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935SB: Installation, Start-up, Operating and Service Maintenance Instructions
Unit Size
Airflow Setting Default Setting
1
2
3
4
5
6
7
8
9
60100M21
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
66100M21
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 setting 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
36040M17
48060M17
60080M21
60100M21
66100M21
*. Setting #1 is the default setting for Constant Fan
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 20 – Air Delivery - CFM (with filter) (Continued)
0.1
0.2
Const. Fan
655
560
725
640
805
725
885
810
965
900
1055
990
1145
1080
1235
1175
1325
1270
1415
1360
1505
1455
1600
1550
1690
1645
1780
1735
Heating
1865
1825
1970
1925
2055
2015
Cooling
2135
2100
Const. Fan
835
725
935
845
1000
920
1115
1040
1195
1125
1295
1230
1395
1335
1500
1445
1585
1530
1680
1630
1770
1725
Heating
1845
1800
1945
1905
1980
1940
2070
2030
Cooling
2190
2150
2300
2260
2430
2385
Table 21 – Airflow Settings
Default Airflow Settings
Heating
7
10
12
15
12
External Static Pressure (in.w.c.)
0.3
0.4
0.5
0.6
465
375
290
205
550
465
390
310
640
560
480
410
735
660
585
510
825
755
685
620
925
860
790
730
1020
960
895
835
1120
1060
1000
945
1215
1160
1105
1050
1310
1260
1210
1155
1405
1360
1310
1265
1505
1460
1415
1370
1600
1560
1515
1470
1695
1650
1610
1570
1785
1740
1700
1660
1885
1845
1805
1770
1980
1940
1900
1865
2060
2025
1985
1950
625
535
430
330
745
660
570
475
815
735
655
560
955
870
795
720
1050
960
890
815
1165
1080
1010
940
1275
1205
1125
1060
1390
1330
1265
1190
1475
1420
1365
1290
1580
1530
1475
1415
1675
1630
1580
1525
1755
1705
1660
1605
1860
1815
1770
1725
1900
1855
1810
1765
1990
1950
1910
1870
2110
2075
2035
1995
2225
2190
2155
2115
2345
2300
2255
2205
*
Cooling
Heating
18
(4-11)
18
(6-13)
18
(8-12)
18
(10-15)
16
(8-13)
45
0.7
0.8
0.9
125
-
-
230
155
-
340
265
195
445
380
310
550
490
425
660
600
535
775
715
650
885
830
770
995
940
890
1100
1050
1000
1215
1165
1115
1325
1275
1225
1425
1380
1335
1530
1485
1445
1620
1585
1540
1730
1690
1655
1825
1790
1755
1915
1880
1845
245
120
-
385
300
195
470
385
305
640
550
465
745
670
590
875
805
730
995
930
870
1125
1070
1010
1225
1170
1110
1345
1290
1235
1470
1400
1350
1555
1495
1440
1675
1630
1575
1720
1670
1620
1825
1780
1730
1955
1915
1870
2080
2045
2010
2160
2115
2060
Designated Airflow Settings
Const. Fan
(1-7)
(1-7)
(1-1)
(1-2)
(1-7)
1
-
-
135
245
360
480
595
710
835
950
1065
1180
1285
1400
1500
1615
1715
1810
-
-
210
395
510
655
800
955
1055
1180
1295
1390
1515
1565
1685
1830
1970
2010
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