39
B
LOWER
P
ERFORMANCE
D
ATA
GDH8 / ADSH8
Tons AC
at 0.5"
0.6
0.7
0.8
ESP
CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE CFM CFM CFM
HIGH
3.0
1353
----
1290
----
1246
----
1199
25
1149
26
1116 1116 1099
*D(H,S)(H)80403A***
MED 2.5
1183
25
1113
27
1098
27
1052
28
1039
29
1006 1012
969
(MEDIUM)
MED-LO
2.0
980
30
946
31
920
32
900
33
896
33
885
855
804
LOW
1.5
778
38
762
39
738
40
746
40
738
40
717
696
678
HIGH
3.0
1290
34
1236
36
1194
37
1166
38
1176
38
1166 1108 1029
*D(H,S)(H)80603A***
MED
2.5
1139
39
1090
41
1035
43
1063
42
1063
42
1020
962
895
(MEDIUM)
MED-LO
2.0
962
46
927
48
925
48
941
47
909
49
877
834
779
LOW
1.5
787
56
776
57
763
58
744
60
723
----
690
641
581
HIGH
4.0
2128
----
2063
----
2001
----
1927
----
1824
----
1726 1628 1529
*D(H,S)(H)80804B***
MED 3.5
1840
----
1788
----
1745
----
1689
35
1625
36
1550 1470 1364
(MEDIUM)
MED-LO
3.0
1602
37
1558
38
1543
38
1493
40
1455
41
1402 1328 1239
LOW
2.5
1277
46
1252
47
1244
48
1229
48
1214
49
1179 1141 1079
HIGH
5.0
2405
----
2361
----
2250
----
2161
-----
2037
36
1937 1808 1689
*D(H,S)(H)81005C***
MED 4.0
1880
39
1838
40
1794
41
1734
43
1677
44
1568 1510 1401
(MEDIUM)
MED-LO
3.5
1659
45
1630
45
1587
47
1537
48
1492
50
1445 1368 1287
LOW
3.0
1472
50
1454
51
1404
53
1366
54
1326
56
1300 1228 1139
Notes:
• Temperature rise data is based on 2nd-stage heat. First-stage heat is 75% of rise indicated above.
• CFM in chart is without filter(s). Filters do not ship with this furnace, but must be provided by the installer. If the furnace requires two
• All furnaces ship as high-speed cooling and medium-speed heating. Installer must adjust blower cooling and heating speed as needed.
• For most jobs, about 375 - 400 CFM per ton when cooling is desirable.
• INSTALLATION IS TO BE ADJUSTED TO OBTAIN TEMPERATURE RISE WITHIN THE RANGE SPECIFIED ON THE RATING PLATE.
• This chart is for information only. For satisfactory operation, external static pressure
should
not exceed value shown on the rating plate.
• A properly derated unit will have approximately the same temperature rise at a particular CFM, while ESP at the CFM will be lower.
(CFM & Temperature Rise vs. External Static Pressure)
Model
Heating Speed
As Shipped
Motor
Speed
EXTERNAL STATIC PRESSURE (Inches Water Column)
0.1
0.2
0.3
0.4
0.5
