[Equest-users] Cold climate no space heating energy consumption during summer months (April to September)

[Seaman, Ethan]

Anil,

Do you have a maximum humidity value set? If not, you’re likely allowing up to 100% RH, therefore no need to overcool and then reheat the DAT.

I’d also add that climate 3A is mid-Atlantic area of the US; this area is quite humid it the summer, so if no humidity control you may only be cooling the air regardless of RH.

_______________________________________________
Ethan Seaman
Sustainable Design Analyst
SMMA
t: 617.520.9288
www.smma.com

From: Equest-users <equest-users-bounces at lists.onebuilding.org> On Behalf Of Anil jangid via Equest-users
Sent: Thursday, September 14, 2023 2:04 AM
To: 'John Aulbach' <jra_sac at yahoo.com>; equest-users at lists.onebuilding.org; equest-users-request at lists.onebuilding.org
Subject: Re: [Equest-users] Cold climate no space heating energy consumption during summer months (April to September)

Hi john,

Thanks for your prompt response.

I checked in the model, there is no unmet hours for heating. Please suggest.

Thanks

From: John Aulbach <jra_sac at yahoo.com<mailto:jra_sac at yahoo.com>>
Sent: Wednesday, September 13, 2023 10:25 PM
To: equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>; equest-users-request at lists.onebuilding.org<mailto:equest-users-request at lists.onebuilding.org>; Anil Jangid <anil.jangid at kamalcogentenergy.com<mailto:anil.jangid at kamalcogentenergy.com>>
Subject: Re: [Equest-users] Cold climate no space heating energy consumption during summer months (April to September)

Are you getting any unmet hours for heating? That would clue you that you may not have reheat coils active.

John R Aulbach

On Wednesday, September 13, 2023 at 08:45:59 AM PDT, Anil Jangid via Equest-users <equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>> wrote:



Dear Folk,



We are working on a hospitality project located in climate zone 3A (USA). The mechanical system includes DOAS, VRF with furnace heating and Dx cooling. I am working on eQuest software and using system types of “Packaged single zone” and  “Packaged Variable Air Volume Temperature” (VRF). On simulation there is no space heating energy consumption during summer months (April to September), which is unexpected. I have checked for the file, Cooling Set point (75F), heating set points 70F, Fan schedules as per and Cooling  and Heating, etc. and all these appear to be correct. Please advise what I am missing and what system type shall be appropriate for these HVAC systems in the eQuest?

Thanks







Thanks in advance
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