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: 55

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

Videos

  • Add Videos
  • View All

Twitter

Latest Activity

Tom White posted a discussion

Home Energy Reader Survey

Home Energy wants to serve you better.  Please …See More
5 hours ago
George Matthews's event was featured

Proof is Possible Tour by the Home Performance Workshop at Truitt and White Lumber Conference Room

October 7, 2016 from 9am to 1pm
Building Energy Performance Testing is sponsoring the Proof is Possible Tour to come to the San…See More
11 hours ago
Profile IconAshley Noreuil, Fred Smith and Peter Moncada joined Home Energy Pros
14 hours ago
George Matthews commented on George Matthews's event Proof is Possible Tour by the Home Performance Workshop
"Here is the flyer for the Advanced Techniques and Tools in Home Performance Friday October 7th at…"
yesterday
George Matthews posted an event

Proof is Possible Tour by the Home Performance Workshop at Truitt and White Lumber Conference Room

October 7, 2016 from 9am to 1pm
Building Energy Performance Testing is sponsoring the Proof is Possible Tour to come to the San…See More
yesterday
George Matthews replied to George Matthews's discussion Shortridge 8400 Flowhood for A/C airflow testing in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Here are the pics of the flowhood and airdata manometer"
Saturday
Sarah Holloway posted a photo
Friday
Joe Urycki added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
Thumbnail

TEC blower door and UEI combustion analyzer for sale

For sale is one used TEC Minneapolis blower door system: Includes model 3 fan with rings A and B,…See More
Friday

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service