Daikin FFA25A2VEB, FFA35A2VEB, FFA50A2VEB, FFA60A2VEB User Manual [ru]

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Installation and operation

manual

Split system air conditioners

FFA25A2VEB FFA35A2VEB FFA50A2VEB FFA60A2VEB

Installation and operation manual

Split system air conditioners

English

Directivelor, cu amendamentele respective.

<A>

<C>

DEKRA (NB0344)

2178265.0551-EMC

DAIKIN.TCF.033A3/03-2017

Direktive z vsemi spremembami.

Direktiivid koos muudatustega.

Директиви, с техните изменения.

Direktyvose su papildymais.

Direktīvās un to papildinājumos.

Smernice, v platnom znení.

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Direktiver, med senere ændringer.

Direktiv, med företagna ändringar.

Direktiver, med foretatte endringer.

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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:

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 modeļu gaisa kondicionētāji, uz kuriem attiecas šī deklarācija:

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

tamamen kendi sorumluluǧunda olmak üzere bu bildirinin ilgili olduǧu klima modellerinin aşaǧıdaki gibi olduǧunu 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

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návodom:

Directives, as amended.

Direktiven, gemäß Änderung.

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

Directives, telles que modifiées.

010203040506070809

Değiştirilmiş halleriyle Yönetmelikler.

Direktiivejä, sellaisina kuin ne ovat muutettuina.

v platném znění.

Smjernice, kako je izmijenjeno.

irányelv(ek) és módosításaik rendelkezéseit.

z późniejszymi poprawkami.

както е изложено в <A> и оценено положително от

съгласно Сертификата<C>.

kaip nustatyta <A> ir kaip teigiamai nuspręsta pagal

Sertifikatą<C>.

kā norādīts <A> un atbilstoši pozitīvajam vērtējumam

saskaņā ar sertifikātu<C>.

Richtlijnen, zoals geamendeerd.

Directivas, según lo enmendado.

Direttive, come da modifica.

Οδηγιών, όπως έχουν τροποποιηθεί.

Directivas, conforme alteração em.

Директив со всеми поправками.

21Забележка*

22Pastaba*

23Piezīmes*

DICz*** je pooblaščen za sestavo datoteke s tehnično mapo.

DICz*** on volitatud koostama tehnilist dokumentatsiooni.

DICz*** е оторизирана да състави Акта за техническа конструкция.

DICz*** yra įgaliota sudaryti šį techninės konstrukcijos failą.

DICz*** ir autorizēts sastādīt tehnisko dokumentāciju.

Spoločnosť DICz*** je oprávnená vytvoriť súbor technickej konštrukcie.

DICz*** Teknik Yapı Dosyasını derlemeye yetkilidir.

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ako bolo uvedené v <A> a pozitívne zistené vsúlade

s osvedčením<C>.

<A>’da belirtildiği gibi ve <C>Sertifikasına göre

tarafından olumlu olarak değerlendirildiği gibi.

24Poznámka*

25Not*

a(z) <A> alapján, a(z) igazolta a megfelelést, a(z)

<C>tanúsítvány szerint.

zgodnie z dokumentacją <A>, pozytywną

opinią i Świadectwem<C>.

aşa cum este stabilit în <A> şi apreciat pozitiv de

în conformitate cu Certificatul<C>.

kot je določeno v <A> in odobreno s strani

vskladu scertifikatom<C>.

nagu on näidatud dokumendis <A> ja heaks kiidetud

järgi vastavalt sertifikaadile<C>.

DICz*** on valtuutettu laatimaan Teknisen asiakirjan.

Společnost DICz*** má oprávnění ke kompilaci souboru technické konstrukce.

DICz*** je ovlašten za izradu Datoteke o tehničkoj konstrukciji.

A DICz*** jogosult a műszaki konstrukciós dokumentáció összeállítására.

DICz*** ma upoważnienie do zbierania i opracowywania dokumentacji konstrukcyjnej.

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16Megjegyzés*

17Uwaga*

18Notă*

19Opomba*

20Märkus*

Machinery 2006/42/EC

Low Voltage 2014/35/EU

enligt <A> och godkänts av enligt

Certifikatet<C>.

som det fremkommer i <A> og gjennom positiv

bedømmelse av ifølge Sertifikat<C>.

jotka on esitetty asiakirjassa <A> ja jotka

on hyväksynyt Sertifikaatin<C> mukaisesti.

jak bylo uvedeno v <A> a pozitivně zjištěno

vsouladu sosvědčením<C>.

kako je izloženo u <A> i pozitivno ocijenjeno odstrane

Electromagnetic Compatibility 2014/30/EU

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

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:

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:

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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:

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

ob upoštevanju določb:

vastavalt nõuetele:

следвайки клаузите на:

laikantis nuostatų, pateikiamų:

ievērojot prasības, kas noteiktas:

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održiavajúc ustanovenia:

11Information*

12Merk*

13Huom*

bunun koşullarına uygun olarak:

delineato nel <A> e giudicato positivamente da

secondo il Certificato<C>.

όπως καθορίζεται στο <A> και κρίνεται θετικά

από το σύμφωνα με το Πιστοποιητικό<C>.

tal como estabelecido em <A> e com o parecer positivo

prema Certifikatu<C>.

14Poznámka*

15Napomena*

Η DICz*** είναι εξουσιοδοτημένη να συντάξει τον Τεχνικό φάκελο κατασκευής.

A DICz*** está autorizada a compilar a documentação técnica de fabrico.

Компания DICz*** уполномочена составить Комплект технической документации.

DICz*** er autoriseret til at udarbejde de tekniske konstruktionsdata.

DICz*** är bemyndigade att sammanställa den tekniska konstruktionsfilen.

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de de acordo com o Certificado<C>.

как указано в <A> и в соответствии сположительным

решением согласно Свидетельству<C>.

som anført i <A> og positivt vurderet af ihenhold til

Certifikat<C>.

DICz*** este autorizat să compileze Dosarul tehnic de construcţie.

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Tetsuya Baba

Managing Director

Plzen, 2nd of May 2017

DICz*** 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:

CE - DECLARATION-OF-CONFORMITY CE - DECLARACION-DE-CONFORMIDAD CE - DECLARAÇÃO-DE-CONFORMIDADE CE - ERKLÆRING OM-SAMSVAR CE - IZJAVA-O-USKLAĐENOSTI CE - IZJAVA O SKLADNOSTI CE - ATITIKTIES-DEKLARACIJA

CE - KONFORMITÄTSERKLÄRUNG CE - DICHIARAZIONE-DI-CONFORMITA CE - ЗАЯВЛЕНИЕ-О-СООТВЕТСТВИИ CE - ILMOITUS-YHDENMUKAISUUDESTA CE - MEGFELELŐSÉGI-NYILATKOZAT CE - VASTAVUSDEKLARATSIOON CE - ATBILSTĪBAS-DEKLARĀCIJA

CE - DECLARATION-DE-CONFORMITE CE - ΔHΛΩΣΗ ΣΥΜΜΟΡΦΩΣΗΣ CE - OVERENSSTEMMELSESERKLÆRING CE - PROHLÁŠENÍ-O-SHODĚ CE - DEKLARACJA-ZGODNOŚCI CE - ДЕКЛАРАЦИЯ-ЗА-СЪОТВЕТСТВИЕ CE - VYHLÁSENIE-ZHODY

CE - CONFORMITEITSVERKLARING CE - FÖRSÄKRAN-OM-ÖVERENSTÄMMELSE CE - DECLARAŢIE-DE-CONFORMITATE CE - UYGUNLUK-BEYANI

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

Daikin Industries Czech Republic s.r.o.

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06Nota*

07Σημείωση*

08Nota*

09Примечание*

10Bemærk*

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:

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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:

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

δηλώνει με αποκλειστική της ευθύνη ότι τα μοντέλα των κλιματιστικών συσκευών στα οποία αναφέρεται η παρούσα δήλωση:

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

06

FFA25A2VEB, FFA35A2VEB, FFA50A2VEB, FFA60A2VEB,

07

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) normatif(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) normativo(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:

είναι σύμφωνα με το(α) ακόλουθο(α) πρότυπο(α) ή άλλο έγγραφο(α) κανονισμών, υπό την προϋπόθεση ότι χρησιμοποιούνται

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σύμφωνα με τις οδηγίες μας:

following the provisions of:

gemäß den Vorschriften der:

conformément aux stipulations des:

EN60335-2-40,

overeenkomstig de bepalingen van:

010203040506070809

în urma prevederilor:

as set out in <A> and judged positively by

according to the Certificate<C>.

wie in <A> aufgeführt und von positiv

beurteilt gemäß Zertifikat<C>.

tel que défini dans <A> et évalué positivement par

conformément au Certificat<C>.

zoals vermeld in <A> en positief beoordeeld door

siguiendo las disposiciones de:

secondo le prescrizioni per:

με τήρηση των διατάξεων των:

de acordo com o previsto em:

в соответствии с положениями:

01Note*

02Hinweis*

03Remarque*

04Bemerk*

overeenkomstig Certificaat<C>.

como se establece en <A> y es valorado

positivamente por de acuerdo con el

Certificado<C>.

05Nota*

DICz*** is authorised to compile the Technical Construction File.

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DICz*** hat die Berechtigung die Technische Konstruktionsakte zusammenzustellen.

DICz*** est autorisé à compiler le Dossier de Construction Technique.

DICz*** is bevoegd om het Technisch Constructiedossier samen te stellen.

DICz*** está autorizado a compilar el Archivo de Construcción Técnica.

DICz*** è autorizzata a redigere il File Tecnico di Costruzione.

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***DICz = Daikin Industries Czech Republic s.r.o.

3P480520-1A

Table of contents

1 About the documentation 3

1.1 About this document.................................................................. 3

For the installer 4

2 About the box 4

2.1 Indoor unit ................................................................................. 4

2.1.1 To remove the accessories from the indoor unit......... 4

3 About the units and options 4

3.1 About the indoor unit ................................................................. 4

3.2 System layout............................................................................ 5

4 Preparation 5

4.1 Preparing installation site .......................................................... 5

4.1.1 Installation site requirements of the indoor unit .......... 5

5 Installation 5

5.1 Mounting the indoor unit............................................................ 5

5.1.1 Precautions when mounting the indoor unit................ 5

5.1.2 Guidelines when installing the indoor unit................... 5

5.1.3 Guidelines when installing the drain piping................. 6

5.2 Connecting the refrigerant piping .............................................. 8

5.2.1 About connecting the refrigerant piping ...................... 8

5.2.2 Precautions when connecting the refrigerant piping... 8

5.2.3 Guidelines when connecting the refrigerant piping..... 8

5.2.4 Pipe bending guidelines.............................................. 9

5.2.5 To flare the pipe end................................................... 9

5.2.6 To braze the pipe end................................................. 9

5.2.7 To connect the refrigerant piping to the indoor unit .... 9

5.3 Connecting the electrical wiring................................................. 9

5.3.1 About connecting the electrical wiring......................... 10

5.3.2 Precautions when connecting the electrical wiring ..... 10

5.3.3 Guidelines when connecting the electrical wiring ....... 10

5.3.4 Specifications of standard wiring components............ 10

5.3.5 To connect the electrical wiring on the indoor unit...... 10

6 Configuration 11

6.1 Field settings ............................................................................. 11

7 Commissioning 11

7.1 Overview: Commissioning......................................................... 11

7.2 Precautions when commissioning ............................................. 11

7.3 Checklist before commissioning................................................ 12

7.4 To perform a test run................................................................. 12

7.5 Error codes when performing a test run .................................... 13

8 Disposal 13

12.2.3 About the heating operation......................................... 16

12.2.4 To operate the system ................................................. 16

12.3 Using the dry program................................................................ 16

12.3.1 About the dry program ................................................. 16

12.3.2 To use the dry program................................................ 16

12.4 Adjusting the air flow direction.................................................... 16

12.4.1 About the air flow flap .................................................. 16

13 Maintenance and service 17

13.1 Cleaning the air filter, suction grille, air outlet and outside

panels ........................................................................................ 17

13.1.1 To clean the air filter .................................................... 17

13.1.2 To clean the suction grille ............................................ 17

13.1.3 To clean the air outlet and outside panels ................... 18

13.2 Maintenance after a long stop period ......................................... 18

13.3 Maintenance before a long stop period ...................................... 18

13.4 About the refrigerant................................................................... 18

13.5 After-sales service and warranty ................................................ 19

13.5.1 Warranty period ........................................................... 19

13.5.2 Recommended maintenance and inspection............... 19

13.5.3 Recommended maintenance and inspection cycles.... 19

13.5.4 Shortened maintenance and replacement cycles........ 19

14 Troubleshooting 20

14.1 Symptoms that are NOT system malfunctions ........................... 20

14.1.1 Symptom: The system does not operate ..................... 20

14.1.2 Symptom: The fan strength does not correspond to

the setting .................................................................... 20

14.1.3 Symptom: The fan direction does not correspond to

the setting .................................................................... 20

14.1.4 Symptom: White mist comes out of a unit (Indoor

unit) .............................................................................. 21

14.1.5 Symptom: White mist comes out of a unit (Indoor

unit, outdoor unit) ......................................................... 21

14.1.6 Symptom: The user interface display reads "U4" or

"U5" and stops, but then restarts after a few minutes.. 21

14.1.7 Symptom: Noise of air conditioners (Indoor unit)......... 21

14.1.8 Symptom: Noise of air conditioners (Indoor unit,

outdoor unit)................................................................. 21

14.1.9 Symptom: Noise of air conditioners (Outdoor unit)...... 21

14.1.10 Symptom: Dust comes out of the unit .......................... 21

14.1.11 Symptom: The units can give off odours...................... 21

14.1.12 Symptom: The outdoor unit fan does not spin ............. 21

14.1.13 Symptom: The display shows "88"............................... 21

14.1.14 Symptom: The compressor in the outdoor unit does

not stop after a short heating operation ....................... 21

15 Relocation 21 16 Disposal 21

1 About the documentation

9 Technical data 13

9.1 Piping diagram: Indoor unit ....................................................... 13

9.2 Wiring diagram .......................................................................... 14

For the user 15

10 About the system 15

10.1 System layout............................................................................ 15

11 User interface 15 12 Operation 15

12.1 Operation range ........................................................................ 15

12.2 Operating the system ................................................................ 16

12.2.1 About operating the system ........................................ 16

12.2.2 About cooling, heating, fan only, and automatic

operation ..................................................................... 16

FFA25~60A2VEB Split system air conditioners 4P456960-1 – 2017.03

1.1 About this document

Target audience

Authorised installers + end users

INFORMATION

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

Documentation set

This document is part of a documentation set. The complete set consists of:

Installation and operation manual

2 About the box

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4×

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e fdcb

g h

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▪ General safety precautions:

▪ Safety instructions that you must read before installing

▪ Format: Paper (in the box of the indoor unit)

▪ Indoor unit installation and operation manual:

▪ Installation and operation instructions

▪ Format: Paper (in the box of the indoor unit)

▪ Installer and user reference guide:

▪ Preparation of the installation, good practices, reference data,…

▪ Detailed step-by-step instructions and background information

for basic and advanced usage

▪ Format: Digital files on http://www.daikineurope.com/support-

and-manuals/product-information/

For the installer

2 About the box

2.1 Indoor unit

2.1.1 To remove the accessories from the indoor unit

a Paper pattern for installation (upper part of packing)

b General safety precautions

c Indoor unit installation and operation manual

d Washers for hanger bracket

e Screws

f Cable ties g Metal clamp h Sealing pads: Large (drain pipe), medium 1 (gas pipe),

medium 2 (liquid pipe), small (electrical wiring)

i Drain hose

j Insulation piece: Small (liquid pipe)

k Insulation piece: Large (gas pipe)

3 About the units and options

3.1 About the indoor unit

Use the system in the following temperature and humidity ranges for safe and effective operation.

For combination with R410A outdoor unit, refer to the following table:

Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer.

The original documentation is written in English. All other languages are translations.

Technical engineering data

▪ A subset of the latest technical data is available on the regional

Daikin website (publicly accessible).

▪ The full set of latest technical data is available on the Daikin

extranet (authentication required).

Outdoor units Cooling Heating

RR71~125 Outdoor

temperature Indoor

temperature

RQ71~125 Outdoor

temperature

Indoor temperature

RXS25~60 Outdoor

temperature

Indoor temperature

2MXS50 Outdoor

temperature

Indoor temperature

3MXS40~68

4MXS68~80

5MXS90

RZQG71~140 Outdoor

RZQSG71~140 Outdoor

RZQ200~250 Outdoor

For combination with R32 outdoor unit, refer to the following table:

Outdoor temperature

Indoor temperature

temperature

Indoor temperature

temperature

Indoor temperature

temperature

Indoor temperature

–15~46°CDB —

18~37°CDB

12~28°CWB

–5~46°CDB –9~21°CDB

18~37°CDB

12~28°CWB

–10~46°CDB –15~24°CDB

18~32°CDB 10~30°CDB

10~46°CDB –15~24°CDB

18~32°CDB 10~30°CDB

–10~46°CDB –15~24°CDB

18~32°CDB 10~30°CDB

–15~50°CDB –19~21°CDB

18~37°CDB

12~28°CWB

–15~46°CDB –14~21°CDB

20~37°CDB

14~28°CWB

–5~46°CDB –14~21°CDB

20~37°CDB

14~28°CWB

—

–10~15°CWB

10~27°CDB

–16~18°CWB

–20~15.5°CWB

10~27°CDB

–15~15.5°CWB

10~27°CDB

–15~15°CWB

10~27°CDB

Installation and operation manual

Split system air conditioners

FFA25~60A2VEB

4P456960-1 – 2017.03

4 Preparation

(mm)

≥1500

≥

2000

≥

4000

≥1500

ba dac

Outdoor units Cooling Heating

RXM25~60 Outdoor

temperature

Indoor

–10~46°CDB –15~24°CDB

–16~18°CWB

18~32°CDB 10~30°CDB

temperature

2MXM50

3MXM40~68

4MXM68~80

5MXM90 RZAG71~140 Outdoor

RZASG71~140 Outdoor

Indoor humidity ≤80%

Outdoor temperature

Indoor

–10~46°CDB –15~24°CDB

–16~18°CWB

18~32°CDB 10~30°CDB

temperature

–20~52°CDB –19.5~21°CDB

temperature

Indoor temperature

18~37°CDB

12~28°CWB

–20~15.5°CWB

10~27°CDB

–15~46°CDB –14~21°CDB

temperature

Indoor temperature

(a) To avoid condensation and water dripping out of the unit. If

the temperature or the humidity is beyond these conditions, safety devices may be put in action and the air conditioner may not operate.

20~37°CDB

14~28°CWB

–15~15.5°CWB

10~27°CDB

(a)

4 Preparation

4.1 Preparing installation site

4.1.1 Installation site requirements of the indoor unit

INFORMATION

The sound pressure level is less than 70dBA.

CAUTION

Appliance not accessible to the general public, install it in a secured area, protected from easy access.

This unit, both indoor and outdoor, is suitable for installation in a commercial and light industrial environment.

▪ Spacing. Mind the following requirements:

3.2 System layout

a Indoor unit b Outdoor unit c User interface d Suction air e Discharge air

f Refrigerant piping + interconnection cable g Drain pipe h Earth wiring

i Suction grille and air filter

A Minimum distance to the wall B Minimum and maximum distance to the floor (see below) C ≥295mm: In case of installation with BYFQ60B

≥300mm: In case of installation with BYFQ60C a Indoor unit b Lighting (the figure shows ceiling-mounted lighting, but

recessed lighting is also allowed)

c Air fan d Static volume (example: table)

▪ Minimum and maximum distance to the floor:

▪ Minimum: 2.5m to avoid accidental touching.

▪ Maximum: Depends on the air flow directions and the capacity

class. Also make sure the "Ceiling height" field setting corresponds with the actual situation. See Field settings.

5 Installation

5.1 Mounting the indoor unit

5.1.1 Precautions when mounting the indoor unit

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

5.1.2 Guidelines when installing the indoor unit

FFA25~60A2VEB Split system air conditioners 4P456960-1 – 2017.03

INFORMATION Optional equipment. When installing optional equipment,

also read the installation manual of the optional equipment. Depending on the field conditions, it might be easier to install the optional equipment first.

Installation and operation manual

5 Installation

(mm)

a1 b

b a2

4×

533

a cb d

(mm)

c d

A B

533

350

575

533

575

bba

▪ Decoration panel. Install the decoration panel always after

installing the unit.

▪ Ceiling strength. Check whether the ceiling is strong enough to

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

▪ For existing ceilings, use anchors.

▪ For new ceilings, use sunken inserts, sunken anchors or other

field supplied parts.

A 50~100mm

a Ceiling slab

b Anchor

c Long nut or turnbuckle

d Suspension bolt

e Suspended ceiling

▪ Suspension bolts. Use M8~M10 suspension bolts for installation.

Attach the hanger bracket to the suspension bolt. Fix it securely using a nut and washer from the upper and lower sides of the hanger bracket.

a1 Nut (field supply) a2 Double nut (field supply)

b Washer (accessories)

c Hanger bracket (attached to the unit)

▪ Paper pattern for installation (upper part of the packing). Use

the paper pattern to determine the correct horizontal positioning. It contains the necessary dimensions and centers. You can attach the paper pattern to the unit.

A 585~660mm: In case of installation with BYFQ60B

585~595 mm: In case of installation with BYFQ60C

B 700mm: In case of installation with BYFQ60B

620 mm: In case of installation with BYFQ60C

a Drain piping b Refrigerant piping c Hanger bracket pitch (suspension) d Unit

Then

If A B C

BYFQ60B

585mm

5mm 57.5mm

(= min.)

660mm

42.5mm 20mm

(= max.)

BYFQ60C

585mm

5mm 17.5mm

(= min.)

595mm

10mm 12.5mm

(= max.)

A Ceiling opening B Distance between the unit and the ceiling opening C Overlap between the decoration panel and the suspended

ceiling

▪ Level. Make sure the unit is level at all 4 corners using a level or a

water-filled vinyl tube.

a Centre of the unit

b Centre of the ceiling opening

c Paper pattern for installation (upper part of the packing)

d Screws (accessories)

▪ Ceiling opening and unit:

▪ Make sure the ceiling opening is within the following limits:

Minimum: 585mm to be able to fit the unit. Maximum: 660 mm in case of installation with BYFQ60B and

595 mm in case of installation with BYFQ60C ensure enough overlapping between the decoration panel and the suspended ceiling. If the ceiling opening is larger, add extra ceiling material.

▪ Make sure the unit and its hanger brackets (suspension) are

centered within the ceiling opening.

Installation and operation manual

a Level b Vinyl tube c Water level

NOTICE

Do NOT install the unit tilted. Possible consequence: If the unit is tilted against the direction of the condensate flow (the drain piping side is raised), the float switch might malfunction and cause water to drip.

5.1.3 Guidelines when installing the drain piping

Make sure condensation water can be evacuated properly. This involves:

▪ General guidelines

▪ Connecting the drain piping to the indoor unit

FFA25~60A2VEB

Split system air conditioners

4P456960-1 – 2017.03

5 Installation

1~1.5 m

≤300

0~75

1000~1500

(mm)

b c

≥100

(mm)

≤4 mm

A-A'

652

b a

d c

2~61

▪ Checking for water leaks

General guidelines

▪ Pipe length. Keep drain piping as short as possible. ▪ Pipe size. Keep the pipe size equal to or greater than that of the

connecting pipe (vinyl pipe of 25 mm nominal diameter and 32mm outer diameter).

▪ Slope. Make sure the drain piping slopes down (at least 1/100) to

prevent air from being trapped in the piping. Use hanging bars as shown.

a Hanging bar

O Allowed

X Not allowed

▪ Condensation. Take measures against condensation. Insulate

the complete drain piping in the building.

▪ Rising piping. If necessary to make the slope possible, you can

install rising piping.

▪ Drain hose inclination: 0~75mm to avoid stress on the piping

and to avoid air bubbles.

▪ Rising piping: ≤300 mm from the unit, ≤630~675 mm

(depending on the decoration panel used) perpendicular to the unit.

To connect the drain piping to the indoor unit

NOTICE

Incorrect connection of the drain hose might cause leaks, and damage the installation space and surroundings.

1 Push the drain hose as far as possible over the drain pipe

connection.

2 Tighten the metal clamp until the screw head is less than 4mm

from the metal clamp part.

3 Check for water leaks (see "To check for water leaks" on

page7).

4 Install the insulation piece (drain pipe). 5 Wind the large sealing pad (= insulation) around the metal

clamp and drain hose, and fix it with cable ties.

6 Connect the drain piping to the drain hose.

A ≤645mm: In case of installation with BYFQ60B

≤630mm: In case of installation with BYFQ60C

B 205mm: In case of installation with BYFQ60B

220mm: In case of installation with BYFQ60C a Metal clamp (accessory) b Drain hose (accessory) c Rising drain piping (vinyl pipe of 25mm nominal diameter

and 32mm outer diameter) (field supply) d Hanging bars (field supply)

▪ Combining drain pipes. You can combine drain pipes. Make

sure to use drain pipes and T-joints with the correct gauge for the operating capacity of the units.

A ≤645mm: In case of installation with BYFQ60B

a T-joint

≤630mm: In case of installation with BYFQ60C

a Drain pipe connection (attached to the unit) b Drain hose (accessory) c Metal clamp (accessory) d Large sealing pad (accessory) e Insulation piece (drain pipe) (accessory)

f Drain piping (field supply)

To check for water leaks

The procedure differs depending on whether electrical wiring is already finished. When electrical wiring is not finished yet, you need to temporarily connect the user interface and power supply to the unit.

When electrical wiring is not finished yet

1 Temporarily connect electrical wiring.

▪ Remove the control box cover (a). ▪ Connect the single-phase power supply (50Hz, 230V) to

connections No. 1 and No. 2 on the terminal block for power supply (d) and earth (c).

▪ Reattach the control box cover (a).

FFA25~60A2VEB Split system air conditioners 4P456960-1 – 2017.03

Installation and operation manual

5 Installation

a h

i e

P1P2

TRANSM.

WIRING

F1 F2

OFF

FORCED

T1 T2

≥100 mm

e d

a Control box cover

b Inter-unit wiring

c Earth cable

d Terminal block for power supply

e Clamp

f Terminal board for transmission wiring g Opening for cables h Wiring diagram label (on the back of the control box lid)

i Remote controller wiring

2 Turn ON the power. 3 Start cooling operation (see "7.4 To perform a test run" on

page12).

4 Gradually pour approximately 1 l of water through the air

discharge outlet, and check for leaks.

5.2 Connecting the refrigerant piping

DANGER: RISK OF BURNING

5.2.1 About connecting the refrigerant piping

Before connecting the refrigerant piping

Make sure the outdoor and indoor unit are mounted.

Typical workflow

Connecting the refrigerant piping involves:

▪ Connecting the refrigerant piping to the outdoor unit

▪ Connecting the refrigerant piping to the indoor unit

▪ Insulating the refrigerant piping

▪ Keeping in mind the guidelines for:

▪ Pipe bending

▪ Flaring pipe ends

▪ Brazing

▪ Using the stop valves

5.2.2 Precautions when connecting the refrigerant piping

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

DANGER: RISK OF BURNING

a Plastic watering can

b Service drain outlet (with rubber plug). Use this outlet to

drain water from the drain pan.

c Drain pump location

d Drain pipe connection

e Drain pipe

5 Turn OFF the power. 6 Disconnect the electrical wiring.

▪ Remove the control box cover. ▪ Disconnect the power supply and earth. ▪ Reattach the control box cover.

When electrical wiring is finished already

1 Start cooling operation (see "7.4 To perform a test run" on

page12).

2 Gradually pour approximately 1 l of water through the air

discharge outlet, and check for leaks (see When electrical wiring is not finished yet).

Installation and operation manual

5.2.3 Guidelines when connecting the refrigerant piping

Take the following guidelines into account when connecting pipes:

▪ Coat the flare inner surface with ether oil or ester oil when

connecting a flare nut. Tighten 3 or 4 turns by hand, before tightening firmly.

▪ Always use 2 wrenches together when loosening a flare nut.

▪ Always use a spanner and torque wrench together to tighten the

flare nut when connecting the piping. This to prevent nut cracking and leaks.

a Torque wrench b Spanner c Piping union d Flare nut

FFA25~60A2VEB

Split system air conditioners

4P456960-1 – 2017.03

5 Installation

R=0.4~0.8

45°

±2

90°

±2

a b

a b c d e

A B

a dc e fb b

Piping size

(mm)

Tightening

torque (N•m)

Flare

dimensions (A)

Flare shape

(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

5.2.4 Pipe bending guidelines

Use a pipe bender for bending. All pipe bends should be as gentle as possible (bending radius should be 30~40mm or larger).

5.2.5 To flare the pipe end

CAUTION

▪ Incomplete flaring may cause refrigerant gas leakage.

▪ Do NOT re-use flares. Use new flares to prevent

refrigerant gas leakage.

▪ Use flare nuts that are included with the unit. Using

different flare nuts may cause refrigerant gas leakage.

1 Cut the pipe end with a pipe cutter. 2 Remove burrs with the cut surface facing down so that the

chips do not enter the pipe.

a Cut exactly at right angles. b Remove burrs.

3 Remove the flare nut from the stop valve and put the flare nut

on the pipe.

4 Flare the pipe. Set exactly at the position as shown in the

following illustration.

a Refrigerant piping b Part to be brazed c Taping d Manual valve e Pressure-reducing valve

f Nitrogen

▪ Do NOT use anti-oxidants when brazing pipe joints.

Residue can clog pipes and break equipment.

▪ Do NOT use flux when brazing copper-to-copper refrigerant

piping. Use phosphor copper brazing filler alloy (BCuP), which does not require flux. Flux has an extremely harmful influence on refrigerant piping systems. For instance, if chlorine based flux is used, it will cause pipe corrosion or, in particular, if the flux contains fluorine, it will deteriorate the refrigerant oil.

5.2.7 To connect the refrigerant piping to the indoor unit

WARNING: FLAMMABLE MATERIAL

The R32 refrigerant (if applicable) in this unit is mildly flammable.

▪ Pipe length. Keep refrigerant piping as short as possible. ▪ Flare connections. Connect refrigerant piping to the unit using

flare connections.

▪ Insulation. Insulate the refrigerant piping on the indoor unit as

follows:

(a)

(a) Refer to the outdoor unit specifications for the type of

refrigerant to be used.

Flare tool for

R410A or R32

(clutch type)

Conventional flare tool

Clutch type

(Ridgid-type)

Wing nut type (Imperial-type)

A 0~0.5mm 1.0~1.5mm 1.5~2.0mm

5 Check that the flaring is properly made.

a Flare’s inner surface must be flawless. b The pipe end must be evenly flared in a perfect circle. c Make sure the flare nut is fitted.

5.2.6 To braze the pipe end

The indoor unit and outdoor unit have flare connections. Connect both ends without brazing. If brazing should be needed, take the following into account:

▪ When brazing, blow through with nitrogen to prevent creation of

large quantities of oxidised film on the inside of the piping. This film adversely affects valves and compressors in the refrigerating system and prevents proper operation.

▪ Set the nitrogen pressure to 20 kPa (0.2 bar) (just enough so it

can be felt on the skin) with a pressure-reducing valve.

A Gas piping B Liquid piping

a Insulation material (field supply) b Cable tie (accessory) c Insulation pieces: Large (gas pipe), small (liquid pipe)

(accessories)

d Flare nut (attached to the unit) e Refrigerant pipe connection (attached to the unit)

f Unit

g Sealing pads: Medium 1 (gas pipe), medium 2 (liquid pipe)

(accessories)

1 Turn up the seams of the insulation pieces. 2 Attach to the base of the unit. 3 Tighten the cable ties on the insulation pieces. 4 Wrap the sealing pad from the base of the unit to the top of

the flare nut.

NOTICE

Make sure to insulate all refrigerant piping. Any exposed piping might cause condensation.

5.3 Connecting the electrical wiring

DANGER: RISK OF ELECTROCUTION

FFA25~60A2VEB Split system air conditioners 4P456960-1 – 2017.03

Installation and operation manual

5 Installation

1~ 50 Hz

220-240 V

WARNING

ALWAYS use multicore cable for power supply cables.

WARNING

If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.

5.3.1 About connecting the electrical wiring

Typical workflow

Connecting the electrical wiring typically consists of the following stages:

1 Making sure the power supply system complies with the

electrical specifications of the units. 2 Connecting the electrical wiring to the outdoor unit. 3 Connecting the electrical wiring to the indoor unit. 4 Connecting the main power supply.

5.3.2 Precautions when connecting the

electrical wiring

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

DANGER: RISK OF ELECTROCUTION

WARNING

ALWAYS use multicore cable for power supply cables.

WARNING

If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.

5.3.3 Guidelines when connecting the electrical

wiring

Tightening torques

Wiring Screw size Tightening torque

(N•m)

Interconnection cable (indoor↔outdoor)

User interface cable M3.5 0.79~0.97

M4 1.18~1.44

5.3.5 To connect the electrical wiring on the indoor unit

NOTICE

▪ Follow the wiring diagram (delivered with the unit,

located at the inside of the service cover).

▪ For instructions on how to connect the decoration panel

and the sensor kit, see the wiring instruction sheet (delivered with the unit, inside the accessory bag).

▪ Make sure the electrical wiring does NOT obstruct

proper reattachment of the service cover.

It is important to keep the power supply and the transmission wiring separated from each other. In order to avoid any electrical interference the distance between both wiring should always be at least 50mm.

NOTICE

Be sure to keep the power line and transmission line apart from each other. Transmission wiring and power supply wiring may cross, but may not run parallel.

1 Remove the service cover. 2 User interface cable: Route the cable through the frame,

connect the cable to the terminal block, and fix the cable with a cable tie.

3 Interconnection cable (indoor↔outdoor): Route the cable

through the frame, connect the cable to the terminal block (make sure the numbers match with the numbers on the outdoor unit, and connect the earth wire), and fix the cable with a cable tie.

4 Divide the small sealing (accessory) and wrap it around the

cables to prevent water from entering the unit. Seal all gaps to prevent small animals from entering the system.

WARNING

Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire.

5 Reattach the service cover.

▪ Following installation is for pair type or multi-system. For more

installation options, see the Installer reference guide of the indoor unit.

5.3.4 Specifications of standard wiring components

Component Specification

Interconnection cable (indoor↔outdoor)

User interface cable Vinyl cords with 0.75 to

Installation and operation manual

Minimum cable section of

2.5mm² and applicable for

1.25mm² sheath or cables (2‑core wires)

Maximum 500m

230V

a Interconnection cable b Power supply cable c Earth leakage circuit breaker d Fuse

e1 Main user interface

FFA25~60A2VEB

Split system air conditioners

4P456960-1 – 2017.03

6 Configuration

a b c

6 Configuration

6.1 Field settings

Make the following field settings so that they correspond with the actual installation setup and with the needs of the user:

▪ Ceiling height

▪ Air flow direction

▪ Air volume when thermostat control is OFF

▪ Time to clean air filter

Setting: Ceiling height

This setting must correspond with the actual distance to the floor, capacity class and air flow directions.

▪ For 3-way and 4-way air flows (which require an optional blocking

pad kit), see the installation manual of the optional blocking pad kit.

▪ For all-round air flow, use the table below.

If the

distance to

the floor is

M C1 C2

(m)

≤2.7 13 (23) 0 01

2.7<x≤3.0 02

3.0<x≤3.5 03

Setting: Air flow direction

This setting must correspond with the actual used air flow directions. See the installation manual of the optional blocking pad kit and the manual of the user interface.

Default: 01 (= all-round air flow)

Example:

a All-round air flow b 3-way air flow (1 air outlet closed) (optional blocking pad kit

required)

c 2-way air flow (2 air outlets closed) (optional blocking pad

kit required)

Setting: Air volume when thermostat control is OFF

This setting must correspond with the needs of the user. It determines the fan speed of the indoor unit during thermostat OFF condition.

1 If you have set the fan to operate, set the air volume speed:

Then

If you want Then

Outdoor unit M C1 C2

General 2MX+3MX

+4MX+5MX

During cooling operation

During heating operation

LL Setup volume

Monitoring 1212

Setup volume2Monitoring 2

6 01

(22)

3 01

(22)

Setting: Time to clean air filter

This setting must correspond with the air contamination in the room. It determines the interval at which the TIME TO CLEAN AIR FILTER notification is displayed on the user interface. When using a wireless user interface, you must also set the address (see the installation manual of the user interface).

If you want an interval of…

(air contamination)

M C1 C2

Then

±2500h (light) 10 (20) 0 01 ±1250h (heavy) 02 No notification 3 02

7 Commissioning

NOTICE

NEVER operate the unit without thermistors and/or pressure sensors/switches. Burning of the compressor might result.

7.1 Overview: Commissioning

This chapter describes what you have to do and know to commission the system after it is installed.

Typical workflow

Commissioning typically consists of the following stages: 1 Checking the "Checklist before commissioning". 2 Performing a test run for the system.

7.2 Precautions when commissioning

INFORMATION

During the first running period of the unit, the required power may be higher than stated on the nameplate of the unit. This phenomenon is caused by the compressor, that needs a continuous run time of 50 hours before reaching smooth operation and stable power consumption.

(1)

Field settings are defined as follows: ▪ M: Mode number – First number: for group of units – Number between brackets: for individual unit ▪ C1: First code number ▪ C2: Second code number

▪ : Default

(2)

Fan speed: ▪ LL: Low fan speed ▪ Setup volume: The fan speed corresponds to the speed the user has set (low, medium, high) using the fan speed button

on the user interface.

▪ Monitoring 1, 2: The fan is OFF, but runs for a short time every 6minutes to detect the room temperature by Low fan

speed (1) or by Setup volume (2).

FFA25~60A2VEB Split system air conditioners 4P456960-1 – 2017.03

Installation and operation manual

7 Commissioning

A B

Cool

Set to

28°C

Return Setting

Service Settings 1/3

Test Operation

Maintenance Contact Field Settings Demand Min Setpoints Differential Group Address

Cool

Return Setting

Test Operation

NOTICE

Before starting up the system, the unit MUST be energised for at least 6 hours. The crankcase heater needs to heat up the compressor oil to avoid oil shortage and compressor breakdown during startup.

NOTICE

NEVER operate the unit without thermistors and/or pressure sensors/switches. Burning of the compressor might result.

NOTICE

Do NOT operate the unit until the refrigerant piping is complete (when operated this way, the compressor will break).

NOTICE Cooling operation mode. Perform the test run in cooling

operation mode so that stop valves failing to open can be detected. Even if the user interface was set to heating operation mode, the unit will run in cooling operation mode during 2‑3 minutes (although the user interface will display the heating icon), and then automatically switch to heating operation mode.

NOTICE

If you cannot operate the unit in test run, see "7.5 Error

codes when performing a test run"on page13.

The stop valves (gas and liquid) on the outdoor unit are fully open.

7.4 To perform a test run

This task is only applicable when using the BRC1E52 or BRC1E53 user interface. When using any other user interface, see the installation manual or service manual of the user interface.

NOTICE

Do not interrupt the test run.

INFORMATION Backlight. To perform an ON/OFF action on the user

interface, the backlight does not need to be lit. For any other action, it needs to be lit first. The backlight is lit for ±30seconds when you press a button.

1 Perform introductory steps.

# Action

1 Open the liquid stop valve (A) and gas stop valve (B)

by removing the stem cap and turning counterclockwise with a hex wrench until it stops.

WARNING

If the panels on the indoor units are not installed yet, make sure to power OFF the system after finishing the test run. To do so, turn OFF operation via the user interface. Do NOT stop operation by turning OFF the circuit breakers.

7.3 Checklist before commissioning

Do NOT operate the system before the following checks are OK:

You read the complete installation instructions, as described in the installer reference guide.

The indoor units are properly mounted.

In case a wireless user interface is used: The indoor unit decoration panel with infrared receiver is installed.

The outdoor unit is properly mounted.

There are NO missing phases or reversed phases.

The system is properly earthed and the earth terminals are tightened.

The fuses or locally installed protection devices are installed according to this document, and have not been bypassed.

The power supply voltage matches the voltage on the identification label of the unit.

There are NO loose connections or damaged electrical components in the switchbox.

The insulation resistance of the compressor is OK.

2 Close the service cover to prevent electric shocks. 3 Turn ON power for at least 6hours before starting

operation to protect the compressor.

4 On the user interface, set the unit to cooling operation

mode.

2 Start the test run

# Action Result

1 Go to the home menu.

2 Press at least 4seconds. The Service Settings menu

is displayed.

3 Select Test Operation.

4 Press. Test Operation is

displayed on the home menu.

There are NO damaged components or squeezed pipes on the inside of the indoor and outdoor units.

There are NO refrigerant leaks.

The correct pipe size is installed and the pipes are properly insulated.

Installation and operation manual

5 Press within 10seconds. Test run starts.

FFA25~60A2VEB

Split system air conditioners

4P456960-1 – 2017.03

8 Disposal

Return Setting

Air Volume/direction

Air Volume Direction

Position 0

Low

Return Setting

Air Volume/direction

Air Volume Direction

Low

Position 0

Return Setting

Service Settings 1/3

Test Operation

Maintenance Contact Field Settings Demand Min Setpoints Differential Group Address

3 Check operation for 3minutes. 4 Check operation of the airflow direction.

# Action Result

1 Press.

2 Select Position 0.

3 Change the position. If the airflow flap of the

indoor unit moves, operation is OK.

If not, operation is not OK.

4 Press. The home menu is

displayed.

5 Stop the test run.

# Action Result

1 Press at least 4seconds. The Service Settings menu

is displayed.

Error code Possible cause

U2 ▪ There is a voltage imbalance.

▪ There is a missing phase in case of

three-phase power supply units. Note: Operation will be impossible. Turn OFF the power, recheck the wiring, and switch

two of the three electrical wires. U4 or UF The inter-unit branch wiring is not correct. UA The outdoor and indoor unit are

incompatible.

8 Disposal

NOTICE

Do not try to dismantle the system yourself: the dismantling of the system, treatment of the refrigerant, oil and other parts must comply with applicable legislation. Units must be treated at a specialized treatment facility for reuse, recycling and recovery.

9 Technical data

▪ A subset of the latest technical data is available on the regional

Daikin website (publicly accessible).

▪ The full set of latest technical data is available on the Daikin

extranet (authentication required).

2 Select Test Operation.

3 Press. The unit returns to normal

operation, and the home menu is displayed.

7.5 Error codes when performing a test run

If the installation of the outdoor unit has NOT been done correctly, the following error codes may be displayed on the user interface:

Error code Possible cause

Nothing displayed

(the currently set temperature is not displayed)

E3, E4 or L8 ▪ The stop valves are closed.

E7 There is a missing phase in case of three-

L4 The air inlet or air outlet is blocked. U0 The stop valves are closed.

▪ The wiring is disconnected or there is a

wiring error (between power supply and outdoor unit, between outdoor unit and indoor units, between indoor unit and user interface).

▪ The fuse on the outdoor or indoor unit

PCB has blown.

▪ The air inlet or air outlet is blocked.

phase power supply units. Note: Operation will be impossible. Turn

OFF the power, recheck the wiring, and switch two of the three electrical wires.

9.1 Piping diagram: Indoor unit

a Liquid pipe connection b Gas pipe connection c Heat exchanger

FFA25~60A2VEB Split system air conditioners 4P456960-1 – 2017.03

Installation and operation manual

9 Technical data

Unified Wiring Diagram Legend

For applied parts and numbering refer to the wiring diagram sticker supplied on the unit. Part numbering is realized by Arabic numbers in ascending order for each part and

is represented in the overview below by symbol “*” in the part code.

: CIRCUIT BREAKER : PROTECTIVE EARTH

: CONNECTION : PROTECTIVE EARTH (SCREW)

: CONNECTOR

: RECTIFIER

: EARTH : RELAY CONNECTOR

: FIELD WIRING : SHORT CIRCUIT CONNECTOR

: FUSE : TERMINAL

INDOOR

: INDOOR UNIT : TERMINAL STRIP

OUTDOOR

: OUTDOOR UNIT : WIRE CLAMP

BLK : BLACK GRN : GREEN PNK : PINK WHT : WHITE

BLU : BLUE GRY : GREY PRP, PPL : PURPLE YLW : YELLOW

BRN : BROWN ORG : ORANGE RED : RED

A*P : PRINTED CIRCUIT BOARD PS : SWITCHING POWER SUPPLY

BS* : PUSH BUTTON ON / OFF, OPERATION SWITCH PTC* : THERMISTOR PTC

BZ, H*O : BUZZER Q* : INSULATED GATE BIPOLAR TRANSISTOR (IGBT)

C* : CAPACITOR Q*DI : EARTH LEAK CIRCUIT BREAKER

AC*, CN*, E*, HA*, HE, HL*, HN*, HR*, MR*_A, MR*_B, S*, U, V, W, X*A

: CONNECTION, CONNECTOR Q*L : OVERLOAD PROTECTOR

D*, V*D : DIODE Q*M : THERM

O SWITCH

DB* : DIODE BRIDGE R* : RESISTOR

DS* : DIP SWITCH R*T : THERMISTOR

E*H : HEATER RC : RECEIVER

F*U, FU*

(FOR CHARACTERISTICS

REFER TO PCB INSIDE YOUR UNIT)

: FUSE S*C : LIMIT SWITCH

FG* : CONNECTOR (FRAME GROUND) S*L : FLOAT SWITCH

H* : HARNESS S*NPH : PRESSURE SENSOR (HIGH)

H*P, LED*, V*L : PILOT LAMP, LIGHT EMITTING DIODE S*NPL : PRESSURE SENSOR (LOW)

HAP : LIGHT EMITTING DIODE (SERVICE MONITOR GREEN) S*PH, HPS* : PRESSURE SWITCH (HIGH)

HIGH VOLTAGE : HIGH VOLTAGE S*PL : PRESSURE SWITCH (L

OW)

IES : INTELLIGENT EYE SENSOR S*T : THERMOSTAT

IPM* : INTELLIGENT POWER MODULE S*W, SW* : OPERATION SWITCH

K*R, KCR, KFR, KHuR : MAGNETIC RELAY SA* : SURGE ARRESTOR

L : LIVE SR*, WLU : SIGNAL RECEIVER

L* : COIL SS* : SELECTOR SWITCH

L*R : REACTOR SHEET METAL : TERMINAL STRIP FIXED PLATE

M* : STEPPER MOTOR T*R : TRANSFORMER

M*C : COMPRESSOR MOTOR TC, TRC : TRANSMITTER

M*F : FAN MOTOR V*, R*V : VARISTOR

M*P : DRAIN PUMP MOTOR V*R : DIODE BRIDGE

M*S : SWING MOTOR WRC : WIRELESS REMOTE CONTROLLER

MR*, MRCW*, MRM*, MR

N* : MAGNETIC RELAY X* : TERMINAL

N : NEUTRAL X*M : TERMINAL STRIP (BLOCK)

n = * NUMBER OF PASSES THROUGH FERRITE CORE Y*E : ELECTRONIC EXPANSION VALVE COIL

PAM : PULSE-AMPLITUDE MODULATION Y*R, Y*S : REVERSING SOLENOID VALVE COIL

PCB* : PRINTED CIRCUIT BOARD Z*C : FERRITE CORE

PM* : POWER MODULE ZF, Z*F : NOISE FILTER

9.2 Wiring diagram

Installation and operation manual

Split system air conditioners

FFA25~60A2VEB

4P456960-1 – 2017.03

For the user

10 About the system

The indoor unit of this split system air conditioner can be used for heating/cooling applications.

NOTICE

Do not use the system for other purposes. In order to avoid any quality deterioration, do not use the unit for cooling precision instruments, food, plants, animals or works of art.

NOTICE

For future modifications or expansions of your system:

A full overview of allowable combinations (for future system extensions) is available in technical engineering data and should be consulted. Contact your installer to receive more information and professional advice.

10.1 System layout

a Indoor unit b Outdoor unit c User interface d Suction air e Discharge air

f Refrigerant piping + interconnection cable g Drain pipe h Earth wiring

i Suction grille and air filter

11 User interface

CAUTION

Never touch the internal parts of the controller.

Do not remove the front panel. Some parts inside are dangerous to touch and appliance problems may happen. For checking and adjusting the internal parts, contact your dealer.

This operation manual will give a non-exhaustive overview of the main functions of the system.

For more information about the user interface, see the operation manual of the installed user interface.

12 Operation

12.1 Operation range

Use the system in the following temperature and humidity ranges for safe and effective operation.

For combination with R410A outdoor unit, refer to the following table:

Outdoor units Cooling Heating

RR71~125 Outdoor

temperature Indoor

temperature

RQ71~125 Outdoor

temperature

Indoor temperature

RXS25~60 Outdoor

temperature

Indoor temperature

2MXS50 Outdoor

temperature

Indoor temperature

3MXS40~68

4MXS68~80

5MXS90

RZQG71~140 Outdoor

RZQSG71~140 Outdoor

RZQ200~250 Outdoor

For combination with R32 outdoor unit, refer to the following table:

Outdoor units Cooling Heating

RXM25~60 Outdoor

Outdoor temperature

Indoor temperature

temperature

Indoor temperature

temperature

Indoor temperature

temperature

Indoor temperature

temperature

Indoor temperature

–15~46°CDB —

18~37°CDB

12~28°CWB –5~46°CDB –9~21°CDB

18~37°CDB

12~28°CWB

–10~46°CDB –15~24°CDB

18~32°CDB 10~30°CDB

10~46°CDB –15~24°CDB

18~32°CDB 10~30°CDB

–10~46°CDB –15~24°CDB

18~32°CDB 10~30°CDB

–15~50°CDB –19~21°CDB

18~37°CDB

12~28°CWB

–15~46°CDB –14~21°CDB

20~37°CDB

14~28°CWB –5~46°CDB –14~21°CDB

20~37°CDB

14~28°CWB

–10~46°CDB –15~24°CDB

18~32°CDB 10~30°CDB

—

–10~15°CWB

10~27°CDB

–16~18°CWB

–20~15.5°CWB

10~27°CDB

–15~15.5°CWB

10~27°CDB

–15~15°CWB

10~27°CDB

–16~18°CWB

FFA25~60A2VEB Split system air conditioners 4P456960-1 – 2017.03

Installation and operation manual

12 Operation

Outdoor units Cooling Heating

2MXM50

3MXM40~68

4MXM68~80

5MXM90 RZAG71~140 Outdoor

RZASG71~140 Outdoor

Indoor humidity ≤80%

Outdoor

temperature

Indoor

temperature

Indoor

temperature

Indoor

temperature

(a) To avoid condensation and water dripping out of the unit. If

the temperature or the humidity is beyond these conditions, safety devices may be put in action and the air conditioner may not operate.

–10~46°CDB –15~24°CDB

–16~18°CWB

18~32°CDB 10~30°CDB

–20~52°CDB –19.5~21°CDB

–20~15.5°CWB

18~37°CDB

12~28°CWB

–15~46°CDB –14~21°CDB

20~37°CDB

14~28°CWB

10~27°CDB

–15~15.5°CWB

10~27°CDB

(a)

12.2 Operating the system

12.2.1 About operating the system

▪ To protect the unit, turn on the main power switch 6 hours before

operation.

▪ If the main power supply is turned off during operation, operation

will restart automatically after the power turns back on again.

12.2.2 About cooling, heating, fan only, and automatic operation

▪ The air flow rate may adjust itself depending on the room

temperature or the fan may stop immediately. This is not a malfunction.

12.2.3 About the heating operation

It may take longer to reach the set temperature for general heating operation than for cooling operation.

The following operation is performed in order to prevent the heating capacity from dropping or cold air from blowing.

Defrost operation

In heating operation, freezing of the outdoor unit's air cooled coil increases over time, restricting the energy transfer to the outdoor unit's coil. Heating capability decreases and the system needs to go into defrost operation to be able to deliver enough heat to the indoor units.

The indoor unit will stop fan operation, the refrigerant cycle will reverse and energy from inside the building will be used to defrost the outdoor unit coil.

The indoor unit will indicate defrost operation on the display .

Hot start

In order to prevent cold air from blowing out of an indoor unit at the start of heating operation, the indoor fan is automatically stopped.

The display of the user interface shows . It may take some time before the fan starts. This is not a malfunction.

12.2.4 To operate the system

1 Press the operation mode selector button on the user interface

several times and select the operation mode of your choice.

Cooling operation

Heating operation

Fan only operation

2 Press the ON/OFF button on the user interface.

Result: The operation lamp lights up and the system starts

operating.

12.3 Using the dry program

12.3.1 About the dry program

▪ The function of this program is to decrease the humidity in your

room with minimal temperature decrease (minimal room cooling).

▪ The micro computer automatically determines temperature and

fan speed (cannot be set by the user interface).

▪ The system does not go into operation if the room temperature is

low (<20°C).

12.3.2 To use the dry program

To start

1 Press the operation mode selector button on the user interface

several times and select (program dry operation).

2 Press the ON/OFF button of the user interface.

Result: The operation lamp lights up and the system starts

operating.

To stop

3 Press the ON/OFF button on the user interface once again.

Result: The operation lamp goes out and the system stops

operating.

NOTICE

Do not turn off power immediately after the unit stops, but wait for at least 5 minutes.

12.4 Adjusting the air flow direction

Refer to the operation manual of the user interface.

12.4.1 About the air flow flap

Double flow+multi-flow units

For the following conditions, a micro computer controls the air flow direction which may be different from the display.

Cooling Heating

▪ When the room temperature is

lower than the set temperature.

▪ When operating continuously at horizontal air flow direction.

▪ When continuous operation with downward air flow is performed

at the time of cooling with a ceiling-suspended or a wall-mounted unit, the micro computer may control the flow direction, and then the user interface indication will also change.

The air flow direction can be adjusted in one of the following ways:

▪ The air flow flap itself adjusts its position.

▪ The air flow direction can be fixed by the user.

▪ Automatic and desired position .

▪ When starting operation.

▪ When the room temperature is

higher than the set temperature.

▪ At defrost operation.

Installation and operation manual

Split system air conditioners

FFA25~60A2VEB

4P456960-1 – 2017.03

13 Maintenance and service

WARNING

Never touch the air outlet or the horizontal blades while the swing flap is in operation. Fingers may become caught or the unit may break down.

NOTICE

▪ The movable limit of the flap is changeable. Contact

your dealer for details. (only for double-flow, multi-flow, corner, ceiling-suspended and wall-mounted).

▪ Avoid operating in the horizontal direction . It may

cause dew or dust to settle on the ceiling or flap.

13 Maintenance and service

NOTICE

Never inspect or service the unit by yourself. Ask a qualified service person to perform this work. However, as end user, you may clean the air filter, suction grille, air outlet and outside panels.

WARNING

Never replace a fuse with a fuse of a wrong ampere ratings or other wires when a fuse blows out. Use of wire or copper wire may cause the unit to break down or cause a fire.

▪ Depending on the settings, the user interface can display the

TIME TO CLEAN AIR FILTER notification. Clean the air filter when the notification is displayed.

▪ If the dirt becomes impossible to clean, change the air filter

(=optional equipment).

How to clean the air filter:

NOTICE Do NOT use water of 50°C or higher. Possible

consequence: Discoloration and deformation.

1 Open the suction grille.

BYFQ60B BYFQ60C

2 Remove the air filter.

BYFQ60B BYFQ60C

CAUTION

Do not insert fingers, rods or other objects into the air inlet or outlet. Do not remove the fan guard. When the fan is rotating at high speed, it will cause injury.

CAUTION

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

NOTICE

Do not wipe the controller operation panel with benzine, thinner, chemical dust cloth, etc. The panel may get discoloured or the coating peeled off. If it is heavily dirty, soak a cloth in water-diluted neutral detergent, squeeze it well and wipe the panel clean. Wipe it with another dry cloth.

CAUTION

Before accessing terminal devices, make sure to interrupt all power supply.

NOTICE

When cleaning the heat exchanger, make sure to remove the switch box, fan motor, drain pump and float switch. Water or detergent might deteriorate the insulation of electronic components and result in burnout of these components.

13.1 Cleaning the air filter, suction grille, air outlet and outside panels

13.1.1 To clean the air filter

When to clean the air filter:

▪ Rule of thumb: Clean every 6 months. If the air in the room is

extremely contaminated, increase the cleaning frequency.

3 Clean the air filter. Use a vacuum cleaner or wash with water. If

the air filter is very dirty, use a soft brush and neutral detergent.

4 Dry the air filter in the shadow. 5 Reattach the air filter and close the suction grille (steps 2 and 1

in reverse order).

6 Turn ON the power. 7 Press the FILTER SIGN RESET button.

Result: The TIME TO CLEAN AIR FILTER notification

disappears from the user interface.

13.1.2 To clean the suction grille

NOTICE Do NOT use water of 50°C or higher. Possible

consequence: Discoloration and deformation.

1 Open the suction grille.

FFA25~60A2VEB Split system air conditioners 4P456960-1 – 2017.03

BYFQ60B BYFQ60C

Installation and operation manual

13 Maintenance and service

45°

90°

2 Remove the suction grille.

BYFQ60B

BYFQ60C

NOTICE

▪ Do NOT use gasoline, benzene, thinner polishing

powder or liquid insecticide. Possible consequence: Discoloration and deformation.

▪ Do NOT use water or air of 50°C or higher. Possible

consequence: Discoloration and deformation.

▪ Do NOT scrub firmly when washing the blade with

water. Possible consequence: The surface sealing peels off.

Clean with a soft cloth. If it is difficult to remove stains, use water or neutral detergent.

13.2 Maintenance after a long stop period

E.g., at the beginning of the season.

▪ Check and remove everything that might be blocking inlet and

outlet vents of indoor units and outdoor units.

▪ Clean air filters and casings of indoor units (see "13.1.1 To clean

the air filter" on page 17 and "13.1.3 To clean the air outlet and outside panels"on page18).

▪ Turn on the power at least 6 hours before operating the unit in

order to ensure smoother operation. As soon as the power is turned on, the user interface display appears.

3 Remove the air filter.

BYFQ60B BYFQ60C

4 Clean the suction grille. Wash with a soft bristle brush and

water or neutral detergent. If the suction grille is very dirty, use a typical kitchen cleaner, leave it on for 10 min, then wash it with water.

5 Reattach the air filter (step 3 in reverse order). 6 Reattach the suction grille and close it. (step 2 and 1 in reverse

order)

13.3 Maintenance before a long stop period

E.g., at the end of the season.

▪ Let the indoor units run in fan only operation for about half a day in

order to dry the interior of the units. Refer to "12.2.2 About

cooling, heating, fan only, and automatic operation"on page 16

for details on fan only operation.

▪ Turn off the power. The user interface display disappears.

▪ Clean air filters and casings of indoor units (see "13.1.1 To clean

the air filter" on page 17 and "13.1.3 To clean the air outlet and outside panels"on page18).

13.4 About the refrigerant

This product contains fluorinated greenhouse gases. Do NOT vent gases into the atmosphere.

Refrigerant type: R32

Global warming potential (GWP) value: 675

Refrigerant type: R410A

Global warming potential (GWP) value: 2087.5

NOTICE

In Europe, the greenhouse gas emissions of the total refrigerant charge in the system (expressed as tonnes CO2-equivalent) is used to determine the maintenance intervals. Follow the applicable legislation.

Formula to calculate the greenhouse gas emissions:

GWP value of the refrigerant × Total refrigerant charge [in kg] / 1000

Please contact your installer for more information.

13.1.3 To clean the air outlet and outside panels

WARNING Do NOT let the indoor unit get wet. Possible

consequence: Electric shock or fire.

Installation and operation manual

WARNING: FLAMMABLE MATERIAL

The R32 refrigerant (if applicable) in this unit is mildly flammable.

(a)

(a) Refer to the outdoor unit specifications for the type of

refrigerant to be used.

FFA25~60A2VEB

Split system air conditioners

4P456960-1 – 2017.03

13 Maintenance and service

WARNING

▪ Do NOT pierce or burn refrigerant cycle parts.

▪ Do NOT use cleaning materials or means to accelerate

the defrosting process other than those recommended by the manufacturer.

▪ Be aware that the refrigerant inside the system is

odourless.

WARNING

R410A is a non-combustible refrigerant, and R32 is a mildly flammable refrigerant; they normally don’t leak. If the refrigerant leaks in the room and comes in contact with fire from a burner, a heater, or a cooker, this may result in a fire (in case of R32), or the formation of a harmful gas.

Turn off any combustible heating devices, ventilate the room, and contact the dealer from where you purchased the unit.

Do not use the unit until a service person confirms that the part from which the refrigerant leaked has been repaired.

13.5 After-sales service and warranty

13.5.1 Warranty period

▪ This product includes a warranty card that was filled in by the

dealer at the time of installation. The completed card has to be checked by the customer and stored carefully.

▪ If repairs to the product are necessary within the warranty period,

contact your dealer and keep the warranty card at hand.

13.5.2 Recommended maintenance and inspection

Since dust collects when using the unit for several years, performance of the unit will deteriorate to some extent. As taking apart and cleaning interiors of units requires technical expertise and in order to ensure the best possible maintenance of your units, we recommend to enter into a maintenance and inspection contract on top of normal maintenance activities. Our network of dealers has access to a permanent stock of essential components in order to keep your unit in operation as long as possible. Contact your dealer for more information.

When asking your dealer for an intervention, always state:

▪ The complete model name of the unit.

▪ The manufacturing number (stated on the nameplate of the unit).

▪ The installation date.

▪ The symptoms or malfunction, and details of the defect.

WARNING

▪ Do not modify, disassemble, remove, reinstall or repair

the unit yourself as incorrect dismantling or installation may cause an electric shock or fire. Contact your dealer.

▪ In case of accidental refrigerant leaks, make sure there

are no naked flames. The refrigerant itself is entirely safe and non-toxic. R410A is a non-combustible refrigerant, and R32 is a mildly flammable refrigerant, but they will generate a toxic gas when they accidentally leak into a room where combustible air from fan heaters, gas cookers, etc. is present. Always have qualified service personnel confirm that the point of leakage has been repaired or corrected before resuming operation.

13.5.3 Recommended maintenance and inspection cycles

Be aware that the mentioned maintenance and replacement cycles do not relate to the warranty period of the components.

Component Inspection

cycle

Electric motor 1 year 20,000 hours PCB 25,000 hours Heat exchanger 5 years Sensor (thermistor, etc.) 5 years User interface and switches 25,000 hours Drain pan 8 years Expansion valve 20,000 hours Solenoid valve 20,000 hours

The table assumes the following conditions of use:

▪ Normal use without frequent starting and stopping of the unit.

Depending on the model, we recommend not starting and stopping the machine more than 6 times/hour.

▪ Operation of the unit is assumed to be 10 hours/day and

2,500hours/year.

NOTICE

▪ The table indicates main components. Refer to your

maintenance and inspection contract for more details.

▪ The table indicates recommended intervals of

maintenance cycles. However, in order to keep the unit operational as long as possible, maintenance work may be required sooner. Recommended intervals can be used for appropriate maintenance design in terms of budgeting maintenance and inspection fees. Depending on the content of the maintenance and inspection contract, inspection and maintenance cycles may in reality be shorter than listed.

Maintenance cycle

(replacements and/or

repairs)

13.5.4 Shortened maintenance and replacement cycles

Shortening of "maintenance cycle" and "replacement cycle" needs to be considered in following situations:

The unit is used in locations where:

▪ Heat and humidity fluctuate out of the ordinary.

▪ Power fluctuation is high (voltage, frequency, wave distortion, etc.)

(the unit cannot be used if power fluctuation is outside the allowable range).

▪ Bumps and vibrations are frequent.

▪ Dust, salt, harmful gas or oil mist such as sulphurous acid and

hydrogen sulfide may be present in the air.

▪ The machine is started and stopped frequently or operation time is

long (sites with 24 hour air-conditioning).

Recommended replacement cycle of wear parts

Component Inspection

cycle

Air filter 1 year 5 years High efficiency filter 1 year Fuse 10 years Pressure containing parts In case of corrosion,

Maintenance cycle

(replacements and/or

repairs)

contact your local dealer.

FFA25~60A2VEB Split system air conditioners 4P456960-1 – 2017.03

Installation and operation manual

14 Troubleshooting

NOTICE

▪ The table indicates main components. Refer to your

maintenance and inspection contract for more details.

▪ The table indicates recommended intervals of

replacement cycles. However, in order to keep the unit operational as long as possible, maintenance work may be required sooner. Recommended intervals can be used for appropriate maintenance design in terms of budgeting maintenance and inspection fees. Contact your dealer for details.

INFORMATION

Damage due to taking apart or cleaning interiors of units by anyone other than our authorised dealers may not be included in the warranty.

14 Troubleshooting

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

WARNING Stop operation and shut off the power if anything

unusual occurs (burning smells etc.).

Leaving the unit running under such circumstances may cause breakage, electric shock or fire. Contact your dealer.

The system must be repaired by a qualified service person:

Malfunction Measure

If a safety device such as a fuse, a breaker or an earth leakage breaker frequently actuates or the ON/OFF switch does not properly work.

If water leaks from the unit. Stop the operation. The operation switch does not work

well. If the user interface display indicates the

unit number, the operation lamp flashes and the malfunction code appears.

If the system does not properly operate except for the above mentioned cases and none of the above mentioned malfunctions is evident, investigate the system according to the following procedures.

Malfunction Measure

If the system does not operate at all.

▪ Check if there is no power failure. Wait

until power is restored. If power failure occurs during operation, the system automatically restarts immediately after power is restored.

▪ Check if no fuse has blown or breaker is

activated. Change the fuse or reset the breaker if necessary.

Turn off the main power switch.

Turn off the power.

Notify your installer and report the malfunction code.

Malfunction Measure

The system operates but cooling or heating is insufficient.

If after checking all above items, it is impossible to fix the problem yourself, contact your installer and state the symptoms, the complete model name of the unit (with manufacturing number if possible) and the installation date (possibly listed on the warranty card).

▪ Check if air inlet or outlet of outdoor or

indoor unit is not blocked by obstacles. Remove any obstacles and make sure the air can flow freely.

▪ Check if the air filter is not clogged (see

"13.1.1 To clean the air filter" on page17).

▪ Check the temperature setting.

▪ Check the fan speed setting on your user

interface.

▪ Check for open doors or windows. Close

doors and windows to prevent wind from coming in.

▪ Check if there are too many occupants in

the room during cooling operation. Check if the heat source of the room is excessive.

▪ Check if direct sunlight enters the room.

Use curtains or blinds.

▪ Check if the air flow angle is proper.

14.1 Symptoms that are NOT system malfunctions

The following symptoms are NOT system malfunctions:

14.1.1 Symptom: The system does not operate

▪ The air conditioner does not start immediately after the ON/OFF

button on the user interface is pressed. If the operation lamp lights, the system is in normal condition. To prevent overloading of the compressor motor, the air conditioner starts 5 minutes after it is turned ON again in case it was turned OFF just before. The same starting delay occurs after the operation mode selector button was used.

▪ If "Under Centralized Control" is displayed on the user interface,

pressing the operation button causes the display to blink for a few seconds. The blinking display indicates that the user interface cannot be used.

▪ The system does not start immediately after the power supply is

turned on. Wait one minute until the micro computer is prepared for operation.

14.1.2 Symptom: The fan strength does not correspond to the setting

The fan speed does not change even if the fan speed adjustment button in pressed. During heating operation, when the room temperature reaches the set temperature, the outdoor unit goes off and the indoor unit changes to whisper fan speed. This is to prevent cold air blowing directly on occupants of the room. The fan speed will not change if the button is pressed.

Installation and operation manual

14.1.3 Symptom: The fan direction does not correspond to the setting

The fan direction does not correspond with the user interface display. The fan direction does not swing. This is because the unit is being controlled by the micro computer.

FFA25~60A2VEB

Split system air conditioners

4P456960-1 – 2017.03

15 Relocation

14.1.4 Symptom: White mist comes out of a unit (Indoor unit)

▪ When humidity is high during cooling operation. If the interior of an

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

▪ Immediately after the cooling operation stops and if the room

temperature and humidity are low. This is because warm refrigerant gas flows back into the indoor unit and generates steam.

14.1.5 Symptom: White mist comes out of a unit (Indoor unit, outdoor unit)

When the system is changed over to heating operation after defrost operation. Moisture generated by defrost becomes steam and is exhausted.

14.1.6 Symptom: The user interface display reads "U4" or "U5" and stops, but then restarts after a few minutes

This is because the user interface is intercepting noise from electric appliances other than the air conditioner. The noise prevents communication between the units, causing them to stop. Operation automatically restarts when the noise ceases.

14.1.7 Symptom: Noise of air conditioners (Indoor unit)

▪ A "zeen" sound is heard immediately after the power supply is

turned on. The electronic expansion valve inside an indoor unit starts working and makes the noise. Its volume will reduce in about one minute.

▪ A continuous low "shah" sound is heard when the system is in

cooling operation or at a stop. When the drain pump is in operation, this noise is heard.

▪ A "pishi-pishi" squeaking sound is heard when the system stops

after heating operation. Expansion and contraction of plastic parts caused by temperature change make this noise.

14.1.12 Symptom: The outdoor unit fan does not spin

During operation. The speed of the fan is controlled in order to optimise product operation.

14.1.13 Symptom: The display shows "88"

This is the case immediately after the main power supply switch is turned on and means that the user interface is in normal condition. This continues for 1minute.

14.1.14 Symptom: The compressor in the outdoor unit does not stop after a short heating operation

This is to prevent refrigerant from remaining in the compressor. The unit will stop after 5 to 10 minutes.

15 Relocation

Contact your dealer for removing and reinstalling the total unit. Moving units requires technical expertise.

16 Disposal

This unit uses hydrofluorocarbon. Contact your dealer when discarding this unit.

NOTICE

14.1.8 Symptom: Noise of air conditioners (Indoor unit, outdoor unit)

▪ A continuous low hissing sound is heard when the system is in

cooling or defrost operation. This is the sound of refrigerant gas flowing through both indoor and outdoor units.

▪ A hissing sound which is heard at the start or immediately after

stopping operation or defrost operation. This is the noise of refrigerant caused by flow stop or flow change.

14.1.9 Symptom: Noise of air conditioners (Outdoor unit)

When the tone of operating noise changes. This noise is caused by the change of frequency.

14.1.10 Symptom: Dust comes out of the unit

When the unit is used for the first time in a long time. This is because dust has gotten into the unit.

14.1.11 Symptom: The units can give off odours

The unit can absorb the smell of rooms, furniture, cigarettes, etc., and then emit it again.

FFA25~60A2VEB Split system air conditioners 4P456960-1 – 2017.03

Installation and operation manual

4P456960-1 2017.03

Daikin FFA25A2VEB, FFA35A2VEB, FFA50A2VEB, FFA60A2VEB User Manual [ru]

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of contents

1 About the documentation 3

1.1 About this document

2 About the box

For the installer

2.1 Indoor unit

2.1.1 To remove the accessories from the indoor unit

3 About the units and options

3.1 About the indoor unit

4 Preparation

4.1 Preparing installation site

4.1.1 Installation site requirements of the indoor unit

3.2 System layout

5 Installation

5.1 Mounting the indoor unit

5.1.1 Precautions when mounting the indoor unit

5.1.2 Guidelines when installing the indoor unit

5.1.3 Guidelines when installing the drain piping

General guidelines

To connect the drain piping to the indoor unit

To check for water leaks

When electrical wiring is not finished yet

5.2 Connecting the refrigerant piping

5.2.1 About connecting the refrigerant piping

5.2.2 Precautions when connecting the refrigerant piping

When electrical wiring is finished already

5.2.3 Guidelines when connecting the refrigerant piping

5.2.4 Pipe bending guidelines

5.2.5 To flare the pipe end

5.2.7 To connect the refrigerant piping to the indoor unit

5.2.6 To braze the pipe end

5.3 Connecting the electrical wiring

5.3.1 About connecting the electrical wiring

5.3.5 To connect the electrical wiring on the indoor unit

5.3.4 Specifications of standard wiring components

6 Configuration

6.1 Field settings

7 Commissioning

7.1 Overview: Commissioning

7.2 Precautions when commissioning

7.4 To perform a test run

7.3 Checklist before commissioning

8 Disposal

9 Technical data

7.5 Error codes when performing a test run

9.1 Piping diagram: Indoor unit

9.2 Wiring diagram

For the user

10 About the system

10.1 System layout

11 User interface

12 Operation

12.1 Operation range

12.2 Operating the system

12.2.1 About operating the system

12.2.2 About cooling, heating, fan only, and automatic operation

12.2.3 About the heating operation

12.2.4 To operate the system

12.3 Using the dry program

12.3.1 About the dry program

12.3.2 To use the dry program

12.4 Adjusting the air flow direction

12.4.1 About the air flow flap

13 Maintenance and service

13.1 Cleaning the air filter, suction grille, air outlet and outside panels

13.1.1 To clean the air filter

13.1.2 To clean the suction grille

13.2 Maintenance after a long stop period

13.3 Maintenance before a long stop period

13.4 About the refrigerant

13.1.3 To clean the air outlet and outside panels

13.5 After-sales service and warranty

13.5.1 Warranty period

13.5.2 Recommended maintenance and inspection

13.5.3 Recommended maintenance and inspection cycles

13.5.4 Shortened maintenance and replacement cycles