Bryant EVOLUTION 987MA Product Data page 8

Nominal 350 CFM/ton cooling airflow is delivered with SW1-5 and SW4-3 set to OFF.
1.
Set SW1-5 to ON for nominal 400 CFM/ton (+15% airflow).
Set SW4-3 to ON for nominal 325 CFM/ton (-7% airflow).
Set both SW1-5 and SW4-3 to ON for nominal 370 CFM/ton (+7% airflow).
The above adjustments in airflow are subject to motor horsepower range/capacity.
Maximum cooling airflow is achieved when switches SW2-1, SW2-2, SW2-3 and SW1-5 are set to ON, and SW4-3 is set to OFF.
2.
All heating CFM's are when low/medium heat rise adjustment switch (SW1-3) and comfort/efficiency adjustment switch (SW1-4) are both
3.
set to OFF.
Ductwork must be sized for high-heating CFM within the operational range of ESP . Operation within the blank areas of the chart is not
4.
recommended because high-heat operation will be above 1.0 ESP .
All airflows on 21" casing size furnaces are 5% less on side return only installations.
5.
Side returns for 24.5" casing sizes require two sides, or side and bottom, to allow sufficient airflow at the return of the furnace.
6.
AIR DELIVERY - - CFM NOTES
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