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.
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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)
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