1. A filter is required for each return-air inlet. Airflow performance included 3/4-in. (19 mm) washable filter media such as contained in factory-authorized
accessory filter rack. To determine airflow performance without this filter, assume an additional 0.1 In. W.C. available external static pressure.
2. Adjust the blower speed tabs as necessary for the proper air temperature rise for each installation.
3. Highlighted areas indicate airflow range is beyond the range allowed for heating. THESE AIRFLOW RANGES MAY ONLY BE USED FOR COOLING.
4. -- Indicates unstable operating conditions.
441 01 1421 02
Table 5 – Air Delivery − CFM (With Filter)*
Test Airflow Delivery @ Various External Static Pressures (in. w.c.)
SPEED
0.1
0.2
5
1230
1190
4
980
945
3
770
720
2
710
660
1
600
540
5
1185
1140
4
1000
940
3
990
935
2
855
775
1
860
685
5
1610
1565
4
1385
1335
3
1215
1165
2
1175
1130
1
1080
1015
5
1355
1320
4
1295
1255
3
1220
1185
2
1030
985
1
3
945
905
5
1625
1580
4
1440
1395
3
1425
1380
2
1260
1210
1
3
1095
1040
5
2180
2130
4
1900
1845
3
1685
1620
2
1390
1315
1
3
1240
1155
5
2255
2205
4
1600
1525
3
1945
1890
2
1420
1340
1
1280
1205
5
2065
2005
4
1825
1760
3
1760
1690
2
1620
1550
1
3
1325
1260
Specifications are subject to change without notice.