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PARK PLAZA HOTEL

APPLICATION: HOTEL

SIZE M2: 10 793m2

LOCATION: Maid Marian Way, City Centre, Nottingham, UK.

AGE (NEW/RE-FURB): New hotel refurbished from old BT offices

which had lain empty for 10 years

OCCUPANCY: Park Plaza Hotel 176 Rooms, Leisure Center, Restaurant

and 160 capacity conference facility

PURPOSE/USE: Business Accommodation

INTERESTING FACTS: Park Plaza Hotels have 3 London Hotels, the new Nottingham development

and two further major hotels in development, one on the riverbank in London

and the other in Leeds

DISTRIBUTOR: SWM Distribution Ltd.(Nottingham branch)

CONTRACTOR/INSTALLER: Mitie Air Conditioning (Midlands) Ltd.

PROJECT DATE: Design proposal commenced January 2001 installation completed August 2002

SYSTEM: Hitachi Set Free VRF FSG (2-Pipe) using R407c refrigerant

INDOOR UNITS: 176 ceiling void fan coil units

OUTDOOR UNITS: 11 x RAS-8FSG and 11 x RAS-10FSG heat pump

CONTROL SYSTEM: CS Net

PROJECT DESCRIPTION

As the hotel was very conscious of budget,original designs did not include air conditioned

heating in the rooms as they planned to use the existing boiler plant facilities. Mitie identified

that this would put too much strain on the existing plant and that it would be more economical

to install Hitachi 2 Pipe Set Free to service the new bedroom facilities whilst the existing plant

supplied hot water to the rooms.

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SET FREE VRF RANGE

PRODUCT RANGE

FSG

The FSG (2-pipe) series is available in 5, 8, 10, 16, 20, 24 and 30 HP outdoor unit

sizes, with an increased choice of indoor unit types. All systems are compatible

with an increased range of remote control options, which includes the advanced

function wired controllers, and the all new wireless remote controller as an option.

The new outdoor unit design, featuring a newly refined Hitachi compressor, alliedto the high performance heat exchangers, and the improved inverter control

condenser fan produces not only one of the quietest outdoor units available today,

but also one of the smallest, an amazing 35% smaller than previous models.

FXG

The FXG (3-pipe) series is currently available in 8 and 10HP versions. The 3-pipe

Hitachi VRF system, which boasts simultaneous heating and cooling, builds on the

advanced technical innovation common throughout the Hitachi Air Conditioning range.

The outdoor units, which incorporate the unique Hitachi high pressure scroll

compressor, offer unparalleled reliability, and together with the high efficiency

heat exchanger and the pulse width modulation control of the condenserfan offer the user significant reductions in outdoor unit sound

pressure levels. The outdoor unit is now 35% smaller than

previous models and weighs 16% less, offering greater

flexibility for installation.

Hitachis range of Set Free Variable Refrigerant Flow systems has developed tremendously in recent years, following significant

investment in research and testing facilities at Hitachis factories and laboratories. Set Free VRF is designed to successfully meet the

increasing requirements and complex operating conditions of intelligent building air conditioning.

HEAT PUMP VRF

R407C REFRIGERANT

A CHOICE OF 8 INDOOR UNIT MODEL TYPES AND MULTIPLE CAPACITIES

SIMULTANEOUS HEATING AND COOLING (3-PIPE)

ALTERNATE HEATING OR COOLING (2-PIPE)

HITACHI HIGH PRESSURE SCROLL COMPRESSOR

HIGH EFFICIENCY HEAT EXCHANGER

NEWLY DEVELOPED OUTDOOR UNITS ARE 35% SMALLER AND WEIGH 16% LESS THAN PREVIOUS DESIGNS

HIGHLY SOPHISTICATED CONTROL AND NETWORK SYSTEM: CS-NET

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TECHNICAL DATA

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The Hitachi Samurai Range is available in capacity ranges between 100 kW and 1100 kW and is manufactured and tested at the state of

the art production facility, HAPE, near Barcelona, Spain. Hitachi has undertaken significant investment in further production capacity at the

factory and have also installed and commissioned a chiller performance test facility, together with all load generating ancillaries and PC

based measurement, recording and reporting capabilities.

LOW SOUND LEVEL AND VIBRATION

The Samurai Chillers operate at very low sound and vibration levels, due to the

precise machining and meticulous assembly methods employed in their construction.

The compressors are installed on rubber anti-vibration mountings in a separate

enclosure. Additionally low noise 8 pole fans and extra acoustic insulation can be

specified if required.

CONTINUOUS CAPACITY CONTROL

The continuous Capacity control system uses advanced electronic controls to

position the infinitely variable slide valve within each compressor. This modulation

allows exact load control and accurate chilled water temperature without the need

for expensive inverters.

ENERGY SAVING

Due to continuous capacity control, 15-20% energy saving is possible comparedwith current step control systems this is because: The cooling load can be more

closely matched allowing highly efficient part load performance and eliminating

frequent compressor stop starts.

LOW STARTING CURRENT

All compressors include star delta starting method as standard in order to

keep the starting current to a minimum. In addition the compressors are started

sequentially (beginning with the compressor with the lowest run hours) at their

minimum loading 25%

PRECISE TEMPERATURE CONTROL

The combination of Hitachis continuous capacity compressor and unique

electronic controls enable the chiller to control outlet water temperature precisely

and independently of cooling load. This control is of benefit for both air conditioning

and industrial process applications.

COMPACT FOOTPRINT

The Samurai Chiller achieves one of the smallest footprints in its class by

utilising plate heat exchangers and Hitachis patented slit fin heat exchangers.

BMS INTEGRATION

The Samurai is able to communicate with BMS systems through the Lonworks

open protocol via a HARC70C interface.

CHILLER RANGE

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TECHNICAL DATA

*Cooling only Range

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U6-BUSINESS-CENTER

PROJECT DESCRIPTION

The VRF-FSG System installed has dual usage as it also provides heating for

the building no additional heating system is installed.

TVG have also installed for 49 circuits 980 multi-kits with 1960 shutoff valves

(per circuit app. 20 multi-kits). This allows greater flexibility for creating individual

offices, as the U6-Center is new building without any dividing walls inside

each floor and the tenant has the possibility to create the layout of the rooms

to their requirements.

APPLICATION: OFFICE

SIZE (M2) 16,000 m2

LOCATION 49 Lembckgasse, 23rd district, Vienna, Austria.

AGE (NEW/RE-FURB) New Building

OCCUPANCY 15,200 m

2

PURPOSE/USE Offices

DISTRIBUTOR TVG

PROJECT DATE 2000

SYSTEM Set Free VRF FSG (2-Pipe) using R407c refrigerant

INDOOR UNITS 502 (RPF-1.0 and RPF-1.5FSG)

OUTDOOR UNITS 47 (33 x RAS-16FSG and 14 x RAS-10FSG)

CONTROL SYSTEM CS-NET

CAPACITY Cooling Capacity 1.881 kW, Heating Capacity: 2.106 kW

ADDITIONAL COMMENTS The design brief for the project was to create a combined cooling and heating system whilst

maintaining flexibility for the layout of the rooms.

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SACHSENRING RACING TRACK

APPLICATION: LEISURE

LOCATION Germany

AGE (NEW/RE-FURB) New Building

PURPOSE/USE Team and Business Management offices and guest entertainment facilities overlooking the

famous Sachsenring race track.

INTERESTING FACTS Sachsenring is one of the most famous racing arena in Germany, utilised regularly for

traditional DTM and motorbike championship competitions.

DISTRIBUTOR Polenz Klima

SYSTEM Set Free FSG VRF (2-Pipe) using R407c refrigerant

INDOOR UNITS 21 Indoor Units

Comprising: 11 x 2-way cassettes (RCD-1.0FSG)

10 x KPI-802 Total Heat Exchangers

OUTDOOR UNITS 2 x Set Free RAS-8FSG

PROJECT DESCRIPTION

The Hitachi Set Free VRF FSG (2-pipe system) has been installed in a new five floor building where all management are located.

Racing activities and the course itself are all controlled and monitored from this area, therefore it is vital that the air conditioning

helps to maintain an even temperature in the midst of a stressful race event!

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ARWAG - TOWER

APPLICATION: OFFICES

SIZE (M2) 2.100 m2 - 34 floors

LOCATION 22nd district, Vienna, Austria.

AGE (NEW/RE-FURB) New Building

OCCUPANCY 1200 m

2

- 4 of 7 floors.

PURPOSE/USE offices

INTERESTING FACTS The Arwag Tower ia a dual purpose building consisting of offices and luxury apartments. It is located

in a business area along with the UNO-City and The Vienna International Center (OPEC, International

Atomic Authority)

DISTRIBUTOR TVG

CONTRACTOR/INSTALLER Installed by TVG

CONSULTANT/SPECIFIER TVG

PROJECT DATE 2001/2002

SYSTEM Hitachi Set Free VRF FSG (2-Pipe) using R407c refrigerant

INDOOR UNITS 54 units (comprising of RPK wall mounted units and RPC Ceiling Suspended units)

OUTDOOR UNITS 14 x RAS-5FSG

CONTROL SYSTEM CS-NET

CAPACITY 203 kW

PROJECT DESCRIPTION

To avoid disruption during the installation, the piping for the system was completed during

the building phase, along with the installation of as many outdoor units as possible. As further

areas of the building are rented additional outdoor units can be brought in via the window

onto the specially constructed 9th floor terrace.

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JOHN LEWIS

APPLICATION: RETAIL

LOCATION: Bluewater Shopping Centre, Kent, UK.

AGE (NEW/RE-FURB): New Building

PURPOSE/USE: Shopping Centre

INTERESTING FACTS: John Lewis Bluewater carries the full department store product range and trades on three floors soshoppers tend to spend relatively long periods of time in the store. Consequently efficiently maintaining

a comfortable internal environment for both staff and customers is important for the company

DISTRIBUTOR: Climate Equipment Ltd

PROJECT DATE: 2001

SYSTEM: Hitachi Samurai Chiller

OUTDOOR UNITS: 4 x Hitachi Samurai Chillers: 3 x 686kW, roof mounted and providing chilled water to air handling units

serving a variable volume system supplying the sales areas of the store. 1 x 260kW, serving a fan coil

system providing conditioned air to the staff office areas

CONTROL SYSTEM: A central control system adjusts chilled water flow to match the requirements of the conditioned spaces

ADDITIONAL COMMENTS: As the chillers are roof-mounted, noise and vibration were additional considerations which were met

by the patented double-case design of the Samurai, the inherently quiet operation of Hitachi screw

compressors and rubber anti-vibration mountings

PROJECT DESCRIPTION

In line with John Lewis environmental policies, energy efficiency was a major consideration in the specification of the chillers, as wellas the use of environmentally friendly refrigerant R407c. The fully modulating Samurai chiller provides excellent efficiency levels, an

economical price and ultimate reliability.

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INNO NV-SA

APPLICATION: RETAIL

LOCATION: Namur, Liege, Mechelen Belgium

AGE (NEW/RE-FURB): Refurbishment

PURPOSE/USE: Major Belgian retail outlet chain

DISTRIBUTOR: Conticlima NV-SA

CONTRACTOR/INSTALLER: Axima Refrigeration NV-SA

PROJECT DATE: 2002

SYSTEM: Hitachi Set Free VRF FSG, using R407c refrigerant

INDOOR UNITS: Namur: 40 x RCI 4-way cassettes. Liege: 71 x RCI 4-way cassettes.

Mechelen: 32 x RCI 4-way cassettes

OUTDOOR UNITS: Namur: 2 x RAS10FSG and 4 x RAS20FSG. Liege: 2 x RAS10FSG,

1 x RAS16FSG and 11 x RAS20FSG. Mechelen: 1 x RAS8 FSG and 4 x RAS20FSG

CONTROL SYSTEM: CS-Net in all locations

PROJECT DESCRIPTION

Having been taken over by Kaufhof AG-Kln in 2001, the German stock market noted giant

in this line of business (150 shops, generating a turnover of over 4 billion Euros per year)

INNO NV-SA identified the need to refurbish their stores according to the standards of the

new parent company.

HITACHI Set Free was selected upon the installers advice. Paul Van den Kieboom, projectmanager for Axima Refrigeration NV-SA (a member of French multinational SUEZ-group)

explains: "Starting from the SUEZ-group strategy to aim for energy saving solutions, with

the highest possible reliability, along with the best Facility Management tools, the choice

of brand and system for these applications has been very easy. HITACHI Set Free VRF,

built on their unique scroll compressors and combined with the immense HITACHI

experience in inverter technology was and is the most logical answer to fulfill the

heating and air conditioning in this kind of application. The CS-Net software controlling

and monitoring these systems, makes it as user-friendly and complete as today possible".

The speed of integrating the systems in the existing buildings while in use has charmed

the end-user while customers continued to enjoy their shopping without disruption.

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GUYLIAN

APPLICATION: PROCESS

AGE (NEW/RE-FURB): Refurbishment

PURPOSE/USE: Speciality Chocolate Production

DISTRIBUTOR: Conticlima NV-SA

CONTRACTOR/INSTALLER: Lemmens Refrigeration

PROJECT DATE: 2000

SYSTEM: Hitachi Samurai Chiller, using R407c refrigerant

OUTDOOR UNITS: RCUE80AG, equipped with 240HP compressors

PROJECT DESCRIPTION

The Hitachi Samurai chillers were selected as being identified as being totally suited to the job requirements. Reliability is vitalin this line of business; having to execute an emergency stop on a production in process can be a real disaster, not in the least

regarding the clear-up operation necessary before restarting the line.

Furthermore, the heat loads in these kinds of process can vary enormously and heat load can rise extremely quickly, the process

temperature must be precisely maintained and thus the chilled water temperature is very important in order to maintain the highest

possible quality standards of the final product.

The fully modulating capacity control on all HITACHI Twin Screw compressors together with the special HITACHI microprocessor

controls exceed these requirements.

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SPORTING HOTEL

APPLICATION: HOTEL

SIZE M2: 9 Floors

LOCATION: Rimini, Adriatic Riviera, Italy.

AGE (NEW/RE-FURB): Refurbishment

OCCUPANCY: 90 double guest rooms

PURPOSE/USE: Hotel

INTERESTING FACTS: The Sporting Hotel Rimini, is known worldwide as one of the

best hotels in its prime location on the Adriatic Riviera

DISTRIBUTOR: Green Air Srl

SYSTEM: Rooms: Set Free VRF FS. Other Areas: Utopia and Econofresh

INDOOR UNITS: Rooms: Combination of 90 x RPI ducted units and RCI 4-way cassettes.

Other Areas: 10 x RCI 4-way cassettes and 7 x Econofresh systems

OUTDOOR UNITS: 8 x Set Free VRF RAS10FS, 10 x Utopia Condensing units

CONTROL SYSTEM: Rooms: PC-5H, Reception/bar: PC-2H2 CS-Net

PROJECT DESCRIPTION

Sporting Hotel, a world renowned hotel on the Adriatic Riviera, has been completely reconstructed, including all the water, lighting

and heating systems. The building has in total nine floors, reception and bar on the ground floor, restaurant and meetings rooms

on the first floor and seven floors of guest rooms.

For the air conditioning system, the hotel management selected the Hitachi solution:

a complete and varied project, developed adopting almost all the different solutions

available in the Hitachi range including Set Free VRF, Utopia Split Systems and Room

Air Conditioners.

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