Hitachi RPI-2.0FSN1E, RCD-2.0FSN, RPK-2.0FSNM, RPF-2.0FSNE, RPFI-2.0FSNE Installation And Operation Manual

Read and understand this manual before using this air conditioner. Keep this manual for future reference.
Lea atentamente el presente manual antes de utilizar el sistema de aire acondicionado. Guárdelo para futuras consultas.
Lesen Sie dieses Handbuch gründlich durch, bevor Sie diese Klimaanlage benutzen. Benutzen Sie dieses Handbuch
für eventuell auftretende Fragen oder Probleme.
Lisez ce manuel jusqu'à totale compréhension avant d'installer cet appareil de climatisation. Conservez ce manuel afin
de vous y référer ultérieurement.
Leggere e comprendere il presente manuale prima di utilizzare il condizionatore d'aria. Conservare il presente manuale
per la consultazione futura.
Leia e compreenda este manual antes de utilizar este ar condicionado. Guarde este manual para referência futura.
Læs denne vejledning grundigt, inden du tager klimaanlægget i brug. Gem vejledningen til fremtidige opslag.
Lees deze handleiding goed door voordat u de airconditioner gebruikt. Bewaar de handleiding voor later gebruik.
Läs denna handbok noga innan luftkonditioneringsaggregatet används. Spara handboken för framtida bruk.

.Διαβάστε προσεκτικά αυτό το εγχειρίδιο πριν τη χρή ση του κλιματιστικού. Κρατήστε το εγχειρίδιο για μελλοντική αναφορά

Read

and understand this manual before using this air conditioner. Keep this manual for future reference.

Lea

atentamente el presente manual antes de utilizar el sistema de aire acondicionado. Guárdelo para futuras consultas.

Lesen

Sie dieses Handbuch gründlich durch, bevor Sie diese Klimaanlage benutzen. Benutzen Sie dieses Handbuch

für

eventuell auftretende Fragen oder Probleme.

Lisez

ce manuel jusqu'à totale compréhension avant d'installer cet appareil de climatisation. Conservez ce manuel afin

de

vous y référer ultérieurement.

Leggere

e comprendere il presente manuale prima di utilizzare il condizionatore d'aria. Conservare il presente manuale

per

la consultazione futura.

Leia

e compreenda este manual antes de utilizar este ar condicionado. Guarde este manual para referência futura.

Læs

denne vejledning grundigt, inden du tager klimaanlægget i brug. Gem vejledningen til fremtidige opslag.

Lees

deze handleiding goed door voordat u de airconditioner gebruikt. Bewaar de handleiding voor later gebruik.

Läs

denna handbok noga innan luftkonditioneringsaggregatet används. Spara handboken för framtida bruk.

.Διαβάστε

προσεκτικά αυτό το εγχειρίδιο πριν τη χρή ση του κλιματιστικού. Κρατήστε το εγχειρίδιο για μελλοντική αναφορά

INSTALLATION AND OPERATION MANUAL
MANUAL DE INSTALACIÓN Y FUNCIONAMIENTO
INSTALLATIONS- UND BETRIEBSHANDBUCH
MANUEL D’INSTALLATION ET DE FUNCTIONNEMENT
MANUALE D’INSTALLAZIONE E D’USO

INSTALLATION

AND OPERATION MANUAL

MANUAL

DE INSTALACIÓN Y FUNCIONAMIENTO

INSTALLATIONS-

UND BETRIEBSHANDBUCH
MANUEL D’INSTALLATION ET DE FUNCTIONNEMENT
MANUALE

D’INSTALLAZIONE E D’USO

ENGLISH

ESPAÑOL

DEUTSCH

FRANÇAIS

ITALIANO

PORTUGUÊS

DANSK

NEDERLANDS

SVENSKA

MANUAL DE INSTALAÇÄO E DE FUNCIONAMENTO
BRUGER- OG MONTERINGSVEJLEDNING
INSTALLATIE- EN BEDIENINGSHANDLEIDING
HANDBOK FÖR INSTALLATION OCH ANVÄNDING

ΕΓΧΕΙΡΙΔΙΟΕΓΚΑΤΑΣΤΑΣΗΣΚΑΙΛΕΙΤΟΥΡΓΙΑΣ

MANUAL DE INSTALAÇÄO E DE FUNCIONAMENTO
BRUGER-

OG MONTERINGSVEJLEDNING

INSTALLATIE-

EN BEDIENINGSHANDLEIDING

HANDBOK

FÖR INSTALLATION OCH ANVÄNDING

ΕΓΧΕΙΡΙΔΙΟΕΓΚΑΤΑΣΤΑΣΗΣΚΑΙΛΕΙΤΟΥΡΓΙΑΣ

DC INVERTER HVRN1 / FSN(1)E

ΕΛΛΗΝΙΚΑ

Specifications in this catalogue 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 dimensions and specifications are correct,

any printers' errors not rectified are outside the control of HITACHI, who cannot be held

responsible for same

Ô ATTENTION:

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 Air Conditioner, its dismantling must be done by a
professional installer according to the applicable regulations.
Contact to the corresponding authorities for more information.
The above regulation is from the WEEE Directive in EU. Therefore, this is applied only for EU.

Ô ATENCIÓN:

Éste producto no se debe eliminar con la basura doméstica al final 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 el sistema de aire acondicionado, su desmontaje
debe realizarlo un instalador profesional de acuerdo con la normativa aplicable.
Para obtener más información, póngase en contacto con las autoridades competentes.

Ô ACHTUNG:

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, des Öls und anderer in der Klimaanlage enthaltener Komponenten muss die Demontage von
einem Fachmann entsprechend den geltenden Vorschriften durchgeführt werden.
Für weitere Informationen setzen Sie sich bitte mit den entsprechenden Behörden in Verbindung.

Ô ATTENTION:

Ne doit pas être mélangé aux ordures ménagères ordinaires à la fin 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 le climatiseur contient, son démontage doit être réalisé
par un installateur professionnel conformément aux réglementations en vigueur.
Pour de plus amples informations, contactez les autorités compétentes.

Ô ATTENZIONE:

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 fine della propria vita utile deve
essere raccolto separatamente dagli altri rifiuti.
L'utente dovrà, pertanto, conferire l'apparecchiatura giunta a fine vita agli idonei centri di raccolta differenziata dei rifiuti
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.

Ô ATENÇÃO:

O seu produto não deve ser misturado com os desperdícios domésticos de carácter geral no final 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.
Devido ao refrigerante, ao óleo e a outros componentes contidos no Ar condicionado, a desmontagem deve ser realizada
por um instalador profissional de acordo com os regulamentos aplicáveis.
Contacte as autoridades correspondentes para obter mais informações.

Ô BEMÆRK:

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 klimaanlægget 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.

Ô ATTENTIE:

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.
Vanwege het koelmiddel, de olie en andere onderdelen in de airconditioner moet het apparaat volgens de geldige
regulering door een professionele installateur uit elkaar gehaald worden.
Neem contact op met de betreffende overheidsdienst voor meer informatie.

Ô OBS!:

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.
Luftkonditioneringsaggregatet innehåller kylmedium, olja och andra komponenter, vilket gör att det måste demonteras av en
fackman i enlighet med tillämpliga regelverk.
Ta kontakt med ansvarig myndighet om du vill ha mer information.

Ô ȆȇȅȈȅȋǾ:

ȈȘµĮȓȞİȚ ȩIJȚ IJȠ ʌȡȠȧȩȞ įİȞ șĮ ʌȡȑʌİȚ ȞĮ ĮȞĮµȚȤșİȓ µİ IJĮ įȚȐijȠȡĮ ȠȚțȚĮțȐ ĮʌȠȡȡȓµµĮIJĮ ıIJȠ IJȑȜȠȢ IJȠȣ țȪțȜȠȣ ȗȦȒȢ IJȠȣ țĮȚ șĮ ʌȡȑʌİȚ ȞĮ
ĮʌȠıȣȡșİȓ ıȪµijȦȞĮ µİ IJȠȣȢ țĮIJȐȜȜȘȜȠȣȢ IJȠʌȚțȠȪȢ Ȓ İșȞȚțȠȪȢ țĮȞȠȞȚıµȠȪȢ țĮȚ µİ IJȡȩʌȠ ijȚȜȚțȩ ʌȡȠȢ IJȠ ʌİȡȚȕȐȜȜȠȞ.
ȁȩȖȦ IJȠȣ ȥȣțIJȚțȠȪ, IJȠȣ ȜĮįȚȠȪ țĮȚ ȐȜȜȦȞ ıIJȠȚȤİȓȦȞ ʌȠȣ ʌİȡȚȑȤȠȞIJĮȚ ıIJȠ țȜȚµĮIJȚıIJȚțȩ, ȘĮʌȠıȣȞĮȡµȠȜȩȖȘıȒ IJȠȣ ʌȡȑʌİȚ ȞĮ ȖȓȞİȚ Įʌȩ
İʌĮȖȖİȜµĮIJȓĮ IJİȤȞȚțȩ țĮȚ ıȪµijȦȞĮ µİ IJȠȣȢ ȚıȤȪȠȞIJİȢ țĮȞȠȞȚıµȠȪȢ.
īȚĮ ʌİȡȚııȩIJİȡİȢ ȜİʌIJȠµȑȡİȚİȢ, İʌȚțȠȚȞȦȞȒıIJİ µİ IJȚȢ ĮȞIJȓıIJȠȚȤİȢ ĮȡȤȑȢ.

¼

DANGER – Immediate hazard which WILL result in severe injury or death.
PELIGRO – Riesgos inmediatos que PRODUCIRÁN lesiones personales graves e incluso la muerte.
GEFAHR – Unmittelbare Gefahrenquellen, die zu schweren Verletzungen oder zum Tod führen.
DANGER – Dangers instantanés de blessures corporelles sévères ou de mort.
PERICOLO – Pericolo immediato che PRODURRÀ ferite gravi o la morte.
PERIGO – Problemas imediatos que IRÃO resultar em graves ferimentos pessoais ou morte.
FARE – Overhængende fare, som VIL resultere i alvorlig personskade eller dødsfald.
GEVAAR – Onmiddellijke risico's die ernstige persoonlijke verwondingen of de dood ten gevolge kunnen hebben.
FARA – Omedelbar risk som medför svår personskada eller död.
KINAYNO – DZµİıȠȢ țȓȞįȣȞȠȢ ʌȠȣ Ĭǹ ȑȤİȚ ȦȢ ĮʌȠIJȑȜİıµĮ ıȠȕĮȡȑȢ ıȦµĮIJȚțȑȢ ȕȜȐȕİȢ Ȓ șȐȞĮIJȠ.

»

WARNING – Hazards or unsafe practices which COULD result in severe personal injuries or death.
AVISO – Riesgos o prácticas poco seguras que PODRÍAN producir lesiones personales e incluso la muerte.
WARNUNG – Gefährliche oder unsichere Anwendung, die zu schweren Körperverletzungen oder zum Tod

führen kann.
ATTENTION – Utilisation dangereuse ou sans garantie de sécurité qui PEUT provoquer de sévères blessures
personnelles ou la mort.

AVVISO – Pericoli o azioni pericolose che POTREBBERO avere come esito lesioni fisiche gravi o il decesso.
AVISO – Riesgos o prácticas poco seguras que PUEDEN producir lesiones personales e incluso la muerte
ADVARSEL – Farer eller farlig brug, som KAN resultere i alvorlig personskade eller dødsfald.
WAARSCHUWING – Gevaren of onveilige praktijken die ernstig persoonlijk letsel of de dood tot

gevolg KUNNEN hebben.
VARNING – Risker eller osäkra tillvägagångssätt som KAN leda till svåra personskador eller dödsfall.

ȆȇȅǼǿǻȅȆȅǿǾȈǾ – ȀȓȞįȣȞȠȚ Ȓ İʌȚțȓȞįȣȞİȢ ʌȡĮțIJȚțȑȢ, ȠȚ ȠʌȠȓİȢ ȂȆȅȇǼǿ ȞĮ ȑȤȠȣȞ ȦȢ ĮʌȠIJȑȜİıµĮ ıȠȕĮȡȑȢ
ıȦµĮIJȚțȑȢ ȕȜȐȕİȢ Ȓ șȐȞĮIJȠ.



CAUTION – Hazards or unsafe practices which COULD result in minor personal injury or product or property damage.
PRECAUCIÓN – Riesgos o prácticas poco seguras que PODRÍAN provocar lesiones personales de menor

importancia o daños en el producto u otros bienes.
VORSICHT – Gefährliche oder unsichere Anwendung, die geringfügigen Personen-, Produkt- oder Sachschaden
verursachen kann.
PRECAUTION – Utilisation dangereuse ou sans garantie de sécurité qui PEUT provoquer des blessures mineures
ou des dommages au produit ou aux biens.
ATTENZIONE – Pericoli o azioni pericolose che POTREBBERO avere come esito lesioni fisiche minori o danni
al prodotto o ad altri beni.
CUIDADO – Perigos e procedimentos perigosos que PODERÃO PROVOCAR danos pessoais ligeiros ou danos
em produtos e bens.

FORSIGTIG – Farer eller farlig brug, som KAN resultere i mindre skade på personer, produkt eller ejendom.
LET OP – Gevaren of onveilige praktijken die licht persoonlijk letsel of beschadiging van het product

of eigendommen tot gevolg KUNNEN hebben.
VARSAMHET – Risker eller farliga tillvägagångssätt som KAN leda till mindre personskador eller skador
på produkten eller på egendom.

ȆȇȅȈȅȋǾ – ȀȓȞįȣȞȠȚ Ȓ İʌȚțȓȞįȣȞİȢ ʌȡĮțIJȚțȑȢ, ȠȚ ȠʌȠȓİȢ ȂȆȅȇǼǿ ȞĮ ȑȤȠȣȞ ȦȢ ĮʌȠIJȑȜİıµĮ IJȘȞ ʌȡȩțȜȘıȘ
İȜĮijȡȫȞ ıȦµĮIJȚțȫȞ ȕȜĮȕȫȞ Ȓ țĮIJĮıIJȡȠijȒ ʌİȡȚȠȣıȓĮȢ.

INDEX ÍNDICE

PART I OPERATION

1. SAFETY SUMMARY

2. IMPORTANT NOTICE

3. SYSTEM DESCRIPTION

4. BEFORE OPERATION

5. REMOTE CONTROLLER OPERATION

6. AUTOMATIC CONTROLS

7. BASIC TROUBLESHOOTING

PART II INSTALLATION

8. NAME OF PARTS

9. REFRIGERANT CYCLE

10. UNITS INSTALLATION

11. REFRIGERANT PIPING & REFRIGERANT CHARGE

12. DRAIN PIPING

13. ELECTRIC WIRING

14. INSTALLATION OF REMOTE CONTROLLER

15. TEST RUNNING

16. SAFETY SUMMARY & CONTROL DEVICE SETTING

17. TROUBLESHOOTING

1ª PARTE: FUNCIONAMIENTO

1. RESUMEN DE SEGURIDAD

2. AVISO IMPORTANTE

3. DESCRIPCIÓN DEL SISTEMA

4. ANTES DEL FUNCIONAMIENTO

5. FUNCIONAMIENTO DEL CONTROL REMOTO

6. CONTROLES AUTOMÁTICOS

7. RESOLUCIÓN DE PROBLEMAS BÁSICOS

2ª PARTE: INSTALACIÓN

8. NOMBRE DE LAS PIEZAS

9. CICLO DE REFRIGERANTE

10. INSTALACIÓN DE LAS UNIDADES

11. TUBERÍA Y CARGA DE REFRIGERANTE

12. TUBERÍA DE DESAGÜE

13. CABLEADO ELÉCTRICO

14. INSTALACIÓN DEL CONTROL REMOTO

15. PRUEBAS

16. RESUMEN DE SEGURIDAD Y AJUSTE DE LOS
DISPOSITIVOS DE CONTROL

17. RESOLUCIÓN DE PROBLEMAS

INHALTSVERZEICHNIS INDEX

TEIL I – BETRIEB

1. SICHERHEITSÜBERSICHT

2. WICHTIGER HINWEIS

3. SYSTEMBESCHREIBUNG

4. VOR DER INBETRIEBNAHME

5. BETRIEB MIT FERNBEDIENUNG

6. AUTOMATISCHE STEUERUNG

7. GRUNDLEGENDE FEHLERBESEITIGUNG

TEIL II – INSTALLATION

8. TEILEBEZEICHNUNG

9. KÜHLKREISLAUF

10. GERÄTEINSTALLATION

11. KÄLTEMITTELROHRE UND KÄLTEMITTELMENGE

12. ZUSÄTZLICHE KÜHLMITTELMENGE

13. VERKABELUNG

14. INSTALLATION EINER FERNBEDIENUNG

15. TESTLAUF

16. SICHERHEITSÜBERSICHT UND EINSTELLUNG DER
STEUERGERÄTE

17. FEHLERBEHEBUNG

PARTIE I – FONCTIONNEMENT

1. SOMMAIRE DES DISPOSITIFS DE SÉCURITÉ

2. REMARQUES IMPORTANTES

3. DESCRIPTION DU SYSTÈME

4. AVANT L’UTILISATION

5. FONCTIONNEMENT DE LA TÉLÉCOMMANDE

6. CONTRÔLES AUTOMATIQUES

7. DÉPANNAGE DE BASE

PARTIE II – INSTALLATION

8. NOMENCLATURE DES PIÈCES

9. CYCLE DU FLUIDE FRIGORIGÈNE

10. INSTALLATION DES UNITÉS

11. TUYAUTERIE DU FLUIDE FRIGORIGÈNE ET CHARGE
DU FLUIDE FRIGORIGÈNE

12. TUYAUTERIE D'ÉVACUATION DES CONDENSATS

13. CÂBLAGE ÉLECTRIQUE

14. INSTALLATION DE LA TÉLÉCOMMANDE

15. TEST DE FONCTIONNEMENT

16. SOMMAIRE DES DISPOSITIFS DE SÉCURITÉ &
RÉGLAGE DES ORGANES DE CONTRÔLE

17. DEPANNAGE

INDICE ÍNDICE

PARTE I FUNZIONAMENTO

1. PRECAUZIONI PER LA SICUREZZA

2. NOTA IMPORTANTE

3. DESCRIZIONE DEL SISTEMA

4. PROCEDURA PRELIMINARE

5. FUNZIONAMENTO DEL COMANDO REMOTO

6. CONTROLLI AUTOMATICI

7. RISOLUZIONE DEI PROBLEMI MINORI
PART II INSTALLAZIONE

8. NOMENCLATURA DEI COMPONENTI

9. REFRIGERANT CYCLE 10.CICLO REFRIGERANTE

10. INSTALLAZIONE DELLE UNITÀ

11. LINEA DEL REFRIGERANTE E CARICA DI
REFRIGERANTE

12. LINEA DI DRENAGGIO

13. COLLEGAMENTI ELETTRICI

14. INSTALLAZIONE DEL COMANDO REMOTO

15. COLLAUDO DI PROVA

16. RIEPILOGO DELLE IMPOSTAZIONI DEI DISPOSITIVI DI
CONTROLLO E SICUREZZA

17. ELIMINAZIONE DEI GUASTI

PARTE I FUNCIONAMENTO

1. RESUMO DA SEGURANÇA

2. NOTA IMPORTANTE

3. DESCRIÇÃO DO SISTEMA

4. ANTES DE ARRANCAR A UNIDADE

5. FUNCIONAMENTO DO CONTROLO REMOTO

6. CONTROLOS AUTOMÁTICOS

7. RESOLUÇÃO DE PROBLEMAS BÁSICOS

PARTE II INSTALAÇÃO

8. NOME DAS PEÇAS

9. CICLO DE REFRIGERAÇÃO

10. INSTALAÇÃO DAS UNIDADES

11. TUBAGEM DE REFRIGERANTE E CARGA DE
REFRIGERANTE

12. TUBAGEM DE ESGOTO

13. LIGAÇÕES ELÉCTRICAS

14. INSTALAÇÃO DO CONTROLO REMOTO

15. PROVA DE FUNCIONAMENTO

16. SUMÁRIO DE SEGURANÇA E AJUSTE DE DISPOSITIVO
DE CONTROLO

17. RESOLUÇÃO DE PROBLEMAS

INDHOLDSFORTEGNELSE INHOUDSOPGAVE

DEL I - BETJENING

1. OVERSIGT OVER SIKKERHEDSFORSKRIFTER

2. VIGTIG INFORMATION

3. BESKRIVELSE AF ANLÆG

4. FØR BETJENING

5. FJERNBETJENING

6. AUTOMATISK BETJENING

7. GRUNDLÆGGENDE FEJLFINDING

DEL II- MONTERING

8. NAVNE PÅ DELE

9. KØLEKREDSLØB

10. MONTERING AF ENHEDER

11. KØLERØRSYSTEM OG PÅFYLDNING AF KØLEMIDDEL

12. AFLØBSRØR

13. ELEKTRISK LEDNINGSFØRING

14. MONTERING AF FJERNBETJENING

15. TESTKØRSEL

16. OVERSIGT OVER INDSTILLINGER FOR SIKKERHEDS­OG KONTROLENHEDER

17. FEJLFINDING

DEEL I BEDIENING

1. OVERZICHT VEILIGHEID

2. BELANGRIJKE MEDEDELING

3. BESCHRIJVING VAN HET SYSTEEM

4. VOORDAT U HET SYSTEEM IN GEBRUIK NEEMT

5. GEBRUIK VAN DE EXTERNE BEDIENING

6. AUTOMATISCHE BESTURING

7. ELEMENTAIRE PROBLEMEN OPLOSSEN

DEEL II INSTALLATIE

8. NAMEN VAN ONDERDELEN

9. KOELCYCLUS

10. INSTALLATIE VAN DE UNITS

11. KOELMIDDELLEIDINGEN & KOELMIDDEL VULLEN

12. AFVOERLEIDING

13. ELEKTRISCHE BEDRADING

14. INSTALLATIE VAN EXTERNE BEDIENING

15. PROEFDRAAIEN

16. OVERZICHT VEILIGHEID & BESTURINGSINRICHTING

17. PROBLEMEN OPLOSSEN

INNEHALLSFÖRTECKNING

ǼȊȇǼȉǾȇǿȅ

DEL I ANVÄNDNING

1. SÄKERHETSFÖRESKRIFTER

2. VIKTIG ANMÄRKNING

3. SYSTEMÖVERSIKT

4. FÖRE ANVÄNDNING

5. ANVÄNDA FJÄRRKONTROLLEN

6. AUTOMATIK

7. FELSÖKNING

DEL II INSTALLATION

8. DELAR

9. KYLMEDIETS CYKEL

10. INSTALLATION AV ENHETER

11. KYLRÖR & PÅFYLLNING AV KYLMEDIUM

12. DRÄNERINGSRÖR

13. ELEKTRISKA LEDNINGAR

14. INSTALLATION AV FJÄRRKONTROLL

15. PROVKÖRNING

16. SÄKERHETSINSTÄLLNINGAR

17. FELSÖKNING

ȂǼȇȅȈ ǿ – ȁǼǿȉȅȊȇīǿǹ

1. ȈȊȃȅȆȉǿȀǼȈ ȆȇȅĭȊȁǹȄǼǿȈ ǹȈĭǹȁǼǿǹȈ

2. ȈǾȂǹȃȉǿȀǾ ȆǹȇǹȉǾȇǾȈǾ

3. ȆǼȇǿīȇǹĭǾ ȉȅȊ ȈȊȈȉǾȂǹȉȅȈ

4. Ȇȇǿȃ ȉǾ ȁǼǿȉȅȊȇīǿǹ

5. ȁǼǿȉȅȊȇīǿǹ ȉǾȁǼȋǼǿȇǿȈȉǾȇǿȅȊ

6. ǹȊȉȅȂǹȉǼȈ ȁǼǿȉȅȊȇīǿǼȈ

7. ǹȃȉǿȂǼȉȍȆǿȈǾ ȆȇȅǺȁǾȂǹȉȍȃ - ǺǹȈǿȀǹ

ȂǼȇȅȈ ǿǿ – ǼīȀǹȉǹȈȉǹȈǾ

8. ȅȃȅȂǹȉǹ ǼȄǹȇȉǾȂǹȉȍȃ

9. ȀȊȀȁȅȈ ȌȊȄǾȈ

10. ǼīȀǹȉǹȈȉǹȈǾ ǼȈȍȉǼȇǿȀȍȃ Ȃȅȃǹǻȍȃ

11. ȈȍȁǾȃȍȈǼǿȈ ȌȊȀȉǿȀȅȊ & ȆȁǾȇȍȈǾ ȂǼ ȌȊȀȉǿȀȅ

ȂǼȈȅ

12. ȈȍȁǾȃȍȈǼǿȈ ǹȆȅȋǼȉǼȊȈǾȈ

13. ǾȁǼȀȉȇǿȀǾ ȀǹȁȍǻǿȍȈǾ

14. ǼīȀǹȉǹȈȉǹȈǾ ȉȅȊ ȋǼǿȇǿȈȉǾȇǿȅȊ

15. ǻȅȀǿȂǹȈȉǿȀǾ

ȁǼǿȉȅȊȇīǿǹ

16. ȈȊȃȅȆȉǿȀǼȈ ȆȇȅĭȊȁǹȄǼǿȈ ǹȈĭǹȁǼǿǹȈ &
ȇȊĬȂǿȈǼǿȈ ȈȊȈȀǼȊȍȃ ǼȁǼīȋȅȊ

17. ǹȃȉǿȂǼȉȍȆǿȈǾ ȆȇȅǺȁǾȂǹȉȍȃ

MODELS CODIFICATION

Important note: Please, check, according to the model name, which is your air conditioner
type, how it is abbreviated and referred to in this instruction manual. This Installation and
Operation Manual is only related to Indoor Units FSN(1)E combined with Outdoor Units
HVRN1.

CODIFICACIÓN DE MODELOS

Nota importante: compruebe, de acuerdo con el nombre del modelo, el tipo de sistema
de aire acondicionado del que dispone, su abreviatura y su referencia en el presente manual
de instrucciones. Este Manual de instalación y funcionamiento sólo está relacionado con
unidades interiores FSN(1)E combinadas con unidades externas HVRN1.

MODELLCODES

Wichtiger Hinweis: Bitte stellen Sie anhand der Modellbezeichnung den Klimaanlagentyp
und das entsprechende, in diesem Technischen Handbuch verwendete Kürzel fest. Dieses
Installations- und Betriebshandbuch bezieht sich nur auf FSN(1)E-Innengeräte in Kombination
mit HVRN1. -Außengeräten.

CODIFICATION DES MODÈLES

Note importante : Veuillez déterminer, d'après le nom du modèle, quel est votre type de
climatiseur et quelle est son abréviation et référence dans le présent manuel d'instruction.
Ce manuel d'installation et de fonctionnement ne concernent que les unités intérieures
FSN(1)E combinées à des groupes extérieurs HVRN1.

CODIFICAZIONE DEI MODELLI

Nota importante: in base al nome del modello, verificare il tipo di climatizzatore in possesso
nonché il tipo di abbreviazione e di riferimento utilizzati in questo manuale di istruzioni.
Questo manuale di installazione e di funzionamento fa riferimento alla sola combinazione
di unità interne FSN(1)E e unità esterne HVRN1.

INDOOR UNIT · UNIDAD INTERIOR · INNEINHEIT · UNITÉ INTERIEUR · UNITÀ INTERNA · UNIDADE INTERIOR

INDENDØRS AGGREGAT · BINNENTOESTEL · INOMHUSENHET · ǼȈȍȉǼȇǿȀǾ Ȃȅȃǹǻǹ

Cassette

Empotrado

Kassette

Cassete

A Cassetta

Cassete
Kassette
Cassette

Kassett

ȀĮıȑIJĮȢ

Cassette

Empotrado

Kassette

Cassete 2 vois

A Cassetta

Cassete
Kassette
Cassette

Kassett

ȀĮıȑIJĮȢ

Ceiling

Techo

Deckengerät

plafonnier

A soffitto

Tecto

Lofthængt

Plafondmodel

I taket

ȅȡȠijȒȢ

In the ceiling

Conducto

Deckeneinbau

Gainable

A controsoffitto

Encastrar no tecto

I loftet

Inbouwversie

I taket

ǼıȦIJİȡȚțȠȪ

ȠȡȠijȒȢ

Wall Type

Tipo mural
Wandgerät
Type mural

Tipo a parete

Tipo mural
Vægmodel

Wandmodel
Väggmodell

ȉȠȓȤȠȣ

Floor Type

De pie

Stand

Sol

Modello verticale

Pavimento

Gulv

Vloermodel

Golv

ǻĮIJIJİįȠȣ

Floor Concealed

Type

De pie oculto

Stand-Einbau

Sol encastré

Modello verticale

a incasso
Embutido

Gulvpanel

Inbouw-

vloermodel

Inbyggd golvtyp

KȡuijȒ ǻĮIJIJİįȠȣ

RCIM-2.0FSN
RCI-2.0FSN1E RCD-2.0FSN RPC-2.0FSNE RPI-2.0FSN1E RPK-2.0FSNM RPF-2.0FSNE RPFI-2.0FSNE
RCI-2.5FSN1E RCD-2.5FSN RPC-2.5FSNE RPI-2.5FSN1E RPK-2.5FSNM RPF-2.5FSNE RPFI-2.5FSNE

1~

1~

1~

1~

1~

1~

1~

RCI RCD RPC RPI RPK RPF RPFI

CODIFICAÇÃO DE MODELOS

Nota Importante: por favor, verifique, de acordo com o nome do modelo, qual é o seu tipo
de ar condicionado, e como este é abreviado e mencionado neste manual de instruções.
Este manual de instalação e de funcionamento só está relacionado com a unidade interior
FSN(1)E combinada com as unidades exteriores HVRN1.

MODELKODIFICERING

Vigtig information: Kontroller modelnavnet på dit klimaanlæg for at se, hvilken type
klimaanlæg du har, hvordan det forkortes, og hvordan der henvises til det i denne vejledning.
Denne bruger- og monteringsvejledning gælder kun FSN(1)E-indendørsenheder kombineret
med HVRN1.-udendørsenheder.

CODERING VAN DE MODELLEN

Belangrijke opmerking: Controleer aan de hand van de modelnaam welk type airconditioner
u heeft, hoe de naam wordt afgekort en hoe ernaar wordt verwezen in deze instructie­handleiding. Deze Installatie- en bedieningshandleiding heeft alleen betrekking op
binnenunits FSN(1)E gecombineerd met buitenunits HVRN1.

MODELLER

Viktigt! Kontrollera med modellnamnet vilken typ av luftkonditionering du har, hur den
förkortas och hur den anges i den här handboken. Denna handbok för installation och
användning gäller endast för inomhusenheter FSN(1)E kombinerade med utomhusenheter
HVRN1.

ȀȍǻǿȀȅȆȅǿǾȈǾ ȂȅȃȉǼȁȍȃ ȈȘµĮȞIJȚțȒ ıȘµİȓȦıȘ: ǼȜȑȖȟIJİ, ıȪµijȦȞĮ µİ IJȠ ȩȞȠµĮ µȠȞIJȑȜȠȣ, IJȠȞ IJȪʌȠ IJȠȣ įȚțȠȪ ıĮȢ

țȜȚµĮIJȚıIJȚțȠȪ țĮȚ µİ ʌȠȚĮ ıȪȞIJµȘıȘ įȘȜȫȞİIJĮȚ țĮȚ ĮȞĮijȑȡİIJĮȚ ıİ ĮȣIJȩ IJȠ İȖȤİȚȡȓįȚȠ. ǹȣIJȩ
IJȠ İȖȤİȚȡȓįȚȠ İȖțĮIJȐıIJĮıȘȢ țĮȚ ȜİȚIJȠȣȡȖȓĮȢ ĮijȠȡȐ µȩȞȠ IJȚȢ ǼıȦIJİȡȚțȑȢ ȂȠȞȐįİȢ FSN(1)E ıİ
ıȣȞįȣĮıµȩ µİ ǼȟȦIJİȡȚțȑȢ ȂȠȞȐįİȢ HVRN1.

OUTDOOR UNIT · UNIDAD EXTERIOR · AUßENEINHEIT · UNITÉ EXTÉRIEURE · UNITÀ ESTERNA ·

UNIDADE EXTERIOR · UDEND∅RS AGGREGAT · BUITENTOESTEL · UTOMHUSENHET · ǼȄȍȉǼȇǿȀǾ Ȃȅȃǹǻǹ

HEAT PUMP MODELS

MODELOS CON BOMBA DE CALOR

WÄRMEPUMPENMODELLE

MODÈLES POMPE À CHALEUR

MODELLI POMPA DI CALORE

MODELOS BOMBA DE CALOR

VARMEPUMPEMODELLER

MODELLEN MET WARMTEPOMP

MODELLER ENDAST FÖR KYLNINGSFUNKTION

ȂȅȃȉǼȁǹ ȂǼ ǹȃȉȁǿǹ ĬǼȇȂȅȉǾȉǹȈ

Single Phase

Monofásico

Einphasig

Monophasé

Monofase

Monofásico

Enfaset

Eenfasig

En fas

ȂȠȞȠijĮıȚțȐ

RAS-2HVRN1

RAS-2.5HVRN1

1~

RAS

SAFETY SUMMARY

1

PART I- OPERATION

1. SAFETY SUMMARY

¶ DANGER:

Do not pour water into the indoor or outdoor unit.
These products are equipped with electrical parts.
If water contacts with electrical components then
it will cause a serious electrical shock.

Do not touch or adjust safety devices inside the
indoor or outdoor units. If these devices are touched
or adjusted, it may cause a serious accident.

Do not open the service cover or access the indoor or
outdoor units without disconnecting the main power
supply.

In case of fire Turn OFF the main switch, put out the
fire at once and contact your service contractor.

 CAUTION:

Refrigerant leakage can cause difficulty with
breathing due to insufficient air.

µ WARNING:

Do not use any sprays such as insecticide, lacquer,
hair spray or other flammable gases within
approximately one (1) meter from the system.

If circuit breaker or fuse is often activated, stop the
system and contact your service contractor.

Do not make service or inspections tasks by yourself.
This works must be performed by qualified service
person.

Do not put any strange material (sticks, etc...) into
the air inlet and outlet. These units have high speed
rotating fans and it is dangerous that any object
touches them.

 NOTE:

It is recommended to ventilate the room every
3 or4 hours.

2. IMPORTANT NOTICE

 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 continuing improvement

in design and performance of products. The right is
therefore reserved to vary specifications without notice.

 HITACHI cannot anticipate every possible circumstance

that might involve a potential hazard.

 This air conditioner has been designed for standard air

conditioning for human beings only. Do not use this for
other purposes such as for drying clothes, refrigerating
foods or for any other cooling or heating process.

 No part of this manual may be reproduced without

written permission.

 If you have any questions, contact your service

contractor of HITACHI.

 This manual gives a common description and

information for this air conditioner which you operate
as well as for other models.

 Check and make sure that the explanations of each part

of this manual correspond to your air conditioner model.

 Refer to the models codification (page 1) to confirm the

main characteristics of your system.

 Signal words (DANGER, WARNING and CAUTION) are

used to identify levels of hazard seriousness. Definitions
for identifying hazard levels are provided below with
their respective signal words.

 It is assumed that this unit will be operated and serviced

by English speaking people. If this is not the case, the
customer should add safety, caution and operating signs
in the native language of the personal.

 This air conditioner has been designed for the following

temperature. Operate the air conditioner within this
range:

Temperature

Maximum Minimum

Indoor 32°C DB/23°C WB 21°C DB/15°C WB

Cooling
Mode

Outdoor 43 °C DB -5 °C DB
Indoor 27 °C DB 15 °C DB

Heating
Mode

Outdoor 15 °C WB -15 °C WB

DB: Dry Bulb Temperature
WB: Wet Bulb Temperature

 These operations modes are controlled by the remote

control switch.

 This manual should be considered as a permanent

part of the air conditioner. This manual gives a common
description and information for this air conditioner which
you operate as well as for other models.

¶ DANGER:

Pressure Vessel and Safety Device: This air
conditioner is equipped with a high pressure vessel
under PED (Pressure Equipment Directive). The
pressure vessel has been designed and tested before
shipment according to PED. Also, in order to prevent
the system from an abnormal pressure, a high
pressure switch, which needs no field adjustment, is
utilized in the refrigeration system.
Therefore, this air conditioner is protected from
abnormal pressures. However, if abnormally high
pressure is applied to the refrigeration cycle including
the high pressure vessel(s), it will result in serious
injury or death due to explosion of the pressure
vessel. Do not apply a pressure higher than the
following pressure to the system, by modifying or
changing the high pressure switch.

 CAUTION:

This unit is designed for commercial and light
industrial application. If installed in house hold
appliance, it could cause electromagnetic
interference.

2

SYSTEM DESCRIPTION

Start-up and Operation:

Check to ensure that all the stop valves are fully opened
and no obstacle exists at the inlet/outlet sides before start­up and during the operation.

Maintenance:

Periodically check the high pressure side pressure. If the
pressure is higher than the maximum allowable pressure,
stop the system and clean the heat exchanger or remove
the cause.

Maximum Allowable Pressure and High Pressure Cut-out Value:

Product Series Outdoor Unit Model Refrigerant

Maximun

Allowable

Pressure (MPa)

High Pressure

Switch Cut-out

Value (MPa)

HVRN1 Series RAS-2HVRN1, RAS-2.5HVRN1 R410A 4.15 4.00 ~ 4.10

 NOTE:

The label for the vessel under PED are attached on the high pressure vessel. The pressure vessel capacity and vessel
category are indicated on the vessel.

Location of High Pressure Switch

Compressor

 NOTE:

The high pressure switch is indicated on the electrical
wiring diagram in the outdoor unit as PSH connected
to printed circuit board (PCB1) in the outdoor unit

Structure of High Pressure Switch

Contact Point Pressure Detected

Connected to the electrical wire

¶ DANGER:

Do not change the high-pressure switch locally or
change the high pressure cut-out set value locally. If
changed, it will cause serious injury or death due to
explosion.

Do not attempt to turn service valve rod beyond its
stop position.

3. SYSTEM DESCRIPTION

- Long piping for high-rise buildings.

- Various combinations, 7 types and 15 models of indoor units type capacity from 5.6kW to 7.0kW.

- Flexibility of indoor unit control.

- High reliability.

- Space saving.

- Easy installation.

(m)

HVRN1

Unit Power

2/2.5HP

Maximum Piping Lenght Lo-i:

- Actual Length

50

- Equivalent Length

70

Maximum Piping Length Ho-i:

- Outdoor Unit is higher than Indoor Unit

30

- Indoor Unit is higher than Outdoor Unit

20

4. BEFORE OPERATION

 CAUTION:

Supply electrical power to the system for
approximately 12 hours before start-up or a long
shutdown. Do not start the system immediately

after
power supply, it may cause a compressor failure
because the compressor is not heated well.

When the system is started after a shutdown longer
that approximately 3 months, it is recommended to
check the system by your service contractor.

Turn OFF the main switch when the system is to be
stopped for a long period of time: If the main switch is
not turned OFF, electricity will be used, because the

oil heater is always energised during compressor
stopping.

Make sure that the outdoor unit is not covered with
snow or ice. If covered, remove it by using hot water
(approximately 50°C). If the water temperature is
higher that 50°C, it will cause damage to plastic parts.

REMOTE CONTROLLER OPERATION

3

5. REMOTE CONTROLLER OPERATION

5.1. OPTIONAL LIQUID CRYSTAL REMOTE CONTROL (PC-P2HTE)

Model: PC-P2HTE

x Fan speed indicator

It indicates the fan speed you have selected:

- High/Medium/low

Indicador de vantilador Total

It indicates if Total ventilator has been selected.

- A/C only air conditioning

- VENTI only ventilation

- A/C + VENTI if both are selected

y Operation Mode Indicator

Indicates the operation mode selected: Fan, Cool,
Heat, Dry, Auto (Cool/Heat)

z Run indicator (Red Lamp)
{ RUN/STOP switch
| MODE (Operation Mode Selection) Switch
} FAN SPEED (Fan Speed Selection) Switch
~ Up & Down Panel Operation Switch
 VENTI(Ventilator Operation) Switch
 LOUVER (Swing Louver Operation) Switch

 SELECT (time setting) switch

Increase and decreases the set Time for timer
operation

 ON / OFF Timer (Timer Operation) Indicator

Used to activate or deactivate the timer operation

 OK Switch
 RESET (Filter Reset) Switch

After cleaning the air filter, press the “RESET” button.

The FILTER indication will disappear and the next
filter cleaning time will be set.

It also stops the run procedure.

 TEMP (Temperature Setting) Switch
 T.RUN (Test Run Indication)

Check (Check Indication)
These Tests appears when "TEST RUN" or "CHECK"

is being performed

 ABNML (Alarm) Indicator

“FILTER” Indicator

 SET TEMP (Setting Temperature) Indicator
 1234S indicator (setting schedule number)
 Mon Tue ... Sun (Day of the week indicator)

Indicates that central station or CSNET WEB is being

performed

 Swing Louver Indicator

"DEFROST" is indicated

 SERVICE mode indicator. (indicates the change

to special operations)

 Time indicator.
 Time indicator. (indicates the programmed time).

When opening the cover, pull the cover

toward the arrow direction

NOTE:

− In the case that the LOW fan speed is selected and
outdoor temperature is higher than 21°C, excessive
load is given to the compressor at heating operation.
Therefore, set the fan speed at HIGH or MEDIUM,
since safety devices may be activated.

− When the system is started after a shutdown longer
than approximately 3 months, it is recommended that
the system be checked by your service contractor.

− Turn OFF the main switch when the system is stopped
for a long period of time. Otherwise the system
consumes electricity as the oil heater remains active
even though the compressor is stopped.

4

REMOTE CONTROLLER OPERATION

5.1.1. OPERATION PROCEDURE FOR COOLING, HEATING, DRY AND FAN OPERATIONS

 Before Operation

 Supply electrical power to the system for approximately 12 hours before start-up or a long

shutdown. Do not start the system immediately after power supply, it may cause a
compressor failure because the compressor is not heated well.

 Make sure that the outdoor unit is not covered with snow or ice. If covered, remove it by

using hot water (less than 50°C).

 If the water temperature is higher that 50°C, it will cause damage to plastic parts.

´ CAUTION:

1. Turn on the power supply.

Three vertical lines appear on the liquid crystal display A/C or VENTI is indicated on the
liquid crystal display.

2. Press the MODE switch.

By repeatedly pressing the MODE switch, the indication is changed in order of COOL,
HEAT, DRY and FAN (In case of Cooling Only model, COOL, DRY and FAN).
(The figure shows when setting "COOL" mode is selected).

3. Press RUN/STOP Switch.

Then red LED turns ON. The system is automatically started.

NOTE:

Setting of Temperature, Fan Speed and Air Louver Direction
The setting condition is memorized after setting once, therefore the daily setting is not
required. In case that the setting is required to be changed, refer to “operation
procedure for Temperature, Fan Speed and Air Louver Direction Setting”.

4. Switch OFF (STOP)

Press the RUN/STOP switch again. The RUN indicator (Red) is OFF. The system is
automatically stopped.

NOTE:

There could be a case that the fan operation is performed for approximately 2 minutes
after the heating operation is stopped.

5.1.2. OPERATION PROCEDURE FOR TEMPERATURE, FAN SPEED AND AIR LOUVER DIRECTION
SETTING

 DO NOT touch the CHECK switch.

 The CHECK switch is used only when servicing.
 In case that the CHECK switch is pressed by mistake and the operation mode is changed

to the check mode, press the CHECK switch again for approximately 3 seconds, and press
the CHECK switch once again after 10 seconds: the mode will change back to normal.

µ ATTENTION:

 Temperature Setting

 Adjust the temperature by pressing TEMP “:” or “;” switch.
 The temperature is increased by 1º C by pressing switch

: (máx. (max 30 °C).

 The temperature decreases by 1º C by pressing switch

; (min. (min. 19 °C for COOL, DRY

and FAN modes; min. 17 °C for HEAT mode).
(The figure shows when setting 28 °C).

 Setting FAN Speed

 Press the FAN SPEED switch.
 When the FAN SPEED switch is pressed repeatedly, the indication changes in the rotation

of HIGH, MEDIUM and LOW

 For standard operation, set the fan speed at HIGH.
 (The figure shows when setting “MED” speed).

 NOTE:

In case of DRY mode, the fan speed is automatically changed to LOW, and can not be
changed. (However, the indication shows the present setting condition).

REMOTE CONTROLLER OPERATION

5

 Setting of Swing Louver Direction

Press the SWING LOUVER switch: el deflector oscilante inicia su funcionamiento. Press the
SWING LOUVER switch again, the swing louver is fixed. By repeatedly pressing the SWING
LOUVER switch, the swing louver repeats to stop and swing.

 When Fixed

The indication shows the air flow direction.

 When Swinging Automatically

The indications move continuously corresponding to the louver swing.

NOTE:

In the heating operation, the louver angle changes automatically.

5.1.3. OPERATION PROCEDURE FOR VENTILATION

This function is available only when the total heat exchanger is connected.
When the procedures below are performed without the total heat exchanger connected, “NO
FUNCTION” blinks for 5 seconds.

µ ATTENTION:

 Ventilation

Press the VENTI switch
By repeatedly pressing the VENTI switch, the indication is changed in order of A/C, VENTI
and A/C+VENTI. (La figura muestra el estado cuando el ajuste es "A/C + VENTI").

NOTE:

Contact your distributor or dealer of HITACHI for detailed information.
In case that the mode is changed to VENTI during individual operation of the air
conditioner, the air conditioner is stopped.
In case that the mode is changed to A/C during individual operation of the total heat
exchanger, the total heat exchanger is stopped.

5.1.4. OPERATION PROCEDURE FOR AUTOMATIC COOLING / HEATING OPERATION

The automatic cooling/heating operation is required to be set by the optional function. Contact
your distributor or dealer of HITACHI for detailed information.
This function is to change operation mode, cooling or heating automatically according to the
temperature difference between the set temperature and the suction air temperature.
In the case that the suction air temperature is higher than the set temperature by 3 C, the
operation is changed to COOL mode, and lower than the set temperature by 3 C, the
operation is changed to HEAT mode.

NOTE:

In case of heating operation at the LOW fan speed, the operation often stops by the
operation of the protective devices. In this case, set the fan speed to HIGH or MED.
In case that the outdoor temperature is higher than approximately 21 °C, the heating
operation is not available.
The temperature difference between cooling and heating operation is quite big in case
of using this function. Therefore, this function can not be used for the air conditioning of
the room where requires accurate control of temperature and humidity.

6

REMOTE CONTROLLER OPERATION

5.1.5. OPERATION PROCEDURE FOR SWING LOUVER ADJUSTMENT

Setting Swing Louver

1. When the SWING LOUVER switch is pressed, the swing
louver starts its operation. The range of the angle of swing is
approximately 70° from the horizontal to the vertical position.
When mark “

” is moving, it indicates the operation of the

louver continuously.

2. When the swinging operation of the louver is not required,
press the SWING LOUVER switch again. The louver is
stopped at an angle indicated by the direction of the mark
“

”.

3. Discharge air angle is fixed (at 20° for RCI series and 40° for
RCD series) during start-up of heating operation and
defrosting operation when thermostat is ON. When the outlet
air temperature exceeds approximately 30 °C, the louvers
start to swing.

Fixing the louver

1. In the case of cooling and dry operation, discharge air angle
can be changed at 5 positions. In the case of heating
operation, it can be changed at 7 positions

2. To fix the louver position, first press the SWING LOUVER
switch to start the louver swinging, and then press the SWING
LOUVER switch again when the louver reaches the required
position.

3. Discharge air angle is fixed (at 20° for RCI series and 40° for
RCD series) during start-up of heating operation and
defrosting operation when thermostat is ON. When the outlet
air temperature exceeds approxima-tely 30 °C, the swing
louvers activate.

4. When the louvers are fixed at an angle 55° RCI, 65° RCD or
70° both during heating operation and the operation mode is
changed to cooling operation, louvers will be automatically
fixed at an angle 45° RCI, 60° RCD

 NOTE:

There exists a time lag between the actual angle of
the louver and the liquid crystal indication. When the
SWING LOUVER switch is pressed, the louver will
not stop immediately. The louver will move one extra
swing.
If the louvers are moced due to cleaning or for any
reason, setAuto Seting mode to take the four louvers
in the same position.

Do not turn the air louver by hand. If moved, the louver
mechanism will be damaged! (In all units)

´ CAUTION:

Wall Type (RPK):

Adjust the vertical louvers by hand to discharge air in the required
direction.
Do not swing 1 blade at left side and 2 blade at right side of the
vertical deflection.
Automatic Setting of louver
When the unit operation is stopped, two air louvers are stopped at
closing position automatically.

Ceiling Type (RPC):

The vertical deflector consists of four sets of deflectors. Adjust the
vertical louvers by hand to discharge air in the required direction.

 NOTE:

For models without automatic swing louver the above
indications are not available through R.C.S.
The swing Louver should be adjusted by hand in this case.

Horizontal
Deflector

Vertical
louver

Horizontal Deflector

Louver
vertical

One Set

RCD (2-way cassette type)

Indication

Louver angle

(approx.)

Approx.

40°

Approx.

45°

Approx.

50°

Approx.

55°

Approx.

60°

Approx.

65°

Approx.

70°

Cooling Dry

Heating

: :Recomended Angle

Angle range

Angle range

RPK (Wall Type)

Indication

Louver angle

(approx.)

Approx.

35°

Approx.

40°

Approx.

45°

Approx.

50°

Approx.

55°

Approx.

60°

Approx.

70°

Cooling Dry

Louver angle

(approx.)

Approx.

40°

Approx.

45°

Approx.

50°

Approx.

55°

Approx.

60°

Approx.

65°

Approx.

70°

Heating

: :Recomended Angle

Angle range

Angle range

RCI (4-way cassette type)

Indication

Louver angle

(approx.)

Approx.

20°

Approx.

25°

Approx.

30°

Approx.

35°

Approx.

45°

Approx.

55°

Approx.

70°

Cooling Dry

Heating

: :Recomended Angle

Angle range

Angle range

RPC (Ceiling Type)

Indication

Louver angle

(approx.)

Horizontal

Approx.

15°

Approx.

30°

Approx.

40°

Approx.

50°

Approx.

60°

Approx.

80°

Cooling Dry

Heating

: :Recomended Angle

Angle range

Angle range

REMOTE CONTROLLER OPERATION

7

5.1.6. TIMER OPERATION PROCEDURE

 Setting current day and time

1. Hold down the SELECT(Ï) DAY switch for more than 3 seconds to change to current day

setting mode. SET is indicated and the day blinks. All the days except the current day are
indicated.

2. Press SELECT(Ï) DAY/SCHEDULE switch until the actual day flickers, then press OK switch.

Selected day is indicated and “time” flickers.

3. Press the SELECT(Ï) DAY switch to adjust the “hour” setting, and then press again. “Hour” is

indicated and “minutes” flickers.

4. Press SELECT(ÎÏ) DAY/SCHEDULE switch to adjust “minutes”, and when adjusted press

OK switch. The current time setting mode ends and returns to normal mode. “Minutes” is
indicated and SET is lighted off. “Seconds” starts from zero.

 Setting the timer (programming)

1. Press the TIMER switch. SET and SCHEDULE are indicated. Schedule Number “1” flickers and
other numbers are indicated.

2. When the schedule switch is pressed Î, , the schedule number moves

[1]ĺ[2]ĺ[3]ĺ[4]ĺ[S]ĺ[1]….

- Select [S] to set the ON/OFF time and temperature shifts.

- *By pressing TIMER switch, SET and SCHEDULE are lighted off and changed to normal mode.

3. When the OK switch is pressed, the selected schedule number is indicated. Other schedule
number are lighted off, and “Hour” of ON time for the selected schedule Number flickers.

4. Press the SELECT(ÎÏ) DAY/SCHEDULE to adjust the “minutes” setting, and then press

again. “Hour” is indicated and “minutes” flickers.

5. Press the SELECT(ÎÏ) DAY/SCHEDULE switch to adjust the “minutes” setting, and then

press again. “Minutes” is indicated and “hour” of OFF time flickers.

6. Set the OFF time the same way as the ON time. After setting “minutes”, OFF time is indicated.
If the schedule number [1][2][3][4] is selected, the indication changes to set the schedule
number shown in 2. If [S] is selected, see the section on setting temperature shifts for details.

7. When the (ÎÏ) DAY/SCHEDULE switch is pressed, the SET and SCHEDULE indicators go

out and the mode returns to normal.

8

REMOTE CONTROLLER OPERATION

 Defining the schedule to be applied

1. Hold down the (ÎÏ) DAY/SCHEDULE switch for more than 3 seconds and the SET

indicator appears. All the days and schedule numbers are indicated.

2.Press (ÎÏ) DAY/SCHEDULE switch until the day to be set flickers.

By pressing it, the day flickers
[Mon]ĺ[Tue] ĺ… ĺ [Sun]ĺ[Mon~Sun]ĺ[Mon~Fri]ĺ[Sat, Sun] ĺ [Mon]…
In case of flickering various days, the same setting is applied to the days.

3. Press the (Î) DAY switch until the schedule number you wish to set blinks.

4. Press the (Ï) SCHEDULE switch, and the SCHEDULE indication appears. Then the

schedule number indicated in step 3 is applied to the days set in step 2. Press the OK
switch to activate or deactivate the schedule. If the schedule is activated, the word
SCHEDULE is lit up.

5. Press the TIMER switch and the SET indicator goes out, and the mode returns to normal.

 Cancelling the timer

In normal mode, press (ÎÏ) DAY/SCHEDULE switch simultaneously more than 3 seconds.

The NEXT SCHEDULE indicator blinks. (Cancellation of all the timer)

During the TIMER cancellation mode, press (ÎÏ) DAY/SCHEDULE switch simultaneously

more than 3 seconds. NEXT SCHEDULE is indicated. (Timer activation)

 Setting the temperature shifts (energy saving mode)

1. Perform the ON/OFF time setting operation of sub-chapter point 1 and 2, and then select
“S” as a schedule number

2. Set the ON/OFF operation in steps 4,5 and 6 of the “Setting the timer” section, and set the
ON/OFF time. The temperature setting is then indicated.

3. Select the temperature to shift by :; switches. “3” or “5” can be selected. In this time, if
reset switch is pressed, shift temperature is not performed indicating “- -“. When the TIMER
switch is pressed, the temperature is indicated and the mode changes to schedule number
selection.

4. When the TIMER switch is pressed, the SET and SCHEDULE indicators go out and the
mode returns to normal.

 NOTE:

1. When this operation is performed, the temperature shift indicator changes.

2. When this operation is performed, the temperature setting of the CSNET WEB or PSC-5S has a normal range, while
the remote control setting may be changed to a new range.

3. The increase or decrease in the temperature setting during the scheduled time (±3 ºC or ±5 ºC) varies according to the
operation mode.

- If the system is operating in FAN, COOL or DRY mode, the temperature variation is + .

- If the system is operating in HEAT, mode, the temperature variation is - .

REMOTE CONTROLLER OPERATION

9

 Automatic operation with heating (anti-freeze protection)

1. In normal mode, hold down the switch for more than 3 seconds to change the operation
mode. The automatic heating setting is activated and the ON indicator appears to the right
of the current time. The ON indication blinks during the automatic heating operation.

-Cancellation

While the system is operating in the automatic heating mode, hold down the MODE switch for
more than 3 seconds to change back to normal mode.
The automatic heating setting is deactivated, and the ON indication to the right of the current
time goes out.

 NOTE:

If room temperature is below a certain temperature

1

*, heating is operateed actumatically. In case of heating automatic
operation, when room temperature reaches to setting temperature, operation is stopped.
(*1) The temperatures (5,10,or 15ºC) can be selected using an optional setting.



Operation locking method

To prevent incorrect use of the switches, the switch operation * can be locked.

1. In normal mode, hold down the SELECT ÎÏ switch for more than 3 seconds. The

operation lock is activated and the OPER.LOCK indication appears. If a switch is pressed
while it is locked, the indication OPER. LOCK blinks.

-Cancellation

While operation lock is valid, press ÎÏ SELECT switch simultaneously more than 3 sec in

normal mode. The locking operation will be cancelled and the OPER. LOCK lights off.

 NOTE:

*Switch to be invalid can be selected from “operation mode change”, “temperature adjustment”, “airflow” and “autolouver”
by optional setting (F8~Fb) up to 4 items.

The setting can be changed from CSNET WEB or the sub-remote controller.

5.1.7. INDICATION WHEN IN NORMAL CONDITION

 Thermo-controller

When the thermo-controller is operated, the fan speed changes to LOW, and the indication
remains unchanged.
(Only in heating mode)

 Defrost

When the defrost operation is performed, ”DEFROST” indication is ON.
The indoor fan is slowed down and stopped.
The louver is fixed at the horizontal position. However, the LCD indication is still activated.
(The figure shows when setting "DEFROST" is ON).

When the unit is stopped during defrost operation, the RUN indicator (Red) is OFF.
However, the operation continues with ”DEFROST” indication, and the unit is stopped after
the defrost operation is finished.

 Filter

Filter Clogging: FILTER indication is ON when the filter is clogged with dust, etc. Clean up
the filter. Press the RESET switch after cleaning up the filter. The “FILTER” indication is
OFF.

10

REMOTE CONTROLLER OPERATION

5.1.8. INDICATIONS IN ABNORMAL CONDITION

 Abnormal

The RUN indicator(Red) blinks.
”ALARM” is indicated on the liquid crystal display.
The indoor unit number, the alarm code, the model code and the connected
number of indoor units are indicated on the liquid crystal display.
In the case that the plural indoor units are connected, the above items for each
indoor unit are indicated one by one.
Check the contents of the indications and contact your distributor or dealer of
HITACHI.



Power Failure

All the indications are OFF.
Once the unit is stopped by power failure, the unit will not be started again
although the power recovers. Perform the starting procedures again.
In case of instantaneous power failure within 2 seconds, the unit will be started
again automatically.



Electric noise

There could be a case that all the indications are OFF and the unit is stopped.
This occurred by activation of the micro computer for the unit protection from
the electric noise.

 NOTE:

In case of using the wireless remote control switch for the wall type indoor
unit, remove the connectors (CN25) connected to the indoor PCB. If they are
not removed, the unit will not operate.
The memorized date can not be erased unless the remote control switch is
initialized.

Indoor Unit Number

A

larm Code

Connected No. of Indoor Units

Model code

Indicated for a

second alternately

Model code

Indication Model



Heat pump

"

Inverter



Multi



Only cooling



Others

A

larm Code

AUTOMATIC CONTROLS

11

6. AUTOMATIC CONTROLS

The system is equipped with the following functions.



THREE MINUTE GUARD

The compressor remains off for at least 3 minutes once
it has stopped. If the system is started within
approximately 3 minutes after it has stopped, the RUN
indicator is activated. However, the cooling operation or
the heating operation remains off and does not start
until after 3 minutes has elapsed.



FROST PREVENTION DURING COOLING

OPERATION

When the system is operated in a low temperature
room, the cooling operation may be changed to fan
operation for a while to avoid frost formation on the
indoor heat exchanger.



AUTOMATIC RESTART AFTER POWER

FAILURE

If the power supply is interrupted for short periods of
time (up to 2 seconds) the Remote Control switch will
retain the settings and the unit will restart when the
power is restored.
If Automatic Restart is required after periods of lost
power supply in excess of 2 seconds please contact
your distributor (optional function).



SLOW AIR CONTROL DURING HEATING

OPERATION

When the compressor is stopped while the thermostat
is OFF, or the system is performing the automatic
defrosting operation, the fan speed is set at the slow
position.

 AUTOMATIC DEFROSTING CYCLE

When the heating operation is stopped by pressing
RUN/STOP switch, frosting on the outdoor unit is
checked and the defrosting operation may be
performed for the maximum of 10 minutes.



PREVENTION OF OVERLOAD OPERATION

When the outdoor temperature is too high during
heating operation, heating operation is stopped due to
activation of the outdoor thermistor until the
temperature becomes low.



HOT START DURING HEATING OPERATION

To prevent cold air discharge, the fan speed is
controlled from the slow position to the set position
according to the discharge air temperature. At this time
the lover is fixes horizontally.

7. BASIC TROUBLESHOOTING

 CAUTION:

When water leakage from the indoor unit occurs, stop
the operation and contact your contractor
When you smell or white smoke occurs from the unit,
stop the system and contact your contractor.

 THIS IS NOT ABNORMAL

 Sound from deforming Part

During system starting or stopping, and abrading sound
might be heard. However, this is due to thermal
deformation of plastic parts. It is not abnormal.

 Refrigerant Flow Sound

While the system is being started or stopping, sound
from the refrigerant flow may be heard.

 Smells from Indoor Unit

Smell adheres on indoor unit after a long period of time.
Clean the air filter and panels or make a good
ventilation.

 Steam from Outdoor Heat Exchanger

During defrosting operation, ice on the outdoor heat
exchanger is melted, resulting in making steam.

 Dew on Air Panel

When the cooling operation continues for a long period
of time under high humidity conditions (higher than 27°C
DB/80% R.H.), dew can form on the air panel.

 Dew on Cabinet

When the cooling operation continues for a long period
of timer (higher than 27°C DB/80% R.H.), dew can form
on the cabinet.

 Sound for the indoor unit heat exchanger

During the cooling opertaion, a sound may be heard
from the indoor unit heat exchanger due to water
freezing or melting.



NO OPERATION

Check whether the SET TEMPERATURE is set at the
correct temperature.

 NOT COOLING WELL OR HEATING WELL

 Check for obstruction of air flow of the outside or inside

units.

 Check if too much heat source exists in the room.
 Check if the air filter is clogged with dust.
 Check to see if the doors or windows are opened or not.
 Check if the temperature condition is not within the

operating range.



ABNORMAL SWING LOUVER’S POSISTION

 Check if the four louver’s position at the air outlet are in

same position.



IF TROUBLE STILL REMAINS...

If the trouble still remains even after checking the above
items, contact your service contractor and inform the
following data:

- Unit Model Name

- Content of Trouble

- Alarm Code no. on Liquid Crystal Display

 NOTE:

Except for a long period of shutdown, keep the main
switch ON, since the oil heater is energised when the
compressor is stopped.

12

NAME OF PARTS

PART II-INSTALLATION

8. NAME OF PARTS

Name of parts. If do you want more information check the technical catalogue.



RAS - DC INVERTER OUTDOOR UNIT (2/2.5HVRN1)

No. Part Name

1 Compressor
2 Accumulator
3 Heat Exchanger
4Fan
5 Fan Motor
6 Strainer
7 Distributor
8 Reversing Valve

9 Expansion Valve
10 Stop Valve for Gas Line
11 Stop Valve for Liquid Line

12

Check joint for High/Low Pressure

(Cool/Heat)
13 Control Box
14 High Pressure Switch for Protection
15 Pressure Switch for Control
16 Oil Heater
17 Vibration Isolation Rubber
18 Air Oulet
19 Air Inlet

REFRIGERANT CYCLE

13

9. REFRIGERANT CYCLE

EXAMPLE:

No. Part Name No. Part Name

1 Compressor 9 High Pressure Switch for Protection
2 Heat Exchanger 10 Pressure Switch for Control
3 Accumulator 11 Stop Valve for Gas Line
4 Expansion Valve 12 Stop Valve for Liquid Line
5 Reversing Valve 13 Discharge Thermistor
6 Strainer 1/4 14 Pipe Thermistor
7 Distributor 15 Ambient Thermistor
8 Check Joint

10. UNITS INSTALLATION

10.1. OUTDOOR UNITS INSTALLATION

 CAUTION:

Transport the products as close to the installation
location as practical before unpacking.

Do not put any material on the products.
Apply four lifting wires on to the outdoor, when lifting

it by crane

µ WARNING:

Install the outdoor unit with sufficient clearance
around it for operation and maintenance as shown in
the next figures.

Install the outdoor unit where good ventilation is
available

Do not install the outdoor unit where is a high level of
oil mist, salty air or sulphurous atmosphere.

Install the outdoor unit as far as practical (being at
least 3 meters) from electromagnetic wave radiator
(such as medical equipment).

Keep clearance between the units of more than
50mm, and avoid obstacles that may hamper air
intake, when installing more than one units together.

Install the outdoor unit in the shade or not exposed to
direct sunshine or direct radiation from high
temperature heat source.

Do not install the Outdoor Unit in a space where a
seasonal wind directly blows to the Outdoor fan.

 CAUTION:

Check to ensure that the foundation is flat, level and
sufficiently strong.

Install the unit in a restricted area not accessible by
the general public

Aluminum fins have very sharp edges. Pay attention
to the fins to avoid injury.

Refrigerant Flow Direction (Cooling)
Refrigerant Flow Direction (Heating)
Field Refrigerant Piping

Flare Connection
Brazing Connection

14

UNITS INSTALLATION

10.2. INSTALLATION SPACE

 RAS-2~2.5 HVRN1

(mm)

a) In case of front side and either of the sides are open (single unit) b) In case that surrounding wall exist (single unit)

c) In case that upper side obstacles exist (single unit)

d) In case that upper side obstacles exist (serial units)

e) In case of front side and either of the sides are open (serial units)

f) In case that surrounding wall exist (serial units)

g) Horizontal (multiple units) h) Vertical (multiple units)

- Do not stack more than two units in height

- Close gap (*) to avoid recirculating discharge air flow

*

*

0 < L ≤ 1/2H → A ≥ 1000
1/2H < L ≤ H → A ≥ 350

0 < L ≤ 1/2H → A ≥ 600
1/2H < L ≤ H → A ≥ 1200

0 < L ≤ 1/2H → A ≥ 1000
1/2H < L ≤ H → A ≥ 350

0 < L ≤ 1/2H → A ≥ 200
1/2H < L ≤ H → A ≥ 350

0 < L ≤ 1/2H → A ≥ 600
1/2H < L ≤ H → A ≥ 1200

0 < L ≤ 1/2H → A ≥ 200
1/2H < L ≤ H → A ≥ 350

UNITS INSTALLATION

15

10.3. INSTALLATION PLACE PROVISION

1. Secure the outdoor unit with the anchor

Fix the outdoor unit to the anchor bolts by special washer
of factory-supplied accessory.

2. When installing the outdoor unit, fix the unit by anchor
bolts.
Regarding the location of fixing holes.

3. Example of fixing outdoor unit by anchor bolts.

4. Provide an adequate drainage around the foundation.
When installing the unit on a roof or a veranda, drain
water may turn to ice in a cold morning.
Therefore, avoid draining in an area where people
often use because it is slippery. In case of installing
such a place, provide the additional drainage around
the foundation.

5. The whole of the base of the outdoor unit should be
installed on a foundation. When using vibration-proof
mat, it should also be positioned the same way.
When installing the outdoor unit on a fieldsupplied
frame, use metal plates to adjust the frame width for
stable installation as shown in Figure.

INCORRECT

CORRECT

Recommended Metal Plate Size (Field-Supplied)

- Material: Hot-Rolled Mild Steel Plate (SPHC)

- Plate Thickness: 4.5T

Base of
outdoor unit

Nut

Special washer
(M12)

A

nchor bolts

Filled mortar

Concrete

Max. 17 mm

Pipe cover

Front side

M10 Hole for anchor bolt (Ø12)

Max. 17 mm

(After cut “A”)

Cut this portion when this
type of anchor bolt is used.
If not, it is dificult to remove

the service cover

ConcreteAnchor bolt

60mm
Frame widh
(Field supplied)

Frame

Outdoor unit is

unstable

57mm
Base width of outdoor unit

Outdoor unit is

stable

57mm
Base width of outdoor unit

Frame

100mm or more
Metal plate

Metal plate

Drain hole (30x80)

Front side

Drain hole (3-30x80)

16

11. REFRIGERANT PIPING & REFRIGERANT CHARGE

´ CAUTION:

- Use refrigerant R410A in the refrigerant cycle. Do not
charge oxygen, acetylene or other flammable and
poisonous gases into the refrigerant cycle when
performing a leakage test or an air-tight test.

- These types of gases are extremely dangerous and
can cause an explosion. It is recommended that
compressed air, nitrogen or refrigerant be used for
these types of tests.

- Check to ensure that no pressure exists inside the
stop valve before removing the flange.



Evacuation and Refrigerant Charge

Evacuation and refrigerant charging procedure should
be performed according to the following instructions.
The stop valve has been closed before shipment.
However, make sure that the stop valves are closed
completely.
Connect the indoor unit and the outdoor unit with field­supplied refrigerant piping.
Connect the gauge manifold using charging hoses with
a vacuum pump or a nitrogen cylinder to the check joints
of the liquid line and the gas line stop valve.
Check for any gas leakage at the flare nut connection,
by using nitrogen gas to increase the pressure at

4.15MPa for HVRN1 outdoor units inside of the field­supplied piping.
Operate the vacuum pump for 1 to 2 hours until the
pressure decreases lower than a pressure of 756 mmHg
in vacuum.
For charging refrigerant, connect the gauge manifold
using charging hoses with a refrigerant charging cylinder
to the check joint of the liquid line stop valve.
Charge the proper quantity of refrigerant according to
the piping length (Calculate the quantity of the
refrigerant charge).
Fully open the gas line stop valve, and slightly open the
liquid line stop valve.
Charge refrigerant by opening the gauge manifold valve.
Charge the required refrigerant within the difference
range of ±0.5kg by operating the system in cooling.
Fully open the liquid line stop valve after completing
refrigerant charge.
Continue cooling operation for more than 10 minutes to
circulate the refrigerant.
Remove the “close” plate from the stop valve and hook
the attached “Open” plate at the stop valve.

Example of Evacuation and Refrigerant Charge for HVRN1

 NOTE:

- Charge the refrigerant correctly after calculation.
Overcharge and insufficient charge of the refrigerant
may cause the compressor failure. Insulate the liquid
pipe for prevention of the capacity decrease
according to the ambient air conditions and the
dewing on the pipe surface by the low pressure.

- Check to ensure that there is no gas leakage. When
large amount of the refrigerant leaks, the troubles as
follows may occur:

- Oxygen deficiency

- Generation of Harmful gas Due to Chemical

Reaction with fire.

- Use thick gloves to protect your hands from liquid
refrigerant injuries when handling refrigerant.

 CAUTION:

Check for refrigerant leakage in detail. If a large
refrigerant leakage occurs, it will cause difficulty with
breathing or harmful gases would occur if a fire was
being used in the room. An excess or a shortage of
refrigerant is the main cause of trouble to the units.
Charge the correct refrigerant quantity.

Liquid stop valve

Manifold

gauge

Gas line

Gas Stop valve

Outdoor unit

Nitrogen tank

Liquid line

(For Air Tight Test & Nitrogen
blow during brazing)

Vacuum

cylinder

REFRIGERANT PIPING & REFRIGERANT CHARGE

17

11.1. REFRIGERANT PIPING WORK

11.1.1. PIPING MATERIALS

1. Prepare locally-supplied copper pipes.

2. Select the piping size with the correct thickness and
correct material which can have sufficient pressure
strength.

3. Select clean copper pipes. Make sure there is no dust
and moisture inside. Blow the inside of the pipes with
oxygen free nitrogen to remove any dust and foreign
materials before connecting pipes.

4. After connecting the refrigerant piping, seal the open
space between Knockout hole and refrigerant pipes
by using insulation material as shown bellow:

 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 all copper piping is clean and dry
internally.

There is no refrigerant in the cycle of the indoor unit.

 CAUTION:

Cap the end of the pipe when pipe is to be inserted
through a 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 fitting to prevent
moisture and particle contamination.

Do not use insulation material that contains NH3
because it can damage cooper pipe material and can
be a source of future leakage.

Completely insulate both refrigerant gas piping and
liquid piping between the indoor unit(s) and the
outdoor unit.

If not insulated, dew will ocur on the piping surface

11.1.2. SUSPENSION OF REFRIGERANT PIPING

Suspend the refrigerant piping at certain points and prevent
the refrigerant piping from touching the weak part of the
building such as wall, ceiling, etc…
(If touched, abnormal sound may occur due to the vibration
of the piping. Pay special attention in case of short piping
length).

1~15m

Fire-Proof
Section
Treatment

Indoor Unit

Do not fix the refrigerant piping directly with the metal
fittings (The refrigerant piping may expand and contract).
Some examples for suspension method are shown below.

For Suspending Heavies

For Piping

Along The Wall

For Instant
Installation

Work

 Insulate Pipes

After connecting the refrigerant piping, seal the refrigerant
pipes by using the field-supplied insulation material.
Insulate the unions and flare-nuts at the piping connections
completely. Insulate the liquid piping and gas piping
completely to avoid decreasing of performance and dewing
on the surface of the pipe.

Caution on Refrigerant Leakage

Specifiers/installers have responsibility to follow local codes
and regulation which specify safety requirements against
refrigerant leakage

Maximum Permissible Concentration of HCFC/HFC Gas

The refrigerant R410A, charged in the HVRN1 system, is
an incombustible and non-toxic gas. However, if leakage
occurs and gas fills a room, it may cause suffocation.
The maximum permissible concentration of HCFC/HFC
gas, R410A in air is 0.44 kg/m³, according to EN378-1
Therefore, some effective measure must be taken to lower
the R410A concentration in air below 0.44 kg/m³, in case of
leakage.

Insulation material

Field-Supplied

Insulation material

Insulation material

Unit

Side

18

REFRIGERANT PIPING & REFRIGERANT CHARGE

Calculation of Refrigerant Concentration

1. Calculate the total quantity of refrigerant R (kg) charged
in the system connecting all the indoor units of rooms to
be air-conditioned.

2. Calculate the room Volume V (m³) of each room.

3. Calculate the refrigerant concentration C (kg/m³) of the
room according to the following equation:

R R: Total Quantity of Charged Refrigerant (kg)

≤ C

V: Room Volume (m³)

V C: Refrigerant Concentration 0.44 kg/m³ for R410A

Countermesure for Refrigerant Leakage According to
KHK Standard

1. Provide a shutterless opening which allow fresh air to
circulate into the room.

2. Provide a doorless opening of 0.15% or more size to the
floor area.

3. Pay a special attention to the place, such as a
basement, etc., where refrigerant can stay, since
refrigerant is heavier than air.

11.1.3. PIPING CONNECTION FOR OUTDOOR

UNIT

1. After install the piping at the rear side, arrange the
piping according to the installation position.

2. Attach the pipe cover to avoid entering rain water into
the unit.

3. Use a pipe bender for pipe bending work when
connecting pipes.

11.1.4. TIGHTENING

Tightening work on the flare nut

Rear side
piping

Pipe cover

Stop valve

Connecting
piping

Direction to remove
Pipe Cover

Do not work with
two spanners
here.
Refrigerant
leakage shall
occur

Use two spanners
her for pipe
connection

REFRIGERANT PIPING & REFRIGERANT CHARGE

19

Operation of stop valve should be performed according to the figure below:

 CAUTION:

Do not apply force to the spindle valve at the end of
opening (5 N.m or smaller. The back seat
construction is not provided.

At the test run, fully open the spindle. If not fully
opened, the devices will be damaged.

11.2. REFRIGERANT PIPING LENGTH

The refrigerant piping between the indoor unit and the
outdoor unit should be designed using the beside chart.

Keep the design point within the dark area of the chart,
which is showing the applicable height difference according
to piping length.
In case that a piping length is shorter than 5 meters,
contact the Hitachi dealer.

 Piping Length specification:

RAS-2/2.5HVRN1

Height

difference

(m)

Total length between

Outdoor Unit and

each Indoor Unit

L(m)

When the Outdoor
unit is installed
heigher than
Indoor Unit

When the Outdoor
unit is installed
lower than Indoor
Unit

Stop valve
(Liquid)

Stop valve
(Gas)

Check joint
(Only charging hose can be
connected)
Tighten the cap with 16 N.m
torque.

Spindle valve
Tighten the spindle with 8 N.m torque

Counterclockwise…. Open
Clockwise …. Close

Closed before shipment

Ref. pressure

Refrigerant piping

Hexagonal Wrench
(field supplied
Size: 4 mm)

Cap
Tighten the cap with a torque
below.
(Attach this after work)
Gas Valve: 49 N.m
Liquid Valve: 37 N.m

20

REFRIGERANT PIPING & REFRIGERANT CHARGE

 The possible combination between Outdoor Unit and Indoor Unit are the following:

Single System

 NOTE:

L are the Length indicated in the chart.

Units Mark

Maximum Piping Length

RAS-2/2.5HVRN1 L

Actual piping length  50m
Equivalent piping length  70m

11.2.1. REFRIGERANT PIPING SELECTION

 Piping connection size of Outdoor Unit and, Indoor Unit

Pipe Size

Outdoor Unit

Gas Pipe Liquid Pipe

2.0~2.5 HP

∅12.70 (1/2) ∅6.35 (1/4)

Indoor Unit Gas piping Size Liquid piping Size

2.0 HP

∅15.88 (5/8) ∅6.35 (1/4)

2.5 HP

∅15.88 (5/8) ∅9.53 (3/8)

11.2.2. CONNECTING FLARE ADAPTER

The piping sizes for indoor unit and outdoor unit are
different. Attach the flare adapter (accessories) at the
indoor piping union part.
Use the adequate flare adapter as follows:

Flare adapter

Indoor unit

Gas pipe Liquid pipe

2.0 HP

Big size

(

∅

15.88=∅12.70)

-

2.5 HP

Big size

(

∅

15.88=∅12.70)

Small size

(∅9.53=∅6.35)

11.3. TIGHTENING FLARE NUTS

The required tightening torque is as follows:

Pipe Size Tightening Torque (Nm)

Ø 6.35 mm 20
Ø 9.53 mm 40
Ø 12.70 mm 60
Ø 15.88 mm 80

Gas line

Flare adapter
(accessories)

Indoor unit

Liquid line

Pipe
(Field
supplied)

Flare Nut
(accessories)

Pipe
(Accessories)

REFRIGERANT PIPING & REFRIGERANT CHARGE

21

11.4. BRAZING WORK

µ ATTENTION:

Use nitrogen gas for blowing during pipe brazing. If
oxygen, acetylene or fluorocarbon gas is used, it will
cause an explosion or poisonous gas.
A lot of oxidation film will occur inside of tubes if no
nitrogen gas blowing is performed during brazing
work. This film will be flecked off after operation and
will circulate in the cycle, resulting in clogged
expansion valves, etc. This will cause bad influence
to the compressor.

Use a reducer valve when nitrogen gas blowing is
performed during brazing. The gas pressure should
be maintained within 0.03 to 0.05Mpa. If a
excessively high pressure is applied to a pipe, it will
cause an explosion.

11.5. REFRIGERANT CHARGE

 CAUTION:

Do not charge OXYGEN, ACETYLENE, or other
flammable and poisonous gases into the refrigerant
because an explosion can occur. It is recommended
that oxygen free nitrogen be charged for these types
of tests cycle when performing a leakage test or an
airtight test. These types of gases are extremely
dangerous,
Insulate the unions and flare-nuts at the piping
connection part completely.
Insulate the liquid piping completely to avoid a
decrease of performance; if not, it will cause sweating
on the surface of the pipe.
Charge refrigerant correctly. Overcharging or
insufficient charging could cause a compressor
failure.

Check for refrigerant leakage in detail. If a large
refrigerant leakage occurred, it would cause difficulty
with breathing or harmful gases would occur if a fire
were being used in the room.
If the flare nut mut is tigthened too hard, the flare nut
may crack after a long time and cause refrigerant
leakage.

11.6. REFRIGERANT CHARGING QUANTITY

Outdoor Units has been charged with refrigerant for 30m of
actual piping length. An additional refrigerant charged is
required in systems with actual piping length longer than
30m.

1. Determine an additional refrigerant quantity according to
the following procedure, and charge it into the system.

2. Record the additional refrigerant quantity to facilitate
service activities thereafter.

 CAUTION:

When charging refrigerant accurately measure
refrigerant to be charged.
Overcharging or undercharging of refrigerant ca

n

cause compressor trouble
In case of actual piping length less than 5 m, consul

t

your distributor.

 Outdoor unit Factory Refrigerant charge (Wo Kg) is the next:

O/U MODEL Wo (Kg)

RAS-2HVRN1 1.6

RAS-2.5HVRN1 1.6

 Additional Refrigerant Charge Calculation for liquid piping (W1 Kg). See next table

(kg/m)

Actual Piping Length: L(m)

Model

30<L≤50

RAS-2HVRN1 W1= (L-30) X 0.03

RAS-2.5HVRN1 W1= (L-30) X 0.03

Outdoor unit

Indoor unit

22

DRAIN PIPING

12. DRAIN PIPING

12.1. DRAIN DISCHARGING BOSS

When the base of the outdoor unit is temporarily utilized as
a drain receiver and the drain water in it is discharged, this
drain boss is utilized to connect the drain piping.

Model Applicable Model

DBS-12L RAS-HVRN1

 Connecting procedure

1. Insert the rubber cap into the drain boss up to the

extruded portions

2. Insert the boss into the unit base and turn

approximately 40 degree counterclockwise.

3. Size of the drain boss is 32 mm (O.D.)

4. A drain pipe should be field-supplied

 NOTE:

Do not use this drain boss set in a cold area, because
the drain water may freeze.

This drain boss is not sufficient to collect all the drain
water. If collecting drain water is completely required,
provide a drain-pan that is bigger than the unit base
and install it under the unit with drainage.

13. ELECTRICAL WIRING

13.1. GENERAL CHECK

1. Ensure that the field-supplied electrical components
(mains power switches, circuit breakers, wires,
connectors and wire terminals) have been properly
selected according to the electrical data indicated. Make
sure that they comply with national and regional
electrical codes.

2 Following the Council Directive 89/336/EEC and its

amendments 92/31/EEC and 93/68/EEC, relating to
electromagnetic compatibility, next table indicates
maximum permissible system impedance Z

max

at the
interface point of the user’s supply, in accordance with
EN61000-3-11

MODEL

Zmax (Ω)

RAS-2HVRN1 0.58
RAS-2.5HVRN1 0.47

3. Check to ensure that the power supply voltage is within
+/-10% of the rated voltage.

4. Check to ensure that power supply has an impedance
low enough to warranty not reduce the starting voltage
more than 85% of the rated voltage.

5. Check to ensure that the ground wire is connected.

6. Connect a fuse of specified capacity.

µ WARNING:

Check to ensure that screws for terminal block are
tightly tightened.

 CAUTION:

Check to ensure that the indoor fan and the outdoor
fan have stopped before electrical wiring work or
periodical check is performed.

Protect the wires, drain pipe, electrical parts, from
rats or other small animals. If not protected, rats may
damage unprotected parts, and at the worst, a fire will
occur.

Wrap the accessory packing around the wires, and
plug the wiring connection hole with the seal material
to protect the product from any condensed water and
insects.

Tightly secure the wires with the cord clamp inside
the indoor unit.

Lead the wires through the knockout hole in the side
cover when using conduit.

Secure the cable of the remote control switch with the
cord clamp inside the electrical box.

Electrical wiring must comply with national and local
codes. Contact your local authority in regards to
standards, rules, regulations, etc.

Check that the ground wire is securely connected.
Connect a fuse of specified capacity.

¶ DANGER:

Do not connect of adjust any wiring or connections
unless the main power switch is OFF.

Check that the earth wire is securely connected,
tagged and locked in accordance with national and
local codes.

 NOTE:

Check and test to ensure that if there is more than
one source of power supply, that all are turned OFF.

Push

Drain Pipe

Rubber Cap

Drain Hole

Drain Hole

Rubber Cap

Push

Rubber Cap

100 mm

≥ O.D.Ø16 mm

ELECTRICAL WIRING

23

13.2. ELECTRICAL WIRING CONNECTION FOR OUTDOOR UNITS

 The electrical wiring connection for the outdoor unit is

shown in figure below:

RAS-2/2.5

HVRN1

L1

L2

N

12

{{{{

Power Supply

AC 230 V

Control cable (5V)

 Instructions for wiring and electrical Board

13.2.1. SETTING OF DIP SWITCHES FOR OUTDOOR UNIT

 Quantity and Position of DIP Switches

The PCB in the Outdoor Unit is operating with 7 types of DIP
Switches, and 4 Push Switch. The location is as follows:

 DSW301: Test Run Mode

Setting before shipment

ON

1 2 3 4 5 6

 DSW1: (No setting is required)

When set Nº1 pin to ON, the
electric current detection is
cancelled. Nº1 pin should be set
back to OFF after electrical work.

ON

1 2 3

 DSW2: Pipe length setting (setting is required)

Setting before shipment

ON

1 2 3 4 5 6

Pipe legth (≤5m)

ON

1 2 3 4 5 6

Pipe Length (≥30m)

Pipe length setting should be
performed as follows according to
the on-site pipe length.

ON

1 2 3 4 5 6

 DSW3: Capacity Setting (No setting is required)

Model RAS-2HVRN1

Setting Position

ON

1 2 3 4 5 6

Model RAS-2.5 HVRN1

Setting Position

ON

1 2 3 4 5 6

PCB

Earth terminal

Side cover

Transmission
wires

Power wires

24

ELECTRICAL WIRING

 DSW4: Refrigerant Cycle No. Setting (Setting is

required)

Setting for the ten digit

ON

1 2 3 4 5 6

 DSW5: End Terminal Resistance (No setting is

required)

Setting before shipment

ON

1 2

 DSW6: Function setting (No setting is required)

Setting before shipment

ON

1 2

 RSW1: Ref. Cycle No. Setting (Setting is required)

Setting position.
Set by inserting slotted screwdriver
into the groove (Setting for the last
digit)

13.3. COMMON WIRING

 CAUTION:

All the field wiring and electrical components must comply with local codes.

13.3.1. ELECTRICAL WIRING BETWEEN INDOOR UNIT AND OUTDOOR UNIT

- Connect the electrical wires between the indoor unit and

the outdoor unit, as shown below.

- Follow local codes and regulations when performing

electrical wiring.

- If the refrigerant piping and the control wiring are

connected to the units in the same refrigerant cycle.

- Use twist pair wire (more than 0.75 mm²) for operation

wiring between outdoor unit and indoor unit.

- Use 2-core wire for the operating line (Do not use wire

with more than 3 cores).

- Use shielded wires for intermediate wiring to

protect the units from noise obstacle at length of
less than 300 m and size complied with local code.

- The recommended breaker sizes are shown in

Table of electrical data and recommended Wiring,
Breaker Size/1 O.U.

- In the case that a conduit tube for field-wiring is not

used, fix rubber bushes with adhesive on the panel.

- All the field wiring and equipment must comply with

local and international codes.

µ ATTENTION:

Pay attention to the connection of the operating line.
Incorrect connection may cause the failure of PCB.

RAS-2/2.5HVRN1

: Terminal Board
: Circuit Breaker
: Earthleakage Breaker
: Field Wiring
: Field Wiring
: Field-Supplied
: Optional Accessory

No.0 System
Outdoor Unit

No.0 System
Outdoor Unit

Indoor Unit

CB

ELB

Remote
Control
Switch

Operating Line (Twisted
Shielded Pair Cable or
Shielded Pair Cable)
DC5V (Non-Pole Transmission,
H-LINK System)

(Max. 1 Unit per Refrigerant Cycle)

Indoor Unit

Remote
Control
Switch

Operating Line
(Twisted Shielded
Pair Cable or
Shielded Pair Cable)
DC5V (Non-Pole
Transmission,
H-LINK System)

CB

ELB

(Max. 1 Unit per Refrigerant Cycle)

ELECTRICAL WIRING

25

13.3.2. WIRE SIZE

 Recomended minimum sizes for field provided wires:

Power Source Cable Size Transmitting Cable Size

Model Power Source Max. Current

EN60 335-1

x

MLFC

y

EN60 335-1

x

MLFC

y

All Indoor Units

230V/1φ/50Hz

5 A 0.75 mm² 0.5 mm²
RAS-2HVRN1 16 A 1.5 mm² 0.75 mm²
RAS-2.5HVRN1

230V/1φ/50Hz

20 A 2.5 mm² 1.25 mm²

0.75 mm² 0.5 mm²

- The above wire sizes marked with x are selected

at the maximum current of the unit according to the
European Standard, EN60 335-1.

- The above wire sizes marked with y are selected at the

maximum current of the unit according to the wire, MLFC
(Flame Retardant Polyflex Wire) manufactured by
HITACHI Cable Ltd. Japan.

 In case that the power cables are connected in series, add each unit maximum current and select according to the next table:

Selection according to

EN60 335-1

Selection according to MLFC (at

cable Temp. Of 60 ºC)

Current i (A) Wire Size (mm²) Current i (A) Wire Size (mm²)

I ≤ 6

0.75

I ≤ 15

0.5

6 < i ≤ 10

1

15 < i ≤ 18

0.75

10 < i ≤ 16

1.5

18 < i ≤ 24

1.25

16 < i ≤ 25

2.5

24 < i ≤ 34

2

25 < i ≤ 32

4

34 < i ≤ 47

3.5

32 < i ≤ 40

6

47 < i ≤ 62

5.5

40 < i ≤ 63

10

62 < i ≤ 78

8

63 < i

z

78 < i ≤ 112

14

112 < i ≤ 147

22

z In case that current exceeds 63 A do not connect cables in series

 NOTE:

- Follow local codes and regulations when selecting field wires, Circuit breakers and Earth Leakage breakers

- Use the wires which are not lighter than the ordinary polychloroprene sheathed flexible cord (code designation

H05RN-F)

 Select the main switches in according to the next table:

Model Power Source

Max.

Current

CB

ELB

(no. poles/A/Ma)

All Indoor Units

230V/1φ/50Hz

5 A 6 A
RAS-2HVRN1 16 A 16 A
RAS-2.5HVRN1

230V/1φ/50Hz

20 A 20 A

2/20/30

ELB: Earth switch; CB: Switch.

26

ELECTRICAL WIRING

13.3.3. H-LINK SYSTEM

 NOTE:

The H-LINK system can not be applied to the cycle
with the old model unit or the unit with old
transmission

1. Application

The new H-LINK wiring system requires only two
transmission wires connecting each indoor unit and
outdoor unit for up to 16 refrigerant cycles, and
connecting wires for all indoor units and all outdoor units
in series.
This H-LINK system can be applied to the following
models.

Indoor Unit Outdoor Unit

RCI-{{{ FSN1E
RCIM-{{{ FSN
RCD-{{{ FSN
RPC-{{{ FSNE
RPI-{{{ FSN1E
RPK-{{{ FSN(1)(2)M
RPF-{{{ FSNE
RPFI-{{{ FSNE

RAS-{{{HVRN1

2. Features

- The total wiring length is remarkably reduced.

- Only one connection is required for the wiring

between the indoor unit and outdoor unit.

- Easy wiring connection to the central controllers.

3. Specifications

- Transmission Wire: 2-Wire

- Polarity of Transmission Wire: Non-Polar Wire

- Maximum Outdoor Units To Be Connected: 16

Units per H-LINK system.

- Maximum Indoor Units To Be Connected: 3 Units

per cycle and 48 Units per H-LINK system

- Maximum Wiring Length: Total 1000m (including

CSNET WEB). In case that the total wiring length
is longer than 1000m, contact the Hitachi dealer.

- Recommended Cable: Twist Pair Cable with

Shield, over 0.75mm2 (Equivalent to KPEV-S)

- Voltage: DC5V

4. Example of H-LINK system

Using H-Link system only for Air Conditioners.
There are two typical cases of using H-LINK system:

(A) -Using H-LINK System only for Air Conditioners,

without control Device.

Examples:

 Line Connection with All units

 Line Connection for Each Floor

(B) -Using H-LINK System for Air Conditioners with Central

Control Device.
In case that H-LINK is not applied when electrical

wiring is performed.

 NOTE:

Do not make a wiring in a loop.
In the case that H-LINK is not applied after the when
electrical wiring is performed as shown above,
H-LINK is applied after the instrument wiring is
completed. Therefore, the dip switches are required
to be set according to Setting of Dip Switches on
PCB.

5. Dip Switch Setting of Indoor PCB and Outdoor PCB

It is required to set dip switches of every indoor unit and
outdoor unit.

Indoor Units

Outdoor Units

Indoor Units

Outdoor Units

Indoor
Units

Outdoor
Units

Do not make
wiring in a
loop

ELECTRICAL WIRING

27

13.3.4. DIP SWITCH SETTING

 Dip Switch Setting (No H-Link example)  Dip switch setting (H-Link example)

 NOTE:

For single system, the rotary switch must start in 0.

Mark Description Mark Description

x

DSW5 (End Terminal Resistance)

|

Indoor Units

y

DSW4 (Refrigerant Cycle)

}

DSW5 (Refrigerant Cycle)

z

RSW (Outdoor unit address)

~

RSW (Indoor Unit Address)

{

Outdoor Unit

Unit Name of Dip Switch Mark

Setting Before
Shipment

Function

DSW4

ON

1 2 3 4 5 6

Refrigerant Cycle

RSW

For setting refrigerant cycle address of outdoor unit. Set the DSW4 and
RSW not to overlap the setting of other outdoor units in the same H­LINK system.
DSW is setting for the ten digit.

RSW is setting for the last digit.
Outdoor
Unit

End Terminal
Resistance

DSW5-1P

ON

1 2

For matching impedance of transmission circuit. Set the DSW5

according to the quantity of outdoor units in the H-LINK system.

Setting of End Terminal Resistance

Before shipment, No.1 pin of DSW5 is set at the “ON” side.

In the case that the outdoor units quantity in the same H-link is 2 or

more, set No.1 pin of DSW5 at the “OFF” side from the 2nd unit. If only

one outdoor unit is used, no setting is required.

Refrigerant Cycle DSW5

ON

1 2 3 4

For setting refrigerant cycle address of indoor unit. Set the DSW5

corresponding to the address of outdoor unit in the same refrigerant

cycle.
Indoor

Unit

Indoor Unit Address RSW

For setting indoor unit address. Set the RSW not to overlap the setting

of other indoor units in the same refrigerant cycle.

Cycle No 0

Cycle No 1

Cycle No 2

Before
Shipment

Cancelation

Cancelation

28

INSTALLATION OF REMOTE CONTROLLER

14. INSTALLATION OF REMOTE CONTROLLER

14.1. INSTALLATION OF REMOTE CONTROL SWITCH <PC-P2HTE>

All data related to Installation about Remote Control Switch for PC-P2HTE are in the
specific Installation Manual. Please refer to Installation Manual PMML0120A.

15. TEST RUNNING

When installation is completed, perform test run according to the following procedure, and hand over the system to the
customer. Perform test run regarding indoor units one by one in order, and confirm that the electrical wiring and the refrigerant
piping are correctly connected.

Test run should be performed according to the Test Run Procedure on next page.

µ WARNING:

Do not operate the system until all the check points
have been cleared:

- Check to ensure that the electrical resistance is

more than 1 M

Ω

, by measuring the resistance
between ground and the terminal of the electrical
parts. If not, do not operate the system until the
electrical leakage is found and repaired. Do not
impress the voltage on the terminals for
transmission 1 and 2.

- Check to ensure that the stop valves of the outdoor

unit are fully opened, and then start the system.

- Check to ensure that the switch on the main power

source has been ON for more than 12 hours, to
warm the compressor oil by the oil heater.

Pay attention to the following items while the system
is running:

- Do not touch any of the parts by hand at the

discharge gas side, since the compressor chamber
and the pipes at the discharge side are heated
higher than 90°C.

- DO NOT PUSH THE BUTTON OF THE

MAGNETIC SWITCH(ES), it will cause a serious
accident.

- Do not touch any electrical components for more

than three minutes after turning OFF the main
switch

- Confirm that the gas line stop valve and the liquid

line stop valve are fully open.

- Confirm that the leakage of the refrigerant does

not exist. The flare nuts are sometimes loosened
by vibration during transportation.

- Check that the refrigerant piping and the electrical

wiring conform to the same system.

- Confirm that the dip switch setting on the printed

circuit board of the indoor units and the outdoor
units are correct.

- Check whether or not the electrical wiring of the

indoor units and the outdoor units are connected
as shown in the chapter ELECTRICAL WIRING.

 CAUTION:

Confirm that field-supplied electrical components
(main switch fuse, fuse-free breaker, earthleakage
breakers, wires, conduit connectors and wire
terminals) have been properly selected according to
the electrical data given in the Technical Catalog of
the unit and ensure that the components comply with
national and local codes.

 NOTE:

For more reference check Troubleshooting chapter
on Operation Part.

TEST RUNNING

29

15.1. TEST RUN PROCEDURE BY REMOTE CONTROL SWITCH

x

Turn ON the power source of the Units

y

Procedure for TEST RUN mode of remote control switch.
Depress the MODE and the CHECK switches together for more than 3
seconds.

a If TEST RUN and the counting number of the connected units to the

remote control switch (for example ) are indicated on the remote
control switch, the connection of remote control cable is correct. → Go
to {

b. If no indication appears or the number of the units indicated is smaller

than the actual number of the units, some abnormalities exist. → Go to

z

Remote Control

Switch Indication

Wrong Portions

Inspection Points after
the Power Source OFF

 The power source of Outdoor Unit is not turned ON.
 The connection of the remote control cable is

incorrect.

1. Connecting Points of Remote Control Cable
Terminal Board of Remote Control Switch and
Indoor Unit

2. Contact of Terminals of Remote Control Cable

No indication

 The connecting wires of power supply line are

incorrect or loosened

3. Connection Order of each Terminal Board

4. Screw Fastening of each Terminal Boards.

Counting number of
connected units is
incorrect

 The power source of outdoor unit is not turned ON
 The operating line wiring between indoor unit and

outdoor unit is not connected.

 The connection of control cables between each

indoor units are incorrect. (When one remote control
switch controls multiple units)

5. Dip Switch Setting on Printed Circuit Board

6. Connection on the PCB

7. This is the same as item z 1, 2, and 3

z

Back to x after checking

{

Select TEST RUNNING MODE by depressing MODE Switch (COOL OR HEAT)

|

Depress RUN/STOP switch.

a The TEST RUN operation will be started. (The 2 hours OFF-TIMER will be set and the TEST RUN operation will be finished after

2 hours unit operation or by depressing the RUN/STOP switch again).

 NOTE:

TEST RUN operation ignores the temperature limitation and ambient temperature during heating operation to have a
continuous operation, but the protections are alive. Therefore, the protection may activate when the heating TEST RUN
operation is performed in high ambient temperature.
TEST RUN operation time can be modifyed / increased depressing the time switch in the Remote Control.

b If the unit do not start or the operation lamp on the remote control switch is flickered, some abnormalities exist. →Go to }

Remote Control

Switch Indication

Unit Condition

Wrong Portions

Inspection Points after

Power Source OFF

The operation lamp
flickers. (1 time/1
sec.) And the Unit
No. and Alarm Code
03 flicker

The unit does not
start.

The power source of Outdoor Unit
in not turned ON.
The connecting wires of operating
line are incorrect or loosened.

1. Connecting Order of each Terminal Boards.

2. Screw fastening of each Terminal Boards.

 NOTE:

Recovering method of FUSE for operating
circuit. There is a fuse (FUSE4 on Indoor
Unit PCB1, EF1 on Outdoor Unit PCB1) to
protect operating circuit on the PCB, when
the power lines are connected to operating
lines. If fuse is melted, operating circuit can
be recovered once by setting the dip switch
on the PCB as shown in ~

The operation lamp
flickers. (1 time/2 s)

The unit does not
start.

Remote control cable is broken.
Contact of connectors is not good.
The connection of remote control
cable is incorrect

This is the same as item z 1, 2

Indication of Flicker
except above

The unit does not
start, or start once
and then stops

The connection of thermistor or
other connectors are incorrect.
Tripping of protector exists, or else.

Check by the abnormality mode table in the
Technical Catalogue (Do it by service people).

The operation lamp
Flickers. (1 Time/1s)
Unit No. , Alarm
Code )) and Unit
Code  flicker

The unit does not
start.

The connection of the remote
control cable between Indoor Units
is incorrect.

Check by the abnormality mode table in the
Technical Catalog (Do it by service people).

}

Back to x after checking

Except RPK

Only RPK-FSNM

~

Instructions fot the recovery when the fuse of the transmission circuit is blown out:

1. Correct the wiring to the terminal board.

2. Set the 1

st

pin of DSW7 on the indoor unit PCB to ON

Set the 2

nd

pin of DSW7 on the indoor unit PCB to ON. (Only RPK-FSNM)

ON

1 2

ON

1 2

Operation Lamp

)

(



Counting
Number of
Connected
Units

30

TEST RUNNING

15.2. TEST RUN FROM OUTDOOR UNIT SIDE

The procedure of test run from outdoor unit side is
indicated below. Setting of this DIP switch is available with
the power source ON.

Setting of Dip Switch (Before Shipment)

DSW301

Switch for Setting of Service Operation and Function

ON

1 2 3 4 5 6

1. Test Run

2. COOL/HEAT Setting
(ON: Heating Operation)

3. OFF (Fixed)

4. Manual Compressor OFF

5. No Setting

6. No Setting

WARNING:

Do not touch any other electrical parts when operating
switches on the PCB.

Do not attach or detach service cover when the power
source for the outdoor unit is ON and the outdoor unit
is operated.

Turn all DIP switches of DSW1 OFF when the test run
operation is completed.

Dip Switch Setting Operation Remarks

Test Run

x Setting of Operation Mode

Cooling: Set DSW301 pin 1-2 OFF.

ON

1 2 3 4 5 6

Heating: Set DSW301 pin 2 ON.

ON

1 2 3 4 5 6

yStarting Test Run

Set DSW301 pin 1 ON and the
operation is started after a few ~20
seconds.

When heating operation, leave
DSW1-2 at ON

↓

ON

1 2 3 4 5 6

x The indoor unit automatically start to

operate when the test run of the
outdoor unit is set.

y The ON/OFF operation can be

performed from the remote control
switch or DSW301-1 of the outdoor
unit.

z Continuous operation during 2 hours

is performed without Thermo-OFF.

 NOTE:

TEST RUN operation time can be
increased depressing the time
switch in the Remote Control.

 Take care that the indoor units start

operation in accord with the test run
operation of the outdoor unit.

 The test run is started from the

outdoor unit and stopped from the
remote control switch, the test run
function of the remote control switch
is cancelled. However, the test run
function of the outdoor unit is not
cancelled

 In case that the plural indoor units

are connected with one remote
control switch, all the units start test
run operation at the same time,
therefore, turn the power source OFF
for the indoor units not to operate
test run. In this case, the TEST RUN
indication of the remote control
switch may flicker, and this is not
abnormal.

 The setting of DSW1 is not required

for the test run from the remote
control switch.

Manual OFF

of

Compressor

x Setting

-Compressor Manual OFF:
Set DSW301 pin 4 ON.

ON

1 2 3 4 5 6

-Compressor ON:
Set DSW301 all pins OFF.

ON

1 2 3 4 5 6

x When DSW301-4 is ON during

compressor operation, the
compressor stops to operate
immediately and the indoor unit is
under the condition of Thermo-OFF.

y When DSW1-4 is OFF, the

compressor starts to operate after the
cancellation of 3-minutes guard.

 Do not repeat compressor ON/OFF

frequently.

Manual
Defrost

x Manual Defrost Operation Starts

Press PSW1 for more than 3
seconds during heating operation,
the defrost operation is started after 2
minutes.This function is not available
within 5 minutes after starting heating
operation

y Manual Defrost Operation Finishes

Defrost operation is automatically
ended and the heating operation is
started.

xDefrost operation is available

regardless of frosting condition and
total time of heating operation.

yDefrost operation in not performed

when the temperature of outdoor
heat exchanger is higher than 10°C,
high pressure is higher than 3.3MPa
(33kgf/cm

2

G) or Thermo-OFF.

 Do not repeat defrost operation

frequently.

SAFETY SUMMARY & CONTROL DEVICE SETTING

31

16. SAFETY SUMMARY & CONTROL DEVICE SETTING

 Compressor Protection

High Pressure Switch:
This switch cuts out the operation of the compressor
when the discharge pressure exceeds the setting.



Fan Motor Protection

When the thermistor temperature is reached to the
setting, motor output is decreased.
The other way, when the temperature becomes lower,
limitation is cancelled.

Model RAS-2HVRN1 RAS-2.5HVRN1

For Compressor

Pressure Switches

Automatic Reset, Non-Adjustable (each one for each

compressor)

-0.05 -0.05

High Cut-Out MPa 4.15 4.15

-0.15 -0.15

Cut-In MPa

3.20 ± 0.15 3.20 ± 0.15

For Control

Fuse

1φ, 230V, 50Hz

A25 25

CCP Timer Non-Adjustable

Setting Time

min.

33

For Condenser Fan Motor

Internal Thermostat

Automatic Reset, Non-Adjustable (each one for each

motor)

Cut-Out

o

C

120 ±5 120 ±5

For Control Circuit

Fuse Capacity on PCB A 3 3

17. TROUBLESHOOTING

Alarm Code Indication of Remote Control Switch:

Model Code

Indication Model

Abnormal
Indoor Unit No.

Abnormal Ref.
Cycle No.

Alarm Code Model Code

Connected No.

of Indoor Units

Alarm Code



Heat-Pump

"

Inverter



Multi



Cooling Only



Others

Indicated

for a

second

alternately

Code

No.

Category Content of Abnormality Leading Cause

01 Indoor Unit Tripping of Protection Device

Failure of Fan Motor, Drain Discharge, PCB, Relay, Float Switch
Activated

02 Outdoor Unit Tripping of Protection Device Activation of PSH, Locked Motor

03

Abnormality between Indoor (or Outdoor) and
Outdoor (or Indoor)

Incorrect Wiring, Failure of PCB, Tripping of Fuse, Power
Supply OFF

04

Transmission

Abnormality between Inverter and Control PCB Failure in Transmission between PCBs for Inverter

06 Voltage Drop

Voltage Drop by Excessively Low or High
Voltage to Outdoor Unit

Voltage Drop of Power Supply. Incorrect Wiring or insufficient
Capacity of Power Supply Wiring

07 Decrease in Discharge Gas Superheat Excessive Refrigerant Charge, Expansion Valve Open Lock

08

Cycle

Increase in Discharge Gas Temperature

Insufficient Refrigerant, Ref. Leakage, Clogging or Expansion
Valve Close Lock

32

TROUBLESHOOTING

Code

No.

Category Content of Abnormality Leading Cause

11 Inlet Air Thermistor

12 Outlet Air Thermistor

13 Freeze Protection Thermistor

14 Gas Piping Thermistor

Failure of Thermistor, Sensor, Connection.

19

Sensor on

Indoor Unit

Tripping of Protection Device for Fan Motor Failure of Fan Motor

20 Compressor Thermistor

22 Outdoor Air Thermistor

24 Evaporating Thermistor

Failure of Thermistor, Sensor, Connection

31 Incorrect Setting of Outdoor and Indoor Unit Incorrect Setting of Capacity Code.

35 Incorrect Setting in Indoor Unit No. Duplication of Indoor Unit number

38

Sensor on

Outdoor Unit

Abnormality of Protective Circuit in Outdoor Unit

Failure of Indoor Unit PCB. Incorrect wiring. Connection to PCB
in Indoor Unit.

41

Overload Cooling
(Possibility of high pressure device activation)

O.U. Pipe Thermistor Temp. is Higher than 55ºC
and the Comp. Top Temp. is Higher than 95ºC
when O.U. Protection Device is activated.

42

Overload Heating
(Possibility of high pressure device activation)

I.U. Freeze Protection Thermistor Temp. is Higher than 55ºC
and the Comp. Top Temp. is Higher than 95ºC when O.U.
Protection Device is activated.

47

Activation of Low Pressure Decrease Protection
Device

Stoppage by Excessively Decrease of evaporating Temperature
(Te < -35ºC) is activated 3 times in one hour, Locked Motor in
Heating Operation.

48

Pressure

Protection activation for overload operation

Excessive Refrigerant. Pipe clogging.
Compressor Failure

51 Abnormality of Current Sensor for Inverter Failure of Control PCB

53 Protection Activation of Transistor Module

Inverter PCB abnormality.
Failure of Compressor, clogging of Heat Exchanger.

54 Inverter Fin Temperature Increase

Abnormal Inverter Fin Thermistor.
Clogging of Heat Exchanger
Abnormal Outdoor Fan

55

Inverter

Inverter Abnormality Inverter PCB

57 Outdoor Fan Fan Motor Abnormality

Disconnected wire of Incorrect wiring between Control PCB and
Inverter PCB.
Incorrect Wiring or Fan Motor Abnormality

59 Inverter

Thermistor of Inverter Fin Abnormality (for
Inverter Fin Temperature)

Loose connector, Disconnnected wire short circuit

b1

Indoor unit No.

setting

Incorrect unit No. Setting Over 64 indoor units setting by No. or indoor unit address.

EE Compressor Compressor Protection Alarm Failure of Compressor.