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30 33-1197 Solahart Owner ‟ s Manual – Thermosiphon Systems- Revision H – Nov 2013

ANNUAL PERFORMANCE CALCULATIONS FOR EUROPE

SYSTEM WIND AND SNOW LOAD PRESSURE

Under the requirements of EN 12795-1( European Standard) the type of collector used in these systems has been tested( ITW 11COL1015) to 2000 Pa, the maximum pressure( positive and negative) limit of the test equipment. This value has been used to determine the maximum permissible limits of wind load( v m) as 56.6 m / s( 203.6 km / h) and snow load( s k) as 2 kN / m 2.

Systems or collector only installations using these collectors are only to be installed where the maximum values of s k( snow load) and v m( mean wind velocity) for the specific geographical area and installation circumstances do not exceed the European permissible limit of wind and snow load. Values of v m and s k for your area can be obtained by consulting the local dealer, a qualified structural engineer or relevant authorities.

These collectors and systems are routinely used in Australian Cyclonic regions.

KF SYSTEMS

Annual performance calculations of Solahart thermosiphon KF systems with the KF collector according to EN12976 SolarKeyMark Systems ITW Test Report 10SYS90-1 and 09SYS72 for the 151KF( 150 tank, 1 collector), 181KF( 180 tank, 1 collector), 182KF( 180 tank, 2 collectors), 221KF( 220 tank, 1 collector), 222KF( 220 tank, 2 collectors), 301KF( 300 tank, 1 collector), 302KF( 300 tank, 2 collectors), 303KF( 300 tank, 3 collectors), 443KF( 440 tank, 3 collectors) systems and 444KF( 440 tank, 4 collectors) systems.

Qd = energy demand QL = solar energy( load) f-sol = solar fraction