(CIE) Guide - Building Energy Codes

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Manual D SubmittalA Manual D duct design is required for each building.The Manual D submittal may be deferred in order tobe as installed instead of as designed, but be advisedthis document must be submitted a minimum of 2weeks prior to rough inspection and must complywith the requirements of ACCA Manual D. Design theManual D with air conditioning included.The Manual D submittal must be a schematic designrather than just a list of pipe sizes and lengths orequivalent duct lengths. The design must includetake-off locations and sizes, register sizes, returnair opening size, and duct run length and size. Theschematic design enables the building inspector tohave a document to inspect from.General InformationThe requirement for site-specific informationis not something we will waive at this time._________________(jurisdiction) Building Divisionis aware of the additional burden this will place ondesigners. However, we must consider the time it willtake to review numerous submittals. We need to allowour staff the time to accurately review the submittedinformation and continue to issue permits. We wouldnot be able to issue any permits in a timely manner ifwe received a large influx of “mastered” submittals allat once. In addition, we do not have historical data toshow that mastered energy submittal will accuratelyreflect the building.As we continue through this process we will contactthe residential builders with further informationregarding any changes to our submittal requirements._________________(jurisdiction) Building Inspectionstaff will be in contact with the residential builders todiscuss the changes to the inspection program as aresult of the adoption of the 2009 energy codes.__________________(jurisdiction) Building Divisionappreciates the cooperation of all of the builders anddesigners in this matter. Your continued cooperationwill keep this process moving forward and help toallow us to review your plans and issue permits in atimely manner.Climate Zone:Elevation:(Jurisdiction Name) Design ParametersOutdoor Dry Bulb (winter)Outdoor Dry Bulb (summer):Indoor Dry Bulb (winter):Indoor Dry Bulb (summer):52COMPLIANCE IMPLEMENTATION AND EVALUATION (CIE) GUIDE
Jurisdiction ActionSheet 5 (JAS 5)Residential Envelope andDuct Leakage Testing ProtocolWhat’s Required in the2009 IECCEnvelope Air TightnessThe 2009 IECC allows two options for verification ofresidential envelope tightness:1. The builder can opt to test the building envelopetightness per Section 402.4.2.1 of the 2009 IECC.2. The builder may use a visual inspection method asdescribed in Section 402.4.2.2 of the 2009 IECCand in Table 402.4.2.Duct TightnessDuct tightness shall be verified through a duct leakagetest unless all ductwork and the air handler residewithin the conditioned space of the building. There arethree protocols for testing duct air leakage, each withdifferent leakage requirements.1. Post-Construction Option 1: Leakage to theoutdoors = 8 cfm per 100 ft 2 of house. Underthis option, simultaneous envelope and ductdepressurization are performed to identifyduct leakage to the outside of the buildingthermal envelope. Both envelope and ductdepressurization are set to 0.1 inches of wateror 25 pascals.Duct Leakage—leakage to outsideBecause some duct leakage may occur withinthe conditioned space of the building, a duct testoption for measuring leakage only to the outsideof the building may be utilized for certification.For this test, a blower door is used to pressurizethe house to 25 pascals and a duct blasterpressurizes the ductwork to the same level.Because the house is at the same pressure as theductwork, any measured leakage is leakage to theoutside of the building and represents heating orcooling energy that is directly wasted.2. Post-Construction Option 2: Total duct leakage= 12 cfm per 100 ft 2 of house. Under this option,duct leakage is measured separate from envelopedepressurization. The duct depressurization is setto 0.1 inches of water or 25 pascals.Duct Leakage—total leakageThe duct blaster is connected to the air handler topressurize (or depressurize) the taped-over ductsystem to 25 pascals. The blower door is not usedfor this test. The Total CFM25 amount of ductleakage is determined.3. Rough-in Test Option: Total leakage shall be lessthan or equal to 6 cfm per 100 ft 2 .COMPLIANCE IMPLEMENTATION AND EVALUATION (CIE) GUIDE53
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