Laserfiche WebLink
7.A. - Page 275 of 285 <br />2019 Nonresidential New Construction Reach Code Cost Effectiveness Study <br />Building Component <br />Measure Name <br />Measure Description <br />Notes <br />Include? <br />With adoption of ASHRAE Guideline 36 (GDL-36), there is <br />now a national consensus standard for the description of <br />high-performance sequences of operation. This measure <br />will update BAS control requirements to improve <br />In order to realize any savings in the difference, we <br />usability and enforcement and to increase energy <br />would need a very detailed energy model with space - <br />HVAC <br />Building Automation System (BAS) <br />efficiency. BAS control requirement language will be <br />by -space load/occupant diversity, etc. We would also <br />N <br />improvements <br />improved either by adoption of similar language to GDL- <br />need more modeling capability than is currently <br />36, or reference to GDL-36. Specific T24 BAS control <br />available in CBECC Com. <br />topics that will be addressed include at a minimum: DCV, <br />demand -based reset of SAT, demand -based reset of SP, <br />dual -maximum zone sequences, and zone groups for <br />scheduling. <br />Expand FDD requirements to a wider range of AHU faults <br />beyond the economizer. Fault requirements will be based <br />on NIST field research, which has consequently been <br />HVAC <br />Fault Detection Devices (FDD) <br />integrated into ASHRAE Guideline 36 Best in Class <br />Market not ready. <br />N <br />Sequences of Operations. Costs are solely to develop the <br />sequences, which is likely minimal, and much of the <br />hardware required for economizer FDD is also used to <br />detect other faults. <br />Hot water pump energy use is small already (<1% <br />HVAC <br />Small circulator pumps ECM, trim <br />Circulator pumps for industry and commercial. <br />building electricity usage) so not much savings <br />N <br />to flow rate <br />potential. More savings for CHW pumps. Modeling <br />limitations as well. <br />High Performance Ducts to <br />Revise requirements for duct sizing to reduce static <br />Preliminary energy modeling results showed only <br />HVAC <br />Reduce Static Pressure <br />pressure. <br />marginal energy savings compared to measure cost. <br />N <br />HVAC <br />Parallel fan -powered boxes <br />Use of parallel fan -powered boxes <br />Unable to model PFPB with variable speed fans in <br />N <br />modeling software. <br />Lighting <br />Daylight Dimming Plus OFF <br />Automatic daylight dimming controls requirements <br />y <br />include the OFF step. <br />Lighting <br />Occupant Sensing in Open Plan <br />Take the PAF without allowing for increased design <br />y <br />Offices <br />wattage <br />Lighting <br />Institutional tuning <br />Take the PAF without allowing for increased design <br />y <br />wattage <br />100 <br />2019-07-25 <br />527 <br />