SERVICE AND TECHNICAL SUPPORT MANUAL
Gas Furnace: (F/G)9MAC
Specifications subject to change without notice.
18
440 04 4201 03
Table 6 (Cont.) COOLING
4
AND HEATING AIR DELIVERY - CFM (Bottom Return
5
with Filter)
Unit Size
Clg/CF Switch Settings
External Static Pressure (ESP)
SWx-3
SWx-2
SWx-1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
080-14
Clg Default:
OFF
OFF
OFF
1055
1065
1080
1075
1065
1050
1045
1035
1025
1005
CF Default:
OFF
OFF
OFF
520
505
505
495
490
See note 4
Cooling (SW2)
Cont Fan (SW3)
OFF
OFF
ON
520
505
505
495
490
See note 4
OFF
ON
OFF
665
685
680
660
665
See note 4
OFF
ON
ON
885
895
905
900
900
895
885
875
860
845
ON
OFF
OFF
1055
1065
1080
1075
1065
1050
1045
1035
1025
1005
ON
OFF
ON
1245
1245
1255
1255
1260
1255
1250
1235
1220
1185
ON
ON
OFF
1245
1245
1255
1255
1260
1255
1250
1235
1220
1185
ON
ON
ON
1245
1245
1255
1255
1260
1255
1250
1235
1220
1185
Clg SW2:
Maximum Clg Airflow
2
1520
1485
1450
1415
1375
1335
1300
1265
1225
1190
Heating
(SW1)
Maximum Heat Airflow
3
1520
1485
1450
1415
1375
1335
1300
1265
1225
1190
Intermediate Heat Airflow
3
755
745
755
755
765
See note 4
Minimum Heat Airflow
3
620
625
630
620
610
See note 4
Unit Size
Clg/CF Switch Settings
External Static Pressure (ESP)
SWx-3
SWx-2
SWx-1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
080
−
20
Clg Default:
OFF
OFF
OFF
1745
1755
1755
1760
1755
1750
1745
1725
1705
1685
CF Default:
OFF
OFF
OFF
700
710
750
725
750
See note 4
Cooling (SW2)
Cont Fan (SW3)
OFF
OFF
ON
700
710
750
725
750
See note 4
OFF
ON
OFF
830
860
870
890
960
See note 4
OFF
ON
ON
1045
1045
1060
1070
1070
1070
1095
1090
1080
1070
ON
OFF
OFF
1215
1220
1245
1240
1235
1235
1225
1220
1235
1235
ON
OFF
ON
1370
1370
1390
1390
1400
1395
1400
1390
1390
1385
ON
ON
OFF
1745
1755
1755
1760
1755
1750
1745
1725
1705
1685
ON
ON
ON
1745
1755
1755
1760
1755
1750
1745
1725
1705
1685
Clg SW2:
Maximum Clg Airflow
2
1920
1920
1945
1945
1945
1960
1950
1940
1915
1900
Heating
(SW1)
Maximum Heat Airflow
3
1340
1355
1370
1385
1380
1385
1400
1400
1385
1380
Intermediate Heat Airflow
3
780
810
835
840
845
See note 4
Minimum Heat Airflow
3
595
595
600
595
605
See note 4