Daikin EHY2KOMB28AA, EHY2KOMB32AA Operation manuals

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Installation and operation manual

Daikin Altherma H Hybrid –

Gas boiler module

EHY2KOMB28AA EHY2KOMB32AA

Installation and operation manual

Daikin Altherma H Hybrid – Gas boiler module

English

Directivelor, cu amendamentele respective.

<A>

<C>

KIWA (NB0063)

18GR0508

DAIKIN.TCF.RED.004

DAIKIN.TCF.GAR.001

Direktive z vsemi spremembami.

Direktiivid koos muudatustega.

Директиви, с техните изменения.

Direktyvose su papildymais.

Direktīvās un to papildinājumos.

Smernice, v platnom znení.

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Direktiver, med senere ændringer.

Direktiv, med företagna ändringar.

Direktiver, med foretatte endringer.

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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:

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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 snašim

návodom:

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

Directives, telles que modifiées.

010203040506070809

Değiştirilmiş halleriyle Yönetmelikler.

Direktiivejä, sellaisina kuin ne ovat muutettuina.

v platném znění.

Smjernice, kako je izmijenjeno.

irányelv(ek) és módosításaik rendelkezéseit.

z późniejszymi poprawkami.

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

съгласно Сертификата<C>.

kaip nustatyta <A> ir kaip teigiamai nuspręsta pagal

Sertifikatą<C>.

kā norādīts <A> un atbilstoši pozitīvajam vērtējumam

saskaņā ar sertifikātu<C>.

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

s osvedčením<C>.

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

tarafından olumlu olarak değerlendirildiği gibi.

Директив со всеми поправками.

21Забележка*

22Pastaba*

23Piezīmes*

24Poznámka*

25Not*

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

<C>tanúsítvány szerint.

zgodnie z dokumentacją <A>, pozytywną

opinią i Świadectwem<C>.

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

în conformitate cu Certificatul<C>.

kot je določeno v <A> in odobreno s strani

vskladu scertifikatom<C>.

nagu on näidatud dokumendis <A> ja heaks kiidetud

järgi vastavalt sertifikaadile<C>.

16Megjegyzés*

17Uwaga*

18Notă*

19Opomba*

20Märkus*

Low Voltage 2014/35/EU

Boiler Efficiency 92/42/EEC

Radio Equipment 2014/53/EU

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:

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10

11

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estão em conformidade com a(s) seguinte(s) norma(s) ou outro(s) documento(s) normativo(s), desde que estes sejam utilizados de

acordo com as nossas instruções:

соответствуют следующим стандартам или другим нормативным документам, при условии их использования согласно нашим инструкциям:

overholder følgende standard(er) eller andet/andre retningsgivende dokument(er), forudsat at disse anvendes i henhold til vore instrukser:

respektive utrustning är utförd i överensstämmelse med och följer följande standard(er) eller andra normgivande dokument, under förutsättning att

användning sker i överensstämmelse med våra instruktioner:

respektive utstyr er i overensstemmelse med følgende standard(er) eller andre normgivende dokument(er), under forutssetning av at disse brukes i

henhold til våre instrukser:

vastaavat seuraavien standardien ja muiden ohjeellisten dokumenttien vaatimuksia edellyttäen, että niitä käytetään ohjeidemme mukaisesti:

za předpokladu, že jsou využívány v souladu s našimi pokyny, odpovídají následujícím normám nebo normativním dokumentům:

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

ob upoštevanju določb:

vastavalt nõuetele:

следвайки клаузите на:

laikantis nuostatų, pateikiamų:

ievērojot prasības, kas noteiktas:

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održiavajúc ustanovenia:

enligt <A> och godkänts av enligt

Certifikatet<C>.

som det fremkommer i <A> og gjennom positiv

bedømmelse av ifølge Sertifikat<C>.

jotka on esitetty asiakirjassa <A> ja jotka

on hyväksynyt Sertifikaatin<C> mukaisesti.

jak bylo uvedeno v <A> a pozitivně zjištěno

vsouladu sosvědčením<C>.

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

11Information*

12Merk*

13Huom*

14Poznámka*

15Napomena*

bunun koşullarına uygun olarak:

delineato nel <A> e giudicato positivamente da

secondo il Certificato<C>.

όπως καθορίζεται στο <A> και κρίνεται θετικά

από το σύμφωνα με το Πιστοποιητικό<C>.

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

de de acordo com o Certificado<C>.

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

решением согласно Свидетельству<C>.

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

prema Certifikatu<C>.

Certifikat<C>.

Hiromitsu Iwasaki

Director

Ostend, 14th of March 2019

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.

03

06Nota*

07Σημείωση*

08Nota*

09Примечание*

10Bemærk*

under iagttagelse af bestemmelserne i:

enligt villkoren i:

gitt i henhold til bestemmelsene i:

noudattaen määräyksiä:

za dodržení ustanovení předpisu:

prema odredbama:

követi a(z):

zgodnie z postanowieniami Dyrektyw:

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verklaart hierbij op eigen exclusieve verantwoordelijkheid dat de 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:

EHY2KOMB28AA*, EHY2KOMB32AA*,

* = , , 1, 2, 3, ..., 9

06

07

are in conformity with the following standard(s) or other normative document(s), provided that these are used in accordance with our instructions:

der/den folgenden Norm(en) oder einem anderen Normdokument oder -dokumenten entspricht/entsprechen, unter der Voraussetzung, daß sie gemäß

unseren Anweisungen eingesetzt werden:

sont conformes à la/aux norme(s) ou autre(s) document(s) normatif(s), pour autant qu'ils soient utilisés conformément à nos instructions:

conform de volgende norm(en) of één of meer andere bindende documenten zijn, op voorwaarde dat ze worden gebruikt overeenkomstig onze

instructies:

están en conformidad con la(s) siguiente(s) norma(s) u otro(s) documento(s) normativo(s), siempre que sean utilizados de acuerdo con nuestras

instrucciones:

sono conformi al(i) seguente(i) standard(s) o altro(i) documento(i) a carattere normativo, a patto che vengano usati in conformità alle nostre istruzioni:

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

01020304050607

σύμφωνα με τις οδηγίες μας:

following the provisions of:

gemäß den Vorschriften der:

conformément aux stipulations des:

EN15502-1: 2012 + A1: 2015, EN60335-2-102: 2016, EN55014-1: 2017, EN55014-2: 2015, EN61000-3-2: 2014, EN61000-3-3: 2013, ETSI EN300220-1 v3.1.1, ETSI EN300220-2 v3.1.1,

overeenkomstig de bepalingen van:

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în urma prevederilor:

as set out in <A> and judged positively by

according to the Certificate<C>.

wie in <A> aufgeführt und von positiv

beurteilt gemäß Zertifikat<C>.

tel que défini dans <A> et évalué positivement par

conformément au Certificat<C>.

zoals vermeld in <A> en positief beoordeeld door

siguiendo las disposiciones de:

secondo le prescrizioni per:

με τήρηση των διατάξεων των:

de acordo com o previsto em:

в соответствии с положениями:

01Note*

02Hinweis*

03Remarque*

04Bemerk*

overeenkomstig Certificaat<C>.

como se establece en <A> y es valorado

positivamente por de acuerdo con el

05Nota*

Certificado<C>.

2P369568-6J

Table of contents

1 About the product 3 2 About the documentation 4

2.1 About this document.................................................................. 4

3 General safety precautions 4

3.1 About the documentation .......................................................... 4

3.1.1 Meaning of warnings and symbols.............................. 4

3.2 For the installer.......................................................................... 5

3.2.1 General ....................................................................... 5

3.2.2 Installation site ............................................................ 5

3.2.3 Water .......................................................................... 6

3.2.4 Electrical ..................................................................... 6

3.2.5 Gas ............................................................................. 7

3.2.6 Gas exhaust................................................................ 7

3.2.7 Local legislation .......................................................... 7

4 About the box 8

4.1 Gas boiler .................................................................................. 8

4.1.1 Symbols on the package............................................. 8

4.1.2 To unpack the gas boiler............................................. 8

4.1.3 To remove the accessories from the gas boiler.......... 8

5 About the units and options 9

5.1 Identification .............................................................................. 9

5.1.1 Identification label: Gas boiler..................................... 9

5.2 Combining units and options ..................................................... 9

5.2.1 Possible options for the gas boiler.............................. 9

6 Installation 12

6.1 Opening the unit ........................................................................ 12

6.1.1 To open the gas boiler ................................................ 12

6.1.2 To open the switch box cover of the gas boiler........... 12

6.2 Installation space....................................................................... 12

6.2.1 Installation space requirements .................................. 12

6.3 Mounting the gas boiler ............................................................. 12

6.3.1 To install the gas boiler............................................... 12

6.3.2 To install the condensate trap..................................... 13

6.4 Condensate pipe work............................................................... 14

6.4.1 Internal connections.................................................... 14

6.4.2 External connections................................................... 14

6.5 Connecting water piping............................................................ 14

6.5.1 Connecting the water piping of the gas boiler............. 14

6.6 Connecting the electrical wiring................................................. 15

6.6.1 To connect the main power supply of the gas boiler... 16

6.6.2 To connect the electrical wiring to the gas boiler........ 16

6.7 Connecting the gas piping......................................................... 16

6.7.1 To connect the gas pipe.............................................. 16

6.8 Connecting the boiler to the flue gas system ............................ 17

6.8.1 To change the gas boiler to 80/125 concentric

connection................................................................... 17

6.8.2 To change the 60/100 concentric connection to a

dual pipe connection ................................................... 17

6.8.3 Calculate the total piping length.................................. 18

6.8.4 Appliance categories and pipe lengths ....................... 18

6.8.5 Applicable materials.................................................... 21

6.8.6 Flue pipe position........................................................ 21

6.8.7 Insulation of the gas exhaust and air intake................ 22

6.8.8 Fitting a horizontal flue system ................................... 22

6.8.9 Fitting a vertical flue system........................................ 22

6.8.10 Plume management kit ............................................... 22

6.8.11 Flues in voids.............................................................. 23

6.8.12 Flue gas materials (C63) available on the market ...... 23

6.8.13 About securing the flue system................................... 23

6.9 Finishing the gas boiler installation ........................................... 25

6.9.1 To perform an air purge on the gas supply................. 25

6.9.2 To close the gas boiler................................................ 25

6.9.3 To install the cover plate.............................................. 25

7 Configuration 25

7.1 Gas boiler ................................................................................... 25

7.1.1 Overview: Configuration............................................... 25

7.1.2 Basic configuration....................................................... 25

8 Operation 31

8.1 Overview: Operation................................................................... 31

8.2 Heating ....................................................................................... 31

8.3 Domestic hot water..................................................................... 31

8.4 Operation modes........................................................................ 31

9 Commissioning 32

9.1 To perform a gas pressure test .................................................. 32

9.2 To perform a test run on the gas boiler ...................................... 32

10 Maintenance and service 32

10.1 Maintenance safety precautions................................................. 32

10.1.1 Opening the gas boiler................................................. 32

10.2 To disassemble the gas boiler.................................................... 32

10.3 To clean the inside of the gas boiler........................................... 34

10.4 To assemble the gas boiler ........................................................ 34

11 Troubleshooting 35

11.1 General guidelines ..................................................................... 35

11.2 Precautions when troubleshooting ............................................. 35

11.3 Solving problems based on symptoms....................................... 35

11.3.1 Symptom: The burner does NOT ignite ....................... 35

11.3.2 Symptom: The burner ignites noisily............................ 35

11.3.3 Symptom: The burner resonates ................................. 36

11.3.4 Symptom: No space heating by the gas boiler ............ 36

11.3.5 Symptom: The power is reduced ................................. 36

11.3.6 Symptom: Space heating does NOT reach the

temperature.................................................................. 36

11.3.7 Symptom: No domestic hot water................................ 36

11.3.8 Symptom: Hot water does NOT reach the

temperature (no tank installed) .................................... 36

11.3.9 Symptom: Hot water does NOT reach the

temperature (tank installed) ......................................... 36

11.4 Solving problems based on error codes..................................... 36

11.4.1 Error codes: Overview ................................................. 36

12 Glossary 37 13 Technical data 38

13.1 Components ............................................................................... 38

13.1.1 Components: Gas boiler .............................................. 38

13.2 Wiring diagram ........................................................................... 39

13.2.1 Wiring diagram: Gas boiler .......................................... 39

13.3 Technical specifications ............................................................. 39

13.3.1 Technical specifications: Gas boiler............................. 39

14 Disposal 44

1 About the product

Especially for UK:

The Benchmark Scheme

Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with the manufacturer’s instructions by competent persons and that it meets the requirements of the appropriate Building Regulations. The

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

2 About the documentation

Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should be provided to the customer for future reference.

Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote the Scheme. Visit http://

www.centralheating.co.uk for more information.

a Gas boiler module

INFORMATION

This product is intended for domestic use only.

2 About the documentation

▪ User reference guide:

▪ Detailed step-by-step instructions and background information

for basic and advanced usage

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

and-manuals/product-information/

▪ Installation manual – Heat pump module:

▪ Installation instructions

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

▪ Installation and operation manual – Gas boiler module:

▪ Installation and operation instructions

▪ Format: Paper (in the box of the gas boiler)

▪ Installer reference guide:

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

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

and-manuals/product-information/

▪ Addendum book for optional equipment:

▪ Additional info about how to install optional equipment

▪ Format: Paper (in the box of the outdoor unit) + Digital files on

http://www.daikineurope.com/support-and-manuals/productinformation/

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

Business Portal (authentication required).

2.1 About this document

WARNING

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.

Target audience

Authorised installers

Documentation set

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

▪ General safety precautions:

▪ Safety instructions that you must read before installing

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

▪ Operation manual:

▪ Quick guide for basic usage

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

3 General safety precautions

3.1 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 in the installer reference guide MUST be performed by an authorised installer.

3.1.1 Meaning of warnings and symbols

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/SCALDING

Indicates a situation that could result in burning/scalding because of extreme hot or cold temperatures.

DANGER: RISK OF EXPLOSION

Indicates a situation that could result in explosion.

Installation and operation manual

DANGER: RISK OF POISONING

Indicates a situation that could result in poisoning.

EHY2KOMB28+32AA

Daikin Altherma H Hybrid – Gas boiler module

4P538953-1B – 2020.10

3 General safety precautions

WARNING

Indicates a situation that could result in death or serious injury.

WARNING: PROTECT AGAINST FROST

Indicates a situation that could result in equipment or property damage.

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.

INFORMATION

Indicates useful tips or additional information.

Symbols used on the unit:

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.

The unit contains rotating parts. Be careful when servicing or inspecting the unit.

Symbols used in the documentation:

Symbol Explanation

Indicates a figure title or a reference to it. Example: " 1–3 Figure title" means "Figure 3 in

chapter 1". Indicates a table title or a reference to it.

Example: " 1–3 Table title" means "Table 3 in chapter 1".

3.2 For the installer

3.2.1 General

If you are NOT sure how to install or operate the unit, contact your dealer.

DANGER: RISK OF BURNING/SCALDING

▪ 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.

WARNING

Improper installation or attachment of equipment or accessories could result in electrical 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.

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.

CAUTION

Do NOT touch the air inlet or aluminium fins of the unit.

CAUTION

▪ Do NOT place any objects or equipment on top of the

unit.

▪ Do NOT sit, climb or stand on the unit.

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,…

Also, at least, following information MUST be provided at an accessible place at the product:

▪ Instructions for shutting down the system in case of an emergency

▪ Name and address of fire department, police and hospital

▪ Name, address and day and night telephone numbers for

obtaining service

In Europe, EN378 provides the necessary guidance for this logbook.

For Swiss market, domestic hot water operation should only be prepared in combination with a tank. Instant domestic hot water by the gas boiler is NOT allowed. Make the correct settings as described in this manual.

Please follow following Swiss regulations and directives:

▪ SVGW-gas principles G1 for gas installations,

▪ SVGW-gas principles L1 for liquid gas installations,

▪ cautional instances regulations (e.g., fire regulation).

3.2.2 Installation site

▪ Provide sufficient space around the unit for servicing and air

circulation.

▪ Make sure the installation site withstands the weight and vibration

of the unit.

▪ Make sure the area is well ventilated. Do NOT block any

ventilation openings.

▪ Make sure the unit is level.

▪ If the wall on which the unit is mounted is flammable, a non-

flammable material must be placed between the wall and the unit. Do the same for all locations through which the flue piping passes.

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

3 General safety precautions

▪ ONLY operate the gas boiler if a sufficient supply of combustion

air is ensured. In case of a concentric air/flue gas system dimensioned according to the specifications of this manual, this is fulfilled automatically and there are no other conditions for the equipment installation room. This method of operation applies exclusively.

▪ Store flammable fluids and materials at least 1meter away from

the gas boiler.

Do NOT install the unit in the following places:

▪ In potentially explosive atmospheres.

▪ In places where there is machinery that emits electromagnetic

waves. Electromagnetic waves may disturb the control system, and cause malfunction of the equipment.

▪ In places where there is a risk of fire due to the leakage of

flammable gases (example: thinner or gasoline), carbon fibre, ignitable dust.

▪ In places where corrosive gas (example: sulphurous acid gas) is

produced. Corrosion of copper pipes or soldered parts may cause the refrigerant to leak.

▪ In bathrooms.

▪ In places where frost is possible. The ambient temperature around

the gas boiler should be >5°C.

3.2.3 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.

Avoid damages caused by deposits and corrosion. To prevent corrosion products and deposits, observe the applicable regulations of technology.

Measures for desalination, softening or hardness stabilization are necessary if the filling and top-up water have a high total hardness (>3 mmol/l–sum of the calcium and magnesium concentrations, calculated as calcium carbonate).

Using filling water and top-up water which does NOT meet the stated quality requirements can cause a considerably reduced service life of the equipment. The responsibility for this is entirely that of the user.

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.

▪ Make sure to use a dedicated power circuit. NEVER

use a power supply shared by another appliance.

▪ Make sure to install the required fuses or circuit

breakers.

▪ Make sure to install an earth leakage protector. Failure

to do so may cause electrical shock or fire.

▪ 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.

CAUTION

▪ When connecting the power supply: connect the earth

cable first, before making the current-carrying connections.

▪ When disconnecting the power supply: disconnect the

current-carrying cables first, before separating the earth connection.

▪ The length of the conductors between the power supply

stress relief and the terminal block itself must be as such that the current-carrying wires are tautened before the earth wire is in case the power supply is pulled loose from the stress relief.

NOTICE

Precautions when laying power wiring:

3.2.4 Electrical

DANGER: RISK OF ELECTROCUTION

▪ Turn OFF all power supply before removing the switch

box cover, connecting electrical wiring or touching electrical parts.

▪ Disconnect the power supply for more than 10minutes,

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.

▪ Do NOT touch electrical components with wet hands.

▪ 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.

Installation and operation manual

▪ Do NOT connect wiring of different thicknesses to the

power terminal block (slack in the power wiring may cause abnormal heat).

▪ When connecting wiring which is the same thickness,

do as shown in the figure above.

▪ For wiring, use the designated power wire and connect

firmly, then secure to prevent outside pressure being exerted on the terminal board.

▪ Use an appropriate screwdriver for tightening the

terminal screws. A screwdriver with a small head will damage the head and make proper tightening impossible.

▪ Over-tightening the terminal screws may break them.

Install power cables at least 1m away from televisions or radios to prevent interference. Depending on the radio waves, a distance of 1m may not be sufficient.

EHY2KOMB28+32AA

Daikin Altherma H Hybrid – Gas boiler module

4P538953-1B – 2020.10

3 General safety precautions

WARNING

▪ After finishing the electrical work, confirm that each

electrical component and terminal inside the electrical components box is connected securely.

▪ Make sure all covers are closed before starting up the

unit.

NOTICE

Only applicable if the power supply is three‑phase, and the compressor has an ON/OFF starting method.

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.

3.2.5 Gas

The gas boiler is factory‑set to:

▪ the type of gas quoted on the type identification plate or on the

setting type identification plate,

▪ the gas pressure quoted on the type identification plate.

Operate the unit ONLY with the gas type and gas pressure indicated on these type identification plates.

Installation and adaptation of the gas system MUST be conducted by:

▪ personnel qualified for this work,

▪ in compliance with valid gas installation related guidelines,

▪ in accordance with applicable regulations of the gas supply

company,

▪ In accordance with local and national regulations.

Boilers that use natural gas MUST be connected to a governed meter.

Boilers that use liquid petroleum gas (LPG) MUST be connected to a regulator.

The size of the gas supply pipe should under no circumstance be less than 22mm.

The meter or regulator and pipe work to the meter MUST be checked preferably by the gas supplier. This is to ensure that the equipment works good and meets the gas flow and pressure requirements.

DANGER

If you smell gas:

▪ call immediately your local gas supplier and your

installer,

▪ call the suppliers's number on the side of the LPG tank

(if applicable),

▪ turn off the emergency control valve at the meter/

regulator,

▪ do NOT turn electrical switches ON or OFF,

▪ do NOT strike matches or smoke,

▪ put out naked flames,

▪ open doors and windows immediately,

▪ keep people away from the affected area.

components and systems could invalidate the warranty. The manufacturer accepts no liability arising from any such actions, excluding statutory rights.

It is NOT allowed to combine flue system parts purchased from different suppliers.

3.2.7 Local legislation

See the local and national regulations.

Local regulations for UK

It is law that all gas appliances are installed by a gas safe registered competent engineer and in accordance with the following recommendations:

▪ Current Gas Safety (Installation and Use) Regulations

▪ All current building regulations

▪ Building Standards (Scotland) Consolidated

▪ This appliance MUST be installed in accordance with the Gas

(Safety and Use) Regulations, current Building Regulations, Building Standards (Scotland), I.S.813 Installation of Gas Appliances (Ireland), IEE Wiring Regulations (BS 7671), Health and Safety Document No. 635 (Electricity at Work Regulations) and Local Water Authority Bye Laws

▪ UK Water Regulations and Bye Laws

▪ Health & Safety

The installation MUST comply with the following British Standards codes of practice:

▪ BS 5440-1: 2008 Flueing and ventilation for gas appliances of

rated input not exceeding 70 kW net (1st, 2nd and 3rd family gases)

▪ BS 5440-2: 2009 Flueing and ventilation for gas appliances of

rated input not exceeding 70 kW net (1st, 2nd and 3rd family gases)

▪ BS 5546: 2010 Specification for installation and maintenance of

gas-fired water-heating appliances of rated input not exceeding 70kW net

▪ BS 5549: 1990 Forced circulation hot water systems.

▪ BS 6700: 2006 + A1: 2009 Design, installation, testing and

maintenance of services supplying water for domestic use within buildings and their curtilages - Specification

▪ BS 6798: 2014 Specification for selection, installation, inspection,

commissioning, servicing and maintenance of gas-fired boilers of rated input not exceeding 70kW net

▪ BS 6891: 2015 Specification for the installation and maintenance

of low pressure gas installation pipework of up to 35mm (R1¼) on premises

▪ BS 7593: 2006 Code of practice for treatment of water in domestic

hot water space heating systems

▪ BS 7671: 2018 Requirements for electrical installations. IET wiring

regulations

▪ BS 7074: 1 Code of practice for domestic and hot water supply

▪ EN12828: 2014 Space heating for domestic premises

Potable water: all seals, joints and compounds (including flux and solder) and components used as part of the secondary domestic water system MUST be approved by WRAS.

3.2.6 Gas exhaust

Flue systems must NOT be modified or installed in any way other than as described in the fitting instructions. Any misuses or unauthorized modifications to the appliance, flue or associated

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

4 About the box

MAX. 2

MAX. 3

c d

a b c d

4 About the box

4.1 Gas boiler

4.1.1 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.

When stacking 4 boxes on one pallet, no more than 3 pallets should be stacked on top of each other.

4.1.2 To unpack the gas boiler

Before unpacking, move the gas boiler as close as possible to its installation position.

WARNING

Tear apart and throw away plastic packaging bags so that nobody, especially children, can play with them. Possible risk: suffocation.

4.1.3 To remove the accessories from the gas boiler

1 Remove the accessories.

Installation and operation manual

a Mounting strip

b Condensate trap

c Installation and operation manual

d Current loop module, cable and installation manual

EHY2KOMB28+32AA

Daikin Altherma H Hybrid – Gas boiler module

4P538953-1B – 2020.10

5 About the units and options

5.1 Identification

5.1.1 Identification label: Gas boiler

Location

Model identification

Unit detail Description

******-yymm****** Product code-Serial No.

yy = year of production, mm = month of production

PIN Product Identification Number

Unit detail Description

Data related to domestic hot water

Data related to space heating

Information regarding electrical power supply (Voltage, mains frequency, elmax, IP-class)

PMS Permissible overpressure in

space heating circuit

PWS Permissible overpressure in

domestic hot water circuit

Qn HS Input related to gross caloric

value in kilowatts

Qn Hi Input related to net caloric value

in kilowatts Pn Output in kilowatts DE, FR, GB, IT, NL Countries of Destination

(EN437) I2E(s), I2H, IIELL3P, II2H3P,

II2Esi3P G20-20mbar

G25-25mbar

Approved unit categories

(EN437)

Gas group and gas connection

pressure as set at the factory

(EN437) B23, …., C93(x) Approved flue gas category

(EN15502) Tmax Maximum flow temperature in °C IPX4D Electrical protection class

5.2 Combining units and options

5.2.1 Possible options for the gas boiler

Main options

Part EHY2KOMB28AA EHY2KOMB32AA Boiler cover plate

Cover plate to protect the piping and valves of the gas boiler. For installation instructions, see the installation manual of the cover plate.

(a)

Gas conversion kit G25

Kit for the conversion of the gas boiler for use with gas type G25. EKPS076217 EKPS076227

Gas conversion kit G31

Kit for the conversion of the gas boiler for use with gas type G31 EKPS075867 EKHY075787

Dual pipe conversion kit

Kit for the conversion of a concentric flue gas system to a dual pipe system. For installation instructions, see the installation manual of the dual pipe conversion kit.

80/125 concentric connection kit

Kit for the conversion of 60/100 concentric flue gas connections to 80/125 concentric flue gas connections. For installation instructions, see the installation manual of the concentric connection kit.

B-packs

An integrated solution for expansion vessel to make filling easier. Required installation space is limited.

(a)

EKFJM1A

EKFJM2A

EKFJM6A

Valve kit

To easier connect pipes and valves. For installation instruction, see the manual of the kit. EKVK4A

Filling loop set

To fill and top up the space heating system. EKFL1A

EKHY093467

EKCP1A

EKHY090707

EKHY090717

(b)

(c)

(d)

EKVK6A

EKFJL1A

EKFJL2A

EKFJL6A

(b)

(c)

(d)

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

5 About the units and options

Part EHY2KOMB28AA EHY2KOMB32AA Solar water heater connection set

To combine the boiler with a solar heated tank. EKSH1A

Dongle set

To set up wireless communication between the gas boiler and a computer EKDS1A

(a)

The boiler cover plate cannot be used with B-packs.

(b)

Only applicable for Italy, United Kingdom, Czech Republic, Greece, Poland, Spain, and Portugal.

(c)

Only applicable for France and Belgium.

(d)

Only applicable for Germany.

Other options

Accessories Part number Description

EKFGP6837 Roof terminal PP/GLV 60/100

AR460

EKFGS0518 Weather slate steep Pb/GLV

60/100 18°-22°

EKFGS0519 Weather slate steep Pb/GLV

60/100 23°-17°

EKFGP7910 Weather slate steep PF 60/100

25°-45°

EKFGS0523 Weather slate steep Pb/GLV

60/100 43°-47°

EKFGS0524 Weather slate steep Pb/GLV

60/100 48°-52°

EKFGS0525 Weather slate steep Pb/GLV

60/100 53°-57°

EKFGP1296 Weather slate flat Aluminium

60/100 0°-15°

EKFGP6940 Weather slate flat Aluminium

60/100

EKFGP2978 Wall terminal kit PP/GLV

60/100

EKFGP2977 Wall terminal kit low profile PP/

GLV 60/100

EKFGP4651 Extension PP/GLV

60/100×500mm

Accessories Part number Description

EKFGP1295 Flue deflector 60 (UK only)

EKFGP1284 PMK elbow 60 90 (UK only)

EKFGP1285 PMK elbow 60 45° (2pieces)

(UK only)

EKFGP1286 PMK extension 60 L=1000

includes bracket (UK only)

EKFGW5333 Weather slate flat aluminium

80/125

EKFGW6359 Wall terminal kit PP/GLV

80/125

EKFGP4801 Extension PP/GLV

80/125×500mm

EKFGP4802 Extension PP/GLV

80/125×1000mm

EKFGP4814 Elbow PP/GLV 80/125 30°

EKFGP4811 Elbow PP/ALU 80/125 45°

EKFGP4652 Extension PP/GLV

EKFGP4664 Elbow PP/GLV 60/100 30°

EKFGP4661 Elbow PP/GLV 60/100 45°

EKFGP4660 Elbow PP/GLV 60/100 90°

EKFGP4667 Meas. tee with inspection panel

EKFGP4631 Wall bracket Ø100

EKFGP1292 Wall terminal Kit PP/GLV

EKFGP1293 Wall terminal kit low profile PP/

EKFGP1294 Plume management kit 60 (UK

Installation and operation manual

60/100×1000mm

PP/GLV 60/100

60/100

GLV 60/100

only)

EKFGP4810 Elbow PP/ALU 80/125 90°

EKFGP4820 Inspection elbow Plus PP/ALU

80/125 90° EPDM

EKFGP6864 Roof Terminal PP/GLV 80/125

AR300 RAL9011

EKFGT6300 Weather slate steep Pb/GLV

80/125 18°-22°

EKFGT6301 Weather slate steep Pb/GLV

80/125 23°-27°

EKFGP7909 Weather slate steep PF 80/125

25°-45° RAL9011

EKFGT6305 Weather slate steep Pb/GLV

80/125 43°-47°

EKFGT6306 Weather slate steep Pb/GLV

80/125 48°-52°

EKFGT6307 Weather slate steep Pb/GLV

80/125 53°-57°

EHY2KOMB28+32AA

Daikin Altherma H Hybrid – Gas boiler module

4P538953-1B – 2020.10

5 About the units and options

Accessories Part number Description

EKFGP1297 Weather slate flat aluminium

80/125 0°-15°

EKFGP6368 Tee flex 100 boiler connection

set 1

EKFGP6354 Flex 100-60 + support elbow

EKFGP6215 Tee flex 130 boiler connection

set 1

EKFGS0257 Flex 130-60 + support elbow

EKFGP4678 Chimney connection 60/100

Accessories Part number Description

EKFGP6353 Support bracket top inox Ø130

EKFGS0250 Extension flex PP130 L=130m

EKFGP6366 Connector flex-flex PP130

EKFGP1856 Flex kit PPØ60-80

EKFGP4678 Chimney connection 60/100

EKFGP2520 Flex kit PP Ø80

EKFGP5461 Extension PP 60×500

EKFGP5497 Chimney top PP 100 with

included flue pipe

EKFGP6316 Adapter flex-fixed PP 100

EKFGP6337 Support bracket top inox Ø100

EKFGP6346 Extension flex PP100 L=10m

EKFGP6349 Extension flex PP100 L=15m

EKFGP6347 Extension flex PP100 L=25m

EKFGP6325 Connector flex-flex PP100

EKFGP4828 Chimney connection 80/125

EKFGP6340 Extension Flex PP80 L=10m

EKFGP6344 Extension Flex PP80 L=15m

EKFGP6341 Extension Flex PP80 L=25m

EKFGP6342 Extension Flex PP80 L=50m

EKFGP6324 Connector-flex-flex PP80

EKFGP6333 Spacer PP80-100

EKFGP4481 Fixation Ø100

EKFGP5197 Chimney top PP 130 with

included flue pipe

EKFGS0252 Adapter flex-fixed PP130

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

EKFGV1101 Chimney connection 60/10

airintake Dn.80 C83

EKFGV1102 Connection set 60/10-60 Flue/

Air intake Dn.80 C53

Installation and operation manual

6 Installation

50 cm²

2 cm

Accessories Part number Description

EKFGW4001 ExtensionPBM-Air 80×500

EKFGW4002 ExtensionPBM-Air 80×1000

EKFGW4004 ExtensionPBM-Air 80×2000

EKFGW4085 ElbowPPBM-Air8090°

EKFGW4086 ElbowPPBM-Air8045°

EKGFP1289 ElbowPP/GALV 60/100 50°

EKGFP1299 Kit horizontal low profile PP/

GLV 60/100 (UK only)

INFORMATION

For extra configuration options regarding the flue gas system, visit http://fluegas.daikin.eu/.

INFORMATION

For the installation of the flue and air supply duct material, see the manual included with the materials. Contact the manufacturer of the relevant flue and air supply duct materials for extensive technical information and specific assembly instructions.

6 Installation

2 Unscrew both screws. 3 Tilt the front panel towards you and remove the front panel.

6.1.2 To open the switch box cover of the gas boiler

1 Open the gas boiler, see "6.1.1To open the gas boiler"[412]. 2 Pull the boiler controller unit forwards. The boiler controller will

tip downwards to provide access.

6.2 Installation space

6.2.1 Installation space requirements

Within 1meter of the unit, there must be an earthed wall plug. The unit can be placed between two kitchen cabinets, or inside a kitchen cabinet. Make sure there is sufficient ventilation at the bottom and the top of the unit. If the unit is installed inside a cabinet, 2cm of free space at both sides of the unit and ventilation openings of at least 50 cm² are required. Make sure to have enough space above the unit. It must be possible to slightly tilt the top cover and perform maintenance.

6.1 Opening the unit

6.1.1 To open the gas boiler

1 Open the display cover.

6.3 Mounting the gas boiler

6.3.1 To install the gas boiler

1 Lift the unit from the package.

Installation and operation manual

Daikin Altherma H Hybrid – Gas boiler module

EHY2KOMB28+32AA

4P538953-1B – 2020.10

33~36kg

2 The bracket to mount the boiler on the heat pump module is an

2×

accessory of the gasboiler. Fix the wall bracket to the wall with 2 M8 bolts.

6 Installation

6.3.2 To install the condensate trap

INFORMATION

The boiler is provided with a Ø25mm flexible pipe on the condensate trap.

Prerequisite: The boiler MUST be opened before installing the condensate trap.

1 Fit the flexible tube (accessory) to the condensate trap outlet. 2 Fill the condensate trap with water. 3 Slide the condensate trap as far as possible upwards onto the

condensate drain connector below the gas boiler.

4 Connect the flexible tube (where applicable with the overflow

pipe from the pressure relief valve) to the drain via an open connection.

3 Lift the boiler. One person lifts the gas boiler on the left side (left

hand on the top and right hand on the bottom) and another person lifts the gas boiler on the right side (left hand on the bottom and right hand on the top).

4 Tilt the top of the unit at the position of the wall bracket and

slide the boiler downwards to fix the boiler bracket onto the wall bracket.

WARNING

▪ ALWAYS fill the condensate trap with water and place

it on the boiler before powering up the boiler. See illustration below.

▪ NOT placing or filling up the condensate trap may

cause flue gases to come into the installation room and can lead to dangerous situations!

▪ In order to place the condensate trap, the front cover

MUST be pulled forward or removed entirely.

5 Make sure the gas boiler is fixed properly to the wall.

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

6 Installation

Ø22 mm

≥75 mm

Ø22 mm

100 mm

Ø22 mm

≥75 mm

a b

NOTICE

It is recommended that any external condensate pipe is insulated and increased to Ø32mm in order to prevent the condensate from freezing.

6.4 Condensate pipe work

INFORMATION

The condensate discharge system MUST be made of plastic, no other materials may be used. The discharge duct MUST have a minimum gradient of 5~20 mm/m. Condensate discharge via the gutter is NOT allowed due to risk of frost and the possible damage to the materials.

6.4.1 Internal connections

If possible, the condensate drain pipe should be routed and terminated so that the condensate drains away from the boiler under gravity to a suitable internal foul water discharge point such as an internal soil and vent stack. A suitable permanent connection to the foul waste pipe should be used.

a Condensate discharge from boiler b Soil and vent stack c Minimum 450mm and up to 3 storeys

If the first option is NOT possible, an internal kitchen or bathroom waste pipe, washing machine pipe can be used. Make sure that the condensate drain pipe is connected downstream of the waste trap.

The pump outlet pipe should discharge to a suitable internal foul water discharge point such as an internal soil and vent stack, internal kitchen, bathroom waste pipe, or washing machine waste pipe. A suitable permanent connection to the foul waste pipe should be used.

a Condensate discharge from boiler

b Soil and vent stack

c Sink or basin with integrated overflow

d 75mm waste trap and air break

e Condensate pump

6.4.2 External connections

If an externally condensate drainage pipe is used, following measures should be made to prevent freezing:

▪ The pipe should be run internally as far as possible before going

to the outside. The pipe diameter should be increased to a minimum inner diameter of 30 mm (typically outer diameter of 32mm) before it goes through the wall.

▪ The external run should be kept as short as possible, taking the

most vertical route possible to the discharge point. Take into account that there are no horizontal sections in which condensate might collect.

▪ The external pipe should be insulated. Use a suitable waterproof

and weather proof insulation ("ClassO" pipe insulation is suitable for this purpose).

▪ The use of fittings and elbows should be kept to a minimum. Any

internal burrs should be removed so that the internal pipe section is as smooth as possible.

a Condensate discharge from boiler b Soil and vent stack c Sink or basin with integrated overflow d 75mm waste trap and air break

Condensate pump

Where gravity discharge to an internal termination is NOT physically possible or where very long internal runs of drainage pipe would be required to reach a suitable discharge point, condensate should be removed by using a proprietary condensate pump (field supply).

Installation and operation manual

6.5 Connecting water piping

6.5.1 Connecting the water piping of the gas boiler

To connect the water piping for domestic hot water (not applicable for Switzerland)

1 Flush the installation thoroughly to clean.

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Daikin Altherma H Hybrid – Gas boiler module

4P538953-1B – 2020.10

6 Installation

0.2

0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

bar

B A

l/min

a b

a Domestic hot water outlet b Cold water inlet c Pressure relief valve (field supply)

2 Install a pressure relief valve according to local and national

regulations (if required).

3 Connect the hot water connection (Ø15mm). 4 Connect the main cold water connection (Ø15mm).

DANGER: RISK OF BURNING/SCALDING

In case of high leaving water setpoints for space heating (either a high fixed setpoint or a high weather-dependent setpoint at low ambient temperatures), the heat exchanger of the boiler can be heated up to temperatures higher than 70°C.

In case of a tapping demand, it is possible that a small volume of water tapping (<0.3l) has a temperature higher than 70°C. To prevent scalding, it is recommended to install a thermostatic valve according to the following schematic:

a=boiler, b=domestic hot water from the boiler, c=cold water inlet, d=shower, e=thermostatic valve (field supply)

To connect the water piping for domestic hot water (applicable for Switzerland)

For Switzerland, domestic hot water should be made by a domestic hot water tank. The domestic hot water tank must be installed with a 3-way valve to the space heating piping. See the manual of the domestic hot water tank for more details.

Flow resistance graph for appliance domestic hot water circuit

Not applicable for Switzerland

To connect the water piping for space heating

NOTICE

To prevent leakages, do NOT rotate existing connections.

NOTICE

Mount the pipes without tension to avoid ticking sounds from the pipes.

1 Rinse the space heating installation carefully. 2 Connect the space heating outlet (a) and space heating inlet (b)

to their connections as indicated in the following illustration:

Fit the space heating installation with the following parts:

▪ A filling/draining tap in the space heating inlet, immediately

underneath the unit.

▪ A draining tap at the lowest point of the installation.

▪ An overflow valve of 3bar in the input pipe at a distance of no

more than 500 mm from the unit. Between the unit and the overflow valve there may be no valve or constriction.

▪ An expansion vessel in the space heating inlet (in the B-pack or in

the installation).

▪ If there are pipes running up, use a check valve within close

distance of the unit. This prevents a thermosiphon effect from occurring during tap water operation.

Note that the optional valve kits EKVK4A and EKVK6A can also be used to connect the space heating installation.

NOTICE

Make sure that the straight brass fitting connections are tightened thoroughly to prevent leakage. Maximum torque is 30N∙m.

To fill the domestic water circuit of the gas boiler

1 Open the main tap to pressurise the hot water section. 2 Vent the exchanger and the pipe system by opening a hot water

tap.

3 Leave the tap open until all air has disappeared from the

system.

4 Check all connections for leaks including internal connections.

A 28kW B 32kW

The minimum flow for domestic hot water operation is 2l/min. The minimum pressure is 0.1 bar. A low flow (<5 l/min) can reduce comfort. Make sure to set the setpoint high enough.

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

6.6 Connecting the electrical wiring

DANGER: RISK OF ELECTROCUTION

WARNING

ALWAYS use multicore cable for power supply cables.

Installation and operation manual

6 Installation

WARNING

Prevent hazards due to inadvertent resetting of the thermal cut-out: power to this appliance MUST NOT be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly turned ON and OFF by the utility.

NOTICE Safety thermostat (normally closed contact). The

outdoor unit does not contain a safety thermostat. Make sure to install a field-supplied safety thermostat in the heat emitter system according to the applicable legislation.

However, you cannot connect the feedback signal from the safety thermostat to the outdoor unit or gas boiler because there are no terminals for the feedback signal. Because of this, you also do not have to do any configuration on the outdoor unit or gas boiler.

In any case, to prevent unnecessary tripping of the safety thermostat, we recommend the following:

▪ The safety thermostat is automatically resettable.

▪ The safety thermostat has a maximum temperature

variation rate of 2°C/min.

▪ There is a minimum distance of 2m between the safety

thermostat and the motorized 3‑way valve delivered with the domestic hot water tank.

▪ The safety thermostat setpoint is at least 15°C greater

than the maximum leaving water temperature setpoint.

6.6.1 To connect the main power supply of the gas boiler

1 Connect the power supply cable of the gas boiler to a fuse (a)

(L: X2-2 (BRN), N: X2-4 (BLU)).

2 Connect the earthing of the gas boiler to an earthing terminal.

Result: The gas boiler performs a test. appears on the service

display. After the test, appears on the service display (wait mode). The pressure in bar is shown on the main display.

3 Enter the wiring through the bottom of the unit.

Part Description

Low voltage a Interconnection

cable between outdoor unit and gas boiler (current loop

(a)

PCB)

b Domestic hot water

tank thermistor

c Room thermostat or

heat pump convector

High voltage d Power supply Factory-mounted

e+f 3‑way valve Knockout hole

(a)

For more information on the current loop installation, read the manual in the accessory bag of the current loop.

4 If needed, remove the knock-out holes with a screwdriver and

attach the field supplied glands.

Factory-mounted cable gland

Knockout hole

Rubber grommet

cable gland

DANGER: RISK OF ELECTROCUTION

A fused spur or an unswitched socket MUST be located no more than 1m from the appliance.

CAUTION

For installation in damp rooms, a fixed connection is obligatory. When working on the electrical circuit ALWAYS isolate the electric supply.

6.6.2 To connect the electrical wiring to the gas boiler

1 Open the gas boiler. 2 Open the switch box cover of the gas boiler.

Installation and operation manual

5 Connect the wiring to the appropriate terminals. See

"13.2.1Wiring diagram: Gas boiler"[439].

6 Close the switch box cover of the gas boiler. 7 Close the gas boiler.

6.7 Connecting the gas piping

6.7.1 To connect the gas pipe

1 Connect a gas valve to the 15mm gas connection of the gas

boiler and connect it to the field pipe according to local regulations.

EHY2KOMB28+32AA

Daikin Altherma H Hybrid – Gas boiler module

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2 Install a gas mesh filter in the gas connection if the gas may be

contaminated.

3 Connect the gas boiler to the gas supply. 4 Check all parts for gas leaks on a pressure of maximum

50 mbar (500 mmH2O). There may be no stress on the gas supply connection.

6.8 Connecting the boiler to the flue gas system

WARNING

▪ Make sure that the socket connections of the flue and

air supply duct materials are correctly sealed. Improper fastening of the flue and air supply duct can lead to hazardous situations or result in personal injury.

▪ Check all flue components for tightness.

▪ Do NOT use screws or parkers to mount the flue

system as leakage can occur.

▪ Sealing rubbers can be negatively affected when

grease is applied, use water instead.

▪ Do NOT mix any components, materials or ways of

coupling from different manufacturers.

The gas boiler is delivered with a 60/100 concentric flue gas/air intake connection. Fit the concentric pipe carefully in the adapter. The built-in gaskets ensure there is an air tight seal.

An adapter piece 80/125 concentric connection is also available. Fit the concentric pipe carefully in the adapter. The built-in gaskets ensure there is an air tight seal.

INFORMATION

Carefully follow the instructions as described in the adapter set.

The concentric adapter piece is equipped with a measuring point for the gas exhaust and one for the air intake.

a Gas exhaust measuring point b Air intake measuring point

The air supply and the flue pipe can also be connected separately as a dual pipe connection. An option to change the gas boiler from a concentric to a dual pipe connection is available.

6 Installation

6.8.1 To change the gas boiler to 80/125 concentric connection

The concentric connection can be changed from Ø60/100 to Ø80/125 by an adapter set.

1 Remove the concentric pipe from the air supply and combustion

gas pipe at the top of the gas boiler by turning counterclockwise.

2 Remove the O-ring from the concentric pipe and fit it around the

flange of the concentric adapter Ø80/125.

3 Place the concentric adapter in the top of the appliance and

turn it clockwise so that the measurement nipple points straight forward.

4 Fit the concentric pipe for the air supply and combustion gas

flue into the adapter. The integral sealing ring ensures an airtight connection.

5 Check the connection of the internal flue pipe and the

condensate collector. Make sure it is properly connected.

6.8.2 To change the 60/100 concentric connection to a dual pipe connection

The concentric connection can be changed from Ø60/100 to a dual pipe connection 2× Ø80 by an adapter set.

1 Remove the concentric pipe from the air supply and combustion

gas pipe at the top of the gas boiler by turning counterclockwise.

2 Remove the O-ring from the concentric pipe and fit it around the

flange of the dual pipe adapter Ø80.

3 Place the combustion gas connection (Ø80) in the top of the

appliance and turn it clockwise so that the measurement nipple points straight forward. The integral sealing ring ensures an airtight connection.

4 Remove the lid from the air supply connection. Make sure to

properly connect the air intake. Room air dependent installation is NOT allowed.

5 Fit the pipes for the air supply and flue gas carefully in the air

inlet opening and flue gas adapter of the unit. The built-in gaskets ensure there is an air tight seal. Make sure that the connections are not mixed.

6 Check the connection of the internal flue pipe and the

condensate collector. Make sure it is properly connected.

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

6 Installation

D D

R/D=1 R/D=0.5

INFORMATION

Carefully follow the instructions as described in the adapter set.

For a dual pipe connection, all defined lengths assume a diameter of 80mm.

Sample calculation for dual pipe application

6.8.3 Calculate the total piping length

When the resistance of the flue pipe and air supply pipe increase, the appliance power will decrease. The maximum permitted reduction in power is 5%.

The resistance of the air supply pipe and combustion gas flue depends on:

▪ the length,

▪ the diameter,

▪ all components (bends, elbows,…).

The total permitted pipe length of the air supply and the combustion gas flue is indicated for each appliance category.

Equivalent length for concentric installation (60/100)

Length (m)

Bend 90° 1.5 Bend 45° 1

Equivalent length for dual pipe installation

Length (m)

R/D=1 Bend 90° 2m

Bend 45° 1m

R/D=0.5 Elbow 90° 4m

Elbow 45° 2m

Pipe Pipe length Total pipe length

Flue pipe L1+L2+L3+(2×2)m 13m Air supply L4+L5+L6+(2×2)m 12m

Installation and operation manual

Total piping length = sum of the straight pipe lengths + sum of the equivalent pipe length of bends/elbows.

6.8.4 Appliance categories and pipe lengths

Following installation methods are supported by the manufacturer.

Single boiler installation

Please note that NOT all flue gas configurations as described below are allowed in all countries. Please follow the local and national regulations.

EHY2KOMB28+32AA

Daikin Altherma H Hybrid – Gas boiler module

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6 Installation

INFORMATION

All piping lengths in the tables below are maximum equivalent piping lengths.

Explanation of the flue systems Category in accordance with CE

A flue that evacuates the products of combustion to the outside of the room containing the appliance. The combustion air is drawn directly from the room.

A flue system which is connected to a common duct system. This common duct system consists of a single natural draught flue. All pressurized parts of the appliance containing products of combustion are completely enclosed by parts of the appliance supplying combustion air. Combustion air is drawn into the appliance from the room by means of a concentric duct, which encloses the flue. The air enters through defined orifices situated in the surface of the duct.

Horizontal flue system. Discharge in the outside wall. Inlet opening for the air supply is in the same pressure zone as the discharge.

Vertical flue system. Flue gas discharge via the roof. Inlet opening for the air supply is in the same pressure zone as the discharge.

Joint air supply and flue gas discharge duct (CLV system). Twin pipe or concentric.

Separate air supply and separate flue gas discharge duct. Discharge into different pressure zones.

Free in the market available flue material with CE approval. Do NOT mix flue materials from different suppliers. Joint air supply and flue gas discharge duct (CLV system).

Discharging into different pressure zones.

Air supply and flue gas discharge duct in shaft or ducted: concentric. Air supply from existing duct. Flue gas discharge via the roof. Air supply and flue gas discharge are in the same pressure zone.

INFORMATION

The above installation examples are just examples and can differ on some details.

Make sure the air inlet is open and complies to the demands.

For example: a wall terminal through the façade.

For example: a vertical roof terminal.

—

Only as twin pipe system.

Concentric flue system between the gas boiler and the duct.

Permitted pipe lengths B23 and B33 Ø80mm:

EHY2KOMB28AA 85m 85m EHY2KOMB32AA 80m 80m

The horizontal flue MUST be installed under a 3° fall towards the boiler (50mm per metre) and MUST be supported with a minimum of 1 bracket at each meter length. Best recommended position of the bracket is just before the joint.

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

INFORMATION

Flexible flue gas lines may NOT be used in horizontal connection sections.

C13 (1) C33 (2) C13 (1) C33 (2) 60/100 60/100 Twin-80 Twin-80 L1 (m) L1 (m) L1 (m) L1 (m)

10 10 80 21

Installation and operation manual

6 Installation

0 1 2 3 4 6 75

L2=–1.8×L1+11.8

C13 (1) C33 (2) C93 (4) C53 (3) 80/125 80/125 80/125 80 60/100 60 L1 (m) L1 (m) L1 (m) L2 (m) L1 (m) L2 (m)

29 29 10 25 6 1

1 10

Special remark regarding C53: The maximum lengths for L1 and L2 are related to each other. First determine the length of L1; then make use of the graph below to determine the maximum length of L2. For example: if the length of L1 is 2m, L2 can maximally be 8m long.

INFORMATION

Flexible flue gas lines may NOT be used in horizontal connection sections.

INFORMATION

The maximum lengths in the table below apply to each gas boiler separately.

C83 (6) C43 (5)

Twin-80 60/100 80/125 Twin-80

L1+L2 (m) L1 (m) L1 (m) L1+L2 (m)

80 10 29 80

Special remark regarding C83: See the table below for the minimum diameters of the combined gas exhaust system.

Number of units Minimum Ø

2 130 3 150 4 180 5 200 6 220 7 230 8 250

9 270 10 280 11 290 12 300

Multi-boiler installation

INFORMATION

All piping lengths in the tables below are maximum equivalent piping lengths.

Installation and operation manual

Special remark regarding C43: See the table below for the minimum diameters of the combined gas exhaust/air intake system.

For EHY2KOMB28AA:

Number of

units

Concentric Dual pipe

Gas

exhaust

Air intake Gas

exhaust

Air intake

2 135 253 135 214 3 157 295 157 249 4 166 311 166 263 5 175 328 175 278 6 184 345 184 292 7 193 362 193 306 8 201 376 201 318

9 210 393 210 332 10 219 410 219 347 11 228 427 228 361 12 237 444 237 375 13 246 461 246 389 14 255 478 255 404 15 264 494 264 418 16 272 509 272 431 17 281 526 281 445 18 290 543 290 459 19 299 560 299 473 20 308 577 308 488

For EHY2KOMB32AA:

Number of

units

Concentric Dual pipe

Gas

exhaust

Air intake Gas

exhaust

2 155 291 155 246

Daikin Altherma H Hybrid – Gas boiler module

4P538953-1B – 2020.10

Air intake

EHY2KOMB28+32AA

6 Installation

D BG BA HR HU SK SICZ ES PT PL GR CY IE TR MT LTLT LV UK FR B

Daikin

(b) (a)(a) (a) (b)

IT CH

(b)

T2 T2

Number of

units

Concentric Dual pipe

Gas

exhaust

Air intake Gas

exhaust

Air intake

3 166 311 166 263 4 176 330 176 279 5 186 349 186 295 6 196 367 196 311 7 206 386 206 326 8 216 404 216 342

9 226 423 226 358 10 236 442 236 374 11 247 463 247 391 12 257 482 257 407 13 267 500 267 423 14 277 519 277 439 15 287 538 287 454 16 297 556 297 470 17 307 575 307 486 18 317 594 317 502 19 328 614 328 519 20 338 633 338 535

Special remark regarding C93: The minimum inner dimensions of the chimney have to be 200×200mm.

6.8.5 Applicable materials

Materials for the installation of the gas exhaust and/or air intake MUST be bought according to the table below.

a Gas exhaust/air intake parts can be bought from a third

party. All parts purchased from an external supplier MUST comply with EN14471.

b NOT allowed.

6.8.6 Flue pipe position

See the local and national regulations.

Especially for UK:

Only use flue products approved by the boiler manufacturer, which can be bought from the supplier of your boiler.

See "5.2Combining units and options"[49].

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Terminal position Minimum

distance (mm)

A Directly below an open able window or

300

other opening (e.g. air brick) B Below gutters, soil pipes or drain pipes 75 C Below eaves 200 D Below balconies or car front roofs E From vertical drain pipes and soil pipe 150 F From internal or external corners 300 G Above ground, roof or balcony level H From a surface facing a terminal 600 I From a terminal discharging towards

1200

another terminal J From an opening in a car port (e.g.

door, window) into a dwelling K Vertically from a terminal on the same

1500

wall L Horizontally from a terminal on the

300

same wall M Above an opening, air brick, opening

windows, etc. N Horizontally to an opening, air brick,

opening windows, etc. P Above roof level (to base terminal) Q From an adjacent wall to flue R From an adjacent opening window 1000

Installation and operation manual

6 Installation

Terminal position Minimum

distance (mm)

S From another roof terminal 600

- From an external boundary. Note: If the terminal is facing a boundary, it is recommended that an anti-plume kit be fitted.

6.8.7 Insulation of the gas exhaust and air

Condensation may occur on the outside of the pipe material when the material temperature is low and the environment temperature is high with a high humidity. Use 10mm damp-proof insulation material when there is a risk of condensation.

6.8.8 Fitting a horizontal flue system

The 60/100mm horizontal flue system may be extended up to a maximum length as specified in the table indicating the maximum pipe lengths. Calculate the equivalent length according to the specifications in this manual.

Terminals adjacent to windows or openings on pitched and flat roofs: The flue should NOT penetrate this area.

NOTICE

The boiler manufacturer cannot be held responsible for atmospheric conditions when siting flue terminals.

CAUTION

Once the flue system has been installed and the appliance commissioned, the installer should observe the plume direction. Particular attention should be drawn to plume vapour reentering the gas boiler via the air intake. If this occurs, it is highly possible the flue is fitted with a negative pressure area and therefore a plume management kit MUST be fitted.

2000

600

intake

CAUTION

Read the installation manuals of the field supplied parts.

INFORMATION

Flexible flue gas lines may NOT be used in horizontal connection sections.

6.8.10 Plume management kit

See the local and national regulations.

Especially for UK:

The plume management kit comprises of a 710 mm horizontal section elbow to connect the 500 mm vertical condensing tube, which has a horizontal or vertical terminal dependant on your requirements. The maximum length of the horizontal flue including the terminal but excluding the initial elbow from the boiler and 500mm vertical condensing tube is 7m.

NOTICE

For each additional 90° elbow used the maximum flue length MUST be reduced by 1.5m whilst the use of 2× 45° bends warrants a reduction of 2m.

The horizontal part of the flue MUST be installed under a 3° fall towards the boiler (5 mm per m) and MUST be supported with a minimum of 1 bracket at each 1 m length. Best recommended position of the bracket is just before the joint.

CAUTION

▪ Sealing rings should ONLY be moisturized with water

before use. Do NOT use soap or other detergents.

▪ When installing flues in voids, make sure that they are

connected and fixed correctly. If in an existing situation a visual inspection is NOT possible, the boiler must NOT be commissioned and remain disconnected from the gas supply until suitable access has been realised.

▪ Make sure to follow the manufacturer’s instructions

regarding maximum length of the flue system, the appropriate flue material, correct jointing methods and the maximum distance between flue support.

▪ Make sure that all joints and seams are gastight and

watertight.

▪ Make sure that the flue system has a uniform gradient

back to the boiler.

6.8.9 Fitting a vertical flue system

A vertical 60/100mm flue kit is also available. By using additional components available from your boiler supplier, the kit can be extended up to a maximum length as specified in the table indicating the maximum pipe lengths (excluding the initial boiler connection).

CAUTION

Read the installation manuals of the field supplied parts.

Installation and operation manual

Daikin Altherma H Hybrid – Gas boiler module

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4P538953-1B – 2020.10

6.8.11 Flues in voids

0000

PY: 2017

EN 14471 : 2013 T120 H1 W 1/2 O(00) LE E U0

0000

PY: 2017

EN 14471 : 2013 T120 H1 W 1/2 O(00) LE E U0

Especially for UK:

The flue system must be connected in accordance with the manufacturer instructions before firing the boiler.

The term void includes ceiling voids, floor voids, purpose built enclosures, service risers, roof spaces or any other enclosure that will restrict access to inspect the flue.

To allow visual inspection, without reliance on devices such as endoscopes, cameras and mirrors, inspection hatches must be provided along the entire length of the flue.

Hatches must be a minimum of 300mm×300mm and positioned with the edge of the inspection hatch to 1.5 m of any joint and at changes of direction. Bends should be viewable from both directions where the inspection hatch cannot be positioned at the bend.

Where suitable access is not provided the appliance must NOT be commissioned and must be disconnected from the gas supply.

Additionally the entire flue and all flue seals must be installed in accordance with the requirements of BS5440:

▪ Check if the condensate trap is filled with water and correctly

connected to the boiler.

▪ All flue joints are correctly made, unstressed and adequately

supported.

▪ All parts of the flue can be visually inspected. Ensure suitable

access where flue is positioned within voids.

6.8.12 Flue gas materials (C63) available on the market

The properties of the combustion determine the choices for the flue material. The standards EN 1443 and EN 1856‑1 provide the necessary information for choosing the flow material by means of a sticker including an identification string. The identification string needs to contain the following information:

6 Installation

a CE marking b In case of metal, the standard must comply to

EN1856-2. In case of plastic, the standard must comply to EN14471

c Temperature class: T120 d Pressure class: Pressure (P) or high pressure (H1) e Resistance class: Wet (W)

f Resistance class in case of fire: E

Dimensions C63 of the flue system (external dimensions in mm)

Parallel Concentric 80/125 Concentric 60/100

Flue pipe Air inlet Flue pipe Air inlet

Ø80

(+0.3 / –0.7)

WARNING

Flue materials of different markings must NOT be combined.

6.8.13 About securing the flue system

CAUTION

▪ These regulations are typical for both concentric and

▪ The flue system MUST be secured to a solid structure.

▪ The flue system should have a continuous fall back to

▪ Only use accompanying brackets.

▪ Every elbow MUST be secured by using the bracket.

▪ Every extension MUST be secured per meter with a

▪ Make sure that the bracket is locked into the correct

▪ Do NOT mix flue parts or clamps of different suppliers.

Ø80

(+0.3 / –0.7)

Ø125

(+2 / –0)

Ø60

(+0.3 / –0.7)

Ø100

(+2 / –0)

parallel flue systems.

the boiler (1.5°~3°). Wall terminals MUST be installed levelled.

Exception at connecting on boiler: if the length of the pipes before and after the first elbow is ≤250 mm, the second element after the first elbow has to contain a bracket. The bracket MUST be positioned on the elbow.

bracket. This bracket MUST not be clamped around the pipe ensuring free movement of the pipe.

position depending on the position of the bracket on the pipe or elbow.

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

6 Installation

≤1000 mm

≤2000 mm

≤1000 mm

≤250 mm

≥3° (50 mm/m)

≤1000 mm

≤500 mm

Which fixation position to use

a In case of fixation to a pipe

b In case of fixation to a sleeve

Maximum distance between clamps

Vertical position of pipe Other position of pipe

2000mm 1000mm

▪ Divide the length between the brackets evenly.

▪ Every system MUST contain at least 1 bracket.

▪ Position the first clamp at a maximum of 500 mm from the

gasboiler.

a Second clamp after the second elbow b First clamp after the second elbow

Installation and operation manual

EHY2KOMB28+32AA

Daikin Altherma H Hybrid – Gas boiler module

4P538953-1B – 2020.10

7 Configuration

1 2 75 63 4 8

a b c fed

6.9 Finishing the gas boiler installation

6.9.1 To perform an air purge on the gas supply

1 Turn once the screw counterclockwise.

Result: Gas supply will purge air. 2 Check all connections for leakage. 3 Check the gas supply pressure.

INFORMATION

Make sure the working inlet pressure does NOT interfere with other gas appliances installed.

6.9.3 To install the cover plate

The boiler cover plate is an optional product.

7 Configuration

7.1 Gas boiler

7.1.1 Overview: Configuration

6.9.2 To close the gas boiler

1 Hook the top of the front panel into the top of the gas boiler.

2 Tilt the bottom side of the front panel towards the gas boiler. 3 Screw both screws of the cover. 4 Close the display cover.

Read out 1 On/OFF 2 Main display 3 Space heating operation 4 Domestic hot water operation 5 Domestic hot water comfort function eco 6 Domestic hot water comfort function on (continuous) 7 Service display 8 Flashes to indicate a fault

Operation a On/OFF button b One single room c button d button e Service button

f Reset button

7.1.2 Basic configuration

To turn on/off the gas boiler

1 Push the button.

Result: The green LED above the button will light up when the

boiler is ON.

When the gas boiler is OFF, is displayed on the service display to indicate that the power is ON. In this mode, the pressure in the space heating installation will also be displayed on the main display (bar).

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

7 Configuration

Domestic hot water comfort function

Not applicable for Switzerland

This function can be operated with the domestic hot water comfort key ( ). The following functions are available:

▪ On: The LED lights up. The domestic hot water comfort function

is switched on. The heat exchanger will be kept on temperature to assure instant delivery of hot water.

▪ Eco: The LED lights up. The domestic hot water comfort

function is self-learning. The appliance will learn to adapt to the pattern of use of hot tap water. For example: the temperature of the heat exchanger will NOT be maintained during the night or in case of long absence.

▪ Off: Both LED's are OFF. The temperature of the heat exchanger

is NOT maintained. For example: It will take a while to deliver hot water to the hot water taps. If there is no need for immediate hot water delivery, the domestic hot water comfort function can be turned off.

To reset the gas boiler

INFORMATION

Resetting is only possible when an error occurs.

Prerequisite: Flashing LED above the button and an error code on the main display.

Prerequisite: Check the meaning of the error code (see "Error

codes of the gas boiler"[436]) and resolve the cause.

1 Press to restart the gas boiler.

Maximum space heating supply temperature

See the user reference guide for more details.

Domestic hot water temperature

See the user reference guide for more details.

In case of heating only models, this function can be deactivated through the parameter settings of the gas boiler.

INFORMATION

Do NOT deactivate the keep hot function if the gas boiler is connected to a reversible indoor unit. It is recommended to always deactivate the keep hot function if the gas boiler is connected to a heating only indoor unit.

It is recommended to always deactivate the keep hot function.

Frost protection function

The boiler is equipped with an internal frost protection function that automatically operates when necessary, even if the boiler is turned off. If the heat exchanger temperature drops too low, the burner will switch on until the temperature is sufficiently high again. When frost protection is active, is displayed on the service display.

To set the parameters via the service code

The gas boiler is factory set in accordance with the default settings. Take into account the remarks in the table below when changing the parameters.

1 Press simultaneously on and until appears on the main

and the service display.

2 Use the and buttons to set (service code) on the main

display.

3 Press the button to set the parameter on the service display. 4 Use the and buttons to set the parameter to the desired

value on the service display.

5 When all settings are done, press until appears on the

service display.

Result: The gas boiler has now been reprogrammed.

INFORMATION

Keep hot function

The reversible heat pump features a keep hot function that keeps the heat exchanger hot continuously to prevent sweat from occurring in the gas boiler switch box.

Parameters on the gas boiler

Parameter Setting Range Default

Service code — — To access the installer settings, enter

Installation type 0~3 0 ▪ 0=Combi

Space heating pump continuous 0~3 0 ▪ 0=Post purge period only

▪ Press the button to exit the menu without storing the

parameter changes.

▪ Press the button to load the default settings of the

gas boiler.

Description

settings

the service code (=15)

▪ 1=Heating only + external domestic

hot water tank

▪ 2=Domestic hot water only (no

heating system required)

▪ 3=Heating only

It is recommended not to modify this setting.

▪ 1=Pump continuously active

▪ 2=Pump continuously active with

MIT switch

▪ 3=Pump on with external switch

This setting has no effect.

Installation and operation manual

Daikin Altherma H Hybrid – Gas boiler module

EHY2KOMB28+32AA

4P538953-1B – 2020.10

7 Configuration

Parameter Setting Range Default

settings

Maximum space heating power set ~85% 60% Maximum power in heating. This is a

. Maximum capacity space heating

pump Maximum domestic hot water power

set

(not applicable for Switzerland)

Minimum supply temperature of the heat curve

. Maximum supply temperature of the

heat curve Minimum outside temperature of the

heat curve Maximum outside temperature of the

heat curve Space heating pump post purge period 0~15min 0min Changing this setting has no effect on

Space heating pump post purge period after domestic hot water operation

Position 3-way valve or electric valve 0~3 0 ▪ 0=Not inverted

Booster 0~1 0 Changing this setting has no effect on

Step modulation 0~1 1 ▪ 0=OFF during space heating

Minimal space heating rpm 23%~50% 30% Adjustment range 23~50%.

. Minimum capacity space heating pump — 40 There is no space heating pump in the

Minimal domestic hot water rpm

(not applicable for Switzerland)

. Reversible setting 0~1 0 This setting activates the keep hot

Start rpm space heating 50%~99% 50% This is the fan rpm before heating

. Start rpm domestic hot water

(not applicable for Switzerland)

— 80 The setting is controlled by the heat

~100% 100% Maximum power in instant domestic

10°C~25°C 25°C Do NOT modify this setting on the

30°C~90°C 90°C Do NOT modify this setting on the

–30°C~10°C –7°C Do NOT modify this setting on the

15°C~30°C 25°C Do NOT modify this setting on the

0~15min 0min Changing this setting has no effect on

23%~50% 25% Adjustment range 23~50%

50%~99% 50% Do not modify this setting.

Description

percentage of the maximum set in parameter . We strongly recommend not modifying this setting.

pump.

hot water. This is a percentage of the maximum set in parameter . Because of the 2-digit display, the highest displayable value is 99. It is however possible to set this parameter to 100% (default setting). We strongly recommend not modifying this setting.

boiler. Use the user interface instead.

the operation of the unit.

▪ 1=Inverted

▪ 2 and higher=Not applicable

the operation of the unit.

operation

▪ 1=ON during space heating

operation

It is recommended not to modify this setting.

It is recommended not to modify this setting in case of natural gas.

gas boiler. Changing this setting has no effect.

(40=propane).

It is recommended not to modify this setting in case of natural gas.

function of the gas boiler. It is only used with reversible heat pump models and should NEVER be deactivated. It MUST be deactivated for heating only models (set to 0).

▪ 0=disabled

▪ 1=enabled

ignition. It is recommended not to modify this setting.

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

7 Configuration

Parameter Setting Range Default

settings

Maximum fan rpm 45~50 EHY2KOMB28

AA: 48

EHY2KOMB32

AA: 50

Legionella protection (only when external hot water tank is connected)

Set point space heating (flow temperature) during heating external domestic hot water tank

. Comfort temperature 0°C / 40°C~65°C 0°C Temperature used for eco/comfort

. Waiting time after a space heating

demand from a thermostat. Waiting time after a domestic hot water

demand before a space heating demand is answered.

. Number of eco days. 1~10 3 Number of eco days.

Anti-cycling period during space heating operation

. Reference value for domestic hot water 24-30-36 36 ▪ 24: Not applicable.

Summer mode 1~3 0 ▪ 0=Summer mode deactivated

Heating curve coefficient 0 0 Not applicable

0~2 0 ▪ 0=Not active

60°C~90°C 85°C Do NOT modify this setting on the

0min~15min 0min Changing this setting has no effect on

0min~15min 0min Amount of time the boiler waits before

0min~15min 5min Minimal switch-off time in space

Description

Use this parameter to set the maximum fan rpm. It is recommended not to modify this setting.

▪ 1=Active 1 time per week

▪ 2=Active 1 time per day

boiler. Use the user interface instead.

function. When the value is 0°C, the eco/comfort temperature is the same as the domestic hot water setpoint. Otherwise, the eco/comfort temperature is between 40°C and 65°C.

the operation of the unit.

answering a space heating demand after a domestic hot water demand.

heating operation. It is recommended not to modify this setting.

▪ 30: Only for EHY2KOMB28AA

▪ 36: Only for EHY2KOMB32AA

▪ 1=Summer mode to be activated

with button (code on display=Su)

▪ 2=Summer mode to be activated

with button (code on display=So)

▪ 3=Summer mode to be activated

with button (code on display=Et)

Maximum space heating power setting

The maximum space heating power setting ( ) is factory set to 70%. If more or less power is required, you can change the fan rpm. The table below shows the relationship between the fan rpm and the appliance power. It is strongly recommended NOT to modify this setting.

Desired power (kW) Setting on service

EHY2KOMB28AA EHY2KOMB32AA

23.1 26.6 85

20.1 22.4 70

17.4 19.2 60

14.6 16.0 50

11.8 12.8 40

7.7 8.0 25

A minimum flow rate must be guaranteed so that the boiler does not go in high temperature error. This can be maintained by opening the radiator valves if there are any closed, or adding an appropriate bypass way in between space heating outlet and space heating inlet of the boiler if thermostatic valves are fitted to all radiators.

Installation and operation manual

display (% of max.

rpm)

Minimum required flow rate values for corresponding set powers are given in the table below.

Minimum flow rate

(l/min)

2.6 5.4kW

4.0 8.5kW

8.5 17.8kW

12.5 26.2kW

Note that for the gas boiler the power during burning is increased slowly and is reduced as soon as the supply temperature is reached.

Set power (kW)

Frost protection function

Daikin Altherma H Hybrid – Gas boiler module

EHY2KOMB28+32AA

4P538953-1B – 2020.10

To change to a different type of gas

c d

CAUTION

Work on gas carrying parts may ONLY be carried out by a qualified competent person. ALWAYS comply with local and national regulations. The gas valve is sealed. In Belgium, any modifications to the gas valve MUST be performed by a certified representative of the manufacturer. For more information, contact your dealer.

If a different type of gas is connected to the appliance than that for which the appliance has been set by the manufacturer, the gas metering MUST be replaced. Conversion sets for other types of gas are available to order. See "5.2.1 Possible options for the gas

boiler"[49].

1 Switch the boiler off and isolate the boiler from the mains

power.

2 Close the gas tap. 3 Remove the front panel from the appliance. 4 Unscrew the coupling (a) above the gas valve and twist the gas

mixing tube towards the rear (b).

5 Replace the O-ring (c) and the gas restriction (d) with the rings

from the conversion set.

6 Reassemble in reverse sequence. 7 Open the gas tap. 8 Check the gas connections before the gas valve for

gastightness.

9 Switch on the mains power. 10 Check the gas connections after the gas valve for gastightness

(during operation).

11 Now check the setting of the CO2 percentage at high setting (

in display) and low setting ( in display).

12 Put a sticker indicating the new gas type on the bottom of the

gas boiler, next to the nameplate.

13 Put a sticker indicating the new gas type next to the gas valve,

over the existing one.

14 Put the front panel back in its place.

7 Configuration

a Coupling b Gas mixing tube c O-ring d Gas metering ring

INFORMATION

The gas boiler is configured for operation with gas type G20 (20 mbar). However, if the gas type present is G25 (25 mbar), the gas boiler can still be operated without modification.

About the CO₂ setting

The CO2 setting has been set in the factory and in principle requires no adjustments. The setting can be checked by measuring the CO percentage in the combustion gases. In case of possible disturbance of the adjustment, replacement of the gas valve or conversion to another gas type the adjustment must be checked and if necessary set according to the instructions below.

Always check the CO2 percentage when the cover is open.

To check the CO₂ setting

1 Switch off the heat pump module with the user interface. 2 Switch off the gas boiler with the button. appears on the

service display.

3 Remove the front panel from the gas boiler. 4 Remove the sampling point (a) and insert a suitable flue gas

analyser probe.

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

7 Configuration

INFORMATION

Make sure the start-up procedure of the analyser is completed before inserting the probe into the sampling point.

INFORMATION

Allow the gas boiler to operate steadily. Connecting the measuring probe before stable operation can give incorrect readings. It is recommended to wait at least 30minutes.

5 Switch on the gas boiler with the button and create a space

heating demand.

6 Select High setting by simultaneously pressing and twice.

Capital will appear on the service display. The user interface will display Busy. Do NOT test when lowercase is displayed. If this is the case, press and again.

7 Allow readings to stabilise. Wait for at least 3 minutes and

compare the CO2 percentage with the values in the table below.

CO2 value at maximum power

Maximum value 9.6 8.3 10.8 Minimum value 8.6 7.3 9.8

8 Note down the CO2 percentage at maximum power. This is

important with regard to the next steps.

CAUTION

It is NOT possible to adjust the CO2 percentage when test program is running. When the CO2 percentage deviates from the values in the table above, please contact your local service department.

9 Select Low setting by simultaneously pressing and buttons

once. will appear on the service display. The user interface will display Busy.

10 Allow readings to stabilise. Wait for at least 3 minutes and

compare the CO2 percentage with the values in the table below.

CO2 value at maximum power

Maximum value Minimum value 8.4 7.4 9.4

(a)

CO2 value at maximum power recorded at High setting.

11 If the CO2 percentage at maximum and minimum power is

within the range expressed in the tables above, the CO2 setting of the boiler is correct. If NOT, adjust the CO2 setting according to the instructions in the chapter below.

Natural gas

G20

Natural gas

G20

Natural gas

G25

Natural gas

G25

(a)

Propane P

G31

Propane P

G31

12 Switch off the appliance by pressing the button and put the

sampling point back in its place. Make sure it is gastight.

13 Put the front panel back in its place.

CAUTION

Work on gas carrying parts may only be carried out by a qualified competent person.

To adjust the CO₂ setting

INFORMATION

Only adjust the CO2 setting when you have checked it first and are sure adjustment is necessary. In Belgium, any modifications to the gas valve MUST be performed by a certified representative of the manufacturer. For more information, contact your dealer.

1 Remove the cap that covers the adjustment screw. In the

illustration, the cover cap is already removed.

2 Turn the screw (a) to increase (clockwise) or decrease

(counterclockwise) the CO2 percentage. See the table below for the desired value.

a Adjusting screw with cover

Measured value at maximum power

Adjustment values CO2 (%) at minimum power (front cover opened)

Natural gas 2H/2E (G20, 20mbar)

Propane 3P (G31, 30/50/37mbar)

10.8 — 10.5±0.1

10.6 10.3±0.1

10.4 10.1±0.1

10.2 9.9±0.1

10.0 9.8±0.1

9.8 9.6±0.1

9.6 9.0±0.1 —

9.4 8.9±0.1

9.2 8.8±0.1

9.0 8.7±0.1

8.8 8.6±0.1

8.6 8.5±0.1

3 After measuring the CO2 percentage and adjusting the setting,

put the cover cap and the sampling point back in their place. Make sure they are gastight.

4 Select High setting by simultaneously pressing and twice.

Capital will appear on the service display.

5 Measure the CO2 percentage. If the CO2 percentage still

deviates from the values in the table indicating the CO percentage at maximum power, contact your local dealer.

6 Press and simultaneously to exit the test program. 7 Put the front panel back in its place.

Installation and operation manual

Daikin Altherma H Hybrid – Gas boiler module

EHY2KOMB28+32AA

4P538953-1B – 2020.10

8 Operation

8.1 Overview: Operation

The gas boiler is a modulating, high-efficiency boiler. This means that the power is adjusted in line with the desired heat requirement. The aluminium heat exchanger has 2 separate copper circuits. As a result of the separately constructed circuits for space heating and domestic hot water, the heating and the hot water supply can operate independently, but not simultaneously.

The gas boiler has an electronic boiler controller which does the following when heating or hot water supply is required:

▪ starting the fan,

▪ opening the gas valve,

▪ igniting the burner,

▪ constantly monitoring and controlling the flame.

It is possible to use the domestic hot water circuit of the gas boiler without connecting and filling the space heating system.

8.2 Heating

Heating is controlled by the outdoor unit. The boiler will start-up the heating process when there is a request from the outdoor unit.

INFORMATION

For third-party gas boilers, prolonged boiler operation at low outdoor temperatures might be temporarily interrupted to protect the outdoor unit and water piping from freezing. During this temporary interruption the boiler might appear to be off.

8.3 Domestic hot water

Not applicable for Switzerland

Instant domestic hot water is supplied by the boiler. When a simultaneous demand of space heating and domestic hot water occurs, domestic hot water has priority over space heating.

This manual only explains the domestic hot water making without having a domestic hot water tank combined with the system. For the operation and needed settings of domestic hot water in combination with a domestic hot water tank needed for Switzerland, please see the manual of the heat pump module.

INFORMATION

For EHY2KOMB28+32AA, prolonged instant domestic hot water operation at low outdoor temperatures might be temporarily interrupted to protect the outdoor unit and water piping from freezing.

8.4 Operation modes

The following codes on the service display indicate the following operating modes.

Off

The gas boiler is out of operation but is supplied with electric power. There will be no response on space heating and/or domestic hot water demands. Frost protection is active. This means that the exchanger is heated up if the water temperature in the gas boiler is too low. If applicable, the keep hot function will also be active.

If frost protection or keep hot function is activated, will be displayed (heating the exchanger). In this mode, the pressure (bar) in the space heating installation can be read on the main display.

Waiting mode (blank service display)

The LED at the button is lit and possibly also one of the LEDs for the domestic hot water comfort function. The gas boiler is waiting for a space heating and/or domestic hot water demand.

Pump overrun of space heating

After each space heating operation, the pump continues to run. This function is controlled by the outdoor unit.

Boiler shutdown when the required temperature is reached

The boiler controller can temporarily stop the requested space heating demand. The burner will stop. The shutdown occurs because the requested temperature is reached. When the temperature drops too fast and the anti-cycle time has passed, the shutdown will be cancelled.

Self-test

The sensors check the boiler controller. During the check-up, the boiler controller does NOT perform any other tasks.

Ventilation

When the appliance is started, the fan goes to starting speed. When the starting speed is reached, the burner is lit. The code will also be visible when post-ventilation is taking place after the burner has stopped.

Ignition

When the fan has reached its starting speed, the burner is ignited by means of electric sparks. During ignition the code will be visible on the service display. If the burner does NOT ignite, a new ignition attempt occurs after 15 seconds. If after 4 ignition attempts the burner is NOT yet burning, the boiler will go into fault mode.

Domestic hot water operation

Not applicable for Switzerland

The domestic hot water supply has priority over space heating performed by the gas boiler. If the flow sensor detects a domestic hot water demand of more than 2l/min, space heating by the gas boiler will be interrupted. After the fan has reached speed code and ignition is done, the boiler controller goes into domestic hot water mode.

During the domestic hot water operation, the fan speed and hence the appliance power are controlled by the gas boiler controller so that the domestic hot water temperature reaches the domestic hot water temperature setting.

The domestic hot water supply temperature must be set on the user interface of the hybrid module. See the user reference guide for more details.

Domestic hot water comfort function/Frost protection/Keep

hot function

Not applicable for Switzerland

appears on the display when either the domestic hot water comfort function, the frost protection function or the keep hot function is active.

space heating operation

When a space heating request is received from the outdoor unit, the fan is started, followed by the ignition, and the space heating operation mode. During the space heating operation, the fan speed and hence the appliance power are controlled by the gas boiler controller so that the space heating water temperature reaches the desired space heating supply temperature. During the space heating operation, the requested space heating supply temperature is indicated on the operating panel.

The space heating supply temperature must be set on the user interface of the hybrid module. See the user reference guide for more details.

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

9 Commissioning

Especially for UK:

At the time of commissioning, complete all relevant sections of the Benchmark Checklist on the backpages of this document.

9.1 To perform a gas pressure test

1 Connect a suitable gauge on the gas valve. Static pressure

MUST be 20mbar.

Program Button combination Display

Stop test program and Actual situation

NOTICE

If an 81‑04 error occurs, then do NOT perform a test run on the gas boiler.

10 Maintenance and service

Especially for UK:

After servicing, complete the relevant Service Interval Record section of the Benchmark Checklist located on the backpages of this document.

NOTICE

Maintenance MUST be done by an authorized installer or service agent.

We recommend performing maintenance at least once a year. However, applicable legislation might require shorter maintenance intervals.

10.1 Maintenance safety precautions

DANGER: RISK OF ELECTROCUTION

2 Select test program " ". See "9.2To perform a test run on the

gas boiler" [432]. Static pressure MUST be 20 mbar (+ or –

1 mbar). If the working pressure is <19 mbar, the gas boiler output will be reduced and the correct combustion reading may NOT be obtained. Do NOT adjust the air and/or gas ratio. To obtain sufficient working pressure, gas supply MUST be correct.

INFORMATION

Make sure the working inlet pressure does NOT interfere with other gas appliances installed.

9.2 To perform a test run on the gas boiler

The gas boiler has a test run function. Activating this function results in the activation of the gas boiler (pump starts and fan starts with a fixed speed), without the control functions being actuated. The safety functions remain active. The test run can be stopped by pressing and simultaneously or will end automatically after 10minutes. To perform a test run, switch off the system with the user interface.

Make sure that the leaving water temperature home page, room temperature home page, and domestic hot water home page are turned OFF.

There may be no error on the gas boiler or the heat pump module. During a gas boiler test run, "busy" will be displayed on the user interface.

Program Button combination Display

Burner ON at minimum power

Burner ON, maximum space heating power setting

Burner ON, maximum domestic hot water setting

and

and (1×)

and (2×)

DANGER: RISK OF BURNING/SCALDING

NOTICE:Risk of electrostatic discharge

Before performing any maintenance or service work, touch a metal part of the unit in order to eliminate static electricity and to protect the PCB.

10.1.1 Opening the gas boiler

See "6.1.1To open the gas boiler"[412].

10.2 To disassemble the gas boiler

1 Turn off the appliance. 2 Turn off the main power supply of the appliance. 3 Close the gas tap. 4 Remove the front panel. 5 Wait until the appliance has cooled down. 6 Unscrew the coupling nut at the base of the flue pipe by turning

counterclockwise.

Installation and operation manual

Daikin Altherma H Hybrid – Gas boiler module

EHY2KOMB28+32AA

4P538953-1B – 2020.10

7 Slide the flue pipe upwards by turning it clockwise until the

bottom of the pipe is above the condensate drain pan connection.

10 Maintenance and service

8 Pull the bottom of the pipe forwards and remove the pipe

downwards by turning the pipe alternately clockwise and counterclockwise.

9 Lift the condensate drain pan on the left-hand side from the

connection to the condensate trap.

10 Turn it to the right with the condensate trap connection over the

edge of the base tray.

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

10 Maintenance and service

11 Push the backside of the condensate drain pan downwards

from the connection to the heat exchanger and remove it.

10.4 To assemble the gas boiler

CAUTION

▪ During maintenance, the front plate seal MUST be

replaced.

▪ When assembling, check the other seals for damage,

such as hardening, (hairline) fracture and discoloration.

▪ If necessary, place a new seal and check the correct

positioning.

▪ If retarders are not or incorrectly fitted, it may lead to

serious damage.

1 Check the correct position of the seal around the front cover. 2 Place the front cover on the heat exchanger and secure by

using the socket head screws plus serrated lock washers.

3 Tighten the socket head screws equally hand-tight by turning

the hex key clockwise.

4 Fit the gas connection below the gas valve. 5 Fit the connector to the fan and the ignition unit to the gas

valve.

6 Fit the condensate drain by sliding on the exchanger outlet

stump with the condensate trap connection still in front of the base tray.

12 Remove the connector from the fan and the ignition unit from

the gas valve.

13 Unscrew the coupling below the gas valve. 14 Unscrew the socket head screws from the front cover and

remove the socket complete with gas valve and fan to the front.

NOTICE

Make sure that the burner, insulation plate, gas valve, gas supply and fan do NOT get damaged.

7 Turn the condensate drain to the left and push it downwards

into the condensate trap connection. Make sure in doing this that the back of the condensate drain pan comes to rest on the lug of the back of the base tray.

a Base tray

10.3 To clean the inside of the gas boiler

1 Clean the heat exchanger from top to bottom with a plastic

brush or compressed air.

2 Clean the underside of the heat exchanger. 3 Clean the condensate drain pan with water. 4 Clean the condensate trap with water.

Installation and operation manual

Daikin Altherma H Hybrid – Gas boiler module

EHY2KOMB28+32AA

4P538953-1B – 2020.10

8 Fill the condensate trap with water and fit it to the connection

28.3~30.2 mm

below the condensate drain pan.

9 Slide the flue pipe, turning it counterclockwise, with the top

around the flue adapter into the top cover.

10 Insert the bottom into the condensate drain pan and tighten the

coupling nut clockwise.

11 Open the gas tap and check the gas connections below the gas

valve and on the mounting bracket for leakage.

12 Check the space heating and the water pipes for leakages. 13 Turn on the main power supply. 14 Turn on the appliance by pushing the button. 15 Check the front cover, the fan connection on the front cover and

the flue pipe components for leakage.

16 Check the gas/air adjustment. 17 Fit the casing, tighten the 2 screws on the left and right side of

the display.

18 Close the display cover. 19 Check the heating and hot water supply.

11 Troubleshooting

11.1 General guidelines

Before starting the troubleshooting procedure, carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring.

11.2 Precautions when troubleshooting

WARNING

▪ When carrying out an inspection on the switch box of

the unit, ALWAYS make sure that the unit is disconnected from the mains. Turn off the respective circuit breaker.

▪ When a safety device was activated, stop the unit and

find out why the safety device was activated before resetting it. NEVER shunt safety devices or change their values to a value other than the factory default setting. If you are unable to find the cause of the problem, call your dealer.

11 Troubleshooting

WARNING

DANGER: RISK OF BURNING/SCALDING

11.3 Solving problems based on symptoms

11.3.1 Symptom: The burner does NOT ignite

Possible causes Corrective action

Gas tap is closed. Open the gas tap. Air in the gas tap. Remove air from the gas pipe. Gas supply pressure too low. Contact the gas supply company. No ignition. Replace the ignition electrode. No spark. Ignition unit on gas

valve faulty.

Gas/air adjustment NOT correctly set.

Fan faulty. ▪ Check the wiring.

Fan dirty. Clean the fan. Gas valve faulty. ▪ Replace the gas valve.

11.3.2 Symptom: The burner ignites noisily

Possible causes Corrective action

Gas supply pressure too high. The house pressure switch may

Incorrect ignition gap. ▪ Replace the ignition pin.

Gas/air adjustment NOT correctly set.

Weak spark. Check the ignition gap.

a Spark gap (±4.5mm)

▪ Check the cabling.

▪ Check the spark plug cap.

▪ Replace the ignition unit. Check the adjustment. See "To

check the CO₂ setting"[429].

▪ Check the fuse. If necessary,

replace the fan.

▪ Re-adjust the gas valve, see

"To check the CO₂ setting"[429].

be faulty. Contact the gas company.

▪ Check the ignition electrode

gap.

Check the setting. See "To check

the CO₂ setting"[429].

Replace the ignition electrode.

Replace the ignition unit on the gas valve.

DANGER: RISK OF ELECTROCUTION

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

11 Troubleshooting

11.3.3 Symptom: The burner resonates

Possible causes Corrective action

Gas supply pressure too low. The house pressure switch may

be faulty. Contact the gas company.

Recirculation of combustion gasses.

Gas/air adjustment NOT correctly set.

Check the flue gas and the air supply.

Check the adjustment. See "To

check the CO₂ setting"[429].

11.3.4 Symptom: No space heating by the gas boiler

Possible causes Corrective action

Heat pump error Check the user interface. Communication problem with the

heat pump. Incorrect heat pump settings. Check the settings in the heat

The service display displays " ", the gas boiler is switched off.

No current (24V) ▪ Check the wiring.

The burner does NOT fire on space heating: sensor S1 or S2 faulty.

Burner does NOT ignite. See "11.3.1Symptom: The

Make sure the communication cable is properly installed.

pump manual. Switch on the gas boiler with .

▪ Check the connector X4. Replace sensor S1 or S2. See

"Error codes of the gas boiler"[436].

burner does NOT ignite"[435].

11.3.5 Symptom: The power is reduced

Possible causes Corrective action

At high rpm, the power has fallen by more than 5%.

▪ Check the appliance and flue

system for fouling.

▪ Clean the appliance and flue

system.

11.3.6 Symptom: Space heating does NOT reach the temperature

Possible causes Corrective action

Weather-dependent setpoint setting is incorrect.

Temperature is too low. Increase the space heating

No circulation in the installation. Check whether there is

The boiler power has NOT been correctly set for the installation.

No heat transfer as a result of lime scale or fouling in the heat exchanger.

Check the setting on the user interface and adjust if necessary.

temperature.

circulation. At least 2 or 3 radiators MUST be open.

Adjust the power. See "Maximum

space heating power setting"[428].

Descale or flush the heat exchanger on the space heating side.

11.3.7 Symptom: No domestic hot water

11.3.8 Symptom: Hot water does NOT reach the temperature (no tank installed)

Not applicable for Switzerland

Possible causes Corrective action

Domestic hot water flow is too high.

Temperature setting for water circuit is too low.

No heat transfer as a result of lime scale or fouling in the heat exchanger domestic hot water side.

Cold water temperature <10°C. The water inlet temperature is

The domestic hot water temperature fluctuates between hot and cold.

Adjust the inlet assembly.

Increase the domestic hot water setpoint on the domestic hot water homepage of the user interface.

Descale or flush the exchanger domestic hot water side.

too low. ▪ The flow is too low. To

guarantee comfort, a minimum water flow of 5 l/min is recommended.

▪ Increase the domestic hot

water setpoint on the domestic hot water homepage of the user interface.

11.3.9 Symptom: Hot water does NOT reach the temperature (tank installed)

Possible causes Corrective action

The gas boiler has an error code. Check the display of the gas

boiler for more information.

The outdoor unit has an error code.

The 3-way valve is not working correctly.

Check for possible errors on the user interface.

▪ Check the installation of the 3-

way valve.

▪ In case of domestic hot water

operation, the flow should be directed to the tank.

11.4 Solving problems based on error codes

If the unit runs into a problem, the user interface displays an error code. It is important to understand the problem and to take measures before resetting an error code. This should be done by a licensed installer or by your local dealer.

This chapter gives you an overview of all possible error codes and their descriptions as they appear on the user interface.

For detailed troubleshooting of each error, see the service manual.

11.4.1 Error codes: Overview

Error codes of the gas boiler

The controller on the gas boiler detects faults and indicates them on the display by error codes.

Not applicable for Switzerland

Possible causes Corrective action

The burner is NOT firing on domestic hot water: S3 faulty.

The burner does NOT ignite. See "11.3.1Symptom: The

Installation and operation manual

Replace S3.

burner does NOT ignite"[435].

Daikin Altherma H Hybrid – Gas boiler module

EHY2KOMB28+32AA

4P538953-1B – 2020.10

12 Glossary

If the LED is flashing, the controller has detected a problem. Once the problem is rectified, the controller can be restarted by pressing the button.

Following table shows a list of error codes and the possible solutions.

Error code

10, 11, 12, 13, 14

20, 21, 22, 23, 24

0 Sensor fault after

1 Temperature too

2 S1 and S2

4 No flame signal ▪ Gas tap is closed

5 Poor flame signal ▪ Condensate drain blocked

6 Flame detection

8 Incorrect fan speed ▪ Fan catching on casing

29, 30 Gas valve relay

Cause Possible solution

Sensor fault S1 ▪ Check wiring

▪ Replace S1

Sensor fault S2 ▪ Check wiring

▪ Replace S2

Replace S1 and/or S2

self-check

▪ Air in installation

high

interchanged

fault

▪ Pump is NOT running

▪ Insufficient flow in installation

▪ Radiators are closed

▪ Pump setting is too low ▪ Check cable set

▪ Replace S1 and S2

▪ No or incorrect ignition gap

▪ Gas supply pressure is too low or

fails

▪ Gas valve or ignition unit is NOT

powered

▪ Check adjustment of gas valve ▪ Replace ignition cable and spark

plug cap

▪ Replace ignition unit

▪ Replace boiler controller

▪ Wiring between fan and casing

▪ Check wiring for poor wire contact

▪ Replace fan Replace boiler controller

Installation manual

Instruction manual specified for a certain product or application, explaining how to install, configure and maintain it.

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.

12 Glossary

Dealer

Sales distributor for the product.

Authorised 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.

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

13 Technical data

m l

h p

o n

a b c d e

13 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 Business Portal (authentication required).

13.1 Components

13.1.1 Components: Gas boiler

a Space heating pump b Gas valve c Boiler control panel d Sensor S1 (in) e Sensor S2 (out)

f Fan g Flow sensor h Space heating pressure sensor

i Mains lead 230VAC with earthed plug

j Manual air bleed k Sight glass

l Air supply cap (use ONLY in case of twin pipe flue system)

m Flue pipe adapter (use ONLY with the accompanying elbow in flue sets)

n Connection block/terminal strip X4 o Condensate drain pan p Domestic hot water sensor S3 q Condensate S3

r Heat exchanger s Operating panel and read-out

t Ionisation/ignition electrode u Position of data plate

Bottom view

Installation and operation manual

a Space heating outlet

b Instant domestic hot water outlet (not applicable for

Switzerland)

c Gas inlet

d Instant domestic hot water inlet (not applicable for

Switzerland)

e Space heating inlet

Daikin Altherma H Hybrid – Gas boiler module

EHY2KOMB28+32AA

4P538953-1B – 2020.10

13.2 Wiring diagram

3,15 A T

13 Technical data

13.2.1 Wiring diagram: Gas boiler

a Earth connection heat exchanger b Spark cover c Boiler controller d Earth lips boiler controller e Fuse (3.15AT)

f Gas valve and ignition unit g Ignition/ionisation pin h Main voltage

i Fan

j Current loop module

P1 Space heating pump S1 Supply sensor S2 Return sensor S3 Domestic hot water sensor (not applicable for

Switzerland)

S5 Flow sensor S7 Space heating water pressure sensor S8 Space heating leaving water thermistor X1 Gas valve and ignition electrode X2 Main power supply (2=L (BRN), 4=N (BLU)) X3 Power supply fan (230V) X4 Sensor connection X5 Boiler communication cable X7 Sensor connection

13.3 Technical specifications

13.3.1 Technical specifications: Gas boiler

General

Technical data EHY2KOMB28AA EHY2KOMB32AA

Condensing boiler Yes Low-temperature boiler No B1 boiler No Cogeneration space heater No Combination heater Yes Related heat pump model EJHA04AAV3 Function Heating – Domestic hot water Initial gas pressure G20 – 20 mbar Suitable for gas UK, IT : II2H3P

FR : II2Esi3P

DE : II2ELL3P

Domestic water (not applicable for Switzerland)

Nominal load domestic hot water Qnw (Hs) 7.9~32.3kW 8.4~36.3kW Nominal load domestic hot water Qnw (Hi) 7.1~29.1kW 7.6~32.7kW Domestic hot water flow rate (setpoint 60°C) 7.5l/min 9l/min Domestic hot water flow rate (setpoint 40°C) 12.5l/min 15l/min Maximum water pressure 8bar Efficiency domestic hot water (net calorific value) 105% Operation range 40~65°C Domestic water threshold 2l/min Effective unit wait time <1sec Domestic water side pressure difference See "Flow resistance graph for appliance domestic hot water circuit"[415].

Space heating

Nominal load: upper value Qn (Hs) 7.9~26.3kW 8.4~30.0kW Nominal load: lower value Qn (Hi) 7.1~23.7kW 7.6~27.0kW Output at 80/60°C P Output at 50/30°C P

Nominal output 7.7~23.1kW 8.2~26.6kW Efficiency space heating (net calorific value 80/60) η100 97.5% 98.7% Efficiency space heating (net calorific value 37/30 (30%)) η30 107.9% 108.3% Operation range 30~90°C

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

7,1~23.1kW 7.4~26.6kW 7,7~25.4kW 8.2~28.9kW

Installation and operation manual

13 Technical data

Technical data EHY2KOMB28AA EHY2KOMB32AA

Pressure drop See ESP curve in the installer reference guide. Maximum space heating water pressure (PMS) 3bar Maximum space heating water temperature 90°C Boiler types

Gas

Gas consumption (G20, natural gas E/H) 0.74~3.02m3/h 0.79~3.39m³/h Gas consumption (G25, natural gas LL/L) 0.84~3.46m3/h 0.89~3.92m³/h Gas consumption (G31, Liquefied propane gas) 0.28~1.15m3/h 0.30~1.29m³/h Maximum flue gas temperature domestic hot water 70°C Mass flow flue gas (maximum) 13.5g/s 15.1g/s Available fan pressure 75Pa NOx class 6 NOx 27mg/kWh 36mg/kWh P1, at 30% of Rated input (30/37) 7.7kW 8.8kW P4, Rated output (80/60) 23.1kW 26.6kW ɳ1, Efficiency at P1 (gross calorific value 37/30 - 30%) 97.1% 97.5% ɳ4, Efficiency at P4 (gross calorific value 80/60) 87.8% 88.8% Standby heat loss, P Daily fuel consumption, Q Daily electricity consumption, Q

Casing

Colour White – RAL9010 Material Pre-coated sheet metal

Dimensions

Packing (H×W×D) 840×500×300mm 900×500×300mm Unit (H×W×D) 650×450×240mm 710×450×240mm Machine net weight 33kg 36kg Packed machine weight 34kg 37kg Packing material Carton/PP (straps) Packing material (weight) 1kg

Main components

Water side heat exchanger Aluminium, copper Boiler water volume 3.6l 4.0l

Space heating water circuit

Space heating piping connections Ø22mm Piping material Copper Safety valve Not included Manometer Yes (digital) Drain/fill valve No (optional in connection set) Shut‑off valves No (optional in connection set) Air purge valve Yes (manual) Maximum pressure space heating circuit 3bar

Domestic hot water circuit (not applicable for Switzerland)

Domestic hot water piping connections Ø15mm Piping material Copper Gas connection Ø15mm Flue gas/combustion air connection Concentric connection Ø60/100mm

Electrical

Power supply voltage 230V Power supply phase 1~ Power supply frequency 50Hz IP class IPX4D

Maximum electrical power consumption 80W

(a)

(EN 15502) B23, B33, C13(x), C33(x), C43(x), C53(x), C63(x), C83(x), C93(x)

stby

fuel

elec

0.037kW 0.038kW

22.884kWh 22.573kWh

0.076kWh 0.071kWh

(B23, B33=IP20)

Installation and operation manual

Daikin Altherma H Hybrid – Gas boiler module

EHY2KOMB28+32AA

4P538953-1B – 2020.10

13 Technical data

Technical data EHY2KOMB28AA EHY2KOMB32AA

Electrical power consumption (standby) 2W Auxiliary electricity consumption at full load (elmax) 0.035kW 0.040kW Auxiliary electricity consumption at part load (elmin) 0.015kW Auxiliary electricity consumption in standby mode (P

Radio module

Power supply 230VAC mains powered Frequency range 868.3MHz Effective Radiated Power (ERP) 12.1dBm

(a)

Index 'x' only valid for DE.

Energy-related products specifications

Technical data EHY2KOMB28AA EHY2KOMB32AA

Seasonal space heating efficiency class A Heat rated output (P Annual energy consumption (QHE) 47GJ 53GJ Seasonal space heating efficiency (ηS) 92% 93% Sound power level indoors (at maximum heat

output) (LWA) Declared load profile XL Water heating energy efficiency class A Annual electricity consumption (AEC) 17kWh 16kWh Annual fuel consumption (AFC) 18GJ Water heating energy efficiency (ηWH) 83% 84% Efficiency class controller II Contribution to yearly efficiency 2.0%

) 23kW 27kW

rated

) 0.002kW

stby

45 50

Appliance category and supply pressure

Country Appliance category Default setting After conversion to G25 After conversion to G31

Germany II2ELL3P G20 (20mbar) G25 (20mbar) G31 (50mbar) France II2Esi3P G20 (20mbar) G25 (25mbar) G31 (37mbar) Italy II2H3P G20 (20mbar) — G31 (37mbar) United Kingdom II2H3P G20 (20mbar) — G31 (37mbar)

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

13 Technical data

* All installations in England and Wales must be to Local Authority Building Control (LABC) either directly or through a

Competent Persons Scheme. A Building Regulations Compliance

will then be issued to the customer.

www.centralheating.co.uk

This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.

GAS BOILER SYSTEM COMMISSIONING CHECKLIST

CONTROLS

Programmable room thermostat

Optimum start control

Combination Boiler

Fitted

Automatic bypass to system Fitted

Boiler interlock

ALL SYSTEMS

Yes

CENTRAL HEATING MODE

mbar OR mbar

Central heating return temperature

COMBINATION BOILERS ONLY

Yes

DOMESTIC HOT WATER MODE

mbar OR mbar

Cold water inlet temperature

Yes Temperature

CONDENSING BOILERS ONLY

Yes

ALL INSTALLATIONS

AND

Ratio

AND

Ratio

Yes

www.centralheating.co.uk

Installation and operation manual

EHY2KOMB28+32AA

Daikin Altherma H Hybrid – Gas boiler module

4P538953-1B – 2020.10

*All installations in England and Wales must be to Local Authority Building Control (LABC) either directly or through a

Competent Persons Scheme. A Building Regulations Compliance

will then be issued to the customer.

It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed.

Service Provider

SERVICE RECORD

SERVICE 01

AND

(Where Possible) AND

Signature

SERVICE 02

AND

(Where Possible) AND

Signature

SERVICE 03

AND

(Where Possible) AND

Signature

SERVICE 04

AND

(Where Possible) AND

Signature

SERVICE 05

AND

(Where Possible) AND

Signature

SERVICE 06

AND

(Where Possible) AND

Signature

SERVICE 07

AND

(Where Possible) AND

Signature

SERVICE 08

AND

(Where Possible) AND

Signature

SERVICE 09

AND

(Where Possible) AND

Signature

SERVICE 10

AND

(Where Possible) AND

Signature

13 Technical data

EHY2KOMB28+32AA Daikin Altherma H Hybrid – Gas boiler module 4P538953-1B – 2020.10

Installation and operation manual

14 Disposal

NOTICE

Do NOT try to dismantle the system yourself: 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.

Installation and operation manual

Daikin Altherma H Hybrid – Gas boiler module

EHY2KOMB28+32AA

4P538953-1B – 2020.10

Verantwortung für Energie und Umwelt

89045702

4P538953-1B 2020.10

Daikin EHY2KOMB28AA, EHY2KOMB32AA Operation manuals

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of contents

1 About the product

2 About the documentation

2.1 About this document

3 General safety precautions

3.1 About the documentation

3.1.1 Meaning of warnings and symbols

3.2 For the installer

3.2.1 General

3.2.2 Installation site

3.2.3 Water

3.2.4 Electrical

3.2.5 Gas

3.2.7 Local legislation

3.2.6 Gas exhaust

4 About the box

4.1 Gas boiler

4.1.1 Symbols on the package

4.1.2 To unpack the gas boiler

4.1.3 To remove the accessories from the gas boiler

5 About the units and options

5.1 Identification

5.1.1 Identification label: Gas boiler

5.2 Combining units and options

5.2.1 Possible options for the gas boiler

6 Installation

6.1.2 To open the switch box cover of the gas boiler

6.2 Installation space

6.2.1 Installation space requirements

6.1 Opening the unit

6.1.1 To open the gas boiler

6.3 Mounting the gas boiler

6.3.1 To install the gas boiler

6.3.2 To install the condensate trap

6.4 Condensate pipe work

6.4.1 Internal connections

6.4.2 External connections

Condensate pump

6.5 Connecting water piping

6.5.1 Connecting the water piping of the gas boiler

To connect the water piping for domestic hot water (not applicable for Switzerland)

To connect the water piping for domestic hot water (applicable for Switzerland)

Flow resistance graph for appliance domestic hot water circuit

To connect the water piping for space heating

To fill the domestic water circuit of the gas boiler

6.6 Connecting the electrical wiring

6.6.1 To connect the main power supply of the gas boiler

6.6.2 To connect the electrical wiring to the gas boiler

6.7 Connecting the gas piping

6.7.1 To connect the gas pipe

6.8 Connecting the boiler to the flue gas system

6.8.1 To change the gas boiler to 80/125 concentric connection

6.8.2 To change the 60/100 concentric connection to a dual pipe connection

6.8.3 Calculate the total piping length

6.8.4 Appliance categories and pipe lengths

6.8.5 Applicable materials

6.8.6 Flue pipe position

6.8.8 Fitting a horizontal flue system

6.8.10 Plume management kit

6.8.9 Fitting a vertical flue system

6.8.11 Flues in voids

6.8.12 Flue gas materials (C63) available on the market

6.8.13 About securing the flue system

7 Configuration

6.9 Finishing the gas boiler installation

6.9.1 To perform an air purge on the gas supply

6.9.3 To install the cover plate

7.1 Gas boiler

7.1.1 Overview: Configuration

6.9.2 To close the gas boiler

7.1.2 Basic configuration

To turn on/off the gas boiler

Domestic hot water comfort function

To reset the gas boiler

Maximum space heating supply temperature

Domestic hot water temperature