Installer and user
reference guide
Split system air conditioners
FDA125A5VEB
Installer and user reference guide
Split system air conditioners
English
CE - DECLARACION-DE-CONFORMIDAD
CE - DICHIARAZIONE-DI-CONFORMITA
CE - ΔHΛΩΣΗ ΣΥΜΜΟΡΦΩΣΗΣ
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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:
ob upoštevanju določb:
vastavalt nõuetele:
следвайки клаузите на:
laikantis nuostatų, pateikiamų:
ievērojot prasības, kas noteiktas:
održiavajúc ustanovenia:
bunun koşullarına uygun olarak:
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CE - IZJAVA-O-USKLAĐENOSTI
CE - MEGFELELŐSÉGI-NYILATKOZAT
CE - DEKLARACJA-ZGODNOŚCI
CE - DECLARAŢIE-DE-CONFORMITATE
15 Napomena*
14 Poznámka*
13 Huom*
12 Merk*
11 Information*
enligt <A> och godkänts av <B> enligt
Certifikatet <C>.
som det fremkommer i <A> og gjennom positiv
bedømmelse av <B> ifølge Sertifikat <C>.
jotka on esitetty asiakirjassa <A> ja jotka <B>
on hyväksynyt Sertifikaatin <C> mukaisesti.
jak bylo uvedeno v <A> a pozitivně zjištěno
<B> v souladu s osvědčením <C>.
kako je izloženo u <A> i pozitivno ocijenjeno od strane
<B> prema Certifikatu <C>.
Shigeki Morita
Director
Ostend, 1st of August 2017
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a(z) <A> alapján, a(z) <B> igazolta a megfelelést, a(z)
<C> tanúsítvány szerint.
zgodnie z dokumentacją <A>, pozytywną
opinią <B> i Świadectwem <C>.
aşa cum este stabilit în <A> şi apreciat pozitiv de <B>
în conformitate cu Certificatul <C>.
kot je določeno v <A> in odobreno s strani <B>
v skladu s certifikatom <C>.
nagu on näidatud dokumendis <A> ja heaks kiidetud
<B> järgi vastavalt sertifikaadile <C>.
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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:
CE - ATITIKTIES-DEKLARACIJA
CE - ATBILSTĪBAS-DEKLARĀCIJA
CE - VYHLÁSENIE-ZHODY
CE - UYGUNLUK-BEYANI
25 Not*
24 Poznámka*
23 Piezīmes*
22 Pastaba*
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Directivelor, cu amendamentele respective.
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.
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<C> 2178265.0551-EMC
<B> DEKRA (NB0344)
<A> DAIKIN.TCF.033A4/04-2017
Direktiver, med senere ændringer.
Direktiv, med företagna ändringar.
Direktiver, med foretatte endringer.
Direktiivejä, sellaisina kuin ne ovat muutettuina.
v platném znění.
Smjernice, kako je izmijenjeno.
irányelv(ek) és módosításaik rendelkezéseit.
z późniejszymi poprawkami.
както е изложено в <A> и оценено положително от <B>
съгласно Сертификата <C>.
kaip nustatyta <A> ir kaip teigiamai nuspręsta <B> pagal
Sertifikatą <C>.
kā norādīts <A> un atbilstoši <B> pozitīvajam vērtējumam
saskaņā ar sertifikātu <C>.
ako bolo uvedené v <A> a pozitívne zistené <B> v súlade
s osvedčením <C>.
<A>’da belirtildiği gibi ve <C> Sertifikasına göre <B>
tarafından olumlu olarak değerlendirildiği gibi.
Directives, as amended.
Direktiven, gemäß Änderung.
Directives, telles que modifiées.
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*
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16 megfelelnek az alábbi szabvány(ok)nak vagy egyéb irányadó dokumentum(ok)nak, ha azokat előírás szerint használják:
17 spełniają wymogi następujących norm i innych dokumentów normalizacyjnych, pod warunkiem że używane są zgodnie z naszymi instrukcjami:
18 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:
19 skladni z naslednjimi standardi in drugimi normativi, pod pogojem, da se uporabljajo v skladu z našimi navodili:
20 on vastavuses järgmis(t)e standardi(te)ga või teiste normatiivsete dokumentidega, kui neid kasutatakse vastavalt meie juhenditele:
21 съответстват на следните стандарти или други нормативни документи, при условие, че се използват съгласно нашите инструкции:
22 atitinka žemiau nurodytus standartus ir (arba) kitus norminius dokumentus su sąlyga, kad yra naudojami pagal mūsų nurodymus:
23 tad, ja lietoti atbilstoši ražotāja norādījumiem, atbilst sekojošiem standartiem un citiem normatīviem dokumentiem:
24 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:
25 ürünün, talimatlarımıza göre kullanılması koşuluyla aşağıdaki standartlar ve norm belirten belgelerle uyumludur:
17 18 19 20 21 22 23 24 25 CE - IZJAVA O SKLADNOSTI
CE - VASTAVUSDEKLARATSIOON
CE - ДЕКЛАРАЦИЯ-ЗА-СЪОТВЕТСТВИЕ
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20 Märkus*
19 Opomba*
18 Notă*
17 Uwaga*
16 Megjegyzés*
Machinery 2006/42/EC
Electromagnetic Compatibility 2014/30/EU
Low Voltage 2014/35/EU
08 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:
09 соответствуют следующим стандартам или другим нормативным документам, при условии их использования согласно нашим инструкциям:
10 overholder følgende standard(er) eller andet/andre retningsgivende dokument(er), forudsat at disse anvendes i henhold til vore instrukser:
11 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:
12 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:
13 vastaavat seuraavien standardien ja muiden ohjeellisten dokumenttien vaatimuksia edellyttäen, että niitä käytetään ohjeidemme mukaisesti:
14 za předpokladu, že jsou využívány v souladu s našimi pokyny, odpovídají následujícím normám nebo normativním dokumentům:
15 u skladu sa slijedećim standardom(ima) ili drugim normativnim dokumentom(ima), uz uvjet da se oni koriste u skladu s našim uputama:
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:
CE - ERKLÆRING OM-SAMSVAR
CE - ILMOITUS-YHDENMUKAISUUDESTA
CE - PROHLÁŠENÍ-O-SHODĚ
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delineato nel <A> e giudicato positivamente da <B>
secondo il Certificato <C>.
όπως καθορίζεται στο <A> και κρίνεται θετικά
από το <B> σύμφωνα με το Πιστοποιητικό <C>.
tal como estabelecido em <A> e com o parecer positivo
de <B> de acordo com o Certificado <C>.
как указано в <A> и в соответствии с положительным
решением <B> согласно Свидетельству <C>.
som anført i <A> og positivt vurderet af <B> i henhold til
Certifikat <C>.
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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.
Daikin Europe N.V. è autorizzata a redigere il File Tecnico di Costruzione.
05 Nota*
04 Bemerk*
03 Remarque*
02 Hinweis*
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as set out in <A> and judged positively by <B>
06 Nota*
according to the Certificate <C>.
wie in <A> aufgeführt und von <B> positiv
07 Σημείωση*
beurteilt gemäß Zertifikat <C>.
tel que défini dans <A> et évalué positivement par <B> 08 Nota*
conformément au Certificat <C>.
zoals vermeld in <A> en positief beoordeeld door <B> 09 Примечание*
overeenkomstig Certificaat <C>.
como se establece en <A> y es valorado
10 Bemærk*
positivamente por <B> de acuerdo con el
Certificado <C>.
following the provisions of:
gemäß den Vorschriften der:
conformément aux stipulations des:
overeenkomstig de bepalingen van:
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*
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EN60335-2-40,
01 are in conformity with the following standard(s) or other normative document(s), provided that these are used in accordance with our instructions:
02 der/den folgenden Norm(en) oder einem anderen Normdokument oder -dokumenten entspricht/entsprechen, unter der Voraussetzung, daß sie gemäß
unseren Anweisungen eingesetzt werden:
03 sont conformes à la/aux norme(s) ou autre(s) document(s) normatif(s), pour autant qu'ils soient utilisés conformément à nos instructions:
04 conform de volgende norm(en) of één of meer andere bindende documenten zijn, op voorwaarde dat ze worden gebruikt overeenkomstig onze
instructies:
05 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:
06 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:
07 είναι σύμφωνα με το(α) ακόλουθο(α) πρότυπο(α) ή άλλο έγγραφο(α) κανονισμών, υπό την προϋπόθεση ότι χρησιμοποιούνται
σύμφωνα με τις οδηγίες μας:
09 10 11 12 13 14 15 16 CE - DECLARAÇÃO-DE-CONFORMIDADE
CE - ЗАЯВЛЕНИЕ-О-СООТВЕТСТВИИ
CE - OVERENSSTEMMELSESERKLÆRING
CE - FÖRSÄKRAN-OM-ÖVERENSTÄMMELSE
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 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:
FDA125A5VEB,
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Daikin Europe N.V.
CE - DECLARATION-OF-CONFORMITY
CE - KONFORMITÄTSERKLÄRUNG
CE - DECLARATION-DE-CONFORMITE
CE - CONFORMITEITSVERKLARING
3P471028-10A
Table of Contents
8.2
8.3
8.4
Table of Contents
1 General safety precautions
1.1
1.2
1.3
About the documentation ..........................................................
1.1.1
Meaning of warnings and symbols..............................
For the user ...............................................................................
For the installer..........................................................................
1.3.1
General .......................................................................
1.3.2
Installation site ............................................................
1.3.3
Refrigerant ..................................................................
1.3.4
Brine............................................................................
1.3.5
Water ..........................................................................
1.3.6
Electrical .....................................................................
2 About the documentation
2.1
About this document..................................................................
For the installer
3 About the box
3.1
3.2
Overview: About the box ...........................................................
Indoor unit .................................................................................
3.2.1
To unpack and handle the unit....................................
3.2.2
To remove the accessories from the indoor unit.........
4 About the units and options
4.1
4.2
4.3
Overview: About the units and options......................................
System layout............................................................................
Combining units and options .....................................................
4.3.1
Possible options for the indoor unit.............................
5 Preparation
5.1
5.2
5.3
5.4
Overview: Preparation...............................................................
Preparing installation site ..........................................................
5.2.1
Installation site requirements of the indoor unit ..........
Preparing refrigerant piping.......................................................
5.3.1
Refrigerant piping requirements..................................
5.3.2
Refrigerant piping insulation .......................................
Preparing electrical wiring .........................................................
5.4.1
About preparing electrical wiring.................................
6 Installation
6.1
6.2
6.3
6.4
Overview: Installation ................................................................
Mounting the indoor unit............................................................
6.2.1
Precautions when mounting the indoor unit................
6.2.2
Guidelines when installing the indoor unit...................
6.2.3
Guidelines when installing the ducting........................
6.2.4
Guidelines when installing the drain piping.................
Connecting the refrigerant piping ..............................................
6.3.1
About connecting the refrigerant piping ......................
6.3.2
Precautions when connecting the refrigerant piping ...
6.3.3
Guidelines when connecting the refrigerant piping .....
6.3.4
Pipe bending guidelines..............................................
6.3.5
To flare the pipe end ...................................................
6.3.6
To braze the pipe end .................................................
6.3.7
To connect the refrigerant piping to the indoor unit ....
Connecting the electrical wiring.................................................
6.4.1
About connecting the electrical wiring.........................
6.4.2
Precautions when connecting the electrical wiring .....
6.4.3
Guidelines when connecting the electrical wiring .......
6.4.4
To connect the electrical wiring on the indoor unit......
6.4.5
Specifications of standard wiring components............
7 Configuration
7.1
3
4
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9
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10 Disposal
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11 Technical data
21
11.1
23
12 About the system
23
12.1
12.2
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14 Before operation
24
15 Operation
24
15.1
15.2
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19
Operation range ......................................................................... 24
Operation procedure .................................................................. 25
16 Energy saving and optimum operation
25
17 Maintenance and service
25
17.1
17.2
17.3
17.4
Overview: Maintenance and service ..........................................
Cleaning the air filter, suction grille, air outlet and outside
panels ........................................................................................
17.2.1 To clean the air outlet and outside panels ...................
17.2.2 To clean the air filter ....................................................
Maintenance before a long stop period ......................................
Maintenance after a long stop period .........................................
18 Troubleshooting
18.1
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Components ............................................................................... 23
Information requirements for fan coil units ................................. 23
13 User interface
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9
9
Wiring diagram ........................................................................... 22
For the user
9
Overview: Commissioning......................................................... 19
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
9 Hand-over to the user
8
Field settings ............................................................................. 18
8 Commissioning
8.1
3
Checklist before commissioning................................................. 19
To perform a test run.................................................................. 19
Error codes when performing a test run ..................................... 20
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Symptoms that are NOT system malfunctions ...........................
18.1.1 Symptom: The system does not operate .....................
18.1.2 Symptom: Air blow direction is not as specified...........
18.1.3 Symptom: White mist comes out of a unit (Indoor
unit) ..............................................................................
18.1.4 Symptom: Noise of air conditioners (indoor unit) .........
18.1.5 Symptom: Dust comes out of the unit ..........................
18.1.6 Symptom: The units can give off odours......................
18.1.7 Symptom: The display shows "88"...............................
18.1.8 Symptom: The operation stopped suddenly
(Operation lamp is on) .................................................
18.1.9 Symptom: The outdoor fan rotates while the air
conditioner is not in operation ......................................
18.1.10 Symptom: The heating operation stops suddenly and
a flowing sound is heard ..............................................
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19 Relocation
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20 Disposal
29
21 Glossary
29
1
General safety precautions
1.1
About the documentation
▪ The original documentation is written in English. All other
languages are translations.
▪ The precautions described in this document cover very important
topics, follow them carefully.
▪ The installation of the system, and all activities described in the
installation manual and the installer reference guide must be
performed by an authorized installer.
Installer and user reference guide
3
1 General safety precautions
1.1.1
Meaning of warnings and symbols
▪ Units are marked with the following symbol:
DANGER
Indicates a situation that results in death or serious injury.
DANGER: RISK OF ELECTROCUTION
Indicates a situation that could result in electrocution.
DANGER: RISK OF BURNING
Indicates a situation that could result in burning because of
extreme hot or cold temperatures.
DANGER: RISK OF EXPLOSION
Indicates a situation that could result in explosion.
This means that electrical and electronic products may not be
mixed with unsorted household waste. Do NOT try to dismantle
the system yourself: the dismantling of the system, treatment of
the refrigerant, of oil and of other parts must be done by an
authorized installer and must comply with applicable legislation.
Units must be treated at a specialized treatment facility for reuse,
recycling and recovery. By ensuring this product is disposed of
correctly, you will help to prevent potential negative consequences
for the environment and human health. For more information,
contact your installer or local authority.
▪ Batteries are marked with the following symbol:
WARNING
Indicates a situation that could result in death or serious
injury.
WARNING: FLAMMABLE MATERIAL
CAUTION
Indicates a situation that could result in minor or moderate
injury.
NOTICE
Indicates a situation that could result in equipment or
property damage.
This means that the batteries may not be mixed with unsorted
household waste. If a chemical symbol is printed beneath the
symbol, this chemical symbol means that the battery contains a
heavy metal above a certain concentration.
Possible chemical symbols are: Pb: lead (>0.004%).
Waste batteries must be treated at a specialized treatment facility
for reuse. By ensuring waste batteries are disposed of correctly,
you will help to prevent potential negative consequences for the
environment and human health.
1.3
For the installer
1.3.1
General
INFORMATION
Indicates useful tips or additional information.
Symbol
Explanation
Before installation, read the installation and
operation manual, and the wiring instruction sheet.
Before performing maintenance and service tasks,
read the service manual.
For more information, see the installer and user
reference guide.
1.2
For the user
▪ If you are not sure how to operate the unit, contact your installer.
▪ This appliance can be used by children aged from 8 years and
above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in
a safe way and understand the hazards involved. Children shall
not play with the appliance. Cleaning and user maintenance shall
not be made by children without supervision.
WARNING
To prevent electric shocks or fire:
▪ Do NOT rinse the unit.
▪ Do NOT operate the unit with wet hands.
▪ Do NOT place any objects containing water on the unit.
NOTICE
▪ Do NOT place any objects or equipment on top of the
unit.
▪ Do NOT sit, climb or stand on the unit.
Installer and user reference guide
4
If you are not sure how to install or operate the unit, contact your
dealer.
NOTICE
Improper installation or attachment of equipment or
accessories could result in electric shock, short-circuit,
leaks, fire or other damage to the equipment. Only use
accessories, optional equipment and spare parts made or
approved by Daikin.
WARNING
Make sure installation, testing and applied materials
comply with applicable legislation (on top of the
instructions described in the Daikin documentation).
CAUTION
Wear adequate personal protective equipment (protective
gloves, safety glasses,…) when installing, maintaining or
servicing the system.
WARNING
Tear apart and throw away plastic packaging bags so that
nobody, especially children, can play with them. Possible
risk: suffocation.
DANGER: RISK OF BURNING
▪ Do NOT touch the refrigerant piping, water piping or
internal parts during and immediately after operation. It
could be too hot or too cold. Give it time to return to
normal temperature. If you must touch it, wear
protective gloves.
▪ Do NOT touch any accidental leaking refrigerant.
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
1 General safety precautions
WARNING
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.
The appliance shall be stored so as to prevent mechanical
damage and in a well-ventilated room without continuously
operating ignition sources (example: open flames, an
operating gas appliance or an operating electric heater)
and have a room size as specified below.
CAUTION
NOTICE
Do NOT touch the air inlet or aluminium fins of the unit.
▪ Do NOT reuse joints which have been used already.
NOTICE
▪ Joints made in installation between parts of refrigerant
system shall be accessible for maintenance purposes.
▪ Do NOT place any objects or equipment on top of the
unit.
WARNING
▪ Do NOT sit, climb or stand on the unit.
Make sure installation, servicing, maintenance and repair
comply with instructions from Daikin and with applicable
legislation (for example national gas regulation) and are
executed only by authorised persons.
NOTICE
Works executed on the outdoor unit are best done under
dry weather conditions to avoid water ingress.
In accordance with the applicable legislation, it might be necessary
to provide a logbook with the product containing at least: information
on maintenance, repair work, results of tests, stand-by periods,…
Installation space requirements
NOTICE
▪ Pipework shall be protected from physical damage.
Also, at least, following information must be provided at an
accessible place at the product:
▪ Installation of pipework shall be kept to a minimum.
▪ Instructions for shutting down the system in case of an emergency
WARNING
▪ Name and address of fire department, police and hospital
If appliances contain R32 refrigerant, then the floor area of
the room in which the appliances are installed, operated
and stored must be larger than the minimum floor area
defined in table below A (m2). This applies to:
▪ Name, address and day and night telephone numbers for
obtaining service
In Europe, EN378 provides the necessary guidance for this logbook.
1.3.2
▪ Indoor units without refrigerant leakage sensor; in
case of indoor units with refrigerant leakage sensor,
consult the installation manual
Installation site
▪ Provide sufficient space around the unit for servicing and air
circulation.
▪ Outdoor units installed or stored indoors (example:
winter garden, garage, machinery room)
▪ Make sure the installation site withstands the unit's weight and
vibration.
▪ Make sure the area is well ventilated. Do NOT block any
ventilation openings.
▪ Pipework in unventilated spaces
To determine the minimum floor area
1
▪ Make sure the unit is level.
Determine the total refrigerant charge in the system (= factory
refrigerant charge
+
additional refrigerant amount
charged).
Contains fluorinated greenhouse gases
Do NOT install the unit in the following places:
R32
▪ In potentially explosive atmospheres.
1 =
kg
2 =
kg
1 + 2 =
kg
GWP: xxx
▪ In places where there is machinery that emits electromagnetic
waves. Electromagnetic waves may disturb the control system,
and cause malfunction of the equipment.
2
1
GWP × kg
▪ In places where there is a risk of fire due to the leakage of
flammable gases (example: thinner or gasoline), carbon fibre,
ignitable dust.
1000
2
Instructions for equipment using R32 refrigerant
WARNING
▪ Do NOT pierce or burn.
▪ Do NOT use means to accelerate the defrosting
process or to clean the equipment, other than those
recommended by the manufacturer.
tCO2eq
Determine which graph or table to use.
▪ For indoor units: Is the unit ceiling-mounted, wall-mounted or
floor-standing?
▪ For outdoor units installed or stored indoors, and field piping
in unventilated spaces, this depends on the installation
height:
▪ In places where corrosive gas (example: sulphurous acid gas) is
produced. Corrosion of copper pipes or soldered parts may cause
the refrigerant to leak.
If applicable.
=
If the installation height is… Then use the graph or table for…
<1.8 m
1.8≤x<2.2 m
≥2.2 m
3
Floor-standing units
Wall-mounted units
Ceiling-mounted units
Use the graph or table to determine the minimum floor area.
▪ Be aware that R32 refrigerant does NOT contain an
odour.
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
5
1 General safety precautions
Amin
(a)
(b)
(c)
Amin (m2)
490
470
450
430
410
390
370
350
330
310
290
270
250
230
210
190
170
150
130
110
90
70
50
30
10
520
500
1.3.3
480
440
420
400
380
360
340
320
Make sure refrigerant piping installation complies with
applicable legislation. In Europe, EN378 is the applicable
standard.
NOTICE
Make sure the field piping and connections are not
subjected to stress.
280
260
WARNING
240
During tests, NEVER pressurize the product with a
pressure higher than the maximum allowable pressure (as
indicated on the nameplate of the unit).
220
200
180
160
WARNING
140
Take sufficient precautions in case of refrigerant leakage. If
refrigerant gas leaks, ventilate the area immediately.
Possible risks:
120
100
80
)
oun
Wall-m
40
nit
ounted u
20
Ceiling-m
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
<1.224
1.225
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
6.8
7.0
7.2
7.4
7.6
7.8
7.956
—
0.956
1.25
1.63
2.07
2.55
3.09
3.68
4.31
5.00
5.74
6.54
7.38
8.27
9.22
10.2
11.3
12.4
13.5
14.7
16.0
17.3
18.6
20.0
21.5
23.0
24.5
26.1
27.8
29.5
31.3
33.1
34.9
36.9
38.8
40.8
m
2.8
3
3.2
3.4
3.6
3.8
4
4.2
4.4
4.6
4.8
5
5.2
5.4
Wall-mounted
unit(b)
m (kg)
Amin (m2)
<1.224
1.225
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
6.8
7.0
7.2
7.4
7.6
7.8
7.956
5.6
5.8
6
6.2
6.4
6.6
6.8
▪ Excessive refrigerant concentrations in a closed room
can lead to oxygen deficiency.
it (b
ted un
60
Ceiling-mounted
unit(a)
m (kg)
Amin (m2)
7
7.2
7.4
(a)
7.8
7.6 7.956
m (kg)
Floor-standing
unit(c)
m (kg)
Amin (m2)
—
1.43
1.87
2.44
3.09
3.81
4.61
5.49
6.44
7.47
8.58
9.76
11.0
12.4
13.8
15.3
16.8
18.5
20.2
22.0
23.8
25.8
27.8
29.9
32.1
34.3
36.6
39.1
41.5
44.1
46.7
49.4
52.2
55.1
58.0
61.0
<1.224
1.225
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
6.2
6.4
6.6
6.8
7.0
7.2
7.4
7.6
7.8
7.956
—
12.9
16.8
22.0
27.8
34.3
41.5
49.4
58.0
67.3
77.2
87.9
99.2
111
124
137
151
166
182
198
215
232
250
269
289
309
330
351
374
397
420
445
470
496
522
549
▪ Toxic gas may be produced if refrigerant gas comes
into contact with fire.
DANGER: RISK OF EXPLOSION
Pump down – Refrigerant leakage. If you want to pump
down the system, and there is a leakage in the refrigerant
circuit:
▪ Do NOT use the unit's automatic pump down function,
with which you can collect all refrigerant from the
system into the outdoor unit. Possible consequence:
Self-combustion and explosion of the compressor
because of air going into the operating compressor.
▪ Use a separate recovery system so that the unit's
compressor does NOT have to operate.
WARNING
Always recover the refrigerant. Do NOT release them
directly into the environment. Use a vacuum pump to
evacuate the installation.
NOTICE
After all the piping has been connected, make sure there is
no gas leak. Use nitrogen to perform a gas leak detection.
NOTICE
▪ To avoid compressor breakdown, do NOT charge more
than the specified amount of refrigerant.
▪ When the refrigerant system is to be opened,
refrigerant must be treated according to the applicable
legislation.
WARNING
Make sure there is no oxygen in the system. Refrigerant
may only be charged after performing the leak test and the
vacuum drying.
▪ In case re-charge is required, refer to the nameplate of the unit. It
states the type of refrigerant and necessary amount.
Total refrigerant charge in the system
Installer and user reference guide
6
Refrigerant
NOTICE
300
0
Minimum floor area
Ceiling-mounted unit (= Ceiling-mounted unit)
Wall-mounted unit (= Wall-mounted unit)
Floor-standing unit (= Floor-standing unit)
If applicable. See the installation manual or installer reference guide
of your application for more information.
460
(c)
510
540
r-sta
ndin
g un
it
530
Floo
550
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
1 General safety precautions
▪ The unit is factory charged with refrigerant and depending on pipe
sizes and pipe lengths some systems require additional charging
of refrigerant.
1.3.6
Electrical
DANGER: RISK OF ELECTROCUTION
▪ Only use tools exclusively for the refrigerant type used in the
system, this to ensure pressure resistance and prevent foreign
materials from entering into the system.
▪ Turn OFF all power supply before removing the
switch box cover, connecting electrical wiring or
touching electrical parts.
▪ Charge the liquid refrigerant as follows:
▪ Disconnect the power supply for more than 1 minute,
and measure the voltage at the terminals of main circuit
capacitors or electrical components before servicing.
The voltage MUST be less than 50 V DC before you
can touch electrical components. For the location of the
terminals, see the wiring diagram.
If
A siphon tube is present
Then
Charge with the cylinder upright.
(i.e., the cylinder is marked with
"Liquid filling siphon attached")
▪ Do NOT touch electrical components with wet hands.
A siphon tube is NOT present
Charge with the cylinder upside
down.
▪ Do NOT leave the unit unattended when the service
cover is removed.
WARNING
If NOT factory installed, a main switch or other means for
disconnection, having a contact separation in all poles
providing full disconnection under overvoltage category III
condition, MUST be installed in the fixed wiring.
▪ Open refrigerant cylinders slowly.
▪ Charge the refrigerant in liquid form. Adding it in gas form may
prevent normal operation.
CAUTION
When the refrigerant charging procedure is done or when
pausing, close the valve of the refrigerant tank
immediately. If the valve is not closed immediately,
remaining pressure might charge additional refrigerant.
Possible consequence: Incorrect refrigerant amount.
1.3.4
Brine
If applicable. See the installation manual or installer reference guide
of your application for more information.
WARNING
▪ ONLY use copper wires.
▪ Make sure the field wiring complies with the applicable
legislation.
▪ All field wiring must be performed in accordance with
the wiring diagram supplied with the product.
▪ NEVER squeeze bundled cables and make sure they
do not come in contact with the piping and sharp
edges. Make sure no external pressure is applied to the
terminal connections.
▪ Make sure to install earth wiring. Do NOT earth the unit
to a utility pipe, surge absorber, or telephone earth.
Incomplete earth may cause electrical shock.
WARNING
▪ Make sure to use a dedicated power circuit. NEVER
use a power supply shared by another appliance.
The selection of the brine MUST be in accordance with the
applicable legislation.
▪ Make sure to install the required fuses or circuit
breakers.
WARNING
▪ Make sure to install an earth leakage protector. Failure
to do so may cause electric shock or fire.
Take sufficient precautions in case of brine leakage. If
brine leaks, ventilate the area immediately and contact
your local dealer.
WARNING
▪ When installing the earth leakage protector, make sure
it is compatible with the inverter (resistant to high
frequency electric noise) to avoid unnecessary opening
of the earth leakage protector.
The ambient temperature inside the unit can get much
higher than that of the room, e.g. 70°C. In case of a brine
leak, hot parts inside the unit can create a hazardous
situation.
WARNING
The use and installation of the application MUST comply
with the safety and environmental precautions specified in
the applicable legislation.
1.3.5
Water
If applicable. See the installation manual or installer reference guide
of your application for more information.
NOTICE
Make sure water quality complies with EU directive
98/83 EC.
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
7
2 About the documentation
NOTICE
2
About the documentation
2.1
About this document
Precautions when laying power wiring:
▪ Do not connect wiring of different thicknesses to the
power terminal block (slack in the power wiring may
cause abnormal heat).
INFORMATION
▪ When connecting wiring which is the same thickness,
do as shown in the figure below.
Make sure that the user has the printed documentation and
ask him/her to keep it for future reference.
Target audience
Authorised installers + end users
INFORMATION
▪ For wiring, use the designated power wire and connect
firmly, then secure to prevent outside pressure being
exerted on the terminal board.
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.
▪ Use an appropriate screwdriver for tightening the
terminal screws. A screwdriver with a small head will
damage the head and make proper tightening
impossible.
Documentation set
▪ Over-tightening the terminal screws may break them.
▪ General safety precautions:
WARNING
This document is part of a documentation set. The complete set
consists of:
▪ Safety instructions that you must read before installing
▪ Format: Paper (in the box of the indoor unit)
▪ After finishing the electrical work, confirm that each
electrical component and terminal inside the electrical
components box is connected securely.
▪ Indoor unit installation and operation manual:
▪ Make sure all covers are closed before starting up the
unit.
▪ Format: Paper (in the box of the indoor unit)
▪ Installation and operation instructions
▪ Installer and user reference guide:
NOTICE
▪ Preparation of the installation, good practices, reference data,…
Only applicable if the power supply is three‑phase, and the
compressor has an ON/OFF starting method.
▪ Detailed step-by-step instructions and background information
for basic and advanced usage
If there exists the possibility of reversed phase after a
momentary black out and the power goes on and off while
the product is operating, attach a reversed phase
protection circuit locally. Running the product in reversed
phase can break the compressor and other parts.
▪ Format: Digital files on http://www.daikineurope.com/supportand-manuals/product-information/
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).
For the installer
3
About the box
▪ At delivery, the unit must be checked for damage. Any damage
must be reported immediately to the carrier's claims agent.
3.1
Overview: About the box
▪ Bring the packed unit as close as possible to its final installation
position to prevent damage during transport.
This chapter describes what you have to do after the box with the
indoor unit is delivered on-site.
3.2
Indoor unit
It contains information about:
WARNING: FLAMMABLE MATERIAL
▪ Unpacking and handling the units
The R32 refrigerant (if applicable) in this unit is mildly
flammable.1
▪ Removing the accessories from the units
Keep the following in mind:
(1)
Only for appliances using R32 refrigerant. Refer to the outdoor unit specifications for the type of refrigerant to be used.
Installer and user reference guide
8
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
4 About the units and options
3.2.1
b
c
d
e
f
g
h
To unpack and handle the unit
Use a sling of soft material or protective plates together with a rope
when lifting the unit. This to avoid damage or scratches to the unit.
Lift the unit by holding on to the hanger brackets without exerting
any pressure on other parts, especially on refrigerant piping, drain
piping and other resin parts.
3.2.2
a
1×
To remove the accessories from the
indoor unit
b
c
1×
d
8×
e
16×
f
g
1×
3×
1×
Outdoor unit
User interface
Suction air
Discharge air
Refrigerant piping + interconnection cable
Drain pipe
Earth wiring
4.3
Combining units and options
4.3.1
Possible options for the indoor unit
Make sure you have the following mandatory options:
▪ User interface: Wired or wireless
▪ Air inlet panel and canvas connection for the air inlet panel (in
case of bottom suction).
h
i
1×
a
b
c
d
e
f
g
h
i
l
j
1×
2×
Installation manual and operation manual
General safety precautions
Washers for hanger bracket
Screws for duct flanges
Metal clamp
Sealing pads: Large (drain pipe), medium 1 (gas pipe),
medium 2 (liquid pipe)
Drain hose
Insulation piece: Small (liquid pipe)
Insulation piece: Large (gas pipe)
Wire for common power supply
5
Preparation
5.1
Overview: Preparation
This chapter describes what you have to do and know before going
on-site.
It contains information about:
▪ Preparing the installation site
▪ Preparing the refrigerant piping
▪ Preparing the electrical wiring
5.2
4
About the units and options
4.1
Overview: About the units and
options
Preparing installation site
▪ Provide sufficient space around the unit for servicing and air
circulation.
▪ Choose the installation location with sufficient place for carrying
the unit in and out of the site.
WARNING
Do NOT install the air conditioner at any place where
flammable gas may leak out. If the gas leaks out and stays
around the air conditioner, a fire may break out.
This chapter contains information about:
▪ Combining outdoor and indoor units
▪ Combining the indoor unit with options
5.2.1
WARNING
Never use a flammable spray such as hair spray, lacquer
or paint near the unit. It may cause a fire.
4.2
INFORMATION
Also read the following requirements:
System layout
▪ General installation site requirements.
"General safety precautions" chapter.
d
See
the
▪ Refrigerant piping requirements (length, height
difference). See further in this "Preparation" chapter.
f
e
Installation site requirements of the
indoor unit
INFORMATION
The sound pressure level is less than 70 dBA.
b
a
NOTICE
c
The equipment described in this manual may cause
electronic noise generated from radio-frequency energy.
The equipment complies to specifications that are
designed to provide reasonable protection against such
interference. However, there is no guarantee that
interference will not occur in a particular installation.
g
h
a
It is therefore recommended to install the equipment and
electric wires keeping proper distances away from stereo
equipment, personal computers, etc.
Indoor unit
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
9
5 Preparation
▪ Fluorescent lights. When installing a wireless user interface in a
room with fluorescent lights, mind the following to avoid
interference:
▪ Installation options:
A
▪ Install the wireless user interface as close as possible to the
indoor unit.
a
▪ Install the indoor unit as far as possible from the fluorescent
lights.
▪ Take care that in the event of a water leak, water cannot cause
any damage to the installation space and surroundings.
bc
B
d
680
<45
200
▪ Choose a location where the hot/cold air discharged from the unit
or the operation noise, will NOT disturb anyone.
WARNING
a
Do NOT place objects below the indoor and/or outdoor unit
that may get wet. In this condition, condensation on the
main unit or refrigerant pipes, air filter dirt or drain blockage
may cause dripping. This results in fouling or failure of the
object which is located beneath the unit.
b c
680
d
f e
C
▪ Air flow. Make sure nothing blocks the air flow.
a
▪ Drainage. Make sure condensation water can be evacuated
properly.
bc
680
g
▪ Ceiling insulation. When conditions in the ceiling exceed 30°C
and a relative humidity of 80%, or when fresh air is inducted into
the ceiling, then additional insulation is required (minimum 10 mm
thickness, polyethylene foam).
A
B
C
a
b
c
d
e
f
g
▪ Protective guards. Make sure to install protective guards on the
suction and discharge side to prevent somebody from touching
the fan blades or heat exchanger.
Do NOT install the unit in the following places:
d
f
e
Standard rear suction
Installation with rear duct and duct service opening
Installation with rear duct, no duct service opening
Ceiling surface
Ceiling opening
Service access panel (optional accessory)
Air filter
Air inlet filter
Duct service opening
Interchangeable plate
▪ In places where a mineral oil mist, spray or vapour may be
present in the atmosphere. Plastic parts may deteriorate and fall
off or cause water leakage.
5.3
Preparing refrigerant piping
It is NOT recommended to install the unit in the following places
because it may shorten the life of the unit:
5.3.1
Refrigerant piping requirements
▪ Where the voltage fluctuates a lot
INFORMATION
▪ In vehicles or vessels
Also read the precautions and requirements in the
"General safety precautions" chapter.
▪ Where acidic or alkaline vapour is present
▪ Use suspension bolts for installation.
Refrigerant piping diameter
▪ Spacing. Mind the following requirements:
Use the same diameters as the connections on the outdoor units:
L1 liquid piping
Ø9.5 mm
L1 gas piping
Ø15.9 mm
Refrigerant piping material
≥300
a
b
▪ Piping material: Phosphoric acid deoxidised seamless copper.
▪ Piping temper grade and thickness:
Outer diameter
(Ø)
g f
9.5 mm (3/8")
Annealed (O)
15.9 mm (5/8")
Annealed (O)
(a)
e
a
b
c
d
e
f
g
c
Thickness (t)(a)
≥0.8 mm
Ø
t
Depending on the applicable legislation and the unit's
maximum working pressure (see "PS High" on the unit
name plate), larger piping thickness might be required.
▪ Flare connections: Only use annealed material.
Service space
Drain pipe
Power supply wiring port
Transmission wiring port
Maintenance drain outlet
Gas pipe
Liquid pipe
Installer and user reference guide
10
d
Temper grade
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
6 Installation
5.3.2
Refrigerant piping insulation
6
Installation
▪ with a heat transfer rate between 0.041 and 0.052 W/mK (0.035
and 0.045 kcal/mh°C)
6.1
Overview: Installation
▪ with a heat resistance of at least 120°C
This chapter describes what you have to do and know on-site to
install the system.
▪ Use polyethylene foam as insulation material:
▪ Insulation thickness
Typical workflow
Pipe outer diameter
(Øp)
Insulation inner
diameter (Øi)
Insulation thickness
(t)
9.5 mm (3/8")
10~14 mm
≥13 mm
15.9 mm (5/8")
16~20 mm
≥13 mm
▪ Mounting the outdoor unit.
▪ Mounting the indoor unit.
▪ Connecting the refrigerant piping.
Øi
Øp
Installation typically consists of the following stages:
▪ Checking the refrigerant piping.
t
▪ Charging refrigerant.
▪ Connecting the electrical wiring.
If the temperature is higher than 30°C and the humidity is higher
than RH 80%, the thickness of the insulation materials should be at
least 20 mm to prevent condensation on the surface of the
insulation.
Ambient
temperature
Humidity
Minimum thickness
≤30°C
75% to 80% RH
15 mm
>30°C
≥80% RH
20 mm
5.4
Preparing electrical wiring
5.4.1
About preparing electrical wiring
INFORMATION
▪ Finishing the outdoor installation.
▪ Finishing the indoor installation.
INFORMATION
This chapter only describes installation instructions specific
to the indoor unit. For the other instructions, see:
▪ The installation manual of the outdoor unit
▪ The installation manual of the user interface
▪ The installation manual of the optional accessories
6.2
Mounting the indoor unit
6.2.1
Precautions when mounting the indoor
unit
Also read the precautions and requirements in the
"General safety precautions" chapter.
INFORMATION
WARNING
Also read the precautions and requirements in the
following chapters:
▪ If the power supply has a missing or wrong N-phase,
equipment might break down.
▪ Establish proper earthing. Do NOT earth the unit to a
utility pipe, surge absorber, or telephone earth.
Incomplete earthing may cause electrical shock.
▪ Install the required fuses or circuit breakers.
▪ General safety precautions
▪ Preparation
6.2.2
Guidelines when installing the indoor unit
INFORMATION
▪ Secure the electrical wiring with cable ties so that the
cables do NOT come in contact with sharp edges or
piping, particularly on the high-pressure side.
▪ Do NOT use taped wires, stranded conductor wires,
extension cords, or connections from a star system.
They can cause overheating, electrical shock or fire.
▪ Do NOT install a phase advancing capacitor, because
this unit is equipped with an inverter. A phase
advancing capacitor will reduce performance and may
cause accidents.
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.
▪ In case of installation with duct, but no duct service opening.
Modify the position of the air filters.
3
1
WARNING
2
▪ All wiring must be performed by an authorized
electrician and must comply with the applicable
legislation.
4
▪ Make electrical connections to the fixed wiring.
▪ All components procured on the site and all electrical
construction must comply with the applicable
legislation.
1
Remove the air filter(s) from the outside of the unit.
2
Remove the interchangeable plate.
WARNING
3
Install the air filter(s) on the inside of the unit.
ALWAYS use multicore cable for power supply cables.
4
Reinstall the interchangeable plate.
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
11
6 Installation
▪ When installing an air inlet duct, select fixing screws that stick out
5 mm on the inside of the flange to protect the air filter from
damage during maintenance of the filter.
a
▪ Ceiling opening size. Make sure the ceiling opening is within the
following limits:
4×
b
a1
b1
c1
c
Air inlet duct
Inside of the flange
Fixing screw
1400
a
b
c
▪ 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.
d
a
▪ Installation options:
A
c
b c 460 e
B
a1
a2
b1
c1
a
b
c
d
425
160
(160~300)
180
a
d
1460
180
b
A
B
a
b
c
d
e
460
d
630
700
b
Nut (field supply)
Double nut (field supply)
Washer (accessories)
Hanger bracket (attached to the unit)
Indoor unit
Pipe
Hanger bracket pitch (suspension)
Suspension bolt spacing
INFORMATION
≥350
a
1450
b1
a2
5 mm
c
d
▪ The fan speed of the indoor unit is preset to ensure the
standard external static pressure.
1460
Mounting the air inlet with a canvas connection
Mounting the air inlet panel directly
Ceiling surface
Ceiling opening
Air inlet panel (optional accessory)
Indoor unit (back side)
Canvas connection for air inlet panel (optional accessory)
▪ To set a higher or lower external static pressure, reset
the initial setting with the user interface.
▪ Installation example:
b
a
c
d
e
NOTICE
The unit can be used with bottom suction by replacing the
interchangeable plate by the air filter holding plate.
a
b
c
d
e
a
Anchor
Ceiling slab
Long nut or turn-buckle
Suspension bolt
Indoor unit
▪ Install the unit temporarily.
5
Attach the hanger bracket to the suspension bolt.
6
Fix it securely.
▪ Level. Make sure the unit is level at all four corners using a level
or a water-filled vinyl tube.
b
a
b
a
b
a
a
b
Air filter holding plate with air filter(s)
Interchangeable plate
▪ Suspension bolts. Use 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.
Installer and user reference guide
12
7
Water level
Vinyl tube
Tighten the upper nut.
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.
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
6 Installation
Guidelines when installing the ducting
▪ Rising piping. If necessary to make the slope possible, you can
install rising piping.
The ducting is to be field supplied.
▪ Drain hose inclination: 0~75 mm to avoid stress on the piping
and to avoid air bubbles.
▪ Air inlet side. Attach the duct and intake-side flange (field
supply). For connecting the flange, use 7 accessory screws.
a b
c
b
▪ Rising piping: ≤300 mm from the unit, ≤625 mm perpendicular
to the unit.
a
a b
e
e
a
b
c
d
e
d
Connection screw (accessory)
Flange (field supply)
Main unit
Insulation (field supply)
Aluminium tape (field supply)
(mm)
a b c
▪ Filter. Be sure to attach an air filter inside the air passage on the
intake side. Use an air filter with dust collecting efficiency ≥50%
(gravimetric method). The included filter is not used when the
intake duct is attached.
▪ Air leaks. Wind aluminium tape around the intake side flange and
duct connection. Make sure there are no air leaks at any other
connection.
a
b
c
d
d
▪ 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.
▪ Insulation. Insulate the duct to prevent condensation from
forming. Use glass wool or polyethylene foam 25 mm thick.
a
Guidelines when installing the drain
piping
Make sure condensation water can be evacuated properly. This
involves:
≤625
6.2.4
d
Metal clamp (accessory)
Drain hose (accessory)
Rising drain piping (vinyl pipe of 25 mm nominal diameter
and 32 mm outer diameter) (field supply)
Hanging bars (field supply)
≥100
▪ Air outlet side. Connect the duct according to the inside
dimension of the outlet-side flange.
1000~1500
0~75
d
≤300
≤625
6.2.3
(mm)
▪ General guidelines
a
▪ Connecting the drain piping to the indoor unit
T-joint
To connect the drain piping to the indoor unit
▪ Checking for water leaks
General guidelines
NOTICE
▪ Drain pump. For this "high lift type", the drainage sounds will be
reduced when the drain pump is installed in a higher location.
Recommended height is 300 mm.
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.
▪ 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).
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).
▪ 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.
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.
▪ Pipe length. Keep drain piping as short as possible.
1~1.5 m
a
O
X
a
Hanging bar
Allowed
Not allowed
▪ Condensation. Take measures against condensation. Insulate
the complete drain piping in the building.
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
13
6 Installation
1
a
2~6
b
e
4
f
d
5
c
2
ab
6
A
1
c
d
A'
A'
e
f
≤4 mm
A-A'
a
b
c
d
e
f
d
c
b
a
3
g
h
Drain pipe connection (attached to the unit)
Drain hose (accessory)
Metal clamp (accessory)
Large sealing pad (accessory)
Insulation piece (drain pipe) (accessory)
Drain piping (field supply)
1 2
i
j
NOTICE
3 L N
l
k m
a
b
c
d
e
f
g
h
i
j
k
l
m
n
▪ Do NOT remove the drain pipe plug. Water might leak
out.
▪ Use the drain outlet only to discharge the water if the
drain pump is not used or before maintenance.
▪ Insert and remove the drain plug gently. Excessive
force may deform the drain socket of the drain pan.
Pull out the plug.
▪ Do NOT wiggle the plug up and down.
a
n
j
Switch box cover
Wiring diagram
Power supply wiring port
Transmission wiring port
Indoor PCB 2
Indoor PCB 3
Indoor PCB 1
Switch box
Plastic clamp
Power supply wiring
Power supply terminal board
Terminal board for unit transmission wiring
User interface wiring
Transmission wiring between units
5
Turn ON the power.
6
Start cooling operation (see To perform a test run).
7
Gradually pour approximately 1 l of water through the air
discharge outlet, and check for leaks.
Push in the plug.
▪ Set the plug and push it in using a Phillips screwdriver.
a
b
f
b
a
b
c
Drain plug
Phillips screwdriver
a
To check for water leaks
a
b
c
d
e
f
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.
2
Remove the switch box cover (a).
3
Connect the single-phase power supply (50 Hz, 230 V) to
connections No. 1 and No. 2 on the terminal block for power
supply and earth.
4
Reattach the switch box cover (a).
Installer and user reference guide
14
d
e
Water inlet
Portable pump
Water inlet cover
Bucket (adding water through water inlet)
Drain outlet for maintenance
Refrigerant pipes
8
Turn OFF the power.
9
Disconnect the electrical wiring.
10 Remove the control box cover.
11 Disconnect the power supply and earth.
12 Reattach the control box cover.
When electrical wiring is finished already
1
Start cooling operation (see To perform a test run).
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
6 Installation
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).
6.3
Connecting the refrigerant piping
6.3.1
About connecting the refrigerant piping
Before connecting the refrigerant piping
Unit
Installation period
Outdoor unit
Make sure the outdoor and indoor unit are mounted.
Typical workflow
Indoor unit
Protection method
>1 month
Pinch the pipe
<1 month
Pinch or tape the pipe
Regardless of the
period
Connecting the refrigerant piping involves:
INFORMATION
▪ Connecting the refrigerant piping to the outdoor unit
Do NOT open the refrigerant stop valve before checking
the refrigerant piping. When you need to charge additional
refrigerant it is recommended to open the refrigerant stop
valve after charging.
▪ Connecting the refrigerant piping to the indoor unit
▪ Insulating the refrigerant piping
▪ Keeping in mind the guidelines for:
▪ Pipe bending
6.3.3
Guidelines when connecting the
refrigerant piping
▪ Flaring pipe ends
▪ Brazing
Take the following guidelines into account when connecting pipes:
▪ Using the stop valves
6.3.2
Precautions when connecting the
refrigerant piping
▪ 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.
INFORMATION
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
DANGER: RISK OF BURNING
CAUTION
▪ 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
b
▪ Do NOT use mineral oil on flared part.
▪ NEVER install a drier to this unit to guarantee its
lifetime. The drying material may dissolve and damage
the system.
c
d
a
b
c
d
NOTICE
Take the following precautions on refrigerant piping into
account:
▪ Avoid anything but the designated refrigerant to get
mixed into the refrigerant cycle (e.g. air).
▪ Only use R32 or R410A2 when adding refrigerant.
▪ Only use installation tools (e.g. manifold gauge set) that
are exclusively used for R32 or R410A2 installations to
withstand the pressure and to prevent foreign materials
(e.g. mineral oils and moisture) from mixing into the
system.
▪ Install the piping so that the flare is NOT subjected to
mechanical stress.
▪ Protect the piping as described in the following table to
prevent dirt, liquid or dust from entering the piping.
Torque wrench
Spanner
Piping union
Flare nut
Piping size
(mm)
Tightening
Flare
torque (N•m) dimensions (A)
(mm)
Ø9.5
33~39
12.8~13.2
Ø15.9
63~75
19.3~19.7
Flare shape
(mm)
90°±2
45 ±
° 2
A
R=0.4~0.8
6.3.4
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).
▪ Use caution when passing copper tubes through walls
(see figure below).
(2)
Refer to the outdoor unit specifications for the type of refrigerant to be used.
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Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
15
6 Installation
6.3.5
▪ Do NOT re-use flares. Use new flares to prevent
refrigerant gas leakage.
▪ 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.
▪ Use flare nuts that are included with the unit. Using
different flare nuts may cause refrigerant gas leakage.
6.3.7
To flare the pipe end
CAUTION
▪ Incomplete flaring 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.
To connect the refrigerant piping to the
indoor unit
WARNING: FLAMMABLE MATERIAL
The R32 refrigerant (if applicable) in this unit is mildly
flammable.1
▪ Pipe length. Keep refrigerant piping as short as possible.
a
b
a
b
▪ Flare connections. Connect refrigerant piping to the unit using
flare connections.
Cut exactly at right angles.
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.
▪ Insulation. Insulate the refrigerant piping on the indoor unit as
follows:
A
a
b
c
B
d b e f
a b
c
d b e f
A
1
Flare tool for
R410A or R32
(clutch type)
A
0~0.5 mm
5
Wing nut type
(Ridgid-type)
B
(Imperial-type)
1.0~1.5 mm
1.5~2.0 mm
Flare’s inner surface must be flawless.
The pipe end must be evenly flared in a perfect circle.
Make sure the flare nut is fitted.
3
2
g4
To braze the pipe end
▪ 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.
b
c
d
e
Gas piping
Liquid piping
a
b
c
Insulation material (field supply)
Cable tie (accessory)
Insulation pieces: Large (gas pipe), small (liquid pipe)
(accessories)
Flare nut (attached to the unit)
Refrigerant pipe connection (attached to the unit)
Unit
Sealing pads: Medium 1 (gas pipe), medium 2 (liquid pipe)
(accessories)
1
2
3
4
The indoor unit and outdoor unit have flare connections. Connect
both ends without brazing. If brazing should be needed, take the
following into account:
a
1
A
B
d
e
f
g
c
6.3.6
2
A
b
a
b
c
g4
Conventional flare tool
Clutch type
Check that the flaring is properly made.
a
3
Turn up the seams of the insulation pieces.
Attach to the base of the unit.
Tighten the cable ties on the insulation pieces.
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.
6.4
Connecting the electrical wiring
6.4.1
About connecting the electrical wiring
Typical workflow
Connecting the electrical wiring typically consists of the following
stages:
f
a
b
c
d
e
f
f
Refrigerant piping
Part to be brazed
Taping
Manual valve
Pressure-reducing valve
Nitrogen
1
Making sure the power supply system complies with the
electrical specifications of the units.
2
3
Connecting the electrical wiring to the outdoor unit.
Connecting the electrical wiring to the indoor unit.
4
Connecting the main power supply.
▪ Do NOT use anti-oxidants when brazing pipe joints.
Residue can clog pipes and break equipment.
(1)
Only for appliances using R32 refrigerant. Refer to the outdoor unit specifications for the type of refrigerant to be used.
Installer and user reference guide
16
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
6 Installation
6.4.2
6.4.4
Precautions when connecting the
electrical wiring
NOTICE
INFORMATION
▪ Follow the wiring diagram (delivered with the unit,
located on the switch box cover).
Also read the precautions and requirements in the
following chapters:
▪ Make sure the electrical wiring does NOT obstruct
proper reattachment of the service cover.
▪ General safety precautions
▪ Preparation
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.
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
NOTICE
WARNING
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.
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.
6.4.3
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.
Guidelines when connecting the electrical
wiring
Keep the following in mind:
▪ If stranded conductor wires are used, install a round crimp-style
terminal on the end of the wire. Place the round crimp-style
terminal on the wire up to the covered part and fasten the terminal
with the appropriate tool.
b
To connect the electrical wiring on the
indoor unit
WARNING
a
a
b
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.
Stranded conductor wire
Round crimp-style terminal
▪ Use the following methods for installing wires:
Wire type
Installation method
5
cb
Single-core wire
Reattach the service cover.
▪ When using 1 user interface with 1 indoor unit.
A
AA´
A´
c
a
a
a
b
a
b
c
c
1 2 3 L N
1 2 3 L N
a
b
c
a Curled single-core wire
b Screw
c Flat washer
Stranded conductor
wire with round
crimp-style terminal
cb
a
B
bc
B
a
L N
1 2 3
L N
1 2 3
P1 P2
P1 P2
a Terminal
b Screw
c Flat washer
O Allowed
d
P1 P2
d
P1 P2
▪ When using 2 user interfaces3
X Not allowed
(3)
Dashed line represents separate power supply.
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Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
17
7 Configuration
a
a
▪ Otherwise, refer to the table with Ssc values for FDA125A on the
extranet.
b
b
c
▪ If the Ssc value is NOT mentioned in the table for the used
combination, use the common power supply wire delivered with
the unit.
c
▪ If the Ssc value is mentioned in the table, both the common
power supply wire or a separate power supply can be used, but
a separate power supply is preferred.
1 2 3 L N
1 2
3 L N
L N
1 2 3
P1 P2
a
d
P1 P2
d
P1 P2
a
INFORMATION
▪ When using group control3
a
b
a
a
b
c
c
a
a
In case of group control it is not necessary to assign an
address to the indoor unit. The address is automatically set
when the power is activated.
a
b
b
b
b
c
c
c
c
6.4.5
1 2 3 L N
1 2 3 L N
Wire for common power supply (accessory)
Specifications of standard wiring
components
1 2 3 L N
Component
L N
1 2 3
P1 P2
d
L N
1 2 3
P1 P2
L N
1 2 3
Power supply
cable
P1 P2
P1 P2
a
b
c
d
Power supply
Main switch
Fuse
User interface
▪ Master unit: Be sure to connect the wiring when combining with a
simultaneously operating multi-type in group control.
▪ EN/IEC 61000‑3‑12 provided that the short-circuit power Ssc is
greater than or equal to the minimum Ssc value at the interface
point between the user's supply and the public system.
To comply with EN/IEC 61000‑3‑12, following rules must be
considered:
▪ In case of combination of units 2x FDA125A + RZQ250, use
separate power supplies.
1 2
3 L N
2.1 A
Voltage
220~240 V
Phase
1~
Frequency
50/60 Hz
Wire sizes
Must comply with applicable
legislation
Interconnection cable
User interface cable
Minimum cable section of 2.5 mm²
and applicable for 220~240 V
Vinyl cord with 0.75 to 1.25 mm2
sheath or cables (2 core wires)
Maximum 500 m
Recommended field fuse
Earth leakage circuit breaker
▪ EN/IEC 61000‑3‑12 = European/International Technical
Standard setting the limits for harmonic currents produced by
equipment connected to public low-voltage systems with input
current >16 A and ≤75 A per phase.
▪ It is the responsibility of the installer or user of the equipment to
ensure, by consultation with the distribution network operator if
necessary, that the equipment is connected only to a supply
with a short-circuit power Ssc greater than or equal to the
minimum Ssc value.
FDA125A
MCA(a)
(a)
16 A
Must comply with applicable
legislation
MCA=Minimum circuit ampacity. Stated values are
maximum values (see electrical data of combination with
indoor units for exact values).
7
Configuration
7.1
Field settings
Make the following field settings so that they correspond with the
actual installation setup and with the needs of the user:
▪ External static pressure setting using:
▪ Airflow automatic adjustment setting
▪ User interface
▪ Time to clean air filter
To set airflow automatic adjustment
▪ When the air conditioning unit is running in fan operation mode:
(3)
Stop the air conditioning unit.
2
Set second code number to 03.
Dashed line represents separate power supply.
Installer and user reference guide
18
1
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
8 Commissioning
Then4
Setting content:
M
Airflow adjustment is OFF
11(21)
C1
C2
7
01
Press ON/OFF to return to normal operating
mode.
03
8
Commissioning
8.1
Overview: Commissioning
This chapter describes what you have to do and know to
commission the system after it is installed.
Possible consequence: The operation lamp
will light up and the unit will start the fan
operation for airflow automatic adjustment.
Typical workflow
Operation stops after 1 to 8 minutes.
02
Commissioning typically consists of the following stages:
1
Checking the "Checklist before commissioning".
Possible consequence: Setting is finished
and the operation lamp will be off.
2
If there is no change after airflow adjustment, perform the setting
again.
8.2
User interface
Check the indoor unit setting: the second code number of mode
11(21) must be set to 01.
C1
13 (23)
C2
6
The indoor units are properly mounted.
In case a wireless user interface is used: The indoor unit
decoration panel with infrared receiver is installed.
External static
pressure
The outdoor unit is properly mounted.
01
40
02
50
03
60
04
70
05
80
06
90
07
100
08
110
09
120
10
130
There are NO loose connections or damaged electrical
components in the switch box.
11
140
The insulation resistance of the compressor is OK.
12
150
13
160
14
180
15
200
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 damaged components or squeezed
pipes on the inside of the indoor and outdoor units.
There are NO refrigerant leaks.
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).
±2500 h (light)
The correct pipe size is installed and the pipes are
properly insulated.
The stop valves (gas and liquid) on the outdoor unit are
fully open.
8.3
To perform a test run
Then4
If you want an interval of…
(air contamination)
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.
Change the second code number according to the external static
pressure of the duct to be connected as in table below.
M
Performing a test run for the system.
M
C1
C2
10(20)
0
01
±1250 h (heavy)
02
No notification
3
02
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.
▪ 2 user interfaces: When using 2 user interfaces, one must be set
to "MAIN" and the other to "SUB".
(4)
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
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
19
9 Hand-over to the user
1
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.
2
Action
Select Test Operation.
Return
#
3
Action
Press.
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.
8.4
A
1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
Perform introductory steps.
1
Result
Service Settings
Setting
The unit returns to normal
operation, and the home
menu is displayed.
Error codes when performing a
test run
B
If the installation of the outdoor unit has NOT been done correctly,
the following error codes may be displayed on the user interface:
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
2
On the user interface, set the unit to cooling operation
mode.
Error code
Nothing displayed
(the currently set
temperature is not
displayed)
1
Action
Result
3
E3, E4 or L8
Go to the home menu.
Cool
2
Press at least 4 seconds.
Select Test Operation.
28°C
The Service Settings menu
is displayed.
Service Settings
Return
Press.
▪ The stop valves are closed.
▪ The air inlet or air outlet is blocked.
Set to
1/3
E7
L4
The air inlet or air outlet is blocked.
U0
The stop valves are closed.
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.
Setting
Test Operation is
displayed on the home
menu.
There is a missing phase in case of threephase power supply units.
Note: Operation will be impossible. Turn
OFF the power, recheck the wiring, and
switch two of the three electrical wires.
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
4
is a
and
and
and
▪ The fuse on the outdoor or indoor unit
PCB has blown.
Start the test run
#
Possible cause
▪ The wiring is disconnected or there
wiring error (between power supply
outdoor unit, between outdoor unit
indoor units, between indoor unit
user interface).
U4 or UF
The inter-unit branch wiring is not correct.
UA
The outdoor and indoor unit are
incompatible.
Cool
9
TestReturn
Operation
5
Press within 10 seconds.
3
Check operation for 3 minutes.
4
Stop the test run.
#
1
Test run starts.
Once the test run is finished and the unit operates properly, please
make sure the following is clear for the user:
▪ Make sure that the user has the printed documentation and ask
him/her to keep it for future reference. Inform the user that he can
find the complete documentation on the url as earlier described in
this manual.
▪ Explain the user how to properly operate the system and what to
do in case of problems.
Action
Press at least 4 seconds.
Installer and user reference guide
20
Hand-over to the user
Setting
Result
▪ Show the user what to do in relation to maintaining the unit.
The Service Settings menu
is displayed.
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
10 Disposal
10
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 specialised treatment facility for reuse,
recycling and recovery.
11
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).
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
21
11 Technical data
11.1
Wiring diagram
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 UNIT
:
TERMINAL STRIP
:
OUTDOOR UNIT
:
WIRE CLAMP
A
INDOOR
OUTDOOR
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
:
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
:
THERMO SWITCH
DB*
:
DIODE BRIDGE
R*
:
RESISTOR
DS*
:
DIP SWITCH
R*T
:
THERMISTOR
E*H
:
HEATER
RC
:
RECEIVER
F*U, FU* (FOR CHARACTERISTICS
:
FUSE
S*C
:
LIMIT SWITCH
REFER TO PCB INSIDE YOUR UNIT)
SWITCHING POWER SUPPLY
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 (LOW)
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*, MRN*
:
MAGNETIC RELAY
X*
:
TERMINAL
N
:
NEUTRAL
X*M
:
TERMINAL STRIP (BLOCK)
NUMBER OF PASSES THROUGH FERRITE CORE
Y*E
:
ELECTRONIC EXPANSION VALVE COIL
n=*
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
Installer and user reference guide
22
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
12 About the system
For the user
12
d
About the system
f
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.
e
INFORMATION
b
a
c
The sound pressure level is less than 70 dBA.
g
WARNING: FLAMMABLE MATERIAL
The R32 refrigerant (if applicable) in this unit is mildly
flammable.1
h
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.
a
b
c
d
e
f
g
h
▪ 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.
Indoor unit
Outdoor unit
User interface
Air inlet
Air outlet
Refrigerant piping and electric wiring
Drain pipe
Earth wire to ground outdoor unit to prevent electric
shocks.
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
WARNING
Never touch the internal parts of the controller.
Ask your dealer to install and reinstall the air conditioner.
Incomplete installation may result in a water leakage,
electric shock, and fire.
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.
NOTICE
NOTICE
Improper installation or attachment of equipment or
accessories could result in electric shock, short-circuit,
leaks, fire or other damage to the equipment. Only use
accessories, optional equipment and spare parts made or
approved by Daikin.
12.1
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.
Components
NOTICE
INFORMATION
Never press the button of the user interface with a hard,
pointed object. The user interface may be damaged.
The following illustration is an example and might NOT
match your system layout.
NOTICE
Never pull or twist the electric wire of the user interface. It
may cause the unit to malfunction.
12.2
(1)
Information requirements for fan
coil units
Item
Symbol
Value
Unit
Cooling capacity (sensible)
Prated,c
A
kW
Cooling capacity (latent)
Prated,c
B
kW
Heating capacity
Prated,h
C
kW
Total electric power input
Pelec
D
kW
Only for appliances using R32 refrigerant. Refer to the outdoor unit specifications for the type of refrigerant to be used.
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
23
13 User interface
Item
Symbol
Value
Unit
WARNING
Sound power level (per speed
setting, if applicable)
LWA
E
dB
Never use a flammable spray such as hair spray, lacquer
or paint near the unit. It may cause a fire.
Contact details:
CAUTION
DAIKIN INDUSTRIES CZECH REPUBLIC s.r.o. U Nové Hospody
1/1155, 301 00 Plzeň Skvrňany, Czech Republic
FDA125A
A
B
C
D
E
7.83
4.27
13.50
0.35
66
It is not good for your health to expose your body to the air
flow for a long time.
CAUTION
To avoid oxygen deficiency, ventilate the room sufficiently
if equipment with burner is used together with the system.
13
User interface
CAUTION
Do not operate the system when using a room fumigationtype insecticide. This could cause the chemicals to
become deposited in the unit, which could endanger the
health of those who are hypersensitive to chemicals.
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.
NOTICE
Do not place the user interface in a place exposed to direct
sunlight. The LCD display may get discoloured or fail to
display the data.
This operation manual will give a non-exhaustive overview of the
main functions of the system.
NOTICE
For more information about the user interface, see the operation
manual of the installed user interface.
14
Do not place items which might be damaged by moisture
under the indoor unit. Condensation may form if the
humidity is above 80%, if the drain outlet is blocked or the
filter is polluted.
Before operation
NOTICE
Arrange the drain hose to ensure smooth drainage.
Incomplete drainage may cause the building, furniture, etc.
to get wet.
WARNING
Ask your dealer for improvement, repair, and maintenance.
Incomplete improvement, repair, and maintenance may
result in water leakage, electric shock and fire.
WARNING
Ask your dealer to move and reinstall the air conditioner.
Incomplete installation may result in a water leakage,
electric shock, and fire.
WARNING
Never let the indoor unit or the user interface get wet. It
may cause an electric shock or a fire.
WARNING
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.
WARNING
This operation manual is for the following systems with standard
control. Before initiating operation, contact your dealer for the
operation that corresponds to your system type and mark. If your
installation has a customised control system, ask your dealer for the
operation that corresponds to your system.
15
Operation
15.1
Operation range
For combination with R410A outdoor unit, refer to the following table:
Outdoor units
RR125
RQ125
Avoid placing the user interface in a place where it can be
splashed with water. Water entering the machine may
cause an electric leak or may damage the internal
electronic parts.
RZQG125
WARNING
This unit contains electrical and hot parts.
Installer and user reference guide
24
Heating
–15~46°C DB
—
Indoor
temperature
18~37°C DB
—
RZQSG125
12~28°C WB
Outdoor
temperature
–5~46°C DB
Indoor
temperature
18~37°C DB
Outdoor
temperature
Indoor
temperature
WARNING
Before operating the unit, be sure the installation has been
carried out correctly by an installer.
Cooling
Outdoor
temperature
–9~21°C DB
–10~15°C WB
10~27°C DB
12~28°C WB
–15~50°C DB
–19~21°C DB
–20~15.5°C WB
18~37°C DB
10~27°C DB
12~28°C WB
Outdoor
temperature
–15~46°C DB
Indoor
temperature
20~37°C DB
–14~21°C DB
–15~15.5°C WB
10~27°C DB
14~28°C WB
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
16 Energy saving and optimum operation
Outdoor units
RZQ250
Outdoor
temperature
Indoor
temperature
Cooling
Heating
–5~46°C DB
–14~21°C DB
CAUTION
Do not operate the system when using a room fumigationtype insecticide. This could cause the chemicals to
become deposited in the unit, which could endanger the
health of those who are hypersensitive to chemicals.
–15~15°C WB
20~37°C DB
10~27°C DB
14~28°C WB
WARNING
≤80%(a)
Indoor humidity
Do not place a flammable spray bottle near the air
conditioner and do not use sprays. Doing so may result in
a fire.
For combination with R32 outdoor unit, refer to the following table:
Outdoor units
RZAG125
RZASG125
Cooling
Heating
Outdoor
temperature
–20~52°C DB
–19.5~21°C DB
Indoor
temperature
18~37°C DB
–20~15.5°C WB
–15~46°C DB
Indoor
temperature
20~37°C DB
15.2
▪ Prevent direct sunlight from entering a room during cooling
operation by using curtains or blinds.
–14~21°C DB
▪ Ventilate often. Extended use requires special attention to
ventilation.
–15~15.5°C WB
10~27°C DB
14~28°C WB
Indoor humidity
(a)
10~27°C DB
12~28°C WB
Outdoor
temperature
Observe the following precautions to ensure the system operates
properly.
≤80%(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.
Operation procedure
▪ 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.
▪ If there was a power failure during operation, the system
automatically restarts immediately after the power supply is
recovered.
▪ The setting temperature range of the user interface is described in
chapter "Operation range".
▪ If you select a function which is not available, the message NOT
AVAILABLE appears on the user interface.
▪ Read the documentation carefully before operating the user
interface to ensure the best possible performance.
▪ Keep doors and windows closed. If the doors and windows remain
open, air will flow out of your room causing a decrease in the
cooling or heating effect.
▪ Be careful not to cool or heat too much. To save energy, keep the
temperature setting at a moderate level.
▪ Never place objects near the air inlet or the air outlet of the unit. It
may cause deterioration in the effect or stop the operation.
▪ Turn off the main power supply switch to the unit when the unit is
not used for longer periods of time. If the switch is on, it consumes
electricity. Before restarting the unit, turn on the main power
supply switch 6 hours before operation to ensure smooth running.
▪ When the display shows
(time to clean the air filter), clean the
filters (see "17.2.2 To clean the air filter" on page 26).
▪ Condensation may form if the humidity is above 80% or if the
drain outlet gets blocked.
▪ Adjust the room temperature properly for a comfortable
environment. Avoid excessive heating or cooling. Notice that it
may take some time for the room temperature to reach the set
temperature. Consider using the timer setting options.
▪ Adjust the air flow direction to avoid cool air from gathering on the
floor or warm air against the ceiling. (Up during cooling or dry
operation to the ceiling and down during heating operation.)
▪ Avoid direct air flow to room inhabitants.
16
Energy saving and optimum
operation
CAUTION
Never expose little children, plants or animals directly to
the air flow.
17
Maintenance and service
17.1
Overview: Maintenance and
service
The installer has to perform a yearly maintenance.
WARNING
Do NOT place objects below the indoor and/or outdoor unit
that may get wet. In this condition, condensation on the
main unit or refrigerant pipes, air filter dirt or drain blockage
may cause dripping. This results in fouling or failure of the
object which is located beneath the unit.
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
NOTICE
Refrigerant type: R410A
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.
Global warming potential (GWP) value: 2087.5
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
25
17 Maintenance and service
NOTICE
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.
When cleaning the heat exchanger, make sure to remove
the switch box and fan motor. Water or detergent might
deteriorate the insulation of electronic components and
result in burnout of these components.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
WARNING
Be carefull with ladders when working in high places.
Please contact your installer for more information.
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.
17.2
Cleaning the air filter, suction
grille, air outlet and outside panels
17.2.1
To clean the air outlet and outside panels
WARNING
Do NOT let the indoor unit get
consequence: Electric shock or fire.
Turn off any combustible heating devices, ventilate the
room, and contact the dealer from where you purchased
the unit.
Possible
NOTICE
Do not use the unit until a service person confirms that the
part from which the refrigerant leaked has been repaired.
▪ Do NOT use gasoline, benzene, thinner polishing
powder or liquid insecticide. Possible consequence:
Discoloration and deformation.
WARNING
▪ Do NOT use water or air of 50°C or higher. Possible
consequence: Discoloration and deformation.
▪ 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.
wet.
▪ 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.
NOTICE
Maintenance must be done by an authorised installer or
service agent.
17.2.2
To clean the air filter
When to clean the air filter:
We recommend to do maintenance at least once a year.
However, applicable legislation might require shorter
maintenance intervals.
▪ Rule of thumb: Clean every 6 months. If the air in the room is
extremely contaminated, increase the cleaning frequency.
CAUTION
▪ 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.
Before accessing terminal devices, make sure to interrupt
all power supply.
DANGER: RISK OF ELECTROCUTION
To clean the air conditioner or air filter, be sure to stop
operation and turn all power supplies off. Otherwise, an
electric shock and injury may result.
▪ If the dirt becomes impossible to clean, change the air filter
(= optional equipment).
How to clean the air filter:
1
Remove the air filters by pulling their cloth upward (in case of
rear suction) or backward (in case of bottom suction).
rear suction
WARNING
bottom suction
To prevent electric shocks or fire:
▪ Do NOT rinse the unit.
▪ Do NOT operate the unit with wet hands.
▪ Do NOT place any objects containing water on the unit.
CAUTION
After a long use, check the unit stand and fitting for
damage. If damaged, the unit may fall and result in injury.
CAUTION
2
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.
Do not touch the heat exchanger fins. These fins are sharp
and could result in cutting injuries.
Installer and user reference guide
26
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
18 Troubleshooting
▪ 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.
18
If one of the following malfunctions occur, take the measures shown
below and contact your dealer.
3
Dry the air filter in the shadow.
4
Reattach the air filter. Align the 2 hanger brackets and push the
2 clips in their place and pull the cloth if necessary.
rear suction
Troubleshooting
bottom suction
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.
Turn off the main power
switch.
Confirm that 4 hangers are fixed.
If water leaks from the unit.
Stop the operation.
6
In case of bottom suction, close the air inlet grille.
The operation switch does not work
well.
Turn off the power.
7
Turn ON the power.
8
Press the FILTER SIGN RESET button.
5
Result: The TIME TO CLEAN AIR FILTER notification disappears
from the user interface.
17.3
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.
▪ Turn off the power. The user interface display disappears. When
the main power is turned on, the air conditioner will use some
power, even if it is not operating.
▪ Clean air filters and casings of indoor units. Contact your installer
or maintenance person to clean air filters and casings of the
indoor unit. Maintenance tips and procedures for cleaning are
provided in the installation/operation manuals of dedicated indoor
units. Make sure to install cleaned air filters back in the same
position.
▪ Remove the batteries from the user interface.
17.4
If the user interface display indicates the Notify your installer and
unit number, the operation lamp flashes report the malfunction
and the malfunction code appears.
code.
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 ▪ Check if there is no power failure. Wait
operate at all.
until power is restored. If a 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.
The system stops
immediately after
starting operation.
▪ 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 clogged. Contact
your dealer to clean the air filter.
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.
▪ Check if the earth is connected properly.
▪ Check if there is somewhere a broken wire. Contact your dealer in
case of problems.
▪ Clean air filters and casings of indoor units. Contact your installer
or maintenance person to clean air filters and casings of the
indoor unit. Maintenance tips and procedures for cleaning are
provided in the installation/operation manuals of dedicated indoor
units. Make sure to install cleaned air filters back in the same
position.
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
27
18 Troubleshooting
Malfunction
The system operates
but cooling or heating
is insufficient.
Measure
▪ 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 clogged. Contact
your dealer to clean the air filter (refer to
"Maintenance" in the indoor unit manual).
▪ Check the temperature setting. Refer to
the manual of the user interface.
▪ Check if the fan speed setting is set to
low speed. Refer to the manual of the
user interface.
▪ Check if the air flow angle is proper.
Refer to the manual of the user interface.
▪ Check for open doors or windows. Close
doors and windows to prevent wind from
coming in.
▪ Check if direct sunlight enters the room.
Use curtains or blinds.
▪ Check if there are too many occupants in
the room during cooling operation. Check
if the heat source of the room is
excessive.
▪ If the heat source of the room is
excessive (when cooling). Cooling effect
decreases if heat gain of the room is too
large.
Operation stops
suddenly. (Operation
lamp blinks.)
An abnormal function
happens during
operation.
▪ Check if the air filter is clogged. Contact
your dealer to clean the air filter (refer to
"Maintenance" in the indoor unit manual).
18.1.2
Symptom: Air blow direction is not as
specified
Actual air blow direction is not as shown on the user interface.
Automatic swing setting does not work.
Refer to the manual of the user interface.
18.1.3
Symptom: White mist comes out of a unit
(Indoor unit)
▪ Check if all indoor units connected to
outdoor unit in the multi-system are
operating in the same mode.
▪ When the air conditioner is changed over to heating operation
after defrost operation. Moisture generated by defrost becomes
steam and exits.
▪ The air conditioner may malfunction
because of lightning or radio waves. Turn
the breaker OFF and back ON.
18.1.4
Symptoms that are NOT system
malfunctions
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 air conditioner is in normal condition. It does not restart
immediately because one of its safety devices actuates to prevent
the air conditioner from being overloaded. The air conditioner will
turn on again automatically after 3 minutes.
▪ The air conditioner does not start immediately after the power
supply is turned on. Wait 1 minute until the microcomputer is
prepared for operation.
Installer and user reference guide
28
▪ The fan speed is different from the setting. Pressing the fan speed
control button does not change the fan speed. When the room
temperature reaches the set temperature in heating mode or the
unit’s maximum capacity is reached, the outdoor unit will stop
operation and the indoor unit will operate in fan only mode (low
fan speed). In case of multi-split, the indoor unit alternately
operates in fan stop mode and fan only mode (LL= low fan
speed). This is to prevent the cool air from being blown directly
onto anyone present in the room.
▪ When humidity is high during cooling operation (in oily and dusty
places). 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.
The following symptoms are NOT system malfunctions:
18.1.1
▪ The outdoor unit has stopped. This is because the room
temperature has reached the set temperature. The unit switches
to fan operation. "
" (external control icon) is displayed on
the user interface and the actual operation is different from the
user interface setting. For multi-split models, the microcomputer
executes the following control depending on the operation mode
of other indoor units.
▪ Check if air inlet or outlet of outdoor or
indoor unit is not blocked by obstacles.
Remove any obstacles, turn the breaker
OFF and back ON. If the lamp still blinks,
contact your dealer.
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).
18.1
▪ The air conditioner does not restart immediately when the
temperature setting button is returned to its former position after
pushing. It does not restart immediately because one of its safety
devices actuates to prevent the air conditioner from being
overloaded. The air conditioner will turn on again automatically
after 3 minutes.
Symptom: Noise of air conditioners
(indoor unit)
▪ A "ringing" sound is heard after the unit is started. This sound is
generated by the temperature regulator working. It will quiet down
after about a minute.
▪ 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.
▪ A "squeaking" sound is heard when the system is in operation or
after the stop of operation. Expansion and contraction of plastic
parts caused by temperature change makes this noise.
18.1.5
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.
18.1.6
Symptom: The units can give off odours
The unit can absorb the smell of rooms, furniture, cigarettes, etc.,
and then emit it again.
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
19 Relocation
18.1.7
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.
18.1.8
Symptom: The operation stopped
suddenly (Operation lamp is on)
The air conditioner may stop for system protection due to large
voltage fluctuation. It automatically resumes operation after about 3
minutes.
18.1.9
Symptom: The outdoor fan rotates while
the air conditioner is not in operation
▪ After operation has stopped. The outdoor fan continues to
rotate for another 30 seconds for system protection.
▪ While the air conditioner is not in operation. When the outdoor
temperature is very high, the outdoor fan starts to rotate for
system protection.
18.1.10 Symptom: The heating operation stops
suddenly and a flowing sound is heard
Operation manual
Instruction manual specified for a certain product or
application, explaining how to operate it.
Maintenance instructions
Instruction manual specified for a certain product or
application, which explains (if relevant) how to install,
configure, operate and/or maintain the product or
application.
Accessories
Labels, manuals, information sheets and equipment that are
delivered with the product and that need to be installed
according to the instructions in the accompanying
documentation.
Optional equipment
Equipment made or approved by Daikin that can be
combined with the product according to the instructions in
the accompanying documentation.
Field supply
Equipment not made by Daikin that can be combined with
the product according to the instructions in the
accompanying documentation.
The system is removing frost on the outdoor unit. You should wait for
about 3 to 8 minutes.
19
Relocation
Contact your dealer for removing and reinstalling the total unit.
Moving units requires technical expertise.
20
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 specialised treatment facility for reuse,
recycling and recovery.
21
Glossary
Dealer
Sales distributor for the product.
Authorized installer
Technical skilled person who is qualified to install the
product.
User
Person who is owner of the product and/or operates the
product.
Applicable legislation
All international, European, national and local directives,
laws, regulations and/or codes that are relevant and
applicable for a certain product or domain.
Service company
Qualified company which can perform or coordinate the
required service to the product.
Installation manual
Instruction manual specified for a certain product or
application, explaining how to install, configure and maintain
it.
FDA125A5VEB
Split system air conditioners
4P495031-1 – 2017.06
Installer and user reference guide
29
4P495031-1 2017.06
Copyright 2017 Daikin
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