I'm looking for good reference data for modeling HVAC equipment using make and model number.  Preston's doesn't work so well, few Mfr. sites work well.  What do you use?

Views: 63

Replies to This Discussion

When you say you want data for modeling the equipment, what exactly do you mean, Stan? Are you talking about modeling it in REM/Rate or REM/Design? Using Manual J/S/T/D? Something else?

We use ahridirectory.org for new systems and Preston's Guide for older systems when putting the efficiency and capacity into REM/Rate. If neither of those works, we resort to the age-based defaults from the HERS Standards (pp. 3-34 & 3-35).

For HVAC design work, you have to get the mfr's performance data because you need fan curves and more.

I neglected to say that I need the data for modeling in REM, TREAT and a couple other rater/auditor tools.  Thanks for the information Allison.  I don't have good success with the AHRI site either though.

No one that I know has good success with AHRI! It only works for systems currently in production and then not always. If you know the system is new enough and the coils are matched in the AC/heat pump, you can always call them up and get them to help you with it if it's really critical. Sometimes it's in their system, and that's the only way to get it out. You also need to have other methods, like the ones I mentioned above.

RSS

Discussion Forum

HVAC integration – the past, the present, and the future

Started by Igor Mitbarg. Last reply by Lucifer Prescott Apr 11. 1 Reply

Target superheat formula

Started by Miguel Orduno. Last reply by John Proctor Feb 18, 2015. 6 Replies

Now for Something Different

Started by John Porterfield. Last reply by John Porterfield Jan 12, 2015. 2 Replies

Latest Activity

Eric Kjelshus replied to Energy Wise Solutions's discussion What causes a temperature plane in a home
"Hot air goes up and cool air goes down.   I put in returns high and low.  In summer use…"
3 hours ago
John Nicholas replied to Luis Hernandez's discussion Solar panel leasing
"The variables in buying a solar panel installation: Equipment -  Length of all Guarantees,…"
4 hours ago
Richard Drohan liked Brian Sipp's discussion Minneapolis Duct Blaster System with DG-700 For Sale
12 hours ago
Richard Drohan liked John Wagner's discussion Barely Used Energy Equipment for Sale
12 hours ago

Photos

Loading…
  • Add Photos
  • View All

© 2017   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service