[Equest-users] Ventilation air machine with FCU

[Matt Hein]

Nick,

eQuest limits the HVAC systems for a thermal zone to (1) air-side system
that may have reheat and/or supplemental heat, (1) baseboard heat source,
(1) exhaust system. To model the VAM system you need to create an
equivalent system to the overall systems operating in the thermal zone.

I think you can model your system by creating an exhaust fan (and schedule)
for the zone and incorporating the HEX into the FCU using Outdoor Air Heat
Recovery. You will need to make some adjustments to system performance
(e.g. kW/cfm) to make sure overall performance of the simulated system and
actual system align.

- Matt Hein


On Wed, Mar 26, 2014 at 10:29 AM, Nick Patsos <nick.patsos at gmail.com> wrote:

> Hello everyone,
>
> I'm trying to model in eQuest a ventilation air machine (VAM), which is a
> simple plate heat exchanger with an OA fan and an exhaust fan.
>
> How can it be modelled to operate with an FCU type of system? (VAM for
> fresh air heat recovery and FCU for cooling/heating).
>
> Best regards
>
> Nick Patsos
> Mechanical Engineer
>
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