Bryant 524J Series Installation, Start-Up And Service Instructions Manual page 26

UNIT
MOTOR DRIVE
Motor Pulley Pitch Diameter (in.)
Pulley Factory Setting
Full Turns Open
FAN DRIVE
Pulley Pitch Dia (in.)
Pulley Bore (in.)
Belt No. — Section
Belt Pitch (in.)
FAN SPEEDS (rpm)
Factory Setting
Range
Maximum Allowable Speed
(rpm)
Change Per 1/2 Turn of
Moveable Motor Pulley
Flange
MAXIMUM FULL TURN FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (In.)
NOTE(S):
a. Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.
UNIT
MOTOR DRIVE
Motor Pulley Pitch Diameter (in.)
Pulley Factory Setting
Full Turns Open
FAN DRIVE
Pulley Pitch Dia (in.)
Pulley Bore (in.)
Belt No. — Section
Belt Pitch (in.)
FAN SPEEDS (rpm)
Factory Setting
Range
Maximum Allowable Speed
(rpm)
Change Per 1/2 Turn of
Moveable Motor Pulley
Flange
MAXIMUM FULL TURN FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (In.)
NOTE(S):
a. Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.
Table 15 — Standard Drive Data, 60 Hz — English
524J*25A
524J*25H
3.7-4.7
3.0
9.4
1-7/16
2 — B
41.8
771
679-863
1200
15.3
6
9.12-10.99
Table 16 — Medium-Static Drive Data, 60 Hz — English
524J*25A
524J*25H
4.3-5.3
3.0
9.4
1-7/16
1 — B
41.8
881
798-984
1200
15.3
6
9.12-10.99
524J*28A
4.3-5.3
3.0
11.0
1-15/16
2 — B
a
(2) 42.8
(2) 43.8
752
682-841
1100
13.1
6
6.67-9.43
524J*28A
4.3-5.3
3.0
9.4
1-15/16
2 — B
a
2) 38.8
(2) 39.8
881
798-984
1100
15.3
6
6.67-9.43
26
524J*30A
4.3-5.3
3.0
11.0
1-15/16
2 — B
a
(2) 42.8
(2) 43.8
752
674-831
1100
13.1
6
6.67-9.43
524J*30A
4.3-5.3
3.0
9.4
1-15/16
2 — B
a
2) 38.8
(2) 39.8
881
798-984
1100
15.3
6
6.67-9.43