[Equest-users] Radiant ceilings
Shalini Modi
shalinimodi at msn.com
Mon Apr 25 11:05:42 PDT 2011
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
Tue Mar 2 14:03:52 PST 2010
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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
www.pathfinder-ea.com
P Please strive to live sustainably.
________________________________
From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Rob
Rosen
Sent: Tuesday, March 02, 2010 4:34 PM
To: equest-users at lists.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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