[Equest-users] How to model a DOAS serving corridors with a Chilled Water Coil

[Julien Marrec]

Hi,

I've got a building with a DOAS (AHU with 100% outside air) serving
corridors (no reheat, no fan in there, just ventilation grilles). The DOAS
has one coil, served by hot water in winter and cold water in summer.
There is no economizer, and the supply temperature is simply set by a
thermostat set as 70°F year round.

I have modeled DOAS before but I was using a PSZ or a PVVT. Those have DX
cooling coils, so it's not an option.
Seems like I could use MSZ or VAV for example, but I'm not sure which would
be more appropriate.


What type of system do you recommend using in my case?

How would you control it in order to get the proper supply temperature
(70°F) and avoid simultaneous heating and cooling (Is using an availability
schedule the only option?)?


Also, if you have an .inp snippet I could use to set it up correctly, I'll
greatly appreciate it!


Thanks,
Julien
--
Julien Marrec, EBCP, BPI MFBA
Energy&Sustainability Engineer
T: +33 6 95 14 42 13

LinkedIn (en) : www.linkedin.com/in/julienmarrec
LinkedIn (fr) : www.linkedin.com/in/julienmarrec/fr
<http://www.linkedin.com/in/julienmarrec>
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