Thanks for your response to my post. Actually, I have just joined a firm of mechanical consulting firm. My previous experience is in cold and hot water distribution but not fire fighting. Having gone through various literature provided by the firm, I found that one has to determine the hydraulic most demanding zone and use it to size the fire sprinkler pump (is it like we do for chilled water pump?).

My problem is that I need an example with self explanatory notes.

Incidentally, the company uses a software called sprinkcad for design but only old engineers have access to it.

Will appreciate any assistance in this regard.