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F96CTN and G96CTN (Series A): Installation, Start-up, Operating, Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
53
1.Nominal 350 CFM/ton cooling airflow is delivered with SW1-5 and SW4-3 set to OFF.
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).
This applies to Cooling and Low-Cooling airflows, but does not affect continuous fan airflows.
2.The above adjustments in airflow are subject to motor horsepower range/capacity
3.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.
4.All heating CFM's are when comfort/efficiency adjustment switch (SW1-4) is set to OFF.
5.Ductwork must be sized for high-heating CFM within the operational range of ESP. Operation within the blank areas of the chart is not recommended because high-heat operation will be
above 1.0 ESP.
6.All airflows on 21" (533 mm) casing size furnaces are 5% less on side return only installations.
(SW1-5 and SW4-3 set to OFF, except as indicated. See notes 1 and 2.)
Unit size:
1002122
Clg/CF Switch settings
External Static Pressure (ESP)
Clg Switches
SW2-3
SW2-2
SW2-1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Clg Default:
OFF
OFF
OFF
1820
1825
1840
1845
1840
1835
1825
1805
1780
1770
CF Switches
SW3-3
SW3-2
SW3-1
Low Clg Default:
OFF
OFF
OFF
750
740
745
730
715
See note 4
Cooling Airflow (SW2)
Low Cooling Airflow (SW3)
OFF
OFF
ON
750
740
745
730
715
See note 4
OFF
ON
OFF
900
900
915
910
905
See note 4
OFF
ON
ON
1070
1075
1095
1095
1090
1085
1095
1080
1065
1070
ON
OFF
OFF
1280
1285
1305
1305
1310
1305
1295
1300
1290
1285
ON
OFF
ON
1440
1445
1465
1465
1470
1485
1480
1485
1475
1460
ON
ON
OFF
1820
1825
1840
1845
1840
1835
1825
1805
1780
1770
ON
ON
ON
2135
2140
2140
2135
2140
2130
2115
2100
2070
2015
Maximum Clg Airflow
2
2160
2165
2175
2170
2160
2150
2135
2120
2065
2020
CF Switches
SW3-3
SW3-2
SW3-1
Cont. Fan Default:
OFF
OFF
OFF
750
740
745
730
715
See note 4
Continuous Fan Airflow (SW3)
OFF
OFF
ON
750
740
745
730
715
See note 4
OFF
ON
OFF
900
900
915
910
905
See note 4
OFF
ON
ON
1070
1075
1095
1095
1090
1085
1095
1080
1065
1070
ON
OFF
OFF
1070
1075
1095
1095
1090
1085
1095
1080
1065
1070
ON
OFF
ON
1070
1075
1095
1095
1090
1085
1095
1080
1065
1070
ON
ON
OFF
1070
1075
1095
1095
1090
1085
1095
1080
1065
1070
ON
ON
ON
1070
1075
1095
1095
1090
1085
1095
1080
1065
1070
Heating (SW1)
High Heat Airflow
3
1570
1575
1595
1595
1600
1605
1600
1600
1590
1575
Low Heat Airflow
3
1365
1385
1395
1395
1395
1400
1400
1405
1395
1380
Unit size:
1202422
Clg/CF Switch settings
External Static Pressure (ESP)
Clg Switches
SW2-3
SW2-2
SW2-1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Clg Default:
OFF
OFF
OFF
1845
1840
1835
1835
1825
1820
1810
1800
1785
1775
CF Switches
SW3-3
SW3-2
SW3-1
Low Clg Default:
OFF
OFF
OFF
895
915
915
915
915
See note 4
Cooling Airflow (SW2)
Low Cooling Airflow (SW3)
OFF
OFF
ON
715
725
720
710
705
See note 4
OFF
ON
OFF
895
915
915
915
915
See note 4
OFF
ON
ON
1070
1090
1105
1115
1115
1110
1115
1120
1120
1110
ON
OFF
OFF
1240
1265
1280
1295
1295
1305
1305
1305
1315
1315
ON
OFF
ON
1520
1520
1515
1505
1495
1490
1480
1465
1455
1445
ON
ON
OFF
1845
1840
1835
1835
1825
1820
1810
1800
1785
1775
ON
ON
ON
2150
2145
2140
2145
2135
2130
2115
2100
2065
1985
Maximum Clg Airflow
2
2150
2145
2140
2145
2135
2130
2115
2100
2065
1985
CF Switches
SW3-3
SW3-2
SW3-1
Cont. Fan Default:
OFF
OFF
OFF
895
915
915
915
915
See note 4
Continuous Fan Airflow (SW3)
OFF
OFF
ON
715
725
720
710
705
See note 4
OFF
ON
OFF
805
820
815
810
810
See note 4
OFF
ON
ON
895
915
915
915
915
See note 4
ON
OFF
OFF
895
915
915
915
915
See note 4
ON
OFF
ON
895
915
915
915
915
See note 4
ON
ON
OFF
895
915
915
915
915
See note 4
ON
ON
ON
895
915
915
915
915
See note 4
Heating (SW1)
High Heat Airflow
3
1825
1820
1815
1800
1800
1795
1785
1775
1760
1745
Low Heat Airflow
3
1555
1555
1550
1550
1545
1525
1520
1505
1495
1485
Table 17 – Cooling
4
and Heating Air Delivery - CFM (Bottom Return
5
with Filter) (Continued)