Hitachi UTOPIA ES RAS-3HVRNS3 User manual

UTOPIA IVX PREMIUM / IVX STANDARD SERIES
RAS-(2/2.5)HVNP1 / RAS-3HVNC1
UTOPIA ES SERIES
RAS-3HVRNS3
INSTALLATION AND OPERATION MANUAL

English
Specications in this manual are subject to change without notice in order that HITACHI may bring the latest innovations to
their customers. Whilst every effort is made to ensure that all specications are correct, printing errors are beyond Hitachi’s
control; HITACHI cannot be held responsible for these errors.

CAUTION
This product shall not be mixed with general house waste at the end of its life and it shall be retired according to the
appropriated local or national regulations in a environmentally correct way.
Due to the refrigerant, oil and other components contained in Air Conditioner, its dismantling must be done by a pro-
fessional installer according to the applicable regulations.
Contact to the corresponding authorities for more information.

English
From 4th July 2007 and following Regulation EC Nº 842/2006 on Certain Fluorinated Greenhouse gases, it is mandatory to ll in the label attached to the unit
with the total amount of refrigerant charged on the installation.
Do not vent R410A/R407C into the atmosphere: R410A & R407C are uorinated greenhouse gases covered by the Kyoto protocol global warming potential
(GWP) R410A/R407C: = 1975/1652.5.

English
Instructions to ll in the "F-Gas Label":
1.- Fill in the Label with indelible ink the refrigerant amounts:  - Factory Charge,  - Additional Charge &  - Total Charge.
2.- Stick the Protection Plastic Film on the F-Gas Label (delivered in a plastic bag with the Manual). To see Figure nº 2.
Figure 1. F-Gas Label with Protection Plastic Film Figure 2. Protection Plastic Film
Protection Plastic Film
Adhesive Surface
Peel-off Paper

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 Opera-
tion Manual is only related to Indoor Units FSN(H)(2/3/4)(M/E)(i)(k) combined with Outdoor Units
HVN(P/C)1 & RAS-3HVRNS3.

IVX Premium series
OUTDOOR UNIT · UNIDAD EXTERIOR · AUßENEINHEIT · UNITÉ EXTÉRIEURE · UNITÀ ESTERNA ·
UNIDADE EXTERIOR · UDENDRS AGGREGAT · BUITENTOESTEL · UTOMHUSENHET · ΕΞΩΤΕΡΙΚΗ ΜΟΝΑΔΑ
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 - ΜΟΝΤΕΛΑ ΜΕ ΑΝΤΛΙΑ ΘΕΡΜΟΤΗΤΑΣ
Single Phase - Monofásico - Einphasig - Monophasé - Monofase
Monofásico - Enfaset - Eenfasig - En fas - Μονοφασικά
1~ 230V 50Hz
Unit
RAS-2HVNP1
RAS-2.5HVNP1
IVX Standard series
OUTDOOR UNIT · UNIDAD EXTERIOR · AUßENEINHEIT · UNITÉ EXTÉRIEURE · UNITÀ ESTERNA ·
UNIDADE EXTERIOR · UDENDRS AGGREGAT · BUITENTOESTEL · UTOMHUSENHET · ΕΞΩΤΕΡΙΚΗ ΜΟΝΑΔΑ
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 - ΜΟΝΤΕΛΑ ΜΕ ΑΝΤΛΙΑ ΘΕΡΜΟΤΗΤΑΣ
Single Phase - Monofásico - Einphasig - Monophasé - Monofase
Monofásico - Enfaset - Eenfasig - En fas - Μονοφασικά
1~ 230V 50Hz
Unit
RAS-3HVNC1
ES series
OUTDOOR UNIT · UNIDAD EXTERIOR · AUßENEINHEIT · UNITÉ EXTÉRIEURE · UNITÀ ESTERNA ·
UNIDADE EXTERIOR · UDENDRS AGGREGAT · BUITENTOESTEL · UTOMHUSENHET · ΕΞΩΤΕΡΙΚΗ ΜΟΝΑΔΑ
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 - ΜΟΝΤΕΛΑ ΜΕ ΑΝΤΛΙΑ ΘΕΡΜΟΤΗΤΑΣ
Single Phase - Monofásico - Einphasig - Monophasé - Monofase
Monofásico - Enfaset - Eenfasig - En fas - Μονοφασικά
1~ 230V 50Hz
Unit
RAS-3HVRNS3

INDEX ÍNDICE
PART I OPERATION
1. GENERAL INFORMATION
2. SAFETY
3. PRODUCT GUIDE
4. IMPORTANT NOTICE
5. SYSTEM DESCRIPTION
6. TRANSPORTATION AND HANDLING
7. BEFORE OPERATION
8. REMOTE CONTROLLER OPERATION
9. AUTOMATIC CONTROLS
10. BASIC TROUBLESHOOTING
PART II INSTALLATION
11. NAME OF PARTS
12. REFRIGERANT CYCLE
13. UNITS INSTALLATION
14. REFRIGERANT PIPING & REFRIGERANT CHARGE
15. DRAIN PIPING
16. ELECTRIC WIRING
17. INSTALLATION OF REMOTE CONTROLLER
18. TEST RUNNING
19. SAFETY SUMMARY & CONTROL DEVICE SETTING
20. TROUBLESHOOTING
1ª PARTE: FUNCIONAMIENTO
1. INFORMACIÓN GENERAL
2. SEGURIDAD
3. GUÍA DE PRODUCTO
4. AVISO IMPORTANTE
5. DESCRIPCIÓN DEL SISTEMA
6. TRANSPORTE Y MANIPULACIÓN
7. ANTES DEL FUNCIONAMIENTO
8. FUNCIONAMIENTO DEL CONTROL REMOTO
9. CONTROLES AUTOMÁTICOS
10. RESOLUCIÓN DE PROBLEMAS BÁSICOS
2ª PARTE: INSTALACIÓN
11. NOMBRE DE LAS PIEZAS
12. CICLO DE REFRIGERANTE
13. INSTALACIÓN DE LAS UNIDADES
14. TUBERÍA Y CARGA DE REFRIGERANTE
15. TUBERÍA DE DESAGÜE
16. CABLEADO ELÉCTRICO
17. INSTALACIÓN DEL CONTROL REMOTO
18. PRUEBA DE FUNCIONAMIENTO
19. RESUMEN DE SEGURIDAD Y AJUSTE DE LOS
DISPOSITIVOS DE CONTROL
20. RESOLUCIÓN DE PROBLEMAS
INHALTSVERZEICHNIS INDEX
TEIL I – BETRIEB
1. ALLGEMEINE INFORMATIONEN
2. SICHERHEIT
3. PRODUKTÜBERSICHT
4. WICHTIGER HINWEIS
5. SYSTEMBESCHREIBUNG
6. TRANSPORT UND BEDIENUNG
7. VOR DER INBETRIEBNAHME
8. BETRIEB MIT FERNBEDIENUNG
9. AUTOMATISCHE STEUERUNG
10. GRUNDLEGENDE FEHLERBESEITIGUNG
TEIL II – INSTALLATION
11. TEILEBEZEICHNUNG
12. KÜHLKREISLAUF
13. GERÄTEINSTALLATION
14. KÄLTEMITTELROHRE UND KÄLTEMITTELMENGE
15. ZUSÄTZLICHE KÜHLMITTELMENGE
16. VERKABELUNG
17. INSTALLATION EINER FERNBEDIENUNG
18. TESTLAUF
19. SICHERHEITSÜBERSICHT UND EINSTELLUNG DER
STEUERGERÄTE
20. FEHLERBEHEBUNG
PARTIE I – FONCTIONNEMENT
1. INFORMATIONS GÉNÉRALES
2. SÉCURITÉ
3. GUIDE DU PRODUIT
4. REMARQUES IMPORTANTES
5. DESCRIPTION DU SYSTÈME
6. TRANSPORT ET MANIPULATION
7. AVANT L’UTILISATION
8. FONCTIONNEMENT DE LA TÉLÉCOMMANDE
9. CONTRÔLES AUTOMATIQUES
10. DÉPANNAGE DE BASE
PARTIE II – INSTALLATION
11. NOMENCLATURE DES PIÈCES
12. CYCLE DU FLUIDE FRIGORIGÈNE
13. INSTALLATION DES UNITÉS
14. TUYAUTERIE DU FLUIDE FRIGORIGÈNE ET
CHARGE DU FLUIDE FRIGORIGÈNE
15. TUYAUTERIE D’ÉVACUATION DES CONDENSATS
16. CÂBLAGE ÉLECTRIQUE
17. INSTALLATION DE LA TÉLÉCOMMANDE
18. TEST DE FONCTIONNEMENT
19. SOMMAIRE DES DISPOSITIFS DE SÉCURITÉ &
RÉGLAGE DES ORGANES DE CONTRÔLE
20. DEPANNAGE
INDICE ÍNDICE
PARTE I FUNZIONAMENTO
1. INFORMAZIONI GENERALI
2. SICUREZZA
3. GUIDA DEL PRODOTTO
4. NOTA IMPORTANTE
5. DESCRIZIONE DEL SISTEMA
6. TRASPORTO E MOVIMENTAZIONE
7. PROCEDURA PRELIMINARE
8. FUNZIONAMENTO DEL COMANDO REMOTO
9. CONTROLLI AUTOMATICI
10. RISOLUZIONE DEI PROBLEMI MINORI
PART II INSTALLAZIONE
11. NOMENCLATURA DEI COMPONENTI
12. CICLO REFRIGERANTE
13. INSTALLAZIONE DELLE UNITÀ
14. LINEA DEL REFRIGERANTE E CARICA DI
REFRIGERANTE
15. LINEA DI DRENAGGIO
16. COLLEGAMENTI ELETTRICI
17. INSTALLAZIONE DEL COMANDO REMOTO
18. PROVA DI FUNZIONAMENTO
19. PRECAUZIONI PER LA SICUREZZA E IMPOSTAZIONI
DEI DISPOSITIVI DI CONTROLLO
20. ELIMINAZIONE DEI GUASTI
PARTE I FUNCIONAMENTO
1. INFORMAÇÃO GERAL
2. SEGURANÇA
3. GUIA DO PRODUTO
4. NOTA IMPORTANTE
5. DESCRIÇÃO DO SISTEMA
6. TRANSPORTE E MANUSEAMENTO
7. ANTES DE ARRANCAR A UNIDADE
8. FUNCIONAMENTO DO CONTROLO REMOTO
9. CONTROLOS AUTOMÁTICOS
10. RESOLUÇÃO DE PROBLEMAS BÁSICOS
PARTE II INSTALAÇÃO
11. NOME DAS PEÇAS
12. CICLO DE REFRIGERAÇÃO
13. INSTALAÇÃO DAS UNIDADES
14. TUBAGEM DE REFRIGERANTE E CARGA DE
REFRIGERANTE
15. TUBAGEM DE ESGOTO
16. LIGAÇÕES ELÉCTRICAS
17. INSTALAÇÃO DO CONTROLO REMOTO
18. PROVA DE FUNCIONAMENTO
19. SUMÁRIO DE SEGURANÇA E AJUSTE DE
DISPOSITIVO DE CONTROLO
20. RESOLUÇÃO DE PROBLEMAS

INDHOLDSFORTEGNELSE INHOUDSOPGAVE
DEL I - BETJENING
1. GENEREL INFORMATION
2. SIKKERHED
3. PRODUKTVEJLEDNING
4. VIGTIG MEDDELELSE
5. SYSTEMBESKRISELVE
6. TRANSPORT OG HÅNDTERING
7. FØR OPERATION
8. FJERNBETJENING
9. AUTOMATISK KONTROLLER
10. BASIS FEJLFINDING
DEL II- MONTERING
11. NAVN PÅ DELE
12. KØLEKREDSLØB
13. MONTERING AF ENHEDER
14. KØLERØRSYSTEM OG PÅFYLDNING AF
KØLEMIDDEL
15. AFLØBSRØR
16. ELEKTRISK LEDNINGSFØRING
17. MONTERING AF FJERNBETJENING
18. TESTKØRSEL
19. OVERSIGT OVER INDSTILLINGER FOR
SIKKERHEDS- OG KONTROLENHEDER
20. FEJLFINDING
DEEL I BEDIENING
1. ALGEMENE INFORMATIE
2. VEILIGHEID
3. PRODUCTGIDS
4. BELANGRIJKE MEDEDELING
5. SYSTEEMBESCHRIJVING
6. TRANSPORT EN HANTERING
7. VOORDAT U HET SYSTEEM IN GEBRUIK NEEMT
8. GEBRUIK VAN DE EXTERNE BEDIENING
9. AUTOMATISCHE BESTURING
10. ELEMENTAIRE PROBLEMEN OPLOSSEN
DEEL II INSTALLATIE
11. NAMEN VAN ONDERDELEN
12. KOUDEMIDDELCYCLUS
13. INSTALLATIE VAN DE UNITS
14. KOELMIDDELLEIDINGEN & KOELMIDDEL VULLEN
15. AFVOERLEIDING
16. ELEKTRISCHE BEDRADING
17. INSTALLATIE VAN AFSTANDSBEDIENING
18. PROEFDRAAIEN
19. VEILIGHEIDSSAMENVATTING
& BESTURINGSINRICHTING
20. PROBLEMEN OPLOSSEN
INNEHALLSFÖRTECKNING ΕΥΡΕΤΗΡΙΟ
DEL I ANVÄNDNING
1. ALLMÄN INFORMATION
2. SÄKERHET
3. PRODUKTGUIDE
4. VIKTIG ANMÄRKNING
5. SYSTEMÖVERSKIT
6. TRANSPORT OCH HANTERING
7. FÖRE DRIFT
8. FJÄRRKONTROLL
9. AUTOMATIK KONTROLLANORDNING
10. GRUNDLÄGGANDE FELSÖKNING
DEL II INSTALLATION
11. DELARNAS NAMN
12. KYLMEDIETS CYKEL
13. INSTALLATION AV ENHETER
14. KYLRÖR & PÅFYLLNING AV KYLMEDIUM
15. DRÄNERINGSRÖR
16. ELEKTRISKA KABLAR
17. INSTALLATION AV FJÄRRKONTROLL
18. PROVKÖRNING
19. SÄKERHETSSAMMANFATTNING OCH
SÄKERHETSINSTÄLLNINGAR
20. FELSÖKNING
ΜΕΡΟΣ Ι – ΛΕΙΤΟΥΡΓΙΑ
1. ΓΕΝΙΚΕΣ ΠΛΗΡΟΦΟΡΙΕΣ
2. ΑΣΦΆΛΕΙΑ
3. ΟΔΗΓΟΣ ΠΡΟΪΟΝΤΟΣ
4. ΣΗΜΑΝΤΙΚΗ ΠΑΡΑΤΗΡΗΣΗ
5. ΠΡΙΝ ΤΗ ΛΕΙΤΟΥΡΓΙΑ
6. ΜΕΤΑΦΟΡΆ ΚΑΙ ΧΕΙΡΙΣΜΌΣ
7. ΠΡΙΝ ΤΗ ΛΕΙΤΟΥΡΓΙΑ
8. ΛΕΙΤΟΥΡΓΙΑ ΤΗΛΕΧΕΙΡΙΣΤΗΡΙΟΥ
9. ΑΥΤΟΜΑΤΕΣ ΛΕΙΤΟΥΡΓΙΕΣ
10. ΑΝΤΙΜΕΤΩΠΙΣΗ ΠΡΟΒΛΗΜΑΤΩΝ - ΒΑΣΙΚΑ
ΜΕΡΟΣ ΙΙ – ΕΓΚΑΤΑΣΤΑΣΗ
11. ΟΝΟΜΑΤΑ ΕΞΑΡΤΗΜΑΤΩΝ
12. ΚΥΚΛΟΣ ΨΥΞΗΣ
13. ΕΓΚΑΤΑΣΤΑΣΗ ΕΣΩΤΕΡΙΚΩΝ ΜΟΝΑΔΩΝ
14. ΣΩΛΗΝΩΣΕΙΣ ΨΥΚΤΙΚΟΥ & ΠΛΗΡΩΣΗ ΜΕ
ΨΥΚΤΙΚΟ ΜΕΣΟ
15. ΣΩΛΗΝΩΣΕΙΣ ΑΠΟΧΕΤΕΥΣΗΣ
16. ΗΛΕΚΤΡΙΚΗ ΚΑΛΩΔΙΩΣΗ
17. ΕΓΚΑΤΑΣΤΑΣΗ ΤΟΥ ΧΕΙΡΙΣΤΗΡΙΟΥ
18. ΔΟΚΙΜΑΣΤΙΚΗ ΛΕΙΤΟΥΡΓΙΑ
19. ΣΥΝΟΠΤΙΚΕΣ ΠΡΟΦΥΛΑΞΕΙΣ ΑΣΦΑΛΕΙΑΣ
& ΡΥΘΜΙΣΕΙΣ ΣΥΣΚΕΥΩΝ ΕΛΕΓΧΟΥ
20. ΑΝΤΙΜΕΤΩΠΙΣΗ ΠΡΟΒΛΗΜΑΤΩΝ
EN English Original version
ES Español Versión traducida
DE Deutsch Übersetzte Version
FR Français Version traduite
IT Italiano Versione tradotta
PT Português Versão traduzidal
DA Dansk Oversat version
NL Nederlands Vertaalde versie
SV Svenska Översatt version
EL Ελληνικα Μεταφρασμένη έκδοση

General information
1
PMML0318A - P5415337
ENGLISH
PART I- OPERATION
1.2 ENVIRONMENT-FRIENDLY UNITS
1 GENERAL INFORMATION
1.1 GENERAL NOTES
© Copyright 2014 HITACHI Air Conditioning Products Europe,
S.A.U – All rights reserved.
No part of this publication may be reproduced, copied, led or
transmitted in any shape or form without the permission of
HITACHI Air Conditioning Products Europe, S.A.U.
Within the policy of continuous improvement of its products,
HITACHI Air Conditioning Products Europe, S.A.U. reserves the
right to make changes at any time without prior notication and
without being compelled to introducing them into products subse-
quently sold. This document may therefore have been subject to
amendments during the life of the product.
HITACHI makes every effort to offer correct, up-to-date docu-
mentation. Despite this, printing errors cannot be controlled by
HITACHI and are not its responsibility.
As a result, some of the images or data used to illustrate this
document may not refer to specic models. No claims will be ac-
cepted based on the data, illustrations and descriptions included
in this manual.
This range of HITACHI outdoor units uses environmentally-frien-
dly R410A gas refrigerant, and the RoHS and Green Dot regula-
tions are applied throughout the manufacturing and installation
process to reect HITACHI’s awareness of environmental respect
and commitment.
2 SAFETY
2.1 APPLIED SYMBOLS
During normal air conditioning system design work or unit insta-
llation, greater attention must be paid in certain situations requi-
ring particular care in order to avoid injuries an damage to the
unit, the installation or the building or property.
Situations that jeopardise the safety of those in the surrounding
area or that put the unit itself a risk will be clearly indicated in this
manual.
To indicate these situations, a series of special symbols will be
used to clearly identify these situations.
Pay close attention to these symbols and to the messages fo-
llowing them, as your safety and that of others depends on it.
DANGER
• The text following this symbol contains information and
instructions relating directly to your safety and physical
wellbeing.
• Not taking these instructions into account could lead to
serious, very serious or even fatal injuries to you and
others in the proximities of the unit.
In the text following the danger symbol you can also nd informa-
tion on safe procedures during unit installation.
CAUTION
• The text following this symbol contains information and ins-
tructions relating directly to your safety and physical wellbeing.
• Not taking these instructions into account could lead to minor
injuries to you and others in the proximities of the unit.
• Not taking these instructions into account could lead to unit
damage.
In the text following the caution symbol you can also nd informa-
tion on safe procedures during unit installation.
NOTE
• The text following this symbol contains information or instruc-
tions that may be of use or that require a more thorough ex-
planation.
• Instructions regarding inspections to be made on unit parts or
systems may also be included.
1

2
PMML0318A - P5415337
Product guide
DANGER
• Do not pour water into the indoor or outdoor unit. The-
se 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 re Turn OFF the main switch, put out the re
at once and contact your service contractor.
CAUTION
• Do not use any sprays such as insecticide, lacquer, hair spray
or other ammable 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 qualied 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.
• Refrigerant leakage can cause difculty with breathing due to
insufcient air.
• This appliance must be used only by adult and capable
people, having received the technical information or instruc-
tions to handle properly and safely this appliance.
• Children should be supervised to ensure that they do not play
with the appliance.
NOTE
It is recommended to ventilate the room every 3 or 4 hours.
2.2 ADDITIONAL INFORMATION ABOUT SAFETY
3 PRODUCT GUIDE
3.1 CLASSIFICATION OF IVX OUTDOOR UNITS MODELS
Unit type (Outdoor unit): RAS
Position-separating hyphen (xed)
Compressor power (HP): 2, 2.5, 3
H = Heat pump
V = Single phase unit (1~ 230V 50Hz)
N = R410A refrigerant
P: Premium series
C: Standard series
Series
RAS – X H V N X 1
3.2 CLASSIFICATION OF ES OUTDOOR UNITS MODELS
Unit type (Outdoor unit): RAS
Position-separating hyphen (xed)
Compressor power (HP): 3
H = Heat pump
V = Single phase unit (1~ 230V 50Hz)
R = Inverter system
N = R410A refrigerant
S: ES series
Series
RAS – X H V R N S 3
3

Important notice
3
PMML0318A - P5415337
ENGLISH
4 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 specications without notice.
• HITACHI cannot anticipate every possible circumstance that
might involve a potential hazard.
• This air conditioner has been designed for standard air condi-
tioning for human beings. For use in other applications, plea-
se contact your HITACHI dealer or service contractor.
• No part of this manual may be reproduced without written per-
mission.
• If you have any questions, contact your service contractor of
HITACHI.
• 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.
• Check and make sure that the explanations of each part of
this manual correspond to your air conditioner model.
• Refer to the models codication to conrm the main characte-
ristics of your system.
• Signal words (DANGER, WARNING and CAUTION) are used
to identify levels of hazard seriousness. Denitions for iden-
tifying 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 tem-
perature. Operate the air conditioner within this range:
Temperature
Maximum Minimum
Cooling mode Indoor 32°C DB/23°C WB 21°C DB/15°C WB
Outdoor 46°C DB (*) -5°C DB
Heating mode Indoor 27°C DB 15°C DB
Outdoor 15°C WB -20°C WB
DB: Dry Bulb Temperature
WB: Wet Bulb Temperature (*) 43ºC RAS-3HVRNS3
• These operations modes are controlled by the remote control
switch.
DANGER
Pressure Vessel and Safety Device: This air conditio-
ner 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 abnor-
mal pressure, a high pressure switch, which needs no
eld 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 applica-
tion. If installed in house hold appliance, it could cause electro-
magnetic interference.
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 start-up and during the operation.
Maintenance: Periodically check the high pressure side pressu-
re. If the pressure is higher than the maximum allowable pressu-
re, stop the system and clean the heat exchanger or remove the
cause.
4
Maximum allowable pressure and high pressure cut-out value:
Outdoor unit model Refrigerant Maximun allowable
pressure (MPa)
High pressure switch cut-out
value (MPa)
RAS-2HVNP1
RAS-2.5HVNP1 R410A 4.15 4.00 ~ 4.10
RAS-3HVNC1 R410A 4.15 4.00 ~ 4.10
RAS-3HVRNS3 R410A 4.15 4.00 ~ 4.10

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PMML0318A - P5415337
System description5
NOTE
The label for the vessel under PED are attached on the high pres-
sure 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 chan-
ge 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.
5 SYSTEM DESCRIPTION
• Long piping for high-rise buildings.
• Various combinations of indoor units type.
• Flexibility of indoor unit control.
• High reliability.
• Space saving.
• Easy installation.
Maximum piping length Lo-i:
-Actual length
-Equivalent length
50
70
Maximum height difference Ho-i:
-Outdoor unit is higher than indoor unit
-Indoor unit is higher than outdoor unit
30
20
NOTE
RCI-FSN3 (High efciency – 4 step fan speed) indoor unit can connect in 1 indoor unit combination only. For use in 2 indoor units
combination, please contact your Hitachi dealer or service contractor.
6 TRANSPORTATION AND HANDLING
When hanging the unit, ensure a balance of the unit, check safety
and lift it up smoothly.
Do not remove any packing materials.
Hang the unit under packing condition with two ropes.
For safety reasons ensure that the outdoor unit is lifted smoothly
and does not lean.
Model Unit Gross Weight
(kg)
RAS-(2-2.5)HVNP1 48
RAS-3HVNC1 49
RAS-3HVRNS3 49
1
515 mm 180 mm
275 mm
Center of
gravity

Before operation
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PMML0318A - P5415337
ENGLISH
8 REMOTE CONTROLLER OPERATION
It is advisable to use PC-ART or PC-ARF remote controller (both optional). For more information about it installation and operation,
please refer to its corresponding Installation and Operation Manuals.
7
7 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 com-
pressor failure because the compressor is not heated well.
• When the system is started after a shutdown longer that ap-
proximately 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 ener-
gised 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 cau-
se damage to plastic parts.
9 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 stop-
ped. 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.
Operation may stop for 6 minutes maximum to protect compressor.
Frost prevention during cooling operation
When the system is operated in a low temperature room, the coo-
ling 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 opera-
tion, 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 xes horizontally.

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PMML0318A - P5415337
Basic troubleshooting
10 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 ow sound
While the system is being started or stopping, sound from the
refrigerant ow may be heard.
• Smells from indoor unit
Smell adheres on indoor unit after a long period of time. Clean the
air lter 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 operation, a sound may be heard from the in-
door 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 ow of the outside or inside
units.
-Check if too much heat source exists in the room.
-Check if the air lter 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 ope-
rating range.
Abnormal swing louver’s position
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 number 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.
10

Name of parts
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PMML0318A - P5415337
ENGLISH
PART II-INSTALLATION
11 NAME OF PARTS
If do you want more information check the technical catalogue.
RAS-(2/2.5)HVNP1 / RAS-3HVNC1 / RAS-3HVRNS3
579
600
21
26 792 69 37 298
320
340
11
No. Part Name
1Compressor
2Accumulator
3Heat exchanger
4 Fan
5Fan motor
6 Strainer
7 Distributor
8 Reversing valve
9 Expansion valve
10 Stop valve for gas line
No. Part Name
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 outlet
19 Air inlet

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PMML0318A - P5415337
Refrigerant cycle
12 REFRIGERANT CYCLE
Refrigerant ow direction
(cooling)
Refrigerant ow direction
(heating) Field refrigerant piping Flare connection Brazing connection
12
No. Part name
1Compressor
2Heat exchanger
3Accumulator
4 Expansion valve
5Reversing valve
6 Strainer 1/4
7 Distributor
8 Check joint
No. Part name
9 High pressure switch for protection
10 Pressure switch for control
11 Stop valve for gas line
12 Stop valve for liquid line
13 Discharge thermistor
14 Pipe thermistor
15 Ambient thermistor

Units installation
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PMML0318A - P5415337
ENGLISH
13 UNITS INSTALLATION
13.1 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.
CAUTION
• Install the outdoor unit with sufcient clearance around it for
operation and maintenance as shown in the next gures.
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).
• For cleaning, use noninammable and nontoxic cleaning li-
quid. Use of inammable agent may cause explosion or re.
• Work with sufcient ventilation, since working in an enclosed
space may cause oxygen deciency. Toxic gas may be pro-
duced when cleaning agent is heated to high temperature by,
e.g., being exposed to re.
• Cleaning liquid shall be collected after cleaning.
• Pay attention not to clamp cables when attaching the service
cover to avoid electric shock or re.
CAUTION
• 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.
• Check to ensure that the foundation is at, level and suf-
ciently strong.
• Install the unit in a restricted area not accessible by the ge-
neral public
• Aluminum ns have very sharp edges. Pay attention to the
ns to avoid injury.
13
13.2 INSTALLATION SPACE
≥≥
≥≥ ≥≥

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PMML0318A - P5415337
Units installation
a) In case of front side and either of the sides are open (single unit) b) In case that surrounding wall exist (single unit)
100
500
1000
500
50
c) In case that upper side obstacles exist (single unit)
50
100
≤ 300
50
300
100
0 < L ≤ 1/2 H A ≥ 500
1/2 H < L ≤ H A ≥ 1000
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)
200
300
0 < L ≤ 1/2 H A ≥ 500
1/2 H < L ≤ H A ≥ 1000
≤ 300
f) In case that surrounding wall exist (serial units)
0 < L ≤ 1/2 A ≥ 500
1/2 H < L ≤ H A ≥ 1000 A
L
1000
0 < L ≤ 1/2 H A ≥ 200
1/2 H < L ≤ H A ≥ 350
g) Horizontal (multiple units) h) Vertical (multiple units)
0 < L ≤ 1/2 H A ≥ 100
1/2 H < L ≤ H A ≥ 200
≥ 1000
≥ 400
≥ 2000
≥ 250
400
≥ 250
≥ 250
400
250
≥ 250
Do not stack more than two units in height.
Close gap (*) to avoid recirculating discharge air ow.
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