Hitachi RAS-4HVRNS3E, RAS-10HNPE, RAS-10HNCE, RAS-8HNCE, RAS-8HNPE Installation And Operation Manual

...

UTOPIA IVX PREMIUM / IVX STANDARD Series RAS-(3-10)H(V)NP(1)E / RAS-(8-10)HNCE UTOPIA ES Series RAS-4H(V)RNS3E

INSTALLATION AND OPERATION MANUAL

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.

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.

 

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 Operation Manual is only related to Indoor Units FSN(H)(2/3/4)(E)(i)(k)(M) combined with Outdoor Units H(V)NP(1)E, HNCE and RAS-4H(V)RNS3E.



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

Three Phase - Trifásico - Dreiphasig -

Triphasé -Trifase - Trifásico

Trefaset - Driefasig - Trefasig - Tριφασικά

1~ 230V 50Hz 3N~ 400V 50Hz

Unit Unit Unit

RAS-3HVNP1E

RAS-4HVNP1E RAS-4HNP1E

RAS-5HVNP1E RAS-5HNP1E

RAS-6HVNP1E RAS-6HNP1E

RAS-8HNPE

RAS-10HNPE



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

Three Phase - Trifásico - Dreiphasig - Triphasé -Trifase - Trifásico

Trefaset - Driefasig - Trefasig - Tριφασικά

3N~ 400V 50Hz

RAS-8HNCE

RAS-10HNCE



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

Three Phase - Trifásico - Dreiphasig - Triphasé -Trifase -

Trifásico - Trefaset - Driefasig - Trefasig - Tριφασικά

1~ 230V 50Hz 3N~ 400V 50Hz

Unit Unit

RAS-4HVRNS3E RAS-4HRNS3E

INDEX ÍNDICE

PART I OPERATION

1. GENERAL INFORMATION

2. SAFETY

3. PRODUCT GUIDE

4. IMPORTANT NOTICE

5. TRANSPORTATION AND HANDLING

6. BEFORE OPERATION

7. REMOTE CONTROLLER

8. AUTOMATIC CONTROLS

9. BASIC TROUBLESHOOTING

PART II INSTALLATION

10. NAME OF PARTS

11. REFRIGERANT CYCLE

12. UNITS INSTALLATION

13. REFRIGERANT PIPING & REFRIGERANT CHARGE

14. DRAIN PIPING

15. ELECTRIC WIRING

16. TEST RUNNING

17. SAFETY SUMMARY & CONTROL DEVICE SETTING

18. TROUBLESHOOTING

1ª PARTE: FUNCIONAMIENTO

1. INFORMACIÓN GENERAL

2. SEGURIDAD

3. GUÍA DEL PRODUCTO

4. AVISO IMPORTANTE

5. TRANSPORTE Y MANIPULACIÓN

6. ANTES DEL FUNCIONAMIENTO

7. CONTROL REMOTO

8. CONTROLES AUTOMÁTICOS

9. RESOLUCIÓN DE PROBLEMAS BÁSICOS

2ª PARTE: INSTALACIÓN

10. NOMBRE DE LAS PIEZAS

11. CICLO DE REFRIGERANTE

12. INSTALACIÓN DE LAS UNIDADES

13. TUBERÍA Y CARGA DE REFRIGERANTE

14. TUBERÍA DE DESAGÜE

15. CABLEADO ELÉCTRICO

16. PRUEBAS DE FUNCIONAMIENTO

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

18. RESOLUCIÓN DE PROBLEMAS

INHALTSVERZEICHNIS INDEX

TEIL I – BETRIEB

1. ALLGEMEINE INFORMATIONEN

2. SICHERHEIT

3. PRODUKTÜBERSICHT

4. WICHTIGER HINWEIS

5. TRANSPORT UND BEDIENUNG

6. VOR DEM BETRIEB

7. FERNBEDIENUNG

8. AUTOMATISCHE STEUERUNG

9. GRUNDLEGENDE FEHLERBESEITIGUNG

TEIL II – INSTALLATION

10. TEILEBEZEICHNUNG

11. KÜHLKREISLAUF

12. GERÄTEINSTALLATION

13. KÄLTEMITTELROHRE UND KÄLTEMITTELMENGE

14. ABFLUSSLEITUNGEN

15. KABELANSCHLUSS

16. TESTLAUF

17. SICHERHEITSÜBERSICHT UND EINSTELLUNG DER STEUERGERÄTE

18. FEHLERBEHEBUNG

PARTIE I – FONCTIONNEMENT

1. INFORMATIONS GÉNÉRALES

2. SÉCURITÉ

3. GUIDE DU PRODUIT

4. REMARQUES IMPORTANTES

5. TRANSPORT ET MANIPULATION

6. AVANT L’UTILISATION

7. TÉLÉCOMMANDE

8. CONTRÔLES AUTOMATIQUES

9. DÉPANNAGE DE BASE

PARTIE II – INSTALLATION

10. NOMENCLATURE DES PIÈCES

11. CYCLE FRIGORIFIQUE

12. INSTALLATION DES UNITÉS

13. TUYAUTERIE DU FLUIDE FRIGORIGÈNE ET CHARGE DU FLUIDE FRIGORIGÈNE

14. TUYAUTERIE D’ÉVACUATION DES CONDENSATS

15. CÂBLAGE ÉLECTRIQUE

16. TEST DE FONCTIONNEMENT

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

18. DEPANNAGE

INDICE ÍNDICE

PARTE I FUNZIONAMENTO

1. INFORMAZIONI GENERALI

2. SICUREZZA

3. GUIDA DEL PRODOTTO

4. NOTA IMPORTANTE

5. TRASPORTO E MOVIMENTAZIONE

6. PROCEDURA PRELIMINARE

7. CONTROLLO REMOTO

8. CONTROLLI AUTOMATICI

9. RISOLUZIONE DEI PROBLEMI MINORI

PART II INSTALLAZIONE

10. NOMENCLATURA DEI COMPONENTI

11. CICLO DI REFRIGERAZIONE

12. INSTALLAZIONE DELLE UNITÀ

13. LINEA DEL REFRIGERANTE E CARICA DI REFRIGERANTE

14. LINEA DI DRENAGGIO

15. COLLEGAMENTI ELETTRICI

16. COLLAUDO DI PROVA

17. PRECAUZIONI PER LA SICUREZZA E IMPOSTAZIONI DEI DISPOSITIVI DI CONTROLLO

18. RISOLUZIONE DEI PROBLEMI

PARTE I FUNCIONAMENTO

1. INFORMAÇÃO GERAL

2. SEGURANÇA

3. GUIA DO PRODUTO

4. NOTA IMPORTANTE

5. TRANSPORTE E MANUSEAMENTO

6. ANTES DE ARRANCAR A UNIDADE

7. CONTROLO REMOTO

8. CONTROLOS AUTOMÁTICOS

9. RESOLUÇÃO DE PROBLEMAS BÁSICOS

PARTE II INSTALAÇÃO

10. NOME DAS PEÇAS

11. CICLO DE REFRIGERAÇÃO

12. INSTALAÇÃO DAS UNIDADES

13. TUBAGEM E CARGA DE REFRIGERANTE

14. TUBAGEM DE ESGOTO

15. LIGAÇÕES ELÉCTRICAS

16. PROVA DE FUNCIONAMENTO

17. SUMÁRIO DE SEGURANÇA E AJUSTE DE DISPOSITIVO DE CONTROLO

18. RESOLUÇÃO DE PROBLEMAS

INDHOLDSFORTEGNELSE INHOUDSOPGAVE

DEL I - BETJENING

1. GENEREL INFORMATION

2. SIKKERHED

3. PRODUKTVEJLEDNING

4. VIGTIG MEDDELELSE

5. TRANSPORT OG HÅNDTERING

6. FØR DRIFT

7. FJERNBETJENING

8. AUTOMATISK BETJENING

9. BASIS FEJLFINDING

DEL II- MONTERING

10. NAVNE PÅ DELE

11. KØLEKREDSLØB

12. MONTERING AF ENHEDER

13. KØLERØRSYSTEM OG PÅFYLDNING AF KØLEMIDDEL

14. AFLØBSRØR

15. ELEKTRISK LEDNINGSFØRING

16. TESTKØRSEL

17. OVERSIGT OVER INDSTILLINGER FOR SIKKERHEDS- OG KONTROLENHEDER

18. FEJLFINDING

DEEL I BEDIENING

1. ALGEMENE INFORMATIE

2. VEILIGHEID

3. PRODUCTGIDS

4. BELANGRIJKE MEDEDELING

5. TRANSPORT EN HANTERING

6. VOORDAT U HET SYSTEEM IN GEBRUIK NEEMT

7. AFSTANDSBEDIENING

8. AUTOMATISCHE BESTURING

9. ELEMENTAIRE PROBLEMEN OPLOSSEN

DEEL II INSTALLATIE

10. NAMEN VAN ONDERDELEN

11. KOUDEMIDDELCYCLUS

12. INSTALLATIE VAN DE UNITS

13. KOELMIDDELLEIDINGEN & KOELMIDDEL VULLEN

14. AFVOERLEIDING

15. ELEKTRISCHE BEDRADING

16. PROEFDRAAIEN

17. VEILIGHEIDSSAMENVATTING & BESTURINGSINRICHTING

18. PROBLEMEN OPLOSSEN

INNEHALLSFÖRTECKNING ΕΥΡΕΤΗΡΙΟ

DEL I ANVÄNDNING

1. ALLMÄN INFORMATION

2. SÄKERHET

3. PRODUKTGUIDE

4. VIKTIG ANMÄRKNING

5. TRANSPORT OCH HANTERING

6. FÖRE DRIFT

7. FJÄRRKONTROLL

8. AUTOMATIK KONTROLLANORDNING

9. GRUNDLÄGGANDE FELSÖKNING

DEL II INSTALLATION

10. DELARNAS NAMN

11. KYLMEDIETS CYKEL

12. INSTALLATION AV ENHETER

13. KYLRÖR & PÅFYLLNING AV KYLMEDIUM

14. DRÄNERINGSRÖR

15. ELEKTRISKA KABLAR

16. PROVKÖRNING

17. SÄKERHETSSAMMANFATTNING OCH SÄKERHETSINSTÄLLNINGAR

18. FELSÖKNING

ΜΕΡΟΣ Ι – ΛΕΙΤΟΥΡΓΙΑ

1. ΓΕΝΙΚΕΣ ΠΛΗΡΟΦΟΡΙΕΣ

2. ΑΣΦΆΛΕΙΑ

3. ΟΔΗΓΟΣ ΠΡΟΪΟΝΤΟΣ

4. ΣΗΜΑΝΤΙΚΗ ΠΑΡΑΤΗΡΗΣΗ

5. ΜΕΤΑΦΟΡΆ ΚΑΙ ΧΕΙΡΙΣΜΌΣ

6. ΠΡΙΝ ΤΗ ΛΕΙΤΟΥΡΓΙΑ

7. ΧΕΙΡΙΣΤΗΡΙΟ

8. ΑΥΤΟΜΑΤΕΣ ΛΕΙΤΟΥΡΓΙΕΣ

9. ΑΝΤΙΜΕΤΩΠΙΣΗ ΠΡΟΒΛΗΜΑΤΩΝ - ΒΑΣΙΚΑ

ΜΕΡΟΣ ΙΙ – ΕΓΚΑΤΑΣΤΑΣΗ

10. ΟΝΟΜΑΤΑ ΕΞΑΡΤΗΜΑΤΩΝ

11. ΚΥΚΛΟΣ ΨΥΞΗΣ

12. ΕΓΚΑΤΑΣΤΑΣΗ ΕΣΩΤΕΡΙΚΩΝ ΜΟΝΑΔΩΝ

13. ΣΩΛΗΝΩΣΕΙΣ ΨΥΚΤΙΚΟΥ & ΠΛΗΡΩΣΗ ΜΕ ΨΥΚΤΙΚΟ ΜΕΣΟ

14. ΣΩΛΗΝΩΣΕΙΣ ΑΠΟΧΕΤΕΥΣΗΣ

15. ΗΛΕΚΤΡΙΚΗ ΚΑΛΩΔΙΩΣΗ

16. ΔΟΚΙΜΑΣΤΙΚΗ ΛΕΙΤΟΥΡΓΙΑ

17. ΣΥΝΟΠΤΙΚΕΣ ΠΡΟΦΥΛΑΞΕΙΣ ΑΣΦΑΛΕΙΑΣ & ΡΥΘΜΙΣΕΙΣ ΣΥΣΚΕΥΩΝ ΕΛΕΓΧΟΥ

18. 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

PMML0317A rev.1 - 11/2013

ENGLISH

PART I - OPERATION

1.2 ENVIRONMENT-FRIENDLY UNITS

1 GENERAL INFORMATION

1.1 GENERAL NOTES

No part of this publication may be reproduced, copied, led or transmitted in any shape or form without the permission of HITACHI Air Conditioning Products Europe, S.A.U.

Within the policy of continuous improvement of its products, HITACHI Air Conditioning Products Europe, S.A.U. reserves the right to make changes at any time without prior notication and without being compelled to introducing them into products subsequently sold. This document may therefore have been subject to amendments during the life of the product.

HITACHI makes every effort to offer correct, up-to-date documentation. Despite this, printing errors cannot be controlled by HITACHI and are not its responsibility.

As a result, some of the images or data used to illustrate this document may not refer to specic models. No claims will be accepted based on the data, illustrations and descriptions included in this manual.

This range of HITACHI outdoor units uses environmentally-friendly R410A gas refrigerant, and the RoHS and Greed Dot regulations 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 installation, greater attention must be paid in certain situations requiring 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 following them, as your safety and that of others depends on it.

DA N G ER

• Thetextfollowingthissymbolcontainsinformationand instructionsrelatingdirectlytoyoursafetyandphysical wellbeing.

• Nottakingthese instructionsintoaccountcouldleadto serious,veryseriousorevenfatalinjuriestoyouandothersintheproximitiesoftheunit.

In the text following the danger symbol you can also nd information on safe procedures during unit installation.

CA U T IO N

• The text following this symbol contains information and instructions relating directly to your safety and physical wellbeing.

• Not taking these instructions into account could lead to minor injuries to you and others in the proximities of the unit.

• Not taking these instructions into account could lead to unit damage.

In the text following the caution symbol you can also nd information on safe procedures during unit installation.

NO T E

• The text following this symbol contains information or instructions that may be of use or that require a more thorough explanation.

• Instructions regarding inspections to be made on unit parts or systems may also be included.

Product guide

PMML0317A rev.1 - 11/2013

3 PRODUCT GUIDE

DA N G ER

• 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reTurnOFFthemainswitch,putoutthere atonceandcontactyourservicecontractor.

CA U T IO N

• 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 instructions to handle properly and safely this appliance.

• Children should be supervised to ensure that they do not play with the appliance.

NO T E

It is recommended to ventilate the room every 3 or 4 hours.

2.2 ADDITIONAL INFORMATION ABOUT SAFETY

3.1 CLASSIFICATION OF IVX OUTDOOR UNITS MODELS

Unit type (Outdoor unit): RAS

Position-separating hyphen (xed)

Compressor power (HP): 3, 4, 5, 6, 8, 10

H = Heat pump

V = Single phase unit (1~ 230V 50Hz)

- = Three phase unit (3N~ 400V 50Hz)

N = R410A refrigerant

P: Premium series C: Standard series

- = Series 0 1 = Series 1

E = Made in Europe

XXX – XX H (X) N X (X) X

3.2 CLASSIFICATION OF ES OUTDOOR UNITS MODELS

Unit type (Outdoor unit): RAS

Position-separating hyphen (xed)

Compressor power (HP): 4

H = Heat pump

V = Single phase unit (1~ 230V 50Hz)

- = Three phase unit (3N~ 400V 50Hz)

R = Inverter system

N = R410A refrigerant

S = ES series

Series

E = Made in Europe

XXX – XX H (X) R N S 3 X

Important notice

PMML0317A rev.1 - 11/2013

ENGLISH

4 IMPORTANT NOTICE

CA U T IO N

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

Outdoor Unit Model Refrigerant

Maximum Allowable

Pressure (MPa)

High Pressure Switch

Cut-out Value (MPa)

RAS-(3-10)H(V)NP(1)E

RAS-(8-10)HNCE

R410A 4.15 4.00 ~ 4.10

RAS-4H(V)RNS3E R410A 4.15 4.00 ~ 4.10

• 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 conditioning for human beings. For use in other applications, please contact your HITACHI dealer or service contractor.

• 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 codication to conrm the main characteristics of your system.

• Signal words (DANGER, WARNING and CAUTION) are used to identify levels of hazard seriousness. Denitions 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

Cooling

Mode

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

Outdoor 46 ºC 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-4H(V)RNS3E

(**) -10ºC RAS-4H(V)RNS3E

• 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.

DA N G ER

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 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.

Transportation and handling

PMML0317A rev.1 - 11/2013

NO T E

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

NO T E

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

DA N G ER

• 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.

6 BEFORE OPERATION

CA U T IO N

• 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.

7 REMOTE CONTROLLER

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.

5 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

Gross

Weight

(kg)

RAS-3HVNP1E 77

RAS-(4-6)H(V)NP1E 116

RAS-4H(V)RNS3E 78

Model

Gross

Weight

(kg)

RAS-8HNPE

152

RAS-8HNCE

RAS-10HNPE

154

RAS-10HNCE

RAS-3HVNP1E RAS-(4-6)H(V)NP1E

RAS-4H(V)RNS3E RAS-(8-10)HNPE

RAS-(8-10)HNCE

0.7 -1.0 m

> 60º

Automatic controls

PMML0317A rev.1 - 11/2013

ENGLISH

8 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.

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 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

Can be setting than 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 xed horizontally.

9 BASIC TROUBLESHOOTING

CA U T IO N

• 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 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 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 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 operating 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 no. on Liquid Crystal Display

NO T E

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

Name of parts

PMML0317A rev.1 - 11/2013

PART II - INSTALLATION

10 NAME OF PARTS

10.1 Example of RAS-3HVNP1E / RAS-4H(V)RNS3E

No. Part Name

1 Compressor 2 Accumulator 3 Heat exchanger 4 Propeller fan 5 Fan motor 6 Strainer 7 Distributor 8 Reversing valve

Micro-computer control expansion

valve 10 Solenoid valve for hot gas 11 Stop valve for gas line

No. Part Name

12 Stop valve for liquid line 13 Check Joint 14 Electrical box 15 High pressure switch for protection

Sensor for refrigerant pressure (RAS-

3HVNP1E only) 17 Pressure switch for control 18 Silencer 19 Crankcase heater 20 Vibration absorbing rubber (3pcs.) 21 Air outlet 22 Air inlet

7T143458

Name of parts

PMML0317A rev.1 - 11/2013

ENGLISH

10.2 Example of RAS-(4-6)H(V)NP1E

No. Part Name

1 Compressor 2 Heat exchanger 3 Propeller fan (2pcs.) 4 Fan motor (2pcs.) 5 Strainer 6 Distributor 7 Reversing Valve

Micro-computer control expansion valve

9 Solenoid valve

10 Check valve

11 Stop valve for gas line

12 Stop valve for liquid line

No. Part Name

13 Receiver 14 Accumulator 15 Check joint 16 Electrical box 17 High pressure switch for protection 18 Sensor for refrigerant pressure 19 Pressure switch for control 20 Silencer 21 Crankcase heater 22 Vibration absorbing rubber (4pcs.) 23 Air outlet 24 Air inlet

7T143459

Refrigerant cycle

PMML0317A rev.1 - 11/2013

11 REFRIGERANT CYCLE



Example of RAS-4H(V)NP1E:

7S138311

Mark Part name

1 Compressor 2 Heat exchanger 3 Accumulator 4 Receiver 5 Micro-computer control expansion valve 6 Reversing valve 7 Solenoid valve for gas bypass 8 Strainer

9 Distributor 10 Check joint 11 High pressure switch for protection 12 Sensor for refrigerant pressure 13 Stop valve for gas line 14 Stop valve for liquid line 15 Check valve 16 Silencer 17 Pressure switch for control



Example of RAS-4H(V)RNS3E:

7S136195

No. Part name

1 Compressor 2 Heat exchanger 3 Accumulator 4 Micro-Computer control expansion valve 5 Reversing valve 6 Solenoid valve for gas bypass 7 Strainer 8 Distributor

9 Check joint 10 High pressure switch for protection 11 Pressure switch for control 12 Stop valve for gas line 13 Stop valve for liquid line 14 Silencer

R410A 4.15 MPa

Refrigerant ow

or cooling

Refrigerant ow

for heating

Connection by

are nut

Connection by

welding

Gas refrigerant

Leakage test

pressure

Mark Part name

A Gas line refrigerant piping connection B Liquid line refrigerant piping connection C Outdoor unit D Ambient thermistor E Discharge gas thermistor

F Pipe thermistor

Units installation

PMML0317A rev.1 - 11/2013

ENGLISH

12 UNITS INSTALLATION

12.1 OUTDOOR UNITS INSTALLATION

12.1.1 Installation space

(Unit: mm)

Blocked in Inlet Side

Upper Side Open

Single Installation Multiple Installation (Two units or more)

200 or more of the back space is acceptable when the right and left sides are open. Dimensions in ( ) shows numbers especially for RAS-3HVNP1E.

Allow 100 mm of space between units. Leave open both right and left sides. Dimensions in ( ) shows numbers especially for RAS-3HVNP1E.

Be sure to use the fan direction guide. Leave open both right and

left sides.

Be sure to use the fan direction guide. Allow 100 mm of space between units.

Leave open both right and left sides.

CA U T IO N

• 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

CA U T IO N

• 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 liquid. Use of inammable agent may cause explosion or re.

• Work with sufcient ventilation, for working in an enclosed space may cause oxygen deciency. Toxic gas may be produced 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.

CA U T IO N

• Keep clearance between the units of more than 100mm, 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 general public

• Aluminium ns have very sharp edges. Pay attention to the ns to avoid injury.

Units installation

PMML0317A rev.1 - 11/2013

Blocked in Inlet Side

Upper Side Blocked

Single Installation Multiple Installation (Two units or more)

100 mm or more of the side space is acceptable on the service cover side.

Allow 100 mm of space between units. Leave open both right and left sides..

Leave open both right and left sides.

Be sure to use the fan direction guide. Allow 100 mm of space between units. Leave open both right and left sides. No more than 2 units for multiple installation.

The length A is as shown in the following table:

L A 0 < L ≤ 1/2H 600 or greater 1/2H < L≤ H 1400 or greater

When L > H use a base for outdoor unit to make L ≤ H.

Close the base not to allow the outlet air bypassed.

Outlet Side Blocked

Upper Side Open

Single Installation Multiple Installation (Two units or more)

Allow 100 mm of space between units. Both right and left sides shall be open.

Be sure to use the fan direction guide. Leave open both right and left sides.

Be sure to use the fan direction guide. Allow 100 mm of space between units. Leave open both right and left sides. No more than 2 units for multiple installation.

The length A is as shown in the following table:

L A 0 < L ≤ 1/2H 600 or greater 1/2H < L≤ H 1400 or greater

When L > H use a base for outdoor unit to make L ≤ H.

Close the base not to allow the outlet air bypassed.

Units installation

PMML0317A rev.1 - 11/2013

ENGLISH

12.1.2 Installation place provision



Concrete Foundation

1 Foundation could be on at and is recommended be 100-300

mm higher than ground level.

2 Install a drainage around foundation for smooth drain 3 When installing the outdoor unit x the unit by anchor bolts

of M10.

4 When installing the unit on a roof or a veranda, drain water

sometimes turns to ice on a cold morning. Therefore, avoid draining in an area that people often use because it is slippery.

* Space for downward piping space

Nº Description



Outdoor Unit



Cut this portion of bolt If not, it’s difcult to remove Service Cover



Mortar Hole (Ø100xDepth 150)



Anchor Bolt M10 (Ø12.5 Hole)



Drainage (Wide 100xDepth 150)



Drainage



Vibration-proof rubber

NO T E

When the mark * dimension is secured, piping work from bottom side is easy without interference of 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 eld supplied frame, use metal plates to adjust the frame width for stable installation as shown in below gure.

70 mm Base width of outdoor unit

Outdoor unit is unstable

Frame

60mm

Frame with (Field supplied)

INCORRECT

CORRECT

Outdoor unit is stable

70 mm

Base width of outdoor unit

Frame

100mm or more

Metal plate

Recommended Metal Plate Size

- (Field-Supplied) Material: Hot-Rolled Mild Steel

- Plate (SPHC) Plate Thickness: 4.5 T

Units installation

PMML0317A rev.1 - 11/2013



Fix Unit to the wall

1. Fix the Unit onto the wall as the gure indicates. (eld supplied stay)

2. Ensure the foundation so that avoid the deforming and noise.

3. In case of prevention from vibration transfer to the building, use rubber Mat.

Rubber Material (Field Supplied)

Mark Dimension

Model

RAS-3HVNP1E

RAS-4H(V)RNS3E

RAS-(4-10)H(V)NP(1)E

A (mm) 529 1109



Suspended unit

1. Suspend the unit as the drawing indicates.

2. Ensure that wall can resist the Outdoor unit weight indicated in specication label plate.

3. It is recommended to select each foot support to bear the full weight of the unit (in order to consider stress fatigue applied when unit is working too).

Wall bracket (*)

Anchor Bolts (*)

(*) Field supplied

CAUTION

Pay attention to the following for installation:

• Installation shall ensure that outdoor unit will not incline, vibrate, make noise or fall down by a blast of wind or in an earthquake. Calculate quake-resistance strength to ensure that installation is strong enough against falling. Fix the unit with wires (eld supplied) when installing in a location without walls or windbreak and likely exposed to a blast of wind.

• To use a vibration-proof mat, x four places to the front and back.



Installing location where the unit will be exposed to strong wind.

Follow the instructions below to install on the rooftop or a location without surrounding buildings, where strong wind is expected against the product.

1. Choose a location where the outlet or inlet side of the product will not be exposed to strong wind.

2. When the outlet is exposed to strong wind: Direct strong wind may cause lack of air ow and adversely affect to the operation.

CAUTION

Excessive strong wind against the outdoor unit outlet may cause inverse rotation and damage the fan and motor.

Units installation

PMML0317A rev.1 - 11/2013

ENGLISH



Air ow guide wind guard and snow protection hood

RAS-3HVNP1E/RAS-4H(V)RNS3E

Optional parts Model

Air ow guide AG-335A

1 Air ow guide 2 Wind Guard 3 Snow protection hood

Wind guard WSP-335A

Snow protection hood

Zinc plate

Air outlet ASG-NP335F Air inlet of rear side ASG-NP80B Air inlet of side face ASG-NP80L

Stainless plate (SUS304)

Air outlet ASG-NP335F52 Air inlet of rear side ASG-NP160BS2

Air inlet of side face ASG-NP160LS2

1. Fixing screw (Accessories).

2. Rear suction hood

3. Wire rope (Optional. For overturning protection)

4. Air discharge grille

5. Left suction hood

6. Air discharge hood

A. Left side

B. Front side

C. Rear side

RAS-(4-6)H(V)NPE / RAS-(8-10)HN(P/C)E

Optional parts Model

Air ow guide AG-335A X 2

1 2

1 Air ow guide 2 Wind Guard 3 Snow protection hood

Wind guard WSP-335A X 2

Snow protection hood

Zinc plate

Air outlet ASG-NP335F X 2 Air inlet of rear side ASG-NP280B Air inlet of side face ASG-NP280L

Stainless plate

(NSSC 180)

Air outlet ASG-NP335FS 2X 2 Air inlet of rear side ASG-280BS2

Air inlet of side face ASG-NP280LS2

1. Left suction hood

2. Fixing screw (Accessories)

3. Rear suction hood Upper side

4. Wire rope (Optional. For overturning protection)

5. Rear suction hood Lower side

6. Air discharge hood

7. Air discharge grille

A. Front side

B. Left side

C. Rear side

Refrigerant piping & refrigerant charge

PMML0317A rev.1 - 11/2013

13 REFRIGERANT PIPING & REFRIGERANT CHARGE

13.1 PIPING MATERIALS

1 Prepare locally-supplied copper pipes. 2 Select the piping size with the correct thickness and correct

material which can have sufcient 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.

NO T E

• 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.

CA U T IO N

• 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 tting 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

13.2 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

Indoor unit

Fire-Proof

Section Treatment

Do not x the refrigerant piping directly with the metal ttings (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

Refrigerant piping & refrigerant charge

PMML0317A rev.1 - 11/2013

ENGLISH

13.3 PIPING CONNECTION FOR OUTDOOR UNIT

1 The pipes can be connected from 4 directions. Make holes in

the piping cover or cabinet for taking out pipes. Take the piping cover away from the unit, and make holes by cutting along the guideline at the rear of the cover or punching with a driver. Remove the burr with a cutter, and place a insulation (eld supplied) to protect cables and pipes.

(picture as example)

Nº Description



Rear side piping work



Pipe Cover



Right side piping work



Bottom side piping work (Knock out hole)



Front side piping work



Piping work



Stop Valve



Removing Direction for Service Cover

CA U T IO N

Notes to open/close the service cover:

• Remove the screws following the instructions to the above gure.

• Slowly press down the cover.

NOTE

Hold the cover with a hand to remove screws as the cover may fall down.

Service cover

Hook (three places): two fans Hook (two places): one fan

(picture as example)



For the front and side piping

Front piping hole

Side piping hole

To use racking or conduit tubes, check the size and remove part following the slit.

NO T E

Place insulation (eld supplied) to protect cables and pipes from being damaged by plate edges.



For the downward piping

Gas piping

Knock-out hole

Bottom base

Cables

Liquid piping

NO T E

Cables shall not contact directly to the pipes.



For the rear side piping

Rear Cover

NO T E

Remove the rear pipe cover under the rear cover and remove

part following the slit.

Refrigerant piping & refrigerant charge

PMML0317A rev.1 - 11/2013

2 Mount the piping cover in order to avoid water entering into

the unit. Seal the holes where pipes and wires are inserted, by using a insulation (eld-supplied).

3 If the eld-supplied piping is connected with stop valves di-

rectly, it is recommended use a tube bender.

4 Check to ensure that the stop valves are closed completely

before connecting pipes.

5 Connect the eld supplied refrigerant pipes to the indoor unit

and outdoor unit. Apply the oil thinly at the seat are nut and pipe before tightening.

The required tightening torque is as follows:

Pipe Size Tightening Torque (Nm)

Ø 6.35 mm (1/4) 20

Ø 9.52 mm (3/8) 40 Ø 12.70 mm (1/2) 60 Ø 15.88 mm (5/8) 80 Ø 19.05 mm (3/4) 100

6 After connecting the refrigerant piping, seal the open space

between knockout hole and refrigerant pipes by using insulation material.

Unit Side

Nº Description



Insulation Material



Insulation Material



Field Supplied



Insulation Material

7 Operation of stop valve should be performed according to the

gure below.

Close before shipment

Outdoor unit stop valve

Spindle Type Ball Type

Liquid

RAS-(4-10)H(V)NP(1)E

RAS-(8/10)HNCE

Liquid and Gas RAS-3HVNP1E

RAS-4H(V)RNS3E

Gas

RAS-(4-10)H(V)NP(1)E

RAS-(8/10)HNCE

(a)



Spindle valve



Flare nut



Cap



Check joint for service port

Tightening Torque (Nm)

   

Liquid valve 7-9

10HP: 60

33-42

14-18

Gas valve 9-11

8/10HP: 100

3HP: 33-42

4/5/6HP: P=20-25 S=33-42

8/10HP:20-25

Spindle Type Ball Type

(a) (b)

Nº Description Remarks



Cap



Allen wrench Hex 4 mm



Refrigerant Piping Field Supplied



Flare nut



Refrigerant Pressure To Outdoor Unit



Seat Surface Fully closed position



Check Joint Only the charging those can be connected



Charge port cap



O-Ring Rubber



Spindle valve

Open – Counterclockwise Close – Clockwise

Shaft



Stopper

(a)

Closed

This valve is opened or closed with rotating 90 degrees at the ball valve part. Rotate the shaft until the pin touches the stopper. Do not apply the extra force. Use a slotted screwdriver to control

the shaft. Do not leave the ball valve partly open

(b)

Opened

Do not apply two spanners at this position. If applied, leakage will occur.

Stop valve (Spindle type)

Flare nut

Use two spanners here for pipe connection

Do not work with two spanners here.

Refrigerant leakage shall occur

Position to apply spanners

Don not apply two spanners work here

Spindle type Ball type

CA U T IO N

• At the test run, fully open the spindle and ball stop valve.

• If not fully opened, the devices will be damaged.

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

• Do not loosen the stop ring. If the stop ring is loosened, it is dangerous since the spindle will hop out.

• An excess or a shortage of refrigerant is the main cause of trouble to the units. Charge the correct refrigerant quantity according to the description of label at the inside of service cover.

• Check for refrigerant leakage in detail. If a large refrigerant leakage occurs, it will cause difculty with breathing or harmful gases would occur if a re was being used in the room.

Refrigerant piping & refrigerant charge

PMML0317A rev.1 - 11/2013

ENGLISH



Evacuation and refrigerant charge

- 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 are nut connection, by using nitrogen gas to increase the pressure at 4.15 MPa for outdoor units inside of the eld-supplied 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.

Thermal insulation

Gas line

Cover the are nut and union of the piping connection with thermal insulation

Liquid line

Liquid stop valve

Gas stop valve

Nitrogen tank

(For air Tight test & Nitrogen blow during brazing)

Vacuum cylinder

Ma nif old gauge

Outdoor unit

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

Example of Evacuation and Refrigerant Charge.

13.4 REFRIGERANT PIPING LENGTH

The refrigerant piping between the indoor unit and the outdoor unit should be designed using the following table.



Piping length specication for header branch

(Example for header branch)

1 indoor unit system

(O.U. IVX Series from 3 to 10 HP

and O.U. ES Series 4 HP)

2 indoor units system

(O.U. IVX Series from 3 to 10 HP

and O.U. ES Series 4 HP)(*)

3 indoor units system

(O.U. IVX Series from 4 to 10 HP)(*)

4 indoor units system (O.U. IVX Series from 4 to 10 HP)(*)

(pictures are as example) (*) Connections including Indoor Units 8 and 10 HP are not possible

Refrigerant piping & refrigerant charge

PMML0317A rev.1 - 11/2013



Maximum refrigerant piping length

IVX Premium series

(m)

Outdoor Unit 3HP 4HP 5HP 6HP 8HP 10HP

Maximum piping Length be-

tween the outdoor unit and

the farthest indoor unit

Actual Length (L) 50 75 100

Equivalent Length (EL) 70 95 125

Total piping length

2 units (A+B+C) 60 85 100 115

3 units (A+B+C+D) -- 95 100 130

4 units

(A+B+C+D+E+F+G+)

-- 95 100 145

Maximum piping line

after rst branch

2 and 3 units (B, C, D) 10 15

4 units

(B+D, B+E, C+F, C+G)

-- 10 15

Main piping length A A > B, C, D, E, F, G

Maximum height difference

Outdoor / Indoor (H)

(Outdoor Unit is Higher / Lower.)

30 / 20

Maximum height difference Indoor / Indoor 10

Maximum height difference:

branch pipe/Indoor (2, 3 and 4 units system)

branch pipe/branch pipe (4 units system)

(B-C) / (B-D) / (C-D) / (C+G)-(B+E) / (C+G)-(B+D)

(C+F)-(B+E) / (C+F)-(B+D)

< 8

IVX Standard series

(m)

Outdoor Unit 8HP 10HP

Maximum piping Length

between the outdoor unit

and the farthest indoor

unit

Actual Length (L) 100

Equivalent Length (EL) 125

Total piping length

2 units (A+B+C) 100 115

3 units (A+B+C+D) 100 130

4 units

(A+B+C+D+E+F+G+)

100 145

Maximum piping line

after rst branch

2 and 3 units (B, C, D) 15

4 units

(B+D, B+E, C+F, C+G)

Main piping length A A > B, C, D, E, F, G

Maximum height difference

Outdoor / Indoor (H)

(Outdoor Unit is Higher / Lower.)

30 / 20

Maximum height difference Indoor / Indoor 3

Maximum height difference:

branch pipe/Indoor (2, 3 and 4 units system)

branch pipe/branch pipe (4 units system)

(B-C) / (B-D) / (C-D) / (C+G)-(B+E) / (C+G)-(B+D)

(C+F)-(B+E) / (C+F)-(B+D)

< 8

Refrigerant piping & refrigerant charge

PMML0317A rev.1 - 11/2013

ENGLISH

ES series

(m)

Outdoor Unit 4HP

Maximum piping Length between the outdoor unit and the indoor unit

Actual Length (L) 50 Equivalent Length (EL) 70

Maximum height difference Outdoor / Indoor (H) (Outdoor Unit is Higher / Lower)

30 /20

Maximum height difference Indoor / Indoor 0.5 Maximum total piping length Twin (A + B + C) 60 Maximum piping line after branch Twin (B, C) 10 (B-C) < 8

NO T E

• The liquid piping and the gas piping must be of the same piping length and run along the same route.

• Install the branch piping as much as possible near the indoor units

• Install Multikits at the same horizontal level.



Example for line branch (Only allowed for IVX series)

OU 3 HP 4 HP 5 HP 6 HP 8 HP 10 HP

IU quantity allowed

IVX Premium 2 -3 2 - 5 2 - 6 2 - 8

IVX Standard -- - - - 2 - 4

1 2 4 53

(picture is as example)

Connections including Indoor Units 8 and 10 HP are not possible



Maximum refrigerant piping length (Line branch system)

IVX Premium series

(m)

Outdoor Unit 3HP 4HP 5HP 6HP 8HP 10HP

Maximum piping length between the outdoor unit and the farthest

indoor unit

Actual Length (L1) 50 75 100

Equivalent Length (EL) 70 95 125

Maximum piping length from rst branch to each indoor unit (L2) 20 30 40

Maximum piping length from branch to indoor unit (L3) 10 15

Maximum piping length L4 + (L3

+L32+L33....) 60 95 100 145

Maximum height difference

Outdoor / Indoor (H)

(Outdoor Unit is Higher / Lower.)

30 / 20

Maximum height Difference Indoor / Indoor 10

Maximum height difference:

Branch pipe/Indoor

Branch pipe/branch pipe

Refrigerant piping & refrigerant charge

PMML0317A rev.1 - 11/2013

IVX Standard series

(m)

Outdoor Unit 8HP 10HP

Maximum piping length

between the outdoor unit

and the farthest indoor

unit

Actual Length (L1) 100

Equivalent Length (EL) 125

Maximum piping length from rst branch to each indoor unit (L2) 25

Maximum piping length from branch to indoor unit (L3) 15

Maximum piping length L4 + (L3

+L32+L33....) 100 145

Maximum height difference

Outdoor / Indoor (H)

(Outdoor Unit is Higher / Lower.)

30 / 20

Maximum height Difference Indoor / Indoor 3

Maximum height difference:

Branch pipe/Indoor

Branch pipe/branch pipe

13.4.1 Refrigerant piping size and multikit/distributor

Select the piping connection sizes according to the following procedures:

• Between outdoor unit and branch pipe: Select the same pipe connection size as the pipe size of the outdoor unit.

• Between branch pipe and indoor unit: Select the same pipe connection size as the pipe size of the indoor unit.

1 indoor unit system

(mm)

Outdoor Unit HP

Pipe Size (L)

Gas Liquid

2 / 2.5 Ø12.70 Ø6.35

3 - 6 Ø15.88 Ø9.52

8 Ø25.40 Ø9.52

10 Ø25.40 Ø12.70

2 indoor units system

(mm)

Outdoor Unit HP

Pipe Size (A) Branch pipe

Gas Liquid IVX Series ES Series

2 / 2.5 Ø12.70 Ø6.35 TE-03N1 -

3 / 4 Ø15.88 Ø9.52

3HP:TE-03N1 4HP:TE-04N1

4 HP: TE-04N1

5 / 6 Ø15.88 Ø9.52 TE-56N1- -

8 Ø25.40 Ø9.52 TE-08N -

10 Ø25.40 Ø12.70 TE-10N -

(mm)

Indoor Unit capacity

Pipe Size (B, C)

Gas Liquid

≤ 1.5 HP Ø12.70 Ø6.35

1.8/2.0HP Ø15.88 Ø6.35 ≥ 2.3 HP Ø15.88 Ø9.52

Connections including Indoor Units 8 and 10 HP are not

possible

Refrigerant piping & refrigerant charge

PMML0317A rev.1 - 11/2013

ENGLISH

3 indoor units system (Only allowed for IVX series)

(mm)

Outdoor Unit HP

Pipe Size (A) Header Branch

Gas Liquid IVX Series

4 / 5 / 6 Ø15.88 Ø9.52 TRE-46N1

8 Ø25.40 Ø9.52 TRE-812N1

10 Ø25.40 Ø12.70 TRE-812N1

(mm)

Indoor Units capacity

Pipe Size (B, C, D)

Gas Liquid

≤ 1.5 HP Ø12.70 Ø6.35

1.8/2.0HP Ø15.88 Ø6.35

≥ 2.3 HP Ø15.88 Ø9.52

Connections including Indoor Units 8 and 10 HP are

not possible

4 indoor units (Only allowed for IVX series)

1 2

(mm)

Outdoor

Unit HP

Pipe Size (A)

Branch line



(1) In case that total pipe length (A+B+D or A+B+E or A+C+F or A+C+G) exceeds of 70m in 8 HP unit, please use a Ø12.7 pipe as a liquid pipe.

(2) When is used Multi-kit model QE-812N1 it is not necesary the multi.kit 2.

Gas Liquid IVX Series

4 / 5 / 6 Ø15.88 Ø9.52

4HP: TE-04N1

5/6HP: TE-56N1

8 Ø25.40 Ø9.52

(1)

TE-08N

QE-812N1

(2)

10 Ø25.40 Ø12.70

TE-10N

QE-812N1

(2)

(mm)

Branch line



Indoor Unit

capacity

Pipe Size (D,E,F,G)

Branch pipe after total

capacity of indoor units

1+2 or 3+4

Pipe Size

(B,C)

IVX Series

Gas Liquid

Gas Liquid ≤ 1.5 HP Ø12.70 Ø6.35

≤ 1.5 HP Ø12.70 Ø6.35 TE-03N1 1.8/2.0 HP Ø15.88 Ø6.35

from 1.8 to 2.0 HP Ø15.88 Ø6.35 TE-03N1 ≥ 2.3 HP Ø15.88 Ø9.52

≥ 2.3 HP Ø15.88 Ø9.52

<4: TE-03N1

=4HP: TE-04N1

≥ 5HP: TE-56N1

Connections including Indoor Units 8

and 10 HP are not possible

Refrigerant piping & refrigerant charge

PMML0317A rev.1 - 11/2013

Line branch system (Only allowed for IVX series)

(mm)

Multi Kit Model A

Multi Kit Model B

Outdoor

Unit HP

Pipe Size (C, D) (L4)

IVX Series

Gas Liquid

3 / 4 / 5 / 6 Ø15.88 Ø9.52 E-102SN(2/3) E-102SN(2/3)

8 Ø25.40 Ø9.52

(1)

E-162SN(2/3) E-102SN(2/3)

10 /12 Ø25.40 Ø12.70 E-162SN(2/3) E-102SN(2/3) (1) In case that pipe length exceeds 70m in 8 HP, please use a

Ø12.7 pipe as a liquid pipe.

Indoor Unit capacity

Pipe Size (L3)

Gas Liquid

≤ 1.5 HP Ø12.70 Ø6.35

from 1.8 to 2.0 HP Ø15.88 Ø6.35

≥ 2.3 HP Ø15.88 Ø9.52

Connections including Indoor Units 8 and 10 HP are not possible

13.4.2 System Installation (examples)



Height Difference Between Indoor Units and Distributor

It is recommended to install all indoor units at the same height. When the height difference between the indoor units due to building construction is necessary, this should be less than the value indicated in the gure

ื

10m (IVX-P)

3m (IVX-C)

ืืืื

20m

ืืืื

30m

IU1

IU4

IU3

IU2

OU1

ื

(ื

6m)

O.U higher

O.U lower

10m (IVX-P)

3m (IVX-C)

ื

ืื

High difference O.U/IU

O.U higher ≤30m

O.U lower ≤20m



Installing Distributor

1 Install the Distributor supplied by HITACHI on request.

A tee can not be installed instead of a branch pipe.

2 Installing the distributor

Fix the branch pipe horizontally to the pillar, wall or ceiling. Piping must not be xed rigidly to the wall as thermal expansion and contraction can cause pipe fracture.

Horizontal

To Indoor Unit

To Outdoor unit

Vertical

To Indoor unit

Fixing the branch pipe to the surface of pillar or wall

Horizontal

Fixing the branch pipe to ceiling or beam

(pictures as example)

NO T E

Fix the piping from outside of insulation or inserting absorber between the pipe and a xing metal.

3 Correct position of distributor (available also for quad instal-

lation)

• This is the correct position:

G r ea t e r than 0.5 m

Main pipe

Refrigerant direction

Branch pipe

Main pipe

Refrigerant direction

Down

• This is wrong position.

Main pipe

Refrigerant direction

Branch pipe

Refrigerant direction

Branch pipe

Main pipe

(pictures as example)

Refrigerant piping & refrigerant charge

PMML0317A rev.1 - 11/2013

ENGLISH

4 Correct position of Triple Branch Pipe (Standard series only).

• Install the header horizontally

Sample: Triple Branch pipe

Gas piping

Liquid piping

13.4.3 Brazing work

CA U T IO N

• Use nitrogen gas for blowing during pipe brazing. If oxygen, acetylene or uorocarbon gas is used, it will cause an explosion or poisonous gas.

• A lot of oxidation lm will occur inside of tubes if no nitrogen gas blowing is performed during brazing work. This lm will be ecked off after operation and will circulate in the cycle, resulting in clogged expansion valves, etc. This will cause bad inuence 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 0.05 Mpa. If a excessively high pressure is applied to a pipe, it will cause an explosion.

13.4.4 Refrigerant charge

CA U T IO N

• Do not charge OXYGEN, ACETYLENE, or other ammable 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 are-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 insufcient charging could cause a compressor failure.

• Check for refrigerant leakage in detail. If a large refrigerant leakage occurred, it would cause difculty with breathing or harmful gases would occur if a re were being used in the room.

• If the are nut is tigthened too hard, the are nut may crack after a long time and cause refrigerant leakage.

13.6 REFRIGERANT CHARGING QUANTITY

When the pressure is measured, use the check joint of gas stop valve (A), and use the check joint of liquid piping (B) in the gure below.

At that time, connect the pressure gauge according to the following table because of high pressure side and low pressure side changes by operation mode.

Cooling

Operation

Heating

Operation

Check Joint for Gas Stop Valve “A” Low Pressure High Pressure

Check Joint for Piping “B” High Pressure Low Pressure

Check Joint for Liquid Stop Valve “C”

Exclussive for Vacuum Pump

and Refrigerant Charge

NO T E

Be careful that refrigerant and oil do not splash to the electrical parts at removing the charge hoses.

The gas stayed at O-ring sc r e w p ar t i s o p en e d and may make soun d whe n remov ing the cap. Ho we ver , it is no t g as leakage.

13.5 CAUTION OF THE PRESSURE BY CHECK JOINT

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.

CA U T IO N

• When charging refrigerant accurately measure refrigerant to be charged.

• Overcharging or undercharging of refrigerant can cause compressor trouble

• In case of actual piping length less than 5 m, consult your distributor.

Refrigerant piping & refrigerant charge

PMML0317A rev.1 - 11/2013

13.6.1 Refrigerant charge before shipment (W0 (kg))

W0 is the outdoor unit refrigerant charge before shipment explained before, and it’s shown in the following table:

IVX Premium series

Model

Refrigerant charge

before shipment

(W0 (kg))

Additional refrigerant charge (P)

(g/m)

Maximum

additional

charge

(kg)

RAS-3HVNP1E 2.3 40 1.2 RAS-4HVNP1E 4.1 60 3.9 RAS-5HVNP1E 4.2 60 3.9 RAS-6HVNP1E 4.2 60 3.9

RAS-4HNP1E 4.1 60 3.9 RAS-5HNP1E 4.2 60 3.9 RAS-6HNP1E 4.2 60 3.9

RAS-8HNPE 5.7 (1) 10.3

RAS-10HNPE 6.2 (1) 12.1

(1) need to be calculate

IVX Standard series

Outdoor unit

Refrigerant charge

before shipment

(W0 (kg))

Additional refrigerant

charge

(g/m)

Maximum additional

charge

(kg)

RAS-8HNCE 5.7 (1) 10.3

RAS-10HNCE 6.2 (1) 12.1

(1) need to be calculate

ES series

Outdoor unit

Refrigerant charge

before shipment

(W0 (kg))

Additional

refrigerant

charge

(g/m)

Maximum additional

charge

(kg)

RAS-4HVRNS3E 2.9 40 1.6

RAS-4HRNS3E 2.9 40 1.6

CA U T IO N

• When charging refrigerant, measure the amount precisely.

• Overloading or underloading of refrigerant may cause compressor problems.

• If the actual piping length is less than 5 m consult your dealer.

Additional refrigerant charge calculation method

For all UTOPIA units RAS-(3-6)H(V)NP(1)E and RAS-4H(V)RNS3E

Use the following formula:: W1 = (L-30) x P

For UTOPIA units RAS-(8-10)HNPE and RAS-(8-10) HNCE

The additional refrigerant charge for RAS-(8-10)HNPE and RAS(8-10)HNCE units must be calculated by multiplying the total piping length of each diameter per its calculation factor according to the following table. The result is the additional refrigerant charge subtracting 1.6 for 8 HP or 2.0 for 10 HP. (Fill the table with the values)

Pipe size (mm)

Additional refrigerant

charge factor (kg/m)

Ø15.88 x 0.19

Ø12.7 x 0.12 Ø9.52 x 0.065 Ø6.35 x 0.065

Setting of Pipe Length DSW.

DSW2 setting will be required only when the refrigerant pipe length is shorter than 5 m or longer than 30 m. Pipe length setting shall be performed as shown below.

(The  side in the table below shows the DSW location)

DSW2 on Outdoor PCB1

Factory setting Pipe Length ≤ 5m Pipe Length ≥ 30m

When the refrigerant should be collected into the outdoor unit due to indoor/outdoor unit relocation, collect the refrigerant as follows:

1 Attach the manifold gauge to the gas stop valve and the liquid

stop valve

2 Turn ON the power source 3 Set the DSW1-1 pin of the outdoor unit PCB at the “ON” side

for cooling operation. Close the liquid stop valve and collect the refrigerant.

4 When the pressure at lower pressure side (gas stop valve)

indicates -0.01 MPa (-100 mmHg), perform the following procedures immediately.

- Close the gas stop valve.

- Set the DSW1-1 pin at the “OFF” side (To stop the unit operation).

5 Turn OFF the power source.

CA U T IO N

Measure the low pressure by the pressure gauge and keep it not to decrease than -0.01 MPa. If the pressure is lower than -0.01 MPa, the compressor may be faulty.

13.7 REFRIGERANT PUMP DOWN

Drain piping

PMML0317A rev.1 - 11/2013

ENGLISH

14 DRAIN PIPING

15 ELECTRICAL WIRING

1 Ensure that the eld-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 2004/108/EC(89/336/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 Z max (Ω) MODEL Z max (Ω)

RAS-3HVNP1E - - RAS-4HVNP1E - RAS-4HNP1E -

RAS-4HVRNS3E 0.27 RAS-4HRNS3E -

RAS-5HVNP1E - RAS-5HNP1E RAS-6HVNP1E - RAS-6HNP1E -

- - RAS-8HNPE -

- - RAS-8HNCE -

- - RAS-10HNPE -

- - RAS-10HNCE -

3 Harmonics situation of each model regarding IEC 61000-3-2

and IEC 61000-3-12 is as follows:

MODELS SITUATION REGARDING IEC 61000-3-2 AND IEC 61000-3-12

Ssc “xx”

MODELS

Ssc “xx”

(KVA)

Equipment complying with IEC 61000-3-2 (professional use)

RAS-(4-6)HNP1E

RAS-4H(V)RNS3E

Equipment complying with IEC 61000-3-12 RAS-(3-6)HVNP1E -

Installation restrictions may be applied by authorities regarding the power supply in relation to harmonics

RAS-(8/10)HNPE RAS-(8/10)HNCE

4 Check to ensure that the power supply voltage is within +/-

10% of the rated voltage.

5 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.

6 Check to ensure that the ground wire is connected. 7 Connect a fuse of specied capacity.

NO T E

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

CA U T IO N

• Check to ensure that screws for terminal block are tightly

tightened.

• 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 re 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 specied capacity.

DA N G ER

• 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.

14.1 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-26 All units



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 eld-supplied.

NO T E

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

This drain boss is not sufcient 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.

Rubber cap

Drain Boss

Extruded portion

Drain pipe

Drain hole of Base

15.1 GENERAL CHECK

Electrical wiring

PMML0317A rev.1 - 11/2013



The electrical wiring connection for the outdoor unit is

shown in gure below:

RAS-3HVNP1E

RAS-(4-6)HVNP1E

RAS-4HVRNS3E

RAS-4HRNS3E

RAS-(4-10)HNP(1)E

RAS-(8-10)HNCE

Power supply

1~ 230V

Control cable (5V)

Power supply

3N~ 400V

Control cable (5V)

Table for Terminal Connection between units

Wiring System

Units type

Connection of terminals

Power Supply DC inverter

O.U. to O.U.

L1 to L1, L2 to L2, L3 to L3, N to N

I.U. to I.U.

L1 to L1, N to N)

Operating DC inverter

O.U. to I.U. or I.U. toI.U.

1 to1, 2 to 2

Remote Control DC inverter

I.U. to I.U.

A to A, B to B

O.U.: Outdoor Unit; I.U.: Indoor unit

15.2.1 Setting of DIP Switches for Outdoor Unit



Quantity and Position of DIP Switches.

The location is as follows:

RAS-3HVNP1E, RAS-(4-10)H(V)NP(1)E, RAS-(8-10)HNCE

and RAS-4H(V)RNS3E



DSW1: For Test Run

Factory setting



DSW2: Optional Function Setting

Factory setting

Piping length ≤ 5m

Piping lenght ≥ 30m

Control to support existing pipes or when using Ø19,05 gas pipe (soft-annealed), switch ON DSW2 pin 4 in the outdoor unit PCB

Optional function setting mode (The optional function selection mode become available)

1 2 3 4 5 6

External input/output setting mode (The input / output signals selection mode becomes avaliable).

15.2 ELECTRICAL WIRING CONNECTION FOR OUTDOOR UNITS

Electrical wiring

PMML0317A rev.1 - 11/2013

ENGLISH



DSW3: Capacity

Factory setting

RAS-3HVNP1E

RAS-4HVNP1E

RAS-4HVRNS3E

RAS-5HVNP1E RAS-6HVNP1E

1 2 3 4 5 6

RAS-4HNP1E

RAS-4HRNS3E

RAS-5HNP1E RAS-6HNP1E

RAS-8HNPE RAS-8HNCE

RAS-10HNPE RAS-10HNCE

1 2 3 4 5 6



DSW5: Transmission Setting of End Terminal Resistance

Factory setting

Cancellation

In the case that the outdoor units quantity in the same H-LINK is 2 or more, set No. 1 pin of DSW5 at “OFF” side from the 2nd refrigerant group outdoor unit. If only one outdoor unit is used, no setting is required.



DSW4 / RSW1: Refrigerant Cycle No. Setting

Factory setting (Setting for the ten digit).

Factory setting

(Setting for the last digit).



DSW6: Optional function setting (IVX series only)

For individual operation

(factory setting position) For IVX series

For simultaneous operation

DSW6: Only for ES series

Factory setting



Example of DSW5 setting

1 2

DSW5

1 2

DSW5

1 2

DSW5

1 2

DSW5

( H-LINK) ( H-LINK)

( H-LINK)

Electrical wiring

PMML0317A rev.1 - 11/2013

15.3 COMMON WIRING

CA U T IO N

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

15.3.1 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, and operation wiring between indoor 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.

• Open a hole near the connection hole of power source wiring when multiple outdoor units are connected from one power source line.

• The recommended breaker sizes are detailed in the Wire size section.

• In the case that a conduit tube for eld-wiring is not used, x rubber bushes with adhesive on the panel.

• All the eld wiring and equipment must comply with local and international codes.

• H-LINK twist pair shielded cable must be grounded in the outdoor unit side.

CA U T IO N

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

Power source from the outdoor IVX unit

to the indoor unit (example)

Independent power source of outdoor IVX unit

and indoor unit (example)

L1 L2 L3 NL1 L2 L3 N

L1 L2 L3 N

No. 0 System Outdoor unit

Operating Line (Shielded Pair Cable)

5V (Non-Pole Transmission, H-LINK System)

Remote Control Switch (Twisted Shielded Pair Cable)

Operating Line (Twisted Shielded Pair Cable)

5V (Non-Pole Transmission, H-LINK System)

Indoor Unit

Terminal board Circuit Breaker Earthleakage Breaker Field Wiring Field supplied Optional Accessory

Remote Control Switch (Twisted Shielded Pair Cable)

Indoor Unit

Wiring example (IVX series only)

Basic combinations (in the case of twin combination)

1 2

DSW6

1 2

DSW6

1 2

DSW6

Operating line

Operating line Operating line

Remote control line

Individual control Running ON/OFF individually Thermo.ON/OFF individually

Individual control Running ON/OFF simultaneously Thermo.ON/OFF individually

Simultaneous control Running ON/OFF simultaneously Thermo.ON/OFF simultaneously

Electrical wiring

PMML0317A rev.1 - 11/2013

ENGLISH

15.3.2 Wire size



Connection wiring

Recommended minimum sizes for eld provided wires:

Model Power supply

Power source

cable size

Transmitting

cable size

EN60 335-1 EN60 335-1

All Indoor Units

1~ 230V 50Hz

0.75 mm²

RAS-3HVNP1E

4.0 mm²

RAS-(4-6)HVNP1E

6.0 mm

RAS-4HVRNS3E

6.0 mm

RAS-(4-6)HNP1E

3N~ 400V 50Hz

2.5 mm

RAS-4HRNS3E

4 mm

RAS-(8-10)HNPE

6.0 mm

RAS-(8-10)HNCE

6.0 mm

NO T E

• Follow local codes and regulations when selecting eld wires, Circuit breakers and Earth Leakage breakers

• Use the wires which are not lighter than the ordinary polychloroprene sheathed exible cord (code designation H05RN-F)



Main switch protection

Select the main switches in according to the next table:

Model Power supply

Max. current

(A)

CB (A)

ELB (no.

poles/A/mA)

All Indoor Units 1~ 230V 50Hz 5.0 6 2/40/30

ELB: Earth switch; CB: Circuit braker

IVX Premium series

Outdoor unit

(A)

CB (A)

ELB

RAS-3HVNP1E

21.5 25

2/40/30

RAS-4HVNP1E

30.5 40

RAS-5HVNP1E

30.5 40

RAS-6HVNP1E

30.5 40

RAS-4HNP1E

14.0 20

4/40/30

RAS-5HNP1E

14.0 20

RAS-6HNP1E

16.0 20

RAS-8HNPE

24.0 30

RAS-10HNPE

24.0 30

IVX Standard series

Outdoor unit

MC (A)

CB (A)

ELB

RAS-8HNCE 24.0 30

4/40/30

RAS-10HNCE 24.0 30

ES series

Outdoor unit

MC (A)

CB (A)

ELB

RAS-4HVRNS3E 28.0 32 2/40/30

RAS-4HRNS3E 15.0 20 4/40/30

15.3.3 H-LINK II System

NO T E

The H-LINK II system can not be applied to the cycle with the old H-LINK model.

1 Application

The new H-LINK II connecting each indoor unit and outdoor unit for up to 64 refrigerant cycles (up to 160 indoor unit per H-LINKII), and connecting wires for all indoor units and all outdoor units in series.

2 Specications

- Transmission Wire: 2-Wire.

- Polarity of Transmission Wire: Non-Polar Wire.

- Maximum Outdoor Units To Be Connected: 64 Units per H-LINK II system.

- Maximum Indoor Units To Be Connected: 160 Units per H-LINK II system.

- Maximum Wiring Length: Total 1000m (including CS-NET). 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: 5V.

NO T E

Do not make a wiring in a loop.

3 Dip Switch Setting of Indoor PCB and Outdoor PCB.

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

Electrical wiring

PMML0317A rev.1 - 11/2013

15.3.4 System installation DIP Switch Setting



Dip Switch Setting of Indoor PCB and Outdoor PCB for H-LINK II

It is required to set dip switches of every indoor unit and outdoor unit and match of the transmission circuit impedance.

• Dip Switch Setting Example:

Cycle nº 0

DSW5

Terminating Resistance

DSW4

Refrigerant Cycle Nº (Setting for ten digit)

RSW1

Refrigerant Cycle Nº (Setting for last digit)

Outdoor units

Indoor units

DSW5

Refrigerant Cycle Nº (Setting for ten digit)

RSW2

Refrigerant Cycle Nº (Setting for last digit)

DSW6

Indoor unit Address (Setting for ten digit)

RSW1

Indoor unit Address (Setting for last digit)

Cycle nº 1

Cycle nº 2

Unit Name of Dip Switch Mark

Setting Before

Shipment

Function

Outdoor Unit

Refrigerant Cycle

DSW4

RSW1

DSW4 RSW1

For setting refrigerant cycle address of Outdoor Unit. Set the DSW4 and RSW1 not to overlap the setting of other Outdoor units in the same H-LINK system

Terminating Resistance DSW5

For matching impedance of transmission circuit, set the DSW5 according to the quantity of outdoor units in the H-LINK system.

Indoor Unit

Refrigerant Cycle

DSW5

RSW2

DSW5 RSW2

For setting refrigerant cycle address of indoor units. Set the DSW5 and RSW2 corresponding to the address of outdoor unit in the same refrigerant cycle.

Indoor Unit Address

DSW6

RSW1

DSW6 RSW1

For setting indoor unit address. Set the DSW6 and RSW1 not to overlap the setting of other indoor units in the same refrigerant cycle. (If not set, the automatic address function is performed).

Test running

PMML0317A rev.1 - 11/2013

ENGLISH

16 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 conrm that the electrical wiring and the refrigerant piping are correctly connected.

Test run should be performed according to the Test Run Proce-

dure on next page.

CA U T IO N

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

• Check to ensure that the electrical resistance is more than 1 MΩ, 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

• Conrm that the gas line stop valve and the liquid line stop valve are fully open.

• Conrm that the leakage of the refrigerant does not exist. The are nuts are sometimes loosened by vibration during transportation.

• Check that the refrigerant piping and the electrical wiring conform to the same system.

• Conrm 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.

CA U T IO N

Conrm that eld-supplied electrical components (main switch fuse, fuse-free breaker, earth leakage 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.

NO T E

• For more reference check Troubleshooting chapter on Opera- tion Part.

• For twin, triple and quad check the indoor unit outlet air temperature at test run. If the temperature difference is large (aprox. 10 deg. or more (cooling) 20 deg. or more (heating) recheck the refrigerant piping, Installation may have some problem.

• In the case of anual cooling optional function, cut JP1 out and set the DSW6-1 to OFF. (Individual control is not available when anual cooling is selected).

Test running

PMML0317A rev.1 - 11/2013

16.1 TEST RUN PROCEDURE BY REMOTE CONTROL SWITCH (PC-ART EXAMPLE)



Turn ON the power source of the Indoor and Outdoor Units



Counting number of connected units



Operation lamp



Set the TEST RUN mode by remote control switch.

Depress the “MODE” and the “

OK” switches simultaneously

for more than 3 seconds.

a. If “TEST RUN” and the counting number of the connect-

ed units to the remote control switch (for example

“05”)

are indicated on the remote control switch, the connection of remote control cable is correct.→Go to 

If no indication appear or the number of the units indicated is smaller than the actual number of the units, some

abnormalities exist.→Go to 



Remote Control

Switch Indication

Wrong Portions Inspection Points after Power Source OFF

No indication

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

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 Connecting on the PCB

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

Back to

 after checking



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



Depress RUN/STOP switch.

The TEST RUN operation will be started. (The 2 hours OFF-TIMER will be set and the TEST RUN operation will be nished 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.

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



Test running

PMML0317A rev.1 - 11/2013

ENGLISH



Remote Control

Switch Indication

Unit Condition Wrong Portions

Inspection Points after

Power Source OFF

The operation lamp ickers. (1 time/1 sec.) And the Unit No. and Alarm Code “03” icker

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

Board.

2 Screw fastening of each Terminal

Boards.

NO T E

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 ickers. (1 time/2 sec.)

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

 1 and 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.

00, Alarm

Code  and Unit Code

00 icker

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

 after checking



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 1st pin of DSW7 on the indoor unit PCB to ON.

16.2 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

DSW1

Switch for setting of Serivice Operation and Function

1 Test Run 2 COOL/HEAT

Setting ON: Heat Operation

3 Cooling/Heating for intermediate

season

4 Manual Compressor stop

CA U T IO N

• 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.

Test running

PMML0317A rev.1 - 11/2013

Operation Dip Switch Setting Operation Remarks

Test Run

 Setting of Operation Mode:

Cooling: Set DSW1-2 OFF.

Heating: Set DSW1-2 ON.

 Starting Test Run:

Set DSW1-1 ON and the operation is started after a few ~20 seconds.

Cooling Heating

 The indoor unit automatically start to operate when the test run of the outdoor unit is set.

 The ON/OFF operation can be performed from the remote control switch or DSW1-1 of the outdoor unit.

 Continuous operation during 2 hours is performed without Thermo-OFF.

NO T E

• TEST RUN operation time can be

increased depressing the time switch in the Remote Control.

• If is setting DSW1-3 ON, cool-

ing/heating intermediate season mode is activaded.

• Take care that the indoor units start op-

eration 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 icker, 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

 Setting:

Compressor Manual OFF:

Set DSW1-4 ON.

Compressor ON:

Set DSW1-4 OFF.

 When DSW1-4 is ON during compressor operation, the compressor stops to operate immediately and the indoor unit is under the condition of ThermoOFF.

 When DSW1-4 is OFF, the compressor starts to operate after the cancellation of 3-minutes guard.

• Do not repeat compressor ON/OFF fre-

quently.

Manual Defrost

 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

 Manual Defrost Operation Finishes

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

 Defrost operation is available regardless of frosting condition and total time of heating operation.

 Defrost operation in not performed when the temperature of outdoor heat exchanger is higher than 10°C, high pressure is higher than 3.3 MPa (33kgf/ cm

G) or Thermo-OFF.

• Do not repeat defrost operation frequent-

ly.

Safety summary & control device setting

PMML0317A rev.1 - 11/2013

ENGLISH

17 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-3HVNP1E

RAS-(4-6)HVNP1E

RAS-4HVRNS3E

RAS-(4-6)HNP1E

RAS4HRNS3E

RAS-(8-10)HNPE RAS-(8-10)HNCE

For Compressor

Automatic Reset, Non-Adjustable (each one for each compressor)

Pressure Switches

-0.05 -0.05 -0.05 -0.05

High Cut-Out MPa 4.15 4.15 4.15 4.15

-0.15 -0.15 -0.15 -0.15

Cut-In MPa 3.20±0.15 3.20±0.15 3.20±0.15 3.20±0.15

For Control

Fuse

1~ 230V 50Hz

A 40

(RAS-4HVNCE = 40)

3N~ 400V 50Hz

A 2 X 20 2 X 40

CCP Timer

min.

Non-Adjustable

Setting Time 3 3 3 3

For Condenser Fan Motor

Automatic Reset, Non-Adjustable (each one for each motor)

Internal Thermostat

Cut-Out ºC - - - -

For Control Circuit

A 5 5 5 5

Fuse Capacity on PCB

18 TROUBLESHOOTING

Alarm Code Indication of Remote Control Switch:

Abnormal Indoor Unit No.

Abnormal Ref. Cycle No. Alarm Code Model Code

Connected No. of Indoor Units

Alarm Code

Model Code

Indication Model



Heat-Pump

COOL

MED

ADDS. RN

A/C ALARM

Indicated for a sec-

ond alter-

nately

COOL

MED

ADDS. RN

A/C ALARM



Inverter



Multi (Set-Free)



Cooling Only



Others



2, 3 and 4 indoor units system

Troubleshooting

PMML0317A rev.1 - 11/2013

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

Transmission

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

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

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

05 Power Supply Abnormality power supply Abnormal wave form of power supply.

06 Voltage Drop

Voltage Drop by Excessively Low or High Voltage to Outdoor Unit

Voltage Drop of Power Supply. Incorrect Wiring or insufcient Capacity of Power Supply Wiring

Cycle

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

08 Increase in Discharge Gas Temperature

Insufcient Refrigerant, Ref. Leakage, Clogging or Expansion Valve Close Lock

Sensor on

Indoor Unit

Inlet Air Thermistor

Failure of Thermistor, Sensor, Connection.

12 Outlet Air Thermistor

13 Freeze Protection Thermistor

14 Gas Piping Thermistor

19 Tripping of Protection Device for Fan Motor Failure of Fan Motor

Sensor on

Outdoor Unit

Compressor Thermistor

Failure of Thermistor, Sensor, Connection

(Incorrect Wiring, disconnecting wiring, breaking wire, short circuit)

21 High Pressure Sensor

22 Out+door Air Thermistor

24 Evaporating Thermistor

System

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

35 Incorrect Setting in Indoor Unit No.

Duplication of Indoor Unit number, Nº of Indoor unit over specications.

38 Abnormality of Protective Circuit in Outdoor Unit

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

Pressure

Activation of High Pressure Increase Protection Device

Overload Operation (Clogging, Short-Pass), Pipe Clogging, Excessive Refrigerant, Inert Gas Mixing

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.

Inverter

Activation of overload protection

Failure of IPM or PCB2, heat exchanger clogged, locked compressor, EVI/EVO failure or overcharge.

51 Abnormality of Current Sensor for Inverter Failure of Control PCB, Inverter Module.

53 Protection Activation of Transistor Module

Transistor Module 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 Module Abnormality Failure of Inverter Module.

57 Outdoor Fan Fan Motor Abnormality

Disconnected wire of Incorrect wiring between Control PCB and Inverter PCB.

Incorrect Wiring or Fan Motor Abnormality

Indoor unit No.

setting

Incorrect address No. Setting or refrigerant cycle

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

EE Compressor Compressor protection alarm Failure of compressor.

PMML0317A rev.1 - 11/2013

Printed in Spain

Hitachi RAS-4HVRNS3E, RAS-10HNPE, RAS-10HNCE, RAS-8HNCE, RAS-8HNPE Installation And Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual