Is there a default way to determine the cycles/day for combi ovens? How do you determine the hours/cycle and gal/hr if they are not indicated on a spec sheet?
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Richard Manning
RWDI USA LLC
2 thumbs up
August 14, 2013 - 12:04 pm
Ryan,
If the manufacturer data cannot be provided or if the cycles/day are not provided, it is difficult, or impossible, to achieve savings for this credit because USGBC has not provided the baseline or testing data for the 40 or 60gph. GBCI understands that there is a gap in the guidance documentation on how to determine the water use for a combination oven.
There are two paths:
1. Don’t take credit for the combi oven water savings and use the baseline as the design case water use. (Not ideal, I know!)
2. Alternative Compliance Path: Make up your own baseline and design case using the same operating data. GBCI may allow a special case for developing a baseline using industry benchmarks. They will want you to prove how you developed the baseline and design case. Organizations like the Food Service Technology Center may be a resource for assisting your project. Since this path is untested, we don't know how they will rule, but it would make a good LEED Interpretation if we don't see an update in the next addenda.
Suzanne Painter-Supplee, LEED AP+ID&C
PrincipalSEESolutions LLC
126 thumbs up
November 29, 2016 - 1:50 pm
Combi's DO have a standard, and for V3, baseline: less than 4 gal. PER PAN; prescriptive: 1.5 gal. per pan. Standard is based on 50% steam mode. I've long advocated for meal-based audits because you have the population anyway, and can base use from participating occupants. You might find this chart handy, which is a portion chart based on pan type.
http://vollrath.com/resources/4861/REF_PortionControl_en_NP_2012-02-01.p...