Carrier R-410A manual A - Standard Drive Data, 60 Hz - English

Table 9A — Standard Drive Data, 60 Hz — English

UNIT	40RUA*25	40RUA*28	40RUA*30
	40RUS*25	40RUS*28	40RUS*30
MOTOR DRIVE
Motor Pulley Pitch Diameter (in.)	3.7-4.7	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.)	9.4	11.0	11.0
Pulley Bore (in.)	17/16	115/16	115/16
Belt No. — Section	2—B	2—B†	2—B†
Belt Pitch (in.)	41.8	(2) 42.8	(2) 42.8
		(2) 43.8	(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	15.3	13.1	13.1
Moveable Motor Pulley
Flange
MAX FULL TURNS FROM	6	6	6
CLOSED POSITION
SHAFTS CENTER DISTANCE (in.)	9.12-	6.67-	6.67-
	10.99	9.43	9.43

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

Table 9B — Medium-Static Drive Data, 60 Hz — English

UNIT	40RUA*25	40RUA*28	40RUA*30
	40RUS*25	40RUS*28	40RUS*30
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.)	9.4	9.4	9.4
Pulley Bore (in.)	17/16	115/16	115/16
Belt No. — Section	1—B	2—B†	2—B†
Belt Pitch (in.)	41.8	(2) 38.8	(2) 38.8
		(2) 39.8	(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	15.3	15.3	15.3
Moveable Motor Pulley
Flange
MAX FULL TURNS FROM	6	6	6
CLOSED POSITION
SHAFTS CENTER DISTANCE (in.)	9.16-	6.67-	6.67-
	10.99	9.43	9.43

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

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