[Equest-users] checking my glasses?

[Lyle Keck]

Hi John,

Yes, Table G3.1.2.6A in Appendix G does say that you do not need to model an economizer for Appendix G baseline system types 3-8 (in climate zone 4a).

In your original post you were referencing a prescriptive requirement of the Standard.  I thought you were questioning whether fan cooling systems in climate zone 4a could exclude economizers and still meet the prescriptive requirements of A90.1-2007.

- Lyle  


-----Original Message-----
From: John Aulbach [mailto:jra_sac at yahoo.com] 
Sent: Friday, December 06, 2013 3:00 PM
To: Lyle Keck
Cc: equest-users
Subject: Re: RE: [Equest-users] checking my glasses?

thanks, lyle. but now refer to p.181 in appendix g. table g3.1.2.6a climate zone 4a...

----------
Sent from AT&T's Wireless network using Yahoo! Mail

------Original Message------
From: Lyle Keck <lkeck at aeieng.com>
To: "John Aulbach" <jra_sac at yahoo.com>
Cc: "equest-users" <equest-users at lists.onebuilding.org>
Date: Friday, December 6, 2013 9:45:20 PM GMT+0000
Subject: RE: [Equest-users] checking my glasses?

Are you are referring to Table 6.5.1?  If so, I believe that table is only used to apply exceptions (a) or (e) in Section 6.5.1 - Economizers. 


LYLE KECK  LEED AP BD+C, EIT
SUSTAINABLE DESIGN CONSULTANT
 
AEI | AFFILIATED ENGINEERS, INC.
1601 Fifth Avenue, Suite 1400 | Seattle, WA 98101

P: 206.829.7307 | F: 206.256.0423
lkeck at aeieng.com  |  www.aeieng.com  




-----Original Message-----
From: John Aulbach [mailto:jra_sac at yahoo.com]
Sent: Friday, December 06, 2013 12:11 PM
To: Javed Iqbal; PKConsulting
Cc: equest-users
Subject: [Equest-users] checking my glasses?

has anyone read ashrae-90.1 2007, page 36 ?? it seems to say that climate zone 4a (new york city) does NOT require air economizers? this is apparently new york city adopted code  !!

----------
Sent from AT&T's Wireless network using Yahoo! Mail

------Original Message------
From: PKConsulting <pasha.pkconsulting at gmail.com>
To: "Javed Iqbal" <eee.javed at gmail.com>
Cc: "equest-users" <equest-users at lists.onebuilding.org>
Date: Thursday, December 5, 2013 7:09:16 AM GMT-0700
Subject: Re: [Equest-users] Excessive pumping power consumption

Javed,  I had a similar issue with high pumping energy on a model last year    Send us your .pd2 and .inp and weather file and I can run it on my computer and see if I can help you find the issue that is pushing your model results too high.

Pasha
Ph: 308-763-1593

> On Dec 5, 2013, at 4:53 AM, Javed Iqbal <eee.javed at gmail.com> wrote:
> 
> Hi,
> 
> Continuing to the above problem, I've generated hourly kWh consumption for all pumps and found that pump power in "Annual Energy Consumption End use report" is almost double than the summation of hourly pumps kWh consumption which includes Primary, Secondary and Condenser pumps. 
> 
> Does eQuest reports all pumping power (Primary, Secondary and Condenser pumps) in pumps & auxiliary section?
> 
> I would appreciate any help on this.
> 
> Thanks in Advance!
> 
> 
> 
> 
> 
> 
>> On Thu, Dec 5, 2013 at 8:35 AM, zhaoyongqing1987 <zhaoyongqing1987 at 126.com> wrote:
>> you can set pump schedule in chilled water loop to force pump running as per building operating hours .
>> 
>> yongqing zhao
>> 
>> 
>> At 2013-12-04 05:12:08,"John Aulbach" <jra_sac at yahoo.com> wrote:
>> Then there is a cooling load that is not shutting off. A space on 24/7? Send the .INP and .PD2. And version number. Not all of us have gone to 3.65.
>>  
>> John
>> 
>> From: Javed Iqbal <eee.javed at gmail.com>
>> To: John Aulbach <jra_sac at yahoo.com>
>> Cc: equest-users <equest-users at lists.onebuilding.org>
>> Sent: Tuesday, December 3, 2013 1:08 PM
>> Subject: Re: [Equest-users] Excessive pumping power consumption
>> 
>> Yes, All the chilled water loop operation is on demand. As such there is no heating so all the problem is on chilled water pump.
>> 
>> Thanks!!
>> 
>> 
>> On Tue, Dec 3, 2013 at 4:01 PM, John Aulbach <jra_sac at yahoo.com> wrote:
>> Javel:
>>  
>> Did you put the entity (chiller, boiler) that the pump is serving on DEMAND? Otherwise, the pump will never stop.
>>  
>> John R. Aulbach, PE
>> 
>> From: Javed Iqbal <eee.javed at gmail.com>
>> To: equest-users <equest-users at lists.onebuilding.org>
>> Sent: Tuesday, December 3, 2013 12:58 PM
>> Subject: [Equest-users] Excessive pumping power consumption
>> 
>> Dear All,
>> 
>> I'm simulating a large commercial building for LEED compliance. There i am facing a major issue in pumping power annual consumption. The proposed case pumping power is almost 7 times higher than the ASHRAE baseline case which  has great impact on my overall anticipated savings. I've generated hourly report to see the pump operations power and found propose case pump is running all year round whereas baseline is running as per building operating hours. I've thoroughly checked all the schedules assigned and it seems fine to me. My gut feeling is there is some load which is driving the pump to run throughout the year. I would appreciate if someone can give expert advice to troubleshoot this.
>> 
>> 
>> Thanks in Advance!!
>> 
>> --
>> 
>> 
>> Javed Iqbal, LEED AP, CEA
>> Sr. Energy Analyst
>> 
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> Equest-users mailing list
>> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.or
>> g To unsubscribe from this mailing list send  a blank message to 
>> EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
>> 
>> 
>> 
>> 
>> 
>> --
>> 
>> 
>> Javed Iqbal, LEED AP, CEA
>> Sr. Energy Analyst
> 
> 
> 
> --
> 
> 
> Javed Iqbal, LEED AP, CEA
> Sr. Energy Analyst
> 
> 
> 
> 
> 
> _______________________________________________
> Equest-users mailing list
> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to 
> EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG

_______________________________________________
Equest-users mailing list
http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
To unsubscribe from this mailing list send  a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG