Bryant 524J manual C - High-StaticDrive Data, 60 Hz - English, D- Standard Drive Data, 60 Hz - SI

524J

Table 9C - High-Static Drive Data, 60 Hz — English

UNIT	524J*25A	524J*28A	524J*30A
	524J*25H
MOTOR DRIVE
Motor Pulley Pitch Diameter (in.)	4.3--- 5.3	4.3--- 5.3	4.3--- 5.3
Pulley Factory Setting	3.0	3.0	3.0
Full Turns Open
FAN DRIVE
Pulley Pitch Dia (in.)	7.4	8.6	8.6
Pulley Bore (in.)	17/16	115/16	115/16
Belt No. — Section	2—B	2—B	2—B
Belt Pitch (in.)	36.8	378	37.8
FAN SPEEDS (rpm)
Factory Setting	1118	1024	1024
Range	1014--- 1200Æ	873--- 1075	873--- 1075
Max Allowable Speed (rpm)	1200	1100	1100
Change per 1/ Turn of
2	19.4	16.7	16.7
Moveable Motor Pulley
Flange
MAX FULL TURNS FROM	6	6	6
CLOSED POSITION
SHAFTS CENTER DISTANCE (in.)	8.16--- 10.02	6.67--- 9.43	6.67--- 9.43

†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	524J*25A	524J*28A	524J*30A
	524J*25H
MOTOR DRIVE
Motor Pulley Pitch Diameter (mm)	94.0--- 119.4	109.2--- 134.6	109.2--- 134.6
Pulley Factory Setting	3.0	3.0	3.0
Full Turns Open
FAN DRIVE
Pulley Pitch Dia (mm)	239	279	279
Pulley Bore (mm)	36.5	49.2	49.2
Belt No. — Section	2—B	2—B†	2—B†
Belt Pitch (mm)	1062	(2) 1987	(2) 1987
		(2) 1113	(2) 1113
FAN SPEEDS (r/s)
Factory Setting	12.9	12.5	12.5
Range	11.3--- 14.4	11.4--- 14.0	11.2--- 13.9
Max Allowable Speed (r/s)	20.0	18.3	18.3
Change per 1/ Turn of
2	0.255	0.218	0.218
Moveable Motor Pulley
Flange
MAX FULL TURNS FROM	6	6	6
CLOSED POSITION
SHAFTS CENTER DISTANCE (mm)	232--- 279	169--- 240	169--- 240

†Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.

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