N92MSN: Installation, Start-up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
49
NOTE:
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 a factory - authorized accessory filter rack. See
accessory list. To determine airflow performance without this filter, assume an additional 0.1 in. w.c. available external static pressure.
2.Adjust the blower airflow settings as necessary for the proper air temperature rise for each installation.
3.Airflows over 1800 CFM require bottom return, two-side return, or bottom and side return. A minimum filter size of 20” x 25” (508 x 635 mm) is required.
4.For upflow applications, air entering from one side into both the side of the furnace and a return air base counts as a side and bottom return
5..The -- entry indicates unstable operating conditions
FURNACE CONTROL PROGRAMMING AND
NAVIGATION
On-Board Control Method
1002122
1 Cont. Fan 675 565 465 375 295 200 115 - - -
2 855 770 675 595 515 440 370 295 220 150
3 950 870 785 705 630 555 490 425 360 285
4 1070 995 920 845 770 700 630 570 510 455
5 1145 1075 1005 930 860 795 730 665 605 550
6 1240 1175 1115 1045 975 910 850 790 725 670
7 1330 1270 1210 1150 1085 1020 960 900 845 785
8 1435 1380 1325 1270 1210 1150 1095 1035 980 925
9 1535 1485 1430 1380 1325 1270 1215 1160 1105 1050
10 Heat 1645 1600 1550 1500 1450 1400 1345 1295 1240 1190
11 1735 1685 1640 1590 1550 1500 1450 1400 1350 1300
12 1835 1790 1745 1700 1655 1610 1565 1520 1470 1420
13 1930 1885 1845 1800 1755 1715 1670 1625 1585 1535
14 2045 2005 1965 1925 1880 1840 1805 1760 1720 1675
15 2160 2120 2080 2040 2000 1960 1920 1885 1845 1805
16 Cooling 2195 2155 2120 2080 2040 2005 1965 1930 1890 1850
17 2265 2225 2185 2145 2110 2070 2035 2000 1960 1925
18 2370 2335 2295 2260 2220 2165 2110 2050 1990 1935
1202420
1 Cont. Fan 770 665 545 445 355 275 185 - - -
2 830 725 615 515 425 345 265 180 130 -
3 915 815 725 615 525 445 370 295 220 165
4 990 895 810 710 620 540 465 395 325 255
5 1085 1000 915 835 740 655 580 510 445 380
6 1170 1095 1010 935 855 765 690 620 555 490
7 1235 1160 1080 1005 935 850 770 700 635 570
8 1330 1260 1190 1115 1050 980 900 820 755 695
9 1405 1335 1270 1200 1135 1070 1000 920 850 790
10 1490 1425 1365 1295 1235 1170 1110 1040 965 900
11 1585 1525 1470 1405 1340 1285 1230 1170 1105 1030
12 1665 1605 1550 1495 1435 1375 1320 1270 1210 1145
13 1750 1700 1645 1595 1535 1480 1425 1375 1320 1270
14 1835 1785 1740 1685 1630 1575 1525 1475 1430 1385
15 Heat 1880 1830 1780 1730 1680 1625 1575 1530 1480 1435
16 1920 1875 1825 1775 1730 1675 1625 1580 1535 1490
17 1995 1945 1900 1855 1810 1760 1715 1670 1625 1585
18 Cooling 2115 2065 2020 1975 1930 1875 1815 1750 1690 1630
Table 19 – Air Delivery - CFM (with filter) (Continued)
Unit Size
Airflow
Setting
Default
Setting
External Static Pressure (IN.W.C.)
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Table 20 – Airflow Settings
Default Airflow Settings
*
*. Setting #1 is the default setting for Constant Fan
Designated Airflow Settings
Unit Size Heating Cooling Heating Const. Fan
0401412 8 18 (5-8) (1-4)
0401712 9 18 (4-9) (1-1)
0601412 12 18 (6-14) (1-6)
0601714 9 18 (7-14) (1-8)
0801716 11 17 (8-14) (1-8)
0802120 11 18 (7-14) (1-8)
1002120 13 18 (7-16) (1-7)
1002122 10 16 (7-12) (1-8)
1202420 15 18 (12-16) (1-1)
CAUTION
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury, or death.
Blower access door switch removes 115-V power to control. No
component operation can occur unless switch is closed. Caution must
be taken when manually closing this switch for service purposes.
Do not tape or permanently allow the door switch to be bypassed.
Temporarily depress the door switch with one hand while accessing the
service buttons with your other hand. Do not touch uninsulated
electrical components.
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