Solar technology - Product catalogue 2013
46Pages

Solar technology Product catalogue 2013 Edition I

TABLE OF CONTENTS Special features of Hewalex solar collectors Selecting a solar collector - flat plate or evacuated tube? Conditions for installation of solar collectors Selection of a size for small solar systems Cost-effectiveness of solar collectors Solar sets Components of solar systems Flat plat solar collectors Evacuated tube collectors Connection components for solar collectors Pump control units Controller G422, Controller GH26 Heaters and accessories HEWALEX heaters with one or two heat exchangers INTEGRA heaters for heating water and supporting central heating DHW heaters with...

..Providing the highest quality product to our customers, based on the latest technical innovations, is the idea which is always with us in setting new goals and The development of Hewalex started nearly 25 years ago, was associated with popularizing the use of renewable energy sources. Many years of experience and continuous improvement of products, also by acquiring information from users and operators, can offer proven solutions. Solar collectors are subjected to difficult operating conditions, and the first collectors produced by Hewalex operate to date, which confirms their highest...

THE OFFER OF HEWALEX Hewalex is a manufacturer and supplier of heating systems using renewable energy. In time, the Company extended its 25 years' production of solar collectors with accessories for solar system. Currently, the offer includes complete solar systems for domestic hot water and support of central heating in private buildings, as well as solutions for large residential, office, industrial, commercial, service and other facilities. The second segment of the offer includes heat pumps for heating of buildings and heating domestic hot water and swimming pool water. Hewalex offers...

SPECIAL FEATURES OF HEWALEX SOLAR COLLECTORS Advantageous purchase prices and high heat yields - a positive economic effect Hewalex offers proven technical solutions characterized by very good “price/performance” indicators. As in the case of flat plate collectors of KS series, the highlyefficient evacuated tube collector KSR10 brings a positive economic effect as regards the purchase price. Operational safety, protection against overheating Both flat plate collectors of KS series and evacuated tube collectors KSR10 are manufactured taking into account the most difficult operating...

SELECTING A SOLAR COLLECTOR - FLAT PLATE OR EVACUATED TUBE? 90% 80% For most applications, in view of the investment costs to obtained results ratios, it is advisable to use flat plate collectors. The unit purchase price of a flat plate collector (PLN/m2) is on average 2.5 times lower than the price of an evacuated tube collector. In extreme cases, the difference to the disadvantage of evacuated tube collectors can be as much as six-fold. However, a large part of attractively priced evacuated tube collectors allow obtaining, at the outmost, comparable, and often lower heat yields than in...

CONDITIONS FOR INSTALLATION OF SOLAR COLLECTORS Installation conditions 30o-45o Hewalex solar collectors can be used in different installation conditions. Flat plate collectors typically require inclination to the level and the recommended angle for year-round operation is within 30÷45o. Solar collectors should be directed towards south (S), but a deviation within the angle ±45o may be considered acceptable. Decrease in heat yields of the solar collector should be then not greater than 5 % per year. Unusual conditions for installation of solar collectors If the roof planes are directed from...

SELECTION OF A SIZE FOR SMALL SOLAR SYSTEMS System for heating domestic hot water (DHW) A well-designed solar system should cover up to 50 to 60 % of thermal demand required during the year for heating domestic hot water. To reach the intended demand coverage for 1 person, 0.8 to 1.5 m2 of active absorber surface per person should be assumed. Additionally, when determining the capacity of the tank, a standard indicator of daily hot water use for one person of 40 - 60 l of water at 55°C should be adopted. An appropriate choice of a solution facilitates the selection of the solar set, which...

COST-EFFECTIVENESS OF SOLAR COLLECTORS Savings obtained from operation of a standard solar installation Thermal demand for DHW heating Standard solar systems are designed for heating domestic hot water (DHW). Thermal demands for its heating are fairly constant throughout the year and independent of the weather. This allows selecting the size of the solar system in such a way as to provide for heating of domestic water up to 90÷100 % of thermal demand during the summer months. Thanks to the above, the primary source of heat in the house, for example a hot water boiler or an electric storage...

SOLAR SETS A. SOLAR SETS DOMESTIC WATER SETS SOLAR SETS The offer of Hewalex includes solar sets designed for heating of domestic hot water (DHW) and for heating of DHW with central heating support. Solar sets include such elements as: ź Flat plate solar collectors of series KS2000, KS2300 or KS2500 only in version with entirely varnished housing (e.g. KS2000 TLP). Maximum number of collectors in a set: 5 pcs KS2000 or ź Evacuated tube collectors of series KSR10. Maximum number of collectors in a set: 6 pcs KSR10 ź 2-coil DHW water heaters, with a capacity of 200 to 500 litres ź ZPS pump...

SOLAR SETS DOMESTIC WATER AND CENTRAL HEATING SUPPORT SETS SOLAR SETS The offer of Hewalex includes solar sets performing two functions: heating of domestic hot water (DHW) and central heating support. Thanks to development of a special design of the universal Hewalex heater INTEGRA, this type of solar system does not require application of two separate tanks (heating water and DHW) and the hydraulic system does not differ from the standard system designed specifically for heating domestic hot water. Our offer includes sets for heating domestic hot water and central heating support with...