[Equest-users] Radiant ceilings

Arpan Bakshi arpanbakshi at gmail.com
Mon Apr 25 11:19:51 PDT 2011


I would still use baseboards for radiant heating, FCU for radiant cooling.
Build secondary water-side loops and assign baseboards to heating hot water
secondary loop and fan coil to secondary chilled water loop.



On Mon, Apr 25, 2011 at 2:05 PM, Shalini Modi <shalinimodi at msn.com> wrote:

>  Thanks, Rob and Arpan. I will try using fan coil units - will that be a
> good representation of radiant slab heating and AC? As soon as I select
> VAV/PVAV as the system type, the cool source in the cooling tab doesn't
> allow any change...why is that so?
>
> Shalini
>
>
>
> ------------------------------
> Date: Mon, 25 Apr 2011 13:54:36 -0400
> Subject: Re: [Equest-users] Radiant ceilings
> From: arpanbakshi at gmail.com
> To: rdh4176 at gmail.com
> CC: shalinimodi at msn.com; equest-users at lists.onebuilding.org
>
>
> Shalini
>
> An alternate method is using fan coil units with turned down fans. Have you
> tried this already?
>
>
>
> On Mon, Apr 25, 2011 at 1:34 PM, Rob Hudson <rdh4176 at gmail.com> wrote:
>
> eQuest forces the cooling system of "VAV" to chilled water.  if you use
> "PVAV" or packaged VAV, then the cooling type is forced to be DX coils.
>
> Happy Monday!
>
> Rob
>
> On Mon, Apr 25, 2011 at 1:31 PM, Shalini Modi <shalinimodi at msn.com> wrote:
>
>  Hello all,
>
> I need to model radiant ceiling for heating and cooling both. As per the
> suggestions in the archive (quoted below), I kept the system as VAV, reduced
> fan usage to represent radiant slab system's fan usage, kept my heating by
> water loop baseboards and cooling by DX and coil head and loop temperatures
> as per radiant slab system but after selecting the system type as 'VAV', in
> the cooling page, it won't allow me to select 'electric DX' as the cooling
> source.
>
> Kindly advice how can I solve this problem.
>
> Thanks a lot,
>
> Shalini
>
> [Equest-users] How do I model a building with radiant slab heat ANDair
> conditioning? *Bishop, Bill* wbishop at pathfinder-ea.com
> <equest-users at lists.onebuilding.org?Subject=Re:%20[Equest-users]%20How%20do%20I%20model%20a%20building%20with%20radiant%20slab%20heat%0A%09ANDair%20conditioning?&In-Reply-To=%3C83996EE70003D04B830E1C4A5E6688CEEFA58A at PATHMAIL2.pathfinderengineers.com%3E>
> *Tue Mar 2 14:03:52 PST 2010*
>
>    - Previous message: [Equest-users] How do I model a building with
>    radiant slab heat AND air conditioning?
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>    author ]<http://lists.onebuilding.org/htdig.cgi/equest-users-onebuilding.org/2010-March/author.html#3454>
>
> ------------------------------
>
> Rob,
>
> Select the system based on the DX air conditioning, then add hot water
> baseboards for the radiant slab. Set your baseboard capacity, coil head,
> loop temperature etc. to match the radiant slab heating system.
>
>
>
> Regards,
> Bill
>
> William Bishop, EIT, LEED(r) AP | Pathfinder Engineers & Architects LLP
> Mechanical Engineer
>
> 134 South Fitzhugh Street
> Rochester, NY 14608
> T: (585) 325-6004 Ext. 114
>
>
> F: (585) 325-6005
> wbishop at pathfinder-ea.com <http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org>
>
> www.pathfinder-ea.com
> P Please strive to live sustainably.
> ________________________________
>
> From: equest-users-bounces at lists.onebuilding.org <http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org>
>
>
> [mailto:equest-users-bounces at lists.onebuilding.org <http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org>] On Behalf Of Rob
> Rosen
> Sent: Tuesday, March 02, 2010 4:34 PM
>
>
> To: equest-users at lists.onebuilding.org <http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org>
> Subject: [Equest-users] How do I model a building with radiant slab heat
>
>
> ANDair conditioning?
>
> To All,
>
> Is it possible to model a building with radiant slab heat (hot water
> loop) and air conditioning? It appears to me that the eQUEST airside
> system type for radiant slab heating is FPH (floor panel heating
>
>
> system), and that this is "heating only".
>
> Can anyone suggest a way to model a building that has both radiant slab
> heating and DX air conditioning?
>
> Thanks,
>
> Rob Rosen
> Senior Energy Analyst
>
>
> Taitem Engineering
> 110 S. Albany St.
> Ithaca, NY 14850
> Phone: 607-277-1118 ext 110
> Fax: 607-277-2119
>
> www.taitem.com
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> --
> Rob Hudson
>
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> --
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> *
> *
> *Arpan Bakshi  LEED AP BD+C
> *
>
>
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*
*
*

Arpan Bakshi  LEED AP BD+C
*
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