[Equest-users] Temperature Control of Zone Level Exhaust

[Brian Fountain]

Omer,

I have not found a way to operate an EF based on OAT directly.  We have modelled spaces, such as electrical rooms, that are only conditioned by an exhaust fan on a thermostat with a relief intake louver.  We used a 100% OA supply fan – usually a PSZ system with cooling set to 1 BTU/hr to prevent autosizing.  The fan input power matched the exhaust fan and it is controlled either to ‘intermittent’ operation or it is set always to unoccupied with its night cycle control set to ‘cycle on any’.

This suggestion would be less helpful if you have other systems serving the same space.  In that case I guess you’d create a custom schedule for the exhaust fan.  I still like RMI’s EMIT spreadsheet for creating custom eQUEST schedules.

Cheers,

Brian

Footprint

From: Equest-users <equest-users-bounces at lists.onebuilding.org> On Behalf Of Omer Moltay via Equest-users
Sent: November 27, 2020 1:04 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Temperature Control of Zone Level Exhaust

CAUTION: EXTERNAL SENDER

Dear All,

Is it possible to model zonal exhaust schedules in eQuest to turn on/off based on indoor temperature of the zone?

Thanks in advance for the replies,

Ömer Moltay, LEED AP BD+C, ASHRAE BEMP, ASHRAE CPMP
Mimta EcoYapi, LEED Proven Provider
Hekimsuyu Cad. 559. Sk.
No:39 34255 Kucukkoy Istanbul Turkey
Tel: 90-212-617-2296
Fax: 90-212-617-2297
Mobile: 90-533-957-1394
www.eco-yapi.com<http://www.eco-yapi.com>
www.buildingenergymodels.com<http://www.buildingenergymodels.com/>

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