Bryant EVOLUTION 986TA Product Data page 6

AIR DELIVERY - - CFM (BOTTOM RETURN WITH FILTER) (CONTINUED)
INPUT Cooling Switch Settings
BTUH SW2-3 SW2-2
OFF OFF
OFF OFF
OFF ON
OFF ON
ON OFF
ON OFF
100000
ON ON
ON ON
Maximum Cooling Airflow
High Heat Airflow
Low Heat Airflow
Cooling Switch Settings
INPUT
BTUH
SW2-3 SW2-2
OFF OFF
OFF OFF
OFF ON
OFF ON
ON OFF
6
120000
ON OFF
ON ON
ON ON
Maximum Cooling Airflow
High Heat Airflow
Low Heat Airflow
1. Nominal 350 CFM/ton cooling airflow is delivered with SW1-5 and SW4-3 set to OFF.
Set both SW1-5 and SW4-3 to ON for +7% airflow (nominal 370 CFM/ton).
Set SW1-5 to ON and SW4-3 to OFF for +15% airflow (nominal 400 CFM/ton).
Set SW4-3 to ON and SW1-5 to OFF for -7% airflow (nominal 325 CFM/ton).
2. Maximum cooling airflow is achieved when switches SW3-1, SW3-2, SW3-3 and SW1-5 are set to ON, and SW4-3 is set to OFF.
3. All heating CFM's are when low heat rise adjustment switch (SW1-3) and comfort/efficiency adjustment switch (SW1-4) are both set to OFF.
4. Ductwork must be sized for high-heating CFM within the operational range of E.S.P. Operation within the blank areas of the chart is not recommended
because high-heat operation will be above 1.0 E.S.P.
5. All airflows on 21" (533 mm) casing size furnaces are 5% less on side return only installations.
6. Side returns for 24.5" (622 mm) casing sizes require two sides, or side and bottom, to allow sufficient airflow at the return of the furnace.
7. Airflow not stable at this E.S.P.
(SW1-5 and SW4-3 set to OFF, except as indicated. See Notes 1 and 2.)
SW2-1 0.1 0.2
OFF 2115 2035
ON 870 715
OFF 1025 950
ON 1210 1165
OFF 1400 1355
ON 1615 1570
OFF 2115 2035
ON 2115 2035
2
2115 2035
3
2115 2035
3
1575 1530
SW2-1 0.1 0.2
OFF 2010 1960
ON 1015 805
OFF 1075 975
ON 1205 1135
OFF 1400 1330
ON 1615 1550
OFF 2010 1960
ON note 7 2375
2
note 7 2375
3
note 7 2375
3
1735 1675
External Static Pressure (E.S.P .)
0.3 0.4 0.5
1965 1890 1805 1725
585 525 450
900 835 770
1105 1055 1000 950
1295 1250 1205 1155
1525 1485 1435 1395
1965 1890 1805 1725
1965 1890 1805 1725
1965 1890 1805 1725
1965 1890 1805 1725
1485 1445 1395 1350
External Static Pressure (E.S.P .)
0.3 0.4 0.5
1910 1850 1800 1750
645 550 480
915 835 765
1055 1000 935
1260 1190 1145 1080
1500 1435 1370 1325
1910 1850 1800 1750
2300 2205 2115 2010
2300 2205 2115 2010
2300 2205 2115 2010
1625 1560 1500 1455
6
0.6 0.7 0.8 0.9
1625 1540 1435
895 845 800
1110 1060 1020
1345 1310 1260
1625 1540 1435
1625 1540 1435
1625 1540 1435
1625 1540 1435
1305 1265 1215
0.6 0.7 0.8 0.9
1690 1645 1565
1035 970 905
1265 1215 1160
1690 1645 1565
1890 1750 1645
1890 1750 1645
1890 1750 1645
1395 1345 1285
1.0
1345
735
960
1210
1345
1345
1345
1345
1165
1.0
1480
845
1110
1480
1550
1550
1550
1225