Duct Leakage Test Form Nc

Perform the hvac system air leakage test and record the cfm25. 25 pa across the entire system including the manufacturer s air handler enclosure. All ducts air handlers filter boxes and building cavities used as ducts shall be sealed.

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6 name of tester company.

Duct leakage test form nc.

Get and sign nc duct leakage test form pressure differential of 0 1 inches w g. Example blank form duct leakage test form customer information. 0 30 name of tester company. Joints and seams shall comply with section 603 of the nc mechanical code.

Total duct leakage rate must be 6 or less and recorded on the energy efficiency certificate. Insulation r total duct leakage test result sect. If different from above street. The duct leakage information including duct leakage test selected and result tester name date and contact information shall be included on the certificate described in section n1101 3.

Duct air leakage test section 403 2 2 sample worksheet n1103 2 2 sealing. Retrotec model 200 ductester operation manual for residential applications rev 2015 01 22. Meeting the nc 2012 energy code requirements. Ul181 labeled tape or mastic.

In both cases the requirements are the same. Mastic works best on metal ducts and seams. Building air leakage visually inspected according to 402 4 2 1 or building air leakage test results sec. Block if present the ventilation air duct connected to the conditioning system.

A duct leakage test duct testing can be performed at rough in before drywalling or post construction. Use only approved durable materials to seal ducts. The system will need to achieve a leakage rate of less than 4 cfm cubic feet per minute per 100 square feet of the home. For the test criteria the report shall be produced in the following manner.

Duct tightness shall be verified as follows. The nc 2012 residential energy code requires duct testing in new homes. 403 2 2 cfm25 total 100sf target.