Daikin FMDQ50B7VEB User manual

INSTALLATION AND
OPERATION MANUAL
FMDQ50B7VEB
FMDQ60B7VEB
FMDQ71B7VEB
FMDQ100B7VEB
FMDQ125B7VEB
Air conditioning system

≥300
153
276
4
680
1 3 442
680
200<45
1 56342
1 3 52
680
1 5342
7
180
460
160
(160~300)
425
1 32
180
460
≥350
1
2
2
3
5
0~75
≤625
A
≤300 mm 1~1.5 m 2
3
1
4
≥100 mm
1
0~625 mm
1
1 2
4 53
6a
7a
7b
7c
6b 6c
8 9
10 11
2
1
3
5
4
700
630
A B
43 2 1
1
1
2
4
56
2
1
5 41 3
26
4
4
A
A
1
2
3
4
5
6a 6b 6c
7a
7b
7c
8
9
10
11

Daikin Europe N.V.
CE - DECLARATION-OF-CONFORMITY CE - KONFORMITÄTSERKLÄRUNG CE - DECLARATION-DE-CONFORMITE CE - CONFORMITEITSVERKLARING
CE - DECLARACION-DE-CONFORMIDAD CE - DICHIARAZIONE-DI-CONFORMITA
CE - ¢H§ø™H ™YMMOPºø™H™
CE - DECLARAÇÃO-DE-CONFORMIDADE СЕ - ЗАЯВЛЕНИЕ-О-СООТВЕТСТВИИ CE - OPFYLDELSESERKLÆRING CE - FÖRSÄKRAN-OM-ÖVERENSTÄMMELSE
CE - ERKLÆRING OM-SAMSVAR CE - ILMOITUS-YHDENMUKAISUUDESTA CE -
PROHLÁŠENÍ-O-SHODĚ
CE -
IZJAVA-O-USKLAĐENOSTI
CE - MEGFELELŐSÉGI-NYILATKOZAT
CE -
DEKLARACJA-ZGODNOŚCI
CE -
DECLARAŢIE-DE-CONFORMITATE
CE - I
ZJAVA O SKLADNOSTI
CE -
VASTAVUSDEKLARATSIOON
CE -
ДЕКЛАРАЦИЯ-ЗА-СЪОТВЕТСТВИЕ
CE -
ATITIKTIES-DEKLARACIJA
CE -
ATBILSTĪBAS-DEKLARĀCIJA
CE -
VYHLÁSENIE-ZHODY
CE - UYUMLULUK-BİLDİRİSİ
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
Â›Ó·È Û‡Ìʈӷ Ì ÙÔ(·) ·ÎfiÏÔ˘ıÔ(·) ÚfiÙ˘Ô(·) ‹ ¿ÏÏÔ ¤ÁÁÚ·ÊÔ(·) ηÓÔÓÈÛÌÒÓ, ˘fi ÙËÓ ÚÔ¸fiıÂÛË fiÙÈ ¯ÚËÛÈÌÔÔÈÔ‡ÓÙ·È Û‡Ìʈӷ Ì ÙȘ Ô‰ËÁ›Â˜ Ì·˜:
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:
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:
01
Directives, as amended.
02
Direktiven, gemäß Änderung.
03
Directives, telles que modifiées.
04
Richtlijnen, zoals geamendeerd.
05
Directivas, según lo enmendado.
06
Direttive, come da modifica.
07
√‰ËÁÈÒv, fiˆ˜ ¤¯Ô˘Ó ÙÚÔÔÔÈËı›.
08
Directivas, conforme alteração em.
09
Директив со всеми поправками.
10
Direktiver, med senere ændringer.
11
Direktiv, med företagna ändringar.
12
Direktiver, med foretatte endringer.
13
Direktiivejä, sellaisina kuin ne ovat muutettuina.
14
v platném znění.
15
Smjernice, kako je izmijenjeno.
16
irányelv(ek) és módosításaik rendelkezéseit.
17
z późniejszymi poprawkami.
18
Directivelor, cu amendamentele respective.
19
Direktive z vsemi spremembami.
20
Direktiivid koos muudatustega.
21
Директиви, с техните изменения.
22
Direktyvose su papildymais.
23
Direktīvās un to papildinājumos.
24
Smernice, v platnom znení.
25
Değiştirilmiş halleriyle Yönetmelikler.
01
following the provisions of:
02
gemäß den Vorschriften der:
03
conformément aux stipulations des:
04
overeenkomstig de bepalingen van:
05
siguiendo las disposiciones de:
06
secondo le prescrizioni per:
07
Ì ًÚËÛË Ùˆv ‰È·Ù¿Íˆv Ùˆv:
08
de acordo com o previsto em:
09
в соответствии с положениями:
10
under iagttagelse af bestemmelserne i:
11
enligt villkoren i:
12
gitt i henhold til bestemmelsene i:
13
noudattaen määräyksiä:
14
za dodržení ustanovení předpisu:
15
prema odredbama:
16
követi a(z):
17
zgodnie z postanowieniami Dyrektyw:
18
în urma prevederilor:
19
ob upoštevanju določb:
20
vastavalt nõuetele:
21
следвайки клаузите на:
22
laikantis nuostatų, pateikiamų:
23
ievērojot prasības, kas noteiktas:
24
održiavajúc ustanovenia:
25
bunun koşullarına uygun olarak:
01 Note *
as set out in
<A>
and judged positively by
<B>
according to the
Certificate
<C>
.
02 Hinweis *
wie in der
<A>
aufgeführt und von
<B>
positiv
beurteilt gemäß
Zertifikat
<C>
.
03 Remarque *
tel que défini dans
<A>
et évalué positivement par
<B>
conformément au
Certificat <C>
.
04 Bemerk *
zoals vermeld in
<A>
en positief beoordeeld door
<B>
overeenkomstig
Certificaat <C>
.
05 Nota
*
como se establece en
<A>
y es valorado
positivamente por
<B>
de acuerdo con el
Certificado <C>
.
06 Nota *
delineato nel
<A>
e giudicato positivamente
da
<B>
secondo il
Certificato <C>
.
07
™ËÌ›ˆÛË
* fiˆ˜ ηıÔÚ›˙ÂÙ·È ÛÙÔ
<A>
Î·È ÎÚ›ÓÂÙ·È ıÂÙÈο
·fi ÙÔ
<B>
Û‡Ìʈӷ Ì ÙÔ
¶ÈÛÙÔÔÈËÙÈÎfi <C>
.
08 Nota
*
tal como estabelecido em
<A>
e com o parecer
positivo de
<B>
de acordo com o
Certificado <C>
.
09 Примечание *
как указано в
<A>
и в соответствии с
положительным решением
<B>
согласно
Свидетельству <C>
.
10 Bemærk *
som anført i
<A>
og positivt vurderet af
<B>
i
henhold til
Certifikat <C>
.
11 Information *
enligt
<A>
och godkänts av
<B>
enligt
Certifikatet <C>
.
12 Merk *
som det fremkommer i
<A>
og gjennom positiv
bedømmelse av
<B>
ifølge
Sertifikat <C>
.
13 Huom *
jotka on esitetty asiakirjassa
<A>
ja jotka
<B>
on
hyväksynyt
Sertifikaatin <C>
mukaisesti.
14 Poznámka *
jak bylo uvedeno v
<A>
a pozitivně zjištěno
<B>
v
souladu s
osvědčením <C>
.
15 Napomena *
kako je izloženo u
<A>
i pozitivno ocijenjeno od
strane
<B>
prema
Certifikatu <C>
.
16 Megjegyzés *
a(z)
<A>
alapján, a(z)
<B>
igazolta a megfelelést,
a(z)
<C> tanúsítvány
szerint.
17 Uwaga *
zgodnie z dokumentacją
<A>
, pozytywną opinią
<B>
i
Świadectwem <C>
.
18
Notă *
aşa cum este stabilit în
<A>
şi apreciat pozitiv
de
<B>
în conformitate cu
Certificatul <C>
.
19 Opomba *
kot je določeno v
<A>
in odobreno s strani
<B>
v
skladu s
certifikatom <C>
.
20 Märkus
*
nagu on näidatud dokumendis
<A>
ja heaks
kiidetud
<B>
järgi vastavalt
sertifikaadile <C>
.
21 Забележка *
както е изложено в
<A>
и оценено
положително от
<B>
съгласно
Cертификата <C>
.
22 Pastaba *
kaip nustatyta
<A>
ir kaip teigiamai nuspręsta
<B>
pagal
Sertifikatą <C>
.
23 Piezīmes *
kā norādīts
<A>
un atbilstoši
<B>
pozitīvajam
vērtējumam saskaņā ar
sertifikātu <C>
.
24 Poznámka *
ako bolo uvedené v
<A>
a pozitívne zistené
<B>
v
súlade s
osvedčením <C>
.
25
Not
*
<A>
‘da belirtildiği gibi ve
<C> Sertifikasına
göre
<B>
tarafından olumlu olarak
değerlendirildiği gibi.
<A> DAIKIN.TCF.024D1/07-2008 <B> TÜV (NB1856) <C> 0510260101
01
a
declares under its sole responsibility that the air conditioning models to which this declaration relates:
02
d
erklärt auf seine alleinige Verantwortung daß die Modelle der Klimageräte für die diese Erklärung bestimmt ist:
03
f
déclare sous sa seule responsabilité que les appareils d'air conditionné visés par la présente déclaration:
04
l
verklaart hierbij op eigen exclusieve verantwoordelijkheid dat de airconditioning units waarop deze verklaring betrekking heeft:
05
e
declara baja su única responsabilidad que los modelos de aire acondicionado a los cuales hace
referencia la
declaración:
06
i
dichiara sotto sua responsabilità che i condizionatori modello a cui è riferita questa dichiarazione:
07
g
‰ËÏÒÓÂÈ Ì ·ÔÎÏÂÈÛÙÈ΋ Ù˘ ¢ı‡ÓË fiÙÈ Ù· ÌÔÓ٤Ϸ ÙˆÓ ÎÏÈÌ·ÙÈÛÙÈÎÒÓ Û˘Û΢ÒÓ ÛÙ· ÔÔ›· ·Ó·Ê¤ÚÂÙ·È Ë ·ÚÔ‡Û· ‰‹ÏˆÛË:
08
p
declara sob sua exclusiva responsabilidade que os modelos de ar condicionado a que esta declaração se refere:
09
u
заявляет, исключительно под свою ответственность, что модели кондиционеров воздуха, к которым относится настоящее заявление:
10
q
erklærer under eneansvar, at klimaanlægmodellerne, som denne deklaration vedrører:
11
s
deklarerar i egenskap av huvudansvarig, att luftkonditioneringsmodellerna som berörs av denna deklaration innebär att:
12
n
erklærer et fullstendig ansvar for at de luftkondisjoneringsmodeller som berøres av denne deklarasjon innebærer at:
13
j
ilmoittaa yksinomaan omalla vastuullaan, että tämän ilmoituksen tarkoittamat ilmastointilaitteiden mallit:
14
c
prohlašuje ve své plné odpovědnosti, že modely klimatizace, k nimž se toto prohlášení vztahuje:
15
y
izjavljuje pod isključivo vlastitom odgovornošću da su modeli klima uređaja na koje se ova izjava odnosi:
16
h
teljes felelőssége tudatában kijelenti, hogy a klímaberendezés modellek, melyekre e nyilatkozat vonatkozik:
17
m
deklaruje na własną i wyłączną odpowiedzialność, że modele klimatyzatorów, których dotyczy niniejsza deklaracja:
18
r
declară pe proprie răspundere că aparatele de aer condiţionat la care se referă această declaraţie:
19
o
z vso odgovornostjo izjavlja, da so modeli klimatskih naprav, na katere se izjava nanaša:
20
x
kinnitab oma täielikul vastutusel, et käesoleva deklaratsiooni alla kuuluvad kliimaseadmete mudelid:
21
b
декларира на своя отговорност, че моделите климатична инсталация, за които се отнася тази декларация:
22
t
visiška savo atsakomybe skelbia, kad oro kondicionavimo prietaisų modeliai, kuriems yra taikoma ši deklaracija:
23
v
ar pilnu atbildību apliecina, ka tālāk uzskaitīto modeĮu gaisa kondicionētāji, uz kuriem attiecas šī deklarācija:
24
k
vyhlasuje na vlastnú zodpovednosť, že tieto klimatizačné modely, na ktoré sa vzťahuje toto vyhlásenie:
25
w
tamamen kendi sorumluluğunda olmak üzere bu bildirinin ilgili olduğu klima modellerinin aşağıdaki gibi olduğunu beyan eder:
EN60335-2-40,
3PW46981-3
Jiro Tomita Director Quality Assurance Ostend, 3rd of November 2008
Low Voltage 2006/95/EC
Machinery 98/37/EC
Electromagnetic Compatibility 2004/108/EC *
FMDQ50B7VEB*, FMDQ60B7VEB*, FMDQ71B7VEB*, FMDQ100B7VEB*, FMDQ125B7VEB*, * = , , 1, 2, 3, ..., 9

Installation and operation manual
1FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
CONTENTS Page
Before installation.............................................................................. 1
Important information regarding the refrigerant used........................ 2
Selecting installation site................................................................... 2
Preparations before installation......................................................... 3
Indoor unit installation ....................................................................... 4
Refrigerant piping work ..................................................................... 4
Drain piping work .............................................................................. 5
Electric wiring work ........................................................................... 6
Wiring example and how to set the remote controller ....................... 7
Wiring example ................................................................................. 8
Field setting....................................................................................... 8
Installation of the decoration panel ................................................. 10
Test operation.................................................................................. 10
Maintenance.................................................................................... 10
Disposal requirements .................................................................... 11
Wiring diagram ................................................................................ 12
BEFORE INSTALLATION
■Leave the unit inside its packaging until you reach the
installation site. Where unpacking is unavoidable, use a sling of
soft material or protective plates together with a rope when
lifting, this to avoid damage or scratches to the unit.
■Refer to the installation manual of the outdoor unit for items not
described in this manual.
■Caution concerning refrigerant series R410A:
The connectable outdoor units must be designed exclusively for
R410A.
■Do not place objects in direct proximity of the outdoor unit and
do not let leaves and other debris accumulate around the unit.
Leaves are a hotbed for small animals which can enter the unit.
Once in the unit, such animals can cause malfunctions, smoke
or fire when making contact with electrical parts.
Precautions
■Do not install or operate the unit in rooms mentioned below.
-Places with mineral oil, or filled with oil vapour or spray like in
kitchens. (Plastic parts may deteriorate.)
- Where corrosive gas like sulphurous gas exists. (Copper
tubing and brazed spots may corrode.)
-Where volatile flammable gas like thinner or gasoline is used.
- Where machines generating electromagnetic waves exist.
(Control system may malfunction.)
-Where the air contains high levels of salt such as air near the
ocean and where voltage fluctuates a lot (e.g. in factories).
Also in vehicles or vessels.
■Do not install accessories on the casing directly. Drilling holes in
the casing may damage electrical wires and consequently cause
fire.
Accessories
Check if the following accessories are included with your unit.
Screws for fixing panels are attached to the air inlet panel.
Optional accessories
■There are two types of remote controllers: wired and wireless.
Select a remote controller according to customer request and
install in an appropriate place.
Refer to catalogues and technical literature for selecting a
suitable remote controller.
■When installing bottom suction: air inlet panel and canvas
connection for the air inlet panel.
FMDQ50B7VEB FMDQ100B7VEB
FMDQ60B7VEB FMDQ125B7VEB
FMDQ71B7VEB Air conditioning system Installation and
operation manual
READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION. KEEP THIS MANUAL IN A HANDY
PLACE FOR FUTURE REFERENCE.
IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DAIKIN DEALER FOR
ADVICE AND INFORMATION.
Installation must be done by a licensed technician.
The choice of materials and installation must comply
with the applicable national and international
regulations.
Metal clamp
1 piece Drain hose 1 piece Washer for hanging bracket
8 pieces
Medium
sealing pad
2 pieces
Insulation for fitting
Large sealing pad
1 piece for gas pipe 1 piece for liquid pipe 1 piece Screws for duct flanges
1 set
16 pieces
Other: installation and operation manual
12

FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
Installation and operation manual
2
For the following items, take special care during
construction and check after installation is finished
Notes to the installer
■Read this manual carefully to ensure correct installation. Be
sure to instruct the customer how to properly operate the system
and show him/her the enclosed operation manual.
■Explain to the customer what system is installed on the site. Be
sure to fill out the appropriate installation specifications in the
chapter "What to do before operation" of the outdoor unit
operation manual.
IMPORTANT INFORMATION REGARDING THE
REFRIGERANT USED
This product contains fluorinated greenhouse gases covered by the
Kyoto Protocol.
Refrigerant type: R410A
GWP(1) value: 1975
(1) GWP = global warming potential
Periodical inspections for refrigerant leaks may be required
depending on European or local legislation. Please contact your local
dealer for more information.
SELECTING INSTALLATION SITE
(See figure 1 and figure 2)
1Select an installation site where the following conditions are
fulfilled and that meets your customer's approval.
- Where optimum air distribution can be ensured.
- Where nothing blocks air passage.
- Where condensate water can be properly drained.
- Where the false ceiling is not noticeably on an incline.
- Where sufficient clearance for maintenance and service can
be ensured.
- Where there is no risk of flammable gas leaking.
- Where piping between indoor and outdoor units is possible
within the allowable limit. (Refer to the installation manual of
the outdoor unit.)
-Keep indoor unit, outdoor unit, power supply wiring and
transmission wiring at least 1 meter away from televisions
and radios.This is to prevent image interference and noise in
those electrical appliances. (Noise may be generated
depending on the conditions under which the electric wave is
generated, even if 1 meter is kept.)
- When installing the wireless remote controller kit, the
distance between wireless remote controller and indoor unit
might be shorter if there are fluorescent lights who are
electrically started in the room. The indoor unit must be
installed as far as possible away from fluorescent lights.
-Do not place objects that are susceptible to moisture directly
beneath the indoor or outdoor units. Under certain
conditions, condensation on the main unit or refrigerant
pipes, air filter dirt or drain blockage may cause dripping,
resulting in fouling or failure of the object concerned.
2Ensure that a protective guard is installed on air suction and air
outlet side to prevent that the fan blades or heat exchanger be
touched.
The protection must comply with relevant European and national
regulations.
3Use suspension bolts for installation. Check whether the ceiling
is strong enough to support the weight of the indoor unit. If there
is a risk, reinforce the ceiling before installing the unit.
Tick ✓
when
checked
■Is the indoor unit fixed firmly?
The unit may drop, vibrate or make noise.
■Is the gas leak test finished?
It may result in insufficient cooling or heating.
■Is the unit fully insulated and checked for air leaks?
Condensate water may drip.
■Does drainage flow smoothly?
Condensate water may drip.
■Does the power supply voltage correspond to that shown on the
name plate?
The unit may malfunction or components may burn out.
■Are wiring and piping correct?
The unit may malfunction or components may burn out.
■Is the unit safely grounded?
Dangerous at electric leakage.
■Is the wiring size according to specifications?
The unit may malfunction or components may burn out.
■Is nothing blocking the air outlet or inlet of either the indoor or
outdoor units?
It may result in insufficient cooling or heating.
■Are refrigerant piping length and additional refrigerant charge
noted down?
The refrigerant charge in the system might not be clear.
■Are the air filters fixed properly (when installing with rear duct)?
Maintenance of the air filters can be impossible.
■Is the external static pressure set?
It may result in insufficient cooling or heating.
1Service space
2Drain pipe
3Power supply wiring port
4Transmission wiring port
5Maintenance drain outlet
6Gas pipe
7Liquid pipe

Installation and operation manual
3FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
PREPARATIONS BEFORE INSTALLATION
1Relation of ceiling opening to unit and suspension bolt position.
(See figure 5)
For installation, choose one of the possibilities as listed further.
Standard rear suction (See figure 6a)
Installation with rear duct and duct service opening (See
figure 6b)
Installation with rear duct, no duct service opening (See
figure 6c)
Mounting the air inlet panel with a canvas connection (See
figure 7a)
Mounting the air inlet panel directly (See figure 7b)
Bottom suction (See figure 7c)
2The fan speed for this indoor unit is preset to provide standard
external static pressure.
3Install the suspension bolts.
(Use M10 size bolt for the suspension bolt.) Use anchors for
existing ceilings, and a sunken insert, sunken anchors or other
field supplied parts for new ceilings to reinforce the ceiling in
order to bear the weight of the unit.
Installation example
(See figure 3)
Model A (mm) B (mm)
FMDQ50 700 738
FMDQ60+71 1000 1038
FMDQ100+125 1400 1438
1Indoor unit
2Pipe
3Suspension bolt pitch (x4)
4Suspension bolt pitch distance
1Ceiling surface
2Ceiling opening
3Service access panel (optional accessory)
4Air filter
5Air inlet duct
6Duct service opening
7Interchangeable plate
NOTE Before installation of the unit (in case of installation
with duct, but no duct service opening): modify the
position of the air filters.
1Remove the air filter(s) at the
outside of the unit
2Remove the interchangeable
plate
3Install the air filter(s) from the
inside of the unit
4Reinstall the interchangeable
plate
NOTE When installing an air inlet duct, select fixing screws
that shall stick out maximum 5 mm at the inside of the
flange to protect the air filter from damage during
maintenance of the filter.
1Air inlet duct
2Inside of the flange
3Fixing screw
1
2
4
3
12
3≤5 mm
1Ceiling surface
2Ceiling opening
3Air inlet panel (Optional accessory)
4Indoor unit (Back side)
5Canvas connection for air inlet panel (Optional accessory)
Model A (mm)
FMDQ50 760
FMDQ60+71 1060
FMDQ100+125 1460
NOTE The unit can be used with bottom suction by replacing
the interchangeable plate by the air filter holding plate.
1Air filter holding plate with air filter(s)
2Interchangeable plate
NOTE For other installation than standard installation, contact
your Daikin dealer for details.
1Anchor
2Ceiling slab
3Long nut or turn-buckle
4Suspension bolt
5Indoor unit
NOTE All the above parts are field supplied.

FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
Installation and operation manual
4
INDOOR UNIT INSTALLATION
When installing optional accessories (except for the air inlet panel),
read also the installation manual of the optional accessories.
Depending on the field conditions, it may be easier to install optional
accessories before the indoor unit is installed.
1Install the indoor unit temporarily.
- Attach the hanger bracket to the suspension bolt. Be sure to
fix it securely by using a nut and washer from the upper and
lower sides of the hanger bracket. (See figure 4)
2Check if the unit is horizontally levelled.
-Do not install the unit tilted.The indoor unit is equipped with a
built-in drain pump and float switch. (If the unit is tilted
against condensate flow, the float switch may malfunction
and cause water to drip.)
- Check if the unit is levelled at all four corners with a water
level or a water-filled vinyl tube as shown in figure 9.
3Tighten the upper nut.
REFRIGERANT PIPING WORK
For refrigerant piping of outdoor unit, refer to the installation manual
supplied with the outdoor unit.
Before rigging tubes, check which type of refrigerant is used.
■Use a pipe cutter and flare suitable for the used refrigerant.
■To prevent dust, moisture or other foreign matter from infiltrating
the tube, either pinch the end, or cover it with tape.
■Use copper alloy seamless pipes (ISO 1337).
■The outdoor unit is charged with refrigerant.
■To prevent water leakage, execute heat insulation work
completely on both sides of the gas and liquid piping. When
using a heat pump, the temperature of the gas piping can reach
up to approximately 120°C, use insulation which is sufficiently
heat resistant.
■Be sure to use both a spanner and torque wrench together when
connecting or disconnecting pipes to/from the unit.
■Do not mix anything other than the specified refrigerant, such as
air, etc..., inside the refrigerant circuit.
■Use annealed material only for flare connections.
■Refer to Table 1 for the dimensions of flare nut spaces and the
appropriate tightening torque. (Overtightening may damage the
flare and cause leaks.)
Table 1
■When connecting the flare nut, coat the flare inner surface with
ether oil or ester oil and initially tighten 3 or 4 turns by hand
before tightening firmly.
■If the refrigerant gas leaks during the work, ventilate the area. A
toxic gas is emitted by the refrigerant gas being exposed to a fire.
■Make sure there is no refrigerant gas leak. A toxic gas may be
released by the refrigerant gas leaking indoor and being
exposed to flames from an area heater, cooking stove, etc.
■Finally, insulate as shown in the figures below.
Piping insulation procedure
1Nut (field supply)
2Washer for hanger bracket (supplied with the unit)
3Tighten (double nut)
1Water level
2Vinyl tube
All field piping must be provided by a licensed refrigeration
technician and must comply with the relevant local and
national codes.
1Torque wrench
2Spanner
3Piping union
4Flare nut
12
4
3
Pipe
gauge
(mm) Tightening torque
(N•m) Flare dimension A (mm) Flare shape
Ø6.4 14.2~17.2 8.7~9.1
Ø9.5 33.0~39.9 12.8~13.2
Ø12.7 50.0~60.3 16.2~16.6
Ø15.9 63.0~75.4 19.3~19.7
Gas piping Liquid piping
1Piping insulation material (field supply)
2Flare nut connection
3Insulation for fitting (delivered with the unit)
4Piping insulation material (main unit)
5Main unit
6Clamp (field supply)
7Medium 1 sealing pad for gas piping (delivered with the unit)
Medium 2 sealing pad for liquid piping (delivered with the unit)
ATurn seams up
BAttach to base
CTighten the part other than the piping insulation material
DWrap over from the base of the unit to the top of the flare nut
connection
For local insulation, be sure to insulate local piping all
the way into the pipe connections inside the unit.
Exposed piping may cause condensation or may
cause burns when touched.
R=0.4~0.8
45°±2
90°±2
A
A
B
D
C
7
1
2
3
4
5
6
6
A
B
C
1
2
3
4
5
6
6
D
7

Installation and operation manual
5FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
Cautions for brazing
■Be sure to carry out a nitrogen blow when brazing.
Brazing without carrying out nitrogen replacement or releasing
nitrogen into the piping will create large quantities of oxidized
film on the inside of the pipes, adversely affecting valves and
compressors in the refrigerating system and preventing normal
operation.
■When brazing while inserting nitrogen into the piping, nitrogen
must be set to 0.02 MPa with a pressure-reducing valve (=just
enough so that it can be felt on the skin).
DRAIN PIPING WORK
Rig the drain piping as shown in the figure and take measures
against condensation. Improperly rigged piping could lead to leaks
and eventually wet furniture and belongings.
■Install the drain pipes.
-Keep piping as short as possible and slope it downwards at a
gradient of at least 1/100 so that air may not remain trapped
inside the pipe.
-Keep pipe size equal to or greater than that of the connecting
pipe (vinyl pipe of 25 mm nominal diameter and 32 mm outer
diameter).
- Push the supplied drain hose as far as possible over the
drain socket.
- Tighten the metal clamp until the screw head is less than
4 mm from the metal clamp part as indicated in the
illustration.
-Wrap the supplied large sealing pad over the metal clamp
and drain hose to insulate and fix it with clamps.
- Insulate the complete drain piping inside the building (field
supply).
- If the drain hose cannot be sufficiently set on a slope, fit the
hose with drain raising piping (field supply).
■How to perform drain piping (See figure 10)
1Connect the drain hose to the drain raising pipes, and insulate
them.
2Connect the drain hose to the drain outlet on the indoor unit, and
tighten it with the clamp.
■Precautions
-Install the drain raising pipes at a height of less than 625 mm.
- Install the drain raising pipes at a right angle to the indoor
unit and no more than 300 mm from the unit.
-To prevent air bubbles, install the drain hose level or slightly
tilted up (≤75 mm).
Testing of drain piping
After piping work is finished, check if drainage flows smoothly.
■Add approximately 1 l of water gradually through the air
discharge outlet. Check for water leaks.
Method of adding water. See figure 8.
1Refrigerant piping
2Part to be brazed
3Taping
4Hands valve
5Pressure-reducing valve
6Nitrogen
1Hanging bar
1Drain socket (attached to the unit)
2Drain hose (supplied with the unit)
3Metal clamp (supplied with the unit)
4Drain piping (field supply)
5Large sealing pad (supplied with the unit)
12 345
6
6
1-1.5 m 1
1 23 5
≤4 mm
3
5
2
A
A'
A'
A-A' 1
4
A
A'
1Ceiling slab
2Hanger bracket
3Adjustable range
4Drain raising pipe
5Drain hose (supplied with the unit)
6Clamp metal (supplied with the unit)
Installation A (mm)
Rear suction installation 231
When canvas duct is installed 350-530
When air inlet panel is directly installed 231
NOTE The incline of attached drain hose should be
75 mm or less so that the drain socket does
not have to withstand additional force.
To ensure a downward slope of 1:100, install
hanging bars every 1 to 1.5 m.
When unifying multiple drain pipes, install the
pipes as shown in figure 11. Select converging
drain pipes whose gauge is suitable for the
operating capacity of the unit.
1T-joint converging drain pipes
1Water inlet
2Portable pump
3Water inlet cover
4Bucket (adding water through water inlet)
5Drain outlet for maintenance (with rubber drain plug)
6Refrigerant pipes

FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
Installation and operation manual
6
First perform electric wiring work as instructed in "Electric wiring
work" on page 6 and how to set the remote controller as explained in
"Wiring example and how to set the remote controller" on page 7.
When electric wiring work is finished
Check drainage flow during COOL running, explained in "Test operation"
on page 10.
When electric wiring work is not finished
Remove the switch box cover and connect the single-phase power
supply and the remote controller to the terminals. (Refer to "Electric
wiring work" on page 6 for switch box attachment/detachment.)
(Refer to figure 12 and figure 14)
Next, press the inspection/test operation button on the remote
controller. The unit will engage the test operation mode. Press the
operation mode selector button until selecting fan operation
. Then, press the on/off button . The indoor unit fan and drain
pump will start up. Check that the water has drained from the unit.
Press to go back to the first mode.
ELECTRIC WIRING WORK
General instructions
■All field supplied parts and materials and electric works must
conform to local codes.
■Use copper wire only.
■Follow the "Wiring diagram" attached to the unit body to wire the
outdoor unit, indoor units and the remote controller. For details
on hooking up the remote controller, refer to the "Installation
manual of the remote controller".
■All wiring must be performed by an authorized electrician.
■Attach the earth leakage circuit breaker and fuse to the power
supply line.
■A main switch or other means for disconnection, having a
contact separation in all poles, must be incorporated in the fixed
wiring in accordance with relevant local and national legislation.
Note that the operation will restart automatically if the main
power supply is turned off and then turned back on again.
■This system consists of multiple indoor units. Mark each indoor
unit as unit A, unit B..., and be sure the terminal block wiring to
the outdoor unit is matching properly. If wiring and piping
between the outdoor unit and an indoor unit are mismatched,
the system may cause a malfunction.
■Be sure to ground the air conditioner.
■Do not connect the ground wire to:
- gas pipes: might cause explosions or fire if gas leaks.
- telephone ground wires or lightning rods: might cause
abnormally high electric potential in the ground during
lightning storms.
- plumbing pipes: no grounding effect if hard vinyl piping is
used.
■Make sure electrical wires are stripped
equally.
Electrical characteristics
MCA: Min. circuit Amps (A)
MFA: Max. Fuse Amps (A)
Caution for drain socket
Do not remove the drain pipe plug. Water might leak out.
The drain outlet is only used to discharge water if the drain
pump is not used or before maintenance. Gently put in and
out the drain plug. Excessive force may deform the drain
socket of the drain pan.
■Pulling out the plug
Do not wiggle the plug up and down
■Pushing in the plug
Set the plug and push it by using a crosshead screw-
driver
1Switch box cover
2Transmission wiring port
3Power supply wiring port
4Wiring diagram
5Switch box
6Plastic clamp
7Remote controller wiring
8Ter minal board for unit transmission wiring
9Power supply wiring
10 Indoor PC board 1
11 Power supply terminal board
12 Transmission wiring between units
13 Indoor PC board 2
14 Indoor PC board 3 (only for 60~125 units)
1
1
2
1Drain plug
2Crosshead screwdriver
Model Hz Volts Voltage range
Power supply
MCA MFA
50
50/60 220-240/220 ±10%
1.2
16 A
60 1.1
71 1.3
100 1.6
125 2.1
NOTE For details, refer to "Electrical data" in the technical
data book.

Installation and operation manual
7FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
Specifications for field supplied fuses and wire
Allowable length of transmission wiring between indoor and outdoor
units, and between the indoor unit and the remote controller is as
follows:
1. Outdoor unit - indoor unit: max. 1000 m (total wiring length:
2000 m)
2. Indoor unit - remote controller: max 500 m
WIRING EXAMPLE AND HOW TO SET THE
REMOTE CONTROLLER
How to connect wiring
Remove the switch box cover as shown in figure 12, and make the
connections.
PRECAUTIONS
1Observe the notes mentioned below when wiring to the power
supply terminal board.
- Use a round crimp-style terminal for insulation sleeve for
connection to the terminal block for wiring the units. When
none are available, follow the instructions below.
- Do not connect wires of different gauge to the same power
supply terminal. (Looseness in the connection may cause
overheating.)
- When connecting wires of the same gauge, connect them
according to the figure.
Use the specified electric wire. Connect the wire securely to the
terminal. Lock the wire down without applying excessive force to
the terminal. Use torques according to the table below.
- When attaching the control box lid, make sure not to pinch
any wires.
- After all wiring connections are done, fill in any gaps in the
casing wiring holes with putty or insulation material (field
supply) thus to prevent small animals or dirt from entering the
unit from outside and causing short circuits in the control box.
2Keep total current of crossover wiring between indoor units less
than 12 A. Branch the line outside the terminal board of the unit
in accordance with electrical equipment standards, when using
two power wiring of a gauge greater than 2 mm2(Ø1.6).
The branch must be sheathed in order to provide an equal or
greater degree of insulation as power supply wiring itself.
3Do not connect wires of different gauge to the same grounding
terminal. Looseness in the connection may deteriorate the
protection.
4Remote controller cords and wires connecting the units should
be located at least 50 mm away from power supply wiring. Not
following this guideline may result in malfunction due to
electrical noise.
5For the remote controller wiring, refer to the "Installation manual
of the remote controller" supplied with the remote controller.
6Never connect the power supply wiring to the terminal board for
transmission wiring. This mistake could damage the entire
system.
7Use only specified wires and tightly connect wires to the
terminals. Be careful that wires do not place external stress on
the terminals. Keep wiring in neat order so that they do not
obstruct other equipment such as popping open the switch box
cover. Make sure the cover closes tight. Incomplete connections
could result in overheating, and in the worse case, electric shock
or fire.
Power supply wiring
Model Field fuses Wire Size
50~125 16 A H05VV-U3G Local codes
Model Wire Size
50~125 Sheathed wire (2) 0.75-1.25 mm2
NOTE For details, refer to "Wiring example" on page 8.
1Switch box cover
2Transmission wiring port
3Power supply wiring port
4Wiring diagram
5Switch box
1 2 3
1Round crimp-style terminal
2Attach insulation sleeve
3Wiring
Tightening torque (N•m)
Ter minal block for unit transmission and
remote controller 0.9
Ter minal block for power supply 1.2

FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
Installation and operation manual
8
WIRING EXAMPLE
Fit the power supply wiring of each unit with a switch and fuse as
shown in figure 16.
Complete system example (2 systems)
When using 1 remote controller for 1 indoor unit (Normal operation)
(See figure 13)
For group control or use with 2 remote controllers (See figure 15)
PRECAUTIONS
■A single switch can be used to supply power to units on the
same system. However, branch switches and branch circuit
breakers must be selected carefully.
■For a group control remote controller, choose the remote
controller that suits the indoor unit which has the most functions.
■Do not ground the equipment on gas pipes, water pipes,
lightning rods or crossground with telephones. Improper
grounding could result in electric shock.
FIELD SETTING
Field setting must be made on the remote controller in function of the
installation condition.
■Setting can be made by changing the "Mode number", "First
code No." and "Second code No.".
■For setting and operation, refer to the "Field settings" in the
installation manual of the remote controller.
Summary of field settings
1Power supply
2Main switch
3Power supply wiring
4Transmission wiring
5Switch
6Fuse
7Indoor unit
8Remote controller
1Outdoor unit
2Indoor unit
3Remote controller (optional accessories)
4Most downstream indoor unit
5For use with 2 remote controllers
NOTE It is not necessary to designate an indoor unit address
when using group control. The address is
automatically set when the power is activated.
Mode
No.
(Note 1)
First
code
No.
Description of setting
Second code No. (Note 2)
01 02 03 04
10
(20)
0
Filter contamination
- Heavy/Light
= Setting to define
time between 2 filter
cleaning display
indications. (When
contamination is
high, setting can be
changed to half the
time inbetween 2
filter cleaning
display indications.)
Ultra-long-
life filter
Light
±10,000 hrs.
Heavy
±5,000 hrs.
——
Long-life
filter ±2,500 hrs. ±1,250 hrs.
Standard
filter ±200 hrs. ±100 hrs.
2
Thermostat sensor selection
Use both the
unit sensor (or
remote sensor if
installed) AND
the remote
controller
sensor.
(See note 5+6)
Use unit sensor
only (or remote
sensor if
installed).
(See note 5+6)
Use remote
controller
sensor only.
(See note 5+6)
—
3
Setting for display of time
between 2 filter cleaning display
indications
Display Do not display — —
6
Thermostat sensor in group
control
Use unit sensor
only (or remote
sensor if
installed).
(See note 6)
Use both the
unit senor (or
remote sensor if
installed) AND
the remote
controller
sensor. (See
note 4+5+6)
——
12
(22)
0
Output signal X1-X2 of the
optional KRP1B PCB kit
Thermostat-on +
compressor run —Operation Mal-
function
1
ON/OFF input from outside
(T1/T2 input) = Setting when
forced ON/OFF is to be
operated from outside.
Forced OFF ON/OFF
operation ——
3
Fan setting during thermostat
OFF at heating operation LL Set speed OFF
(See note 3) —
4
Differential automatic
changeover 0°C 1°C 2°C
3°C
(See
note 7)
5
Auto-restart after power failure Disabled Enabled — —
9
Fixed cool/heat master Disabled Enabled — —
15
(25) 3
Drain pump operation +
humidifier interlock Equipped Not equipped — —
Note 1 : Setting is carried out in the group mode, however, if the mode number inside parentheses is selected,
indoor units can also be set individually.
Note 2 : Factory settings of the Second code No. are marked in grey backgrounds.
Note 3 : Only use in combination with optional remote sensor or when setting 10-2-03 is used.
Note 4 : If group control is selected and remote controller sensor is to be used, then set 10-6-02 & 10-2-03.
Note 5 : If setting 10-6-02 + 10-2-01 or 10-2-02 or 10-2-03 are set at the same time, then setting 10-2-01,
10-2-02 or 10-2-03 have priority.
Note 6 : If setting 10-6-01 + 10-2-01 or 10-2-02 or 10-2-03 are set at the same time, then setting for group
connection, 10-6-01 has priority and for individual connection, 10-2-01, 10-2-02 or 10-2-03 have
priority.
Note 7 : More settings for Differential automatic change over temperatures are:
Second code No. 05 4°C
06 5°C
07 6°C
08 7°C

Installation and operation manual
9FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
External static pressure settings
Settings for external static pressure can be achieved in 2 ways:
Using the airflow automatic adjustment function
Airflow automatic adjustment is the volume of blow-off air that
has been automatically adjusted to the rated quantity.
1Make sure the test run is done with a dry coil.
If the coil is not dry, run the unit for 2 hours with fan only to dry
the coil.
2Check if the power supply wiring to the air conditioning unit is
completed along with the duct installation.
If a closing damper is installed in the air conditioning unit, make
sure that it is open.
Also check if the air filter is properly attached into the air
passage on the air suction side of the air conditioning unit.
3If there is more than one air inlet and outlet, adjust the dampers
so that the airflow rate of each air inlet and outlet is conform with
the designed airflow rate.
Make sure the air conditioning unit is in fan operation mode.
Press and set the airflow adjustment button on the remote
controller to change the airflow rate to H or L.
4Setting of the airflow automatic adjustment settings.
When the air conditioning unit is running in fan operation mode
perform the next steps:
- stop the air conditioning unit,
- go to field setting mode,
- select mode No. 21 (or 11 in case of group setting),
- set the first code No. to “7”,
- set the second code No. to “03”.
Return to normal operating mode after setting these settings
and press the ON/OFF operation button.The operation lamp will
light up and the air conditioning unit will start the fan operation
for airflow automatic adjustment.
After 1 to 8 minutes, the air conditioning unit stops operating
automatically when the fan operation for airflow automatic
adjustment has been carried out, the operation lamp will be off.
5When the air conditioning unit has stopped, check on an indoor
unit if the second code No. of mode No. 21 is set to “02”.
If the air conditioning unit does not stop operating or the second
code No. is not “02”, repeat step 4.
If the outdoor unit is not turned on, the display on the remote
controller will show “U4” or “UH” (refer to "Test operation" on
page 10). However, you can continue setting this function
because these messages are only applicable to outdoor units.
After setting this function, be sure to turn on the outdoor unit
before performing the test operation on the outdoor unit.
If any other error display occurs on the display of the remote
controller, refer to "Test operation" on page 10 and the operation
manual of the outdoor unit. Check the defective point.
Using the remote controller
Check on an indoor unit if the second code of mode No. 21 is set to
“01” (= factory setting). Change the second code according to the
external static pressure of the duct to be connected as shown in
table 2.
Table 2
Control by 2 Remote Controllers (Controlling 1 indoor
unit by 2 remote controllers)
When using 2 remote controllers, one must be set to "MAIN" and the
other to "SUB".
MAIN/SUB CHANGEOVER
■Insert a wedge-head screwdriver into
the recess between the upper and
lower part of the remote controller and,
working from the 2 positions, pry off
the upper part.
(The remote controller PC board is
attached to the upper part of the
remote controller.)
■Turn the main/sub changeover switch on one of the two remote
controller PC boards to "S". (See figure 17)
(Leave the switch of the other remote controller set to "M".)
Do not adjust the dampers during fan operation for
airflow automatic adjustment.
Mode
No. First code No. Second code No. Setting content
11 (21) 7
01 Airflow adjustment is OFF
02 Completion of airflow adjustment
03 Start of airflow adjustment
■If there is no change after airflow adjustment in the
ventilation paths, be sure to perform setting the
automatic airflow adjustment again.
■Contact your dealer if there is no change after
performing airflow adjustment in the ventilation paths,
after performing the test operation of the outdoor unit
or when the air conditioning unit is moved to another
location.
■If booster fans, an outdoor air processing unit or HRV
via duct are used, do not use automatic airflow
adjustment control with a remote controller.
■If the ventilation paths have been changed, perform
the setting of the airflow automatic adjustment again
as described above from step 3 onwards.
NOTE The second code No. is set to “03” by default.
Mode No. First
code No. Second code No.
External static pressure (Pa)
FMDQ
50 60 71 100 125
13 (23) 6
03 30 30 40 40 50
04 35 40 45 50 55
05 40 50 50 60 60
06 45 60 60 70 70
07 50 70 70 80 80
08 60 80 80 90 90
09 70 90 90 100 100
10 80 100 100 110 110
11 90 — — 120 120
12 100 — — — —
1Remote controller PC board
2Factory setting
3Only one remote controller needs to be changed

FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
Installation and operation manual
10
Computerised control (forced off and on/off operation)
1Wire specifications and how to perform wiring
- Connect input from outside to terminals T1 and T2 of the
terminal board (remote controller to transmission wiring).
2Actuation
- The following table explains "forced off" and "on/off
operations" in response to input A.
3How to select forced off and on/off operation
-Turn the power on and then use the remote controller to
select operation.
- Set the remote controller to the field set mode. For details,
refer to the chapter "How to set in the field", in the remote
controller manual.
-When in the field set mode, select mode No. 12, then set the
first code No. to "1". Then set second code (position) No. to
"01" for forced off and to "02" for on/off operation. (forced off
at factory set.) (See figure 18)
Centralized control
For centralized control, it is necessary to designate the group No. For
details, refer to the manual of each optional controller for centralized
control.
INSTALLATION OF THE DECORATION PANEL
Refer to the installation manual attached to the decoration panel.
After installing the decoration panel, ensure that there is no space
between the unit body and decoration panel.
TEST OPERATION
Refer to the installation manual of the outdoor unit.
The operation lamp of the remote controller will flash when an error
occurs. Check the error code on the liquid crystal display to identify
the trouble.
If any of the items in following table are displayed on the remote
controller, there may be a problem with the wiring or power, so check
the wiring again.
MAINTENANCE
How to clean the air filter
Clean the air filter when the display shows " " (TIME TO CLEAN
AIR FILTER).
Increase the frequency of cleaning if the unit is installed in a room
where the air is extremely contaminated.
If the dirt becomes impossible to clean, change the air filter. (Air filter
for exchange is optional.)
1Open the suction grille. (Only for bottom suction.)
Slide both knobs simultaneously as shown and then pull them
downward.
Wire specification Sheathed vinyl cord or cable (2 wire)
Gauge 0.75-1.25 mm2
Length Max. 100 m
External terminal Contact that can ensure the minimum
applicable load of 15 V DC, 10 mA
Forced off on/off operation
Input "on" stops operation input off ➜on: turns on the unit
(impossible by remote controllers)
Input "off" enables control input on ➜off: turns off the unit by
remote controller
1Second code No.
2Mode No.
3First code No.
4Field set mode
F2 T1 T2
FORCED
OFF
Input A
Error code Meaning
A8 Error in power supply to indoor unit
C1 Transmission error between fan driver PCB and controller
PCB of the indoor unit
C6 Improper combination of fan driver PCB of the indoor unit or
setting failure in control PCB type
U3 Test operation of the indoor unit has not been finished
Error code Meaning
There is a short circuit at the forced off terminals (T1, T2)
U4 or UH - The power on the outdoor unit is off - The outdoor unit has not been wired for power supply
- Incorrect transmission of forced off wiring
no display
- The power on the indoor unit is off
- The indoor unit has not been wired for power supply
- Incorrect transmission wiring, forced off wiring or remote
controller wiring
Caution
■Only a qualified service person is allowed to perform
maintenance.
■Before obtaining access to terminal devices, all power
supply circuits must be interrupted.
■Do not use water or air of 50°C or higher for cleaning
air filters and outside panels.
■When cleaning the heat exchanger, be sure to remove
the switchbox, fan motor, auxiliary electric heater and
drain pump. Water or detergent may deteriorate the
insulation of electronic components and result in
burn-out of these components.
■If the main power supply is turned off during
operation, operation will restart automatically after the
power turns back on again.

Installation and operation manual
11 FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
If chains are present, unhook the chains.
2Remove the air filters.
Remove the air filters by pulling their cloth upward (rear suction)
or backward (bottom suction).
3Clean the air filter.
Use vacuum cleaner (A) or wash the air filter with water (B).
When the air filter is very dirty, use soft brush and neutral
detergent.
Remove water and dry in the shade.
4Fix the air filter.
Align the two hanger brackets and push the two clips in their
place (pull the cloth if necessary).
Confirm that four hangers are fixed.
5Shut the air inlet grille. (Only for bottom suction.)
Refer to item no. 1.
6After turning on the power, press FILTER SIGN RESET button.
The "TIME TO CLEAN AIR FILTER" display is turned off.
How to clean air outlet and outside panels
■Clean with soft cloth.
■When it is difficult to remove stains, use water of neutral
detergent.
■Clean the air inlet grille when it is shut.
Start up after a long stop
Confirm the following:
■Check that the air inlet and outlet are not blocked. Remove any
obstacle.
■Check if the earth is connected.
Clean the air filter and outside panels.
■After cleaning the air filter, make sure to attach it.
Turn on the main power supply switch.
■The control panel display lights when the power is turned on.
■To protect the unit, turn on the main power switch at least
6 hours before operation.
What to do when stopping the system for a long period
Turn on FAN OPERATION for half a day and dry the unit.
■Refer to the operation manual of the outdoor unit.
Cut off the power supply.
■When the main power switch is turned on, some wattage is
being consumed even if the system is not operating.
■The remote controller display is turned off when the main power
switch is turned off.
DISPOSAL REQUIREMENTS
Dismantling of the unit, treatment of the refrigerant, of oil and of other
parts must be done in accordance with relevant local and national
legislation.
(A) Using a vacuum cleaner (B) Washing with water
rear suction
bottom suction
rear suction
bottom suction
NOTE Do not use gasoline, benzene, thinner, polishing
powder, liquid insecticide. It may cause discolouring or
warping.
Do not let the indoor unit get wet. It may cause an
electric shock or a fire.

FMDQ50~125B7VEB
Air conditioning system
4PW48241-1
Installation and operation manual
12
WIRING DIAGRAM
A1P........................ PRINTED CIRCUIT BOARD
A2P........................ PRINTED CIRCUIT BOARD (FAN)
A3P........................ PRINTED CIRCUIT BOARD (CAPACITOR)
(only for 60~125 units)
C1,C2,C3............... CAPACITOR
F1U........................ FUSE (T, 3.15 A, 250 V)
F2U........................ FUSE (T, 5 A, 250 V)
F3U,F4U ................ FUSE (T, 6.3 A, 250 V)
HAP ....................... LIGHT EMITTING DIODE
(SERVICE MONITOR - GREEN)
KPR,K1R ............... MAGNETIC RELAY
L1R........................ REACTOR
M1F ....................... MOTOR (FAN)
M1P ....................... MOTOR (DRAIN PUMP)
PS.......................... SWITCHING POWER SUPPLY
Q1DI ...................... EARTH LEAK DETECTOR
R1.......................... RESISTOR (CURRENT LIMITING)
R2.......................... CURRENT SENSING DEVICE
R3,R4 .................... RESISTOR (ELECTRIC DISCHARGE)
R1T........................ THERMISTOR (SUCTION AIR)
R2T........................ THERMISTOR (LIQUID)
R3T ........................THERMISTOR (GAS)
R5T ........................THERMISTOR NTC (CURRENT LIMITING)
S1L.........................FLOAT SWITCH
V1R........................DIODE BRIDGE
V2R........................POWER MODULE
X1M........................TERMINAL STRIP (POWER SUPPLY)
X2M........................TERMINAL STRIP (CONTROL)
Y1E ........................ELECTRONIC EXPANSION VALVE
Z1C,Z2C ................NOISE FILTER (FERRITE CORE)
Z1F.........................NOISE FILTER
CONNECTOR OPTIONAL ACCESSORY
X28A ......................CONNECTOR (POWER SUPPLY FOR WIRING)
X33A ......................CONNECTOR (FOR WIRING)
X35A ......................CONNECTOR (ADAPTOR)
X38A ......................CONNECTOR (FOR WIRING)
WIRED REMOTE CONTROLLER
R1T ........................THERMISTOR (AIR)
SS1 ........................SELECTOR SWITCH (MAIN/SUB)
: FIELD WIRING BLK : BLACK ORG : ORANGE
: CONNECTOR BLU : BLUE PNK : PINK
: WIRE CLAMP BRN : BROWN RED : RED
: PROTECTIVE EARTH (SCREW) GRN : GREEN WHT : WHITE
L:LIVE GRY : GREY YLW : YELLOW
N:NEUTRAL
WIRED REMOTE CONTROLLER :
(OPTIONAL ACCESSORY) :
SWITCH BOX (INDOOR) :
TRANSMISSION WIRING :
CENTRAL REMOTE CONTROLLER :
INPUT FROM OUTSIDE :
NOTE 1. USE COPPER CONDUCTORS ONLY.
2. WHEN USING THE CENTRAL REMOTE CONTROLLER, SEE MANUAL FOR CONNECTION TO THE UNIT.
3. WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE, FORCED “OFF” OR “ON/OFF” CONTROL OPERATION CAN
BE SELECTED BY THE REMOTE CONTROLLER. SEE INSTALLATION MANUAL FOR MORE DETAILS.

NOTESNOTES

L N
811 6
13
9
6
5
10
14
7 12
L N LN
IN/D OUT/D
F1F2F1F2
Control box
L NL N
P 1 P 2
P 1 P 2 P 1 P 2 P 1 P 2 P 1 P 2
F 1 F 2 T 1 T 2 P 1 P 2 F 1 F 2 T 1 T 2 P 1 P 2 F 1 F 2 T 1 T 2 P 1 P 2 F 1 F 2 T 1 T 2
3
1
1
4
2
L N
IN/D OUT/D
F1F2F1F2
Control box
P 1 P 2
P 1 P 2
F 1 F 2 T 1 T 2 P 1 P 2 F 1 F 2 T 1 T 2 P 1 P 2 F 1 F 2 T 1 T 2 P 1 P 2 F 1 F 2 T 1 T 2
P 1 P 2 P 1 P 2
2
5
3
SETTING
21
3
4
S
M
S
S
M
2
3
1
1
23
4
5
L N L N L N L N
L N L N L N L N 4
16 17 18
12
14 15
13
1
2
5
6
3
4
7
8
12
13
14
15
16
17 18

4PW48241-1
Copyright © Daikin