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
Loisa has held great responsibility in the Veturi building services
project. The comfortable conditions are largely to his credit. Image:
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.
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
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.
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.
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
-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.
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
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.
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
- 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
typical user locations for the use of the SMART Vari™ standard
air-conditioning machines are IT-premises, electronics, measurement and
- 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.
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.