We are now working on the lighting fixtures in a data centre.
For the equipment rooms, if we follow the baseline in ASHRAE 90.7-2007 by using Space-by-space method i.e. the allowance lighting power in equipment rooms would follow the "mechanical and eletrical" category, the lighting density would be too low for daily operation and thus it is hard to follow.
Is there any exemption for equipment rooms of data centre for EAp2?
Thank you.
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5921 thumbs up
January 20, 2012 - 9:26 am
Exemptions are noted in 90.1-2007 Section 9.2.2.3.
The mechanical/electrical allowance is 1.5 W/sf. This is greater than most other space types. Is it the density that is too low or the light level? All of the ASHRAE lighting values are selected to make sure you can easily comply with the IESNA requirements for light level. Not sure why this would be a problem at that density level.
Natalie Wong
18 thumbs up
January 26, 2012 - 4:27 am
Is the "mechanical and eletrical" category including data hall?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5921 thumbs up
February 2, 2012 - 10:56 am
As you can see there is not a category in Table 9.6.1 for a data center. The best fit seems to be the mechanical/electrical space type.