Hitachi YUTAKI S COMBI Series User manual

YUTAKI S COMBI SERIES
RWD-(2.0-6.0)NW(S)E-(200/260)S(-K)
Indoor unit
INSTRUCTION MANUAL
MANUAL DE INSTRUCCIONES
BEDIENUNGSANLEITUNG
MANUEL D’UTILISATION
MANUALE DI ISTRUZIONI
MANUAL DE INSTRUÇÕES
BRUGSANVISNING
INSTALLATIEHANDLEIDING
INSTALLATIONSHANDBOK
ΕΓΧΕΙΡΊΔΙΟ ΟΔΗΓΙΏΝ

English
Specications in this manual are subject to change without notice in order that HITACHI may bring the latest innovations
to their customers.
Whilst every effort is made to ensure that all specications are correct, printing errors are beyond Hitachi’s control;
HITACHI cannot be held responsible for these errors.
Español
Las especicaciones de este manual están sujetas a cambios sin previo aviso a n de que HITACHI pueda ofrecer las
últimas innovaciones a sus clientes.
A pesar de que se hacen todos los esfuerzos posibles para asegurarse de que las especicaciones sean correctas, los
errores de impresión están fuera del control de HITACHI, a quien no se hará responsable de ellos.
Deutsch
Bei den technischen Angaben in diesem Handbuch sind Änderungen vorbehalten, damit HITACHI seinen Kunden die
jeweils neuesten Innovationen präsentieren kann.
Sämtliche Anstrengungen wurden unternommen, um sicherzustellen, dass alle technischen Informationen ohne Fehler
veröffentlicht worden sind. Für Druckfehler kann HITACHI jedoch keine Verantwortung übernehmen, da sie außerhalb
ihrer Kontrolle liegen.
Français
Les caractéristiques publiées dans ce manuel peuvent être modiées sans préavis, HITACHI souhaitant pouvoir toujours
offrir à ses clients les dernières innovations.
Bien que tous les efforts sont faits pour assurer l’exactitude des caractéristiques, les erreurs d’impression sont hors du
contrôle de HITACHI qui ne pourrait en être tenu responsable.
Italiano
Le speciche di questo manuale sono soggette a modica senza preavviso afnché HITACHI possa offrire ai propri
clienti le ultime novità.
Sebbene sia stata posta la massima cura nel garantire la correttezza dei dati, HITACHI non è responsabile per eventuali
errori di stampa che esulano dal proprio controllo.
Português
As especicações apresentadas neste manual estão sujeitas a alterações sem aviso prévio, de modo a que a HITACHI
possa oferecer aos seus clientes, da forma mais expedita possível, as inovações mais recentes.
Apesar de serem feitos todos os esforços para assegurar que todas as especicações apresentadas são correctas,
quaisquer erros de impressão estão fora do controlo da HITACHI, que não pode ser responsabilizada por estes erros
eventuais.
Dansk
Specikationerne i denne vejledning kan ændres uden varsel, for at HITACHI kan bringe de nyeste innovationer ud til
kunderne.
På trods af alle anstrengelser for at sikre at alle specikationerne er korrekte, har Hitachi ikke kontrol over trykfejl, og
Hitachi kan ikke holdes ansvarlig herfor.
Nederlands
De specicaties in deze handleiding kunnen worden gewijzigd zonder verdere kennisgeving zodat HITACHI zijn klanten
kan voorzien van de nieuwste innovaties.
Iedere poging wordt ondernomen om te zorgen dat alle specicaties juist zijn. Voorkomende drukfouten kunnen echter
niet door Hitachi worden gecontroleerd, waardoor Hitachi niet aansprakelijk kan worden gesteld voor deze fouten.
Svenska
Specikationerna i den här handboken kan ändras utan föregående meddelande för att HITACHI ska kunna leverera de
senaste innovationerna till kunderna.
Vi på Hitachi gör allt vi kan för att se till att alla specikationer stämmer, men vi har ingen kontroll över tryckfel och kan
därför inte hållas ansvariga för den typen av fel.
Eλλhnika
Οι προδιαγραφές του εγχειριδίου μπορούν να αλλάξουν χωρίς προειδοποίηση, προκειμένου η HITACHI να παρέχει τις
τελευταίες καινοτομίες στους πελάτες της.
Αν και έχει γίνει κάθε προσπάθεια προκειμένου να εξασφαλιστεί ότι οι προδιαγραφές είναι σωστές, η Hitachi δεν μπορεί
να ελέγξει τα τυπογραφικά λάθη και, ως εκ τούτου, δεν φέρει καμία ευθύνη για αυτά τα λάθη.

!CAUTION
This product shall not be mixed with general house waste at the end of its life and it shall be retired according to the
appropriated local or national regulations in a environmentally correct way.
Due to the refrigerant, oil and other components contained in heat pump, its dismantling must be done by a
professional installer according to the applicable regulations. Contact to the corresponding authorities for more
information.
!PRECAUCIÓN
Este producto no se debe eliminar con la basura doméstica al nal de su vida útil y se debe desechar de manera respetuosa con el
medio ambiente de acuerdo con los reglamentos locales o nacionales aplicables.
Debido al refrigerante, el aceite y otros componentes contenidos en la bomba de calor, su desmontaje debe realizarlo un instalador
profesional de acuerdo con la normativa aplicable. Para obtener más información, póngase en contacto con las autoridades competentes.
!VORSICHT
Dass Ihr Produkt am Ende seiner Betriebsdauer nicht in den allgemeinen Hausmüll geworfen werden darf, sondern entsprechend den
geltenden örtlichen und nationalen Bestimmungen auf umweltfreundliche Weise entsorgt werden muss.
Aufgrund des Kältemittels, Öls und anderer Komponenten in der Wärmepumpe muss ihr Ausbau von einem professionellen
Installateur entsprechend der anwendbaren Vorschriften durchgeführt werden. Für weitere Informationen setzen Sie sich bitte mit den
entsprechenden Behörden in Verbindung.
!ADVERTISSEMENT
Ne doit pas être mélangé aux ordures ménagères ordinaires à la n de sa vie utile et qu’il doit être éliminé conformément à la
réglementation locale ou nationale, dans le plus strict respect de l’environnement.
En raison du frigorigène, de l’huile et des autres composants que contient la pompe à chaleur, son démontage doit être effectué par un
installateur professionnel conformément aux règlementations en vigueur.
!AVVERTENZE
Indicazioni per il corretto smaltimento del prodotto ai sensi della Direttiva Europea 2002/96/EC e Dlgs 25 luglio 2005 n.151
Il simbolo del cassonetto barrato riportato sull’ apparecchiatura indica che il prodotto alla ne della propria vita utile deve essere raccolto
separatamente dagli altri riuti.
L’utente dovrà, pertanto, conferire l’apparecchiatura giunta a ne vita agli idonei centri di raccolta differenziata dei riuti elettronici ed
elettrotecnici, oppure riconsegnarla al rivenditore al momento dell’ acquisto di una nuova apparecchiatura di tipo equivalente.
L’adeguata raccolta differenziata delle apparecchiature dismesse, per il loro avvio al riciclaggio, al trattamento ed allo smaltimento
ambientalmente compatibile, contribuisce ad evitare possibili effetti negativi sull’ ambiente e sulla salute e favorisce il riciclo dei materiali
di cui è composta l’ apparecchiatura.
Non tentate di smontare il sistema o l’unità da soli poichè ciò potrebbe causare effetti dannosi sulla vostra salute o sull’ ambiente.
Vogliate contattare l’ installatore, il rivenditore, o le autorità locali per ulteriori informazioni.
Lo smaltimento abusivo del prodotto da parte dell’utente può comportare l’applicazione delle sanzioni amministrative di cui all’articolo 50
e seguenti del D.Lgs. n. 22/1997.
!CUIDADO
O seu produto não deve ser misturado com os desperdícios domésticos de carácter geral no nal da sua duração e que deve ser
eliminado de acordo com os regulamentos locais ou nacionais adequados de uma forma correcta para o meio ambiente.
Por causa do refrigerante, do óleo e de outros componentes na bomba de calor, o desmantelamento deve ser realizado por um instalador
prossional em conformidade com os regulamentos aplicáveis. Contacte as autoridades correspondentes para obter mais informações.
!ADVASEL!
At produktet ikke må smides ud sammen med almindeligt husholdningsaffald, men skal bortskaffes i overensstemmelse med de
gældende lokale eller nationale regler på en miljømæssig korrekt måde.
Da varmepumpen indeholder kølemiddel, olie samt andre komponenter, skal afmontering foretages af en fagmand i overensstemmelse
med de gældende bestemmelser. Kontakt de pågældende myndigheder for at få yderligere oplysninger.
!VOORZICHTIG
Dit houdt in dat uw product niet wordt gemengd met gewoon huisvuil wanneer u het weg doet en dat het wordt gescheiden op een
milieuvriendelijke manier volgens de geldige plaatselijke en landelijke reguleringen.
Wegens de aanwezigheid van koelmiddel, olie en andere componenten in de warmtepomp moet het apparaat volgens de toepasselijke
regelgeving door een professionele installateur worden gedemonteerd. Neem contact op met de betreffende overheidsdienst voor meer
informatie.
!FÖRSIKTIGHET
Det innebär att produkten inte ska slängas tillsammans med vanligt hushållsavfall utan kasseras på ett miljövänligt sätt i enlighet med
gällande lokal eller nationell lagstiftning.
Eftersom värmepumpen innehåller kylmedel, oljor och andra komponenter, måste den demonteras av en behörig installatör i enlighet
med gällande föreskrifter. Ta kontakt med ansvarig myndighet om du vill ha mer information.
!ΠΡΟΣΟΧΗ
Σημαίνει ότι το προϊόν δεν θα πρέπει να αναμιχθεί με τα διάφορα οικιακά απορρίμματα στο τέλος του κύκλου ζωής του και θα πρέπει να
αποσυρθεί σύμφωνα με τους κατάλληλους τοπικούς ή εθνικούς κανονισμούς και με τρόπο φιλικό προς το περιβάλλον.
Λόγω του ψυκτικού, του λαδιού και άλλων εξαρτημάτων που περιλαμβάνονται στην αντλία θέρμανσης, η αποσυναρμολόγησή του
πρέπει να γίνει από εξουσιοδοτημένο επαγγελματία τεχνικό, σύμφωνα με τους ισχύοντες κανονισμούς. Για περισσότερες λεπτομέρειες,
επικοινωνήστε με τις αντίστοιχες αρχές.

MODELS CODIFICATION Important note: Please, check, according to the model name, which is your
heat pump type, how it is abbreviated and referred to in this Instruction Manual.
This Instruction Manual is only related to Indoor Units
RWD-NW(S)E-S(-K) combined with Outdoor Units RAS-WH(V)NP(E).
CODIFICACIÓN DE LOS MODELOS Nota importante: compruebe, de acuerdo con el nombre del modelo, el tipo
de bomba de calor, su abreviatura y su referencia en el presente manual
de instrucciones. Este Manual de instalación y funcionamiento sólo está
relacionado con unidades interiores RWD-NW(S)E-S(-K) combinadas con
unidades exteriores RAS-WH(V)NP(E).
MODELLCODES Wichtiger Hinweis: Bitte stellen Sie anhand der Modellbezeichnung den Typ
der Wärmepumpe und das entsprechende, in diesem Technischen Handbuch
verwendete Kürzel fest. Dieses Installations- und Betriebshandbuch bezieht
sich nur auf RWD-NW(S)E-S(-K) Innengeräte in Kombination mit RAS-WH(V)
NP(E)-Außengeräten.
CODIFICATION DES MODÈLES Remarque importante : veuillez déterminer, d’après le nom du modèle, quel est
votre type de pompe à chaleur et quelle est son abréviation et référence dans
ce manuel d’instruction. Ces manuels d’installation et de fonctionnement ne
concernent que les unités intérieures RWD-NW(S)E-S(-K) combinées à des
groupes extérieurs RAS-WH(V)NP(E).
CODICI DEI MODELLI Nota importante: controllare in base al modello il tipo di pompa di calore, la
descrizione e il tipo di abbreviazione utilizzati nel manuale di istruzioni. Questo
manuale di installazione e d’uso fa riferimento alla sola combinazione di unità
interne RWD-NW(S)E-S(-K) e unità esterne RAS-WH(V)NP(E).
CODIFICAÇÃO DE MODELOS Nota importante: de acordo com o nome do modelo, verique o tipo da
sua bomba de calor e a respetiva abreviatura e menção neste manual de
instruções. Este manual de instalação e de funcionamento só está relacionado
com as unidades interiores RWD-NW(S)E-S(-K) combinadas com as unidades
exteriores RAS-WH(V)NP(E).
MODELKODIFICERING Vigtig information: Kontrollér venligst din varmepumpetype i henhold til
modelnavnet, hvordan den forkortes, og hvilken reference den har i denne
vejledning. Denne monteringsog driftsmanual vedrører kun
RWD-NW(S)E-S(-K) indendørsenhederne i forbindelse med RAS-WH(V)NP(E)
udendørsenhederne.
CODERING VAN DE MODELLEN Belangrijke opmerking: Controleer aan de hand van de modelnaam
welk type warmtepomp u heeft, hoe de naam wordt afgekort en hoe
ernaar wordt verwezen in deze instructiehandleiding. Deze Installatie- en
bedieningshandleiding heeft alleen betrekking op binnenunits
RWD-NW(S)E-S(-K) gecombineerd met buitenunits RAS-WH(V)NP(E).
MODELLER Viktigt! Kontrollera med modellnamnet vilken typ av värmepump du har, hur
den förkortas och hur den anges i den här handboken. Denna handbok för
installation och användning gäller endast för inomhusenheterna
RWD-NW(S)E-S(-K) kombinerade med utomhusenheterna RAS-WH(V)NP(E).
ΚΩ∆ΙΚΟΠΟΙΗΣΗ ΜΟΝΤΕΛΩΝ Σηµαντική σηµείωση: Ελέγξτε, σύμφωνα με το όνομα μοντέλου, τον τύπο της
δικής σας αντλίας θέρμανσης και με ποια σύντμηση δηλώνεται και αναφέρεται
σε αυτό το εγχειρίδιο. Αυτό το εγχειρίδιο εγκατάστασης και λειτουργίας αφορά
μόνο τις εσωτερικές μονάδες RWD-NW(S)E-S(-K) με εξωτερικές μονάδες
RAS-WH(V)NP(E).

Standard model
INDOOR UNIT - UNIDAD INTERIOR - INNENGERÄT - UNITÉ INTÉRIEURE - UNITÀ INTERNA -
UNIDADE INTERIOR - INDENDØRSENHED - BINNENUNIT - INOMHUSENHET - ΕΣΩΤΕΡΙΚΗ ΜΟΝΑ∆Α
SPLIT AIR TO WATER HEAT PUMP MODELS
() () ()
1~ 230V 50Hz 3N~ 400V 50Hz
Unit Unit
RWD-2.0NWE-200S -
RWD-2.0NWE-260S -
RWD-2.5NWE-200S -
RWD-2.5NWE-260S -
RWD-3.0NWE-200S -
RWD-3.0NWE-260S -
RWD-4.0NWE-200S RWD-4.0NWE-200S
RWD-4.0NWE-260S RWD-4.0NWE-260S
RWD-5.0NWE-200S RWD-5.0NWE-200S
RWD-5.0NWE-260S RWD-5.0NWE-260S
RWD-6.0NWE-200S RWD-6.0NWE-200S
RWD-6.0NWE-260S RWD-6.0NWE-260S

Model for solar combination
INDOOR UNIT - UNIDAD INTERIOR - INNENGERÄT - UNITÉ INTÉRIEURE - UNITÀ INTERNA -
UNIDADE INTERIOR - INDENDØRSENHED - BINNENUNIT - INOMHUSENHET - ΕΣΩΤΕΡΙΚΗ ΜΟΝΑ∆Α
SPLIT AIR TO WATER HEAT PUMP MODELS
() ()
1~ 230V 50Hz 3N~ 400V 50Hz
Unit Unit
RWD-2.0NWSE-260S -
RWD-2.5NWSE-260S -
RWD-3.0NWSE-260S -
RWD-4.0NWSE-260S RWD-4.0NWSE-260S
RWD-5.0NWSE-260S RWD-5.0NWSE-260S
RWD-6.0NWSE-260S RWD-6.0NWSE-260S

Model for UK market
INDOOR UNIT - UNIDAD INTERIOR - INNENGERÄT - UNITÉ INTÉRIEURE - UNITÀ INTERNA -
UNIDADE INTERIOR - INDENDØRSENHED - BINNENUNIT - INOMHUSENHET - ΕΣΩΤΕΡΙΚΗ ΜΟΝΑ∆Α
SPLIT AIR TO WATER HEAT PUMP MODELS
() () ()
1~ 230V 50Hz 3N~ 400V 50Hz
Unit Unit
RWD-2.0NWE-200S-K -
RWD-2.0NWE-260S-K -
RWD-2.5NWE-200S-K -
RWD-2.5NWE-260S-K -
RWD-3.0NWE-200S-K -
RWD-3.0NWE-260S-K -
RWD-4.0NWE-200S-K RWD-4.0NWE-200S-K
RWD-4.0NWE-260S-K RWD-4.0NWE-260S-K
RWD-5.0NWE-200S-K RWD-5.0NWE-200S-K
RWD-5.0NWE-260S-K RWD-5.0NWE-260S-K
RWD-6.0NWE-200S-K RWD-6.0NWE-200S-K
RWD-6.0NWE-260S-K RWD-6.0NWE-260S-K
?NOTE
Icons between brackets mean possible extra operations to the fac-
tory-supplied operations. For cooling operation, refer to the Cooling
kit accessory for YUTAKI S COMBI units.
?NOTA
Los iconos entre paréntesis representan posibles operaciones adi-
cionales con respecto a las operaciones suministradas de fábrica.
Para el funcionamiento en enfriamiento, consulte el accesorio de
kit de enfriamiento para unidades YUTAKI S COMBI.
?HINWEIS
Die Symbole in Klammern stellen mögliche zusätzliche Betrieben
in Bezug auf die gelieferten Fabrikbetrieb. Für den Kühlbetrieb,
beziehen Sie sich auf das Cooling Kit Zubehör für YUTAKI S COM-
BI-Einheiten.
?REMARQUE
Les icônes entre parenthèses représentent des opérations supplé-
mentaires possibles en ce qui concerne les opérations fourni. Pour
l’opération de refroidissement, reportez-vous à l’accessoire de kit
de refroidissement pour les unités YUTAKI S COMBI.
?NOTA
Icone in parentesi rappresentano possibili operazioni aggiuntive
rispetto alle operazioni in dotazione di fabbrica. Per il funziona-
mento di raffreddamento, fare riferimento al kit di raffreddamento
accessorio per unità YUTAKI S COMBI.
?NOTA
Ícones entre parênteses representam possíveis operações adicio-
nais no que diz respeito às operações fornecidas de fábrica. Para
a operação de arrefecimento, consulte o kit de acessório de arre-
fecimento para unidades YUTAKI S COMBI.
?BEMÆRK
Ikoner i parentes repræsenterer eventuelle yderligere operationer i
forhold til de medfølgende fabrikken operationer. Para a operação
de refrigeração, consulte o resfriamento acessório de kit para uni-
dades YUTAKI S COMBI.
?OPMERKING
Pictogrammen tussen haakjes betekenen mogelijk extra behande-
lingen om de fabriek geleverde operaties. Voor koeling, wordt ver-
wezen naar de accessoire kit voor koeling voor YUTAKI S COMBI
units.
?OBS!
Ikoner inom parentes betyder eventuella extra operationer till fab-
rikslevererad verksamhet. För kyldrift, se Cooling sats tillbehör till
YUTAKI S COMBI-enheter.
?ΣΗΜΕΙΩΣΗ
Εικόνες στις παρενθέσεις αντιπροσωπεύουν πιθανές πρόσθετες
λειτουργίες σε σχέση με τις παρεχόμενες εργασίες του εργοστασίου.
Για τη λειτουργία ψύξης, ανατρέξτε στο Ψύξη εξάρτημα κιτ για τις
μονάδες YUTAKI S COMBI.

EN English Original version
ES Español Versión traducida
DE Deutsch Übersetzte Version
FR Français Version traduite
IT Italiano Versione tradotta
PT Português Versão traduzidal
DA Dansk Oversat version
NL Nederlands Vertaalde versie
SV Svenska Översatt version
EL Ελληνικα Μεταφρασμένη έκδοση
INDEX
1 GENERAL INFORMATION
2 SAFETY
3 GENERAL DIMENSIONS
4 REFRIGERANT AND WATER PIPING
5 ELECTRICAL AND CONTROL SETTINGS
6 UNIT INSTALLATION
7 COMMISSIONING
8 UNIT CONTROLLER
ÍNDICE
1 INFORMACIÓN GENERAL
2 SEGURIDAD
3 DIMENSIONES GENERALES
4 TUBERÍAS DE AGUA Y DE REFRIGERANTE
5 AJUSTES ELÉCTRICOS Y DE CONTROL
6 INSTALACIÓN DE LA UNIDAD
7 PUESTA EN MARCHA
8 CONTROLADOR DE LA UNIDAD
INHALTSVERZEICHNIS
1 ALLGEMEINE INFORMATIONEN
2 SICHERHEIT
3 ALLGEMEINE ABMESSUNGEN
4 KÄLTEMITTEL- UND WASSERLEITUNGEN
5 ELEKTRISCHE UND STEUERUNGS-EINSTELLUNGEN
6 GERÄTEINSTALLATION
7 INBETRIEBNAHME
8 GERÄTESTEUERUNG
INDEX
1 INFORMATIONS GÉNÉRALES
2 SÉCURITÉ
3 DIMENSIONS GÉNÉRALES
4 TUYAUTERIE FRIGORIFIQUE ET D'EAU
5 RÉGLAGES DE COMMANDE ET ÉLECTRIQUES
6 INSTALLATION DES UNITÉS
7 MISE EN SERVICE
8 CONTRÔLEUR D’UNITÉ
INDICE
1 INFORMAZIONI GENERALI
2 SICUREZZA
3 DIMENSIONI GENERALI
4 LINEE DELL'ACQUA E DEL REFRIGERANTE
5 IMPOSTAZIONI ELETTRICHE E DI CONTROLLO
6 INSTALLAZIONE DELL’UNITÀ
7 MESSA IN SERVIZIO
8 DISPOSITIVO DI CONTROLLO DELL'UNITÀ
ÍNDICE
1 INFORMAÇÃO GERAL
2 SEGURANÇA
3 DIMENSÕES GERAIS
4 TUBAGEM DE REFRIGERANTE E DE ÁGUA
5 AJUSTES DE CONTROLO E ELÉTRICOS
6 INSTALAÇÃO DA UNIDADE
7 COLOCAÇÃO EM FUNCIONAMENTO
8 CONTROLADOR DA UNIDADE
INDHOLDSFORTEGNELSE
1 GENEREL INFORMATION
2 SIKKERHED
3 GENERELLE MÅL
4 KØLEMIDDEL- OG VANDRØR
5 ELEKTRISKE OG KONTROLINDSTILLINGER
6 MONTERING AF ENHED
7 IDRIFTSÆTTELSE
8 STYREENHED
INHOUDSOPGAVE
1 ALGEMENE INFORMATIE
2 VEILIGHEID
3 ALGEMENE AFMETINGEN
4 KOUDEMIDDEL- EN WATERLEIDINGEN
5 ELEKTRISCHE EN BESTURINGSINSTELLINGEN
6 INSTALLATIE VAN DE UNIT
7 INBEDRIJFSTELLING
8 BESTURING VAN UNIT
INNEHÅLLSFÖRTECKNING
1 ALLMÄN INFORMATION
2 SÄKERHET
3 ALLMÄNA MÅTT
4 KYL- OCH VATTENRÖR
5 EL- OCH STYRINNSTÄLLNINGAR
6 INSTALLATION AV ENHET
7 DRIFTSÄTTNING
8 ENHETENS STYRMODUL
ΕΥΡΕΤΗΡΙΟ
1 ΓΕΝΙΚΕΣ ΠΛΗΡΟΦΟΡΙΕΣ
2 ΑΣΦΑΛΕΙΑ
3 ΓΕΝΙΚΕΣ ΔΙΑΣΤΑΣΕΙΣ
4 ΨΥΚΤΙΚΟ ΚΑΙ ΣΩΛΗΝΩΣΕΙΣ ΝΕΡΟΥ
5 ΡΥΘΜΙΣΕΙΣ ΗΛΕΚΤΡΙΚΕΣ ΚΑΙ ΕΛΕΓΧΟΥ
6 ΕΓΚΑΤΑΣΤΑΣΗ ΜΟΝΑΔΩΝ
7 ΕΝΑΡΞΗ ΛΕΙΤΟΥΡΓΙΑΣ
8 ΧΕΙΡΙΣΤΗΡΙΟ ΜΟΝΑΔΑΣ

ENGLISH
1 GENERAL INFORMATION
No part of this publication may be reproduced, copied, led
or transmitted in any shape or form without the permission of
HITACHI Air Conditioning Products Europe, S.A.U.
Within the policy of continuous improvement of its products,
HITACHI Air Conditioning Products Europe, S.A.U. reserves
the right to make changes at any time without prior notication
and without being compelled to introducing them into products
subsequently sold. This document may therefore have been
subject to amendments during the life of the product.
HITACHI makes every effort to offer correct, up-to-date
documentation. Despite this, printing errors cannot be controlled
by HITACHI and are not its responsibility.
As a result, some of the images or data used to illustrate this
document may not refer to specic models. No claims will be
accepted based on the data, illustrations and descriptions
included in this manual.
2 SAFETY
2.1 APPLIED SYMBOLS
During normal heat pump system design work or unit
installation, greater attention must be paid in certain situations
requiring particular care in order to avoid injuries and damage to
the unit, the installation or the building or property.
Situations that jeopardise the safety of those in the surrounding
area or that put the unit itself a risk will be clearly indicated in
this manual.
To indicate these situations, a series of special symbols will be
used to clearly identify these situations.
Pay close attention to these symbols and to the messages
following them, as your safety and that of others depends on it.
!DANGER
• The text following this symbol contains information and
instructions relating directly to your safety and physical
wellbeing.
• Not taking these instructions into account could lead to serious,
very serious or even fatal injuries to you and others in the
proximities of the unit.
In the text following the danger symbol you can also nd
information on safe procedures during unit installation.
!CAUTION
• The text following this symbol contains information and instructions
relating directly to your safety and physical wellbeing.
• Not taking these instructions into account could lead to minor injuries
to you and others in the proximities of the unit.
• Not taking these instructions into account could lead to unit damage.
In the text following the caution symbol you can also nd
information on safe procedures during unit installation.
?NOTE
• The text following this symbol contains information or instructions that
may be of use or that require a more thorough explanation.
• Instructions regarding inspections to be made on unit parts or systems
may also be included.
2.2 ADDITIONAL INFORMATION ABOUT SAFETY
!DANGER
• DO NOT CONNECT THE POWER SUPPLY TO THE INDOOR UNIT
PRIOR TO FILLING THE SPACE HEATING AND DHW CIRCUITS
WITH WATER AND CHECKING WATER PRESSURE AND THE
TOTAL ABSENCE OF ANY WATER LEAKAGE.
• Do not pour water over the indoor unit electrical parts. If the
electrical components are in contact with water a serious
electrical shock will take place.
• Do not touch or adjust the safety devices inside the air to water
heat pump. If these devices are touched or adjusted, a serious
accident can take place.
• Do not open the service cover or access inside the air to water
heat pump without disconnecting the main power supply.
• In case of re Turn OFF the main switch, put out the re at once
and contact your service contractor.
• It must ensure that the air to water heat pump cannot operate
accidentally without water neither with air inside hydraulic
system.
!CAUTION
• Do not use any sprays such as insecticide, lacquer, hair spray or other
ammable gases within approximately one meter from the system.
• If installation circuit breaker or the unit fuse is often activated, stop the
system and contact your service contractor.
• Do not make service or inspections tasks by yourself. This work must
be performed by a qualied service person.
• This appliance must be used only by adult and capable people,
having received the technical information or instructions to handle
this appliance properly and safely.
• Children should be supervised to ensure that they do not play with
the appliance.
• Do not let any foreign body into the water inlet and outlet piping of the
air to water heat pump.
GENERAL INFORMATION
PMML0338B rev.1 - 03/2016
1

2.3 IMPORTANT NOTICE
• The supplementary information about the purchased
products is supplied in a CD-ROM, which can be found
bundled with the indoor unit. In case that the CD-ROM is
missing or it is not readable, please contact your HITACHI
dealer or distributor.
• PLEASE READ THE MANUAL AND THE FILES ON THE
CD-ROM CAREFULLY BEFORE STARTING TO WORK ON
THE INSTALLATION OF THE AIR TO WATER HEAT PUMP
SYSTEM. Failure to observe the instructions for installation,
use and operation described in this documentation may
result in operating failure including potentially serious faults,
or even the destruction of the air to water heat pump system.
• Verify, in accordance with the manuals which appear in the
outdoor and indoor units, that all the information required for
the correct installation of the system is included. If this is not
the case, contact your distributor.
• HITACHI pursues a policy of continuous improvement in
product design and performance. The right is therefore
reserved to vary specications without notice.
• HITACHI cannot anticipate every possible circumstance that
might involve a potential hazard.
• This air to water heat pump has been designed for standard
water heating for human beings only. Do not use this for
other purposes such as for drying clothes, heating foods or
for any other heating process (except swimming pool).
• No part of this manual may be reproduced without written
permission.
• If you have any questions, contact your service contractor of
HITACHI.
• Check and make sure that the explanations of each part
of this manual correspond to your air to water heat pump
model.
• Refer to the models codication to conrm the main
characteristics of your system.
• Signal words (NOTE, DANGER and CAUTION) are used
to identify levels of hazard seriousness. Denitions for
identifying hazard levels are provided in initial pages of this
document.
• The operation modes of these units are controlled by the unit
controller.
• This manual should be considered as a permanent part of
the air to water heat pump. It gives a common description
of and information for this air to water heat pump which you
operate as well as for other models.
• Keep the water temperature of the system above the
freezing temperature.
SAFETY
PMML0338B rev.1 - 03/2016
2

ENGLISH
3 GENERAL DIMENSIONS
3.1 NAME OF PARTS AND DIMENSIONAL DATA
3.1.1 Standard model
RWD-(2.0-6.0)NWE-200S
Units in: mm
Front view
Top view
Side view
XEKS1723
Number Part name Number Part name
1 Plate heat exchanger 20 Mounting foot (x4)
2 Water pump 21 Water inlet pipe connection
2.0-3.0HP: G 1” female / 4.0-6.0HP: G1 1/4” female
3 Electric water heater 22 Water outlet pipe connection
2.0-3.0HP: G 1” female / 4.0-6.0HP: G1 1/4” female
4 Expansion vessel 6L 23 DHW inlet pipe connection - G 3/4” female
5 Water strainer 24 DHW outlet pipe connection - G 3/4” female
6 Air purger 25 Refrigerant liquid pipe connection
2.0HP: Ø 6.35 (1/4”) / 2.5~6HP: Ø9.52 (3/8”)
7 Low water pressure switch
8 Safety valve 26 Refrigerant gas pipe connection - Ø15.88 (G 3/8”)
9 Drain pipe for safety valve 27 Drain port (For indoor unit water) - G 3/8”
10 Refrigerant strainer (x2) 28 Drain port (For DHW) - G 3/8”
11 Expansion valve 29 Manual air purger
12 3-way valve (for space heating and DHW) 30 Shutdown valve (Factory supplied accessory)
13 T-branch (for space heating and DHW) 31 Tank insulation
14 Electrical box 32 DHW thermistor
15 Switch for DHW emergency operation 33 Water inlet thermistor
16 Unit controller 34 Water outlet thermistor
17 Manometer 35 Water outlet PHEX thermistor
18 DHW tank (200L) 36 Refrigerant liquid pipe thermistor
19 DHW tank heater+thermostat 37 Refrigerant gas pipe thermistor
GENERAL DIMENSIONS
PMML0338B rev.1 - 03/2016
3

RWD-(2.0-6.0)NWE-260S
Top view
Front view
Side view
XEKS1724 Units in: mm
Number Part name Number Part name
1 Plate heat exchanger 20 Mounting foot (x4)
2 Water pump 21 Water inlet pipe connection
2.0-3.0HP: G 1” female / 4.0-6.0HP: G1 1/4” female
3 Electric water heater 22 Water outlet pipe connection
2.0-3.0HP: G 1” female / 4.0-6.0HP: G1 1/4” female
4 Expansion vessel 6L 23 DHW inlet pipe connection - G 3/4” female
5 Water strainer 24 DHW outlet pipe connection - G 3/4” female
6 Air purger 25 Refrigerant liquid pipe connection
2HP: Ø6.35 (1/4”)/2.5~6HP: Ø9.52 (3/8”)
7 Low water pressure switch
8 Safety valve 26 Refrigerant gas pipe connection - Ø15.88 (G 3/8”)
9 Drain pipe for safety valve 27 Drain port (For indoor unit water) - G 3/8”
10 Refrigerant strainer 28 Drain port (For DHW) - G 3/8”
11 Expansion valve 29 Manual air purger
12 3-way valve (for space heating and DHW) 30 Shutdown valve (Factory supplied accessory)
13 T-branch (for space heating and DHW) 31 Tank insulation
14 Electrical box 32 DHW thermistor
15 Switch for DHW emergency operation 33 Water inlet thermistor
16 Unit controller 34 Water outlet thermistor
17 Manometer 35 Water outlet PHEX thermistor
18 DHW tank (260L) 36 Refrigerant liquid pipe thermistor
19 DHW tank heater+thermostat 37 Refrigerant gas pipe thermistor
GENERAL DIMENSIONS
PMML0338B rev.1 - 03/2016
4

ENGLISH
3.1.2 Model for solar combination
RWD-(2.0-6.0)NWSE-260S
Top view
Front view
Side view
Units in: mm
XEKS1725
Number Part name Number Part name
1 Plate heat exchanger 21 Water inlet pipe connection
2.0-3.0HP: G 1” female / 4.0-6.0HP: G1 1/4” female
2 Water pump 22 Water outlet pipe connection
2.0-3.0HP: G 1” female / 4.0-6.0HP: G1 1/4” female
3 Electric water heater 23 DHW inlet pipe connection - G 1/4” female
4 Expansion vessel 6L 24 DHW outlet pipe connection - G 1/4” female
5 Water strainer 25 Refrigerant liquid pipe connection
2.0HP: Ø6.35(1/4”)-2.5~6.0HP: Ø9.52(1/4”)
6 Air purger 26 Refrigerant gas pipe connection Ø15.88(5/8”)
7 Low water pressure switch 27 Drain port (for indoor unit water)- G3/8”
8 Safety valve 28 Drain port (for DHW)- G3/8”
9 Drain pipe for safety valve 29 Manual air purger
10 Refrigerant strainer (x2) 30 Shutdown valve (Factory supplied)
11 Expansion valve 31 Tank insulation
12 3-way valve (for space heating and DHW) 32 DHW thermistor
13 T-branch (for space heating and DHW) 33 Water inlet thermistor
14 Electrical box 34 Water outlet thermistor
15 Switch for DHW “emergency” operation 35 Water outlet PHEX thermistor
16 Unit controller 36 Refrigerant liquid pipe thermistor
17 Manometer 37 Refrigerant gas pipe thermistor
18 DHW tank (260L) 38 Solar coil inlet connection
19 DHW tank heater + thermostat 39 Solar coil outlet connection
20 Mounting foot (x4)
GENERAL DIMENSIONS
PMML0338B rev.1 - 03/2016
5

3.1.3 Model for UK market
RWD-(2.0-6.0)NWE-200S-K
Units in: mm
Front view
Top view
Side view
XEKS1755
Number Part name Number Part name
1 Plate heat exchanger 21 Water inlet pipe connection
2.0-3.0HP: G 1” female / 4.0-6.0HP: G1 1/4” female
2 Water pump 22 Water outlet pipe connection
2.0-3.0HP: G 1” female / 4.0-6.0HP: G1 1/4” female
3 Electric water heater 23 DHW inlet pipe connection - G 3/4” female
4 Expansion vessel 6L 24 DHW outlet pipe connection - G 3/4” female
5 Water strainer 25 Refrigerant liquid pipe connection
2.0HP: Ø6.35 (1/4”) / 2.5~6HP: Ø9.52 (3/8”)
6 Air purger
7 Low water pressure switch 26 Refrigerant gas pipe connection - Ø15.88 (G 3/8”)
8 Safety valve 27 Drain port (For indoor unit water) - G 3/8”
9 Drain pipe for safety valve 28 Drain port (For DHW) - G 3/8”
10 Refrigerant strainer (x2) 29 Manual air purger
11 Expansion valve 30 Shutdown valve (Factory supplied accessory)
12 3-way valve (for space heating and DHW) 31 Tank insulation
13 T-branch (for space heating and DHW) 32 DHW thermistor
14 Electrical box 33 Water inlet thermistor
15 Switch for DHW emergency operation 34 Water outlet thermistor
16 Unit controller 35 Water outlet PHEX thermistor
17 Manometer 36 Refrigerant liquid pipe thermistor
18 DHW tank (200L) 37 Refrigerant gas pipe thermistor
19 DHW tank heater+thermostat 38 Pressure and Temperature relief valve
20 Mounting foot (x4) 39 DHWT Thermostat
GENERAL DIMENSIONS
PMML0338B rev.1 - 03/2016
6

ENGLISH
RWD-(2.0-6.0)NWE-260S-K
Top view
Front view
Side view
XEKS1756 Units in: mm
Number Part name Number Part name
1 Plate heat exchanger 21 Water inlet pipe connection
2.0-3.0HP: G 1” female / 4.0-6.0HP: G1 1/4” female
2 Water pump 22 Water outlet pipe connection
2.0-3.0HP: G 1” female / 4.0-6.0HP: G1 1/4” female
3 Electric water heater 23 DHW inlet pipe connection - G 3/4” female
4 Expansion vessel 6L 24 DHW outlet pipe connection - G 3/4” female
5 Water strainer 25 Refrigerant liquid pipe connection
2HP: Ø6.35 (1/4”)/2.5~6HP: Ø9.52 (3/8”)
6 Air purger
7 Low water pressure switch 26 Refrigerant gas pipe connection - Ø15.88 (G 3/8”)
8 Safety valve 27 Drain port (For indoor unit water) - G 3/8”
9 Drain pipe for safety valve 28 Drain port (For DHW) - G 3/8”
10 Refrigerant strainer 29 Manual air purger
11 Expansion valve 30 Shutdown valve (Factory supplied accessory)
12 3-way valve (for space heating and DHW) 31 Tank insulation
13 T-branch (for space heating and DHW) 32 DHW thermistor
14 Electrical box 33 Water inlet thermistor
15 Switch for DHW emergency operation 34 Water outlet thermistor
16 Unit controller 35 Water outlet PHEX thermistor
17 Manometer 36 Refrigerant liquid pipe thermistor
18 DHW tank (260L) 37 Refrigerant gas pipe thermistor
19 DHW tank heater+thermostat 38 Pressure and Temperature relief valve
20 Mounting foot (x4) 39 DHWT Thermostat
GENERAL DIMENSIONS
PMML0338B rev.1 - 03/2016
7

3.2 SERVICE SPACE
3.2.1 Standard model
RWD-(2.0-6.0)NWE-(200/260)S
Top view
Front view
Units in mm.
3.2.2 Model for solar combination an UK market
RWD-(2.0-6.0)NWSE-260S(-K)
Units in mm.
Front view
Top view
>70 mm Minimum distance for
piping connection back outlet
GENERAL DIMENSIONS
PMML0338B rev.1 - 03/2016
8

ENGLISH
4 REFRIGERANT AND WATER PIPING
4.1 GENERAL NOTES BEFORE PERFORMING PIPING WORK
• Prepare locally-supplied copper pipes.
• Select the piping size with the correct thickness and correct
material able to withstand sufcient pressure.
• Select clean copper pipes. Make sure that there is no dust
or moisture inside the pipes. Blow the inside of the pipes
with oxygen free nitrogen to remove any dust and foreign
materials before connecting them.
?NOTE
A system with no moisture or oil contamination will give maximum
performance and lifecycle compared to that of a poorly prepared system.
Take particular care to ensure that all copper piping is clean and dry
internally.
• Cap the end of the pipe when pipe is to be inserted through
a wall hole.
• Do not put pipes on the ground directly without a cap or vinyl
tape at the end of the pipe.
• If piping installation is not completed until next day or over
a longer period of time, braze off the ends of the piping
and charge with oxygen free nitrogen through a Schrader
valve type access tting to prevent moisture and particle
contamination.
• It is advisable to insulate the water pipes, joints and
connections in order to avoid heat loss and dew
condensation on the surface of the pipes or accidental
injures due to excessive heat on piping surfaces.
• Do not use insulation material that contains NH3, as it can
damage copper pipe material and become a source of future
leakage.
• It is recommended to use exible joints for the water piping
inlet and outlet in order to avoid vibration transmission.
• Refrigerant circuit and Water circuit must be performed and
inspected by a licensed technician and must comply with all
relevant European and national regulations.
• Proper water pipe inspection should be performed after
piping work to assure there is no water leakage in the space
heating circuit.
4.2 REFRIGERANT CIRCUIT
4.2.1 Refrigerant charge
The R410A refrigerant is factory charged in the outdoor unit with
a refrigerant charge amount for 30 m of piping length between
outdoor and indoor unit. The maximum refrigerant piping length
is 30 m, so additional refrigerant charge is not required.
?NOTE
Refer to the outdoor unit Installation and operation manual to charge the
R410A refrigerant inside the indoor unit.
4.2.2 Precautions in the event of gas refrigerant
leaks
The installers and those responsible for drafting the
specications are obliged to comply with local safety codes and
regulations in the case of refrigerant leakage.
!CAUTION
• Check for refrigerant leakage in detail. If a large refrigerant leakage
occurred, it would cause difculty with breathing or harmful gases
would occur if a re were in the room.
• If the are nut is tightened too hard, it may crack over time and cause
refrigerant leakage.
Maximum permitted concentration of HFCs
The refrigerant R410A (charged in the outdoor unit) is an
incombustible and non-toxic gas. However, if leakage occurs
and gas lls a room, it may cause suffocation.
The maximum permissible concentration of HFC gas according
to EN378-1 is:
Refrigerant Maximum permissible concentration (kg/m3)
R410A 0.44
The minimum volume of a closed room where the system is
installed to avoid suffocation in case of leakage is:
System combination Minimum volume (m3)
2 HP 3.2
2.5 HP 3.5
3 HP 3.9
4 HP 7.5
5/6 HP 7.8
The formula used for the calculation of the maximum allowed
refrigerant concentration in case of refrigerant leakage is the
following:
R
— = C
V
R: Total quantity of refrigerant charged (kg)
V: Room volume (m³)
C: Refrigerant concentration
If the room volume is below the minimum value, some effective
measure must be taken account after installing to prevent
suffocation in case of leakage.
REFRIGERANT AND WATER PIPING
PMML0338B rev.1 - 03/2016
9

4.3 SPACE HEATING AND DHW
!DANGER
Do not connect the power supply to the indoor unit prior to lling the space heating and DHW circuit with water and checking water pressure
and the total absence of any water leakage.
4.3.1 Additional hydraulic necessary elements for space heating
Nature Nº Part name
Piping connections 1 Water inlet (Space heating)
2 Water outlet (Space heating)
Factory supplied 3 Shut-down valve (factory-supplied)
Accessories 4 Water check valve
(ATW-WCV-01 accessory)
Field supplied 5 Shut-down valve
The following hydraulic elements are necessary to correctly perform the space heating water circuit:
• Two shut-down valves (factory supplied accessory) (3) must be installed in the indoor unit. One at the water inlet connection
(1) and the other at the water outlet connection (2) in order to make easier any maintenance work.
• A water check valve (ATW-WCV-01 accessory) (4) with 1 shut-down valve (eld supplied) (5) must be connected to the water
lling point when lling the indoor unit. The check valve acts as a safety device to protect the installation against back pressure,
back ow and back syphon of non-potable water into drinking water supply net.
4.3.2 Additional hydraulic necessary elements for DHW
YUTAKI S COMBI is factory-supplied ready for DHW operation (Fitted with DHW tank and 3-way valve). Only the following elements
are required in the DHW circuit:
Nature Nº Part name
Piping connections 1 Water inlet (DHW)
2 Water outlet (DHW)
Field supplied
3
Pressure and temperature relief valve
3a Shut-down valve
3b Water check valve
3c Pressure relief valve
4 Shut-down valve
5 Draining
• 1 Shut-down valve (eld supplied): one shut-down valve (4) must be connected after the DHW water outlet connection of the
DHW tank (2) in order to make easier any maintenance work.
• A Security water valve (Field-supplied): this accessory (3) is a pressure and temperature relief valve that must be installed as
near as possible to the DHW water inlet connection of the DHW tank (1). It should ensure a correct draining (5) for the discharge
valve of this valve. This security water valve should provide the following:
-Pressure protection
-Non-return function
-Shut-down valve
-Filling
-Draining
?NOTE
The discharge pipe should always be open to the atmosphere, free of frost and in continuous slope to the down side in case that water leakage exists.
REFRIGERANT AND WATER PIPING
PMML0338B rev.1 - 03/2016
10