I have a small facility (20k sqft or so) that is approximately 45% office and 55% "transitional" residential.
I've modeled it as a residential with PTAC w/ HW Coil per zone, but I'm running into a couple of issues.
1. I'm not sure if modeling the zones as residential in the offices is truly appropriate. Should this be partially PSZ w/ furnace in the office zones?
2. The residential zones are so incredibly small, I'm getting a 2 kBtu load cooling load for each zone. PTACs can't be bought that small and the oversizing load is killing me in the proposed design.
Any solutions?
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PAWAN DAHIWAL
10 thumbs up
December 6, 2012 - 2:26 am
from my perceptive,if i would be there, i would model residential system type for whole area which require conditioning (office+residential). For your second question i suggest you to refer ASHRAE section 3 (definations and acronyms). Check the capacity you reported for the spaces and model accordingly.