Duct leakage testing manual

SMACNA recently stated in the forward of the 2nd edition HVAC Air Duct Leakage Manual (), “SMACNA encourages designers to specify equipment (air) leakage control and to rely on prescriptive sealing ductwork as measures that will normally lead to effective control of (air) leakage without the need for extensive (air) leakage testing.”File Size: KB. Leakage System Condition Test Pressure 1,7, in. WC (Pa) Allowable System Leakage VAV8 and CAV8 return systems Not Addressed Operating System Operating Pressure 5% During Downstream 5% Construction box: () Upstream box: () 1 Test pressure should not exceed the pressure rating of the www.doorway.ru Size: KB. Duct Leakage Testing: Duct Leakage testing has become a requirement in many jurisdictions and counties throughout Colorado. The purpose of duct leakage testing is to evaluate how well a home’s duct system can hold air. The idea behind it is that the more air that leaks out of the duct system, the more potential energy loss can occur.

SEAL CLASS REQUIREMENTS AND PREDICTED AIR LEAKAGE RATES. INFORMATION ON SPECIFICATIONS. CHAPTER 2 OVERVIEW [ Go to Page] GENERAL APPLICATION. SEALING PROVISIONS. LEAKAGE FACTORS. DUCT CONSTRUCTION AND INSTALLATION STANDARDS. DUCT SEALING COMMENTARY. CHAPTER 3 RESPONSIBILITIES [ Go to Page]. Cap off all ends of system using clear plastic and duct tape or sheetmetal duct end caps. Make sure you test the part of the duct system that leakage testing is required. Usually, this is from the system fan up to, but not including, the VAV boxes (terminal units). Refer to the engineer's specifications and all applicable codes and test standards. HVAC Air Duct Leakage Test Manual Order No. 2 nd edition, , pages: This American National Standard, ANSI/SMACNA , covers revised leakage criteria and builds on the proven methods for testing ductwork for air leaks from the first edition.

3 inches water column ( Pa) and all ductwork located outdoors shall be leak-tested in accordance with the SMACNA HVAC Air Duct Leakage Test Manual. HVAC Air Duct Leakage Test Manual (RS). 10 CFR Sheet Metal and Air Conditioning Contractors'. National Association (SMACNA). 1 may earlier editions in recommending against duct leakage testing [10] SMACNA Standard: HVAC air duct leakage test manual,. 2nd edition.