Installation Guide

36
-!8)-5-!)2&,/74%-0%2!452%2)3%3
0
&&/2
3#3%2)%350&,/7(/2):/.4!,&52.!#%3
-ODEL.UMBER
&
(EATING)NPUT
"TUH
Motor
3PEED
%XTERNAL3TATIC0RESSURE)NCHES7ATER#OLUMN
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise
SC108D-45D
Bottom only
or 2 openings
(108,000)
High
*
2,135 43 2,095 44 2,040 45 1,975 47 1,910 48 1,840 50 1,735 53 1,675 55
Med-High
**
2,000 46 1,955 47 1,900 48 1,845 50 1,800 51 1,735 53 1,665 55 1,570 59
Med-Low 1,665 55 1,660 55 1,625 57 1,590 58 1,530 60 1,500 61 1,415 65 1,340 69
Low 1,385 66 1,360 68 1,310 70 1,300 — 1,275 — 1,250 — 1,200 — 1,150 —
SC108D-45D
Side Return
(108,000)
High
*
2,115 43 2,075 44 2,020 46 1,955 47 1,890 49 1,822 50 1,720 53 1,660 55
Med-High
**
1,980 46 1,935 48 1,880 49 1,830 50 1,780 52 1,720 53 1,650 56 1,555 59
Med-Low 1,650 56 1,645 56 1,610 57 1,575 58 1,515 61 1,485 62 1,400 66 1,330 69
Low 1,370 67 1,345 68 1,300 — 1,290 — 1,260 — 1,240 — 1,190 — 1,140 —
SC120D-45D
Bottom only
or 2 openings
(120,000)
High
*
2,135 48 2,095 49 2,040 50 1,975 52 1,910 54 1,840 56 1,735 59 1,675 61
Med-High
**
2,000 51 1,955 52 1,900 54 1,845 55 1,800 57 1,735 59 1,665 61 1,570 65
Med-Low 1,665 61 1,660 62 1,625 63 1,590 64 1,530 67 1,500 68 1,415 — 1,340 —
Low 1,385 — 1,360 — 1,310 — 1,300 — 1,275 — 1,250 — 1,200 — 1,150 —
SC120D-45D
Side Return
(120,000)
High
*
2,115 48 2,075 49 2,020 51 1,955 52 1,890 54 1,822 56 1,720 59 1,660 62
Med-High
**
1,980 52 1,935 53 1,880 54 1,830 56 1,780 57 1,720 59 1,650 62 1,555 66
Med-Low 1,650 62 1,645 62 1,610 63 1,575 65 1,515 67 1,485 69 1,400 — 1,330 —
Low 1,370 — 1,345 — 1,300 — 1,290 — 1,260 — 1,240 — 1,190 — 1,140 —
NOTES:
* Factory Set Cooling Speed
** Factory Set Heating Speed
1. Two openings are recommended for airflows above 1,600 CFM if filter(s) is(are) adjacent to furnace
2. Temperature rises in the table are approximate. Actual temperature rises may vary.
3. Cells shaded in gray indicate a temperature rise outside of the recommended range.
4ABLE#ONTINUED
-!8)-5-!)2&,/74%-0%2!452%2)3%3
0
&&/2
*SL SERIES DOWNFLOW GAS FURNACES
-ODEL.UMBER
&
(EATING)NPUT
"TUH
Motor
3PEED
%XTERNAL3TATIC0RESSURE)NCHES7ATER#OLUMN
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise CFM Rise
SL054D-24B
54,000
HIGH
*
1,580 29 1,550 30 1,520 30 1,485 31 1,460 32 1,425 32 1,375 33 1,320 35
MED-HIGH 1,240 37 1,230 37 1,210 38 1,185 39 1,165 39 1,135 41 1,100 42 1,045 44
MED-LOW
**
1,145 40 1,120 41 1,100 42 1,080 43 1,055 44 1,030 45 985 47 940 49
LOW 895 51 870 53 850 54 825
— 800 — 770 — 740 — 715 —
SL072D-24B
72,000
HIGH
*
1,560 39 1,530 40 1,500 41 1,480 41 1,435 43 1,400 44 1,360 45 1,310 47
MED-HIGH**
1,245 49 1,225 50 1,205 51 1,180 52 1,150 53 1,125 55 1,090 56 1,045 59
MED-LOW 1,085 57 1,070 57 1,045 59 1,025 60 1,000
— 970 — 930 — 880 —
LOW 850 — 830 — 800 — 780 — 760 — 730 — 710 — 685 —
SL090D-35C
90,000
HIGH
*
1,955 39 1,905 40 1,835 42 1,795 43 1,730 44 1,620 47 1,545 50 1,450 53
MED-HIGH
**
1,845 42 1,790 43 1,750 44 1,680 46 1,515 51 1,540 50 1,475 52 1,410 54
MED-LOW 1,320 58 1,290 59 1,250 61 1,215 63 1,180 65 1,120
— 1,050 — 970 —
LOW 1,190 64 1,165 — 1,125 — 1,080 — 1,055 — 1,000 — 945 — 875 —
SL120D-45D
120,000
HIGH
*
2,215 46 2,150 48 2,075 49 2,035 50 1,970 52 1,905 54 1,800 57 1,745 59
MED-HIGH
**
2,050 50 2,015 51 1,955 52 1,900 54 1,860 55 1,795 57 1,720 59 1,620 63
MED-LOW 1,720 59 1,690 60 1,655 62 1,640 62 1,610 63 1,560
— 1,505 — 1,465 —
LOW 1,420 — 1,410 — 1,400 — 1,365 — 1,350 — 1,335 — 1,290 — 1,260 —
NOTES:
*
Factory Set Cooling Speed
**
Factory Set Heating Speed
1. Temperature rises in the table are approximate. Actual temperature rises may vary.
2. Cells shaded in gray indicate a temperature rise outside of the recommended range.
4ABLE*SL Downflow Furnaces