Our system has fan-powered VAV boxes. The first review comments required us to use 62MZ calc to account for local recirculation. But we have 120 AHUs and hundreds of zones. One 62MZ calc excel file only can calculate one system which means we have to fill and upload 120 excel file. is it right and terrible?
what should I do?
The 62MZ calc sheet is not so smart and convenient. we are looking forward to more smart calculation sheet.
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Julia Weatherby
PresidentWeatherby Design & Co. Engineers
94 thumbs up
April 11, 2014 - 3:57 pm
You probably have to submit 120 Excel files. However, you do not have to fill out every zone for every AHU. You can make a judgement as to which zones are likely to be critical zones and include only those zones if that is helpful. However, when you have only a few zones served by an AHU, it is probably easiest to include all the zones for that AHU so you do not have to override any of the system variables.
If some of your AHU's are similar to each other, you could at least copy a completed Excel file and edit for any differences rather than starting from scratch with each AHU.