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Carrier REFRIGERANT R-410A User Manual

Page 27

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27

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

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

UNIT

40RUA*25
40RUS*25

40RUA*28
40RUS*28

40RUA*30
40RUS*30

MOTOR DRIVE

Motor Pulley Pitch Diameter (in.)

3.7-4.7

4.3-5.3

4.3-5.3

Pulley Factory Setting
Full Turns Open

3.0

3.0

3.0

FAN DRIVE

Pulley Pitch Dia (in.)

9.4

11.0

11.0

Pulley Bore (in.)

1

7

/

16

1

15

/

16

1

15

/

16

Belt No. — Section

2—B

2—B

2—B

Belt Pitch (in.)

41.8

(2) 42.8
(2) 43.8

(2) 42.8
(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

Moveable Motor Pulley
Flange

15.3

13.1

13.1

MAX FULL TURNS FROM
CLOSED POSITION

6

6

6

SHAFTS CENTER DISTANCE (in.)

9.12-
10.99

6.67-
9.43

6.67-
9.43

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

UNIT

40RUA*25
40RUS*25

40RUA*28
40RUS*28

40RUA*30
40RUS*30

MOTOR DRIVE

Motor Pulley Pitch Diameter (in.)

4.3-5.3

4.3-5.3

4.3-5.3

Pulley Factory Setting
Full Turns Open

3.0

3.0

3.0

FAN DRIVE

Pulley Pitch Dia (in.)

9.4

9.4

9.4

Pulley Bore (in.)

1

7

/

16

1

15

/

16

1

15

/

16

Belt No. — Section

1—B

2—B

2—B

Belt Pitch (in.)

41.8

(2) 38.8
(2) 39.8

(2) 38.8
(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

Moveable Motor Pulley
Flange

15.3

15.3

15.3

MAX FULL TURNS FROM
CLOSED POSITION

6

6

6

SHAFTS CENTER DISTANCE (in.)

9.16-
10.99

6.67-
9.43

6.67-
9.43

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