Daikin EHVZ04S18DA6V, EHVZ08S18DA6V, EHVZ08S23DA6V, EHVZ08S18DA9W, EHVZ08S23DA9W user guide manual

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Installation manual

Daikin Altherma – Low temperature split

EHVZ04S18DA6V(G)

EHVZ08S18DA6V(G) EHVZ08S23DA6V(G) EHVZ08S18DA9W(G) EHVZ08S23DA9W(G)

Installation manual

Daikin Altherma – Low temperature split

English

Directivelor, cu amendamentele respective.

<A>

<C>

DEKRA (NB0344)

2192529.0551-EMC

DAIKIN.TCF.034/09-2017

Direktive z vsemi spremembami.

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Direktiver, med senere ændringer.

Direktiv, med företagna ändr ngar.

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D rectives, as amended.

deklaruje na własną i wyłączną odpowiedzialność, że urządzen a, których ta deklaracja dotyczy:

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

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

kinnitab oma täiel kul 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 deklarac ja:

ar pilnu atbildību apliec na, ka tālāk aprakstītās iekārtas, uz kurām attiecas šī deklarāc ja:

vyhlasuje na vlastnú zodpovednosť, že zariadenie, na ktoré sa vzťahuje toto vyhlásenie:

tamamen kendi sorumluluǧunda olmak üzere bu bildirinin ilg li olduǧu donanımının aşaǧıdaki gibi olduǧunu beyan eder:

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

spełn ają 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 cond ţia ca acestea să fie utilizate în conformitate cu

instrucţ unile noastre:

skladni z naslednjimi standardi n drugimi normativi, pod pogojem, da se uporabljajo v skladu z našimi navod li:

on vastavuses järgmis(t)e standardi(te)ga või teiste normatiivsete dokumentidega, kui ne d kasutatakse vastavalt me e juhend tele:

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

atit nka žemiau nurodytus standartus r (arba) kitus norminius dokumentus su sąlyga, kad yra naudojami pagal mūsų nurodymus:

tad, ja l etoti atbilstoši ražotāja norādījumiem, atbilst sekojošiem standartiem un citiem normatīviem dokumentiem:

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

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návodom:

D rektiven, gemäß Änderung.

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

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Direktiivid koos muudatustega.

Директиви, с техните изменения.

Direktyvose su papildymais.

Direktīvās un to papildinājumos.

Smernice, v platnom znení.

Değişt r lmiş halleriyle Yönetmelikler.

Direktiver, med foretatte endringer.

Direktiivejä, sellaisina kuin ne ovat muutettuina.

v platném znění.

Smjernice, kako je izmijenjeno.

irányelv(ek) és módosításaik rendelkezése t.

z późniejszymi poprawkami.

както е изложено в <A> и оценено положително от

съгласно Сертификата<C>.

kaip nustatyta <A> ir kaip teig amai nuspręsta pagal

Sertifikatą<C>.

kā norādīts <A> un atb lstoši pozitīvajam vērtējumam

saskaņā ar sertifikātu<C>.

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

s osvedčením<C>.

<A>’da belirtildiği g bi ve <C>Sertifikasına göre

tarafından olumlu olarak değerlendirildiği gibi.

D rectives, telles que modifiées.

R chtlijnen, zoals geamendeerd.

D rectivas, según lo enmendado.

D rettive, come da modif ca.

Οδηγιών, όπως έχουν τροποποιηθεί.

D rectivas, conforme alteração em.

Директив со всеми поправками.

21Забележка*

22Pastaba*

23Piezīmes*

24Poznámka*

25Not*

a(z) <A> alapján, a(z) igazo ta a megfelelést, a(z)

<C>tanúsítvány szerint.

zgodnie z dokumentacją <A>, pozytywną

op nią i Świadectwem<C>.

aşa cum este stabilit în <A> şi aprec at 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

enligt <A> och godkänts av enligt

Certifikatet<C>.

som det fremkommer i <A> og gjennom positiv

bedømmelse av følge Sertifikat<C>.

jotka on esitetty asiak rjassa <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

Electromagnetic Compatibility 2014/30/EU *

lmoittaa yksinomaan omalla vastuu laan, että tämän ilmoituksen tarkoittamat laitteet:

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

erklærer under eneansvarl g, at udstyret, som er omfattet af denne erklæring:

deklarerar i egenskap av huvudansvarig, att utrustningen som berörs av denna deklarat on nnebär att:

erklærer et fullstendig ansvar for at det utstyr som berøres av denne deklarasjon innebærer at:

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 vonatkoz k:

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estão em conformidade com a(s) segu nte(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) e ler andet/andre retn ngsgivende dokument(er), forudsat at disse anvendes i henhold til vore nstrukser:

respektive utrustning är utförd i överensstämmelse med och följer följande standard(er) eller andra normgivande dokument, under förutsättn ng 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 n itä käytetään ohjeidemme mukaisesti:

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

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

ob upoštevanju določb:

vastavalt nõuetele:

следвайки клаузите на:

laikantis nuostatų, pateik amų:

ievērojot prasības, kas noteiktas:

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11Information*

12Merk*

održiavajúc ustanovenia:

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>.

06Nota*

07Σημείωση*

prema Certifikatu<C>.

13Huom*

14Poznámka*

15Napomena*

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

Certifikat<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>.

08Nota*

09Примечание*

10Bemærk*

Shigeki Morita

Director

Ostend, 2nd of October 2017

- CONFORMITEITSVERKLARING CE - FÖRSÄKRAN-OM-ÖVERENSTÄMMELSE CE - DECLARAŢIE-DE-CONFORMITATE CE - UYGUNLUK-BEYANI

- DECLARATION-DE-CONFORMITE CE - ΔHΛΩΣΗ ΣΥΜΜΟΡΦΩΣΗΣ CE - OVERENSSTEMMELSESERKLÆRING CE - PROHLÁŠENÍ-O-SHODĚ CE - DEKLARACJA-ZGODNOŚCI CE - ДЕКЛАРАЦИЯ-ЗА-СЪОТВЕТСТВИЕ CE - VYHLÁSENIE-ZHODY

- KONFORMITÄTSERKLÄRUNG CE - DICHIARAZIONE-DI-CONFORMITA CE - ЗАЯВЛЕНИЕ-О-СООТВЕТСТВИИ CE - ILMOITUS-YHDENMUKAISUUDESTA CE - MEGFELELŐSÉGI-NYILATKOZAT CE - VASTAVUSDEKLARATSIOON CE - ATBILSTĪBAS-DEKLARĀCIJA

- 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

under iagttagelse af bestemmelserne i:

enligt villkoren i:

g tt i henhold til bestemmelsene i:

noudattaen määräyksiä:

za dodržení ustanovení předpisu:

prema odredbama:

101112131415161718

declares under its sole responsibility that the equ pment 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 exclus eve verantwoordelijkheid dat de apparatuur waarop deze verklaring betrekking heeft:

declara bajo su única responsabil dad que el equipo al que hace referencia la declaración:

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

δηλώνει με αποκλειστ κή 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:

HVZ04S18DA6V*, EHVZ08S18DA6V*, EHVZ08S23DA6V*, EHVZ08S18DA9W*, EHVZ08S23DA9W*,

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

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

unseren Anweisungen e ngesetzt 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 b ndende documenten z jn, op voorwaarde dat ze worden gebruikt overeenkomstig onze

instructies:

están en conform dad con la(s) siguiente(s) norma(s) u otro(s) documento(s) normativo(s), s empre 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 χρησ μοποιούνται

σύμφωνα με τις οδηγίες μας:

following the provisions of:

N60335-2-40,

követi a(z):

gemäß den Vorschriften der:

conformément aux stipulations des:

overeenkomstig de bepalingen van:

s guiendo las disposiciones de:

secondo le prescrizioni per:

με τήρηση των δ ατάξεων των:

zgodn e z postanowieniami Dyrektyw:

în urma prevederilor:

como se establece en <A> y es valorado

tel que défini dans <A> et évalué positivement par

conformément au Certificat<C>.

positivamente por de acuerdo con el

zoals vermeld in <A> en positief beoordeeld door

overeenkomstig Certificaat<C>.

wie in <A> aufgeführt und von positiv

beurteilt gemäß Zertifikat<C>.

as set out in <A> and judged positively by

according to the Certificate<C>.

de acordo com o previsto em:

в соответствии с положениями:

Certificado<C>.

Table of Contents

1 About the documentation 3

1.1 About his document.................................................................. 3

2 About the box 4

2.1 Indoor unit ................................................................................. 4

2.1.1 To remove he accessories from the indoor unit......... 4

2.1.2 To handle the indoor unit ............................................ 4

3 Preparation 4

3.1 Preparing the installation site .................................................... 4

3.1.1 Installation site requirements of the indoor unit .......... 4

3.2 Preparing water piping .............................................................. 7

3.2.1 To check the water volume and flow rate ................... 7

3.3 Preparing electrical wiring ......................................................... 7

3.3.1 Overview of electrical connections for external and

internal actuators ........................................................ 7

4 Installation 7

4.1 Opening the units ...................................................................... 7

4.1.1 To open the indoor unit ............................................... 7

4.1.2 To open the switch box cover of the indoor unit ......... 8

4.1.3 To lower the switch box on the indoor unit.................. 8

4.2 Mounting the indoor unit ............................................................ 9

4.2.1 To install the indoor unit.............................................. 9

4.3 Connecting the refrigerant piping .............................................. 9

4.3.1 To connect the refrigerant piping to the indoor unit .... 9

4.4 Connecting the water piping ...................................................... 9

4.4.1 To connect the water piping........................................ 9

4.4.2 To connect the recircula ion piping ............................. 10

4.4.3 To connect the drain hose to he drain ....................... 10

4.4.4 To fill the water circuit ................................................. 11

4.4.5 To fill the domes ic hot water tank .............................. 11

4.4.6 To insulate the water piping ........................................ 11

4.5 Connecting the electrical wiring................................................. 11

4.5.1 About electrical compliance ........................................ 11

4.5.2 To connect the electrical wiring on the indoor unit...... 11

4.5.3 To connect the main power supply ............................. 12

4.5.4 To connect the backup heater power supply .............. 12

4.5.5 To connect the shut-off valve...................................... 13

4.5.6 To connect the electrical meters ................................. 14

4.5.7 To connect the domestic hot water pump ................... 14

4.5.8 To connect the alarm output ....................................... 14

4.5.9 To connect the space heating ON/OFF output ........... 14

4.5.10 To connect the changeover to external heat source ... 14

4.5.11 To connect the power consumption digital inputs ....... 14

4.5.12 To connect the safety thermostat (normal closed

contact) ....................................................................... 15

4.6 Finishing the indoor unit installation .......................................... 15

4.6.1 To close the indoor unit............................................... 15

5 Configuration 15

5.1 Overview: Configuration ............................................................ 15

5.1.1 To access the most used commands ......................... 16

5.2 Configuration wizard.................................................................. 16

5.2.1 Configuration wizard: Language ................................. 16

5.2.2 Configuration wizard: Time and date .......................... 16

5.2.3 Configuration wizard: System ..................................... 17

5.2.4 Configuration wizard: Backup heater .......................... 18

5.2.5 Configuration wizard: Main zone................................. 18

5.2.6 Configuration wizard: Additional zone......................... 19

5.2.7 Detailed screen with weather-dependent curve.......... 19

5.2.8 Configuration wizard: Tank ......................................... 19

5.3 Settings menu ........................................................................... 20

5.3.1 Main zone ................................................................... 20

5.3.2 Additional zone ........................................................... 20

5.3.3 Informa ion .................................................................. 20

5.4 Menu structure: Overview installer set ings................................ 22

6 Commissioning 23

6.1 Checklist before commissioning ................................................. 23

6.2 Checklist during commissioning ................................................. 23

6.2.1 To check he minimum flow rate .................................. 23

6.2 2 To perform an air purge ............................................... 24

6.2 3 To perform an operation test run ................................. 24

6.2.4 To perform an actuator test run ................................... 24

6.2 5 To perform an underfloor heating screed dryout.......... 24

7 Hand-over to the user 25 8 Technical data 26

8.1 Piping diagram: Indoor unit ........................................................ 26

8.2 Wiring diagram: Indoor unit ........................................................ 27

8.3 Table 1 – Maximum refrigerant charge allowed in a room:

indoor unit................................................................................... 30

8.4 Table 2 – Minimum floor area: indoor unit .................................. 30

8.5 Table 3 – Minimum venting opening area for natural

ventilation: indoor unit ................................................................ 30

1 About the documentation

1.1 About this document

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 indoor unit)

▪ Indoor unit installation manual:

▪ Installation instructions

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

▪ Outdoor unit installation manual:

▪ Installation instructions

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

▪ 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 indoor unit) + Digital files on

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

Latest revisions of the supplied documentation may be available on the regional Da kin 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 Da kin

extranet (authentication required).

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

2 About the box

4×

6×

1×

4× 1×

1× 1× 1× 1×

a b

g h ic d e f

a a

≥300

≥

500

(mm)

≥600

2 About the box

2.1 Indoor unit

2.1.1 To remove the accessories from the indoor unit

a Shut-off valves for space heating water circuit

b Overpressure bypass valve

c General safety precautions

d Addendum book for optional equipment

e Indoor unit installation manual

f Operation manual

g Sealing rings for shut-off valves (space heating water

circuit)

h Sealing rings for field-supplied shut-off valves (domestic

hot water circuit)

i Sealing tape for low voltage wiring intake

2.1.2 To handle the indoor unit

Use the handles at the back and at the bottom to carry the unit.

WARNING

DO NOT reuse refrigerant piping that has been used with any other refrigerant. Replace the refrigerant pipes or clean thoroughly.

3.1.1 Installation site requirements of the indoor unit

▪ The indoor unit is designed for indoor installation only and for the

following ambient temperatures:

▪ Space heating operation: 5~30°C

▪ Domestic hot water production: 5~35°C

▪ Mind the following spacing installation guidelines:

INFORMATION

If you have limited installation space, do the following before installing the unit in its final position: "4.4.3 To

connect the drain hose to the drain" on page 10. It

requires to remove one or both side panels.

a Handles at the back of the unit

b Handles at the bottom of the unit. Carefully tilt the unit to

he back so that the handles become visible.

3 Preparation

3.1 Preparing the installation site

NOTICE

This unit is designed for operation on 2 temperature zones:

▪ underfloor heating in the main zone, this is the zone

with the lowest water temperature,

▪ radiators in the additional zone, this is the zone with

the highest water temperature.

WARNING

The appliance shall be stored in a room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater).

Installation manual

NOTICE

When the temperature in multiple rooms is controlled by 1 thermostat, do NOT place a thermostatic valve on the emitter in the room where the thermostat is installed.

Special requirements for R32

WARNING

▪ Do NOT pierce or burn.

▪ Do NOT use means to accelerate the defrosting

process or to clean the equipment, other than those recommended by the manufacturer.

▪ Be aware that R32 refrigerant does NOT contain an

odour.

WARNING

The appliance shall be stored so as to prevent mechanical damage and in a well-ventilated room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater) and have a room size as specified below.

NOTICE

▪ Do NOT re-use joints which have been used already.

▪ Joints made in installation between parts of refrigerant

system shall be accessible for maintenance purposes.

WARNING

Make sure installation, servicing, maintenance and repair comply with instructions from Da kin and with applicable legislation (for example national gas regulation) and are executed only by authorised persons.

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

NOTICE

▪ Pipework shall be protected from physical damage.

▪ Installation of pipework shall be kept to a minimum.

3 Preparation

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

3 Preparation

Input from installer:

▪ Total refrigerant charge (m

) (kg)

▪ Area of room A (A

room A

) (m2)

Start

Use table 1 in chapter "Technical data" to calculate the maximum refrigerant charge (m

max

) (kg) allowed for room A.

Contact your dealer.

Use table 3 in chapter "Technical data" and dm to calculate the minimum opening area for natural ventilation between room A and

room B (VA

min

) (cm2).

Unit can be installed at room A if: ▪ 2 ventila ion openings (permanently open) are provided between room A and B, 1 at he top and 1 at the bottom. ▪ Bottom opening: The bottom opening must meet the minimum area requirements (VA

min

). It must be as close as possible to the floor. If the ventilation opening starts from the floor, the height must be ≥20 mm. The bottom of the opening must be situated ≤100 mm from the floor. At least 50% of the required opening area must be situated <200 mm from he floor. The entire area of the opening must be situated <300 mm from the floor.

▪ Top opening: The area of the top opening must be larger han or equal to the bottom opening. The bottom of the top opening must be situated at least 1.5 m

above the top of the bottom opening.

▪ Ventilation openings to the outside are NOT considered suitable ventila ion openings (the user can block them when it is cold).

The unit can be installed in room A, and wi hout further room size or ventilation requirements.

Determine the refrigerant amount that exceeds

max

(dm) (kg). (dm=mc–m

max

)

max≥mc

Yes

Use table 2 in chapter "Technical data" to calculate the total minimum floor area (A

min total

) (m2) required for the total refrigerant

charge (m

min total≤Aroom A+Aroom B

Yes

Input from installer:

▪ Area of adjacent room B (A

room B

) (m2)

a Indoor unit A Room where he indoor unit is installed. B Room adjacent to room A.

≥1.5 m

If the total refrigerant charge in the system is <1.84kg (i.e. if the piping length is <27m), there are no additional minimum floor area requirements.

If the total refrigerant charge in the system is ≥1.84 kg (i.e. if the piping length is ≥27 m), you need to comply with additional minimum floor area requirements as descr bed in the following flow chart. The flow chart uses the following tables: "8.3Table 1 – Maximum refrigerant

charge allowed in a room: indoor unit"on page30, "8.4Table 2 – Minimum floor area: indoor unit"on page 30 and "8.5 Table 3 – Minimum venting opening area for natural ventilation: indoor unit"on page30.

INFORMATION Multiple indoor units. If two or more indoor units are

installed in a room, you must consider the maximum refrigerant charge that can be released in the room when a SINGLE leak occurs. Example: If two indoor units are installed in the room, each with its own outdoor unit, then you have to consider the refrigerant charge of the largest indoor-outdoor combination.

Installation manual

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

4 Installation

Mind the spacing guidelines. See the "Technical data" chapter.

CAUTION

Appliance not accessible to the general public, install it in a secured area, protected from easy access.

This unit, both indoor and outdoor, is suitable for installation in a commercial and light industrial environment.

3.2 Preparing water piping

NOTICE

In case of plastic pipes, make sure they are fully oxygen diffusion tight according to DIN 4726. The diffusion of oxygen into the piping can lead to excessive corrosion.

▪ Valve towards expansion vessel. The valve towards the

expansion vessel (if equipped) MUST be open.

3.2.1 To check the water volume and flow rate

Minimum water volume

There are no requirements for the minimum water volume.

Minimum flow rate

Check that the minimum flow rate in the installation is guaranteed in all conditions on each zone separately. This minimum flow rate is required during defrost/backup heater operation. For this purpose, use the overpressure bypass valve delivered with the unit.

NOTICE

When circulation in each or certain space heating loops is controlled by remotely controlled valves, it is important that the minimum flow rate is guaranteed, even if all valves are closed. In case the minimum flow rate cannot be reached, a flow error 7H will be generated (no heating or operation).

See the installer reference guide for more information.

Minimum required flow rate during defrost/backup heater operation

12l/min

See the recommended procedure as described in "6.2 Checklist

during commissioning"on page23.

3.3 Preparing electrical wiring

Item Description Wires Maximum

running

current

6 User interface used as

(e)

room thermostat 7 Room thermostat 3 or 4 100mA 8 Outdoor ambient

(b)

temperature sensor 9 Indoor ambient

(b)

temperature sensor 10 Heat pump convector 2 100mA

Field supplied components

11 Shut-off valve 2 100mA 12 Electricity meter 2 (per meter) 13 Domestic hot water

(b)

pump 14 Alarm output 2 15 Changeover to external

(b)

heat source control 16 Space heating

(b)

operation control 17 Power consumption

digital inputs 18 Safety thermostat for

2 (per input signal)

(b)

the main zone 19 Safety thermostat for

(d)

the additional zone

(a) Refer to name plate on outdoor unit. (b) Minimum cable section 0.75mm². (c) Cable sec ion 2.5mm². (d) Cable sec ion 0.75mm² till 1.25mm²; maximum length:

50m. Voltage-free contact shall ensure the minimum applicable load of 15VDC, 10mA.

(e) Cable sec ion 0.75mm² till 1.25mm²; maximum length:

500m.

(f) Cable sec ion 1.5mm².

NOTICE

More technical specifications of the different connections are indicated on the inside of the indoor unit.

NOTICE

A safety thermostat (normal closed contact) MUST be installed for the main zone. See "4.5.12To connect the

safety thermostat (normal closed contact)"on page15.

(b)

3.3.1 Overview of electrical connections for external and internal actuators

Item Description Wires Maximum

Outdoor unit and indoor unit power supply

1 Power supply for

2+GND

outdoor unit

2 Power supply and

3 interconnection cable to indoor unit

3 Power supply for

See table below. — backup heater

4 Preferential kWh rate

2 power supply (voltage free contact)

5 Normal kWh rate power

2 6.3A supply

Optional equipment

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

running

current

(a)

(f)

(d)

Backup heater

Power supply Required number of

type

*6V 1N~ 230V 2+GND

3~ 230V 3+GND

*9W 3N~ 400V 4+GND

4 Installation

4.1 Opening the units

4.1.1 To open the indoor unit

1 Remove the top panel.

conductors

Installation manual

4 Installation

7×

T25

2×

T25

4×

T25

4×

T25

2 Remove the user interface panel. Open the hinges at the top

and slide the top panel upwards.

NOTICE

If you remove the user interface panel, also disconnect the cables from the back of the panel to prevent damage.

4.1.2 To open the switch box cover of the indoor unit

3 If necessary, remove the front plate. This is, for example,

necessary in the following cases:

▪ "4.1.3 To lower the switch box on the indoor unit" on

page8

▪ "4.4.3To connect the drain hose to the drain"on page10 ▪ When you need access to the high voltage switch box

Installation manual

4.1.3 To lower the switch box on the indoor unit

During the installation, you will need access to the inside of the indoor unit. To have easier front access, put the switch box lower on the unit as follows:

Prerequisite: The user interface panel and front panel have been removed.

1 Remove the top panel that keeps the switch box into place at

the top of the unit.

2 Tilt the switch box to the front and lift it out of its hinges.

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

2×

T25

3 Place the switch box lower on the unit. Use the 2 hinges located

≤1°

0°

1° 1°

lower on the unit.

4 Installation

NOTICE

Do NOT tilt the unit forwards:

4.3 Connecting the refrigerant piping

See the outdoor unit installation manual for all guidelines, specifications and installation instructions.

4.3.1 To connect the refrigerant piping to the indoor unit

1 Connect the liquid stop valve from the outdoor unit to the

refrigerant liquid connection of the indoor unit.

4.2 Mounting the indoor unit

4.2.1 To install the indoor unit

1 Lift the indoor unit from the pallet and place it on the floor. Also

see "2.1.2To handle the indoor unit"on page4.

2 Connect the drain hose to the drain. See "4.4.3To connect the

drain hose to the drain"on page10.

3 Slide the indoor unit into position. 4 Adjust the height of the leveling feet to compensate for floor

irregularities. The maximum allowed deviation is 1°.

2 Connect the gas stop valve from the outdoor unit to the

a Refrigerant liquid connection b Refrigerant gas connection

refrigerant gas connection of the indoor unit.

INFORMATION

When the indoor unit is installed in a place with limited space, an optional pipe bend (EKHVTC) kit can be installed to facilitate the connection to the refrigerant gas and liquid connections of the indoor unit. For installation instructions, see the instruction sheet of the pipe bend kit.

4.4 Connecting the water piping

4.4.1 To connect the water piping

NOTICE

Do NOT use excessive force when connecting the piping. Deformation of the piping can cause malfunctioning of the unit.

To facilitate service and maintenance, 4 shut-off valves and 1 overpressure bypass valve are provided. Mount the shut-off valves on the space heating water inlets and space heating water outlets. To ensure the minimum flow rate (and prevent overpressure), install the overpressure bypass valve on the space heating water outlet for the additional zone.

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

4 Installation

c d a b

3×

T25

NOTICE

This unit is designed for operation on 2 temperature zones:

▪ underfloor heating in the main zone, this is the zone

with the lowest water temperature,

▪ radiators in the additional zone, this is the zone with

the highest water temperature.

1 Install the shut-off valves on the space heating water pipes. 2 Screw the indoor unit nuts on the shut-off valve. 3 Connect the domestic hot water in and out pipes to the indoor

unit.

a Space heating additional zone water out

b Space heating additional zone water in

c Domestic hot water out

d Domestic cold water in (cold water supply)

e Space heating main zone water out

f Space heating main zone water in

NOTICE

It is recommended to install shut-off valves to domestic cold water in and domestic hot water out connections. These shut-off valves are field supplied.

NOTICE

Overpressure bypass valve (delivered as accessory). We

recommend to install the overpressure bypass valve in the space heating water circuit.

Mind the minimum flow rate when adjusting the overpressure bypass valve setting. See "3.2.1 To check

the water volume and flow rate"on page7 and "6.2.1 To check the minimum flow rate"on page23.

NOTICE

A pressure relief valve (field supply) with an opening pressure of maximum 10 bar must be installed on the domestic cold water inlet connection in accordance with the applicable legislation.

4.4.2 To connect the recirculation piping

Prerequisite: Only required if you need recirculation in your system.

1 Remove the top panel from the unit, see "4.1.1To open the

indoor unit"on page7.

2 Cut out the rubber grommet on top of the unit, and remove the

stop. The recirculation connector is placed below the hole.

3 Route the recirculation piping through the grommet and connect

it to the recirculation connector.

4 Reattach the top panel.

4.4.3 To connect the drain hose to the drain

Water coming from the pressure relief valve is collected in the drain pan. The drain pan is connected to a drain hose inside the unit. You must connect the drain hose to an appropriate drain according to the applicable legislation. You can route the drain hose through the left or right side panel.

Prerequisite: The user interface panel and front panel have been removed.

1 Remove one of the side panels. 2 Cut out the rubber grommet. 3 Pull the drain hose through the hole. 4 Reattach the side panel. Ensure the water can flow through the

drain tube.

It is recommended to use a tundish to collect the water.

Option 1: Through the left side panel

Installation manual

NOTICE

If you install EHVZ models as a single-zone application, then:

Setup. Install a bypass between the space heating water inlet and outlet of the additional zone (=direct zone). Do NOT interrupt the water flow by closing the shut-off valves.

a Bypass Configuration. Set field setting [7-02]=0 (Number of zones

= Single zone).

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

4 Installation

3×

T25

b+c ad

4×

b+c

Option 2: Through the right side panel

4.4.4 To fill the water circuit

To fill the water circuit, use a field supply filling kit. Make sure you comply with the applicable legislation.

INFORMATION

Make sure both air purge valves (one on the magnetic filter and one on the backup heater) are open.

4.5.2 To connect the electrical wiring on the indoor unit

1 To open the indoor unit, see "4.1.1To open the indoor unit"on

page7 and "4.1.2To open the switch box cover of the indoor unit"on page8.

2 The wiring enters the unit from the top:

a, b, c Field wiring (see table below)

d Factory-mounted cable for power supply of backup heater

3 Routing of the wiring inside the unit should be as follows. Fix

the cable to the cable rail using cable ties:

4.4.5 To fill the domestic hot water tank

1 Open every hot water tap in turn to purge air from the system

pipe work.

2 Open the cold water supply valve. 3 Close all water taps after all air is purged. 4 Check for water leaks. 5 Manually operate the field-installed pressure relief valve to

ensure a free water flow through the discharge pipe.

4.4.6 To insulate the water piping

The piping in the complete water circuit MUST be insulated to prevent condensation during defrost operation and reduction of the heating capacity.

If the temperature is higher than 30°C and the humidity is higher than RH 80%, the thickness of the insulation materials should be at least 20 mm to prevent condensation on the surface of the insulation.

4.5 Connecting the electrical wiring

DANGER: RISK OF ELECTROCUTION

WARNING

ALWAYS use multicore cable for power supply cables.

4.5.1 About electrical compliance

Only for the backup heater of the indoor unit

See "4.5.4 To connect the backup heater power supply" on

page12.

WARNING

Make sure that the electrical wiring does NOT touch the refrigerant gas pipe, which can be very hot.

a Refrigerant gas pipe

Routing Possible cables (depending on unit type

Low voltage

and installed options)

▪ Preferential power supply contact

▪ User interface used as room thermostat

(option)

▪ Power consumption digital inputs (field

supply)

▪ Outdoor ambient temperature sensor

(option)

▪ Indoor ambient temperature sensor

(option)

▪ Electrical meters (field supply)

▪ Safety thermostat (field supply)

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

4 Installation

X1M

X2M

X5M

A5P

X11YB

X1A

1 2 3

X11Y

X11YA

1 2 3

X1M

X2M

X5M

A5P

X11Y

X11YB

X1A

1 2 3

1 N L

N L

2 3

S1S

a b c

X11YA

51 2 3 6

910

Routing Possible cables (depending on unit type

and installed options)

High voltage power supply

High voltage control signal

▪ Interconnection cable

▪ Normal kWh rate power supply

▪ Preferential kWh rate power supply ▪ Heat pump convector (option)

▪ Room thermostat (option)

▪ Shut-off valve (field supply)

▪ Domestic hot water pump (field supply)

▪ Alarm output

▪ Changeover to external heat source

control

▪ Space heating operation control

▪ Power supply for backup heater

High voltage power supply (factorymounted cable)

CAUTION

Do NOT push or place redundant cable length in the unit.

4 Seal the low voltage wiring intake using the sealing tape

(delivered as accessory).

Without low voltage cables With low voltage cables

a Interconnection cable (=main power supply) b Normal kWh rate power supply c Preferen ial power supply contact

2 Fix the cables with cable ties to the cable tie mountings.

INFORMATION

In case of preferential kWh rate power supply, connect X11Y to X11YB. The necessity of separate normal kWh rate power supply to indoor unit (b) X2M/5+6 depends on the type of preferential kWh rate power supply.

Separate connection to the indoor unit is required:

▪ if preferential kWh rate power supply is interrupted

when active, OR

▪ if no power consumption of the indoor unit is allowed at

the preferential kWh rate power supply when active.

4.5.3 To connect the main power supply

1 Connect the main power supply.

In case of normal kWh rate power supply

Legend: see illustration below.

In case of preferential kWh rate power supply

Connect X11Y to X11YB.

INFORMATION

The preferential kWh rate power supply contact is connected to the same terminals (X5M/9+10) as the safety thermostat for the additional zone. It is only poss ble for the system to have EITHER preferential kWh rate power supply OR a safety thermostat for the additional zone.

4.5.4 To connect the backup heater power supply

WARNING

The backup heater MUST have a dedicated power supply and MUST be protected by the safety devices required by the applicable legislation.

CAUTION

To guarantee the unit is completely earthed, always connect the backup heater power supply and the earth cable.

The backup heater capacity can vary, depending on the indoor unit model. Make sure that the power supply is in accordance with the backup heater capacity, as listed in the table below.

Installation manual

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

4 Installation

X6M

F1B

Q1DI

1N~, 50 Hz 230 V AC

SWB

436

2 1

K5M

14 13

Q1DI

1234567

F1B

II I I

X6M

SWB

3~, 50 Hz 230 V AC

436

2 1

K5M

14 13

1234567

F1B

II I I

Q1DI

L1 L2 L3

X6M

3N~, 50 Hz 400 V AC

SWB

Q1DI

L1 L2 L3 N

1234567

F1B

II I I

X6M

2 1

K5M

436514

X1M

X2M

X1M

X2M

M2S

2128

21 29

Backup

heater type

Backup

heater

capacity

Power

supply

Maximum

running

current

*6V 2kW 1N~230V 9A —

4kW 1N~230V 17A 6kW 1N~230V 26A

(a)(b)

0.22Ω

0.22Ω 2kW 3~230V 5A — 4kW 3~230V 10A — 6kW 3~230V 15A —

*9W 3kW 3N~400V 4A —

6kW 3N~400V 9A — 9kW 3N~400V 13A —

(a) Equipment complying wi h EN/IEC61000-3-12 (European/

International Technical Standard setting he limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16A and ≤75A per phase.).

(b) This equipment complies with EN/IEC61000‑3‑11

(European/International Technical Standard set ing the limits for voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with rated current ≤75A) provided that the system impedance Z less than or equal to Z user's supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected only to a supply with a system impedance Z Z

max

at the interface point between the

max

less than or equal to

sys

Connect the backup heater power supply as follows:

max

Model (power

supply)

Connections to backup heater power

supply

*6V (3~230V)

sys

*9W (3N~400V)

a Factory-mounted cable connected to the backup heater

contactor inside he switch box (K5M for *6V and *9W models)

b Field wiring (see table below)

Model (power

supply)

*6V (1N~230V)

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Connections to backup heater power

supply

F1B Overcurrent fuse (field supply). Recommended fuse for *6V

and *9W models: 4‑pole; 20A; curve 400V; tripping class

C. K1M Contactor (in the lower switch box) K5M Safety contactor (in the lower switch box)

Q1DI Ear h leakage circuit breaker (field supply) SWB Switch box

X6M Terminal (field supply)

4.5.5 To connect the shut-off valve

1 Connect the valve control cable to the appropriate terminals as

shown in the illustration below.

NOTICE

Wiring is different for a NC (normal closed) valve and a NO (normal open) valve.

2 Fix the cable with cable ties to the cable tie mountings.

Installation manual

4 Installation

X1M

X2M

X5M

S3S S2S

3456

X1M

X2M

X5M

M2P

1 2

X2M

X5M

X1M

A5P

A4P

YC Y1 Y2 Y3 Y4

X1M

7 9

X2M

X5M

X1M

A5P

A4P

YC Y1 Y2 Y3 Y4

X2 X1

X2M

X1M

X4 X3

7 9

X1M

X2M

X5M

A5P

A4P

X1M

YC Y1 Y2 Y3 Y4

X2 X1

X2M

X4 X3

N L

4.5.6 To connect the electrical meters

INFORMATION

In case of an electrical meter with transistor output, check the polarity. The positive polarity MUST be connected to X5M/6 and X5M/4; the negative polarity to X5M/5 and X5M/3.

1 Connect the electrical meters cable to the appropriate terminals

as shown in the illustration below.

2 Fix the cable with cable ties to the cable tie mountings.

4.5.7 To connect the domestic hot water pump

1 Connect the domestic hot water pump cable to the appropriate

terminals as shown in the illustration below.

4.5.9 To connect the space heating ON/OFF output

1 Connect the space heating ON/OFF output cable to the

appropriate terminals as shown in the illustration below.

a Installation of EKRP1HB is required. b Prewiring between X2M/7+9 and Q1L (=thermal protector

backup heater). Do NOT change.

2 Fix the cable with cable ties to the cable tie mountings.

4.5.10 To connect the changeover to external heat source

1 Connect the changeover to external heat source cable to the

appropriate terminals as shown in the illustration below.

2 Fix the cable with cable ties to the cable tie mountings.

4.5.8 To connect the alarm output

1 Connect the alarm output cable to the appropriate terminals as

shown in the illustration below.

a Installation of EKRP1HB is required.

2 Fix the cable with cable ties to the cable tie mountings.

4.5.11 To connect the power consumption digital inputs

1 Connect the power consumption digital inputs cable to the

appropriate terminals as shown in the illustration below.

2 Fix the cable with cable ties to the cable tie mountings.

a Installation of EKRP1HB is required.

b Prewiring between X2M/7+9 and Q1L (=thermal protector

backup heater). Do NOT change.

Installation manual

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

X1M

X2M

X5M

A8P

A5P

12345

X801M

S6S

S7S

S8S

S9S

a Installation of EKRP1AHTA is required.

X1M

X2M

X5M

X1M

X2M

X5M

910

2 Fix the cable with cable ties to the cable tie mountings.

4.5.12 To connect the safety thermostat (normal closed contact)

Main zone

1 Connect the safety thermostat (normal closed) cable to the

appropriate terminals as shown in the illustration below.

5 Configuration

NOTICE

Make sure to select and install the safety thermostat for the additional zone according to the applicable legislation.

In any case, to prevent unnecessary tripping of the safety thermostat, it is recommended that …

▪ … 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 3‑way valve.

INFORMATION

After it is installed, do NOT forget to configure the safety thermostat for the additional zone. Without configuration, the indoor unit will ignore the safety thermostat contact.

INFORMATION

4.6 Finishing the indoor unit installation

4.6.1 To close the indoor unit

1 Close the cover of the switch box. 2 Put the switch box back into place. 3 Reinstall the top panel. 4 Reinstall the side panels. 5 Reinstall the front panel. 6 Reconnect the cables to the user interface panel.

2 Fix the cable with cable ties to the cable tie mountings.

INFORMATION

Installation of a safety thermostat (field supply) is required for the main zone, otherwise the unit will NOT operate.

NOTICE

A safety thermostat MUST be installed on the main zone to avoid too high water temperatures in this zone. The safety thermostat is typically a thermostatically controlled valve with a normal closed contact. When the water temperature in the main zone is too high, the contact will open and the user interface will show a 8H‑02 error. ONLY the main pump will stop.

Additional zone

3 Connect the safety thermostat (normal closed) cable to the

appropriate terminals as shown in the illustration below.

4 Fix the cable with cable ties to the cable tie mountings.

7 Reinstall the user interface panel.

NOTICE

When closing the indoor unit cover, make sure that the tightening torque does NOT exceed 4.1N•m.

5 Configuration

5.1 Overview: Configuration

This chapter describes what you have to do and know to configure the system after it is installed.

NOTICE

The explanation about the configuration in this chapter gives you ONLY basic explanations. For more detailed explanation and background information, see the installer reference guide.

Why

If you do NOT configure the system correctly, it might NOT work as expected. The configuration influences the following:

▪ The calculations of the software

▪ What you can see on and do with the user interface

How

You can configure the system via the user interface.

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

5 Configuration

5678

Installer

00 01 02 03 04

05 06 07 08 09

0A 0B 0C 0D 0E

2 3

00 01 15 02 03 04

05 06 07 08 09

0A 0B 0C 0D 0E

00 01 20 02 03 04

05 06 07 08 09

0A 0B 0C 0D 0E

▪ First time – Configuration wizard. When you turn ON the user

interface for the first time (via the indoor unit), the configuration wizard starts to help you configure the system.

▪ Restart the configuration wizard. If the system is already

configured, you can restart the configuration wizard. To restart the configuration wizard, go to Installer settings > Configuration wizard. To access Installer settings, see "5.1.1 To access the

most used commands"on page16.

▪ Afterwards. If necessary, you can make changes to the

configuration in the menu structure or the overview settings.

INFORMATION

When the configuration wizard is finished, the user interface will show an overview screen and request to confirm. When confirmed, the system will restart and the home screen will be displayed.

Accessing settings – Legend for tables

You can access the installer settings using two different methods. However, NOT all settings are access ble via both methods. If so, the corresponding table columns in this chapter are set to N/A (not applicable).

Method Column in tables

Accessing settings via the breadcrumb in the

menu structure. To enable breadcrumbs,

press the Accessing settings via the code in the

button in the home screen.

Code

overview field settings.

See also:

▪ "To access the installer settings"on page16

▪ "5.4Menu structure: Overview installer settings"on page22

To modify an overview setting Example: Modify [1‑01] from 15 to 20.

All settings can be done using the menu structure. If for any reason it is required to change a setting using the overview settings, then the overview settings can be accessed as follows:

1 Set the user permission level to Installer. See "To

—

change the user permission level"on page16.

2 Go to [9.I]: Installer settings > Overview field

settings.

3 Turn the left dial to select the first part of the setting

and confirm by pressing the dial.

4 Turn the left dial to select the second part of the

setting

5 Turn the right dial to modify the value from 15 to 20.

5.1.1 To access the most used commands

To change the user permission level

You can change the user permission level as follows:

1 Go to [B]: User profile. 2 Enter the applicable code for the user permission. —

▪ Move the cursor from left to right. ▪ Browse through the list of digits and change the

▪ Confirm the pincode and proceed.

Installer pin code

The Installer pin code is 5678. Additional menu items and installer settings are now available.

Advanced user pin code

The Advanced user pin code is 1234. Additional menu items for the user are now vis ble.

User pin code

The User pin code is 0000.

To access the installer settings

1 Set the user permission level to Installer. 2 Go to [9]: Installer settings.

Installation manual

selected digit.

6 Press the left dial to confirm the new setting. 7 Press the center button to go back to the home

screen.

INFORMATION

When you change the overview settings and you go back to the home screen, the user interface will show a popup screen and request to restart the system.

When confirmed, the system will restart and recent changes will be applied.

5.2 Configuration wizard

After first power ON of the system, the user interface will guide you using the configuration wizard. This way you can set the most important initial settings. This way the unit will be able to run properly. Afterwards, more detailed settings can be done via the menu structure if required.

5.2.1 Configuration wizard: Language

# Code Description

[7.1] N/A Language

5.2.2 Configuration wizard: Time and date

# Code Description

[7.2] N/A Set the local time and date

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

5 Configuration

INFORMATION

By default, daylight savings time is enabled and clock format is set to 24 hours. If you want to change these settings, you can do this in the menu structure (User settings > Time/date) once the unit is initialised.

5.2.3 Configuration wizard: System

Indoor unit type

The indoor unit type is displayed, but cannot be adjusted.

Backup heater type

The backup heater is adapted to be connected to most common European electricity grids. The type of backup heater must be set on the user interface. For units with a built-in backup heater, the type of heater can be viewed but not changed.

# Code Description

[9.3.1] [E‑03] ▪ 3: 6V

▪ 4: 9W

Domestic hot water

The following setting determines if the system can prepare domestic hot water or not, and which tank is used. This setting is read only.

# Code Description

[9.2.1] [E‑05]

[E-05] Can the system prepare domestic hot water? [E-06] Is a domestic hot water tank installed in the system? [E-07] What kind of domestic hot water tank is installed?

When the heat pump fails to operate, the backup heater can serve as an emergency heater and either automatically or nonautomatically take over the heat load.

▪ When auto emergency is set to Automatic and a heat pump failure

occurs, the backup heater will automatically take over the heat load and the domestic hot water production.

▪ When auto emergency is set to Manual and a heat pump failure

occurs, the domestic hot water and space heating operation will stop and need to be recovered manually via the user interface. To recover operation manually, go to the Malfunctioning main menu screen, where the user interface will then ask you to confirm whether the backup heater can take over the heat load or not.

Emergency

We recommend to set Emergency to Automatic if the house is unattended for longer periods.

# Code Description

[9.5] N/A ▪ 0: Manual

INFORMATION

The auto emergency setting can be set in the menu structure of the user interface only.

INFORMATION

If a heat pump failure occurs and Emergency is set to Manual, the room frost protection function, the underfloor heating screed dryout function, and the water pipe antifreeze function will remain active even if the user does NOT confirm emergency operation.

(*)

▪ Integrated

(*)

[E‑06]

(*)

[E‑07]

(*) Menu structure setting [9.2.1] replaces the following 3

overview settings:

The backup heater will also be used for domestic hot water heating.

▪ 1: Automatic

Number of zones

The system can supply leaving water to up to 2 water temperature zones. During configuration, the number of water zones must be set.

# Code Description

[4.4] [7‑02] ▪ 0: Single zone

Only one leaving water temperature zone:

▪ a: Main LWT zone

[4.4] [7‑02] ▪ 1: Dual zone

Two leaving water temperature zones. The main leaving water temperature zone consists of the higher load heat emitters and a mixing station to achieve the desired leaving water temperature. In heating:

▪ a: Additional LWT zone: Highest

temperature

▪ b: Main LWT zone: Lowest

temperature

CAUTION

If there are 2 zones, it is important that the zone with the lowest water temperature is configured as the main zone, and the zone with the highest water temperature is configured as the additional zone. Not configuring the system in this way could cause damage to the heat emitters.

CAUTION

If there are 2 zones and the emitter types are wrongly configured, water of high temperature can be sent towards a low temperature emitter (underfloor heating). To avoid this:

▪ Install an aquastat/thermostatic valve to avoid too high

temperatures towards a low temperature emitter.

▪ Make sure you set the emitter types for the main zone

[2.7] and for the additional zone [3.7] correctly in accordance with the connected emitter.

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

5 Configuration

5.2.4 Configuration wizard: Backup heater

The backup heater is adapted to be connected to most common European electricity grids. If the backup heater is available, the voltage, configuration and capacity must be set on the user interface.

The capacities for the different steps of the backup heater must be set for the energy metering and/or power consumption control feature to work properly. When measuring the resistance value of each heater, you can set the exact heater capacity and this will lead to more accurate energy data.

Voltage

▪ For a 3V model, this is fixed to 230V, 1ph.

▪ For a 6V model, this can be set to:

▪ 230V, 1ph

▪ 230V, 3ph

▪ For a 9W model, this is fixed to 400V, 3ph.

# Code Description

[9.3.2] [5‑0D] ▪ 0: 230V, 1ph

▪ 1: 230V, 3ph

▪ 2: 400V, 3ph

Configuration

The backup heater can be configured in different ways. It can be chosen to have a 1-step only backup heater or a backup heater with 2 steps. If 2 steps, the capacity of the second step depends on this setting. It can also be chosen to have a higher capacity of the second step in emergency.

# Code Description

[9.3.3] [4‑0A] ▪ 0: Relay 1

▪ 1: Relay 1 / Relay 1+2

▪ 2: Relay 1 / Relay 2

▪ 3: Relay 1 / Relay 2 Emergency Relay

(a)

1+2

(a) Not available for 3V models.

INFORMATION

Settings [9.3.3] and [9.3.5] are linked. Changing one setting influences the other. If you change one, check if the other is still as expected.

INFORMATION

During normal operation, the capacity of the second step of the backup heater at nominal voltage is equal to [6‑03]+[6‑04].

INFORMATION

If [4‑0A]=3 and emergency mode is active, the power usage of the backup heater is maximal and equal to 2×[6‑03]+[6‑04].

INFORMATION

Only for systems with integrated domestic hot water tank: If the storage temperature set point is higher than 50°C, Da kin recommends NOT to disable the backup heater second step because it will have a big impact on the required time for the unit to heat up the domestic hot water tank.

Capacity step 1

# Code Description

[9.3.4] [6‑03] ▪ The capacity of the first step of the

backup heater at nominal voltage.

(a)

Additional capacity step 2

# Code Description

[9.3.5] [6‑04] ▪ The capacity difference between the

second and first step of the backup heater at nominal voltage. Nominal value depends on backup heater configuration.

5.2.5 Configuration wizard: Main zone

The most important settings for the main leaving water zone can be set here.

Emitter type

Depending on the system water volume and the heater emitter type of the main zone, the heat up of the main zone can take longer. This setting can compensate for a slow or a quick heating system during the heat up cycle. The target delta T for the main zone will depend on this setting. Target delta T control is only possible in case only 1 zone is active. Pump control will be different when both zones are active.

In room thermostat control, this setting will influence the maximum modulation of the desired leaving water temperature.

Therefore it is important to set this correctly and in accordance with your system layout.

# Code Description

[2.7] [2‑0C] ▪ 0: Underfloor heating

▪ 1: Fancoil unit

▪ 2: Radiator

The setting of the emitter type has an influence on the space heating setpoint range and the target delta T in heating as follows:

Description Space heating

setpoint range

0: Underfloor heating Maximum 55°C Variable 1: Fancoil unit Maximum 55°C Variable 2: Radiator Maximum 65°C Fixed 10°C

NOTICE

For radiators, the average emitter temperature will be lower compared to underfloor heating, due to the fixed delta T of 10°C. To compensate, you can:

▪ Increase the weather dependent curve desired

temperatures [2.5].

▪ Enable leaving water temperature modulation and

increase the maximum modulation [2.C].

Control

For the control of the unit there are 3 possibilities:

Control In this control...

Leaving water Unit operation is decided based on the leaving

water temperature regardless the actual room temperature and/or heating demand of the room.

External room thermostat

Unit operation is decided by the external thermostat or equivalent (e.g. heat pump convector).

Room thermostat Unit operation is decided based on the ambient

temperature of the user interface used as a room thermostat.

Target delta T in

heating

Installation manual

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

5 Configuration

# Code Description

[2.9] [C‑07] ▪ 0: Leaving water

▪ 1: External room thermostat

▪ 2: Room thermostat

Setpoint mode

In Fixed mode, the desired leaving water temperature does NOT depend on the outdoor ambient temperature.

In Weather dependent mode, the desired leaving water temperature depends on the outdoor ambient temperature.

# Code Description

[2.4] N/A Setpoint mode

▪ 0: Fixed

▪ 2: Weather dependent

When weather dependent operation is active, low outdoor temperatures will result in warmer water and vice versa. During weather dependent operation, the user has the possibility to shift the water temperature up or down by a maximum of 10°C.

Schedule

Indicates if the desired leaving water temperature is according to a schedule. Influence of the LWT setpoint mode [2.4] is as follows:

▪ In Fixed LWT setpoint mode, the scheduled actions consist of

desired leaving water temperatures, either preset or custom.

▪ In Weather dependent LWT setpoint mode, the scheduled actions

consist of desired shift actions, either preset or custom.

# Code Description

[2.1] N/A ▪ 0: No

▪ 1: Yes

# Code Description

[3.4] N/A ▪ 0: Fixed

▪ 2: Weather dependent

If you choose Weather dependent, the next screen will be the detailed screen with weather-dependent curves. Also see

"5.2.7Detailed screen with weather-dependent curve"on page19.

Schedule

Indicates if the desired leaving water temperature is according to a schedule. Also see "5.2.5 Configuration wizard: Main zone" on

page18.

# Code Description

[3.1] N/A ▪ 0: No

▪ 1: Yes

5.2.7 Detailed screen with weather-dependent curve

When weather dependent operation is active the desired tank temperature is determined automatically depending on the averaged outdoor temperature. When the outdoor temperature is lower the tank temperature will need to be higher as the water pipes will be colder and vice versa.

The weather-dependent curves are defined by two setpoints:

▪ Setpoint (X1, Y2)

▪ Setpoint (X2, Y1)

Weather-dependent curve:

5.2.6 Configuration wizard: Additional zone

The most important settings for the additional leaving water zone can be set here.

Emitter type

For more info about this functionality, see "5.2.5 Configuration

wizard: Main zone"on page18.

# Code Description

[3.7] [2‑0D] ▪ 0: Underfloor heating

▪ 1: Fancoil unit

▪ 2: Radiator

Control

The control type is displayed here, but cannot be adjusted. It is determined by the control type of the main zone. For more info about the functionality, see "5.2.5 Configuration wizard: Main zone" on

page18.

# Code Description

[3.9] N/A ▪ 0: Leaving water if the control type of

Setpoint mode

For more info about this functionality, see "5.2.5 Configuration

wizard: Main zone"on page18.

the main zone is Leaving water.

▪ 1: External room thermostat if the

control type of the main zone is External room thermostat or Room thermostat.

Item Description

a Poss ble weather dependent zones:

X, X1, X2 Outdoor ambient temperature Y, Y1, Y2 Desired tank temperature or leaving water temperature.

5.2.8 Configuration wizard: Tank

Heat up mode

The domestic hot water can be prepared in 3 different ways. They differ from each other by the way the desired tank temperature is set and how the unit acts upon it.

Possible actions on this screen

Go through the temperatures. Change the temperature. Go to the next temperature. Confirm changes and proceed.

: Main zone or additional zone heating

▪

: Domestic hot water

▪

The symbol shown here corresponds to the heat emitter for that zone:

: Underfloor heating

▪

: Fan coil unit

▪

: Radiator

: Domestic hot water tank

▪

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

5 Configuration

# Code Description

[5.6] [6-0D] Heat up mode

▪ 0: Reheat only: Only reheat operation

is allowed.

▪ 1: Schedule + reheat: The domestic

hot water tank is heated according to a schedule and between the scheduled heat up cycles, reheat operation is allowed.

▪ 2: Schedule only: The domestic hot

water tank can ONLY be heated according to a schedule.

See the operation manual for more details.

Comfort setpoint

Only applicable when domestic hot water preparation is Schedule only or Schedule + reheat. When programming the schedule, you can make use of the comfort setpoint as a preset value. When you later want to change the storage setpoint, you only have to do it in one place.

The tank will heat up until the storage comfort temperature has been reached. It is the higher desired temperature when a storage comfort action is scheduled.

Additionally, a storage stop can be programmed. This feature puts a stop to tank heating even if the setpoint has NOT been reached. Only program a storage stop when tank heating is absolutely undesirable.

# Code Description

[5.2] [6-0A] Comfort setpoint

▪ 30°C~[6‑0E]°C

Eco setpoint

The storage economic temperature denotes the lower desired tank temperature. It is the desired temperature when a storage economic action is scheduled (preferably during day).

# Code Description

[5.3] [6-0B] Eco setpoint

▪ 30°C~min(50,[6‑0E])°C

Reheat setpoint Desired reheat tank temperature, used:

▪ in Schedule + reheat mode, during reheat mode: the guaranteed

minimum tank temperature is set by the Reheat setpoint minus the reheat hysteresis. If the tank temperature drops below this value, the tank is heated up.

▪ during storage comfort, to prioritize the domestic hot water

preparation. When the tank temperature rises above this value, domestic hot water preparation and space heating/cooling are executed sequentially.

# Code Description

[5.4] [6-0C] Reheat setpoint

▪ 30°C~min(50,[6‑0E]°C

5.3 Settings menu

You can set additional settings using the main menu screen and its submenus. The most important settings are presented here.

Following combinations are possible to control the unit (not applicable when [C‑07]=0):

When [C‑07]=2 (RT control)

User interface at

indoor unit

When [C‑07]=1 (Ext RT control)

User interface at

indoor unit

NOTICE

If an external room thermostat is used, the external room thermostat will control the room frost protection. However, the room frost protection is only possible if the leaving water temperature control on the unit's user interface is turned ON.

# Code Description

[2.A] [C–05] External room thermostat type for the

User interface used

as room thermostat at

main zone

External room

thermostat at main

zone

main zone:

▪ 1: 1 contact: The used external room

thermostat can only send a thermo ON/OFF condition. There is no separation between heating or cooling demand.

▪ 2: 2 contacts: The used external room

thermostat can send a separate heating/cooling thermo ON/OFF condition.

External room

thermostat at

additional zone

External room

thermostat at

additional zone

5.3.2 Additional zone

Thermostat type

Only applicable in external room thermostat control. For more info about the functionality, see "5.3.1Main zone"on page20.

# Code Description

[3.A] [C–06] External room thermostat type for the

additional zone:

▪ 1: 1 contact

▪ 2: 2 contacts

5.3.1 Main zone

Thermostat type

Only applicable in external room thermostat control.

Installation manual

5.3.3 Information

Dealer information

The installer can fill in his contact number here.

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

# Code Description

[8.3] N/A Number that users can call in case of

problems.

5 Configuration

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

5 Configuration

[9.C]

Bivalent

Bivalent Boiler efficiency Temperature Hysteresis

[9.B]

Sensors

External sensor Ext. amb. sensor offset Averaging time

[9.6]

Balancing

Space heating priority Priority temperature Offset BSH setpoint

Minimum running timer

Anti-recycle timer

Maximum running timer Additional timer

[9.3]

Backup heater

Backup heater type Voltage Configuration

Additional capacity step 2

Capacity step 1

Equilibrium Equilibrium temperature Operation

[9.8]

Benefit kWh power supply

Benefit kWh power supply Allow heater Allow pump

[9.2]

Domestic hot water

Domestic hot water DHW pump DHW pump schedule Solar

[9.9]

Power consumption control

Power consumption control Type Limit Limit 1 Limit 2 Limit 3 Limit 4 Priority heater

Electricity meter 2

Electricity meter 1

[9.A]

Energy metering

[9]

Installer settings

Configuration wizard Domestic hot water Backup heater Emergency Balancing Water pipe freeze prevention Benefit kWh power supply Power consumption control Energy metering Sensors Bivalent Alarm output

Auto restart Power saving function Disable protections

Overview field settings

Forced defrost

5.4 Menu structure: Overview installer settings

Installation manual

INFORMATION

Solar kit settings are shown but are NOT applicable for this unit. Settings shall NOT be used or changed.

INFORMATION

Depending on the selected installer settings and unit type, settings will be visible/invisible.

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

6 Commissioning

NOTICE

NEVER operate the unit without thermistors and/or pressure sensors/switches. Burning of the compressor might result.

6.1 Checklist before commissioning

Do NOT operate the system before the following checks are OK:

You read the complete installation instructions, as descr bed in the installer reference guide.

The indoor unit is properly mounted.

The outdoor unit is properly mounted.

The following field wiring has been carried out according to this document and the applicable legislation:

▪ Between the local supply panel and the outdoor unit

▪ Between indoor unit and outdoor unit

▪ Between the local supply panel and the indoor unit

▪ Between the indoor unit and the valves (if applicable)

▪ Between the indoor unit and the room thermostat (if

applicable)

The system is properly earthed and the earth terminals are tightened.

The fuses or locally installed protection devices are installed according to this document, and have NOT been bypassed.

The power supply voltage matches the voltage on the identification label of the unit.

There are NO loose connections or damaged electrical components in the switchbox.

There are NO damaged components or squeezed

pipes on the inside of the indoor and outdoor units. Backup heater circuit breaker F1B (field supply) is

turned ON. There are NO refrigerant leaks.

The refrigerant pipes (gas and liquid) are thermally insulated.

The correct pipe size is installed and the pipes are properly insulated.

There is NO water leak inside the indoor unit.

The shut-off valves are properly installed and fully open.

The stop valves (gas and liquid) on the outdoor unit are fully open.

The air purge valve is open (at least 2 turns).

The pressure relief valve purges water when opened.

The domestic hot water tank is filled completely.

INFORMATION

The software is equipped with an "installer-on-site" mode ([9.G]: Disable protections), that disables automatic operation by the unit. At first installation, setting Disable protections is by default set to Yes, meaning automatic operation is disabled. All protective functions are then disabled. If the user interface home pages are off, the unit will NOT operate automatically. To enable automatic operation and the protective functions, set Disable protections to No.

36 hours after the first power-on, the unit will automatically set Disable protections to No, ending "installer-on-site" mode and enabling the protective functions. If – after first installation – the installer returns to the site, the installer has to set Disable protections to Yes manually.

6.2 Checklist during commissioning

The minimum flow rate during backup heater/defrost operation is guaranteed in all conditions. See "To check the water volume and flow rate" in "3.2Preparing water

piping"on page7.

To perform an air purge.

To perform a test run.

To perform an actuator test run.

Underfloor screed dryout function

The underfloor screed dryout function is started (if necessary).

6.2.1 To check the minimum flow rate

Mandatory procedure for the additional zone

1 Confirm according to the hydraulic configuration

which space heating loops can be closed due to mechanical, electronic, or other valves.

2 Close all space heating loops that can be closed

(see previous step).

3 Start the pump test run operation (see "6.2.4To

perform an actuator test run"on page24).

4 During pump test run operation, go to Sensors. 5 Select the flow rate information. During test run

operation, the unit can operate below the minimum required flow rate.

6 Modify the bypass valve setting to reach the

minimum required flow rate + 2l/min.

Recommended procedure for the main zone

INFORMATION

The pump of the additional zone ensures that the minimum flow rate for correct operation of the unit is guaranteed.

1 Confirm according to the hydraulic configuration

which space heating loops can be closed due to mechanical, electronic, or other valves.

2 Close all space heating loops that can be closed

(see previous step).

3 Create a thermo request on the main zone only. — 4 Wait 1 minute until the unit is stabilized. — 5 If the additional pump is still assisting (the green

LED on the right hand sided pump is ON) increase the flow until the additional pump is not assisting anymore (LED is OFF).

—

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

6 Commissioning

6 Go to [8.4.A]: Information > Sensors > Flow rate. 7 Modify the bypass valve setting to reach the

minimum required flow rate + 2l/min.

Minimum required flow rate during defrost/backup heater operation

12l/min

—

6.2.2 To perform an air purge

Conditions: Make sure all operation is disabled. Go to the

Operation menu and turn off Room, Space heating/cooling and Tank operation.

1 Set the user permission level to Installer. See "To

change the user permission level"on page16.

2 Go to [A.3]: Commissioning > Air purge. 3 Select OK to confirm.

Result: The air purge starts. It stops automatically

when air purge cycle is finished. To stop the air purge manually: —

1 Go to Stop air purge. 2 Select OK to confirm.

INFORMATION

For both manual and automatic air purge, 1 temperature zone is purged with each air purge start. To purge the other temperature zone, you have to restart the air purge function. When performing an air purge for the first time, the main temperature zone will be purged.

—

6.2.3 To perform an operation test run

Conditions: Make sure all operation is disabled. Go to the

Operation menu and turn off Room, Space heating/cooling and Tank operation.

INFORMATION

The test run only applies to the additional temperature zone.

1 Set the user permission level to Installer. See "To

change the user permission level"on page16.

2 Go to [A.1]: Commissioning > Operation test run. 3 Select a test from the list. Example: Heating. 4 Select OK to confirm.

Result: The test run starts. It stops automatically

when done (±30min). To stop the test run manually: —

1 Go to Stop test run. 2 Select OK to confirm.

If the installation of the unit has been done correctly, the unit will start up during test operation in the selected operation mode. During test mode, the correct operation of the unit can be checked by monitoring its leaving water temperature (heating/cooling mode) and tank temperature (domestic hot water mode).

To monitor the temperature:

1 Go to Sensors. 2 Select the temperature information.

—

6.2.4 To perform an actuator test run

Conditions: Make sure all operation is disabled. Go to the

Operation menu and turn off Room, Space heating/cooling and Tank operation.

Purpose of the actuator test run is to confirm the operation of the different actuators (e.g., when you select Pump, a test run of the pump will start).

1 Set the user permission level to Installer. See "To

change the user permission level"on page16.

2 Go to [A.2]: Commissioning > Actuator test run. 3 Select a test from the list. Example: Pump. 4 Select OK to confirm.

Result: The actuator test run starts. It stops

automatically when done (±30min). To stop the test run manually: —

1 Go to Stop test run. 2 Select OK to confirm.

—

Possible actuator test runs

▪ Backup heater 1 test

▪ Backup heater 2 test

▪ Pump test

INFORMATION

Make sure that all air is purged before executing the test run. Also avoid disturbances in the water circuit during the test run.

▪ Shut off valve test

▪ Diverter valve test

▪ Bivalent signal test

▪ Alarm output test

▪ C/H signal test

▪ DHW pump test

6.2.5 To perform an underfloor heating screed dryout

Conditions: Make sure all operation is disabled. Go to the

Operation menu and turn off Room, Space heating/cooling and Tank operation.

1 Set the user permission level to Installer. See "To

change the user permission level"on page16.

2 Go to [A.4]: Commissioning > UFH screed dryout. 3 Set a dryout program: go to Program and use the

UFH screed dryout programming screen.

4 Select OK to confirm.

Result: The underfloor heating screed dryout starts.

It stops automatically when done. To stop the test run manually: —

1 Go to Stop UFH screed dryout. 2 Select OK to confirm.

NOTICE

To perform an underfloor heating screed dryout, room frost protection needs to be disabled ([2‑06]=0). By default, it is enabled ([2‑06]=1). However, due to the "installer-on-site" mode (see "Checklist before commissioning"), room frost protection will be automatically disabled for 36 hours after the first power-on.

If the screed dryout still needs to be performed after the first 36 hours of power-on, manually disable room frost protection by setting [2‑06] to "0", and KEEP it disabled until the screed dryout has finished. Ignoring this notice will result in cracking of the screed.

—

Installation manual

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

NOTICE

For the underfloor heating screed dryout to be able to start, make sure the following settings are met:

▪ [4‑00]=1

▪ [C‑02]=0

▪ [D‑01]=0

▪ [4‑08]=0

▪ [4‑01]≠1

7 Hand-over to the user

Once the test run is finished and the unit operates properly, please make sure the following is clear for the user:

▪ Fill in the installer setting table (in the operation manual) with the

actual settings.

▪ Make sure that the user has the printed documentation and ask

him/her to keep it for future reference. Inform the user that he can find the complete documentation on the url as earlier descr bed in this manual.

▪ Explain the user how to properly operate the system and what to

do in case of problems.

▪ Show the user what to do in relation to maintaining the unit.

▪ Explain the user about energy saving tips as described in the

operation manual.

7 Hand-over to the user

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

8 Technical data

3D112187A

B1PW

M3S

M1S

B2PR

R3T

R8T

R2T

R1T

R5T

R4T

R7T

l m

8 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 Da kin extranet (authentication required).

8.1 Piping diagram: Indoor unit

A Water side B Refrigerant side

C Field installed a1 Space heating water IN (addi ional/direct zone) a2 Space heating water OUT (additional/direct zone)

b1 Space heating water IN (main/mixed zone) b2 Space heating water OUT (main/mixed zone)

c1 Domestic hot water: cold water IN c2 Domestic hot water: hot water OUT

d1 Gas refrigerant IN (heating mode; condenser) d2 Liquid refrigerant OUT (heating mode; condenser)

g Expansion vessel h Magnetic filter/dirt separator

m Check valve

n Flow sensor o Backup heater p Water filter (main/mixed zone) q Capillary tube

B1PW Space heating water pressure sensor

B2PR Refrigerant pressure sensor

Installation manual

e Plate heat exchanger

f Shut-off valve for service (if equipped)

i Safety valve j Air purge

k Drain valve

l Pump (additional/direct zone)

r Pump (main/mixed zone)

M1S 3-way valve (mixing valve for the main/mixed zone) M3S 3-way valve (space hea ing/domestic hot water)

R1T Thermistor (heat exchanger – water OUT) R2T Thermistor (backup heater – water OUT) R3T Thermistor (liquid refrigerant) R4T Thermistor (heat exchanger – water IN)

R5T, R8T Thermistor (tank)

R7T Thermistor (main/mixed zone– water OUT)

Screw connection Flare connection

Quick coupling Brazed connection

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

8 Technical data

8.2 Wiring diagram: Indoor unit

See the internal wiring diagram supplied with the unit (on the inside of the indoor unit switch box cover). The abbreviations used are listed below.

Notes to go through before starting the unit

English Translation

Notes to go through before starting the unit

X1M Main terminal X2M Field wiring terminal for AC X5M Field wiring terminal for DC X6M Backup heater power supply

Note 1: Connection point of the power supply for the BUH should be foreseen outside the unit.

Backup heater power supply Backup heater power supply

1N~, 230 V 1N~, 230V 3~, 230 V 3~, 230V 3N~, 400 V 3N~, 400V

User installed options User installed options

LAN adapter LAN adapter Remote user interface User interface used as room

Ext. indoor thermistor External indoor thermistor Ext outdoor thermistor External outdoor thermistor Digital I/O PCB Digital I/O PCB Demand PCB Demand PCB

Main LWT Main leaving water temperature

On/OFF thermostat (wired) On/OFF thermostat (wired) On/OFF thermostat (wireless) On/OFF thermostat (wireless) Ext. thermistor External thermistor Heat pump convector Heat pump convector Safety thermostat Safety thermostat

Add LWT Additional leaving water

Position in switch box

English Translation

Position in switch box Position in switch box

Legend

A1P Main PCB A2P * On/OFF thermostat (PC=power circuit) A3P * Heat pump convector

Notes to go through before starting the unit

terminal Earth wiring Field supply Several wiring possibilities

Option

Not mounted in switch box

Wiring depending on model

PCB

Note 1: Connection point of the power supply for the backup heater should be foreseen outside the unit.

thermostat

temperature

A4P * Digital I/O PCB A5P Bizone PCB A6P Current loop PCB A8P * Demand PCB A9P Status indicator A10P MMI (=user interface connected to the

indoor unit) – Power supply unit PCB

A11P MMI (=user interface connected to the

indoor unit) – Main PCB A12P MMI display PCB A13P * LAN adapter A14P * User interface used as room thermostat –

PCB A15P * Receiver PCB (wireless On/OFF thermostat) B1L Flow sensor B1PR Refrigerant pressure sensor B1PW Water pressure sensor CN* (A4P) * Connector DS1 (A5P) DIP switch DS1(A8P) * DIP switch E1A Electrical anode E1H Backup heater element (1kW) E2H Backup heater element (2kW) E*P (A9P) Indication LED F1B # Overcurrent fuse backup heater F1T Thermal fuse backup heater F1U, F2U (A4P) * Fuse 5A 250V for digital I/O PCB F1U, F2U (A5P) Fuse T 2A 250V for PCB FU1 (A1P) Fuse T 5A 250V for PCB FU2 (A10P) Fuse T 1.6A 250V for PCB K1M, K2M Contactor backup heater K5M Safety contactor backup heater K6M Relay 3-way valve bypass K7M Relay 3-way valve flow K*R (A4P) Relay on PCB M1P Main supply pump M1S Mixing 3-way valve M2P # Domestic hot water pump M2S # 2-way valve for cooling mode M3P Main zone pump M3S 3-way valve for space heating/domestic hot

water P1M MMI display PC (A15P) * Power circuit PHC1 (A4P) * Optocoupler input circuit Q1L Thermal protector backup heater Q3L, Q4L # Safety thermostat Q*DI # Earth leakage circuit breaker R1H (A2P) * Humidity sensor R1T (A1P ) Outlet water heat exchanger thermistor R1T (A2P) * Ambient sensor On/OFF thermostat R1T (A14P) * Ambient sensor user interface

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

8 Technical data

R2T (A1P) Outlet backup heater thermistor R2T (A2P) * External sensor (floor or ambient) R3T Refrigerant liquid side thermistor R4T Inlet water thermistor R5T, R8T Domestic hot water thermistor R6T * External indoor or outdoor ambient

R7T Mixed leaving water thermistor S1S # Preferential kWh rate power supply contact S2S # Electrical meter pulse input 1 S3S # Electrical meter pulse input 2 S6S~S9S * Digital power limitation inputs SS1 (A4P) * Selector switch SW1~2 (A12P) Turn buttons SW3~5 (A12P) Push buttons TR1 Power supply transformer X6M # Backup heater power supply terminal strip X*, X*A, X*Y, Y* Connector X*M Terminal strip

* Optional

# Field supply

Translation of text on wiring diagram

English Translation

(1) Main power connection (1) Main power connection For preferential kWh rate power

supply Indoor unit supplied from outdoor Indoor unit supplied from outdoor Normal kWh rate power supply Normal kWh rate power supply Only for normal power supply

(standard) Only for preferential kWh rate

power supply (outdoor) Outdoor unit Outdoor unit Preferential kWh rate power

supply contact: 16 V DC detection (voltage supplied by PCB)

SWB Switch box Use normal kWh rate power

supply for indoor unit (2) Backup heater power supply (2) Backup heater power supply Only for *** Only for *** (3) User interface (3) User interface Only for LAN adapter Only for the LAN adapter Only for remote user interface

EKRUDAS (5) Ext. thermistor (5) External thermistor SWB Switch box

thermistor

For preferential kWh rate power supply

Only for normal power supply (standard)

Only for preferential kWh rate power supply (outdoor)

Preferential kWh rate power supply contact: 16VDC detection (voltage supplied by PCB)

Use normal kWh rate power supply for indoor unit

Only for the user interface used as room thermostat (EKRUDAS)

English Translation

(6) Field supplied options (6) Field supplied options 12 V DC pulse detection (voltage

supplied by PCB) 230 V AC supplied by PCB 230VAC supplied by PCB Continuous Continuous current DHW pump output Domestic hot water pump output DHW pump Domestic hot water pump Electrical meters Electrical meters For safety thermostat For safety thermostat Inrush Inrush current Max. load Maximum load Normally closed Normally closed Normally open Normally open Safety thermostat Safety thermostat Safety thermostat contact: 16 V

DC detection (voltage supplied by PCB)

Shut-off valve Shut-off valve SWB Switch box (7) Option PCBs (7) Option PCBs Alarm output Alarm output Changeover to ext. heat source Changeover to external heat

Max. load Maximum load Min. load Minimum load Only for demand PCB option Only for demand PCB option Only for digital I/O PCB option Only for digital I/O PCB option Options: ext. heat source output,

alarm output Options: On/OFF output Options: On/OFF output Power limitation digital inputs: 12

V DC / 12 mA detection (voltage supplied by PCB)

Space C/H On/OFF output Space cooling/heating On/OFF

SWB Switch box (8) External On/OFF thermostats

and heat pump convector Additional LWT zone Additional leaving water

Main LWT zone Main leaving water temperature

Only for external sensor (floor/ ambient)

Only for heat pump convector Only for heat pump convector Only for wired On/OFF

thermostat Only for wireless On/OFF

thermostat

12VDC pulse detection (voltage supplied by PCB)

Safety thermostat contact: 16VDC detection (voltage supplied by PCB)

source

Options: external heat source output, alarm output

Power limitation digital inputs: 12VDC / 12mA detection (voltage supplied by PCB)

output

(8) External On/OFF thermostats and heat pump convector

temperature zone

zone Only for external sensor (floor or

ambient)

Only for wired On/OFF thermostat

Only for wireless On/OFF thermostat

Installation manual

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

Electrical connection diagram

X1M: 1-2-3

X2M: 5-6

X5M: 9-10

X5M: 1-2

A4P: Y1-YC

X2M: 7-9

A4P: X1-X2

X5M 11-12

X2M: 1-2

X5M: 7-8

X5M: 5-6

X5M: 3-4

A4P: Y2-YC

X2M: 7-9

A8P: X801M: 1-5

A8P: X801M: 2-5

A8P: X801M: 3-5

A8P: X801M: 4-5

A2P: X1M: C-com-H

A15P: X1M: H-C-com X2M: L-N

A2P: X1M: 1-3

A3P: X11M: 5-6

2x0.75

230 V

R2T

4D109880A

- In case of signal cable: keep minimum distance to power cables >5 cm

Notes

External sensor (floor or ambient)

3 core

5 or 4 or 3

core

3 core

2x0.75

2 core

2 core signal

signal

2 core

signal

2 core

signal

2 core

signal

2 core

X1M: L-N-earth

Indoor unit

Outdoor unit

Only for *KRP1HB*

2-way valve

Coo ing/heating On/OFF output

Circulation pump for DHW

M2S for cooling mode

Ext. heat source (e.g. boiler)

A arm indicat on

2 core

signal

2 core

signal

2 core

signal

2 core

Electricity meter pulse input 2

Electricity meter pulse input 1

external thermistor (indoor or outdoor)

Only for *KRTETS

2 core

(3m included)

signal

A13P: P1-P2 LAN adapter

A14P: P1-P2 user interface

communication

2 core

communication

2 core

5 core for C/H operation

4 core for H only operation

3 core for C/H operation

2 core for H only operation

Only for (heat pump convector)

Only for EKRUDAS

Only for *KRTR (wireless room thermostat)

Only for *KRTW (wired room thermostat)

Only for KRCS01-1 or EKRSCA1

External room thermostat / Heat pump convector (main and/or additional zone)

main: X2M: 30-35 add: X2M: 30-35a

main: X2M: 30-31-34-35

add: X2M: 30-31-34a-35a

main: X2M: 30-34-35

add: X2M: 30-34a-35a

Cooling/heating

On OFF output

NO valve: X2M: 21-28 NC valve: X2M: 21-29

Changeover to

ext. heat source output

Alarm output

Safety thermostat Q3L

Power imitation demand input 4

Power imitation demand input 3

Power imitation demand input 2

Power imitation demand input 1

Only for *KRP1AHTA

X6M: L1-L2-L3 earth or L-N earth or L1-L2-L3-N earth

Field supply

Optional partField supply

Field supply

(F1B)

Safety thermostat Q4L

unit preferen ial kWh rate power supply: 230 V earth

Only for preferential kWh rate power supply insta lation

unit power supply: 230 V earth

Only for normal power supply installation

backup heater power supply (3/6/9 kW): 400 V or 230 V earth

normal kWh rate power supply for indoor unit: 230 V

Preferen ial kWh rate power supply contact

Standard part

Power supply

signal

For more details, please check the unit wiring.

8 Technical data

EHVZ04+08S18+23DA Daikin Altherma – Low temperature split 4P495245-1B – 2017.12

Installation manual

8 Technical data

8.3 Table 1 – Maximum refrigerant charge allowed in a room: indoor unit

(m2) Maximum refrigerant charge in a room

room

1 0.138 2 0.276 3 0.414 4 0.553 5 0.691 6 0.829 7 0.907 8 0.970

9 1.028 10 1.084 11 1.137 12 1.187 13 1.236 14 1.283 15 1.328 16 1.371 17 1.413 18 1.454 19 1.494 20 1.533 21 1.571 22 1.608 23 1.644 24 1.679 25 1.714 26 1.748 27 1.781 28 1.814 29 1.846 30 1.877 31 1.909

) (kg)

max

H=600mm

INFORMATION

▪ For floorstanding models, the value of "Installation

height (H)" is considered 600 mm to comply to IEC60335-2-40:2013 A1 2016 Clause GG2.

▪ For intermediate mc values (i.e. when mc is between

two values from the table), consider the value that corresponds to the higher mc value from the table. If mc=1.87 kg, consider the value that corresponds to "mc=1.88kg".

▪ Systems with total refrigerant charge lower than

1.84kg are not subjected to any room requirements.

▪ Charges above 1.9kg are not allowed in the unit.

8.5 Table 3 – Minimum venting opening area for natural ventilation: indoor unit

mcm

1.9 0.1 1.80 729

1.9 0.3 1.60 648

1.9 0.5 1.40 567

1.9 0.7 1.20 486

1.9 0.9 1.00 418

1.9 1.1 0.80 370

1.9 1.3 0.60 301

1.9 1.5 0.40 216

1.9 1.7 0.20 115

dm=mc–m

max

INFORMATION

▪ For floorstanding models, the value of "Installation

height (H)" is considered 600 mm to comply to IEC60335-2-40:2013 A1 2016 Clause GG2.

▪ For intermediate dm values (i.e. when dm is between

two dm values from the table), consider the value that corresponds to the higher dm value from the table. If dm=1.55 kg, consider the value that corresponds to "dm=1.6kg".

(kg) Minimum venting opening area

max

(cm2)

H=600mm

INFORMATION

▪ For floorstanding models, the value of "Installation

height (H)" is considered 600 mm to comply to IEC60335-2-40:2013 A1 2016 Clause GG2.

▪ For intermediate A

between two values from the table), consider the value that corresponds to the lower A If A

=12.5m2, consider the value that corresponds to

room

=12m2".

room

values (i.e. when A

room

value from the table.

room

8.4 Table 2 – Minimum floor area: indoor unit

mc (kg) Minimum floor area (m²)

H=600mm

1.84 28.81

1.86 29.44

1.88 30.08

1.90 30.72

Installation manual

room

Daikin Altherma – Low temperature split

EHVZ04+08S18+23DA

4P495245-1B – 2017.12

4P495245-1 B 00000000

4P495245-1B 2017.12

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