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Scott Hackel, PE, LEED AP
Hi all:
I am trying to simulate hot water radiators in an older building (No Cooling). My 1st choice was 4-pipe fan coil with no cooling. Then someone told me to run DX cooling with a hot water coil (again, cooling zeroed out).
The DX approach causes a heating increase of approximately double the energy. No pumping energy increase. Fans have airflow but zero HP.
What could be causing this?
Thanks.
John R. Aulbach, PE, CEM
John,
I can't answer your question about heating doubling, unless it's introducing ventilation air.
I may be oversimplifying, but have you tried describing as no cooling equipment, baseboards for heating equipment on a hot water loop, system type: HW Baseboards (only) with NO zone ventilation, and assign a boiler system?
Mike
John, What's up buddy... Haven't crossed your path in awhile.
Why don't you choose the system type- "heating and ventilation", You should be able to simulate hydronic heating with ventilation , but no issues/inputs for the cooling side.
Send me your file if you want me to look at your current system approach.
Cheers!
Pasha
Sent from my iPhone