At the end of 2010, Valerii S&M Group assigns MULTICLIMA Ltd., to reduce costs by 70 % for heating and cooling of their own administrative and commercial building with an area of 2 500 m2, fully glazed north facade. Until now, the annual costs for heating and cooling of the building were about 25 000 €.
At the beginning of 2011 MULTICLIMA makes exploratory drilling for groundwater. The values are better than expected: flow 5 l/s, ground water with temperature of 14,8 °C. Constructed two wells - for water extraction and reinjection.
Next month was removed old inefficient heating system and built a new one, with heat pumps Heliotherm, Austria.
In March 2011 have made many tests of the installation, with the help of experts from Heliotherm under the control of Harald Henikl.
The results are impressive: it achieves COP of 8.4! The calculations show that the annual costs for heating and cooling will not exceed 5 000 €, savings of up to 20,000 € per year! Repayment period of investment is less than 3 years operation of the installation!
Contractors:
MULTICLIMA Ltd.
Investor:
Valerii S & M Group
Manufacturer of heat pumps:
Heliotherm Wärmepumpentechnik Ges.m.b.H., Austria
Subject:
Commercial center and administrative building - Valerii S & M Group
Total area:
2 500 m2
Type of installation:
Ground water heat pump installation
Specifications:
Cascade of two water / water heat pumps HELIOTHERM model HP28S45W-WEB, Series R, with an additional set for passive cooling
Drilling surveys:
Ground waters flow 5 l/s and temperature 14,8 °C
Efficiency
Coefficient of performance: COP 8,4
Water temperature in the buffer tank: 40 °C
Annual saving of money for heating and Air Conditioning: 20 000 €!
Repayment period of investment: 3 years!
