System Selection for a Bus Terminal

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Hello all,

This is a bus maintenance/terminal that pursues LEED v4 platinum. 85% of
the spaces in the proposed design have heating and ventilation system only
with no cooling. The remaining 15% of the spaces will be conditioned with
chilled beam, HW heating and DOAS with heat recovery. The HVAC system for
the baseline case is System 7 per ASHRAE table G3.1.1A.

What is the appropriate system for the heating ventilating spaces in both
of the models? Should I assume cooling system identical to System 7 with
high cooling temperature per Table G3.1.10 or I can assume as designed
system for the proposed model and system 9 for the baseline case?

As usual, thank you for your help.

Morteza

Morteza Kasmaei
Senior Architect
LEED AP BD+C, GGP

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The maintenance area and the office sections could be treated separately for their entry into the system selection table if you didn?t do that already. The operating hours, loads, and ventilation requirements would support separate systems for the two areas.

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David,

Thank you for your response. Do you mean, no matter how large is the
maintenance space, I can assume it as Heating Only Storage and select
System 9 for the baseline case.

Regards,

Morteza Kasmaei
Senior Architect
LEED AP BD+C, GGP

On Wed, Jan 22, 2020 at 2:18 PM David Eldridge
wrote:

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Correct ? the maintenance bay could be System 9 regardless of size as a heating only space.

The remaining 15% of your building would enter the system selection table on its own area, whatever that area is which determines the baseline heating and cooling system for that area.

David

David S. Eldridge, Jr., P.E., BEMP, BEAP, HBDP, GGA
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David Eldridge's picture
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Thank you for the clarification.
Much appreciated!

Morteza Kasmaei
Senior Architect
LEED AP BD+C, GGP

On Wed, Jan 22, 2020 at 3:25 PM David Eldridge
wrote:

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