Bryant Air Handling Units 524J - Manual (Page 26)

26
Table 9A — Standard Drive Data, 60 Hz — English
Table 9B — Medium-Static Drive Data, 60 Hz — English
UNIT
524J*07A
524J*07H
524J*08A
524J*08H
524J*12A
524J*12H
524J*14A 524J*16A
MOTOR DRIVE
Motor Pulley Pitch Diameter (in.) 2.4-3.4 2.8-3.8 3.4-4.4 2.8-3.8 2.8-3.8
Pulley Factory Setting
Full Turns Open
2.5 2.5 2.5 2.5 2.5
FAN DRIVE
Pulley Pitch Dia (in.) 8.8 8.8 8.8 9.0 9.0
Pulley Bore (in.) 1 1 1 1 7 /
16
1 7 /
16
Belt No. — Section 1—A 1—A 1—A 1—A 1—A
Belt Pitch (in.) 40.3 41.3 42.3 42.3 42.3
FAN SPEEDS (rpm)
Factory Setting 568 647 764 632 632
Range 470-666 549-745 666-863 537-728 537-728
Max Allowable Speed (rpm) 1200 1200 1200 1200 1200
Change per 1 /
2
Turn of
Moveable Motor Pulley
Flange
19.6 19.6 19.7 19.1 19.1
MAX FULL TURNS FROM
CLOSED POSITION
5 5 5 5 5
SHAFTS CENTER DISTANCE (in.)
10.44-
12.32
10.44-
12.32
10.44-
12.32
10.44-
12.32
10.44-
12.32
UNIT
524J*07A
524J*07H
524J*08A
524J*08H
524J*12A
524J*12H
524J*14A 524J*16A
MOTOR DRIVE
Motor Pulley Pitch Diameter (in.) 3.4-4.4 3.4-4.4 3.4-4.4 3.4-4.4 3.7-4.7
Pulley Factory Setting
Full Turns Open
2.5 2.5 2.5 2.5 3.0
FAN DRIVE
Pulley Pitch Dia (in.) 8.8 8.0 8.0 8.2 8.6
Pulley Bore (in.) 1 1 1 1 7 /
16
1 7 /
16
Belt No. — Section 1—A 1—A 1—A 1—A 1—B
Belt Pitch (in.) 42.3 40.3 40.3 41.3 41.8
FAN SPEEDS (rpm)
Factory Setting 764 841 841 820 842
Range 666-863 733-949 733-949 715-926 742-943
Max Allowable Speed (rpm) 1200 1200 1200 1200 1200
Change per 1 /
2
Turn of
Moveable Motor Pulley
Flange
19.7 21.6 21.6 21.1 16.7
MAX FULL TURNS FROM
CLOSED POSITION
5 5 5 5 6
SHAFTS CENTER DISTANCE (in.)
10.44-
12.32
10.44-
12.32
10.44-
12.32
10.44-
12.32
10.44-
12.32