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<br /> <br /> <br /> <br /> <br /> <br /> 7 <br /> <br /> <br /> <br /> <br /> <br />North Carolina Alternative Energy Corp. <br /> This non-profit organization examined air conditioning manufacturers' efficiencies <br />versus the actual efficiencies that resulted after installation <br />• 90% of the units tested exhibited some sort of energy-wasting problem <br />• 50% had an improper refrigerant charge <br />• 40% failed to meet minimum air flow criterion. 20% were barely inside the range <br />specified by manufacturers. <br />• A deficiency of 20% in air flow reduces the SEER rating by 17%. <br />• A 15% return air leak from a 120° attic could reduce a 12 SEER to 6! <br /> <br />Texas A&M University <br /> Found that a 23% refrigerant undercharge could result in a 52% efficiency loss. <br /> <br /> Pacific Gas & Electric <br /> found the average heating energy savings for (1) repair of disconnected ducts was 15% <br />(2) Repair of diffuser leakage 7.5% (3) correct low air flow 5.6% (4) repair leaks and correct <br />refrigerant charge 18.4%. <br /> <br /> Lakeland Electric & Water <br /> And the Florida Solar Energy Center's researchers found that by repairing leaking duct <br />work, cooling energy was reduced by an average of 17.4%. <br /> <br /> Honeywell <br /> Found that a typical heat pump would lose almost 50% of its efficiency after 20 years, <br />even if a typical "dust stop" filter had been installed. <br /> <br />• In 20 years, a 12 SEER unit could degrade to a 6 SEER if it is not properly maintained. <br />This would double the energy cost! <br /> <br /> Louisiana State University <br /> And Gulf States Utility found consumers could save about $30 per month just by making <br />sure that their air conditioning system is cleaned and serviced regularly. <br /> <br /> Industry research shows: <br />• Every .01" of dirt on evap. coil can increase operating costs by 5% <br />10% refrigerant undercharge can increase operating costs by 20% <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />DocuSign Envelope ID: 8DFA778B-2792-4789-B635-3ECE69F5B8EC