UTOPIA RASC-G8 SERIES

UTOPIA RASC-G8 SERIES

Technical Catalog Outdoor Units: 5, 10 HP

CONTENTS

0/1

0 CONTENTS PART II INSTALLATION DATA

PART I TECHNICAL DATA

9

1 FEATURES AND BENEFITS 1.1. System description 1.2. Installation advantages

1/2 1/4

2 GENERAL DATA 2.1. General Data for RASC-5/10HG8E 2.2. Component data for RASC-5/10HG8E 2.3 Name of parts

2/2 2/3 2/4

3 DIMENSIONAL DATA 3.1. RASC-5HG8E 3.2. RASC-10HG8E

3/2 3/3

4 CAPACITIES AND SELECTION DATA 4.1. System Selection Procedure 4/2 4.2. Combinability 4/5 4.3. Standard Cooling and Heating capacity tables 4/5 4.4. Cooling Capacity table 4/6 4.5. Heating Capacity table 4/6 4.6. Correction Factors 4/7 4.7. Fan Performance Curve 4/9 4.8. Sound Data 4/10 4.9. Operation Space 4/11 5 WORKING RANGE 5.1. Power supply 5.2. Temperature Range 5.3. Refrigerant Piping Length

5/2 5/2 5/3

6 ELECTRICAL DATA 6.1. Electrical data for RASC-5/10-HG8E

6/2

7 ELECTRICAL WIRING DIAGRAMS 7.1. Electrical Wiring Diagrams for RASC-5HG8E 7.2. Electrical Wiring Diagrams for RASC-10HG8E 8 REFRIGERANT CYCLE 8.1. Refrigerant Cycle for RASC-5/10HG8E

7/3 7/4 8/1

REFRIGERANT PIPING AND REFRIGERANT CHARGE 9.1 Piping Materials 9.2. Three principles on Refrigerant Piping Work 9.3. Suspension of Refrigerant Piping 9.4. Piping connection for RASC-5/10HG8E 9.5. Piping and Refrigerant Charge 9.6. Refrigerant Charging Quantity

9/2 9/3 9/4 9/4 9/5 9/12

10 DRAIN PIPING 10.1 Drain Piping RASC-5/10HG8E

10/2

11 ELECTRICAL WIRING 11.1. General Check 11.2. Electrical Wiring Connection for RASC-5/10HG8E 11.3. Common Wiring

11/2 11/3

12 AVAILABLE OPTIONAL FUNCTIONS 12.1. RASC-5/10HG8E Available Optional Functions

12/2

13 TROUBLESHOOTING 13.1. Alarm Codes

13/2

11/2

0/2

CONTENTS

Units Code List



NOTE:

MODELS CODIFICATION

Please check, according to the model name, which is your air conditioner type and how it is abbreviated and refered to in this technical catalogue. This Technical Catalogue provides data concerning to ducted G8 Outdoor Unit. For Indoor Units data refer Technical Catalogue TCGB0033 Utopia G8. For Installation, Operation and Maintenance data, refer to Service Manual SMGB0033 Utopia G8.

INDOOR UNIT (HP) OUTDOOR UNIT TWIN

TRIPLE

RAS-5HG8E

2.5/2.5

3.0/2.0

2.0/1.5/1.5

RAS-10HG8E

5.0/5.0

6.0/4.0

3.0/3.0/4.0

QUAD

2.5/2.5/2.5/2.5

! OUTDOOR UNIT

OUTDOOR UNIT Heat Pump Model

Code

RASC-5HG8E

70874441

RASC-10HG8E

70874443

3~

! Model Meaning for Outdoor Unit

RASC- 5 H G 8 E Unit Type C: Centrifugal (Outdoor Unit) RAS Compressor Power (HP) 5-10

H: Heat Pump Series Number

Scroll Compressor R407C

Made in Europe

CONTENTS

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! INDOOR UNITS

INDOOR UNITS FSN(E/M) 4-Way-Cassette

2-Way-Cassette

Ceiling

In-The-Ceiling

Unit

Code

Unit

Code

Unit

Code

Unit

Code

RCI–1.5FSN1E

7E861619

RCD–1.5FSN

60277814

–

–

RPI–1.5FSNE

7E877304

RCI–2.0FSN1E

7E861621

RCD–2.0FSN

60277815

RPC–2.0FSNE

7E872055

RPI–2.0FSNE

7E872024

RCI–2.5FSN1E

7E861620

RCD–2.5FSN

60277816

RPC–2.5FSNE

7E872030

RPI–2.5FSNE

7E872025

RCI–3.0FSN1E

7E871770

RCD–3.0FSN

60277817

RPC–3.0FSNE

7E872058

RPI–3.0FSNE

7E872031

RCI–4.0FSN1E

7E871780

RCD–4.0FSN

60277818

RPC–4.0FSNE

7E872059

RPI–4.0FSNE

7E872032

RCI–5.0FSN1E

7E871790

RCD–5.0FSN

60277819

RPC–5.0FSNE

7E872060

RPI–5.0FSNE

7E872033

RCI–6.0FSN1E

7E871794

–

–

RPC–6.0FSNE

7E872061

RPI–6.0FSNE

7E872034

–

–

–

–

–

–

RPI-10HG7E

70786733

RCI

RCD

RPC

RPI

INDOOR UNITS FSN(E/1M) Wall

Floor

Floor Concealed

Unit

Code

Unit

Code

Unit

Code

RPK–1.5FSN1M

60277867

–

–

–

–

RPK–1.5FSNM

60277825

RPF–1.5FSNE

7E877716

RPFI–1.5FSNE

7E877720

RPK–2.0FSNM

60277826

RPF–2.0FSNE

7E877309

RPFI–2.0FSNE

7E877311

RPK-2.5FSNM

60277844

RPF–2.5FSNE

7E877310

RPFI–2.5FSNE

7E877312

RPK-3-0FSNM

60277845

–

–

–

–

RPK-4-0FSNM

60277847

–

–

–

–

RPK

RPF

RPFI

! Model Meaning for Indoor Unit

RPI- 3.0 F S N (1) (E) Unit Type (Indoor Unit) RCI - RCD RPC - RPI RPK - RPF - RPF(I) Compressor Power (HP) 1.5 - 2.0 - 2.5 - 3.0 - 4.0 - 5.0 - 6.0

N: R410A Series Compatible H-Link Set-Free / System Free

E: Made in Europe M: Made in Malaysia –: Made in Japan

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CONTENTS

COMPLEMENTARY SYSTEMS Accessory

Name

Code

KPI-2521

Total Heat Exchanger

60277481

KPI-5021


60277482

KPI-8021


60277483

KPI-10021


60277484

EF-5GE

Econofresh Kit

7E774148

Figure

ACCESSORIES CODE LIST Accessory

Name

Code

D-2AVE D-2HVE D-10AVE D-10HVE

Drier R407C Drier R407C Drier R407C Drier R407C

7E799901 7E799902 7E799903 7E799904

PC-P1HE

Remote Control Switch

7E799954

PSC-5S

Central Station

60291050

PSC-5T

7 Day Timer

60291052

PC-P5H

Optional Remote Controller

60290879

Figure

CONTENTS

Accessory

Name

Code

Figure

PC-LH3A

Wireless Control Switch

60291056

PC-RLH11

Receiver Kit (for RCI ,RCD, RPC, RPI, RPK,RPF(I) – on the wall–)

60291109

PC-RLH8

Receiver kit (for RCI-FSN1E –on the panel–)

60299961

PC-RLH9

Receiver Kit (2-Wires) (for RCD –on the panel–)

60291107

PSC-5HR

H-LINK Relay

60291105

(not shown)

PCC 1A

Optional Function Connector

60199286

(not shown)

PRC-10E1 PRC-15E1 PRC-20E1 PRC-30E1

2P Extension Cord 2P-Extension Cord 2P-Extension Cord 2P-Extension Cord

7E790211 7E790212 7E790213 7E790214

THM-R2AE

Remote Sensor (THM4)

7E799907

HARC-BXE (A) HARC-BXE (B)

Interface

60290874 60290875

CS-NET (HARC-40E)

CS-NET + Interface

6E191922

DBS-26

Drain Discharging Boss

60299192

0/5

0/6

CONTENTS

Accesory

Name

Code

P-G23WA2

Air Panel

60290534

P-G23DWA1

Air Panel

60299570

P-G46DWA1

Air Panel

60299571

TE-56

Distributors

6E200002

TE-10

Distributors

7E700004

TRE-06

Distributors

7E700005

TRE-10

Distributors

7E700008

QE-810

Distributors

7E700006

B-23H4

Adopter for deodorant filter

60199790

F-23L4-K F-23L4-D

Anti bacteria filter Deodorant filter

60199791 60199793

F-46L4-D

Deodorant filter

60199794

PDF-23C3

Duct connection flange

60199795

PDF-46C3

Duct connection flange

60199796

OACI-232

Fresh air intake kit

60199797

PD-75

Fresh air intake kit

60199798

PI-23LS5

3 Way outlet parts

60199799

PSP-23W3

Space panel for replace 4-6HP

60199800

TKCI-232

T duct connecting kit

60199801

Figure

(not shown)

FEATURES AND BENEFITS

1/1

1 FEATURES AND BENEFITS This chapter describes the features and benefits of the new Hitachi G8 series outdoor unit, which through its system flexibility and modularity will provide you with the complete solution for your building air conditioning requirements.

CONTENTS 1 1.1.

FEATURES AND BENEFITS ________________________________________________ 1 System description ________________________________________________________ 2 1.1.1. 1.1.2.

1.2.

General overview __________________________________________________________ 2 Combination flexibility ______________________________________________________ 2

Installation advantages _____________________________________________________ 4 1.2.1. 1.2.2.

Electrical wiring ___________________________________________________________ 4 Easy service and commissioning______________________________________________ 4

1/2


1.1. System description To help you quickly discover all the features and benefits of the system, this section provides an overview of the system, the choice of compatible indoor units, a description of the various unit combinations, and details concerning the benefits of the electronic expansion valve that the system uses.

1.1.1.

General overview

Hitachi is proud to announce the introduction of the new UTOPIA G8 series outdoor unit with its combination of SYSTEM FREE indoor units. This combination allows the interconnection of the same indoor units in all the systems. In achieving this Hitachi has effectively started a NEW GENERATION of AIR CONDITIONING.

Outdoor Unit Indoor Unit

SET FREE FSG(1)/FXG(1)/FSN/FXN

FSN(1)E R410A/ R407C

DC INVERTER HVRG/HVRNE UTOPIA G8, RAS/ RASC

The system provides effortless selection, easy control, logical zoning, and trouble-free installation. Through its modularity the system delivers maximum flexibility and consequently offers increased benefits for both customers and installers.

1.1.2.

Combination flexibility

With its modular design the new Utopia RASC-5/10 G8 series outdoor unit provides a totally flexible air conditioning solution. This offers not only standard cooling functions but, in addition, heating (for Heat Pump models), dry and fan operation for all environments.

Twin, Triple and Quad configurations are suitable for large standard-shaped room areas. These combinations deliver air conditioning from several units to obtain a smooth and even airflow. This would be very difficult to achieve using a single standard large-sized unit.

The systems are offered in the following combinations: ! Single, twin, triple and quad with the Centrifugal UTOPIA outdoor unit Examples of the various combinations: Single with Centrifugal Utopia Unit

Twin with Centrifugal Utopia Unit


Triple with Centrifugal Utopia Unit

1/3

Quad with Centrifugal Utopia Unit

" Compatibility According to the table on the right, the compatibility between different systems remains as it follows: ! The New Outdoor Units G8 Series will be accepted with the Set Free Indoor Units (System Free).

Compatibility Indoor and Outdoor Unit

UTOPIA Outdoor

! The connection between Utopia Outdoor Units G8 Series and Utopia Indoor Units G7 Series is accepted. ! The connection between Utopia Outdoor Units G8 Series and Utopia Indoor Units G5 Series is not accepted.

Indoor

HG7E (Cool/Heat Unify) RASC-HG8E FSG2E/FSG2Ei/ FSN(1)E


1/4

1.2. Installation advantages This section details the enhancements that have been made to the new UTOPIA RASC G8 series outdoor units to simplify their installation.

1.2.2.

Easy service and commissioning

To provide more efficient sevicing and comissioning the systems are equipped with on-board test, trial operation, and self-diagnosis functions. " Test run - An automatic test run function is available to aid

commissioning using the outdoor unit dip switch or the indoor unit remote control switch. - The system is equipped with an identification system

" Location This unit can be installed in indoor or outdoor locations. Usually is used in some places that is impossible to place the outdoor unit outside the building. " Carefree maintenance Easy maintenance access is assured without the need to move or disconnect any of the outdoor units thanks to the conveniently located front access panel. " Operational to -8ºC The outdoor heat pump temperature, can be safely and effectively operated in external temperatures as low as -8°C.

1.2.1.

Electrical wiring

The electrical control wiring is greatly simplified through the use of the H-LINK wiring system. " H-Link system The H-LINK wiring system requires only two transmission wires for connecting each outdoor unit to its indoor units (to control up to 16 refrigerant cycles). Both outdoor units and indoor units require connecting wires in series. The H-LINK system provides the following advantages: - Trouble-free and adaptable installation. - No polarity requirements. - Freely combinable. - CS-Net connection via indoor or outdoor unit - Up to 64 indoor units - Up to cable run length: 1000 m

Example of H-LINK system Outdoor Unit

Transmission Wires

Indoor Unit

Refrigerant Piping

Indoor Units

CS-NET

that can be used to confirm which series the connected outdoor units are members of (for example: single or multi). This is controlled with a remote control switch. - An automatic address coding system is also provided.

This automatically gives a unit number to individual Indoor Units (Indoor Units can also be manually allocated with a unit number using their rotary type dip switches). " Trial operation and self diagnosis The new remote control switch provides highly efficient control functions. A new self-diagnosis function, which enables quick checking of operation conditions in the Indoor Units and Outdoor Unit, has been implemented. Furthermore, alarm data can be stored in the memory of an on-board microcomputer when an abnormality occurs. - Data memory in the remote control switch

If an abnormality occurs, the remote control switch LCD will indicate an alarm code so that quick diagnosis is available at the site. - Optional function setting by remote control switch Cancellation of a 4 degree shift in heating mode or fan speed increasing setting, are set via Remote Control Switch. Then, multiple Indoor Units can be set, at the same time.The configuration can also be easily changed, even after installation is completed. " Service checker A Service Checker to monitor installation conditions and the operational status of air conditioning systems through a desktop or laptop-type computer is available. You can also easily create test run records (A service checker system consists of a special interface unit and a field-supplied desktop computer).

GENERAL DATA

2 GENERAL DATA For Indoor Units data refer to TCGB0033 about Hitachi Utopia G8 Series.

CONTENTS 2

GENERAL DATA _________________________________________________________ 1

2.1.

General Data for RASC-5/10HG8E____________________________________________ 2

2.2

Component data for RASC-5/10HG8E _________________________________________ 3

2.3.

Name of parts ____________________________________________________________ 4 2.3.1. 2.3.2.

RASC-5HG8E ____________________________________________________________ 4 RASC-10HG8E ___________________________________________________________ 4

2/1

2/2

GENERAL DATA

2.1. GENERAL DATA FOR RASC-5/10HG8E Model RASC Nominal Cooling Capacity Nominal Heating Capacity Cabinet Colour Sound Pressure Level (1*) Height Outer Dimensions Width Depth Net Weight Refrigerant Charge

kW kW dB (A) mm mm mm Kg Kg

Refrigerant Type Model Quantity Type Fan Motor Output Quantity Nominal Static Pressure Maximum Static Pressure Compressor

W mmAq mmAq

Connections Liquid Line Gas Line Drain Piping (Outer diameter) Packing Measurements Refrigerant Piping

mm (in) mm (in) mm 3 m

RASC-5HG8E

RASC-10HG8E

12.50 14.00 Soft Grey (RAL 9002) 53 555 1312 835 175 4.5 R407C (Factory Charged for 10 meters) (2*) Hermetic (Scroll) G500DH 1 Centrifugal Fan 550 1 5 13 Service Valves with Flare Nut connection 9.53 (3/8) 19.05 (3/4) 22 0.60

25.00 28.00 Soft Grey (RAL 9002) 60 640 2050 928 310 4.5 R407C (Factory Charged for 10 meters) (2*) Hermetic (Scroll) G1000EL 1 Centrifugal Fan 1100 1 5 13 Service Valves with Flare Nut connection/ Flange connection 15.88 (5/8) 28.6 (1 1/8) 22 (two locations) 0.88

 NOTE: (1*)

. The Sound Pressure Level is based on following conditions:

AVAILABLE POWER SUPPLY VOLTAGES: The available voltages for the different units are shown in the following table.

- 3 m from the unit front surface The above data was measured in an anechoic chamber so that reflected sound should be taken into consideration in the field. In case of Night Shift conditions, the noise level decreases about 2 dB (A) (2*)

. The outdoor unit is charged with refrigerant before shipment. The charged volume is the equivalent of a refrigerant piping of 10 meters, when combining to HITACHI standard indoor unit.

Model

Voltage (V)

Power Supply Phase Frequency (Hz)

RASC-5HG8E

380-415

3

50

RASC-10HG8E

380-415

3

50

GENERAL DATA

2.2. COMPONENT DATA FOR RASC-5/10HG8E

Compressor

Fan Unit

Heat Exchanger

Model RAS Heat Exchanger Type Material Tube Outer Diameter Rows Material Fin Pitch Frontal Area Maximum Operating Pressure Number of Heat Exchanger/Unit Type Number/Unit Outer Diameter Fan Revolutions Nominal Air Flow/Fan Type Starting Method Fan Nominal Output Motor Quantity Insulation Class Model Revolutions 50Hz Displacement 50Hz Capacity Steps Air Tight Pressure Discharge Motor Type Oil

Starting Method Poles Insulation Type Charge

Units

mm

mm m2 Kg/cm2 G MPa

mm rpm m³/min

kW

rpm mm Kg/cm² G MPa

liters

RASC-5HG8E Multi-Pass Cross Finned Tube Copper Tube 9.53 5 Aluminium 2 0,52 33.0 3.30 1 Centrifugal Fan 1 320 950 60 Drip-Proof Type Enclosure Permanent Split Capacitor 0,55 1 B G500 DH-80D1 2880 13,82 0-100 33.0 3.30 Direct-on-line Starting 2 E Ether Oil IDEMUTSU FVB68D 1,8

RASC-10HG8E Multi-Pass Cross Finned Tube Copper Tube 9.53 5 Aluminium 2 0,87 33.0 3.30 1 Centrifugal Fan 1 320 875 98 Drip-Proof Type Enclosure Permanent Split Capacitor 1,10 1 F G1000EL-160D3 2880 13,82 0 – 100 33.0 3.30 Direct-on-Line Starting 2 E 3.5

2/3

2/4

GENERAL DATA

2.3. NAME OF PARTS 2.3.1.

2.3.2.

RASC-5HG8E No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

Part Name Fan Fan Motor Heat Exchanger Capillary tube for Gas By-pass Strainer Electric Control Box Compressor Check Valve Reversing Valve Stop Valve for Gas Line Stop Valve for Liquid Line Accumulator Check Joint Solenoid Valve for Gas By-pass High-Pressure Switch Pressure Switch Oil Heater Vibration Isolation Rubber Protector Net Drain Pipe Stop Valve Protector Drain Pan Drain Pipe Protector Cycle Service Panel Air Inlet Panel Air Outlet Panel Fan Service Panel

No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

Part Name Fan Fan Motor Heat Exchanger Capillary tube for Gas By-pass Strainer Electrical Box Compressor Header 4-Way Valve Stop Valve for Gas Line Stop Valve for Liquid Line Accumulator Check Joint Solenoid Valve for Gas By-pass High-Pressure Switch Pressure Switch Oil Heater Vibration Isolation Rubber Protector Net Drain Pipe Stop Valve Protector Drain Pan Drain Pipe Protector Service Panel Air Inlet Panel Air Outlet Panel Fan Service Panel

RASC-10HG8E

DIMENSIONAL DATA

3. DIMENSIONAL DATA For Indoor Units data refer to TCGB0033 about Hitachi Utopia G8 Series.

CONTENTS 3. DIMENSIONAL DATA ___________________________________________________________ 1 3.1. RASC–5HG8E________________________________________________________________ 2 3.2. RASC–10HG8E_______________________________________________________________ 3

3/1

3/2

DIMENSIONAL DATA

3.1. RASC–5HG8E

Mark Name 1 2 3 4 5 6 7 8 9 10 11

Air Inlet Air Outlet Refrigerant Gas Line Refrigerant Liquid Line Valve Protector Drain Pipe Protection Drain Pipe Service Panel Holes for Wiring connection Alternatie Air Inlet Alternative Air Outlet

Remarks

19.05 Flange 9.53 Flare Nut

Electrical Box Access

DIMENSIONAL DATA

3.2. RASC–10HG8E

Mark Name 1 2 3 4 5 6 7 8 9 10 11

Air Inlet Air Outlet Refrigerant Gas Line Refrigerant Liquid Line Valve Protector Drain Pipe Protection Drain Pipe Service Panel Holes for Wiring connection Alternative Air Inlet Alternative Air Outlet

Remarks

28.6 Flange 15.88 Flare Nut

Electrical Box Access

3/3

CAPACITIES AND SELECTION DATA

4/1

4 CAPACITIES AND SELECTION DATA This chapter is a guide for selecting the most suitable units for your requirements and shows you the performance details of each unit.

CONTENTS 4

CAPACITIES AND SELECTION DATA ________________________________________ 1

4.1.

System Selection Procedure_________________________________________________ 2 4.1.1. 4.1.2. 4.1.3.

How to use the data from the chapter __________________________________________ 2 Selection Example for Cooling Load ___________________________________________ 2 Selection Example, Heating Load _____________________________________________ 4

4.2.

Combinability_____________________________________________________________ 5

4.3.

Standard Cooling and Heating capacity tables ___________________________________ 5

4.4.

Cooling Capacity table _____________________________________________________ 6

4.5.

Heating Capacity table _____________________________________________________ 6

4.6.

Correction Factors_________________________________________________________ 7 4.6.1. 4.6.2.

Correction Factors Due to piping length ________________________________________ 7 Sensible Heat Factor _______________________________________________________ 8

4.7.

Fan Performance Curve ____________________________________________________ 9

4.8.

Sound Data _____________________________________________________________ 10

4.9.

Operation Space _________________________________________________________ 10

4/2


4.1. SYSTEM SELECTION PROCEDURE This chapter shows how to select a suitable model for certain requirements.

4.1.1.

HOW TO USE THE DATA FROM THE CHAPTER

When your requirements are defined (load, working temperatures and installation requirements) is necessary to select the most suitable units. To calculate the suitable units use the following information: From chapter 4: ! Combinability from subchapter 4.2 ! Cooling capacity data from subchapter 4.4 ! Heating capacity data from subchapter 4.5 ! Piping length and lift correction factor from subchapter 4.6 ! Sensible heat factor from subchapter 4.6.2 ! Noise data from subchapter 4.8 ! Operation Space from subchapter 4.9 Use also the following data: ! General data from Chapter 2 ! Electrical Data from Chapter 6 Outdoor Unit could be installed using ducts at Inlet and Outlet air. The fan performance for duct calculation should be considered, as Subchapter 4.7. shows. Next examples of selection unit for Cooling Load and Heating Load will use the following units type, selected after consider above indications.

4.1.2.

SELECTION EXAMPLE FOR COOLING LOAD

In order to show how to select the units characteristics, we define the following requirements:

 Step 0: System requirements Cooling load: Total cooling load: Sensible heat load: Outdoor Air inlet Dry Bulb temperature: Indoor Air inlet Dry Bulb Temperature: Indoor Air inlet Wet Bulb Temperature:

10.5 kW 8.0 kW 35.0 ºC 26.0 ºC 18.0 ºC

Installation restrictions: Power source: 380 V, 3~, 50 Hz. Outdoor unit under indoor unit: 15.0 meters. Piping Length: 27.0 meters Indoor units type: In this case Twin system with an RPK-FSNM and RPC-FSNE indoor units is required.

 Step 1: Select outdoor unit capacity performance Pre-select an outdoor unit according to required the cooling load at defined temperatures (outdoor air inlet dry Bulb and indoor air inlet wet bulb). Selected unit must have a bigger cooling capacity than the cooling capacity required. Use cooling capacity data from subchapter 4.4.

CR

RASC-5HG8E

0,61

Outdoor Air Inlet DB (°C)

Indoor air inlet web bulb (°C) / dry bulb (°C) 16/23 18/25 CAP

IPTo/u

CAP

IPTo/u

10

12,77 4,68

13,62

4,16

15

12,40 4,31

13,23

4,39

21

12,25 4,57

13,13

4,67

25

12,13 4,81

12,88

4,91

30

11,75 5,00

12,50

5,14

35

11,38 5,24

12,13

5,33

40

10,75 5,53

11,50

5,67

Table 1 -Cooling Capacity DataApply a correction factor according to piping length and lift (subchapter 4.6) to the cooling capacity System cooling capacity = cooling capacity x correction factor = 12,13 x 0,9 = 10,91 kW We conclude that the most suitable Outdoor unit for the system requirements is RASC-5HG8E.


4/3

 Step 2: Indoor unit capacity performance Select the indoor units according to your specific requirements. In this case Twin system using a RPK and RPC unit is required. See combinability from subchapter 4.2 for allowed indoor units. In this case outdoor unit selected (step 1) is a RASC-5HG8E (allows to be combined with RPK-3.0FSNM and RPC-2.0FSNE indoor units).

where SHCc corrected sensible heat capacity (kW). SHC sensible heat capacity (kW). CR correction ratio (from subchapter 4.4). DBr evaporator dry bulb temp (ºC). DB evaporator dry bulb temp (ºC) or interpolated for each WB in the table.

Once outdoor unit and indoor units have been selected is necessary to adjust the indoor unit nominal capacity to the system.

For the example system:

A. Outdoor unit fix the system cooling capacity.

SHCcRPC = 3,22 + 0,61x(26-25) = 3,83 kW SHCcRPK = 4,62 + 0,61x(26-25) = 5,23 kW

B. Get, for each indoor unit, the nominal capacity from chapter 2 in TCGB0033. C. Define indoor unit capacity distribution for each unit based on total system indoor unit capacity. D. To calculate indoor unit capacity apply the indoor unit distribution ratios to the system cooling capacity. RASC5HG8E

Use cooling capacity data from subchapter 4.4. to get outdoor unit input at required temperatures.

cooling capacity nominal capacity

10,91 kW 5,0 kW

C

distribution

=5,0/(5,0+7,1) =7,1/(5,0+7,1)

7,1 kW

=0,41

=0,59

unit performance

=10,91x0,41

=10,91x0,59

capacity

=4,47kW

=6,43kW

10,91 kW

SHCc = 9,06 kW

 Step 4: IPT calculation

B

SYSTEM CAPACITY

SHCc = SHCcRPC + SHCcRPK = 3,83 + 5,23 =9,06

RPC-2.0FSNE RPK-3.0FSNM

A

D

System sensible heat capacity is:

4,47 kW

6,43 kW

 Step 3: Sensible heat capacity (SHC) System requirements specify a sensible heat load equal to 8kW. When unit performance capacity is defined is possible to calculate sensible heat capacity for each indoor unit. From subchapter 4.6.2 get Sensible heat factor SHF for high fan speed.

CR

RASC-5HG8E 0.61

Indoor air inlet web bulb (ºC) / dry bulb (ºC) Outdoor Air 16/23 18/25 Inlet DB (ºC) CAP IPTo/u CAP IPTo/u 10

12,77

4,08

13,62

4,16

30

11,75

5,00

12,50

5,14

35

11,38

5,24

12,13

5,33

40

10,75

5,53

11,50

5,67

Table 2 -Cooling Capacity dataGet indoor unit input from chapter 6 Electrical data. IPT = IPTo/u + Σ IPTi/u IPT= IPTo/u + IPTRPC + IPTRPK = 5,33 + 0,14 + 0,09 =5,56 IPT =5,56 kW

Calculate sensible heat corrected factor for all indoor units using the formula:

 Step 5: EER calculation

SHC = unit performance capacity x SHF

To calculate EER use the following formula:

SHCRPC = 4,47 x 0,72 = 3,22 kW SHCRPK = 6,43 x 0,72 = 4,62 kW

EER = Cooling capacity / IPT EER = 10,91 / 5,56 = 1,96

Difference between system required indoor air inlet dry bulb temperature (26 °C) and cooling capacity data indoor air inlet dry bulb temperature (25º) makes necessary to adjust the sensible heat corrected for each indoor unit. Use the following formula:

EER =1,96

SHCc =SHC + CR x (DBr – DB)


4/4 4.1.3.

SELECTION EXAMPLE, HEATING LOAD

In order to show how to select system units characteristics, we define the following requirements:

 Step 0: System requirements Heating load: Total heating load: Outdoor Air inlet Wet Bulb Temperature: Indoor Air inlet Dry Bulb Temperature:

A. Outdoor unit fix the system cooling capacity. B. Get, for each indoor unit, the nominal capacity from chapter 2 in TCGB0033. C. Define indoor unit capacity distribution for each unit based on total system indoor unit capacity. D. To calculate indoor unit capacity apply the indoor unit distribution ratios to the system cooling capacity.

11 kW 0ºC 18ºC

RASC5HG8E

Installation restrictions: Power source: 380 V, 3~, 50 Hz. Outdoor unit under indoor unit: 15.0 metres. Piping Length: 27.0 meters Indoor units type: In this case Twin system with an RPK-FSNM and RPCFSNE indoor units is required.

 Step 1: Select outdoor unit capacity performance Pre-select an outdoor unit according to required the heating load at defined temperatures (outdoor air inlet and indoor air inlet wet bulb). Selected unit must have a bigger heating capacity than the heating capacity required.

A

cooling capacity

B

nominal capacity

5,60 kW

C

distribution

=5,6/(5,6+8,0) =8,0/(5,6+8,0)

D

RASC5HG8E

8,82

4,66

8,95

4,61

-5

10,36

4,59

10,50

4,54

0

11,76

4,87

11,90

4,78

5

13,30

5,20

13,44

5,11

10

14,70

5,49

14,84

5,44

15

16,24

5,82

16,38

5,77

Table 3 -Heating Capacity dataApply a correction factor according to piping length and lift (subchapter 4.6) to the heating capacity. System heating capacity = heating capacity x correction factor = 11.90 x 1.0 = 11.90 kW We conclude that the most suitable Outdoor unit for the system requirements is RASC-5HG8E.

 Step 2: Indoor unit performance capacity Select the indoor units according to your specific requirements. In this case Twin system using a RPK and RPC unit is required. See combinability from subchapter 4.2 for allowed indoor units. In this case outdoor unit selected (step 1) is an RAS-5HG8E (allows to be combined with RPK-3.0FSNM and RPC2.0FSNE indoor units). Once outdoor unit and indoor units have been selected is necessary to adjust the indoor unit nominal capacity to the system.

8,00 kW =0,59

unit performance

=11,90x0,41

=11,90x0,59

capacity

=4,88kW

=7,02kW

4,88 kW

7,02 kW

SYSTEM CAPACITY

11,90 kW

 Step 3: IPT calculation Use heating capacity data from subchapter 4.4. to get outdoor unit input at required temperatures.

Indoor air inlet dry bulb (ºC) 16 18 CAP IPT o/u CAP IPT o/u

-7

11,90 kW

=0,41

Use heating capacity data from subchapter 4.5. Outdoor Air Inlet WB (ºC)

RPC-2.0FSNE RPK-3.0FSNM

RASC-5HG8E

Indoor air inlet cry bulb (ºC)

Outdoor Air Inlet WB (ºC)

CAP

IPT o/u

CAP

-7

8,82

4,66

8,95

4,61

-5

10,36

4,59

10,50

4,54

0

11,76

4,87

11,90

4,78

16

18 IPT o/u

5

13,30

5,20

13,44

5,11

10

14,70

5,49

14,84

5,44

15

16,24

5,82

16,38

5,77

Table 4 -Heating capacity dataGet indoor unit input from chapter 6 Electrical data. IPT = IPTo/u + Σ IPTI/U IPT= IPTo/u + IPTRPC + IPTRPK = 4,78 + 0,14 + 0,09 = 5,01 IPT= 5,01 kW

 Step 4: EER calculation To calculate EER use the following formula: EER = Heating capacity / IPT EER = 11,90 / 5,01 = 2,37 EER = 2,37


4/5

4.2. COMBINABILITY The new UTOPIA Centrifugal G8 series, allows increase the flexibility of installation. It allows the connection between the different types and horse power Indoor Units with the same Outdoor Units. The differents possible combinations are indicated in the table below

Indoor Units possible Combinations

Outdoor Unit

Combinations

Single RASC5HG8E

RCI-2.5 RCD-2.5 RPC-2.5 RPI-2.5 RPK-2.5 RPF-2.5 RPFI-2.5 -

RCI-3.0 RCD-3.0 RPC-3.0 RPI-3.0 RPK-3.0

RCI-3.5 RPC-3.5 RPI-3.5 RPK-3.5

RCI-4.0 RCD-4.0 RPC-4.0 RPI-4.0

RCI-5.0 RCD-5.0 RPC-5.0 RPI-5.0

RCI-6.0 RPC-6.0 RPI-6.0

RPI-8

RPI-10

-

-

-

1

-

-

-

-

2

-

-

-

-

-

-

-

-

1

-

1

-

-

-

-

-

-

Triple

2

1

-

-

-

-

-

-

-

-

Single

-

-

-

-

-

-

-

-

-

1

-

-

-

-

-

-

2

-

-

-

-

-

-

-

-

1

-

1

-

-

Twin

-

RCI-2.0 RCD-2.0 RPC-2.0 RPI-2.0 RPK-2.0 RPF-2.0 RPFI-2.0 -

-

Twin

RASC10HG8E

RCI-1.5 RCD-1.5 RPI-1.5 RPK-1.5 RPF-1.5 RPFI-1.5

Triple

-

-

-

2

-

1

-

-

-

-

Quad

-

-

4

-

-

-

-

-

-

-

 NOTE: RPF(I):can not be connected with another unit in twin, triple or quad combination

4.3. STANDARD COOLING AND HEATING CAPACITY TABLES Outdoor Unit

Type

RASC-5HG8E

Cooling+ Heating

RASC-10HG8E

Cooling+ Heating

Indoor Unit RCI-5.0FSN1E RPC-5.0FSNE RPI-5.0FSNE RCD-5.0FSN RPI-10HG7E RCI-5.0FSN1Ex2 RPC-5.0FSNEx2 RPI-5.0FSNEx2 RCD-5.0FSNx2

Input Power [kW] (Cooling) 5,57 5,66 5,66 5,61 11,21 11,13 11,31 11,31 11,23

Cooling Output [kW]

EER

12,50 12,50 12,50 12,50 25,00 25,00 25,00 25,00 25,00

2,24 2,21 2,21 2,23 2,23 2,25 2,21 2,21 2,23

 NOTE: Defrost factor is included The nominal cooling and heating capacity is the combined capacity of the HITACHI standard split system, and are based on the ISO13253 for RPI Type and ISO 5151 for the rest of the models. Operation Cooling Conditions 27.0 °C DB Indoor Air Inlet Temperature 19.0 °C WB 35.0 °C DB Outdoor Air Inlet Temperature Piping Length: 7.5 meters DB: Dry Bulb; WB: Wet Bulb

Heating 20.0 °C DB 7.0 °C DB 6.0 °C WB

For more information about capacities, see Chapter 4.4.

Cooling Input Power Performance [kW] (Heat)

Performance Class A B C D E F G

5,20 5,29 5,29 5,26 9,86 9,78 9,96 9,96 9,88

Heat Output [kW]

COP

14,00 14,00 14,00 14,00 28,00 28,00 28,00 28,00 28,00

2,69 2,65 2,65 2,66 2,84 2,86 2,81 2,81 2,83

Heating Performance

Multi-split conditioner Cooling Heating 3.20 < EER 3.60 < COP 3.20 ≥ EER > 3.00 3.60 ≥ COP > 3.40 3.00 ≥ EER > 2.80 3.40 ≥ COP > 3.20 2.80 ≥ EER > 2.60 3.20 ≥ COP > 2.80 2.60 ≥ EER > 2.40 2.80 ≥ COP > 2.60 2.40 ≥ EER > 2.20 2.60 ≥ COP > 2.40 2.20 ≥ EER 2.40 ≥ COP

4/6


4.4. COOLING CAPACITY TABLE CR

RASC-5HG8E

0,61

RASC-10HG8E

0,61

Outdoor Unit Inlet air DB (ºC) 10 15 21 25 30 35 40 10 15 21 25 30 35 40

Indoor Unit Inlet air WET BULB temperature (ºC) / DRY BULB temperature (ºC) 16/23 Capacity 12,77 12,40 12,25 12,13 11,75 11,38 10,75 25,50 24,68 23,69 23,03 22,20 21,38 20,55

18/25 Capacity 13,62 13,23 13,13 12,88 12,50 12,13 11,50 27,25 26,38 25,33 24,63 23,75 22,88 22,00

IPTo/u 4,08 4,31 4,57 4,81 5,00 5,24 5,53 7,97 8,45 9,02 9,53 9,93 10,44 11,05

20/27 Capacity 14,32 13,93 13,88 13,63 13,13 12,88 12,25 28,75 27,84 26,74 26,01 25,10 24,19 23,28

IPTo/u 4,16 4,39 4,67 4,91 5,14 5,33 5,67 8,14 8,63 9,22 9,73 10,24 10,65 11,36

22/30 Capacity 14,83 14,44 14,38 14,13 13,75 13,38 12,75 29,75 28,88 27,83 27,13 26,25 25,38 24,50

IPTo/u 4,27 4,50 4,76 5,00 5,24 5,48 5,72 8,38 8,86 9,43 9,93 10,44 10,95 11,46

IPTo/u 4,39 4,61 4,86 5,14 5,33 5,53 5,86 8,63 9,10 9,63 10,24 10,65 11,05 11,77

CR: Correction ratio IPTO/U:Input power of outdoor unit (indoor unit input power can be read on chapter 6)

4.5. HEATING CAPACITY TABLE

RASC-5HG8E

RASC-10HG8E

Indoor Unit Inlet air DRY BULB temperature (ºC)

Outdoor Unit Inlet air WB (ºC)

Capacity

IPT o/u

Capacity

IPT o/u

Capacity

IPT o/u

Capacity

IPT o/u

Capacity

IPT o/u

-7 -5 0 5 10 15 -7 -5 0 5 10 15

8,82 10,36 11,76 13,30 14,70 16,24 17,64 18,70 21,36 24,02 26,68 29,34

4,66 4,59 4,87 5,20 5,49 5,82 8,76 8,61 9,14 9,77 10,30 10,92

8,95 10,50 11,90 13,44 14,84 16,38 17,92 18,98 21,64 24,30 26,96 29,62

4,61 4,54 4,78 5,11 5,44 5,77 8,66 8,52 8,97 9,59 10,21 10,84

8,95 10,64 12,04 13,58 14,98 16,52 18,00 19,07 21,73 24,39 27,05 29,71

4,46 4,40 4,73 5,01 5,34 5,58 8,38 8,25 8,88 9,41 10,03 10,48

9,07 10,78 12,18 13,72 15,12 16,66 18,28 19,35 22,01 24,67 27,33 29,99

4,41 4,26 4,59 4,97 5,25 5,53 8,28 7,99 8,61 9,32 9,86 10,39

9,20 10,78 12,32 13,72 15,26 16,80 18,56 19,63 22,29 24,95 27,61 30,27

4,31 4,21 4,54 4,82 5,20 5,44 8,10 7,90 8,52 9,05 9,77 10,21

16

18

20

22

IPTO/U:Input power of outdoor unit (indoor unit input power can be read on chapter 6)

 NOTE: Defrost factor is included.

24

26 Capacit y 9,32 10,92 12,46 13,86 15,40 16,80 18,84 19,91 22,57 25,23 27,89 30,55

IPT o/u 4,21 4,16 4,44 4,78 5,06 5,39 7,91 7,81 8,34 8,97 9,50 10,12


4/7

4.6. CORRECTION FACTORS 4.6.1.

CORRECTION FACTORS DUE TO PIPING LENGTH

Correction Factor is based on the equivalent piping length in meters (EL) and the vertical distance between Indoor and Outdoor Unit in meters (H). Outdoor Unit in sun roof

H:

Vertical Distance between Indoor Unit and Outdoor Unit in Meter (m).

 NOTE: H

EL (case of twin, triple or quad: the longest)

EL

H

Indoor Unit(s) in floor

-H

EL (case of twin, triple or quad: the longest)

H>0: Position of Outdoor Unit is higher than Position of Indoor Unit (m). H75 mm Slope 2%

Plug

Drain pipe side

ELECTRICAL WIRING

11 ELECTRICAL WIRING This chapter describes the Electrical Wiring Connection and shows how to set the Dip Switches and the H-Link System. For Indoor Units data refer to TCGB0033 about Hitachi UTOPIA G8 Series

CONTENTS 11

ELECTRICAL WIRING _____________________________________________________ 1

11.1

General Check ___________________________________________________________ 2

11.2

Electrical Wiring Connection for RASC-5/10HG8E ________________________________ 2 11.2.1

11.3

Setting of DIP Switches for Outdoor Unit________________________________________ 3

Common Wiring __________________________________________________________ 3 11.3.1 11.3.2 11.3.3 11.3.4

Electrical Wiring between Indoor Unit and Outdoor Unit ____________________________ Wire Size ________________________________________________________________ H-LINK System ___________________________________________________________ Single, Twin, Triple and Quad Dip Switch Setting _________________________________

3 4 5 6

11/1

11/2 ELECTRICAL WIRING 11.1 GENERAL CHECK 1. Ensure that the field-supplied electrical components (mains power switches, circuit breakers, wires, connectors and wire terminals) have been properly selected according to the electrical data indicated. Make sure that they comply with national and regional electrical codes. 2. Check to ensure that the power supply voltage is within +/-10% of the rated voltage. 3. 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. 4. Check to ensure that the ground wire is connected. 5. Connect a fuse of specified capacity.

 DANGER: - Do not connect of adjust any wiring or connections unless the main power switch is OFF. - Check that the earth wire is securely connected, tagged and locked in accordance with national and local codes. NOTE: Check and test to ensure that if there is more than one source of power supply, that all are turned OFF.

6. Following the Council Directive 89/336/EEC and its amendments 92/31/EEC and 93/68/EEC, relating to electromagnetic compatibility, next table indicates maximum permissible system impedance Zmax at the interface point of the user’s supply, in accordance with EN61000-3-11 MODEL

Zmax (Ω)

RASC-5HG8E

0,21

RASC-10HG8E

0,12

 CAUTION: - Check to ensure that the indoor fan and the outdoor fan have stopped before electrical wiring work or periodical check is performed. - Protect the wires, drain pipe, electrical parts, from rats or other small animals. If not protected, rats may damage unprotected parts, and at the worst, a fire will occur. - Wrap the accessory packing around the wires, and plug the wiring connection hole with the seal material to protect the product from any condensed water and insects. - Tightly secure the wires with the cord clamp inside the indoor unit. - Lead the wires through the knockout hole in the side cover when using conduit. - Secure the cable of the remote control switch with the cord clamp inside the electrical box. - Electrical wiring must comply with national and local codes. Contact your local authority in regards to standards, rules, regulations, etc. - Check that the ground wire is securely connected.Connect a fuse of specified capacity.

11.2 ELECTRICAL WIRING CONNECTION FOR RASC-5/10HG8E The electrical wiring connection for the outdoor unit as shown below:

3. Tightly secure the wires inside the outdoor unit with a band.

Table for Terminal Connection: [Connection (Connection of Terminals)] [O.U.-O.U.(L1-L1, L2-L2, L3-L3, N-N)] Power Supply [I.U.-I.U.(L1-L1, N-N)] Operating [O.U.-I.U., I.U.-I.U.(1-1, 2-2)] Remote Controller R, CS-IV, IV-IV, A-A. B-B O.U.: Outdoor Unit, I.U.: Indoor unit Wiring

1. Connect the power supply wires to L1, L2, L3 and NP, for the three phase units on the terminal board and ground wires to the terminals, in the electrical control box. 2. Connect the wires between the Outdoor and Indoor units, Master units only for twin system, to terminals 1 and 2 on the terminal board. If the indoor unit power source wires are connected with the outdoor unit connect also them to terminals L and N to the terminal board.

 Power source Wiring  Operation wiring between Outdoor and Indoor Unit

4. Check the item below before turning ON the main switch. In case the power source is 415V (nominal voltage), change CN22 (connector) to CN21 of transformer (TF1) in the electrical control box as shown in figure below. Connector for 240 V

Connector for 220 V

5. Use factory supplied rubber bushes in order to protect wires from damages produced by hole edges  and 

ELECTRICAL WIRING

11.2.1 SETTING OF DIP SWITCHES FOR OUTDOOR UNIT ! Quantity and position of DIP Switches The PCB in the Outdoor Unit is operating with 5 types of DIP Switches, 1 Single Switch and 1 Push Switch. The location is as follows:

11/3

! DSW1: Test Operation and Option functions

settings ON Before shipment 1 2 3 4 5 6

! DSW2 Factory fixed settings ON Normal Operation 1 2 3 4

! DSW3: Capacity Settings 5HP

10HP

ON

ON

1 2 3 4

1 2 3 4

Setting position

! DSW4: Refrigerant Cycle no. settings ON

Before shipment 1 2 3 4

! DSW5 Transmitting settings ON

Before shipment 1 2

! PSW: Manual Defrost Press for Manual Defrost

11.3 COMMON WIRING

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

11.3.1 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 shown in Table of electrical data and recommended Wiring, Breaker Size/1 O.U. − In the case that a conduit tube for field-wiring is not used, fix rubber bushes with adhesive on the panel. − All the field wiring and equipment must comply with local and international codes.

11/4 ELECTRICAL WIRING

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

No.0 System Outdoor Unit

No.0 System Outdoor Unit Operating Line (Twisted Shielded Pair Cable or Shielded Pair Cable) DC5V (Non-Pole Transmission, H-LINK System) ELB

ELB

CB

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

CB

Indoor Unit

Indoor Unit

Indoor Unit

Remote Control Switch

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

Indoor Unit

(Max. 4 Units per Refrigerant Cycle)

(Max. 4 Units per Refrigerant Cycle)

11.3.2 WIRE SIZE ! Recomended minimum sizes for field provided wires: Power Source Cable Size Model

All Indoor Units RASC-5HG8E RASC-10HG8E

Power Source

Max. Current

220-240V/1φ/50Hz 380-415V/3φ/50Hz 380-415V/3φ/50Hz

5A 15 A 28 A

− The above wire sizes marked with  are selected at the maximum current of the unit according to the European Standard, EN60 335-1. − The above wire sizes marked with are selected at the maximum current of the unit according to the wire, MLFC (Flame Retardant Polyflex Wire) manufactured by HITACHI Cable Ltd. Japan.

Transmitting Cable Size

EN60 335-1

MLFC

EN60 335-1

MLFC









0.75 mm² 4 mm² 6 mm²

0.5 mm² 2 mm² 5.5 mm²

0.75 mm²

0.5 mm²

− In case that the power cables are connected in series, add each unit maximum current and select according to the next table. Selection according to EN60 335-1 Wire Size Current i (A) (mm²) 0.75 I≤6 1 6 < i ≤ 10 1.5 10 < i ≤ 16 2.5 16 < i ≤ 25 4 25 < i ≤ 32 6 32 < i ≤ 40 10 40 < i ≤ 63 63 < i 

Selection according to MLFC (at cable Temp. Of 60 ºC) Wire Size Current i (A) (mm²) 0.5 I ≤ 15 0.75 15 < i ≤ 18 1.25 18 < i ≤ 24 2 24 < i ≤ 34 3.5 34 < i ≤ 47 5.5 47 < i ≤ 62 8 62 < i ≤ 78 14 78 < i ≤ 112 22 112 < i ≤ 147  In case that current exceeds 63 A do not connect cables in series

ELECTRICAL WIRING

11/5

NOTE: - Follow local codes and regulations when selecting field wires, Circuit breakers and Earth Leakage breakers - Use the wires which are not lighter than the ordinary polychloroprene sheathed flexible cord (code designation H05RN-F) ! Select the main switches in according to the next table :

Power Source

Max. Current

CB(A)

ELB no. poles/A/mA

220-240V/1φ/50Hz 380-415V/3φ/50Hz 380-415V/3φ/50Hz

5A 25A 28A

6 32 32

4/40/30

Model

All Indoor Units RASC-5HG8E RASC-10HG8E

ELB: Earthleakage Breaker; CB: Circuit Breaker

11.3.3 H-LINK SYSTEM 1. Application The new H-LINK wiring system requires only two transmission wires connecting each indoor unit and outdoor unit for up to 16 refrigerant cycles, and connecting wires for all indoor units and all outdoor units in series. NOTE: The H-LINK system can not be applied to the cycle with the old model unit or the unit with old transmission

3. System Example of H-LINK Using H-LINK System For Only Air Conditioners: There are two typical cases of using H-LINK system; (1) Using H-LINK System For Only Air Conditioners, and (2) Using H-LINK System For Air Conditioners With Central Control Device, and the system examples are as shown below ! Line Connection with All units

Outdoor Units

This H-LINK system can be applied to the following models. Indoor Unit

RCI-"""FSNE RCD-"""FSNE RPC-"""FSNE RPI-"""FSNE RPK-"""FSNM/FSN1M RPF-"""FSNE RPFI-"""FSNE

Do not make wiring in a loop

Outdoor Unit

RASC-"""HG8E

Indoor Units

! Line Connection for Each Floor

2. Features The H-LINK has the following features and specifications: ! Features:

Outdoor Units

− The total wiring length is remarkably reduced. − Only one connection is required for the wiring between the indoor unit and outdoor unit. − Easy wiring connection to the central controllers ! Specifications:

− Transmission Wire: 2-Wire

Indoor Units

− Polarity of Transmission Wire: Non-Polar Wire − Maximum Outdoor Units To Be Connected: 16 Units per H-LINK system.

− In case that H-LINK is not applied when electrical wiring is performed

− Maximum Indoor Units To Be Connected: 16 Units per cycle and 64 Units per H-LINK system

Outdoor Units

− Maximum Wiring Length: Total 1000m (including CS-NET) − Recommended Cable: Twist Pair Cable with Shield, over 0.75mm2 (Equivalent to KPEV-S) − Voltage: DC5V

Indoor Units CS-NET

11/6 ELECTRICAL WIRING NOTE: Do not make a wiring in a loop. In the case that H-LINK is not applied after the when electrical wiring is performed as shown above, HLINK is applied after the instrument wiring is completed. Therefore, the dip switches are required to be set according to “Setting of Dip Switches on PCB”.

4. Dip Switch Setting of Indoor PCB and Outdoor PCB. It is required to set dip switches of every indoor unit and outdoor unit

11.3.4 SINGLE, TWIN, TRIPLE AND QUAD DIP SWITCH SETTING − Dip Switch Setting (No H-Link example:) SINGLE

TWIN

TRIPLE

QUAD

− Dip switch setting (H-Link example) Cycle No 0 Before Shipment

Cycle No 1 Cancelation

Cycle No 2 Cancelation

Mark

     

Description DSW5 (End Terminal Resistance) DSW4 (Refrigerant Cycle) Outdoor Unit Indoor Units DSW5 (Refrigerant Cycle) RSW (Indoor Unit Address)

ELECTRICAL WIRING

Unit

Name of Dip Switch

Mark

Refrigerant Cycle

DSW4

ON 1 2 3 4

Outdoor Unit

Indoor Unit

Setting Before Shipment

End Terminal Resistance

DSW5-1P

Refrigerant Cycle

DSW5

Indoor Unit Address

RSW

ON 1 2

ON 1 2 3 4

0

11/7

Function

For setting refrigerant cycle address of outdoor unit. Set the DSW4 not to overlap the setting of other outdoor units in the same H-LINK system For matching impedance of transmission circuit. Set the DSW5 according to the quantity of outdoor units in the H-LINK system. Setting of End Terminal Resistance Before shipment, No.1 pin of DSW5 is set at the “ON” side. In the case that the outdoor units quantity in the same H-link is 2 or more, set No.1 pin of DSW5 at the “OFF” side from the 2nd unit. If only one outdoor unit is used, no setting is required. For setting refrigerant cycle address of indoor unit. Set the DSW5 corresponding to the address of outdoor unit in the same refrigerant cycle. For setting indoor unit address. Set the RSW not to overlap the setting of other indoor units in the same refrigerant cycle.

AVAILABLE OPTIONAL FUNCTIONS

12/1

12 AVAILABLE OPTIONAL FUNCTIONS This chapter gives a brief explanation of the available optional functions, for Indoor Units and Remote Controllers available functions refer to TCGB0033 about Hitachi UTOPIA G8 Series.

CONTENTS 12

Available Optional Functions_________________________________________________ 1

12.1.

RASC-5/10HG8E Available Optional Functions __________________________________ 2

12/2 AVAILABLE OPTIONAL FUNCTIONS

12.1. RASC-5/10HG8E AVAILABLE OPTIONAL FUNCTIONS

Optional function

Useful explanation

When this function is activated the compressor is stopped and the indoor units are put under Thermo-OFF condition. This function changes the defrosting operation conditions. It is specially interesting for Defrosting Condition Change Over cold areas. This function allows to increase the limit outdoor temperature in heating mode and Release ambient temperature Limit cooling mode. This function activates the Indoor fans as a cycle (2 min ON, 6 min OFF) in order to Defrost indoor unit fan speed reduce the unpleasent aspects of Indoor Thermo-OFF working conditions. Demand thermo off

TROUBLESHOOTING

13/1

13 TROUBLESHOOTING This chapter provides you with a concise description of the most common alarm codes of the Hitachi UTOPIA G8 Series. For more information about Troubleshooting data refer chapter 8 of SMGB0033.

CONTENTS 13

TROUBLESHOOTING _____________________________________________________ 1

13.1.

Alarm Codes _____________________________________________________________ 2

13/2 TROUBLESHOOTING 13.1. ALARM CODES If RUN lamp flashes for 2 seconds, there is a failure in transmission between Indoor Unit and Remote Control Switch. Possible causes are:

If RUN lamp flashes 6 times (5 seconds) with unit number and alarm code displayed, note the alarm code (see table below) and ask your contractor for service. Unit Number

! Remote Cable broken ! Contact Failure in Remote Control Cable ! IC or Microcomputer defective In any case, ask your contractor for service

Alarm Code

Refrigerant Cycle Number

Model Code

Number of connected Units

" Alarm Codes Code

Category

Contents of Abnormality

Leading Cause

 

Indoor unit Outdoor Unit



Transmission

Safety Device of the Indoor Unit is tripped Safety device of outdoor unit is tripped Abnormality between Indoor and Outdoor Unit (or Indoor) Abnormality of Power source wiring Abnormality high temperature in the top of comp. Inlet Air Thermistor Outlet Air Thermistor Freeze protection Thermistor Fresh Outdoor Air Thermistor (Econofresh) Tripping of Protection Device for Fan Motor Top Compressor Thermistor Outdoor Air Thermistor Evaporating thermistor (defrosting) Incorrect Setting of Outdoor and Indoor Unit

Failure Float Switch PCB High pressure Switch, failure of fan Motor Incorrect wiring, failure of PCB, tripping of Fuse. Power supply off. Reverse phase incorrect wiring Insufficient Refrigerant. Ref-leakage, clogging capillary

          

Cycle

Sensor on Indoor Unit

Sensor on Outdoor Unit

Failure of Thermistor, sensor, connection

Failure of Fan Motor Failure of Thermistor, sensor, Connection Incorrect Setting of Capacity Code.

Incorrect Setting in Indoor/Outdoor Unit No.

Existence of the same Indoor Unit No. in the same refrigerant cycle



Abnormality of Protective Circuit in Outdoor Unit

Failure of Indoor Unit PCB. Incorrect Wiring Connection to PCB in Outdoor Unit.



Abnormality of Running Current at Compressor

Overcurrent, Melted Fuse or failure of current sensor.



Excessive Overload during Cooling Operation

Heat Exchanger Airflow obstacle, short circuit and locked fan motor.

 System

   

Pressure

Sensor on the KPI Unit

Excessive Overload during Heating Operation Low pressure Decrease Protection Activating Room temperature thermistor Outdoor temperature thermistor

Heat Exchanger Airflow obstacle, short circuit. Insuficient refrigerant. Refrigerant Leak (Hex Lock). Failure of Thermistor, Sensor ,Connection.

HITACHI is participating in the EUROVENT Certification Programme. Products are as specified in the EUROVENT Directory of Certified Products.

Hitachi Air Conditioning Products Europe, S.A. Ronda Shimizu, 1 - Políg. Ind. Can Torrella 08233 Vacarisses (Barcelona) España ISO 9001 certified by AENOR, Spain ISO 14001 certified by AENOR, Spain

Hitachi Air Conditioning Systems Operation Shimizu-shi, Shizuoka-ken, Japan ISO9001 certified by JQA, Japan ISO14001 certified by JQA, Japan

Hitachi Air Conditioning Products (M) Sdn. Bnd. Lot No. 10, Jalan Kemajan Bangi Industrial Estate 43650 Bandar Baru Bangi, Selangor Darul Ehsan, Malaysia Certification ISO 9001, Malaysia Certification ISO 14001, Malaysia

TCGB0037 - rev.0-12/05 - Printed in Spain