[Equest-users] Appendix G - Fan schedules

[Sami, Vikram]

You access that in the detailed edit mode under night cycle control fr your fans.


STAY-OFF                    The fans stay off regardless of conditions.

CYCLE-ON-ANY            The fans are cycled on for the hour if the temperature of any zone in the system falls below the throttling range for heating,

CYCLE-ON-FIRST         The fans are cycled on for the hour if the temperature in the system's control zone falls below the throttling range for heating.

ZONE-FANS-ONLY        For a PIU system, the main or central system PIU fan will remain off but the individual zone terminal fans will cycle on separately to satisfy the heating setback temperature for each zone.


Vikram Sami, LEED AP
Sustainable Design Analyst
1382 Peachtree St. NE, Atlanta, GA 30309
t: 404-443-7462    f: 404.892.5823       e: vikram.sami at perkinswill.com   www.perkinswill.com<http://www.perkinswill.com/>
Perkins+Will.  Ideas + buildings that honor the broader goals of society


From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Omar Katanani
Sent: Thursday, July 08, 2010 12:37 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Appendix G - Fan schedules



Dear all,

ASHRAE 90.1 appendix G states that:

"Schedules for HVAC fans that provide outdoor air for ventilation shall run continuously whenever spaces are occupied and shall be cycled on and off to meet heating and cooling loads during unoccupied hours."

Can someone please explain to me how to do this? What type of schedule (1 or 2 schedules, etc.)

Thank you very much!

Best,
Omar
___________________________

Omar Katanani
Sustainable Design Engineer
Email: omar at ecoconsulting.net


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