[Bldg-sim] 90.1-2010 baseline HVAC system question

Jones, Christopher cjones at halsall.com
Fri Mar 6 14:30:53 PST 2015

The proposed design is 3 floor or less and less than 25,000 ft2, nonresidential.  The proposed design HVAC system is water source VRF with dry cooler and natural gas boiler.  I believe this qualifies as Fossil/Electric Hybrid, therefore the Baseline system would be System 3, PSZ-AC.  I believe the baseline heating fuel should be natural gas.  Is this interpretation correct?

Thanks for your thoughts.

Christopher Jones, P.Eng.
Tel: 416.644.4226 • Toll Free: 1.888.425.7255 x 527

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