Here is a website for working out generator applications….
http://www.macgen.com/calcul.html#kwtokva
To make it easier here’s my ‘unofficial’ guide based on my own experience on minimum requirement to operate fans.
Advise to start the fans one at a time.
1 x 1.5 blower = 3 to 4 kva
2 x 1.5 blower = 4 to 5 kva
3 x 1.5 blower = 5 to 6 kva
4 x 1.5 blower = 6 to 7 kva
5 x 1.5 blower = 7 to 8 kva
Official recommendations
Start Up 6KVA, Run 2KVA, Advised size Geni 7KVA, for 1 x 1.5 blower Start Up 6KVA, Run 3KVA, Advised size Geni 8KVA, for 2 x 1.5 blower Start Up 7KVA, Run 5KVA, Advised size Geni 8KVA, for 3 x 1.5 blower Start Up 8KVA, Run 6KVA, Advised size Geni 9KVA, for 4 x 1.5 blower Start Up 9KVA, Run 8KVA, Advised size Geni 10KVA, for 5 x 1.5 blower
Again for those who want more detail on the official specs and the calculator, try this web site:
http://www.macgen.com/calcul.html#kwtokva
(Information kindly supplied by VBLIH on the discussion forum of www.BouncyCastleOwner.com – sister site of the BIHA)