6. The collectors should be located as close as possible to the storage cylinder to reduce energy losses. For
optimum performance the collectors should be no more than 20 m of pipe run from the cylinder, a total of 40
metres including return pipes.
7. The roof must be structurally able to support the weight of the collectors. Each collector weighs approxi-
mately 40 kg when full of water. If the roof cannot support the load, additional bracing must be installed before
the system is installed.
H2 – PIPE LENGTHS AND BENDS
Maximum recommended pipe length and number of 90° bends
Pipe Size 1 or 2 Collectors 3 Collectors
Pipe Length 90° Bends Pipe Length 90° Bends
DN15 40 metres 20 30 metres 20
DN20 Not recommended NR 40 metres 20
Note: For each extra metre of pipe length, reduce the number of 90° bends by two. For each additional 90°
bend, reduce the maximum total pipe length by 0.5 metres. One 90° elbow equivalent to two 90° bends.
H3. ROOF AREA REQUIRED AND APPROXIMATE WEIGHT OF COLLECTORS
1 Collector 1.3 m wide x 2.0 m deep. Weight approximately 40 kg
2 Collectors 2.4 m wide x 2.0 m deep. Weight approximately 80 kg.
H4. COLLECTOR SIZE AND PACKAGING
Our Collectors are approximately 2 metres x 1 metre in size. In order to reduce damage and danger, the collec-
tor must be covered until it is filled with fluid and ready for use.
Each Collector is packaged in an individual cardboard carton.
It is recommended that the packaging on the front surface of each collector surface is left on the collector until
the system is filled with water. This shall prevent premature heating and possible danger of scalding of persons
adjacent to the collector part way through installation.
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