<html><body><p><font size="2" face="sans-serif">Hi eQuest Users,</font><br><br><font size="2" face="sans-serif">Recently I am doing a factory model, which is pursuing LEED NC 2009. The building have workshop, warehouse and office. Part of the workshop have only ventilation fans. The other part of workshop and warehouse have only natural ventilation. I understand that ASHRAE 90.1 </font><br><font size="2" face="sans-serif">judge whether a space is conditioned or unconditioned by sensible output capacity. Then, in order to get this sensible output capacity, should I assume all the workshop and warehouse as cooled space and heated space, run the model and get a virtual capacity? Is this a reasonable way?</font><br><br><font size="2" face="sans-serif">Here I attach a pervious comments from another factory, which only have heating in winter, no cooling in summer. Wish to get some good idea from you! Thanks!</font><br><br><font size="1" color="#4F4F4F" face="serif">The narrative description of the Proposed design indicates that the only the office area is provided with mechanical cooling, but it is</font><br><font size="1" color="#4F4F4F" face="serif">unclear if the heated only spaces qualify as conditioned space as defined in Section 3. If the heating output capacity is greater than or</font><br><font size="1" color="#4F4F4F" face="serif">equal to 10 Btu/hour/square foot then the space is considered conditioned so cooling should be included in the Baseline and Proposed</font><br><font size="1" color="#4F4F4F" face="serif">case models. The cooling should be modeled using the Baseline cooling system type (System Type 7) in both the Baseline and</font><br><font size="1" color="#4F4F4F" face="serif">Proposed model using identical cooling capacity ratios and efficiencies in the Baseline and Proposed case. If the heating output</font><br><font size="1" color="#4F4F4F" face="serif">capacity is less than 10 Btu/hour/square foot, then the space is considered semi#heated or unconditioned, so only heating equipment</font><br><font size="1" color="#4F4F4F" face="serif">should be included in the Proposed and Baseline models; the heating type, capacity ratios, fan volume, and fan power for these spaces</font><br><font size="1" color="#4F4F4F" face="serif">should be modeled identically between the Baseline and Proposed case. Please revise the Proposed model and Baseline model as</font><br><font size="1" color="#4F4F4F" face="serif">needed so the correct system type is modeled in all spaces. Please also indicate the total heating capacity and building area for semiconditioned</font><br><font size="1" color="#4F4F4F" face="serif">spaces to verify that they qualify as semi-conditioned spaces. In addition, please update Section 1.2 - Table EAp2-1 and</font><br><font size="1" color="#4F4F4F" face="serif">Table 1.4.2 as needed reflecting the changes. (heating output of 10 Btu/h per square foot or more) and represents the predominant</font><br><font size="1" color="#4F4F4F" face="serif">condition. Please revise the Baseline model as required to use System Type 7 to serve all areas that represent the predominant</font><br><font size="1" color="#4F4F4F" face="serif">condition and a separate System Type 3 for each thermal zone in the offices that only operate 40 hours per week.</font><br><br><font size="2" face="sans-serif"><br></font><img src="cid:1__=C7BBF634DFB9A0078f9e8a@bureauveritas.com" width="924" height="308"><BR>
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