Duct Leakage Test Form Nc

Block if present the ventilation air duct connected to the conditioning system.

Duct leakage test form nc.

Building air leakage visually inspected according to 402 4 2 1 or building air leakage test results sec. Use only approved durable materials to seal ducts. Get and sign nc duct leakage test form pressure differential of 0 1 inches w g. 25 pa across the entire system including the manufacturer s air handler enclosure.

Duct tightness shall be verified as follows. Example blank form duct leakage test form customer information. Joints and seams shall comply with section 603 of the nc mechanical code. 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.

Mastic works best on metal ducts and seams. The nc 2012 residential energy code requires duct testing in new homes. 0 30 name of tester company. Retrotec model 200 ductester operation manual for residential applications rev 2015 01 22.

In both cases the requirements are the same. Duct air leakage test section 403 2 2 sample worksheet n1103 2 2 sealing. 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. Perform the hvac system air leakage test and record the cfm25. Meeting the nc 2012 energy code requirements. All ducts air handlers filter boxes and building cavities used as ducts shall be sealed.

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. 6 name of tester company. 403 2 2 cfm25 total 100sf target.