Percentage change in power Pre/post metering 9 primary 157% relative to post wattage only* 0 secondary ECM power normalized by All ECM 42 primary 758 W/hp horsepower (see Figure 42) measurements 24 secondary SP power normalized by All SP 13 primary 2,088 W/hp horsepower (see Figure 45) measurements 5 secondary All uncontrolled 97.8%** Effective run time of 32 primary metering (ECM and uncontrolled motors 0 secondary SP) All control 66.5%** Effective run time of all 25 primary metering (ON/OFF control styles 0 secondary and multi-speed) Effective run time of ON/OFF style 12 primary 63.6%** ON/OFF style control control metering 0 secondary Effective run time of Multi-speed style 13 primary 69.2%** speed style controls control metering 0 secondary * We calculated this parameter by first computing for each unit for which we collected both pre and post measurements and then averaging these nine values. ** This is an annual run-time value defined as the sum of the hourly run-time values from the population average profile. The EF power parameters are calculated as W/hp so the program administrator (PA) can multiply the parameter by the installed motor horsepower to calculate the W/motor for the baseline case and installed case. PAs that do not track rated horsepower information should use a default motor size of 1/15 hp based on the most common motor size observed in this study (see Figure 2). The baseline case for evaporator fan motors is assumed to be shaded pole (SP) motors because more than 90% of observed baseline motors were SP. Key Parameters for ASDH Controls Table 5 shows the average parameters calculated for the baseline and installed case. Table . Average Parameters - ASDH Meter Sample Parameter Description Source Value (# Circuits) All door heater 21 primary Operating power per door 130 W/door measurements 6 secondary Effective run time of All uncontrolled 10 primary 90.7%* uncontrolled heaters metering 0 secondary All control style 45.6%* Effective run time of all control 11 primary metering (ON/OFF styles 8 secondary** and micropulse)
Percentage change in power relative to post wattage Pre/post metering only* 9 primary 0 secondary 157% ECM power normalized by horsepower (see Figure 42) All ECM measurements 42 primary 24 secondary 758 W/hp SP power normalized by horsepower (see Figure 45) All SP measurements 13 primary 5 secondary 2,088 W/hp Effective run time of uncontrolled motors All uncontrolled metering (ECM and SP) 32 primary 0 secondary 97.8%** Effective run time of all control styles All control metering (ON/OFF and multi-speed) 25 primary 0 secondary 66.5%** Effective run time of ON/OFF style control ON/OFF style control metering 12 primary 0 secondary 63.6%** Effective run time of style controls Multi-speed style control metering 13 primary 0 secondary 69.2%** * We calculated this parameter by first computing for each unit for which we collected both pre and post measurements and then averaging these nine values. ** This is an annual run-time value defined as the sum of the hourly run-time values from the population average profile. The EF power parameters are calculated as W/hp so the program administrator (PA) can multiply the parameter by the installed motor horsepower to calculate the W/motor for the baseline case and installed case. PAs that do not track rated horsepower information should use a default motor size of 1/15 hp based on the most common motor size observed in this study (see Figure 2). The baseline case for evaporator fan motors is assumed to be shaded pole (SP) motors because more than 90% of observed baseline motors were SP. Key Parameters for ASDH Controls Table 5 shows the average parameters calculated for the baseline and installed case. Table . Average Parameters - ASDH Parameter Description Source Meter Sample (# Circuits) Value Operating power per door All door heater measurements 21 primary 6 secondary 130 W/door Effective run time of uncontrolled heaters All uncontrolled metering 10 primary 0 secondary 90.7%* Effective run time of all control styles All control style metering (ON/OFF and micropulse) 11 primary 8 secondary** 45.6%* speed