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: 51

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

Photos

Loading…
  • Add Photos
  • View All

Latest Activity

midomidi2013 liked الصفوة's blog post شركة مكافحة حشرات بالرياض
21 minutes ago
midomidi2013 posted blog posts
28 minutes ago
Profile Iconmidomidi2013, Bob Eldredge, Thomas Joseph and 1 more joined Home Energy Pros
1 hour ago
الصفوة liked الصفوة's blog post شركة مكافحة حشرات بالرياض
1 hour ago
الصفوة posted a blog post
1 hour ago
Colin Genge updated an event
Thumbnail

Measuring HVAC Performance webinar at Online

February 23, 2016 from 11am to 12pm
If you install, service or test HVAC systems you will want be there for this special webinar.…See More
1 hour ago
Colin Genge updated an event
Thumbnail

Testing for IECC Code Compliance for duct and house leakage webinar at Online

February 16, 2016 from 11am to 12pm
The International Energy Conservation Code (IECC) is in use or adopted in 47 states, the District…See More
1 hour ago
Jan Green posted a status
"I'm honored to be selected to speak at the 2016 RESNET Conference right here in sunny Scottsdale 2/29-3/2/16 with SRP & others!"
3 hours ago

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service