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FAN PERFORMANCES AT VARYING STATIC PRESSURES
Table 18 — Static Pressure at the Rated Point and Static Pressure Range
AHU
FAN COIL BLOWER PERFORMANCE CFM (DRY COIL WITHOUT FILTER OR ELECTRIC HEAT)
Model
Static
Speed
Number
Pressure
High
SP1
Medium
Low
High
SP2
Medium
Low
24
High
SP3
Medium
Low
High
SP4
Medium
Low
High
SP1
Medium
Low
High
SP2
Medium
Low
36
High
SP3
Medium
Low
High
SP4
Medium
Low
High
SP1
Medium
Low
High
SP2
Medium
Low
48
High
SP3
Medium
Low
High
SP4
Medium
Low
>300CFM
<450CFM
NOTES:
1. Airflow based upon dry coil at 230v without filter or electric heater.
2. To avoid potential for condensate blowing out of drain pan prior to making drain trap:
Return static pressure must be less than 0.40 in wc.
Horizontal applications of 48 size must have supply static greater than 0.20 in wc.
3. Airflow above 400 cfm/ton could result in condensate blowing off coil or splashing out of drain pan.
22
EXTERNAL STATIC PRESSURE (in.w.c.)
0
0.1
0.2
1,076
975
853
942
822
658
797
648
437
1,250
1,175
1,075
1,185
1,095
996
1,100
1,005
892
1,490
1,415
1,334
1,375
1,294
1,206
1,285
1,200
1,105
1,825
1,756
1,670
1,630
1,556
1,480
1,525
1,450
1,372
1,335
1,270
1,165
1,185
1,100
990
1,020
915
775
1,475
1,405
1,320
1,340
1,260
1,172
1,205
1,115
1,011
1,648
1,585
1,515
1,510
1,440
1,362
1,385
1,305
1,215
1,815
1,733
1,663
1,668
1,606
1,539
1,558
1,481
1,406
1,611
1,530
1,462
1,498
1,417
1,333
1,375
1,297
1,212
1,774
1,701
1,642
1,662
1,595
1,531
1,558
1,481
1,406
1,868
1,805
1,736
1,781
1,709
1,649
1,662
1,595
1,531
2,024
1,974
1,919
1,942
1,872
1,818
1,825
1,770
1,708
Specifications subject to change without notice.
0.3
0.4
0.5
675
502
200
465
184
/
100
/
/
965
815
650
855
685
512
712
558
322
1,250
1,156
1,028
1,100
988
822
995
845
685
1,592
1,515
1,450
1,400
1,310
1,215
1,280
1,190
1,074
1,062
950
810
845
685
520
600
405
/
1,230
1,125
990
1,055
920
775
870
715
555
1,440
1,354
1,235
1,275
1,168
1,040
1,115
986
855
1,605
1,528
1,435
1,465
1,380
1,275
1,350
1,219
1,100
1,375
1,276
1,170
1,225
1,125
998
1,110
994
860
1,570
1,504
1,420
1,460
1,366
1,275
1,323
1,220
1,110
1,675
1,604
1,532
1,582
1,511
1,420
1,460
1,366
1,275
1,850
1,795
1,726
1,765
1,697
1,620
1,648
1,578
1,492
0.6
0.7
0.8
/
/
/
/
/
/
/
/
/
475
200
/
291
/
/
/
/
/
880
750
600
676
500
284
525
252
/
1,360
1,250
1,120
1,105
950
825
935
785
650
645
450
240
335
/
/
/
/
/
855
715
570
630
460
275
380
/
/
1,125
990
875
910
780
645
727
580
421
1,346
1,235
1,130
1,178
1,050
941
986
875
748
1,052
925
831
900
775
631
716
558
389
1,313
1,202
1,081
1,161
1,040
915
986
880
748
1,433
1,330
1,211
1,308
1,208
1,081
1,161
1,040
915
1,652
1,560
1,466
1,534
1,455
1,345
1,400
1,295
1,180
IM-40MBAA-02
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