Hello,
I have been asked to help a manufacturer who wants to provide equipment for a LEED project in Europe. It is an airhandling units with packaged heat pump. At the moment they do not have an EER or SEER; either European or American (ARHI).
So the first question is to confirm whether this equipment would be under Table 6.8.1B. The size is 34000 Btu and so would make it subject to SEER and ARI 210/240.
The Second question is whether GBCI would consider it acceptable to determine the SEER according to European EN 14511 which seems to me to be almost identical to the AHRI test procedure?
Many thanks in advance.
Rick
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5906 thumbs up
May 25, 2012 - 8:26 am
If you can demonstrate that the SEER calculation is equivalent it would likely be accepted.
Jean Marais
b.i.g. Bechtold DesignBuilder Expert832 thumbs up
May 30, 2012 - 11:37 am
This is one of those "sticky" points for LEED international projects. Just like the filter classes, which have newly been ratified by the current state of the ACP credits (eg. MERV vs F-class), one has little choice but to use the European equivalent. In this case it should be noted that the weighting factors at part loads and the water temperatures are slightly different. That doesn't mean that the actual performance would be different.
There is a great presentation dealing in part with this at http://www.ashrae.gr/Hazapis0206.pdf
An example showed differences in rating of less than 0.2, i.e.
IPLV by ARI-590 = 3,78
IPLV by CEN-Draft = 3,58
We have submitted this sort of documentation to support our claims before, without problems. For the purposes of comparing baseline and proposed models, this should suffice. In my opinion this will be accepted in the long run officially.