Hot Water Pump Sizing
Hot Water Pump Sizing
(OP)
I am sizing hot water circulating pumps for a 3 story building for a vav w/ reheat system. My question is do I take into account the static head required to pump to the highest hw coil in a VAV box on the 3rd story (pumps in the basement), or do I just take into account the pipe friction losses as the contractor will precharge the pipe to adequate pressure during installation?





RE: Hot Water Pump Sizing
RE: Hot Water Pump Sizing
be sure you get the coil manufacturers pressure drop for the flow rate you need, same for valves etc.
It doesn't sound like you use a software (I have Trane Pipe Designer and that works fine). Here is a free tool http:/
(the cool tools pipe optimization)
RE: Hot Water Pump Sizing