Daikin D2CNL024A1AA Installation manuals
Installation Manual
Wall-mounted condensing boiler
D2CNL024A1AA
Installation Manual
Wall-mounted condensing boiler
English
Directivelor, cu amendamentele respective.
<A>
<B>
<C>
IMQ (NB0051)
51DL5003, 51DL5004
TCF 0216A
Direktive z vsemi spremembami.
Direktiivid koos muudatustega.
Директиви, с техните изменения.
Direktyvose su papildymais.
Direktīvās un to papildinājumos.
Smernice, v platnom znení.
18192021222324
Direktiver, med senere ændringer.
Direktiv, med företagna ändringar.
Direktiver, med foretatte endringer.
10111213141516
Directives, as amended.
Direktiven, gemäß Änderung.
deklaruje na własną i wyłączną odpowiedzialność, że urządzenia, których ta deklaracja dotyczy:
declară pe proprie răspundere că echipamentele la care se referă această declaraţie:
z vso odgovornostjo izjavlja, da je oprema naprav, na katero se izjava nanaša:
kinnitab oma täielikul vastutusel, et käesoleva deklaratsiooni alla kuuluv varustus:
декларира на своя отговорност, че оборудването, за коeто се отнася тази декларация:
visiška savo atsakomybe skelbia, kad įranga, kuriai taikoma ši deklaracija:
ar pilnu atbildību apliecina, ka tālāk aprakstītās iekārtas, uz kurām attiecas šī deklarācija:
vyhlasuje na vlastnú zodpovednosť, že zariadenie, na ktoré sa vzťahuje toto vyhlásenie:
tamamen kendi sorumluluǧunda olmak üzere bu bildirinin ilgili olduǧu donanımının aşaǧıdaki gibi olduǧunu beyan eder:
17
18
19
20
21
22
23
24
25
megfelelnek az alábbi szabvány(ok)nak vagy egyéb irányadó dokumentum(ok)nak, ha azokat előírás szerint használják:
spełniają wymogi następujących norm i innych dokumentów normalizacyjnych, pod warunkiem że używane są zgodnie z naszymi instrukcjami:
sunt în conformitate cu următorul (următoarele) standard(e) sau alt(e) document(e) normativ(e), cu condiţia ca acestea să fie utilizate în conformitate cu
instrucţiunile noastre:
skladni z naslednjimi standardi in drugimi normativi, pod pogojem, da se uporabljajo v skladu z našimi navodili:
on vastavuses järgmis(t)e standardi(te)ga või teiste normatiivsete dokumentidega, kui neid kasutatakse vastavalt meie juhenditele:
съответстват на следните стандарти или други нормативни документи, при условие, че се използват съгласно нашите инструкции:
atitinka žemiau nurodytus standartus ir (arba) kitus norminius dokumentus su sąlyga, kad yra naudojami pagal mūsų nurodymus:
tad, ja lietoti atbilstoši ražotāja norādījumiem, atbilst sekojošiem standartiem un citiem normatīviem dokumentiem:
sú v zhode s nasledovnou(ými) normou(ami) alebo iným(i) normatívnym(i) dokumentom(ami), za predpokladu, že sa používajú v súlade snašim
návodom:
161718192021222324
ürünün, talimatlarımıza göre kullanılması koşuluyla aşağıdaki standartlar ve norm belirten belgelerle uyumludur:
25
Directives, telles que modifiées.
010203040506070809
***
Değiştirilmiş halleriyle Yönetmelikler.
25
Direktiivejä, sellaisina kuin ne ovat muutettuina.
v platném znění.
Smjernice, kako je izmijenjeno.
irányelv(ek) és módosításaik rendelkezéseit.
z późniejszymi poprawkami.
17
Richtlijnen, zoals geamendeerd.
Directivas, según lo enmendado.
Direttive, come da modifica.
Οδηγιών, όπως έχουν τροποποιηθεί.
Directivas, conforme alteração em.
*
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> vsúlade
s osvedčením<C>.
<A>’da belirtildiği gibi ve <C>Sertifikasına göre <B>
tarafından olumlu olarak değerlendirildiği gibi.
Директив со всеми поправками.
21Забележка*
22Pastaba*
23Piezīmes*
24Poznámka*
25Not*
Daikin Europe N.V. je pooblaščen za sestavo datoteke s tehnično mapo.
Daikin Europe N.V. on volitatud koostama tehnilist dokumentatsiooni.
Daikin Europe N.V. е оторизирана да състави Акта за техническа конструкция.
Daikin Europe N.V. yra įgaliota sudaryti šį techninės konstrukcijos failą.
Daikin Europe N.V. ir autorizēts sastādīt tehnisko dokumentāciju.
Spoločnosť Daikin Europe N.V. je oprávnená vytvoriť súbor technickej konštrukcie.
Daikin Europe N.V. Teknik Yapı Dosyasını derlemeye yetkilidir.
19**
20**
21**
22**
23**
24**
25**
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>
vskladu scertifikatom<C>.
nagu on näidatud dokumendis <A> ja heaks kiidetud
<B> järgi vastavalt sertifikaadile<C>.
16Megjegyzés*
17Uwaga*
18Notă*
19Opomba*
20Märkus*
Low Voltage 2014/35/EU
Boiler Efficiency 92/42/EEC
Gas Appliance Regulation 2016/426/EU
заявляет, исключительно под свою ответственность, что оборудование, к которому относится настоящее заявление:
erklærer under eneansvarlig, at udstyret, som er omfattet af denne erklæring:
deklarerar i egenskap av huvudansvarig, att utrustningen som berörs av denna deklaration innebär att:
erklærer et fullstendig ansvar for at det utstyr som berøres av denne deklarasjon innebærer at:
ilmoittaa yksinomaan omalla vastuullaan, että tämän ilmoituksen tarkoittamat laitteet:
prohlašuje ve své plné odpovědnosti, že zařízení, k němuž se toto prohlášení vztahuje:
izjavljuje pod isključivo vlastitom odgovornošću da oprema na koju se ova izjava odnosi:
teljes felelőssége tudatában kijelenti, hogy a berendezések, melyekre e nyilatkozat vonatkozik:
09
10
11
12
13
14
15
16
estão em conformidade com a(s) seguinte(s) norma(s) ou outro(s) documento(s) normativo(s), desde que estes sejam utilizados de
acordo com as nossas instruções:
соответствуют следующим стандартам или другим нормативным документам, при условии их использования согласно нашим инструкциям:
overholder følgende standard(er) eller andet/andre retningsgivende dokument(er), forudsat at disse anvendes i henhold til vore instrukser:
respektive utrustning är utförd i överensstämmelse med och följer följande standard(er) eller andra normgivande dokument, under förutsättning att
användning sker i överensstämmelse med våra instruktioner:
respektive utstyr er i overensstemmelse med følgende standard(er) eller andre normgivende dokument(er), under forutssetning av at disse brukes i
henhold til våre instrukser:
vastaavat seuraavien standardien ja muiden ohjeellisten dokumenttien vaatimuksia edellyttäen, että niitä käytetään ohjeidemme mukaisesti:
za předpokladu, že jsou využívány v souladu s našimi pokyny, odpovídají následujícím normám nebo normativním dokumentům:
08091011121314
u skladu sa slijedećim standardom(ima) ili drugim normativnim dokumentom(ima), uz uvjet da se oni koriste u skladu s našim uputama:
15
ob upoštevanju določb:
vastavalt nõuetele:
следвайки клаузите на:
laikantis nuostatų, pateikiamų:
ievērojot prasības, kas noteiktas:
19202122232425
održiavajúc ustanovenia:
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> vsouladu sosvědčením<C>.
kako je izloženo u <A> i pozitivno ocijenjeno odstrane
Electromagnetic Compatibility 2014/30/EU
11Information*
12Merk*
13Huom*
bunun koşullarına uygun olarak:
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
<B> prema Certifikatu<C>.
14Poznámka*
15Napomena*
de <B> de acordo com o Certificado<C>.
как указано в <A> и в соответствии сположительным
решением <B> согласно Свидетельству<C>.
som anført i <A> og positivt vurderet af <B> ihenhold til
Certifikat<C>.
Daikin Europe N.V. on valtuutettu laatimaan Teknisen asiakirjan.
Společnost Daikin Europe N.V. má oprávnění ke kompilaci souboru technické konstrukce.
Daikin Europe N.V. je ovlašten za izradu Datoteke o tehničkoj konstrukciji.
A Daikin Europe N.V. jogosult a műszaki konstrukciós dokumentáció összeállítására.
Daikin Europe N.V. ma upoważnienie do zbierania i opracowywania dokumentacji konstrukcyjnej.
Daikin Europe N.V. este autorizat să compileze Dosarul tehnic de construcţie.
13**
14**
15**
16**
17**
18**
Hiromitsu Iwasaki
Director
Ostend, 1st of October 2020
Η Daikin Europe N.V. είναι εξουσιοδοτημένη να συντάξει τον Τεχνικό φάκελο κατασκευής.
A Daikin Europe N.V. está autorizada a compilar a documentação técnica de fabrico.
Компания Daikin Europe N.V. уполномочена составить Комплект технической документации.
Daikin Europe N.V. er autoriseret til at udarbejde de tekniske konstruktionsdata.
Daikin Europe N.V. är bemyndigade att sammanställa den tekniska konstruktionsfilen.
Daikin Europe N.V. har tillatelse til å kompilere den Tekniske konstruksjonsfilen.
07**
08**
09**
10**
11**
12**
declares under its sole responsibility that the equipment to which this declaration relates:
erklärt auf seine alleinige Verantwortung daß die Ausrüstung für die diese Erklärung bestimmt ist:
CE - DECLARATION-OF-CONFORMITY CE - DECLARACION-DE-CONFORMIDAD CE - DECLARAÇÃO-DE-CONFORMIDADE CE - ERKLÆRING OM-SAMSVAR CE - IZJAVA-O-USKLAĐENOSTI CE - IZJAVA O SKLADNOSTI CE - ATITIKTIES-DEKLARACIJA
CE - KONFORMITÄTSERKLÄRUNG CE - DICHIARAZIONE-DI-CONFORMITA CE - ЗАЯВЛЕНИЕ-О-СООТВЕТСТВИИ CE - ILMOITUS-YHDENMUKAISUUDESTA CE - MEGFELELŐSÉGI-NYILATKOZAT CE - VASTAVUSDEKLARATSIOON CE - ATBILSTĪBAS-DEKLARĀCIJA
CE - DECLARATION-DE-CONFORMITE CE - ΔHΛΩΣΗ ΣΥΜΜΟΡΦΩΣΗΣ CE - OVERENSSTEMMELSESERKLÆRING CE - PROHLÁŠENÍ-O-SHODĚ CE - DEKLARACJA-ZGODNOŚCI CE - ДЕКЛАРАЦИЯ-ЗА-СЪОТВЕТСТВИЕ CE - VYHLÁSENIE-ZHODY
CE - CONFORMITEITSVERKLARING CE - FÖRSÄKRAN-OM-ÖVERENSTÄMMELSE CE - DECLARAŢIE-DE-CONFORMITATE CE - UYGUNLUK-BEYANI
déclare sous sa seule responsabilité que l'équipement visé par la présente déclaration:
Daikin Europe N.V.
01
02
03
06Nota*
07Σημείωση*
08Nota*
09Примечание*
10Bemærk*
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:
101112131415161718
verklaart hierbij op eigen exclusieve verantwoordelijkheid dat de apparatuur waarop deze verklaring betrekking heeft:
declara bajo su única responsabilidad que el equipo al que hace referencia la declaración:
dichiara sotto la propria responsabilità che gli apparecchi a cui è riferita questa dichiarazione:
δηλώνει με αποκλειστική της ευθύνη ότι ο εξοπλισμός στον οποίο αναφέρεται η παρούσα δήλωση:
declara sob sua exclusiva responsabilidade que os equipamentos a que esta declaração se refere:
07
08
D2CNL024,
04
05
06
are in conformity with the following standard(s) or other normative document(s), provided that these are used in accordance with our instructions:
der/den folgenden Norm(en) oder einem anderen Normdokument oder -dokumenten entspricht/entsprechen, unter der Voraussetzung, daß sie gemäß
unseren Anweisungen eingesetzt werden:
sont conformes à la/aux norme(s) ou autre(s) document(s) normatif(s), pour autant qu'ils soient utilisés conformément à nos instructions:
conform de volgende norm(en) of één of meer andere bindende documenten zijn, op voorwaarde dat ze worden gebruikt overeenkomstig onze
instructies:
están en conformidad con la(s) siguiente(s) norma(s) u otro(s) documento(s) normativo(s), siempre que sean utilizados de acuerdo con nuestras
instrucciones:
sono conformi al(i) seguente(i) standard(s) o altro(i) documento(i) a carattere normativo, a patto che vengano usati in conformità alle nostre istruzioni:
είναι σύμφωνα με το(α) ακόλουθο(α) πρότυπο(α) ή άλλο έγγραφο(α) κανονισμών, υπό την προϋπόθεση ότι χρησιμοποιούνται
01020304050607
σύμφωνα με τις οδηγίες μας:
following the provisions of:
gemäß den Vorschriften der:
conformément aux stipulations des:
EN15502-1, EN60335-2-102,
overeenkomstig de bepalingen van:
010203040506070809
în urma prevederilor:
as set out in <A> and judged positively by <B>
according to the Certificate<C>.
wie in <A> aufgeführt und von <B> positiv
beurteilt gemäß Zertifikat<C>.
tel que défini dans <A> et évalué positivement par <B>
conformément au Certificat<C>.
zoals vermeld in <A> en positief beoordeeld door <B>
siguiendo las disposiciones de:
secondo le prescrizioni per:
με τήρηση των διατάξεων των:
de acordo com o previsto em:
в соответствии с положениями:
01Note*
02Hinweis*
03Remarque*
04Bemerk*
overeenkomstig Certificaat<C>.
como se establece en <A> y es valorado
positivamente por <B> de acuerdo con el
05Nota*
Certificado<C>.
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.
01**
02**
03**
04**
05**
06**
2P475131-5H
Table of contents
Table of contents
1 Introduction 3
1.1 About the documentation .......................................................... 3
1.1.1 Meaning of warnings and symbols.............................. 3
1.2 Identification label...................................................................... 3
1.3 Symbols on the package ........................................................... 4
2 Safety instructions 4
3 About the unit 4
3.1 Safety systems .......................................................................... 4
3.2 Dimensions................................................................................ 5
3.3 Components .............................................................................. 6
3.4 Technical specifications ............................................................ 7
4 Installation 8
4.1 To open the unit ........................................................................ 8
4.2 Installation site requirements..................................................... 9
Minimum installation clearances ................................. 9
4.3 To unpack the unit..................................................................... 9
4.4 To mount the unit ...................................................................... 10
4.5 Central heating system requirements........................................ 10
4.6 Underfloor heating requirements............................................... 11
4.7 Residual pump lift graph............................................................ 11
4.8 Connections .............................................................................. 11
4.8.1 Piping connections...................................................... 11
4.8.2 Guidelines when connecting the gas piping................ 11
4.8.3 Guidelines when connecting the water piping............. 12
4.8.4 Guidelines when connecting the electrical wiring ....... 12
4.8.5 Guidelines when connecting options to the boiler....... 13
4.8.6 Wiring diagram............................................................ 14
4.8.7 Guidelines when connecting the condensate piping... 15
4.8.8 Guidelines for condensate piping termination............. 15
4.8.9 Guidelines when connecting the boiler to the flue gas
system......................................................................... 16
4.8.10 Applicable flue systems .............................................. 16
4.9 To fill the system with water ...................................................... 19
5 Commissioning 20
5.1 To fill the condensate trap ......................................................... 20
5.2 To check for gas leakage .......................................................... 20
5.3 To commission the unit ............................................................. 20
5.3.1 To commission the central heating ............................. 21
5.3.2 To measure the flue emissions to make gas-air ratio
adjustment .................................................................. 21
5.3.3 To commission the central heating capacity setting ... 21
5.3.4 To commission the domestic hot water....................... 21
6 Hand-over to the user 21
Disposal
Old units must be appropriately disposed of, in accordance with local
and national regulations. The components are easy to separate and
the plastics are marked. This allows the various components to be
sorted for appropriate recycling or disposal.
▪ Units are marked with the following symbol:
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.
1 Introduction
1.1 About the documentation
The instructions contained in this document are intended to guide
you through the installation of the unit. Damage caused by nonobservance of these instructions are not under the responsibility of
Daikin.
▪ The original documentation is written in English. All other
languages are translations.
▪ The precautions described in this document are written for
installers and they cover very important topics. Follow them
carefully.
▪ Please read the operation manual and installation manual prior to
use and keep them for future reference.
1.1.1 Meaning of warnings and symbols
DANGER
Indicates a situation that results in death or serious injury.
WARNING
Indicates a situation that could result in death or serious
injury.
CAUTION
Indicates a situation that could result in minor or moderate
injury.
NOTICE
Indicates a situation that could result in equipment or
property damage.
INFORMATION
Indicates useful tips or additional information.
D2CNL024A1AA
Wall-mounted condensing boiler
3P469346-12P – 2020.07
1.2 Identification label
You can find data about the unit on its identification label, which is
located at the bottom of the right cover of the unit.
Installation Manual
3
2 Safety instructions
Pn (80/60)
Pn (50/30)
Qn
Qnw
D (ΔT=30 K)
PMS
PMW
Nox
kW
kW
kW
kW
l/min
bar
MPa
bar
MPa
/ /
XXXX-XX
PIN:
a
b c d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
v
u
MAX. 2
MAX. 3
▪ Work on electrical equipment must only be carried out by a
qualified electrician.
▪ The system must be commissioned by a qualified competent
person.
WARNING
A qualified person shall explain the operating principles
and the use of the unit to the user. The user is not allowed
to perform any modifications, maintenance or repairs on
the unit, unless otherwise stated, or have the such
performed by unauthorised third parties. Otherwise, the
unit warranty becomes void.
DANGER
Isolate the boiler from the power mains before working on
it.
WARNING
Unit installation, commissioning, repair, configuration and
service must be performed by qualified competent persons
in accordance with local standards and regulations.
Incorrect installation of this unit may harm the user and his/
her surroundings. The manufacturer is not responsible for
any malfunctions and/or damage that may occur this way.
a Product number
b Electrical supply
c Maximum electrical power consumption
d Degree of protection
e Nominal heat output range @ 80/60
f Nominal heat output range @ 50/30
g Nominal heat input range
h Nominal heat input range (Domestic hot water)
i Hot water amount @ DT=30
j NOx class
k Maximum central heating pressure (bar)
l Maximum central heating pressure (MPa)
m Maximum domestic hot water pressure (bar)
n Maximum domestic hot water pressure (MPa)
o Country of destination(s)
p Serial number
q Appliance type
r Efficiency class
s Gas category
t Gas type and supply pressure
u PIN number
v Product type
1.3 Symbols on the package
This is a fragile piece of equipment: Please provide a dry
storage space for the unit.
This is a fragile piece of equipment: Please be very careful
not to drop.
Store the unit in a flat position as indicated on the box.
No more than 5 boxes should be stacked on top of each
other.
When stacking 6 boxes on one pallet, no more than 2
pallets should be stacked on top of each other.
DANGER
Flammable fluids and materials must be stored at least
1metre away from the boiler.
WARNING
To ensure faultless operation, long term availability of all
functions and long working life of the boiler only use
original spares.
3 About the unit
This Daikin unit is a wall-mounted gas-fired condensing boiler that
can supply heat to central heating systems, as well as supply
domestic hot water. Depending on settings, it is possible to use the
unit solely for hot water or solely for central heating. Hot water
supply type can be instantaneous or by means of a hot water
storage tank. Heating only boilers do not supply domestic hot
water. The type of the boiler can be recognized from the model
name written on the identification label. See table below:
Model Type Domestic hot water
supply
D2CNL024A1AA D2CNL024 Instantaneous Internal
A control unit, which contains a user interface, controls the ignition,
safety systems, and other actuators. User interaction is provided via
that user interface, which is composed of an LCD screen and
buttons which is located on the front cover of the unit.
Filling loop
When stacking 4 boxes on one pallet, no more than 3
pallets should be stacked on top of each other.
2 Safety instructions
These instructions are exclusively designed for qualified competent
persons.
▪ Work on gas units must only be carried out by a qualified gas
fitter.
Installation Manual
4
3.1 Safety systems
The unit is equipped with several safety systems, to protect it against
dangerous conditions:
Flue safety system: This is controlled by the flue gas temperature
sensor located on the flue outlet part of the boiler. It is activated
when the flue gas temperature exceeds safety limits.
Overheating safety system: This is controlled by the safety limiting
thermostat. It is located on the main heat exchanger and stops the
unit when the flow temperature reaches 100°C, to avoid boiling of
the water, which may damage the unit.
D2CNL024A1AA
Wall-mounted condensing boiler
3P469346-12P – 2020.07
3 About the unit
200
DN100
127
200
255.5400
590
613.7
63 65 51 87 64.6
91.3
101.4
161.7
12.2
Pump anti-blockage system: The pump operates for 30seconds
every 24hours during long periods of inactivity to ensure it does not
get stuck. To enable this function, the unit must be connected to the
power supply.
Three-way valve anti-blockage system: In cases where the unit is
non-operational for prolonged periods of time, the three-way valve
switches its position every 24hours to prevent it from getting stuck.
To enable this function, the unit must be connected to the power
supply.
Safety against dry operation: This is controlled by the pressure
sensor. It turns off the unit and ensures system safety when the
water pressure of the heating installation falls below 0.6bar for any
reason.
Flame ionisation control: This is controlled by the ionisation
electrode. It checks whether a flame forms on the burner surface or
not. If there is no flame, it turns the unit off to stop gas flow and
warns the user.
High pressure protection:
▪ Pressure sensor: When heating system pressure reaches
2.8 bar, control unit stops heating operation thus preventing the
pressure from rising.
▪ Safety valve: When the water pressure of the heating circuit
exceeds 3 bar, some water is automatically drained from the
safety valve to keep the pressure below 3bar thus protecting the
boiler and heating installation.
Automatic air vents: There are two air vents; one on the pump,
other on the heat exchanger. They help discharging the air inside the
installation and heating circuit to avoid air traps and consequent
operational problems.
Frost protection safety system: This function protects the unit and
heating installation from frost damages. It is controlled by the flow
temperature sensor, which is located at the outlet of the main heat
exchanger. This protection activates the boiler pump when the water
temperature drops below 15°C and it activates the burner when the
water temperature drops below 5°C. The unit keeps running until the
temperature reaches 15°C. To enable this function, the unit must be
connected to the power supply and its main gas valve must be open.
Any damage caused by frost is not covered by the warranty.
Low voltage safety system: This is controlled by the control unit.
When the supply voltage drops below 170 Volt, the boiler goes to
error mode. It is a blocking error and the boiler will operate without
reset after supply voltage is above 180 Volt. It is recommended to
use a voltage regulator of suitable power and type in locations with
voltage fluctuations below this limit for faultless operation.
High electric supply current protection system: A fuse on the
control unit protects equipment and wiring against the damaging
effects of electrical faults which is caused by excess currents, and
disables equipment which is faulty. The fuse "blows" (opens) when
the current carried exceeds the rated value for an excessive time.
Automatic by-pass system: This ensures that the flow is at all
times continued, to avoid overheating of the heat exchanger. This
system is also supported with a special by-pass function in the
control unit software.
Front view and right side view
Bottom view
3.2 Dimensions
Top view
D2CNL024A1AA
Wall-mounted condensing boiler
3P469346-12P – 2020.07
Installation Manual
5
3 About the unit
a
l
m
n
o
k
ab
b
c
d
e
f
g
h
j
i
aa
yz
v
p
q
r
s
t
w
x
u
3.3 Components
a Automatic air vent (heat exchanger)
b Flow temperature sensor
c Expansion vessel
d Gas valve
e Heat exhanger
f 3-way valve motor
g Domestic hot water temperature sensor
h Plate heat exchanger
i Safety valve (3bar)
j Condensate trap
k Ignition transformer
l Flue gas temperature sensor
m Burner hood
n Ignition electrode
o Ionisation electrode
p High limit thermostat
q Fan
r Return temperature sensor
s Silencer
t Automatic air vent (pump)
u Water pressure sensor
v By-pass
w Boiler pump
x Domestic hot water flow sensor
y Domestic hot water flow limiter
z Filling valve
aa Backflow preventer
ab Flue gas adapter
Installation Manual
6
Wall-mounted condensing boiler
D2CNL024A1AA
3P469346-12P – 2020.07
3.4 Technical specifications
Technical specifications Unit D2CNL024A1AA
Heat Input Range(Qn) kW 4~23.5
Nominal Heat Output Range (Pn) at 80-60°C kW 3.8~22.8
Nominal Heat Output Range (Pn) at 50-30°C kW 4.4~24
Efficiency (30% partial load at 30°C return temperature) % 109
Central Heating Circuit
Operating Pressure (min./max.) bar 0.6 / 3.0
Heating Circuit Temperature Interval (min./max.) °C 30 / 80
Domestic Hot Water Circuit
Hot Water Amount DT: 30°C l/min 12
Hot Water Amount DT: 35°C l/min 10.3
Water Installation Pressure (min./max.) MPa 0.05 / 1
Domestic Hot Water Temperature Interval (min./max.) °C 35 / 60
Domestic Hot Water Circuit Type — instantaneous
General
Expansion Vessel Initial Pressure bar 1
Expansion Vessel Capacity l 7
Electrical Connection VAC/Hz 230/50
Electrical Power Consumption (max.) W 100
Standby Electrical Power Consumption W 2.5
IP Rating — IPX4D
Boiler Weight kg 27
Boiler Dimensions (Height × Width × Depth) mm 590 × 400 × 256
Flue outlet diameter mm 60 / 100
Combustion specifications Unit D2CNL024A1AA
Gas Category — I
Nominal Gas Inlet Pressure (G20/G25/G31) mbar 20
G20 Gas Inlet Pressure (min./max.) mbar 17 / 25
Natural Gas (G20) Consumption (min./max.) m³/h 0.4 / 2.5
Combustion products mass flow rate (min./max.) (G20) g/s 1.88 / 10.4
Combustion products temperature (min./max.) (G20) °C 56 / 77
Maximum combustion products temp. at nominal heat input °C 90
CO2 Emission at nominal and minimum heat input (G20) % 8.7 / 9.3±0.2
NOx Class — 6
Energy-related products (ErP) specifications Symbol Unit D2CNL024A1AA
Model — — D2CNL024
Condensing boiler — — YES
Low-temperature
(b)
boiler — — NO
B1 boiler — — NO
Cogeneration space heater — — NO
Combination heater — — YES
Central heating efficiency class — — A
Rated heat output P
Useful heat output at rated heat output and high-temperature regime
Useful heat output at 30% of rated heat output and low-temperature regime
Seasonal space heating energy efficiency η
Useful efficiency at rated heat output and high-temperature regime
Useful efficiency at 30% of rated heat output and low-temperature regime
(a)
(b)
(a)
(b)
rated
P
4
P
1
s
η
4
η
1
Auxiliary electricity consumption
At full load el
At part load el
In standby mode P
max
min
SB
Other items
Standby heat loss P
Ignition burner power consumption P
Annual energy consumption Q
Sound power level, indoors (at maximum heat input) L
Emissions of nitrogen oxides NO
stby
ign
HE
WA
x
mg/kWh 42
Domestic hot water parameters
Declared load profile — — XL
Energy-related products (ErP) specifications Symbol Unit D2CNL024A1AA
Daily electricity consumption Q
elec
Annually electricity consumption AEC kWh 40
Water heating energy efficiency ŋ
wh
Water heating energy efficiency class — — A
Daily fuel consumption Q
fuel
Annual fuel consumption AFC GJ 17
(a) High-temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet.
2H
kW 23
kW 22.7
kW 7.7
% 93
% 87.9
% 98.2
kW 0.041
kW 0.016
kW 0.0025
kW 0.053
kW —
kWh 11355
dB 51
kWh 0.18
% 87
kWh 22.08
3 About the unit
D2CNL024A1AA
Wall-mounted condensing boiler
3P469346-12P – 2020.07
Installation Manual
7
4 Installation
a
a
(4)
(6)
(5)
(b) Low temperature means for condensing boilers 30°C, for low-temperature boilers 37°C and for other heaters 50°C return temperature (at heater
inlet).
4 Installation
4.1 To open the unit
WARNING
Only qualified competent persons are allowed to open the
unit.
Certain actions explained in this document, such as gas conversion,
optional equipment connection, require that the front cover is
opened.
1 Loosen the screw that holds the right mounting clips (1).
2 Dismantle the two mounting clips that hold the front cover (2).
3 Remove the front cover forwards (3).
a Control panel
5 Shift the control panel downwards (5) and then pull it forwards
(6).
4 Loosen the two screws of the control panel (4).
Installation Manual
a Front cover
8
Wall-mounted condensing boiler
D2CNL024A1AA
3P469346-12P – 2020.07
Loading...