Daikin EKHBH008BB3V3, EKHBH008BB6V3, EKHBH008BB6WN, EKHBH008BB6T1, EKHBH008BB9WN Installation manuals

INSTALLATION MANUAL

Indoor unit for air to water heat pump system

EKHBH008BB3V3
EKHBH008BB6V3
EKHBH008BB6WN
EKHBH008BB6T1
EKHBH008BB9WN
EKHBH008BB9T1

EKHBX008BB3V3
EKHBX008BB6V3
EKHBX008BB6WN

EKHBH008BB

EKHBX008BB6T1

EKHBX008BB

EKHBX008BB9WN

35

8

01

SP

1

12 3 45

2x2x1x 1x 1x

2

1

3

895

922

2

4

260

T T

830

1" MB

2
3

B B

469

4

30°

90°

361

48

4

1

96

39

4
5

3

CE - ATITIKTIES-DEKLARACIJA

CE - ATBILSTĪBAS-DEKLARĀCIJA

CE - VYHLÁSENIE-ZHODY

CE - UYUMLULUK-BİLDİRİSİ

CE - IZJAVA O SKLADNOSTI

CE - VASTAVUSDEKLARATSIOON

CE - ДЕКЛАРАЦИЯ-ЗА-СЪОТВЕТСТВИЕ

deklaruje na własną wyłączną odpowiedzialność, że urządzenia, których ta deklaracja dotyczy:

z vso odgovornostjo izjavlja, da je oprema naprav, na katero se izjava nanaša:

kinnitab oma täielikul vastutusel, et käesoleva deklaratsiooni alla kuuluv varustus:

declară pe proprie răspundere că echipamentele la care se referă această declaraţie:

m

o

x

r

18

20

19

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CE - IZJAVA-O-USKLAĐENOSTI

CE - MEGFELELŐSÉGI-NYILATKOZAT

CE - DEKLARACJA-ZGODNOŚCI

CE - DECLARAŢIE-DE-CONFORMITATE

19 Direktive z vsemi spremembami.

10 Direktiver, med senere ændringer.

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:

декларира на своя отговорност, че оборудването, за което се отнася тази декларация:

b

21

tamamen kendi sorumluluğunda olmak üzere bu bildirinin ilgili olduğu donanımının aşağıdaki gibi olduğunu beyan eder:

t

v

k

w

23

24

25

22

instrukcjami:

conformitate cu instrucţiunile noastre

инструкции:

16 megfelelnek az alábbi szabvány(ok)nak vagy egyéb irányadó dokumentum(ok)nak, ha azokat előírás szerint használják:

17 spełniają wymogi następujących norm i innych dokumentów normalizacyjnych, pod warunkiem że używane są zgodnie z naszymi

18 sunt în conformitate cu următorul (următoarele) standard(e) sau alt(e) document(e) normativ(e), cu condiţia ca acestea să fie utilizate în

19 skladni z naslednjimi standardi in drugimi normativi, pod pogojem, da se uporabljajo v skladu z našimi navodili:

20 on vastavuses järgmis(t)e standardi(te)ga või teiste normatiivsete dokumentidega, kui neid kasutatakse vastavalt meie juhenditele:

21 съответстват на следните стандарти или други нормативни документи, при условие, че се използват съгласно нашите

s našim návodom:

22 atitinka žemiau nurodytus standartus ir (arba) kitus norminius dokumentus su sąlyga, kad yra naudojami pagal mūsų nurodymus:

23 tad, ja lietoti atbilstoši ražotāja norādījumiem, atbilst sekojošiem standartiem un citiem normatīviem dokumentiem:

24 sú v zhode s nasledovnou(ými) normou(ami) alebo iným(i) normatívnym(i) dokumentom(ami), za predpokladu, že sa používajú v súlade

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

01 Directives, as amended.

20 Direktiivid koos muudatustega.

21 Директиви, с техните изменения.

22 Direktyvose su papildymais.

23 Direktīvās un to papildinājumos.

24 Smernice, v platnom znení.

25 Değiştirilmiş halleriyle Yönetmelikler.

Direktiivejä, sellaisina kuin ne ovat muutettuina.

irányelv(ek) és módosításaik rendelkezéseit.

14 v platném znění.

15 Smjernice, kako je izmijenjeno.

16

17 z późniejszymi poprawkami.

11 Direktiv, med företagna ändringar.

12 Direktiver, med foretatte endringer.

13

02 Direktiven, gemäß Änderung.

03 Directives, telles que modifiées.

04 Richtlijnen, zoals geamendeerd.

18 Directivelor, cu amendamentele respective.

05 Directivas, según lo enmendado.

06 Direttive, come da modifica.

07 √‰ËÁÈÒv, fiˆ˜ ¤¯Ô˘Ó ÙÚÔÔÔÈËı›.

08 Directivas, conforme alteração em.

09 Директив со всеми поправками.

Cертификата <C>.

положително от <B> съгласно

22 Pastaba * kaip nustatyta <A> ir kaip teigiamai nuspręsta <B>

21 Забележка * както е изложено в <A> и оценено

a(z) <C> tanúsítvány szerint.

<B> i Świadectwem <C>.

pagal Sertifikatą <C>.

vērtējumam saskaņā ar sertifikātu <C>.

23 Piezīmes * kā norādīts <A> un atbilstoši <B> pozitīvajam

de <B> în conformitate cu Certificatul <C>.

<A> DAIKIN.TCF.025D10/10-2010

<B> KEMA (NB0344)

<C> 2082543.0551-QUA/EMC

súlade s osvedčením <C>.

<A>‘da belirtildiği gibi ve <C> Sertifikasına

göre <B> tarafından olumlu olarak

değerlendirildiği gibi.

*

Not

24 Poznámka * ako bolo uvedené v <A> a pozitívne zistené <B> v

25

skladu s certifikatom <C>.

kiidetud <B> järgi vastavalt sertifikaadile <C>.

CE - ERKLÆRING OM-SAMSVAR

CE - ILMOITUS-YHDENMUKAISUUDESTA

CE - PROHLÁŠENÍ-O-SHODĚ

заявляет, исключительно под свою ответственность, что оборудование, к которому относится настоящее заявление:

erklærer som 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:

u

q

s

n

j

c

y

09

10

11

12

CE - FÖRSÄKRAN-OM-ÖVERENSTÄMMELSE

CE - DECLARAÇÃO-DE-CONFORMIDADE

СЕ - ЗАЯВЛЕНИЕ-О-СООТВЕТСТВИИ

CE - OPFYLDELSESERKLÆRING

CE - DECLARACION-DE-CONFORMIDAD

CE - DICHIARAZIONE-DI-CONFORMITA

CE - ¢H§ø™H ™YMMOPºø™H™

13

14

la declaración:

referencia

h

15

16

acordo com as nossas instruções:

инструкциям:

instrukser:

förutsättning att användning sker i överensstämmelse med våra instruktioner:

disse brukes i henhold til våre instrukser:

08 estão em conformidade com a(s) seguinte(s) norma(s) ou outro(s) documento(s) nor mativo(s), desde que estes sejam utilizados de

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

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

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

mukaisesti:

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

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

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

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

Low Voltage 2006/95/EC

Electromagnetic Compatibility 2004/108/EC *

19 ob upoštevanju določb:

20 vastavalt nõuetele:

21 следвайки клаузите на:

22 laikantis nuostatų, pateikiamų:

23 ievērojot prasības, kas noteiktas:

24 održiavajúc ustanovenia:

25 bunun koşullarına uygun olarak:

16 Megjegyzés * a(z) <A> alapján, a(z) <B> igazolta a megfelelést,

Certifikatet <C>.

11 Information * enligt <A> och godkänts av <B> enligt

da <B> secondo il Certificato <C>.

06 Nota * delineato nel <A> e giudicato positivamente

19 Opomba * kot je določeno v <A> in odobreno s strani <B> v

17 Uwaga * zgodnie z dokumentacją <A>, pozytywną opinią

18 Notă * aşa cum este stabilit în <A> şi apreciat pozitiv

hyväksynyt Sertifikaatin <C> mukaisesti.

souladu s osvědčením <C>.

bedømmelse av <B> ifølge Sertifikat <C>.

13 Huom * jotka on esitetty asiakirjassa <A> ja jotka <B> on

14 Poznámka * jak bylo uvedeno v <A> a pozitivně zjištěno <B> v

12 Merk * som det fremkommer i <A> og gjennom positiv

положительным решением <B> согласно

·fi ÙÔ <B> Û‡Ìʈӷ Ì ÙÔ ¶ИЫЩФФИЛЩИОfi <C>.

positivo de <B> de acordo com o Certificado <C>.

07 ™ËÌ›ˆÛË * fiˆ˜ ηıÔÚ›˙ÂÙ·È ÛÙÔ <A> Î·È ÎÚ›ÓÂÙ·È ıÂÙÈο

08 Nota * tal como estabelecido em <A> e com o parecer

09 Примечание * как указано в <A> и в соответствии с

20 Märkus * nagu on näidatud dokumendis <A> ja heaks

strane <B> prema Certifikatu <C>.

15 Napomena * kako je izloženo u <A> i pozitivno ocijenjeno od

Свидетельству <C>.

henhold til Certifikat <C>.

10 Bemærk * som anført i <A> og positivt vurderet af <B> i

Jean-Pierre Beuselinck

General Manager

Ostend, 1st of December 2010

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:

déclare sous sa seule responsabilité que l’équipement visé par la présente déclaration:

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

dichiara sotto la propria responsabilità che gli apparecchi a cui è riferita questa dichiarazione:

a

d

f

l

e

CE - DECLARATION-OF-CONFORMITY

CE - KONFORMITÄTSERKLÄRUNG

CE - DECLARATION-DE-CONFORMITE

CE - CONFORMITEITSVERKLARING

Daikin Europe N.V.

01

02

i

05

04

06

03

10 under iagttagelse af bestemmelserne i:

11 enligt villkoren i:

12 gitt i henhold til bestemmelsene i:

13 noudattaen määräyksiä:

14 za dodržení ustanovení předpisu:

15 prema odredbama:

16 követi a(z):

17 zgodnie z postanowieniami Dyrektyw:

18 în urma prevederilor:

declara sob sua exclusiva responsabilidade que os equipamentos a que esta declaração se refere:

‰ЛПТУВИ МВ ·ФОПВИЫЩИО‹ ЩЛ˜ В˘ı‡УЛ fiЩИ Ф ВНФПИЫМfi˜ ЫЩФУ ФФ›Ф ·У·К¤ЪВЩ·И Л ·ЪФ‡Ы· ‰‹ПˆЫЛ:

p

g

07

08

EKHBH008BB3V3*, EKHBH008BB6V3*, EKHBH008BB6WN*, EKHBH008BB6T1*, EKHBH008BB9WN*, EKHBH008BB9T1*,

EKHBX008BB3V3*, EKHBX008BB6V3*, EKHBX008BB6WN*, EKHBX008BB6T1*, EKHBX008BB9WN*,

* = , , 1, 2, 3, ..., 9, A, B, C, ..., Z

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

instructions:

daß sie gemäß unseren Anweisungen eingesetzt werden:

02 der/den folgenden Norm(en) oder einem anderen Normdokument oder -dokumenten entspr icht/entsprechen, unter der Voraussetzung,

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

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

onze instructies:

05 están en conformidad con la(s) siguiente(s) norma(s) u otro(s) documento(s) nor mativo(s), siempre que sean utilizados de acuerdo con

nuestras instrucciones:

nostre istruzioni:

Û‡Ìʈӷ Ì ÙȘ Ô‰ËÁ›Â˜ Ì·˜:

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

07 В›У·И Ы‡МКˆУ· МВ ЩФ(·) ·ОfiПФ˘ıФ(·) ЪfiЩ˘Ф(·) ‹ ¿ППФ ¤ББЪ·КФ(·) О·УФУИЫМТУ, ˘fi ЩЛУ ЪФ¸fiıВЫЛ fiЩИ ¯ЪЛЫИМФФИФ‡УЩ·И

01 following the provisions of:

02 gemäß den Vorschriften der:

03 conformément aux stipulations des:

04 overeenkomstig de bepalingen van:

EN60335-2-40,

05 siguiendo las disposiciones de:

06 secondo le prescrizioni per:

07 Ì ًÚËÛË Ùˆv ‰È·Ù¿Íˆv Ùˆv:

08 de acordo com o previsto em:

09 в соответствии с положениями:

according to the Certificate <C>.

beurteilt gemäß Zertifikat <C>.

<B> conformément au Certificat <C>.

<B> overeenkomstig Certificaat <C>.

positivamente por <B> de acuerdo con el

Certificado <C>.

01 Note * as set out in <A> and judged positively by <B>

02 Hinweis * wie in der <A> aufgeführt und von <B> positiv

03 Remarque * tel que défini dans <A> et évalué positivement par

04 Bemerk * zoals vermeld in <A> en positief beoordeeld door

05 Nota * como se establece en <A> y es valorado

3PW57792-1

EKHBH008BB***
EKHBX008BB***

Indoor unit for air to water heat pump system

Installation manual

CONTENTS Page

1. Definitions.................................................................................. 2

1.1. Meaning of warnings and symbols................................................. 2

1.2. Meaning of used terms .................................................................. 2

2. General safety precautions........................................................ 2

3. Introduction................................................................................ 3

3.1. General information........................................................................ 3

3.2. Scope of this manual ..................................................................... 4

3.3. Model identification ........................................................................ 4

3.4. Typical application examples.......................................................... 5

Application 1 .................................................................................. 5

Application 2 .................................................................................. 5

Application 3 .................................................................................. 6

Application 4 .................................................................................. 7

Application 5 .................................................................................. 7

Application 6 .................................................................................. 9

4. Accessories ............................................................................. 10

4.1. Accessories supplied with the indoor unit .................................... 10

5. Overview of the indoor unit...................................................... 10

5.1. Opening the indoor unit................................................................ 10

5.2. Main components......................................................................... 11

5.3. Switch box main components ...................................................... 12

5.4. Functional diagram....................................................................... 12

6. Installation of the indoor unit.................................................... 13

6.1. Selecting an installation location.................................................. 13

6.2. Dimensions and service space .................................................... 13

6.3. Inspecting, handling and unpacking the unit................................ 14

6.4. Mounting the indoor unit .............................................................. 14

6.5. Installation of the EKHBDP drain pan kit (only for

EKHBX models) ........................................................................... 15

6.6. Refrigerant pipework.................................................................... 15

6.7. Water pipework ............................................................................ 15

Checking the water circuit............................................................ 15

6.8. General precautions concerning water circuit.............................. 15

Checking the water volume and expansion vessel

pre-pressure................................................................................. 16

Setting the pre-pressure of the expansion vessel........................ 17

Connecting the water circuit......................................................... 17

6.9. Charging water............................................................................. 17

6.10. Piping insulation........................................................................... 18

7. Electrical wiring work............................................................... 18

7.1. Precautions on electrical wiring work........................................... 18

7.2. Internal wiring - Parts table .......................................................... 18

7.3. System overview of field wiring.................................................... 19

Field wiring guidelines.................................................................. 19

Connection of the indoor unit power supply and

communication cable ................................................................... 20

Connection of the backup heater power supply........................... 20

Connection of the thermostat cable ............................................. 21

Connection of the valve control cables......................................... 21

Connection of the bottom plate heater......................................... 21

Connection to a benefit kWh rate power supply........................... 22

7.4. Relocation of the digital controller................................................ 23

Wiring specifications .................................................................... 23

Mounting ...................................................................................... 23

8. Start-up and configuration ....................................................... 23

8.1. DIP switch settings overview........................................................ 23

8.2. Room thermostat installation configuration.................................. 24

8.3. Pump operation configuration ...................................................... 24

8.4. Domestic hot water tank installation configuration....................... 25

8.5. Initial start-up at low outdoor ambient temperatures.................... 25

8.6. Pre-operation checks ................................................................... 25

Checks before initial start-up........................................................ 25

8.7. Powering up the indoor unit ......................................................... 26

8.8. Setting the pump speed ............................................................... 26

8.9. Field settings................................................................................ 26

Procedure .................................................................................... 26

Detailed description ..................................................................... 27

8.10. Field settings table....................................................................... 39

9. Test run and final check ...........................................................43

9.1. Final check................................................................................... 43

9.2. Test run operation (manual) ......................................................... 43

Procedure .................................................................................... 43

9.3. Underfloor heating screed dry-out program ................................. 43

Disclaimer .................................................................................... 43

Field settings................................................................................ 43

Getting started ............................................................................. 44

10. Maintenance and service.........................................................45

10.1. Maintenance activities.................................................................. 45

Cautions before obtaining maintenance and service ................... 45

Opening the unit........................................................................... 45

Maintenance and service ............................................................. 45

11. Troubleshooting........................................................................ 46

11.1. General guidelines....................................................................... 46

11.2. General symptoms....................................................................... 46

11.3. Error codes .................................................................................. 48

12. Technical specifications ...........................................................50

12.1. General ........................................................................................ 50

12.2. Electrical specifications................................................................ 50

Appendix ........................................................................................ 51

3. Introduction .............................................................................. 51

3.1. General information...................................................................... 51

3.4. Typical application examples........................................................ 52

Application 2 ................................................................................ 52

5. Overview of the indoor unit ...................................................... 53

5.2. Main components......................................................................... 53

6. Installation of the indoor unit....................................................53

6.8. General precautions concerning water circuit.............................. 53

Checking the water volume and expansion vessel pre-pressure . 53

7. Electrical wiring work ...............................................................53

7.3. System overview of field wiring.................................................... 53

Connection to a benefit kWh rate power supply........................... 53

8. Start-up and configuration .......................................................53

8.5. Re-start at low outdoor ambient temperatures............................. 53

8.9. Field settings................................................................................ 53

8.10. Field settings table....................................................................... 56

11. Troubleshooting........................................................................ 58

11.2. General symptoms....................................................................... 58

The original instructions are written in English. All other languages
are translations of the original instructions.

CAREFULLY READ THESE INSTRUCTIONS BEFORE
INSTALLATION. THEY WILL TELL YOU HOW TO INSTALL
AND HOW TO CONFIGURE THE UNIT PROPERLY.
KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE
REFERENCE.

THE UNIT DESCRIBED IN THIS MANUAL IS DESIGNED
FOR INDOOR INSTALLATION ONLY AND FOR AMBIENT
TEMPERATURES RANGING 4°C~35°C.

Installation manual

1

Indoor unit for air to water heat pump system

EKHBH/X008BB

4PW62570-1A – 01.2011

1. DEFINITIONS

1.1. Meaning of warnings and symbols

Warnings in this manual are classified according to their severity and
probability of occurrence.

DANGER

Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.

WARNING

Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may also
be used to alert against unsafe practices.

NOTICE

Indicates situations that may result in equipment or
property-damage accidents only.

INFORMATION

This symbol identifies useful tips or additional information.

Some types of danger are represented by special symbols:

Optional equipment:

Equipment which can optionally be combined to the products as per
the subject of this manual.

Field supply:

Equipment which needs to be installed according to instructions in
this manual, but which are not supplied by Daikin.

2. GENERAL SAFETY PRECAUTIONS

The precautions here, all cover very important topics, so be sure to
follow them carefully.

All activities described in this manual shall be carried out by an
installer and in accordance with the applicable legislation.

Be sure to wear adequate personal protection equipment (protection
gloves, safety glasses, …) when performing installation, maintenance
or service to the unit.

If not sure of installation procedures or operation of the unit, always
contact your local dealer for advice and information.

Improper installation or attachment of equipment or accessories
could result in electric shock, short-circuit, leaks, fire or other damage
to the equipment. Be sure only to use accessories and optional
equipment made by Daikin which are specially designed for use with
the products as of subject in this manual and have them installed by
an installer.

Electric current.

Danger of burning and scalding.

1.2. Meaning of used terms

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.

Dealer:

Sales distributor for products as per the subject of this manual.

Installer:

Technical skilled person who is qualified to install products as per the
subject of this manual.

User:

Person who is owner of the product and/or operates the product.

Service company:

Qualified company which can perform or coordinate the required
service to the unit.

Applicable legislation:

All international, European, national and local directives, laws,
regulations and/or codes which are relevant and applicable for a
certain product or domain.

Accessories:

Equipment which is delivered with the unit and which needs to be
installed according to instructions in the documentation.

DANGER: ELECTRICAL SHOCK

Switch off all power supply before removing the switch box
service panel or before making any connections or
touching electrical parts.

Do not touch any switch with wet fingers. Touching a switch
with wet fingers can cause electrical shock. Before
touching electrical parts, turn off all applicable power
supply.

To avoid electric shock, be sure to disconnect the power
supply 1 minute or more before servicing the electrical
parts. Even after 1 minute, always measure the voltage at
the terminals of main circuit capacitors or electrical parts
and, before touching, be sure that those voltages are
50 V DC or less.

When service panels are removed, live parts can easily be
touched by accident. Never leave the unit unattended
during installation or servicing when the service panel is
removed.

DANGER: DO NOT TOUCH PIPING AND INTERNAL
PA RT S

Do not touch the refrigerant piping, water piping or internal
parts during and immediately after operation. The piping
and internal parts may be hot or cold depending on the
working condition of the unit.

Your hand may suffer burns or frostbite if you touch the
piping or internal parts. To avoid injury, give the piping and
internal parts time to return to normal temperature or, if
you must touch them, be sure to wear protective gloves.

EKHBH/X008BB

Indoor unit for air to water heat pump system

4PW62570-1A – 01.2011

Installation manual

2

WARNING

■ Never directly touch any accidental leaking
refrigerant. This could result in severe wounds caused
by frostbite.

■ Do not touch the refrigerant pipes during and
immediately after operation as the refrigerant pipes
may be hot or cold, depending on the condition of the
refrigerant flowing through the refrigerant piping,
compressor, and other refrigerant cycle parts. Your
hands may suffer burns or frostbite if you touch the
refrigerant pipes. To avoid injury, give the pipes time to
return to normal temperature or, if you must touch
them, be sure to wear proper gloves.

CAUTION

Do not rinse the unit. This may cause electric shocks or
fire.

3. INTRODUCTION

3.1. General information

Thank you for purchasing this indoor unit.

The unit is the indoor part of the air to water ERHQ or ERLQ heat
pumps. This unit is designed for wall mounted indoor installation. See

"6.1. Selecting an installation location" on page 13. The unit can be

combined with Daikin fan coil units, floor heating applications, low
temperature radiators, Daikin domestic water heating applications
and Daikin solar kit for domestic hot water applications.

For installations with restricted power supply, the indoor unit can be
configured to limit the power consumption.

There are 2 possibilities to limit the power consumption:

■ allow simultaneous operation of outdoor unit and backup heater
only or outdoor unit and booster heater only by priority setting
[4-01] (see "[4] Backup/booster heater operation and space

heating off temperature" on page 28),

■ allow operation of backup heater only, booster heater only or
outdoor unit only (see "Appendix" on page 51) by [d-02] (see

"[d] Restricted power supply condition mode/Local shift value
weather dependent" on page 55).

INFORMATION

All information and settings in the manual are applicable for
all applications, except the chapters with following footnote
indication: "When the unit is configured for restricted power
supply condition mode, see "Appendix" on page 51".

Heating/cooling units and heating only units

(1)

The unit range consists of two main versions: a heating/cooling
(EKHBX) version and a heating only (EKHBH) version.

Both versions are delivered with an integrated backup heater for
additional heating capacity during low outdoor temperatures. The
backup heater also serves as a backup in case of malfunctioning of
the outdoor unit. The backup heater models are available for a
heating capacity of 3, 6 and 9 kW, and – depending on the heating
capacity – for three different power supply specifications.

Backup heater

Indoor unit model Backup heater capacity

EKHB*008BB3V3 3 kW 1x 230 V
EKHB*008BB6V3 6 kW 1x 230 V
EKHB*008BB6WN 6 kW 3x 400 V
EKHB*008BB9WN 9 kW 3x 400 V
EKHB*008BB6T1 6 kW 3x 230 V
EKHB*008BB9T1 9 kW 3x 230 V

P

H

43

1 Heat pump capacity
2 Required heating capacity (site dependent)
3 Additional heating capacity provided by the backup heater
4 Equilibriumtemperature (can be set through the user

interface, refer to "8.9. Field settings" on page 26)
Ambient (outdoor) temperature

T

A

Heating capacity

P

H

Domestic hot water tank (option)

(2)

nominal voltage

1

2

T

A

An optional domestic hot water tank can be connected to the indoor
unit. The domestic hot water tank is available in 2 types:

■ tank with built-in electrical booster heater (EKHW*) in 3 different
sizes: 150, 200 and 300 litre,

■ tank without electrical booster heater (EKHTS) in 2 different
sizes: 200 and 260 litre.

Refer to the domestic hot water tank installation manual for further
details.

NOTICE

Restricted power supply condition mode can only be used
for a tank with built-in electrical booster heater (EKHW*).

Installation manual

3

(1) When the unit is configured for restricted power supply condition mode,

see "Appendix" on page 51.

(2) When the unit is configured for restricted power supply condition mode,

see "Appendix" on page 51.

Indoor unit for air to water heat pump system

EKHBH/X008BB

4PW62570-1A – 01.2011

Drain pan kit (option)

For heating/cooling versions (EKHBX), it is necessary to install the
EKHBDP drain pan kit.

For more information concerning the drain pan kit, refer to

"6.5. Installation of the EKHBDP drain pan kit (only for EKHBX
models)" on page 15.

Solar kit for domestic hot water tank (option)

For information concerning the EKSOLHW solar kit, refer to the
installation manual of that kit.

INFORMATION

Use the EKSOLHW solar kit only in combination with the
EKHW* domestic hot water tank.

Connection between EKSOLHW and EKHTS domestic hot
water tank is NOT possible.

Digital I/O PCB kit (option)

An optional EKRP1HB digital I/O PCB can be connected to the
indoor unit and allows:

■ remote alarm output,

■ heating/cooling ON/OFF output,

■ bivalent operation (permission signal for the auxiliary boiler) or

additional external backup heater permission signal.

Refer to the operation manual of the indoor unit and to the installation
manual of the digital I/O PCB for more information.

Refer to the wiring diagram or connection diagram for connecting this
PCB to the unit.

Room thermostat kit (option)

An optional room thermostat EKRTW, EKRTWA, or EKRTR can be
connected to the indoor unit. Refer to the installation manual of the
room thermostat for more information.

Bottom plate heater (option)

Connectable heaters

EKBPHT08 EKBPHT08BA

EKHBH/X008BB Possible Possible

(a) Recommended.

(a)

Possible combinations

EKHBH/X_BB

ERHQ_BA Possible
ERLQ_BA Possible

(a) If a bottom plate heater is required, see "Bottom plate heater (option)" on page 4.

Connection to a benefit kWh rate power supply

(a)

(1)

This equipment allows for connection to benefit kWh rate power
supply delivery systems. Full control of the unit will remain possible
even in case the benefit kWh rate power supply is of the type that
power supply is interrupted. Refer to "Connection to a benefit kWh

rate power supply" on page 22 for more details.

3.2. Scope of this manual

This manual does NOT include the selection procedure and the water
system design procedure. Only some precautions and tips and tricks
about the design of the water circuit are given in a separate chapter
of this manual.

Once the selection is done and the water system is designed, this
manual describes the procedures for handling, installing and
connecting the EKHBH/X units. This manual has been prepared to
ensure adequate maintenance of the unit, and it will provide help if
problems occur.

INFORMATION

Refer to the installation manual of the outdoor unit for
items not described in this manual.

The operation of the indoor unit is described in the indoor
unit operation manual.

3.3. Model identification

Indoor unit

EK HB X 008 BB 3 V3

Backup heater nominal
voltage:
V3 = 1P, 230 V

WN = 3P, 400 V
T1 = 3P, 230 V

Backup heater capacity (kW)

Series

Indication of heating/cooling capacity (kW)

X = heating and cooling,
H = heating only

Hydro box

European kit

(a) For exact values, refer to "12. Technical specifications" on page 50.

Drain pan kit (optional)

EK HB DP 150

Drain pan

Hydro box

European kit

(a)

(1) When the unit is configured for restricted power supply condition mode,

see "Appendix" on page 51.

EKHBH/X008BB

Indoor unit for air to water heat pump system

4PW62570-1A – 01.2011

Installation manual

4

3.4. Typical application examples

The application examples given below are for illustration purposes
only.

Application 1

Space heating only application with the room thermostat connected
to the indoor unit.

T

6745321

Application 2

(1)

Space heating only application without room thermostat connected to
the indoor unit. The temperature in each room is controlled by a valve
on each water circuit. Domestic hot water is provided through the
domestic hot water tank which is connected to the indoor unit.

645321

7 8

M

M1T1M2T2M3

9

T3

6

FHL1

FHL2

FHL3

1 Outdoor unit
2 Indoor unit
3 Heat exchanger
4 Backup heater
5 Pump
6 Shut-off valve
7 Collector (field supply)

FHL1...3 Floor heating loop

T Room thermostat (optional)

Pump operation and space heating

When the room thermostat (T) is connected to the indoor unit, the
pump (5) will operate when there is a heating request from the room
thermostat, and the outdoor unit will start operating to achieve the
target leaving water temperature as set on the user interface.

When the room temperature is above the thermostat set point, the
outdoor unit and pump will stop operating.

NOTICE

Make sure to connect the thermostat wires to the correct
terminals (see "Connection of the thermostat cable" on

page 21) and to configure the DIP switch toggle switches

correctly (see "8.2. Room thermostat installation

configuration" on page 24).

6

1 Outdoor unit
2 Indoor unit
3 Heat exchanger
4 Backup heater
5 Pump
6 Shut-off valve
7 Motorised 3-way valve (delivered with domestic hot water

tank)

8 Collector (field supply)

9 By-pass valve (field supply)
10 Domestic hot water tank (optional)
11 Booster heater
12 Heat exchanger coil

FHL1...3 Floor heating loop

T1...3 Individual room thermostat (optional)

M1...3 Individual motorised valve to control the floor heating loop

(field supply)

11 12

(2)

(3)

FHL1

FHL2

FHL3

10

Pump operation

With no thermostat connected to the indoor unit (2), the pump (5) can
be configured to operate either as long as the indoor unit is on, or
until the required water temperature is reached.

INFORMATION

Details on pump configuration can be found under

"8.3. Pump operation configuration" on page 24.

Installation manual

5

Space heating

The outdoor unit (1) will operate to achieve the target leaving water
temperature as set on the user interface.

NOTICE

When circulation in each space heating loop (FHL1...3) is
controlled by remotely controlled valves (M1...3), it is
important to provide a by-pass valve (9) to avoid the flow
switch safety device from being activated.

The by-pass valve should be selected as such that at all
time the minimum water flow as mentioned under

"6.7. Water pipework" on page 15 is guaranteed.

It is recommended to select a pressure difference
controlled by-pass valve.

(1) When the unit is configured for restricted power supply condition mode,

see "Appendix" on page 51.

(2) For tank without electrical booster heater (EKHTS), the backup heater will

be used in domestic water heating mode.

(3) Only applicable for tank with built-in electrical booster heater (EKHW*).

Indoor unit for air to water heat pump system

EKHBH/X008BB

4PW62570-1A – 01.2011

Domestic water heating

When domestic water heating mode is enabled (either manually by
the user, or automatically through a schedule timer) the target
domestic hot water temperature will be achieved by a combination of
the heat exchanger coil and the electrical booster heater

(2)

heater

.

(1)

or backup

When the domestic hot water temperature is below the user
configured set point, the 3-way valve will be activated to heat the
domestic hot water by means of the heat pump. In case of large
domestic hot water demand or a high domestic hot water
temperature setting, the booster heater (11)

(3)

or backup heater (4)

can provide auxiliary heating.

INFORMATION

Only for EKHW*:

■ At low outdoor temperatures when space heating
demand is higher, the indoor unit can be configured to
have the domestic hot water heated by the booster
heater exclusively. This assures that the full capacity
of the heat pump is available for space heating.

■ Details on domestic hot water tank configuration for
low outdoor temperatures can be found under

"8.9. Field settings" on page 26, field settings [5-02]

to [5-04].

Only for EKHTS:

■ At low outdoor temperatures when space heating
demand is higher, the indoor unit can be configured to
have the domestic hot water heated the heat pump
and backup heater at the same time. This assures
that the interruption of space heating is limited to a
minimum.

■ Details on domestic hot water tank configuration for
low outdoor temperatures can be found under

"8.9. Field settings" on page 26, field settings [5-02]

to [5-04].

NOTICE

Be sure that the correct field settings are active or selected
according to the applicable tank type. See field settings in

"[4] Backup/booster heater operation and space heating
off temperature" on page 28 for more details.

Application 3

Space heating and cooling application with the room thermostat set
for heating/cooling connected to the indoor unit. Heating is provided

through floor heating loops and fan coil units. Cooling is provided
through the fan coil units only.

Domestic hot water is provided through the domestic hot water tank
which is connected to the indoor unit.

9

(4)

T

645321

7

M

6

1 Outdoor unit
2 Indoor unit
3 Heat exchanger
4 Backup heater
5 Pump
6 Shut-off valve
7 Motorised 3-way valve (delivered with domestic hot water

tank)

8 Motorised 2-way valve (field supply)

9 Collector (field supply)
10 Domestic hot water tank (optional)
11 Booster heater
12 Heat exchanger coil

FCU1...3 Fan coil unit (optional)

FHL1...3 Floor heating loop

T Room thermostat (optional)

(5)

(6)

Pump operation and space heating and cooling

According to the season, the customer will select heating or cooling
on the room thermostat (T). This selection is not possible by
operating the user interface.

When space heating/cooling is requested by the room thermostat
(T), the pump will start operating and the indoor unit (2) will switch to
"heating mode"/"cooling mode". The outdoor unit (1) will start
operating to achieve the target leaving hot/cold water temperature.

In case of cooling mode, the 2-way valve (8) will close as to prevent
cold water running through the floor heating loops (FHL).

8

M

11 12

FCU1

FHL1

10

FCU2

FHL2

FCU3

FHL3

(1) Only applicable for tank with built-in electrical booster heater (EKHW*).
(2) Only applicable for tank without electrical booster heater (EKHTS).
(3) Only applicable for tank with built-in electrical booster heater (EKHW*).
(4) Only applicable for tank without electrical booster heater (EKHTS).

EKHBH/X008BB

Indoor unit for air to water heat pump system

4PW62570-1A – 01.2011

(5) For tank without electrical booster heater (EKHTS), the backup heater will

be used in domestic water heating mode.

(6) Only applicable for tank with built-in electrical booster heater (EKHW*).

Installation manual

6

NOTICE

■ Make sure to connect the thermostat wires to the
correct terminals (see "Connection of the thermostat

cable" on page 21) and to configure the DIP switch

toggle switches correctly (see "8.2. Room thermostat

installation configuration" on page 24).

■ Wiring of the 2-way valve (8) is different for a NC
(normal closed) valve and a NO (normal open) valve!
Make sure to connect to the correct terminal numbers
as detailed on the wiring diagram.

The ON/OFF setting of the heating/cooling operation is done by the
room thermostat and cannot be done by the user interface on the
indoor unit.

Domestic water heating

(1)

Domestic water heating is as described under "Application 2" on

page 5.

Application 4

Space heating and cooling application without the room thermostat
connected to the indoor unit, but with the heating only room

thermostat (set heating only) controlling the floor heating and the
heating/cooling thermostat (set heating/cooling) controlling the fan
coil units. Heating is provided through floor heating loops and fan coil
units. Cooling is provided through the fan coil units only.

9

10

T4

T5

FCU2

FHL2

T6

FCU3

FHL3

T

7

645321

M

6

1 Outdoor unit
2 Indoor unit
3 Heat exchanger
4 Backup heater
5 Pump
6 Shut-off valve
7 Motorised 2-way valve to shut off the floor heating loops

during cooling operation (field supply)

8 Motorised 2-way valve for activation of the room thermostat

(field supply)

9 Collector (field supply)

10 By-pass valve (field supply)

FCU1...3 Fan coil unit (optional)

FHL1...3 Floor heating loop

T Heating only room thermostat (optional)

T4...6 Individual room thermostat for fan coil heated/cooled room

(optional)

FCU1

8

M

FHL1

Pump operation

With no thermostat connected to the indoor unit (2), the pump (5) can
be configured to operate either as long as the indoor unit is on, or
until the required water temperature is reached.

INFORMATION

Details on pump configuration can be found under

"8.3. Pump operation configuration" on page 24.

Space heating and cooling

According to the season, the customer will select heating or cooling
through the user interface on the indoor unit.

The outdoor unit (1) will operate in heating mode or cooling mode to
achieve the target leaving water temperature.

With the unit in heating mode, the 2-way valve (7) is open. Hot water
is provided to both the fan coil units and the floor heating loops.

With the unit in cooling mode, the 2-way valve (7) is closed to prevent
cold water running through the floor heating loops (FHL).

NOTICE

■ When closing several loops in the system by remotely
controlled valves, it might be required to install a by­pass valve (10) to avoid the flow switch safety device
from being activated. See also "Application 2" on

page 5.

■ Wiring of the 2-way valve (7) is different for a NC
(normal closed) valve and a NO (normal open) valve!
Make sure to connect to the correct terminal numbers
as detailed on the wiring diagram.

The ON/OFF setting of the heating/cooling operation is done by the
user interface on the indoor unit.

Application 5

Space heating with an auxiliary boiler (alternating operation)

Space heating application by either the Daikin indoor unit or by an
auxiliary boiler connected in the system. The decision whether either
the EKHB* indoor unit or the boiler will operate can be achieved by
an auxiliary contact or an EKHB* indoor controlled contact.

The auxiliary contact can e.g. be an outdoor temperature thermostat,
an electricity tariff contact, a manually operated contact, etc. See

"Field wiring configuration A" on page 8.

The EKHB* indoor unit controlled contact (also called 'permission
signal for the auxiliary boiler') is determined by the outdoor
temperature (thermistor located at the outdoor unit). See "Field wiring

configuration B" on page 8.

Bivalent operation is only possible for space heating operation, not
for the domestic water heating operation. Domestic hot water in such
an application is always provided by the domestic hot water tank
which is connected to the Daikin indoor unit.

The auxiliary boiler must be integrated in the piping work and in the
field wiring according to the illustrations below.

CAUTION

■ Be sure that the boiler and the integration of the boiler
in the system is in accordance with the applicable
legislation.

■ Daikin can not be put responsible for incorrect or
unsafe situations in the boiler system.

(1) When the unit is configured for restricted power supply condition mode,

see "Appendix" on page 51.

Installation manual

7

Indoor unit for air to water heat pump system

EKHBH/X008BB

4PW62570-1A – 01.2011

Field wiring configuration B

1

FHL1...3 Floor heating loop

4532

6

1 Outdoor unit
2 Indoor unit
3 Heat exchanger
4 Backup heater
5 Pump
6 Shut-off valve
7 Motorised 3-way valve (delivered with domestic hot water

tank)

8 Non-return valve (field supply)

9 Shut-off valve (field supply)
10 Collector (field supply)
11 Boiler (field supply)
12 Aquastat valve (field supply)
13 Domestic hot water tank (optional)
14 Booster heater
15 Heat exchanger coil

Field wiring configuration A

L

Com

H

EKHB*/auto

/ Boiler

A

K1A

N

BTIBoiler thermostat input

A Auxiliary contact (normal closed)

H Heating demand room thermostat (optional)
K1A Auxiliary relay for activation of EKHB* unit (field supply)
K2A Auxiliary relay for activation of boiler (field supply)

K2A

6 7

12

14

(1)

(2)

EKHB*

8

M

8

9

11

9

10

X2M

123 4

K1A

Com

HC

EKRTR*

Operation

Com Common room thermostat (optional)

K1A Auxiliary relay for activation of boiler unit (field supply)

KCR Permission signal for the auxiliary boiler

EKHB*

X2M

3 4

12

K1A

Com

H

C

EKRTW*

BTIBoiler thermostat input

C Cooling demand room thermostat (optional)
H Heating demand room thermostat (optional)

EKRP1HB*

KCR

X1 X2

X

Y

B

TI

K1A

■ Configuration A

15

FHL1

FHL2

13

FHL3

When the room thermostat requests heating, either the EKHB*
unit or the boiler starts operating, depending on the position of
the auxiliary contact (A).

■ Configuration B

When the room thermostat requests heating, either the EKHB*
unit or the boiler starts operating, depending on the outdoor
temperature (status of "permission signal for the auxiliary
boiler").
When the permission is given towards the boiler, the space
heating operation by the EKHB* unit will be automatically
switched off.
For more details see field setting [C-02~C-04].

NOTICE

■ Configuration A

Make sure that auxiliary contact (A) has sufficient
differential or time delay so as to avoid frequent
changeover between the EKHB* unit and the boiler. If
the auxiliary contact (A) is an outdoor temperature
thermostat, make sure to install the thermostat in the
shade, so that it is not influenced or turned ON/OFF
by the sun.

Configuration B

Make sure that the bivalent hysteresis [C-04] has
sufficient differential to avoid frequent changeover
between the EKHB* unit and the boiler. As the
outdoor temperature is measured via the outdoor unit,
air thermistor make sure to install the outdoor unit in
the shade, so that it is not influenced by the sun.
Frequent switching may cause corrosion of the boiler
in an early stage. Contact the manufacturer of the
boiler.

■ During heating operation of the EKHB* unit, the unit

K1A

EKHB*

X2M

123 4

K2A

B

TI

Y

X

will operate so as to achieve the target leaving water
temperature as set on the user interface. When
weather dependent operation is active, the water
temperature is determined automatically depending
on the outdoor temperature.
During heating operation of the boiler, the boiler will
operate so as to achieve the target leaving water
temperature as set on the boiler controller.
Never set the target leaving water temperature set
point on the boiler controller above 55°C.

■ Make sure to only have 1 expansion vessel in the
water circuit. An expansion vessel is already
premounted in the Daikin indoor unit.

(1) For tank without electrical booster heater (EKHTS), the backup heater will

be used in domestic water heating mode.

(2) Only applicable for tank with built-in electrical booster heater (EKHW*).

EKHBH/X008BB

Indoor unit for air to water heat pump system

4PW62570-1A – 01.2011

NOTICE

Make sure to configure the DIP switch SS2-3 on the PCB
of the EKHB* switch box correctly. Refer to "8.2. Room

thermostat installation configuration" on page 24.

For configuration B: Make sure to configure the field
settings [C-02, C-03 and C-04] correctly. Refer to "Bivalent

operation" on page 36.

Installation manual

8

NOTICE

Make sure that return water to the EKHB* heat exchanger
never exceeds 55°C.

For this reason, never put the target leaving water
temperature set point on the boiler controller above 55°C
and install an aquastat

(a)

valve in the return water flow of

the EKHB* unit.
Make sure that the non-return valves (field supply) are

correctly installed in the system.
Make sure that the room thermostat EKRTR or EKRTW

are not frequently turned ON/OFF.
Daikin shall not be held liable for any damage resulting

from failure to observe this rule.

(a) The aquastat valve must be set for 55°C and must operate to close the return

water flow to the unit when the measured temperature exceeds 55°C. When the
temperature drops to a lower level, the aquastat valve must operate to open the
return water flow to the EKHB* unit again.

Application 6

Space heating with room thermostat application through floor heating
loops and fan coil units. The floor heating loops and fan coil units
require different operating water temperatures.

The floor heating loops require a lower water temperature in heating
mode compared to fan coil units. To achive these two set points, a

mixing station is used to adapt the water temperature according to
requirements of the floor heating loops. The fan coil units are directly
connected to the indoor unit water circuit and the floor heating loops
after the mixing station. The control of this mixing station is not done
by the indoor unit.

The operation and configuration of the field water circuit is the
responsibility of the installer.

Daikin only offers a dual set point control function. By this function
two set points can be generated. Depending on the required water
temperature (floor heating loops and/or fan coil units are required)
first set point or second set point can be activated.

INFORMATION

Manual permission towards the EKHB* unit on the boiler.
In case only the EKHB* unit should operate in space

heating mode, disable the bivalent operation via setting
[C-02].

In case only the boiler should operate in space heating
mode, increase the bivalent ON temperature [C-03] to
25°C.

Domestic water heating

(1)

Domestic water heating is as described under "Application 2" on

page 5.

B

7

T1

A

FCU1

FHL1

8

FCU2

FHL2

FCU3

FHL3

T2

645321

6

9

1 Outdoor unit
2 Indoor unit
3 Heat exchanger
4 Backup heater
5 Pump
6 Shut-off valve
7 Collector zone B (field supply)
8 Collector zone A (field supply)
9 Mixing station (field supply)

FCU1...3 Fan coil unit (optional)

FHL1...3 Floor heating loop

T1 Room thermostat for zone A (optional)
T2 Room thermostat for zone B (optional)

INFORMATION

■ The advantage of the dual set point control is that the
heat pump will/can operate at the lowest required
leaving water temperature when only floor heating is
required. Higher leaving water temperatures are only
required in case fan coil units are operating.
This results in a better performance of the heat pump.

■ The hydraulic balance is very important. (Hydrobox ­mixing station - FCU1...3)

(1) When the unit is configured for restricted power supply condition mode,

see "Appendix" on page 51.

Installation manual

9

Indoor unit for air to water heat pump system

EKHBH/X008BB

4PW62570-1A – 01.2011

Pump operation and space heating

When the room thermostat for the floor heating loop (T1) and the fan
coil units (T2) are connected to the indoor unit, the pump (5) will
operate when there is a request for heating from T1 and/or T2. The
outdoor unit will start operating to achieve the target leaving water
temperature. The target leaving water temperature depends on which
room thermostat is requesting heating.

Set point Field setting Thermo status

Zone A First UI ON OFF ON OFF
Zone B Second [7-03] OFF ON ON OFF
Resulting water temperature UI [7-03] [7-03] —
Result pump operation ON ON ON OFF

When the room temperature of both zones is above the thermostat
set point, the outdoor unit and pump will stop operating.

NOTICE

■ Make sure to connect the thermostat wires to the
correct terminals (see "5. Overview of the indoor unit"

on page 10).

■ Make sure to configure the field settings [7-02], [7-03]
and [7-04] correctly. Refer to "Dual set point control"

on page 33.

■ Make sure to configure the DIP switch SS2-3 on the
PCB of the EKHBH switch box correctly. Refer to

"8.2. Room thermostat installation configuration" on
page 24.

■ It is the installers responsibility to make sure no
unwanted situations can occur (e.g. too high water
temperatures towards floor heating loops, etc.)

■ Be aware that the actual water temperature through
the floor heating loops depends on the control and
setting of the mixing station.

5. OVERVIEW OF THE INDOOR UNIT

5.1. Opening the indoor unit

■ The front flap on the indoor unit cover gives access to the
manometer and user interface.

■ The indoor unit cover can be removed by removing the 2 bottom
screws and unhitching the cover.

INFORMATION

■ The request signals for space heating can be
implemented in two different ways (installer choice).

- Thermo ON/OFF signal from room thermostat

- Status signal (active/not active) from the mixing

station

■ Daikin does not offer any type of mixing station. Dual
set point control only provides the possibility to use
two set points.

■ When only zone A request heating, zone B will be fed
with water at a temperature equal to the first set point.
This can lead to unwanted heating of zone B.

■ When only zone B request heating, the mixing station
will be fed with water at a temperature equal to the
second set point.
Depending on the control of the mixing station, the
floor heating loop can still receive water at a
temperature equal to set point of the mixing station.

■ At this type of application heating/cooling selection
always has to be done on the user interface. Refer to

"Dual set point control" on page 33 for more details.

4. ACCESSORIES

4.1. Accessories supplied with the indoor unit

INFORMATION

Make sure to fix the cover with the screws when installing
the cover (screws are delivered as accessory).

■ To gain access to the switch box components – e.g. to connect
the field wiring – the switch box service panel can be removed.
Thereto, loosen the front screws and unhitch the switch box
service panel.

DANGER: ELECTRICAL SHOCK

See "2. General safety precautions" on page 2.

DANGER: DO NOT TOUCH PIPING AND INTERNAL
PA RT S

See "2. General safety precautions" on page 2.

See figure 1

1 Installation manual
2 Operation manual
3 Shut-off valve
4 Wiring diagram sticker (inside indoor unit cover)
5 Indoor unit cover fixing screw

EKHBH/X008BB

Indoor unit for air to water heat pump system

4PW62570-1A – 01.2011

Installation manual

10

3

11

5.2. Main components

20

19
18

17

3

16

14

21

10
13

12

1. Air purge valve

Remaining air in the water circuit will be automatically removed
via the air purge valve.

2. Backup heater

(1)

The backup heater consists of an electrical heating element in
the backup heater vessel that will provide additional heating
capacity to the water circuit if the heating capacity of the outdoor
unit is insufficient due to low outdoor temperatures.

3. Temperature sensors

33

Four temperature sensors determine the water and refrigerant
temperature at various points in the water circuit.

4. Switch box

The switch box contains the main electronic and electrical parts
of the indoor unit.

5. Heat exchanger

3

3

6. Expansion vessel (10 l)

7. User interface

The user interface allows the installer and user to set up, use
and maintain the unit.

8. Refrigerant liquid connection

9. Refrigerant gas connection

2

1

10. Shut-off valves (accessory)

The shut-off valves on the water inlet connection and water
outlet connection allow isolation of the indoor unit water circuit
side from the residential water circuit side. This facilitates
draining and filter replacement of the indoor unit.

11. Water inlet connection

12. Water outlet connection

13. Drain and fill valves

1

14. Water filter

The water filter removes dirt from the water to prevent damage
to the pump or blockage of the evaporator. The water filter must
be cleaned on a regular base. See "10. Maintenance and

service" on page 45.

2

15. Manometer

The manometer allows readout of the water pressure in the
water circuit.

3

16. Flow switch

The flow switch checks the flow in the water circuit and protects

4

the heat exchanger against freezing and the pump against
damage.

17. Pump

The pump circulates the water in the water circuit.

5

6

18. Backup heater thermal protector

The backup heater is equipped with a thermal protector. The
thermal protector is activated when the temperature becomes
too high.

19. Backup heater thermal fuse

The backup heater is equipped with a thermal fuse. The thermal

3

fuse is blown when the temperature becomes too high (higher
than the backup heater thermal protector temperature).

7

15

3

20. Pressure relief valve

The pressure relief valve prevents excessive water pressure in
the water circuit by opening at 3 bar and discharging some
water.

21. Pressure relief valve hose

8
9

13
10

11

The actual outlet of the pressure relief valve. Make sure to
provide a proper drain.

Installation manual

11

(1) When the unit is configured for restricted power supply condition mode,

see "Appendix" on page 51.

Indoor unit for air to water heat pump system

EKHBH/X008BB

4PW62570-1A – 01.2011

5.3. Switch box main components

14

12

11

10

X9A

X13A

SS2

FU1

9

TR1

K1M K2M

K3M K6M

A1P

F2B F3B F1B

K5M

FU2

1

2
3

1

4
5

5

13

12. X9A socket

The X9A socket receives the thermistor connector (only for
installations with domestic hot water tank).

13. Fuse FU2 (in line fuse)

14. Transformer TR1

15. A4P

Digital I/O PCB (only for installations with solar kit or digital I/O
PCB kit).

16. X6YA/X6YB/X6Y

(4)

Connectors for connecting to a normal kWh rate power supply.
See also "Connection to a benefit kWh rate power supply" on

page 22.

NOTICE

The electrical wiring diagram can be found on the inside of
the switch box cover.

5.4. Functional diagram

32 4 8

5 6 7

15

6

A4P

X2M X4M

16

8

6

8

X1M

X3M

7

1. Backup heater contactors K1M, K2M, K5M and K6M.

2. Main PCB

The main PCB (Printed Circuit Board) controls the functioning of
the unit.

3. Booster heater contactor K3M (only for installations with

domestic hot water tank)

4. Booster heater circuit breaker F2B (only for installations with

domestic hot water tank)

(1)

(2)

The circuit breaker protects the booster heater in the domestic
hot water tank against overload or short circuit.

5. Backup heater circuit breaker F1B, F3B

The circuit breaker protects the backup heater electrical circuit
against overload or short circuit.

6. Te r minal blocks

The terminal blocks allow easy connection of field wiring.

7. Cable tie mountings

The cable tie mountings allow to fix the field wiring with cable
ties to the switch box to ensure strain relief.

8. Te r minal blocks X3M, X4M (only for installations with domestic

hot water tank)

(3)

9. PCB fuse FU1

10. DIP switch SS2

The DIP switch SS2 provides 4 toggle switches to configure
certain installation parameters. See "8.1. DIP switch settings

overview" on page 23.

11. X13A socket

The X13A socket receives the K3M connector (only for
installations with domestic hot water tank).

R1T

t >

H

O

2

R3T

t >

1 Outdoor unit
2 Indoor unit
3 Expansion vessel
4 Manometer
5 Air purge valve
6 Pressure relief valve
7 Backup heater
8 Pump
9 Flow switch

10 Shut-off valve water outlet with drain valve (field

installation)

11 Shut-off valve water inlet with drain valve (field installation)
12 Filter

13 Heat exchanger
R1T Outlet water heat exchanger thermistor
R2T Outlet water backup heater thermistor
R3T Refrigerant liquid side thermistor
R4T Inlet water thermistor

R2T

t >

R4T

t >

12131

9

10

11

(1) Only applicable for tank with built-in electrical booster heater (EKHW*).
(2) Only applicable for tank with built-in electrical booster heater (EKHW*).
(3) Only applicable for tank with built-in electrical booster heater (EKHW*).

EKHBH/X008BB

Indoor unit for air to water heat pump system

4PW62570-1A – 01.2011

(4) When the unit is configured for restricted power supply condition mode,

see "Appendix" on page 51.

Installation manual

12

6. INSTALLATION OF THE INDOOR UNIT

6.1. Selecting an installation location

WARNING

Be sure to provide for adequate measures in order to
prevent that the unit be used as a shelter by small animals.

CAUTION

■ Small animals making contact with electrical parts can
cause malfunctions, smoke or fire. Please instruct the
customer to keep the area around the unit clean and
clear.

■ The equipment is not intended for use in a potentially
explosive atmosphere.

■ Be sure that sufficient precautions are taken, in
accordance with the applicable legislation, in case of
refrigerant leakage.

■ When installing the unit in a small room, take
measures in order to keep the refrigerant
concentration from exceeding allowable safety limits
in the event of a refrigerant leak.
Excessive refrigerant concentrations in a closed room
can lead to oxygen deficiency.

■ Where flammable gases may leak, where carbon fibre
or ignitable dust is suspended in the air or where
volatile flammables, such as thinner or gasoline, are
handled.
Such gases may cause a fire.

The unit is to be wall mounted in an indoor location that meets the
following requirements:

■ The installation location is frost-free.

■ The space around the unit is adequate for servicing. (See

figure 2).

■ The space around the unit allows for sufficient air circulation.

■ There is a provision for condensate drain (only for EKHBX

models with drain pan kit EKHBDP) and pressure relief valve
blow-off.

■ The installation surface is a flat and vertical non-combustible
wall, capable of supporting the operation weight of the unit (see

"12. Technical specifications" on page 50).

■ All piping lengths and distances have been taken into
consideration.

Requirement Value

Maximum allowable refrigerant piping length between
outdoor unit and indoor unit

Minimum required refrigerant piping length between
outdoor unit and indoor unit

Maximum allowable height difference between
outdoor unit and indoor unit

Maximum allowable distance between the 3-way
valve and the indoor unit (only for installations with
domestic hot water tank).

Maximum allowable distance between the domestic
hot water tank and the indoor unit (only for
installations with domestic hot water tank). The
thermistor cable supplied with the domestic hot water
tank is 12 m in length.

30 m

3 m

20 m

3 m

10 m

■ Do not install the unit in places often used as work place.
In case of construction works (e.g. grinding works) where a lot of
dust is created, the unit must be covered.

■ Ta ke care that in the event of a water leak, water can not cause
any damage to the installation space and surroundings.

■ Do not place any objects or equipment on top of the unit.

■ Install the power wire at least 1 meter away from televisions or

radios to prevent image interference or noise.
(Depending on the radio waves, a distance of 1 meter may not
be sufficient to eliminate the noise.)

■ Do not install the unit in places such as the following:

■ Where there is mist of mineral oil, oil spray or vapour.

Plastic parts may deteriorate, and cause them to fall out or
water to leak.

■ Where corrosive gas, such as sulphurous acid gas, is

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

refrigerant to leak.

■ Where there is machinery which emits electromagnetic

waves.
Electromagnetic waves may disturb the control system, and

cause malfunction of the equipment.

■ Where the air contains high levels of salt.

■ Where voltage fluctuates a lot, such as that in factories.

■ In vehicles or vessels.

■ Where acidic or alkaline vapour is present.

INFORMATION

If the installation is equipped with a domestic hot water
tank (optional), please refer to the domestic hot water tank
installation manual.

6.2. Dimensions and service space

Unit of measurement: mm

Dimensions of the unit, see figure 3.

1 Flexible drain hose
2 Water outlet connection
3 Water inlet connection
4 Refrigerant liquid connection
5 Refrigerant gas connection

FBSP Female British Standard Pipe

MBSP Male British Standard Pipe

Required service space, see figure 2.

■ During normal operation the hydrobox unit will produce sound
which could be observed as noise. The sound origin can be
water pump operation and/or contactor activation. Therefore it is
advisable to install the hydrobox unit on a firm wall and not in nor
close to a sound sensitive environment (e.g. bedroom).

■ Do not install the unit in places with high humidity (e.g.
bathroom).

Installation manual

13

Indoor unit for air to water heat pump system

EKHBH/X008BB

4PW62570-1A – 01.2011

6.3. Inspecting, handling and unpacking the unit

6.4. Mounting the indoor unit

■ The indoor unit is packed in a cardboard box, fixed by straps on

a wooden pallet.

■ At delivery, the unit must be checked and any damage must be

reported immediately to the carrier claims agent.

■ Check if all indoor unit accessories (see "4. Accessories" on

page 10) are enclosed.

■ Bring the unit as close as possible to its final installation position

in its original package in order to prevent damage during
transport.

■ The indoor unit weighs approximately 46 kg and should be lifted

by two persons using the two lifting bars provided.

CAUTION

■ Do not grasp the switch box or piping to lift the unit!
Tw o lifting bars are provided to lift the unit.

■ Safely dispose of packing materials. Packing
materials, such as nails and other metal or wooden
parts, may cause stabs or other injuries.

WARNING

Tear apart and throw away plastic packaging bags so that
children will not play with them. Children playing with
plastic bags face danger of death by suffocation.

CAUTION

The weight of the indoor unit is approximately 46 kg. Two
persons are required to mount the unit.

1 Put the installation pattern (see packing) on the wall and mark

the fixation positions (2 on top (● T) and 2 at the bottom (● B)).
Make sure that the marks (2 by 2) are completely level and the

dimensions of the marks are corresponding according to

figure 4.

When the unit is not installed level, air might get trapped in the
water circuit resulting in malfunctioning of the unit.
Pay special attention to this when installing an EKHBX model to
prevent overflow of the drain pan.

2 Drill 4 holes and install 4 plugs (suitable for M10).

3 Put the screws in top plugs and hang the indoor unit on the top

screws.

4 Put the screws in bottom plugs and fix the screws firmly.

1

2

3

EKHBH/X008BB

Indoor unit for air to water heat pump system

4PW62570-1A – 01.2011

1

Installation manual

4

14

6.5. Installation of the EKHBDP drain pan kit (only for

75°C (EKHTS)
65°C (EKHW*)

65°C

EKHBX models)

For heating/cooling models, it is necessary to install the drain pan kit
(see "4. Accessories" on page 10).

During cooling operation, water vapour (humidity) in the air might
condense to liquid and collect on the cold refrigerant and water pipes.
This water is collected in the drain pan, which must be connected to a
drain.

For installation instructions, refer to the instruction sheet delivered
with the drain pan kit.

CAUTION

Make sure to position the pressure relief valve hose end in
the drain pan. Failure to do so might lead to water coming
into contact with electrical parts, resulting in electrical
shocks or short-circuit of the electrical system.

6.8. General precautions concerning water circuit

Before continuing the installation of the unit, check the following
points:

■ The maximum water pressure is 4 bar.

■ The maximum water temperature during space heating is 65°C

(safety device setting) and 75°C
operation (safety device setting). Make sure that the installed
piping and piping accessories (e.g., valve, connections,...) can
withstand the temperatures as shown in the figure below.

75°C (EKHTS)
65°C (EKHW*)

(1)

during domestic hot water

65°C

9

6.6. Refrigerant pipework

For all guidelines, instructions and specifications regarding
refrigerant pipework between the indoor unit and the outdoor unit,
please refer to the outdoor unit installation manual.

The location of the gas pipe and liquid pipe on the indoor unit is
shown under "5.2. Main components" on page 11.

Refrigerant piping

specifications

Gas pipe connection 15.9 mm (5/8 inch) 15.9 mm (5/8 inch)
Liquid pipe connection 6.4 mm (1/4 inch) 6.4 mm (1/4 inch)

Indoor unit Outdoor unit

CAUTION

When connecting the refrigerant pipes, always use two
wrenches/spanners for tightening or loosening nuts!
Failure to do so can result in damaged piping connections
and leaks.

6.7. Water pipework

Checking the water circuit

The units are equipped with a water inlet and water outlet for
connection to a water circuit. This circuit must be provided by an
installer and must comply with the applicable legislation.

NOTICE

The unit is only to be used in a closed water system.
Application in an open water circuit can lead to excessive
corrosion of the water piping.

T

645321

7

M

6

1 Outdoor unit
2 Indoor unit
3 Heat exchanger
4 Backup heater
5 Pump
6 Shut-off valve
7 Motorised 3-way valve (delivered with domestic hot water

tank)

8 Motorised 2-way valve (field supply)

9 Collector (field supply)
10 Domestic hot water tank (optional)
11 Booster heater
12 Heat exchanger coil

FCU1...3 Fan coil unit (optional)

FHL1...3 Floor heating loop

T Room thermostat (optional)

(2)

(3)

8

M

11 12

FCU1

FHL1

10

FCU2

FHL2

FCU3

FHL3

■ Provide adequate safeguards in the water circuit to be sure that
the water pressure will never exceed the maximum allowable
working pressure (4 bar).

■ Tw o shut-off valves are delivered with the unit. To facilitate
service and maintenance, install one at the water inlet and one
at the water outlet of the indoor unit. Mind position of the shut-off
valves. Orientation of the integrated drain and fill valves is
important for servicing. See figure 3.

■ Drain taps must be provided at all low points of the system to
permit complete drainage of the circuit during maintenance.
Tw o drain valves integrated in the shut-off valves are provided to
drain the water from the indoor unit water system.

■ Make sure to provide a proper drain for the pressure relief valve
to avoid any water coming into contact with electrical parts.

Installation manual

15

(1) Be sure that the correct field settings are active or selected according to

the applicable tank type. See field settings in "[4] Backup/booster heater

operation and space heating off temperature" on page 28 for more details.

(2) For tank without electrical booster heater (EKHTS), the backup heater will

be used in domestic water heating mode.

(3) Only applicable for tank with built-in electrical booster heater (EKHW*).

Indoor unit for air to water heat pump system

EKHBH/X008BB

4PW62570-1A – 01.2011

■ Air vents must be provided at all high points of the system. The
vents should be located at points which are easily accessible for
servicing. An automatic air purge is provided inside the indoor
unit. Check that this air purge valve is not tightened too much so
that automatic release of air in the water circuit remains
possible.

■ Ta ke care that the components installed in the field piping can
withstand the water pressure and water temperature.

■ Always use materials which are compatible with water used in
the system and with the materials used on the indoor unit.

If air, moisture or dust gets in the water circuit, problems may occur.
Therefore, always take into account the following when connecting
the water circuit:

■ Use clean pipes only.

■ Hold the pipe end downwards when removing burrs.

■ Cover the pipe end when inserting it through a wall so that no

dust and dirt enter.

■ Use a good thread sealant for the sealing of the connections.

■ When using non-brass metallic piping, make sure to insulate

both materials from each other to prevent galvanic corrosion.

■ Because brass is a soft material, use appropriate tooling for
connecting the water circuit. Inappropriate tooling will cause
damage to the pipes.

■ Select piping diameter in relation to required water flow and
available external static pressure of the pump.

■ The minimum required water flow for the indoor unit operation is
12 l/min. When the water flow is lower than this minimum value,
flow error 7H will be displayed and the operation of the indoor
unit will be stopped.

■ Never use Zn-coated parts in the water circuit. Excessive
corrosion of these parts may occur as copper piping is used in
the unit's internal water circuit.

■ When using a 3-way valve in the water circuit.
It is very important to guarantee full separation between
domestic hot water and floor heating water circuit.

■ When using a 3-way valve or a 2-way valve in the water circuit,
the maximum change over time of the valve shall be less than
60 seconds.

NOTICE

It is strongly recommended to install an additional filter on
the heating water circuit. Especially to remove metallic
particles from the field heating piping, it is advised to use a
magnetic or cyclone filter which can remove small
particles. Small particles can damage the unit and will not
be removed by the standard filter of the heat pump unit.

Checking the water volume and expansion vessel
pre-pressure

The unit is equipped with an expansion vessel of 10 litre which has a
default pre-pressure of 1 bar.

To assure proper operation of the unit, the pre-pressure of the
expansion vessel might need to be adjusted and the minimum and
maximum water volume must be checked.

1 Check that the total water volume in the installation, excluding

the internal water volume of the indoor unit, is 10 l minimum.
Refer to "12. Technical specifications" on page 50 to know the
internal water volume of the indoor unit.

INFORMATION

In most applications this minimum water volume will have a
satisfying result.

In critical processes or in rooms with a high heat load
though, extra water volume might be required.

NOTICE

When circulation in each space heating loop is controlled
by remotely controlled valves, it is important that this
minimum water volume is kept even if all the valves are
closed.

Example

645321

6

1 Outdoor unit
2 Indoor unit
3 Heat exchanger
4 Backup heater
5 Pump
6 Shut-off valve
7 Collector (field supply)
8 By-pass valve (field supply)

FHL1...3 Floor heating loop

T1...3 Individual room thermostat (optional)

M1...3 Individual motorised valve to control the floor

heating loop (field supply)

(1)

7

M1T1M2T2M3

FHL1

FHL2

8

T3

FHL3

EKHBH/X008BB

Indoor unit for air to water heat pump system

4PW62570-1A – 01.2011

2 Using the table below, determine if the expansion vessel pre-

pressure requires adjustment.

(1) When the unit is configured for restricted power supply condition mode,

see "Appendix" on page 51.

Installation manual

16

3 Using the table and instructions below, determine if the total

water volume in the installation is below the maximum allowed
water volume.

Installation
height
difference

(a)

≤7 m

>7 m

No pre-pressure adjustment
required.

Actions required:

• pre-pressure must be
increased, calculate
according to "Calculating the

pre-pressure of the
expansion vessel"

• check if the water volume is
lower than maximum allowed
water volume (use graph
below)

(a) Installation height difference: height difference (m) between the highest point of

the water circuit and the indoor unit. If the indoor unit is located at the highest
point of the installation, the installation height is considered 0 m.

≤280 l >280 l

Water volume

Actions required:

• pre-pressure must be
decreased, calculate
according to "Calculating the

pre-pressure of the
expansion vessel"

• check if the water volume is
lower than maximum allowed
water volume (use graph
below)

Expansion vessel of the unit
too small for the installation.

Example 2

The indoor unit is installed at the highest point in the water circuit.
The total water volume in the water circuit is 350 l.

Result:

■ Since 350 l is higher than 280 l, the pre-pressure must be
decreased (see table above).

■ The required pre-pressure is:
Pg = (H/10 + 0.3) bar = (0/10 + 0.3) bar = 0.3 bar

■ The corresponding maximum water volume can be read from
the graph: approximately 410 l.

■ Since the total water volume (350 l) is below the maximum water
volume (410 l), the expansion vessel suffices for the installation.

Setting the pre-pressure of the expansion vessel

When it is required to change the default pre-pressure of the
expansion vessel (1 bar), keep in mind the following guidelines:

■ Use only dry nitrogen to set the expansion vessel pre-pressure.

■ Inappropriate setting of the expansion vessel pre-pressure will

lead to malfunction of the system. Therefore, the pre-pressure
should only be adjusted by an installer.

Connecting the water circuit

Calculating the pre-pressure of the expansion vessel

The pre-pressure (Pg) to be set depends on the maximum
installation height difference (H) and is calculated as below:

Pg=(H/10+0.3) bar

Checking the maximum allowed water volume

To determine the maximum allowed water volume in the entire circuit,
proceed as follows:

1 Determine for the calculated pre-pressure (Pg) the

corresponding maximum water volume using the graph below.

2 Check that the total water volume in the entire water circuit is

lower than this value.

If this is not the case, the expansion vessel inside the indoor unit is
too small for the installation.

2.5

2

1.5

1

pre-pressure [bar]

0.5

0.3

10

pre-pressure = pre-pressure
maximum water volume = maximum water volume

100

500

150 200 250 300 350 400 450

maximum water volume [l]

Example 1

The indoor unit is installed 5 m below the highest point in the water
circuit. The total water volume in the water circuit is 100 l.

In this example, no action or adjustment is required.

Water connections must be made in accordance with the applicable
legislation and the outlook diagram delivered with the unit, respecting
the water in- and outlet.

NOTICE

Be careful not to deform the unit piping by using excessive
force when connecting the piping. Deformation of the
piping can cause the unit to malfunction.

6.9. Charging water

1 Connect the water supply to a drain and fill valve (see "5.2. Main

components" on page 11).

2 Make sure the automatic air purge valve is open (at least 2

turns).

3 Fill with water until the manometer indicates a pressure of

approximately 2.0 bar. Remove air in the circuit as much as
possible using the air purge valves. Air present in the water
circuit might cause malfunctioning of the backup heater.

4 Check that the backup heater vessel is filled with water by

opening the pressure relief valve. Water must flow out of the
valve.

INFORMATION

■ During filling, it might not be possible to remove all air
in the system. Remaining air will be removed through
the automatic air purge valves during first operating
hours of the system. Additional filling with water
afterwards might be required.

■ The water pressure indicated on the manometer will
vary depending on the water temperature (higher
pressure at higher water temperature).
However, at all times water pressure should remain
above 0.3 bar to avoid air entering the circuit.

■ The unit might dispose some excessive water through
the pressure relief valve.

■ Water quality must be according to EU directive 98/
83 EC.

Installation manual

17

Indoor unit for air to water heat pump system

EKHBH/X008BB

4PW62570-1A – 01.2011