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  • VARI PRO™ ROOM CONTROLLER
    - DESIGNED FOR USERS

    Vari PRO™ room controller provides an amazing user experience. It gives direct feedback on energy consumption and service requirements for the user.
     
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  • VARI PRO™ ROOM CONTROLLER
    - DESIGNED FOR USERS

    Vari PRO™ room controller provides an amazing user experience. It gives direct feedback on energy consumption and service requirements for the user.
     
    Read more >
  • VARI PRO™ ROOM CONTROLLER
    - DESIGNED FOR USERS

    Vari PRO™ room controller provides an amazing user experience. It gives direct feedback on energy consumption and service requirements for the user.
     
    Read more >
  • PLEASANT INDOOR CLIMATE AND ENERGY EFFICIENCY
    BOX Vari™ -cassette fan coils are ideal for public spaces, hotels and demanding residential sites. Units are regulated by Vari PRO™ -wall controllers which are connected to the Service Next™ -service. These units, based on EC-technology, ensure the best internal ventilation, high efficiency and up to 80% savings in energy expenditure.
     
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  • PLEASANT INDOOR CLIMATE AND ENERGY EFFICIENCY
    GRAND Vari™ -fan coils and hotel convectors are ideal for public spaces, hotels and demanding residential sites. Units are regulated by Vari PRO™ -wall controllers which are connected to the Service Next™ -service. These units, based on EC-technology, ensure the best internal ventilation, high efficiency and up to 80% savings in energy expenditure.
     
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  • OPTION SELECTION PROGRAM
    Our portal system gives customers a centralized Service Next™ system, Option –selection program and, for our service contract customers, a maintenance monitoring solution.
     
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  • COMPREHENSIVE SERVICE, UNIT OPTIMIZATION AND SAVINGS
    Service Next™ brings our customers ease of use, reduced expenditures and makes total lifecycle management and optimization possible by allowing customers to react fast to change.
     
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  • RESEARCH, TESTING AND CUSTOMER ORIENTED APPROACH IN DESIGN
    Chiller Oy is one of Europe’s leading manufacturer of energy efficient and functional cooling and heating solutions. The high quality of our products is based on our own research and development in all aspects of the manufacturing process. Lifecycle assessment and material recycling is always considered throughout manufacture.
     
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  • PRECISION AND STANDARD AIR-CONDITIONING UNITS
    SMART Vari™ -systems offer optimal precision and standard air conditioning. The units are based on EC-fan motor solution, which improves efficiency ~ 10%. Over 50% energy savings are achieved with new compressor technology and electronic expanding valves. Units are available with either DX- or water radiator.
     
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  • HEAT PUMP SOLUTION DESIGN AND IMPLEMENTATION
    Chillquick Thermo™ is a revolutionary series of heat pumps which enable flexibility and energy efficiency as never before. Two-way units both chill and heat. Chillquick Thermo™ series can fulfill all site needs up to 2000kW. Chillquick Thermo™ -heat pumps can be connected to the Service Next™ -service.
     
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  • INNOVATIVE AIR-CONDITIONING SOLUTIONS FOR DEMANDING SITES
    Chiller Oy is one of Europe’s leading manufacturer of energy efficient and functional cooling and heating solutions. The high quality of our products is based on our own research and development in all aspects of the manufacturing process. Lifecycle assessment and material recycling is always considered throughout manufacture.
     
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  • FRESH NEWS FROM
    THE HVAC FIELD!
    At the Green Future magazine we report the current issues in the field, our projects, our customers and products.
     
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  • CHILLQUICK™ -WATER CHILLERS AND -COLD WATER STATIONS
    Modular solutions with free cooling and precise control of functions. Environmentally friendly and customer specified Chillquick™ -water chillers and cold water stations are manufactured from factory tested modules. Multiple standardized tests are carried out during assembly, in addition to a full scale test run with customer specified parameters.
     
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The perfect setting for shopping

The opening last September of the largest and most modern shopping centre in Southeast Finland, Shopping Centre Veturi, provides the perfect conditions for shopping. The air-cooling of the shops is carried out by Chiller BOX Vari™ -cassette fan coils ideally situated in the ceiling structures.


Juha Loisa has held great responsibility in the Veturi building services project. The comfortable conditions are largely to his credit. Image: Aki Loponen

The moving symbol of the Shopping Centre Veturi, located along main road 6, is a steam train, Little-Jumbo, that used to serve VR and comes from famous Finnish long-distance runner Martti Vainio's steam train park located in Haapamäki. Regardless of its compact size, the Little Jumbo weighs 52 tons. Then again, despite its giant external dimension, Shopping Centre Veturi is quite easy to perceive when inside. The curved form only reveals a small enough section of the entirety at one time. A department store K-Citymarket is located at one end and a modern ironmonger´s K-Rauta at the other end. In between the shopping centre offers specialty shops and a restaurant world for all tastes.

If the spacious and light premises of the Shopping Centre Veturi provide visitors with a sense of déjà vu, the customer must certainly have visited the Shopping Centre Karisma, which was completed in Lahti at the beginning of the year. The architect Rainer Linderborg has utilised experiences from implementation of mega-class shopping centres. The Finnish trading sector company Kesko has, in recent years, invested in improving its shopping centres and shopping environments. Veturi, with its 100 M€ costs, belongs to Kesko´s largest individual retail investments. With its two floors, Veturi has 48 000 square meters of leasable premises altogether and about 80 stores. It is also the sixth largest shopping centre in Finland. The Shopping Centre Veturi was constructed using the project management service model of the consultancy firm Pöyry CM Oy. Pöyry were responsible for the management of the entire construction project and the guidance of the designing process, acquisitions, the management of the construction worksite and occupational safety, as well as the main builder obligations.

Cooling required
Just weeks to the September opening of the shopping centre, the corridors and shop premises are quite busy. Interiors are being finished and products carried inside. The pervading smell of new textiles fills the air in fashion stores.
"Textile dust is easily created in shops selling clothes and textiles. The cassette fan coils taking care of the cooling and air-conditioning of the shop premises have hard work to do. The filters have to be have to be changer regularly", says the HVAC supervisor Juha Loisa from Pöyry. "Fortunately is easily done with these Chiller BOX Vari™ -cassette fan coils", he points out.

A BOX Vari™ -Cassette contains a large pleated filter instead of a normal filter, which is efficient even in these challenging conditions. A cartridge fan coil is well suited to ceilings, as there is no need to move boards to the side during maintenance times. The conditions in the shopping centre are relatively constant, but individual differences are large. The lighting in the shops causes large heat burdens and cooling is required even during the winter season. Mere cooling through ventilation would not have efficient enough, so premises specific adjustable fan coils were required. The cooling of Veturi´s air-conditioning during summertime utilises free cooling. There are a total of 330 Chiller BOX Vari™ cassette fan coils in the shops, of different sizes and powers, with controllers, single and double-mounted. The technical areas, such as for IT, substations and transformers have standard air-conditioning equipment (CWUC120) in use. The condensation water of the cassette fan coils can be handled, either by pump or free drainage. The dimensioning of Veturi was carried out with great care.

"A separate drain, leading from 330 machines, would have been too cumbersome and not a very aesthetic solution in an open ceiling system. On the other hand, the experiences of using pumps have not always been promising. Power determinations have to be precise, so that drainage is not needed. It requires precise control, in respect of the dewpoints", Loisa points out.

Energy efficient entirety
BOX VariTM -cassette fan coils were not only selected for the Shopping Centre Veturi for their practicality, but also due to their energy efficiency. The energy consumption of an unit in a normal room is a mere 6 W. The energy efficiency of all of the solutions that are used in Shopping Centre Veturi were really under the spotlight, since Kesko is committed to the principles of social responsibility, by investing in the energy efficiency of their business and working premises.

"We work hard to provide our clients with sustainable consumption patterns. The reduction of our own environmental impact is also very important", stresses Shopping Centre Manager, Jari Koistinen.

The starting point in the planning of the Veturi´s building systems was its environmental sustainability and energy efficiency. Veturi´s geothermal heat system is capable of producing about half (1.5 MW) of the shopping centre´s required heating energy, and geothermal heat, in fact, already provided heat during the construction period.

"All in all, 110, about 200 m deep holes, were drilled in the real estate plot for the geothermal heat system. The heat production has proved to be very good in deed. The system produces a water temperature of 50 °C. In summertime we are able to fill back the field using the condensation heat from the premises", says the department manager of Pöyry´s Building Solutions Department, HVAC expert, Jorma Asikainen.

The condensation heat of the shops´ refrigeration systems is also recovered. District heating is only used during very cold temperatures.

Environmental classification helps planning
The energy efficiency and environmental sustainability of the Shopping Centre Veturi will be, on its completion, in accordance with the BREEAM environmental assessment method. BREEAM (Building Research Establishment's Environmental Assessment Method) is the most globally used real estate assessment method, which can be used to decrease a building´s operating costs, as well as improve working and living conditions. Achieving this classification is also recognition of the building´s low environmental burden.

In the BREAAM classification, buildings are evaluated on the basis of seven different subject groups. With the total points achieved, the building can be granted the grades, passed, good, very good or excellent. BREEAM is suitable for the evaluation of all building types. The classification can also be given to existing buildings.

Other existing environmental rating systems are the American LEED (Leadership in Energy and Environmental Design), the Finnish PromisE and the, under trial, Architects' Council of Europe Open House.




Chillerin delivery to Veturi

BOX Vari™ -cassette fan coils are highly energy efficient and consume less energy than a LED-lamp. The roof directed air control of the revolutionary EC-lattice guarantees a pleasant and draft free interior climate.
  • The new EC-grille allows for substantial energy savings
  • A pleasant climate, no draft feeling
  • Fan and valve adjustment from 0 ... 100%
  • 50% less maintenance costs
  • Modbus interface as standard
  • Long intervals between filter maintenance
  • Plug-in connection

The typical user locations for the use of the SMART Vari™ standard air-conditioning machines are IT-premises, electronics, measurement and testing rooms.
  • The appreciable temperature coefficient is as high as possible and the floor area that is required by the machine is as little as possible.
  • Any necessary maintenance procedures can be performed through the machine´s front panel.
  • The microprocessor adjustment that is used to control the machine is user friendly and keeps the room conditions within the desired limits.
  • It is possible to obtain different levels of filters for the units according to desired requirements.
  • The low noise level allows free placement of the units.
  • The equipment is intended for continuous operation.






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