toc i technical support document commercial unitary air conditioners and heat pumps chapters chapter 1 introduction 2 analytical framework 3 market technology assessment 4 screening analysis 5 engineering 6 building energy use end load characterization 7 markups for equipment price determination 8 life cycle cost payback period 9 shipments 10 national impact 11 sub group 12 manufacturer 13 utility 14 employment reports environmental regulatory appendices appendix a technologies that are not considered in the b description of estimation methodology c design option supporting documentation d parm file contents e frequency occurrence buildings type by aspect ratio bin each six principal activities pbas f calculations with courtyards g lights plug occupancy schedules h number cbecs assigned to tmy2 city typical meteorological