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HomeMy WebLinkAbout221 Longleaf Ln - Disclosures/Mechanical - 10/25/2017Systems other than sub-structural floor exhaust CFM 5000' CFM 5000' to CFM 5000' When supply airflow is circulated by air handler fan, fan speed for measurement Balanced airflow in balanced systems  Pass  Fail Sub-structural floor exhaust  N/A -- no sub-structural floor exhaust system CFM 5000' CFM 5000' Measured airflow Indicated flow CFM Volumetric flow CFM 5000'  Pass  Fail sf Design exhaust airflow (based on approved design) (code-minimum) (120% of design flow) Target ventilation airflow range System type __ Exhaust-only __ Supply-only __ Balanced Code-minimum ventilation airflow (based on CFA and # of BR) __ Heating __ Cooling __ Continuous fan Total exhaust airflow Total supply airflow ADCF Air Temp Through Tool (F) Tool Location Measured Airflow Pass  3. Whole-House Ventilation Testing tech (initials)  __ Passive flow hood __ Pitot tube traverse __ Other (note below) __ N/A __ Flow box __ Flow collar Fail __ Passive flow hood __ Pitot tube traverse __ Other (note below)  Design ventilation airflow Testing notes __ Flow box __ Passive flow hood __ Powered flow hood Included 4 Leakage Type Total leakage Total leakage Total leakage Test Parameter and Conditions Measured Duct Leakage Rough-in Complete Rough-in Testing tech (initials) 4. Heating + Cooling Duct Leakage Duct leakage data source Testing notes House conditioned floor area (include full basement) Pass Fail Target airflow limits (design +/- 15%) to N/A Flow tool __ Pitot tube traverse __ Flow collar __ Other (note below) Tool location  Air temp through tool (F) ADCF Excluded 3 (CFM25 5000') Included 4  Measurement Method Indicated Flow (CFM) Volumetric Flow (CFM 5000') Average of measured supply + exhaust flows CFM 5000' Target flow range (average +/- 15%) to CFM 5000' __ N/A __ Flow box __ Flow collar __ Testing tech (initials): __ Energy rater (name, company, testing date):  Normalized Absolute Maximum Allowed Duct Leakage (CFM25 5000' / 100 sf) ADCF Timing Air Handler Pass Fail    Air temp through tool (F)        __ No ductwork __ No ductwork outside conditioned space Testing notes (incl multiple sys) Indicated (CFM25) (CFM25 5000') Volumetric System #1 System #2 Residential Mechanical Design Submittal V20140307 Page 2