[Equest-users] MSAV variable speed fan motor

[Carol Gardner]

Thanks, Fred. Just as good if PVVT. Actually I was going to say PVVT but
thought Mary said VAV and the tab's there for it, too. I would use it with
advice from an engineer or really knowledgeable HVAC guy. Yeah, they are out
there.

Prolific poster indeed! I offer my services to people for real money, too! I
don't want to stand by a freeway with a will work for food sign. None of us
does.

Good to hear from you. Apologies in advance for putting it back on line.

Personal regards,
Carol



On Tue, May 11, 2010 at 1:32 PM, Fred Porter <FPorter at archenergy.com> wrote:

>  Carol,
> You are quite the prolific poster! You might want to check your advice in
> this case. I think  95% of the time this type of RTU should be modeled as a
> PVVT, not PVAV. (I'm not sure the specific keywords are enabled unless PVVT
> is the system TYPE anyway.)
>
> It may be used with a few sub/slave zones with reheat it is not typically
> applied as a true VAV unit, but as a large heat/cool unit with variable flow
> and capacity responding to a single zone in various complicated ways. I've
> seen these RTUs applied to the main zones of big box stores.
>
>
>
>  --
> Fred W. Porter, B.Sc., LEED A.P.
> Senior Analyst
>
> Architectural Energy Corp. - Boulder
> office: 303-444-4149 x425
> direct: 303-459-7425
> mobile: 303-748-4536
>
>
> >>> On 5/11/2010 at 10:13 AM, in message <
> AANLkTik9q1e5gbwiE7yS_gPF3vSgU7V-LgTmCXmTa95A at mail.gmail.com>, Carol
> Gardner <cmg750 at gmail.com> wrote:
>   Hi Mary,
>
> Actually this is pretty easy. You can select packaged VAV as your system
> and then when you are in the detailed edit mode go to your HVAC tab, then to
> the Air-Side HVAC System Parameters tab, then to the cooling tab, and lastly
> to the Stages tab at the far right. That should work for you. If you have a
> ME that you are working with a few questions to her would help as to which
> option to choose. A good vendor can help with this, too.
>
> Let us know if ya need any more help.
>
> Regards,
> Carol
>
> On Fri, May 7, 2010 at 7:14 AM, Mary Wyllie <MWyllie at hiscutt-aia.com>wrote:
>
>>  Does anyone have experience modeling multi-stage air volume roof top
>> units such as the Lennox Energence? Do I handle that as a VAV or stick with
>> constant volume and try and model it with schedules? And, yes, I’m an
>> architect trying to do an engineer’s job, so be gentle with me. I’ve already
>> learned so much from reading all of your posts over the last few months.
>>
>> *Mary Wyllie | AIA | LEED AP*
>>
>> Associate
>>
>> Hiscutt & Associates, Inc.
>>
>> 3655 Brookside Pkwy., Suite 575
>>
>> Alpharetta, GA 30022
>>
>> (770) 753-8787
>>
>> *R**educe **R**euse **R**ecycle **ü*
>>
>>
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