The project we are modeling follows LEDD v3 - 2007 (System 7) and the heating source is purchased heat. There are two question related to this issue.

1. Is there some interpretation or other amendments clearing how much will be the pump power, because it is written (G3.1.3.5) "….(except for purchased water or steam)…".

2. The allowed pump power in W/gpm is it per all heating water system or it could be split somehow (as per floor area)
Your advice will be highly appreciated.