035-17311-002-A-0803
Unitary Products Group
25
TABLE 17: 7-1/2 TON STANDARD MOTOR DOWN SHOT BLOWER PERFORMANCE
*
†
ESP
‡
TURNS OPEN
**
0
1
2
3
4
5
CFM
W
††
BHP
CFM
W
††
BHP
CFM
W
††
BHP
CFM
W
††
BHP
CFM
W
††
BHP
CFM
W
††
BHP
0.2
-
-
-
3715
1573
1.69
3634
1434
1.54
3431
1265
1.36
3218
901
0.97
3024
976
1.05
0.4
3650
1657
1.78
3510
1490
1.60
3320
1313
1.41
3079
1145
1.23
2832
810
0.87
2586
860
0.92
0.6
3334
1522
1.63
3146
1351
1.45
2910
1169
1.25
2621
1005
1.08
2307
706
0.76
-
-
-
0.8
2903
1352
1.45
2622
1167
1.25
2404
1013
1.09
2054
858
0.92
-
-
-
-
-
-
1.0
2356
1159
1.24
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
*.
Blower performance for gas heat includes maximum number of heat tubes available for each tonnage.
†.
Blower performance includes two-inch throwaway filters.
‡.
ESP (External Static Pressure) given is that available for the supply and return air duct system. All internal resistances have been
deducted from the total static pressure of the blower.
**.
“Turns Open” refers to the setting of the variable pitch motor sheave, where “0 Turns Open” is fully closed.
††.
W = Watts
TABLE 18: 7-1/2 TON OPTIONAL MOTOR DOWN SHOT BLOWER PERFORMANCE
*
†
ESP
‡
TURNS OPEN
**
0
1
2
3
4
5
CFM
W
††
BHP
CFM
W
††
BHP
CFM
W
††
BHP
CFM
W
††
BHP
CFM
W
††
BHP
CFM
W
††
BHP
0.2
-
-
-
-
-
-
-
-
-
-
-
-
3992
1904
2.04
3798
1679
1.80
0.4
-
-
-
-
-
-
-
-
-
3930
2017
2.16
3734
1786
1.92
3486
1552
1.66
0.6
-
-
-
-
-
-
3947
2176
2.33
3670
1895
2.03
3394
1641
1.76
3084
1401
1.50
0.8
-
-
-
4138
2384
2.56
3623
2009
2.15
3323
1742
1.87
2971
1477
1.58
2591
1236
1.33
1.0
4126
2430
2.61
3643
2145
2.30
3224
1820
1.95
2889
1569
1.68
2466
1306
1.40
-
-
-
1.2
3613
2238
2.40
3143
1921
2.06
2748
1621
1.74
2369
1385
1.49
-
-
-
-
-
-
1.4
3099
2039
2.19
2636
1714
1.84
2195
1424
1.53
-
-
-
-
-
-
-
-
-
1.6
2586
1833
1.97
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
*.
Blower performance for gas heat includes maximum number of heat tubes available for each tonnage.
†.
Blower performance includes two-inch throwaway filters.
‡.
ESP (External Static Pressure) given is that available for the supply and return air duct system. All internal resistances have been
deducted from the total static pressure of the blower.
**.
“Turns Open” refers to the setting of the variable pitch motor sheave, where “0 Turns Open” is fully closed.
††.
W = Watts