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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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Saint-Gobain Construction Products

Saint-Gobain Rakennustuotteet Oy was looking for the most energy-efficient alternative for heating its modern production facilities. Previously, the production facilities in Forssa were heated using district heating and oil. For its new heating system, the company selected the Chillquick Thermo™ heat pump manufactured by Chiller Oy.


Heat pump with Service Next overall concept.

The goal of the energy efficiency agreement driven by the Ministry of Employment and the Economy is to reduce consumption of energy in various sectors of the business life by at least 9 % by 2016. The energy efficiency program aims at significant savings in energy consumption through enhancing the energy consumption of buildings. This lowers carbon dioxide and other greenhouse emissions and contributes to preventing the climate change.

District heating to minimum

The Chillquick Thermo™ heat pump has been responsible for heating the production premises since the beginning of September 2009, and it was noticed quickly that the consumption of district heating had dropped to the minimum.
The maintenance manager Totti Könkö of Saint-Gobain Rakennustuotteet Oy says that savings have already been achieved. This is an obvious advantage to the Forssa factory, as the company owners in the headquarters in France monitor the energy costs of the factory in addition to the other key figures.

Expectations on the efficiency of the heat pump were high in the factory that manufactures mineral wool products (the product range includes ISOVER building insulation). "The heat pump would replace at least 50% of the annual consumption of district heating, in which case the repayment period would be 1 to 2 years," they calculated. "In 2008, the energy consumption of the factory was 2,300 MWh (corresponding to approximately 290,000 litres of heating oil), and in the future, we hope to cut the consumption by half," says maintenance manager Könkö.

"The maximum heating capacity of our heat pump is 250 kW. We will have reached our goal if it replaces one half of our demand for heat energy," he continues. The heat pump is used to recover the process waste heat, i.e. the cooling energy generated by the manufacture of insulation wool, and the generated heat is used to heat the building. This waste heat is at a remarkably higher temperature than the heat source of a conventional terrestrial heat pump.

Producing the heating energy, in this application 1,150 MWh, with a heat pump requires less than 250 MWh of electricity. In addition, the service water of the building is received "thrown in" from the heat pump. It is taken from the system with so-called desuperheating. The water received from desuperheating exchangers is at a temperature of around +70 to +80°C, and it is conducted to the upper part of the hot-water tank. The service-water heating coils in the tank are used to heat the actual service water and, if necessary, the existing district heating exchangers are used for final heating.

Reliability with remote monitoring

Chiller Oy invests in remote monitoring of its devices. Remote monitoring can be used the monitor the functions of a customer´s heat pump, prevent malfunctions and optimise the operation of the device.

In Forssa, only a communications card, which was connected to the Internet, was added to the basic controller of the device. The communications card sends all its events and measurements to the remote monitoring server that can be accessed at any time via Internet. The Chiller Service Next™ remote monitoring system is then available to all user groups without separate control-room software.

The temperature level of the process waste heat changes very quickly. With monitoring, it was easy to adjust remotely the relief valve inside the device at the Forssa factory of Saint-Gobain Rakennustuotteet Oy in order to achieve an optimal and steadily safe temperature level for the device. With remote monitoring, any alarms can be forwarded to the e-mails or phones of the correct persons. The system sends the customer a monthly report that shows the device utilisation rate, start-ups, alarms, service requirements etc.

The heat pump has a unit with four double-circuit compressors and desuperheating exchangers. The heat pump is connected to a 3,000-litre hot water boiler that has two heavy-duty LK120 service water coils. The boiler has been divided with a compensator plate into two parts so that the upper part of approximately 1,000 litres is kept at a higher temperature using the heat from desuperheating.

The building´s need for peak power is significantly higher than the power of the heat pump. Nevertheless, it is assumed that the heat pump will cover up to one half of the building's heat demand. The heat pump boiler is connected to the return side of the building´s heating system so that the heat pump always heats the water returning from the heating system. When the heat demand exceeds the capacity of the heat pump, the missing portion is covered with district heating. Service water is also pre-heated in the coils of the boiler, and district heating is used for final heating, if necessary.


CASE Saint-Gobain, Forssa, Finland

  • Heat pump Chiller Chillquick Thermo™ CHT-48-4D-P1-P3-P6-SHE
  • Process cooling/HR power 195.8 kW at a flow of 7.8 kg/sec at a temperature level of +23℃/+17℃
  • Heating power 248.8 kW at a flow of 9.9 kg/sec at a temperature level of +49℃/+55℃
  • Desuperheating power 2*35.3 kW at a flow of 2*0.44 kg/sec at a temperature level of +50℃/+70℃






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-overall concept
> Read more about Chillquick Thermo™
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