Pilot Results Sizing Results - Replacement units were typically 0.5 to 1.0 Tons smaller but still oversized per the guidelines Issues - Sizing is essentially self reporting (difficult to verify) - 1% Design temperatures Strategy- Focus on downsizing not right-sizing - Allow for micro climate design temperatures - Manual J training is an entry requirement Air Flow Results - 90% of verified sites passed the in- field verification Issues - Guidelines are not standard practice - Lack of proper equipment Strategy- Approved air flow technique training is an entry requirement - Verifier should use same method to ensure consistency Airflow per ton of Installed Capacity 250 300 350 400 450 500 05101520253035 Unit Number Airflow (CFM) Percent of Load Installed 0 1 2 3 4 5 6 95% 100%105%110%115%120%125%130% 135%140%145%150%155%160%165%170%175%180%185%190%200% Count
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