[Equest-users] Water Loop HP system type fan power

Howe, Timothy Timothy.Howe at stantec.com
Fri Mar 1 12:15:39 PST 2013

I typically see around 0.000400 on HP system.  Give or take a little bit depending on how you do your calc and what kind of electrical efficiency you assess to a fractional hp motor.

3 ton McQuay unit:

[cid:image002.png at 01CE168F.A239E280]

Timothy Howe, MS, BEMP, LEED® AP BD+C
Mechanical Engineer
61 Commercial Street
Rochester NY 14614
Ph:   (585) 413-5347
Fx:   (585) 272-1814
Cell: (585) 281-3223

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From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Bishop, Bill
Sent: Friday, March 01, 2013 3:06 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Water Loop HP system type fan power

The eQUEST default is .000070 kW/cfm for the HP system type. This is the same as the default for Unit Heaters, and seems really low. It is only 1/4th the Appendix G. baseline PTAC/PTHP fan power, which has been criticized as too low in another [neverending] thread.
Could there be an extra zero in there? (No, not the one on the end.)


[cid:image003.jpg at 01CE168F.A239E280]<mailto:wbishop at pathfinder-ea.com>

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