PHOTO REQUIRED of LTO Test Results per ANSI/RESNET/ICC 301-2019 APPENDIX B and MINHERS Chapter 9. If TDL result was used in place of LTO test result, then photo of TDL test results would be required in lieu of photo of LTO test results. Raters/RFIs are responsible for documenting reasons for missing photos. Duct leakage is tested according to ANSI/RESNET/ICC 380.
- Total duct leakage (TDL) and leakage to outside (LTO) are entered into software separately. TDL has no energy effect on the model; LTO does have an energy effect.
- Although many compliance programs allow TDL to be input to the software as LTO, and vice versa, documentation should represent which test was used.
- Locations for the test (return register, return trunkline or airhandler, supply register or supply trunkline) should be documented and ideally reproduced for Field QA Review testing.
SCORING:
"Satisfactory" when correct or "Unsatisfactory" when incorrect or NO PHOTO.
GUIDANCE:
LTO CFM25 - Field QA: QAD tested value within 10% of Rater/RFI value. File QA: At least one photo provided from Rater/RFI which shows test results TDL CFM25 - Field QA: QAD tested value within 10% of Rater/RFI value. File QA: At least one photo provided from Rater/RFI which shows test results
Was this article helpful?
That’s Great!
Thank you for your feedback
Sorry! We couldn't be helpful
Thank you for your feedback
Feedback sent
We appreciate your effort and will try to fix the article