Table of Contents
Advertisement
N92MSN: Installation, Start-up, Operating and Service and Maintenance Instructions
Airflow
Unit Size
Setting
1
2
3
4
5
6
7
8
9
1002122
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
1202420
10
11
12
13
14
15
16
17
18
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
Unit Size
0401412
0401712
0601412
0601714
0801716
0802120
1002120
1002122
1202420
*. Setting #1 is the default setting for Constant Fan
FURNACE CONTROL PROGRAMMING AND
NAVIGATION
On-Board Control Method
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 19 – Air Delivery - CFM (with filter) (Continued)
Default
Setting
0.1
0.2
Cont. Fan
675
565
855
770
950
870
1070
995
1145
1075
1240
1175
1330
1270
1435
1380
1535
1485
Heat
1645
1600
1735
1685
1835
1790
1930
1885
2045
2005
2160
2120
Cooling
2195
2155
2265
2225
2370
2335
Cont. Fan
770
665
830
725
915
815
990
895
1085
1000
1170
1095
1235
1160
1330
1260
1405
1335
1490
1425
1585
1525
1665
1605
1750
1700
1835
1785
Heat
1880
1830
1920
1875
1995
1945
Cooling
2115
2065
Table 20 – Airflow Settings
Default Airflow Settings
Heating
8
9
12
9
11
11
13
10
15
External Static Pressure (IN.W.C.)
0.3
0.4
0.5
0.6
465
375
295
200
675
595
515
440
785
705
630
555
920
845
770
700
1005
930
860
795
1115
1045
975
910
1210
1150
1085
1020
1325
1270
1210
1150
1430
1380
1325
1270
1550
1500
1450
1400
1640
1590
1550
1500
1745
1700
1655
1610
1845
1800
1755
1715
1965
1925
1880
1840
2080
2040
2000
1960
2120
2080
2040
2005
2185
2145
2110
2070
2295
2260
2220
2165
545
445
355
275
615
515
425
345
725
615
525
445
810
710
620
540
915
835
740
655
1010
935
855
765
1080
1005
935
850
1190
1115
1050
980
1270
1200
1135
1070
1365
1295
1235
1170
1470
1405
1340
1285
1550
1495
1435
1375
1645
1595
1535
1480
1740
1685
1630
1575
1780
1730
1680
1625
1825
1775
1730
1675
1900
1855
1810
1760
2020
1975
1930
1875
*
Cooling
Heating
18
18
18
18
17
18
18
16
18
(12-16)
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.
49
0.7
0.8
115
-
370
295
220
490
425
360
630
570
510
730
665
605
850
790
725
960
900
845
1095
1035
980
1215
1160
1105
1345
1295
1240
1450
1400
1350
1565
1520
1470
1670
1625
1585
1805
1760
1720
1920
1885
1845
1965
1930
1890
2035
2000
1960
2110
2050
1990
185
-
265
180
130
370
295
220
465
395
325
580
510
445
690
620
555
770
700
635
900
820
755
1000
920
850
1110
1040
965
1230
1170
1105
1320
1270
1210
1425
1375
1320
1525
1475
1430
1575
1530
1480
1625
1580
1535
1715
1670
1625
1815
1750
1690
Designated Airflow Settings
Const. Fan
(5-8)
(1-4)
(4-9)
(1-1)
(6-14)
(1-6)
(7-14)
(1-8)
(8-14)
(1-8)
(7-14)
(1-8)
(7-16)
(1-7)
(7-12)
(1-8)
(1-1)
CAUTION
!
0.9
1
-
-
150
285
455
550
670
785
925
1050
1190
1300
1420
1535
1675
1805
1850
1925
1935
-
-
-
165
255
380
490
570
695
790
900
1030
1145
1270
1385
1435
1490
1585
1630
Advertisement
Table of Contents
