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

Table 9C - - High- -Static Drive Data, 60 Hz — English
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
Max Allowable Speed (rpm)
1
Change per / Turn of
2
Moveable Motor Pulley
Flange
MAX FULL TURNS FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (in.)
†
It is possible to adjust drive so that fan speed exceeds maximum allowable. DO NOT exceed 1200 rpm.
Table 9D- - Standard Drive Data, 60 Hz — SI
UNIT
MOTOR DRIVE
Motor Pulley Pitch Diameter (mm)
Pulley Factory Setting
Full Turns Open
FAN DRIVE
Pulley Pitch Dia (mm)
Pulley Bore (mm)
Belt No. — Section
Belt Pitch (mm)
FAN SPEEDS (r/s)
Factory Setting
Range
Max Allowable Speed (r/s)
1
Change per / Turn of
2
Moveable Motor Pulley
Flange
MAX FULL TURNS FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (mm)
†
Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.
524J*25A
524J*28A
524J*25H
4.3--- 5.3 4.3--- 5.3
3.0 3.0
7.4 8.6
7 15
1 / 1 /
16 16
2—B 2—B
36.8 378
1118 1024
1014--- 1200Ă 873--- 1075
†
1200 1100
19.4 16.7
6 6
8.16--- 10.02 6.67--- 9.43
524J*25A
524J*28A
524J*25H
94.0--- 119.4 109.2--- 134.6
3.0 3.0
239 279
36.5 49.2
2—B 2—B
†
(2) 1987
1062
(2) 1113
12.9 12.5
11.3--- 14.4 11.4--- 14.0
20.0 18.3
0.255 0.218
6 6
232--- 279 169--- 240
26
524J*30A
4.3--- 5.3
3.0
8.6
15
1 /
16
2—B
37.8
1024
873--- 1075
1100
16.7
6
6.67--- 9.43
524J*30A
109.2--- 134.6
3.0
279
49.2
2—B
†
(2) 1987
(2) 1113
12.5
11.2--- 13.9
18.3
0.218
6
169--- 240