Title 24 Compliance

building climate zones

Home Energy Rating System (HERS)

HERS Field Verification (for information only; Alaco does not provide HERS verification services)

As stated in the 2013 Residential Compliance Manual, field verification and diagnostic testing is only required when certain regulated efficiency measures or equipment features are installed. If such efficiency measures or equipment features are not installed, then field verification and diagnostic testing is not required. For example, if a dwelling that must comply with the Standards does not have air distribution ducts, then HERS verification of duct leakage is not required for compliance.

The following features require field verification and/or diagnostic testing:

a) Duct Sealing b) Supply Duct Location, Surface Area and R-Value c) Low Leakage Ducts in Conditioned Space d) Low Leakage Air Handlers e) Verification of Return Duct Design f) Verification of Air Filter Device Design g) Verification of Bypass Duct Prohibition h) Refrigerant Charge in ducted Split System and ducted Packaged Unit Air Conditioners and Heat Pumps, and mini-split systems i) Refrigerant Charge Indicator Display (CID) j) Verified System Airflow k) Air Handler Fan Efficacy l) Verified Energy Efficiency Ratio (EER) m) Verified Seasonal Energy Efficiency Ratio (SEER) n) Maximum Rated Total Cooling Capacity o) Evaporatively Cooled Condensers p) Ice Storage Air Conditioners q) Continuous Whole-Building Mechanical Ventilation Airflow r) Intermittent Whole-Building Mechanical Ventilation Airflow s) Building Envelope Air Leakage t) High Quality Insulation Installation (QII) u) Quality Insulation Installation for Spray Polyurethane Foam v) PV Field Verification Protocol w) Verified Pipe Insulation Credit x) Verified Parallel Piping y) Verified Compact Hot Water Distribution System z) Verified Point of Use aa) Demand Recirculation: Manual Control bb) Demand Recirculation: Sensor Control cc) Multiple Recirculation Loop Design for DHW Systems Serving Multiple Dwelling Units