[Equest-users] VRV SYstem Equipment Efficiency

[Nikola Kravik]

Reniel,

I agree with Gary's input.
I was told the same on the VRV systems in regards to 90.1 (for now to use 13 SEER and 7.7COP).

Thanks,
Nikola

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Gary.Schrader at buildings.schneider-electric.com
Sent: Monday, March 15, 2010 6:20 AM
To: renielbarroso at yahoo.com; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] VRV SYstem Equipment Efficiency

To the best of my knowledge, there aren't any.

Last time I checked, VRV was not ARI certified for its efficiency ratings at any level above 13 SEER due to the fact that the VRV equipment, by its nature, can be coupled with multiple coil configurations. (e.g. Different indoor equipment combinations)

ARI addressed this problem by simply stating that all VRV equipment was thus rated at 13 SEER. They know it will go well beyond that, but without knowing the particulars about the installation, there is no way to tell. You could, of course, rely on manufacturer's data to tell you, but I'm not sure if you would be following the letter of the law in that instance. Other group members would have to chime in to give their interpretation.

Good luck,
Gary

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Gary Schrader | Schneider Electric | Buildings Business | Energy Solutions | Engineer I
Phone: +1 | Mobile: +1 913 217 8068 | Fax: +1 913 469 0206
Email: gary.schrader at buildings.schneider-electric.com<mailto:gary.schrader at buildings.schneider-electric.com> | Site: www.schneider-electric.com/buildings<http://www.schneider-electric.com/buildings> | Address: 16011 College Boulevard, Suite 212, Lenexa, KS 66219, USA

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From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of reniel barroso
Sent: Sunday, March 14, 2010 11:25 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] VRV SYstem Equipment Efficiency
Hi to all!

Where can we find the Minimum Requirement System Efficiency of a VRV System in ASHRAE 90.1?
Which of those systems mentioned in the ASHRAE 90.1 can we use to compare such equipment?


Thanks


Reniel

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