Table 12 - Summary of CSS Data for Commercial Air Conditioner Efficiency existing Baselines Figure 5 - Histogram of AC Unit Age from Claims Made for SCE's Packaged HVAC Early Retirement Program (claim years 2013 through 2016) Table 13 - Pre-Existing Model Parameters for Nonresidential Cooling Efficiency DEER2015 New Vintages Code/ Measure Affected Standard Baseline Baseline Split AC < 65 kBtu/hr Thru 2001 10 11.5 14 Pkg AC, < 65 kBtu/hr Thru 2001 9.7 11.6 14 Split/Pkg AC, 65 to < 135 Thru 2009 10.1 10.0 11.0 kBtu/hr Split/Pkg AC, 135 to < 240 Thru 2009 9.5 9.7 10.8 kBtu/hr Pkg CV 240 to < 760 kBtu/hr Thru 2009 9.3 9.8 10.0 Pkg VAV 240 to < 760 kBtu/hr Thru 2009 9.5 10.0 10.0 no Pkg VAV >= 760 kBtu/hr Thru 2009 9.2 9.7 change Another important result gleaned from the SCE Packaged HVAC Early Retirement Claims is the prevalence of constant volume systems and variable volume systems for the larger equipment size categories. Table 14 shows the total equipment capacity from claims, organized by equipment vintage and by type of equipment. For the largest equipment size category, there were no constant volume systems. For the 240 to 760 kBtu/hr size range, 80% of systems that could be identified were variable volume. For the 135 to 240 kBtu/hr size range, only 8% were variable volume. Based on this data, constant volume systems in the largest size range have
Table 12 - Summary of CSS Data for Commercial Air Conditioner Efficiency Baselines Figure 5 - Histogram of AC Unit Age from Claims Made for SCE's Packaged HVAC Early Retirement Program (claim years 2013 through 2016) Table 13 - Pre-Existing Model Parameters for Nonresidential Cooling Efficiency Measure Vintages Affected DEER2015 Baseline New Baseline Code/ Standard Split AC < 65 kBtu/hr Thru 2001 10 11.5 14 Pkg AC, < 65 kBtu/hr Thru 2001 9.7 11.6 14 Split/Pkg AC, 65 to < 135 kBtu/hr Thru 2009 10.1 10.0 11.0 Split/Pkg AC, 135 to < 240 kBtu/hr Thru 2009 9.5 9.7 10.8 Pkg CV 240 to < 760 kBtu/hr Thru 2009 9.3 9.8 10.0 Pkg VAV 240 to < 760 kBtu/hr Thru 2009 9.5 10.0 10.0 Pkg VAV >= 760 kBtu/hr Thru 2009 9.2 no change 9.7 Another important result gleaned from the SCE Packaged HVAC Early Retirement Claims is the prevalence of constant volume systems and variable volume systems for the larger equipment size categories. Table 14 shows the total equipment capacity from claims, organized by equipment vintage and by type of equipment. For the largest equipment size category, there were no constant volume systems. For the 240 to 760 kBtu/hr size range, 80% of systems that could be identified were variable volume. For the 135 to 240 kBtu/hr size range, only 8% were variable volume. Based on this data, constant volume systems in the largest size range have existing
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