Daikin FXSQ63P7VEB user guide manual

INSTALLATION AND

OPERATION MANUAL

System air conditioners

FXSQ20P7VEB
FXSQ25P7VEB
FXSQ32P7VEB
FXSQ40P7VEB
FXSQ50P7VEB
FXSQ63P7VEB
FXSQ80P7VEB
FXSQ100P7VEB
FXSQ125P7VEB
FXSQ140P7VEB

2

1

≥300

153

276

4

5

1 2

3

2
1

3
4
5

4

1
2

2
3

1

4 53

6a 6b 6c

200<45

1 3 442

680

1 56342

680

43

630
700

1 5342

A

B

4

2

680

7

6a

7a

180

425

160

(160~300)

1 3 52

460

6b 6c

7c

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1

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7b

180

≥350

1 32

460

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2

7b

8

9

26

7c

1

1

5 41 3

2

8 9

10

5

0~75

≤300 mm

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1~1.5 m

3

1
2

≤ 625

A

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10 11

11

100 mm

≥

0~625 mm

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ATITIKTIES-DEKLARACIJA

ATBILSTĪBAS-DEKLARĀCIJA

VYHLÁSENIE-ZHODY

CE -

CE -

CE -

CE - UYUMLULUK-BİLDİRİSİ

ZJAVA O SKLADNOSTI

VASTAVUSDEKLARATSIOON

ДЕКЛАРАЦИЯ-ЗА-СЪОТВЕТСТВИЕ

CE - I

CE -

CE -

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

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

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IZJAVA-O-USKLAĐENOSTI

DEKLARACJA-ZGODNOŚCI

DECLARAŢIE-DE-CONFORMITATE

CE - MEGFELELŐSÉGI-NYILATKOZAT

CE -

CE -

CE -

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

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:

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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:

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›.

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pozitīvajam

и оценено

z późniejszymi poprawkami.

Directivelor, cu amendamentele respective.

<A>

<B>

съгласно

ir kaip teigiamai nuspręsta

<B>

un atbilstoši

<A>

<A>

Sertifikatą <C>

положително от

pagal

както е изложено в

Cертификата <C>

kaip nustatyta

kā norādīts

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Directivas, conforme alteração em.

Директив со всеми поправками.

, pozytywną opinią

şi apreciat pozitiv

igazolta a megfelelést,

<B>

alapján, a(z)

<A>

a(z)

Certificatul <C>

<A>

<A>

szerint.

în conformitate cu

Świadectwem <C>

<C> tanúsítvány

<B>

a(z)

de

zgodnie z dokumentacją

<B>

aşa cum este stabilit în

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<A> DAIKIN.TCF.024D17/09-2009

<B> TÜV (NB1856)

<C> 0510260101

v

<B>

<C> Sertifikasına

a pozitívne zistené

sertifikātu <C>

<A>

tarafından olumlu olarak

<B>

osvedčením <C>

‘da belirtildiği gibi ve

vērtējumam saskaņā ar

değerlendirildiği gibi.

súlade s

ako bolo uvedené v

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24 Poznámka *

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v

<B>

ja heaks

<A>

sertifikaadile <C>

in odobreno s strani

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järgi vastavalt

certifikatom <C>

<B>

kiidetud

kot je določeno v

nagu on näidatud dokumendis

skladu s

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Daikin Europe N.V. je pooblaščen za sestavo datoteke s tehnično mapo.

Daikin Europe N.V. on volitatud koostama tehnilist dokumentatsiooni.

Daikin Europe N.V. е оторизирана да състави Акта за техническа конструкция.

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Daikin Europe N.V. Teknik Yapı Dosyasını derlemeye yetkilidir.

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PROHLÁŠENÍ-O-SHODĚ

CE - ERKLÆRING OM-SAMSVAR

CE - ILMOITUS-YHDENMUKAISUUDESTA

CE -

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

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

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q

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

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:

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:

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n

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

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

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declaración:

referencia la

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:

Low Voltage 2006/95/EC

Machinery 98/37/EC (➞ 29/12/2009)

Machinery 2006/42/EC (29/12/2009 ➞)

Electromagnetic Compatibility 2004/108/EC

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:

Notă *

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17 Uwaga *

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on

<B>

ja jotka

enligt

<B>

och godkänts av

<A>

enligt

11 Information *

e giudicato positivamente

<A>

delineato nel

mukaisesti.

<A>

Sertifikat <C>

og gjennom positiv

<A>

ifølge

<B>

Sertifikaatin <C>

hyväksynyt

Certifikatet <C>

som det fremkommer i

bedømmelse av

jotka on esitetty asiakirjassa

12 Merk *

13 Huom *

Certificado <C>

¶ИЫЩФФИЛЩИОfi <C>

e com o parecer

Î·È ÎÚ›ÓÂÙ·È ıÂÙÈο

<A>

<A>

Certificato <C>

de acordo com o

Û‡Ìʈӷ Ì ÙÔ

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<B>

secondo il

<B>

positivo de

·fi ÙÔ

tal como estabelecido em

da

* fiˆ˜ ηıÔÚ›˙ÂÙ·È ÛÙÔ

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06 Nota *

08 Nota

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positiv

<B>

<C>

<C>

et évalué positivement par

Certificat <C>

<A>

Certificate

and judged positively by

Zertifikat

aufgeführt und von

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conformément au

beurteilt gemäß

according to the

as set out in

wie in der

tel que défini dans

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Společnost Daikin Europe N.V. má oprávnění ke kompilaci souboru technické konstrukce.

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19 Opomba *

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v

<B>

a pozitivně zjištěno

i pozitivno ocijenjeno od

<A>

Certifikatu <C>

<A>

prema

osvědčením <C>

<B>

strane

jak bylo uvedeno v

kako je izloženo u

souladu s

14 Poznámka *

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i

<B>

согласно

<B>

и в соответствии с

og positivt vurderet af

<A>

<A>

Certifikat <C>

положительным решением

henhold til

как указано в

Свидетельству <C>

som anført i

09 Примечание *

10 Bemærk *

y es valorado

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<A>

Certificaat <C>

en positief beoordeeld door

<B>

<A>

overeenkomstig

zoals vermeld in

<B>

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Certificado <C>

positivamente por

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∏ Daikin Europe N.V. Â›Ó·È ÂÍÔ˘ÛÈÔ‰ÔÙË̤ÓË Ó· Û˘ÓÙ¿ÍÂÈ ÙÔÓ ∆¯ÓÈÎfi Ê¿ÎÂÏÔ Î·Ù·Û΢‹˜.

A Daikin Europe N.V. está autorizada a compilar a documentação técnica de fabrico.

Компания Daikin Europe N.V. уполномочена составить Комплект технической документации.

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Daikin Europe N.V. este autorizat să compileze Dosarul tehnic de construcţie.

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Jiro Tomita

Director Quality Assurance

Ostend, 1st of December 2009

Daikin Europe N.V. er autoriseret til at udarbejde de tekniske konstruktionsdata.

Daikin Europe N.V. är bemyndigade att sammanställa den tekniska konstruktionsfilen.

Daikin Europe N.V. har tillatelse til å kompilere den Tekniske konstruksjonsfilen.

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declares under its sole responsibility that the air conditioning models to which this declaration 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 déclaration:

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

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

‰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:

a

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CE - DECLARATION-OF-CONFORMITY

CE - KONFORMITÄTSERKLÄRUNG

CE - DECLARATION-DE-CONFORMITE

CE - CONFORMITEITSVERKLARING

Daikin Europe N.V.

g

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

p

FXSQ20P7VEB*, FXSQ25P7VEB*, FXSQ32P7VEB*, FXSQ40P7VEB*, FXSQ50P7VEB*, FXSQ63P7VEB*, FXSQ80P7VEB*, FXSQ100P7VEB*, FXSQ125P7VEB*, FXSQ140P7VEB*,

* = , , 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

Daikin Europe N.V. is authorised to compile the Technical Construction File.

Daikin Europe N.V. hat die Berechtigung die Technische Konstruktionsakte zusammenzustellen.

Daikin Europe N.V. est autorisé à compiler le Dossier de Construction Technique.

Daikin Europe N.V. is bevoegd om het Technisch Constructiedossier samen te stellen.

Daikin Europe N.V. está autorizado a compilar el Archivo de Construcción Técnica.

following the provisions of:

gemäß den Vorschriften der:

conformément aux stipulations des:

overeenkomstig de bepalingen van:

siguiendo las disposiciones de:

secondo le prescrizioni per:

Ì ًÚËÛË Ùˆv ‰È·Ù¿Íˆv Ùˆv:

de acordo com o previsto em:

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·˜:

EN60335-2-40,

в соответствии с положениями:

01 Note *

02 Hinweis *

03 Remarque *

04 Bemerk *

05 Nota

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Daikin Europe N.V. è autorizzata a redigere il File Tecnico di Costruzione.

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3PW46981-6C

FXSQ20P7VEB FXSQ50P7VEB FXSQ100P7VEB
FXSQ25P7VEB FXSQ63P7VEB FXSQ125P7VEB
FXSQ32P7VEB FXSQ80P7VEB FXSQ140P7VEB
FXSQ40P7VEB

VRV System air conditioners

Installation and

operation manual

CONTENTS Page

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

Important information regarding the refrigerant used........................ 2

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

Preparations before installation......................................................... 3

Indoor unit installation .......................................................................4

Refrigerant piping work .....................................................................4

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

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

Wiring example and how to set the remote controller ....................... 7

Wiring example ................................................................................. 8

Field setting....................................................................................... 8

Installation of the decoration panel ................................................. 10

Test operation.................................................................................. 10

Maintenance.................................................................................... 10

Disposal requirements .................................................................... 11

Wiring diagram ................................................................................ 12

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.

The English text is the original instruction. Other languages are
translations of the original instructions.

Installation must be done by a licensed technician.
The choice of materials and installation must comply
with the applicable national and international
regulations.

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.

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

■ This appliance is not intended for use by persons, including
children, with reduced physical, sensory or mental capabilities,
or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance
by a person responsible for their safety.
Children should be supervised to ensure that they do not play
with the appliance.

Accessories

Check if the following accessories are included with your unit.

12

Installation and operation manual

1

Metal clamp

1 piece

Large sealing pad

1 piece

Other: installation and operation manual

Drain hose

1 piece

Insulation for fitting

for gas pipe

1 piece

Washer for

hanging bracket

8 pieces

for liquid pipe

1 piece

Screws for fixing panels are attached to the air inlet panel.

VRV System air conditioners

Medium

sealing pad

2 pieces

Screws for duct

flanges

1 set

16 pieces

FXSQ20~140P7VEB

4PW56483-1

Optional accessories

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

■ When installing bottom suction: air inlet panel and canvas
connection for the air inlet panel.

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 and checked for air leaks?

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.

Are the air filters fixed properly (when installing with rear duct)?

Maintenance of the air filters can be impossible.

Is the external static pressure set?

It may result in insufficient cooling or heating.

SELECTING INSTALLATION SITE

(See figure 1 and figure 2)

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.

- The equipment is not intended for use in a potentially
explosive atmosphere.

- Where piping between indoor and outdoor units is possible
within the allowable limit. (Refer to the installation manual of
the outdoor unit.)

-Keep indoor unit, outdoor unit, power supply wiring and
transmission wiring 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.)

- 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.

- Do not place objects that are susceptible to moisture directly
beneath the indoor or outdoor units. Under certain
conditions, condensation on the main unit or refrigerant
pipes, air filter dirt or drain blockage may cause dripping,
resulting in fouling or failure of the object concerned.

2 Ensure that a protective guard is installed on air suction and air

outlet side to prevent that the fan blades or heat exchanger be
touched.

The protection must comply with relevant European and national
regulations.

3 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.

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.

IMPORTANT INFORMATION REGARDING THE

REFRIGERANT USED

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

Refrigerant type: R410A

(1)

GWP

value: 1975

(1)

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 Service space
2 Drain pipe
3 Power supply wiring port
4 Tr ansmission wiring port
5 Maintenance drain outlet
6 Gas pipe
7 Liquid pipe

FXSQ20~140P7VEB
VRV System air conditioners
4PW56483-1

Installation and operation manual

2

PREPARATIONS BEFORE INSTALLATION

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

(See figure 5)

Model A (mm) B (mm)

20~32 550 586
40+50 700 738
63+80 1000 1038
100~140 1400 1438

1 Indoor unit
2 Pipe
3 Suspension bolt pitch (x4)
4 Suspension bolt pitch distance

For installation, choose one of the possibilities as listed further.

Mounting the air inlet panel with a canvas connection (See

figure 7a)

Mounting the air inlet panel directly (See figure 7b)

1 Ceiling surface
2 Ceiling opening
3 Air inlet panel (Optional accessory)
4 Indoor unit (Back side)
5 Canvas connection for air inlet panel (Optional accessory)

Model A (mm)

20~32 610
40+50 760
63+80 1060
100~140 1460

Standard rear suction (See figure 6a)

1 Ceiling surface
2 Ceiling opening
3 Service access panel (optional accessory)
4 Air filter
5 Air inlet duct
6 Duct service opening
7 Interchangeable plate

Installation with rear duct and duct service opening (See

figure 6b)

Installation with rear duct, no duct service opening (See

figure 6c)

NOTE

Before installation of the unit (in case of installation
with duct, but no duct service opening): modify the
position of the air filters.

1 Remove the air filter(s) at the

outside of the unit

2 Remove the interchangeable

plate

3 Install the air filter(s) from the

inside of the unit

4 Reinstall the interchangeable

plate

3

2

4

Bottom suction (See figure 7c)

NOTE

NOTE

2 The fan speed for this indoor unit is preset to provide standard

3 Install the suspension bolts.

Installation example

(See figure 3)

1

The unit can be used with bottom suction by replacing
the interchangeable plate by the air filter holding plate.

1 Air filter holding plate with air filter(s)
2 Interchangeable plate

For other installation than standard installation, contact
your Daikin dealer for details.

external static pressure.

(Use M10 size bolt for the suspension 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.

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

NOTE

When installing an air inlet duct, select fixing screws
that shall stick out maximum 5 mm at the inside of the
flange to protect the air filter from damage during
maintenance of the filter.

1 Air inlet duct

2 Inside of the flange

3 Fixing screw

Installation and operation manual

3

12

3

≤5 mm

NOTE

All the above parts are field supplied.

VRV System air conditioners

FXSQ20~140P7VEB

4PW56483-1

INDOOR UNIT INSTALLATION

C

356

6

C

356

6

When installing optional accessories (except for the air inlet 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.

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. (See figure 4)

1 Nut (field supply)
2 Washer for hanger bracket (supplied with the unit)
3 Tighten (double nut)

2 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 condensate flow, 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 9.

1 Water level
2 Vinyl tube

3 Tighten the upper nut.

REFRIGERANT PIPING WORK

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

Pipe

gauge

(mm)

Ø6.4 15~17 8.7~9.1

Ø9.5 33~39 12.8~13.2
Ø12.7 50~60 16.2~16.6
Ø15.9 63~75 19.3~19.7

Tightening torque

(N•m)

Flare dimension

A (mm)

Flare shape

±2

90°

45°

±2

A

R=0.4~0.8

■ When connecting the flare nut, coat the flare inner surface with
ether oil or ester oil and initially tighten 3 or 4 turns by hand
before tightening firmly.

■ 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 figures below.

Piping insulation procedure

Gas piping Liquid piping

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

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).

■ The outdoor unit is charged with refrigerant.

■ 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.

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.

■ Use annealed material only for flare connections.

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.

FXSQ20~140P7VEB
VRV System air conditioners
4PW56483-1

Installation and operation manual

4

Cautions for brazing

A'

■ 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

6

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

6

DRAIN PIPING WORK

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

1-1.5 m

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.

- Tighten the metal clamp until the screw head is less than

4 mm from the metal clamp part as indicated in the
illustration.

1 23 5

A

A

1

4

- 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).

■ How to perform drain piping (See figure 10)

1 Ceiling slab
2 Hanger bracket
3 Adjustable range
4 Drain raising pipe
5 Drain hose (supplied with the unit)
6 Clamp metal (supplied with the unit)

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.

Installation A (mm)

Rear suction installation 231
When canvas duct is installed 350-530
When air inlet panel is directly installed 231

■ Precautions

- Install the drain raising pipes at a height of less than 625 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 11. 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. Check for water leaks.
Method of adding water. See figure 8.

1 Water inlet
2 Portable pump
3 Water inlet cover
4 Bucket (adding water through water inlet)
5 Drain outlet for maintenance (with rubber drain plug)
6 Refrigerant pipes

A'

A'

≤4 mm

A-A'

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

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

Installation and operation manual

5

5
3

1
2

FXSQ20~140P7VEB

VRV System air conditioners

4PW56483-1

Caution for drain socket

Do not remove the drain pipe plug. Water might leak out.
The drain outlet is only used to discharge water if the drain

pump is not used or before maintenance. Gently put in and
out the drain plug. Excessive force may deform the drain
socket of the drain pan.

■ Pulling out the plug

1

1 Drain plug

Do not wiggle the plug up and down

■ Pushing in the plug

1

2

1 Drain plug
2 Crosshead screwdriver

Set the plug and push it by using a crosshead screw­driver

First perform electric wiring work as instructed in "Electric wiring

work" on page 6 and how to set the remote controller as explained in
"Wiring example and how to set the remote controller" on page 7.

When electric wiring work is finished

Check drainage flow during COOL running, explained in "Test operation"

on page 10.

When electric wiring work is not finished

Remove the switch box cover and connect the single-phase power
supply and the remote controller to the terminals. (Refer to "Electric

wiring work" on page 6 for switch box attachment/detachment.)

(Refer to figure 12 and figure 14)

1 Switch box cover
2 Tr ansmission wiring port
3 Power supply wiring port
4 Wiring diagram
5 Switch box
6 Plastic clamp
7 Remote controller wiring
8 Te r minal board for unit transmission wiring

9 Power supply wiring
10 Indoor PC board 1
11 Power supply terminal board
12 Tr ansmission wiring between units
13 Indoor PC board 2
14 Indoor PC board 3 (only for 63~140 units)

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.

■ Make sure electrical wires are stripped
equally.

Electrical characteristics

Power supply

Model Hz Vol ts Voltage range

20
25 0.5
32 0.5
40 1.2
50 1.2
63 1.1
80 1.3
100 1.4
125 1.9
140 3.1

50/60 220-240/220 ±10%

MCA: Min. circuit Amps (A)
MFA: Max. Fuse Amps (A)

NOTE

For details, refer to "Electrical data" in the technical
data book.

MCA MFA

0.5

16 A

Next, press the inspection/test operation button on the remote
controller. The unit will engage the test operation mode. Press the
operation mode selector button until selecting fan operation

. Then, press the on/off button . The indoor unit fan and drain
pump will start up. Check that the water has drained from the unit.
Press to go back to the first mode.

FXSQ20~140P7VEB
VRV System air conditioners
4PW56483-1

Installation and operation manual

6

Specifications for field supplied fuses and wire

Power supply wiring

Model Field fuses Wire Size

20~140 16 A H05VV-U3G Local codes

- When connecting wires of the same gauge, connect them
according to the figure.

Model Wire Size

20~140 Sheathed wire (2)

NOTE

For details, refer to "Wiring example" on page 8.

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:

1. Outdoor unit - indoor unit: max. 1000 m (total wiring length:
2000 m)

2. Indoor unit - remote controller: max 500 m

WIRING EXAMPLE AND HOW TO SET THE

REMOTE CONTROLLER

How to connect wiring

Remove the switch box cover as shown in figure 12, and make the
connections.

1 Switch box cover
2 Tr ansmission wiring port
3 Power supply wiring port
4 Wiring diagram
5 Switch box

PRECAUTIONS

1 Observe the notes mentioned below when wiring to the power

supply terminal board.

- 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.

1 Round crimp-style terminal
2 Attach insulation sleeve

1 2 3

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

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

3 Wiring

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 1.2

0.9

- 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 board of the unit
in accordance with electrical equipment standards, when using

two power wiring of a gauge greater than 2 mm

2

(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 cords and wires connecting the units 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.

6 Never connect the power supply wiring to the terminal board 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 switch box
cover. Make sure the cover closes tight. Incomplete connections
could result in overheating, and in the worse case, electric shock
or fire.

Installation and operation manual

7

FXSQ20~140P7VEB

VRV System air conditioners

4PW56483-1

WIRING EXAMPLE

FIELD SETTING

Fit the power supply wiring of each unit with a switch and fuse as
shown in figure 16.

1 Power supply
2 Main switch
3 Power supply wiring
4 Tr ansmission wiring
5 Switch
6 Fuse
7 BS unit REYQ only
8 Indoor unit
9 Remote controller

Complete system example (3 systems)

When using 1 remote controller for 1 indoor unit (Normal operation)

(See figure 15)

For group control or use with 2 remote controllers (See figure 17)
When including BS unit (See figure 13)

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

NOTE

PRECAUTIONS

■ 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.

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

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

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

Field setting must be made on the remote controller in function of 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 settings" in the
installation manual of the remote controller.

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.)

10

(20)

12

(22)

15

(25)

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 remote control 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 sensor selection

2

Setting for display of time
between 2 filter cleaning display

3

indications

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.

Fan setting during thermostat

3

OFF at heating operation

Differential automatic

4

changeover

Auto-restart after power failure Disabled Enabled — —

5

Fixed cool/heat master Disabled Enabled — —

9

Drain pump operation +

3

humidifier interlock

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

Ultra-long­life filter

Long-life
filter

Standard
filter

06 5°C
07 6°C
08 7°C

Second code No. (Note 2)

01 02 03 04

±10,000 hrs.

±2,500 hrs. ±1,250 hrs.

Light

±200 hrs. ±100 hrs.

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

Display Do not display — —

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

Thermostat-on +
compressor run

Forced OFF

LL Set speed

0°C 1°C 2°C

Equipped Not equipped — —

±5,000 hrs.

Heavy

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

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

— Operation

ON/OFF
operation

——

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

——

——

OFF
(See note 3)

—

Mal­function

—

3°C
(See
note 7)

FXSQ20~140P7VEB
VRV System air conditioners
4PW56483-1

Installation and operation manual

8

External static pressure settings

Settings for external static pressure can be achieved in 2 ways:

Using the airflow automatic adjustment function

Airflow automatic adjustment is the volume of blow-off air that
has been automatically adjusted to the rated quantity.

1 Make sure the test run is done with a dry coil.

If the coil is not dry, run the unit for 2 hours with fan only to dry
the coil.

2 Check if the power supply wiring to the air conditioning unit is

completed along with the duct installation.
If a closing damper is installed in the air conditioning unit, make

sure that it is open.
Also check if the air filter is properly attached into the air
passage on the air suction side of the air conditioning unit.

3 If there is more than one air inlet and outlet, adjust the dampers

so that the airflow rate of each air inlet and outlet is conform with
the designed airflow rate.

Make sure the air conditioning unit is in fan operation mode.
Press and set the airflow adjustment button on the remote
controller to change the airflow rate to H or L.

4 Setting the airflow automatic adjustment settings.

When the air conditioning unit is running in fan operation mode
perform the next steps:

- stop the air conditioning unit,

- go to field setting mode,

- select mode No. 21 (or 11 in case of group setting),

- set the first code No. to "7",

- set the second code No. to "03".
Return to normal operating mode after setting these settings
and press the ON/OFF operation button. The operation lamp will
light up and the air conditioning unit will start the fan operation
for airflow automatic adjustment.

Do not adjust the dampers during fan operation for
airflow automatic adjustment.

After 1 to 8 minutes, the air conditioning unit stops operating
automatically when the fan operation for airflow automatic
adjustment has been carried out, the operation lamp will be off.

Mode

No.

11 (21) 7

5 When the air conditioning unit has stopped, check on an indoor

unit if the second code No. of mode No. 21 is set to "02".
If the air conditioning unit does not stop operating or the second

code No. is not "02", repeat step 4.
If the outdoor unit is not turned on, the display on the remote
controller will show "U4" or "UH" (refer to "Test operation" on

page 10). However, you can continue setting this function

because these messages are only applicable to outdoor units.
After setting this function, be sure to turn on the outdoor unit
before performing the test operation on the outdoor unit.
If any other error display occurs on the display of the remote
controller, refer to "Test operation" on page 10 and the operation
manual of the outdoor unit. Check the defective point.

First

code No.

Second

code No.

Setting content

01 Airflow adjustment is OFF
02 Completion of airflow adjustment
03 Start of airflow adjustment

■ If the external static pressure of the FXSQ140P7VEB
is higher than 100 Pa, do not use airflow automatic
adjustment function.

■ If there is no change after airflow adjustment in the
ventilation paths, be sure to perform setting the airflow
automatic adjustment again.

■ Contact your dealer if there is no change after
performing airflow adjustment in the ventilation paths,
after performing the test operation of the outdoor unit
or when the air conditioning unit is moved to another
location.

■ If booster fans, an outdoor air processing unit or HRV
via duct are used, do not use airflow automatic
adjustment control with a remote controller.

■ If the ventilation paths have been changed, perform
the setting of the airflow automatic adjustment again
as described above from step 3 onwards.

Using the remote controller

Check on an indoor unit if the second code of mode No. 21 is set to
"01" (= factory setting). Change the second code according to the
external static pressure of the duct to be connected as shown in
table 2.

NOTE

The second code No. is set to "03" by default.

Ta ble 2

External static pressure (Pa)

FXSQ

Mode

No.

13

(23)

First
code

No.

6

Second

code

No.

03
04
05
06
07
08
09
10
11
12
13

20 25 32 40 50 63 80 100 125 140

30 30 30 30 30 30 40 40 50 50
35 35 35 35 35 40 45 50 55 55
40 40 40 40 40 50 50 60 60 60
45 45 45 45 45 60 60 70 70 70
50 50 50 50 50 70 70 80 80 80
55 55 55 60 60 80 80 90 90 90
60 60 60 70 70 90 90 100 100 100
65 65 65 80 80 100 100 110 110 110
70 70 70 90 90 — — 120 120 120
———100100————130
—————————140

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

■ 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 18)
(The remote controller PC board is attached to the upper part of
the remote controller.)

■ Tu rn the main/sub changeover switch on one of the two remote
controller PC boards to "S". (See figure 19)
(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

Installation and operation manual

9

FXSQ20~140P7VEB

VRV System air conditioners

4PW56483-1

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 board (remote controller to transmission wiring).

Wire specification Sheathed vinyl cord or cable (2 wire)

Gauge

Length Max. 100 m
External terminal Contact that can ensure the minimum

F2 T1 T2

FORCED
OFF

Input A

0.75-1.25 mm

applicable load of 15 V DC, 10 mA

2

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 ➜ on: turns on the unit

Input "off" enables control input on ➜ off: turns off the unit by

(impossible by remote controllers)

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 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 20)

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.

TEST OPERATION

Refer to the installation manual of the outdoor unit.
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.

Error code Meaning

A8 Error in power supply to indoor unit

C1

C6

U3 Test operation of the indoor unit has not been finished

Tr ansmission error between fan driver PCB and controller
PCB of the indoor unit

Improper combination of fan driver PCB of the indoor unit or
setting failure in control PCB type

If any of the items in following table are displayed on the remote
controller, there may be a problem with the wiring or power, so check
the wiring again.

Error code Meaning

There is a short circuit at the forced off terminals (T1, T2)

U4 or UH

no display

- The power on the outdoor unit is off

- The outdoor unit has not been wired for power supply

- Incorrect transmission of forced off wiring

- The power on the indoor unit is off

- The indoor unit has not been wired for power supply

- Incorrect transmission wiring, forced off wiring or remote
controller wiring

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.

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

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

■ If the main power supply is turned off during
operation, operation will restart automatically after the
power turns back on again.

INSTALLATION OF THE DECORATION PANEL

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

between the unit body and decoration panel.

FXSQ20~140P7VEB
VRV System air conditioners
4PW56483-1

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.

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

1 Open the suction grille. (Only for bottom suction.)

Slide both knobs simultaneously as shown and then pull them
downward.

Installation and operation manual

10

If chains are present, unhook the chains.

5 Shut the air inlet grille. (Only for bottom suction.)

Refer to item no. 1.

6 After turning on the power, press FILTER SIGN RESET button.

The "TIME TO CLEAN AIR FILTER" display is turned off.

How to clean air outlet and outside panels

2 Remove the air filters.

Remove the air filters by pulling their cloth upward (rear suction)
or backward (bottom suction).

rear suction

bottom suction

3 Clean the air filter.

Use vacuum cleaner (A) or wash the air filter with water (B).

(A) Using a vacuum cleaner

(B) Washing with water

■ Clean with soft cloth.

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

detergent.

■ Clean the air inlet grille when it is shut.

NOTE

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

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

Start up after a long stop

Confirm the following:

■ Check that the air inlet and outlet are not blocked. Remove any
obstacle.

■ Check if the earth is connected.

Clean the air filter and outside panels.

■ After cleaning the air filter, make sure to attach it.

Tu rn on the main power supply switch.

■ The control panel display lights when the power is turned on.

■ To protect the unit, turn on the main power switch at least

6 hours before operation.

What to do when stopping the system for a long period

When the air filter is very dirty, use soft brush and neutral
detergent.
Remove water and dry in the shade.

4 Fix the air filter.

rear suction

bottom suction

Tu rn on FAN OPERATION for half a day and dry the unit.

■ Refer to the operation manual of the outdoor unit.

Cut off the power supply.

■ When the main power switch is turned on, some wattage is
being consumed even if the system is not operating.

■ The remote controller display is turned off when the main power
switch is turned off.

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.

Align the two hanger brackets and push the two clips in their
place (pull the cloth if necessary).
Confirm that four hangers are fixed.

Installation and operation manual

11

FXSQ20~140P7VEB

VRV System air conditioners

4PW56483-1

WIRING DIAGRAM

: FIELD WIRING BLK : BLACK ORG : ORANGE
: CONNECTOR BLU : BLUE PNK : PINK
: WIRE CLAMP BRN : BROWN RED : RED

: PROTECTIVE EARTH (SCREW)
L: LIVE GRY : GREY YLW : YELLOW
N: NEUTRAL

GRN : GREEN WHT : WHITE

A1P........................ PRINTED CIRCUIT BOARD

A2P........................ PRINTED CIRCUIT BOARD (FAN)

A3P........................ PRINTED CIRCUIT BOARD (CAPACITOR)

(only for 63~140 units)

C1,C2,C3............... CAPACITOR

F1U........................ FUSE (T, 3.15 A, 250 V)

F2U........................ FUSE (T, 5 A, 250 V)

F3U,F4U................ FUSE (T, 6.3 A, 250 V)

HAP ....................... LIGHT EMITTING DIODE

(SERVICE MONITOR - GREEN)

KPR,K1R ............... MAGNETIC RELAY

L1R........................ REACTOR

M1F ....................... MOTOR (FAN)

M1P ....................... MOTOR (DRAIN PUMP)

PS.......................... SWITCHING POWER SUPPLY

Q1DI ...................... EARTH LEAK DETECTOR

R1.......................... RESISTOR (CURRENT LIMITING)

R2.......................... CURRENT SENSING DEVICE

R3,R4 .................... RESISTOR (ELECTRIC DISCHARGE)

R1T........................ THERMISTOR (SUCTION AIR)

R2T........................ THERMISTOR (LIQUID)

R3T ........................THERMISTOR (GAS)

R5T ........................THERMISTOR NTC (CURRENT LIMITING)

S1L.........................FLOAT SWITCH

V1R........................DIODE BRIDGE

V2R........................POWER MODULE

X1M........................TERMINAL STRIP (POWER SUPPLY)

X2M........................TERMINAL STRIP (CONTROL)

Y1E ........................ELECTRONIC EXPANSION VALVE

Z1C,Z2C ................NOISE FILTER (FERRITE CORE)

Z1F.........................NOISE FILTER

CONNECTOR OPTIONAL ACCESSORY

X28A ......................CONNECTOR (POWER SUPPLY FOR WIRING)

X33A ......................CONNECTOR (FOR WIRING)

X35A ......................CONNECTOR (ADAPTOR)

X38A ......................CONNECTOR (FOR WIRING)

WIRED REMOTE CONTROLLER

R1T ........................THERMISTOR (AIR)

SS1 ........................SELECTOR SWITCH (MAIN/SUB)

WIRED REMOTE CONTROLLER :
(OPTIONAL ACCESSORY) :
SWITCH BOX (INDOOR) :
TRANSMISSION WIRING :
CENTRAL REMOTE CONTROLLER :
INPUT FROM OUTSIDE :

NOTE

1. USE COPPER CONDUCTORS ONLY.

2. WHEN USING THE CENTRAL REMOTE CONTROLLER, SEE MANUAL FOR CONNECTION TO THE UNIT.

3. 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.

FXSQ20~140P7VEB
VRV System air conditioners
4PW56483-1

Installation and operation manual

12

NOTES NOTES

12

5

13

Control box

IN/D OUT/D

F

L N

4

1

1 F2 F1 F2

Control box

IN/DOUT/D

F

1 F2 F1 F2

1

6

23

P1P2F1F2T1T

12

14

L N

P1P

2

2

2

3

14

5

10

13

15

Control box

1

L N

IN/D OUT/D

F1 F2 F1 F2

L

L NL N

N

13

6
9

L N

811 6
7 12

14 15

16

1

2

3

4
5
6

7

8

9

L N L N L N L N

P1P

2

F1F2T1T

2

2

P1P

2

P1P2F1F2T1T

P1P

2

2

P1P2F1F2T1T

2

P1P2F1F2T1T

2

4

P1P

2

P1P

2

3

17

1

L N

2

3

Control box

IN/D OUT/D

F1 F2 F1 F2

L N

P1P

2

F1F2T1T

P1P

L N L N L N

2

P1P2F1F2T1T

2

P1P2F1F2T1T

2

P1P2F1F2T1T

2

4

P1P

P1P

2

2

2

5

16 17

18

19

2

S

S

M

3

S

M

18 19

20

21

1

3
4

SETTING

20

4PW56483-1

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