[Equest-users] ASHRAE Answer to 22 W/Gal Primary-Secondary Pump Question
Paul Diglio
paul.diglio at sbcglobal.net
Wed Dec 1 09:22:05 PST 2010
FYI
----- Forwarded Message ----
From: "Hammerling, Steve"
To: "paul.diglio at sbcglobal.net" <paul.diglio at sbcglobal.net>
Sent: Wed, December 1, 2010 9:05:08 AM
Subject: FW: 90.1-2007 G3.1.3.10 Question
Mr. Diglio,
I received a reply from the chair of the subcommittee that authored Appendix G.
He notes the following:
I have always interpreted that as 22 W/gpm for the entire pumping system so if
multiple pumps are used they need to add up to 22 W/gpm. It is up to the modeler
to decide how to split the 22 W/gpm up.
I hope this information is useful to you.
Sincerely
Steve Hammerling
Technical Services Engineer
> *From:*Paul Diglio [mailto:paul.diglio at sbcglobal.net]
> *Sent:* Wednesday, November 17, 2010 10:15 AM
> *To:* ASHRAE (Internet Email)
> *Subject:* 90.1-2007 G3.1.3.10 Question
>
> Dear Sir or Madam:
>
> I have a question concerning the pumping power requirement
> in the above section.
>
> For a primary-secondary loop design, does the 22w/gpm
> include both pumps or is it 22w/gpm per pump?
>
> Thank you,
>
> Paul Diglio
> 203-415-0082
>
________________________________
Steve Hammerling, Assistant Manager of Research & Technical Services
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc
1791 Tullie Cir. Atlanta, GA 30329
Direct Line: 678-539-1158 Fax: 678-539-2158 eMail:
shammerling at ashrae.org Web: www.ASHRAE.org
Don’t gamble when it comes to sustainable building. Attend ASHRAE’s 2011 Winter
Conference in Las Vegas to learn more.
PPlease consider the environment before printing this e-mail.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20101201/ef6809a1/attachment.htm>
More information about the Equest-users
mailing list