25
Table 9A -- Standard Drive Data, 60 Hz — English
UNIT
524J*25A
524J*25H
524J*28A
524J*30A
MOTOR DRIVE
Motor Pulley Pitch Diameter (in.)
3.7---4.7
4.3---5.3
4.3---5.3
Pulley Factory Setting
Full Turns Open
3.0
3.0
3.0
FAN DRIVE
Pulley Pitch Dia (in.)
9.4
11.0
11.0
Pulley Bore (in.)
1
7
/
16
1
15
/
16
1
15
/
16
Belt No. — Section
2—B
2—B
†
2—B
†
Belt Pitch (in.)
41.8
(2) 42.8
(2) 43.8
(2) 42.8
(2) 43.8
FAN SPEEDS (rpm)
Factory Setting
771
752
752
Range
679---863
682---841
674---831
Max Allowable Speed (rpm)
1200
1100
1100
Change per
1
/
2
Turn of
Moveable Motor Pulley
Flange
15.3
13.1
13.1
MAX FULL TURNS FROM
CLOSED POSITION
6
6
6
SHAFTS CENTER DISTANCE (in.)
9.12---10.99
6.67---9.43
6.67---9.43
†
Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.
Table 9B -- Medium--Static Drive Data, 60 Hz — English
UNIT
524J*25A
524J*25H
524J*28A
524J*30A
MOTOR DRIVE
Motor Pulley Pitch Diameter (in.)
4.3---5.3
4.3---5.3
4.3---5.3
Pulley Factory Setting
Full Turns Open
3.0
3.0
3.0
FAN DRIVE
Pulley Pitch Dia (in.)
9.4
9.4
9.4
Pulley Bore (in.)
1
7
/
16
1
15
/
16
1
15
/
16
Belt No. — Section
1—B
2—B
†
2—B
†
Belt Pitch (in.)
41.8
(2) 38.8
(2) 39.8
(2) 38.8
(2) 39.8
FAN SPEEDS (rpm)
Factory Setting
881
881
881
Range
798---984
798---984
798---984
Max Allowable Speed (rpm)
1200
1100
1100
Change per
1
/
2
Turn of
Moveable Motor Pulley
Flange
15.3
15.3
15.3
MAX FULL TURNS FROM
CLOSED POSITION
6
6
6
SHAFTS CENTER DISTANCE (in.)
9.16---10.99
6.67---9.43
6.67---9.43
†
Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.
524J
Содержание 524J Series
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