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<TITLE>RE: [Equest-users] VRV SYstem Equipment Efficiency</TITLE>
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<P><FONT SIZE=2>Reniel,<BR>
<BR>
To add to Gary's response, my Daikin friend indicated they're waiting on the current draft of ARI-1230 to be approved. This is a new standard designed for multi-split VRV systems, and hopefully it will be implemented before the end of 2010.<BR>
<BR>
If your project uses small, single-split VRV systems, these have been rated under ARI-210/240 since 2008. The ARI Certified Product Directory contains efficiencies by indoor/outdoor unit combo for each manufacturer, and I've attached a couple pages I pulled out for a previous job. As Gary stated, they're all 13 SEER or higher. You can download the full product directory for free (ahridirectory.org) if you need other manufacturers' ratings.<BR>
<BR>
Thanks,<BR>
<BR>
Dakota Kelley<BR>
Telios MEP Engineers<BR>
<BR>
<BR>
-----Original Message-----<BR>
From: Gary.Schrader@buildings.schneider-electric.com [<A HREF="mailto:Gary.Schrader@buildings.schneider-electric.com">mailto:Gary.Schrader@buildings.schneider-electric.com</A>]<BR>
Sent: Mon 3/15/2010 8:20 AM<BR>
To: renielbarroso@yahoo.com; equest-users@lists.onebuilding.org<BR>
Subject: Re: [Equest-users] VRV SYstem Equipment Efficiency<BR>
<BR>
To the best of my knowledge, there aren't any.<BR>
<BR>
Last time I checked, VRV was not ARI certified for its efficiency<BR>
ratings at any level above 13 SEER due to the fact that the VRV<BR>
equipment, by its nature, can be coupled with multiple coil<BR>
configurations. (e.g. Different indoor equipment combinations)<BR>
<BR>
ARI addressed this problem by simply stating that all VRV equipment was<BR>
thus rated at 13 SEER. They know it will go well beyond that, but<BR>
without knowing the particulars about the installation, there is no way<BR>
to tell. You could, of course, rely on manufacturer's data to tell you,<BR>
but I'm not sure if you would be following the letter of the law in that<BR>
instance. Other group members would have to chime in to give their<BR>
interpretation.<BR>
<BR>
Good luck,<BR>
Gary<BR>
<BR>
________________________________________________________________________<BR>
_______________________________________________<BR>
<BR>
<BR>
<BR>
Gary Schrader | Schneider Electric | Buildings Business | Energy<BR>
Solutions | Engineer I<BR>
Phone: +1 | Mobile: +1 913 217 8068 | Fax: +1 913 469 0206<BR>
Email: gary.schrader@buildings.schneider-electric.com | Site:<BR>
www.schneider-electric.com/buildings | Address: 16011 College Boulevard,<BR>
Suite 212, Lenexa, KS 66219, USA<BR>
<BR>
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________________________________<BR>
<BR>
From: equest-users-bounces@lists.onebuilding.org<BR>
[<A HREF="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</A>] On Behalf Of reniel<BR>
barroso<BR>
Sent: Sunday, March 14, 2010 11:25 PM<BR>
To: equest-users@lists.onebuilding.org<BR>
Subject: [Equest-users] VRV SYstem Equipment Efficiency<BR>
<BR>
<BR>
Hi to all!<BR>
<BR>
Where can we find the Minimum Requirement System Efficiency of a VRV<BR>
System in ASHRAE 90.1?<BR>
Which of those systems mentioned in the ASHRAE 90.1 can we use to<BR>
compare such equipment?<BR>
<BR>
<BR>
Thanks<BR>
<BR>
<BR>
Reniel<BR>
<BR>
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