Specifications

Page 14
TABLE 3
GCS24-1353 BLOWER PERFORMANCE
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
.20 .30 .40 .50 .60 .70 .80 1.00 1.10 1.30.90
STATIC PRESSURE EXTERNAL TO UNIT  (INCHES WATER GAUGE)
5000
3600
3800
4000
4200
4400
4600
4800
5200



640
670
695
720
745
770
800


1.20
1.35
1.50
1.70
1.95
2.15
2.40
655
680
704
725
755
780
800
830
1.15
1.30
1.45
1.65
1.85
2.05
2.30
2.60
670
690
715
736
760
785
805
830
860
1.15
1.27
1.45
1.50
1.80
2.00
2.20
2.45
2.75
705
725
745
770
790
815
835
860
885
1.25
1.40
1.55
1.75
1.95
2.15
2.35
2.65
2.90
740
760
780
800
820
845
865
885
915
1.35
1.50
1.65
1.85
2.05
2.30
2.40
2.75
2.90
770
790
810
830
850
870
890
915
940
1.45
1.65
1.80
2.00
2.30
2.45
2.65
2.90
3.20
800
820
840
855
880
900
920
940

1.60
1.80
1.95
2.15
2.35
2.60
2.80
3.05

830
850
865
885
905
940

1.75
1.95
2.10
2.30
2.50
2.95

860
880
895
915
930

1.85
2.05
2.25
2.45
2.65

885
905
920
940


2.00
2.20
2.40
2.55







925 2.70 950 2.85
955 2.75

965 3.24
970 3.09
990 3.45
974 3.00
940
950
970
985
1005
1020
2.30
2.46
2.65
2.85
3.10
3.30
995 3.25
TABLE 4
GCS24-1603 BLOWER PERFORMANCE
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
.20 .30 .40 .50 .60 .70 .80 1.00 1.10 1.30.90
STATIC PRESSURE EXTERNAL TO UNIT  (INCHES WATER GAUGE)
5600
4200
4400
4600
4800
5000
5200
5400
5800


710
735
760
790
815
840
865
895

1.60
1.80
2.00
2.25
2.50
2.79
3.08
3.38
715
740
765
790
815
845
870
895

1.55
1.70
1.80
2.15
2.35
2.65
2.95
3.25

750
770
795
820
845
870
895
920

1.65
1.85
2.15
2.25
2.55
2.80
3.05
3.40

780
805
825
850
875
900
920


1.75
2.00
2.15
2.45
2.70
2.95
3.25


810
830
855
875
900
920
950


1.90
2.10
2.35
2.55
2.80
3.10
3.40


840
860
880
905
925
950



2.05
2.25
2.45
2.70
2.95
3.25



870
890
910
930
950
975



2.15
2.40
2.60
2.85
3.10
3.40



900
915
935
955
975



2.30
2.50
2.75
3.00
3.25



930
945
960
980
1000



2.45
2.65
2.90
3.25
3.40



955
970
990
1010



2.60
2.85
3.05
3.35



1010
1025
1040


2.90
3.10
3.40




 
 

C-Blower Belt Adjustment
Proper pulley alignment and belt tension must be main
tained for maximum belt life.
NOTE-Tension new belt after 24-48 hours of operation.
This will allow belts to stretch and seat in grooves. To in
crease belt tension, loosen two locking bolts and pull
mounting plate. Tighten motor mounting plate in vertical
position.
Adjusting Unit CFM:
The CFM can be changed by using the following procedure:
1- Remove the blower belt.
2- Loosen the set screws on motor pulley and remove key
as shown in figure 10.
3- Turn pulley clockwise to increase CFM and counterclock
wise to decrease CFM. One half turn changes blower
speed approximately 20 RPM.
NOTE-The pulley is factory set at three turns open.
4- Replace the key and tighten the set screw. Replace and
tighten the blower belt.
FIGURE 10
BLOWER SPEED ADJUSTMENT
BLOWER PULLEY
MOTOR PULLEY
SET SCREW
KEY
BLOWER
TO INCREASE CFM
TURN PULLEY CLOCK
WISE
TO DECREASE CFM
TURN PULLEY
COUNTERCLOCK
WISE
TO INCREASE BELT TENSION
1 - Loosen 2 locking bolts.
2 - Pull motor mounting plate.
3 - Tighten motor mounting
plate so plate is vertical.
MOTOR
MOUNTING PLATE
MEASURE
RPM
HERE
VIII-MAINTENANCE
CAUTION
Electrical shock hazard. Turn off power to unit be
fore performing any maintenance, cleaning or
service operation on the unit.