 positions, pry off the upper part. (See figure 19)
(The remote controller PC board is attached to the upper part of
the remote controller.)

2. Tu rn the main/sub changeover switch on one of the two remote
controller PC boards to "S". (See figure 20)
(Leave the switch of the other remote controller set to "M".)

1 Remote controller PC board
2 Factory setting
3 Only one remote controller needs to be changed

Computerised control (forced off and on/off operation)

1. Wire specifications and how to perform wiring.

• Connect input from outside to terminals T1 and T2 of the terminal

block (remote controller to transmission wiring).

Wire specification Sheathed vinyl cord or cable (2 wire)

Gauge

0.75-1.25 mm

2

Length Max. 100 m

External terminal

Contact that can ensure the minimum applicable load

of 15 V DC, 1 mA

See figure 18.

1 Input A

2. Actuation

• The following table explains "forced off" and "on/off operations" in

response to input A.

Forced off on/off operation

Input "on" stops operation

Input "off" enables control

input off ➜ on: turns on the unit

(impossible by remote controllers)

input on ➜ off: turns off the unit

(by remote controller)

3. How to select forced off and on/off operation

•Turn the power on and then use the remote controller to select

operation.

• Set the remote controller to the field set mode. For details, refer

to the chapter "How to set in the field", in the remote controller
manual.

• When in the field set mode, select mode No. 12, then set the first

code (switch) No. to "1". Then set second code (position) No. to
"01" for forced off and to "02" for on/off operation. (forced off at
factory set.) (See figure 16)

1 Second code No.
2 Mode No.
3 First code No.
4 Field set mode

Centralized control

For centralized control, it is necessary to designate the group No. For
details, refer to the manual of each optional controller for centralized
control.

FXFQ20~125P7VEB
VRV System air conditioners
4PW31578-1B

Installation and operation manual

8

TEST OPERATION

Refer to the installation manual of the outdoor unit.

NOTE

The operation lamp of the remote controller will flash when an error
occurs. Check the error code on the liquid crystal display to identify
the trouble. Refer to the installation manual attached to the outdoor
unit or contact your dealer. See figure 22.

1 Drain pumping device (built-in) drain water is removed from the

2 Air flow flap (at air outlet)
3 Air outlet
4 Remote controller
5 Suction grille
6 Air filter (inside suction grille)

When performing field settings or test operation
without attaching the decoration panel, do not touch
the drain pump. This may cause electric shock.

room during cooling

2 Remove the air filter (actions 2 to 4 in the illustration).

Pull the air filter clip on both the bottom left and the right side of
the filter toward you, and detach the filter.

3 Clean the air filter. (See figure 23)

Use vacuum cleaner or wash the air filter with water.
When the air filter is very dirty, use soft brush and neutral
detergent.

4 Remove water and dry in the shade.

5 Install the air filter back in place (perform actions 2 to 4 in the

illustration in reverse order).
Attach the air filter to the suction grille by hanging it over the

projected portion above the suction grille.
Press the bottom of the air filter against the projections on the
bottom of the grille to snap the air filter into its place.

6 Close the suction grille by performing procedure step 1 in

reverse order.

7 After turning on the power, press the FILTER SIGN RESET

button.
The "TIME TO CLEAN AIR FILTER" display vanishes.

MAINTENANCE

CAUTION

■ Only a qualified service person is allowed to perform
maintenance.

■ Before obtaining access to terminal devices, all power supply
circuits must be interrupted.

■ To clean the air conditioner, be sure to stop operation and turn
the power switch off.
Otherwise, an electric shock and injury may result.

■ Do not wash the air conditioner with water.
Doing so may result in an electric shock.

■ Be careful with scaffoldings.
Caution must be exercised when working in high places.

■ After a long use, check the unit stand and fitting for damage. If
damaged, the unit may fall and cause injury.

■ Do not touch the heat exchanger fins.
The fins are sharp and could result in cutting injuries.

■ When cleaning the heat exchanger, be sure to remove the
control box, fan motor, drain pump and float switch. Water or
detergent may deteriorate the insulation of electronic
components and result in burn-out of these components.

How to clean the air filter

Clean the air filter when the display shows " " (TIME TO CLEAN
AIR FILTER).

Increase the frequency of cleaning if the unit is installed in a room
where the air is extremely contaminated.

(As a yardstick for yourself, consider cleaning the filter once a half
year.)

If dirt becomes impossible to clean, change the air filter. (Air filter for
exchange is optional.)

NOTE

1 Open the suction grille (See figure 21) (action 1 in the

Installation and operation manual

Do not wash the air filter with hot water of more than
50°C. Doing so may result in discoloration and/or
deformation.

Do not expose the unit to fire. Doing so may result in
burning.

illustration).
Push both levers simultaneously in the direction of the arrow as
indicated in the illustration and carefully lower the grille.
(Identical procedure for closing.)

9

NOTE

Do not remove the air filter except when cleaning.
Unnecessary handling may damage the filter.

How to clean the suction grille

(See figure 21)

1 Open the suction grille (action 1 in the illustration).

Refer to procedure step 1 in "How to clean the air filter" on

page 9.

2 Detach the suction grille (actions 5 to 6 in the illustration).

First detach the 2 strings from the pins of the decoration panel.
Hold the suction grille open at 45 degrees and lift it upward to
unhook it from the decoration panel.

3 Remove the air filter (actions 2 to 4 in the illustration).

Refer to procedure step 2 in "How to clean the air filter" on

page 9.

4 Clean the suction grille.

Wash with a soft bristle brush and neutral detergent or water,
and dry thoroughly. See figure 24.

NOTE

When the suction grille is very dirty, use a typical
kitchen cleaner and let it sit for about 10 minutes.
Then, wash it with water.

Do not wash the suction grille with hot water of more
than 50°C. Doing so may result in discoloration and/or
deformation.

5 Install the air filter back in place (perform actions 2 to 4 in the

illustration in reverse order).

6 Reattach the suction grille by performing procedure step 2 in

reverse order (perform actions 5 to 6 in the illustration in reverse
order).

7 Close the suction grille by performing procedure step 1 in

reverse order.

How to clean the air outlet and outside panels

■ Clean with a soft cloth.

■ When it is difficult to remove stains, use water or neutral

detergent.

FXFQ20~125P7VEB

VRV System air conditioners

4PW31578-1B

NOTE

Do not use gasoline, benzene, thinner, polishing
powder, liquid insecticide. It may cause discoloring or
warping.

Do not let the indoor unit get wet. It may cause an
electric shock or a fire.

Do not scrub firmly when washing the blade with water.
The surface sealing may peel off.

Do not use water or air of 50°C or higher for cleaning
air filters and outside panels.

DISPOSAL REQUIREMENTS

Dismantling of the unit, treatment of the refrigerant, of oil and of other
parts must be done in accordance with relevant local and national
legislation.

NOTES

FXFQ20~125P7VEB
VRV System air conditioners
4PW31578-1B

Installation and operation manual

10

WIRING DIAGRAM

Indoor unit

A1P,A2P ..............Printed circuit board

C1........................ Capacitor

F1U .....................Fuse (T, 5 A, 250 V)

HAP..................... Light emitting diode (service monitor - green)

KPR..................... Magnetic relay (drain pump)

L1 ........................Coil

M1F ..................... Motor (indoor fan)

M1P..................... Motor (drain pump)

M1S..................... Motor (swing flap)

PS .......................Power supply circuit

Q1DI.................... Earth leak detector

R1T .....................Thermistor (air)

R2T .....................Thermistor (coil)

R3T .....................Thermistor (header)

S1L...................... Float switch

X1M,X2M ............Terminal strip

Y1E .....................Electronic expansion valve

Z1C .....................Ferrite core

Wired remote controller

R1T......................Thermistor (air)

SS1......................Selector switch (MAIN/SUB)

Receiver/display unit (attached to wireless remote controller)

A3P,A4P...............Printed circuit board

BS1......................ON/OFF button

H1P......................Light emmiting diode (On - Red)

H2P......................Light emmiting diode (Timer - Green)

H3P......................Light emmiting diode (Filter sign- Red)

H4P......................Light emmiting diode (Defrost - Orange)

SS1......................Selector switch (MAIN/SUB)

SS2......................Selector switch (wireless address set)

Connector for optional parts

X24A....................Connector (wireless remote controller)

X33A....................Connector (adaptor for wiring)

X35A....................Connector (group control adaptor)

Notes

1

2 In case of using a central remote controller, connect it to the unit in accordance with the attached installation manual.

3 X24A, X33A, and X35A are connected when the optional accessories are being used.

4 When connecting the input wires from outside, FORCED OFF or ON/OFF CONTROL operation can be selected by the remote controller. See installation

manual for more details

5 Confirm the method of setting the selector switch (SS1, SS2) by installation manual and engineering data, etc.

6 Colour legend

BLK : Black BLU : Blue ORG : Orange YLW : Yellow

PNK : Pink RED : Red WHT : White GRN : Green

BRN : Brown GRY : Gray

Control box :

Receiver/display unit :

Central remote controller :

Wired remote controller :

Input from outside :

: Te r minal : Connector : Field wiring

,

Installation and operation manual

11

FXFQ20~125P7VEB

VRV System air conditioners

4PW31578-1B

13

NL

1

Control box

IN/D OUT/D

1 F2 F1 F2

F

N

LNLNL

4

LN

P1P

2

F1F2T1T

2

P1P

2

F1F2T1T

2LN

P1P

2

F1F2T1T

2LN LNP1P2

F1F2T1T

2

2

P1P

2

3

P1P

2

P1P

2

P1P

2

13 15

14

L

N

1

Control box

IN/D OUT/D

F1 F2 F1 F2

4

LN

P1P

2

F1F2T1T

2

3

2 LNP1P2F1F2T1T2 LNP1P2F1F2T1T2 LNP1P2F1F2T1T2

P1P

2

P1P

P1P

5

2

2

14

17

1

2

3
4

5

18

F2 T1 T2

FORCED
OFF

6

15

L

N

Control box

IN/D OUT/D

F

1 F2 F1 F2

LN

1

P1P2F1F2T1T

6

Control box

IN/DOUT/D

F

1 F2 F1 F2

2

2

P1P

2

3

16

3

21

SETTING

4

16

20

S

1

18

7

19

S

2

M

1

S

3

M

8

9

21

1

4
2+3

3

4

22

2

5+6

19

2017

23

1

2

23

21

5

6

3

24

4

22

24

Zandvoordestraat 300, B-8400 Oostende, Belgium

4PW31578-1B