Dummy Zone Settings for DOAS

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I am trying to model a dedicated outdoor air system in eQUEST. I created the DOAS (type PSZ) and assigned it to a 1ft2 "dummy zone", which has no loads. All of my other systems have OA-FROM-SYSTEM set to the DOAS. I set SUPPLY-FLOW for the DOAS to the total OA flow rate for the building, and I set MIN-OUTSIDE-AIR for the DOAS to 1.

Now I am confused as to what settings to input under the Air-Side HVAC Zone Parameters for the "dummy zone". Do I define heating and cooling thermostat schedules, which are set to the temperature at which I want to supply the OA to all the other systems? So, if I want the DOAS to supply 70F air to all the other systems do I set these thermostat schedules and the Indoor Design Temperatures to 70F? Also, do I need to input the building OA supply flow rate in the dummy zone under ASSIGNED-FLOW and OUTSIDE-AIR-FLOW?


Brian Tysoe M.Sc., LEED AP

Brian Tysoe M.A.Sc., P.Eng., LEED AP
Associate, National Manager of Energy Modelling Services

MCW Consultants Ltd.
Queen’s Quay Terminal
207 Queen’s Quay West, Suite 615
Toronto, ON, Canada M5J 1A7
Phone: (416) 598-2920 ext:519
Fax: (416)

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