Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
See this thread for position of pumps positioning-of-pumps-plant-loopcondenser-loop
Gard analytics energy plus presentation also has useful guidance on detailed HVAC
I've found that hardsizing the Loop Volume to a large number helps create some stability in the chilled water loop.
The chilled water return temperature may be affected, at times, by the bypass branch. Inspect flow rates on that branch to see if they rare non-zero, and whether they coincide with return temperature fluctuations.
Sizing the Loop with a delta T does not guarentee that delta T is maintained during the simulation. The setpoint manager controls the dynamics during the simulation, and it's job is merely constant supply temperature. Have a look at the flow resolver for the plant loops
