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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