[Equest-users] Difference in Heating Energy - Identical SYSTEM application

[Busman, Michael R]

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

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of John Aulbach
Sent: Wednesday, August 08, 2012 9:41 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Difference in Heating Energy - Identical SYSTEM application

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
Senior Energy Engineer
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Partner Energy
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