Carrier REFRIGERANT R-410A - Manual (Page 28)

28
Table 9C — High-Static Drive Data, 60 Hz — English
Table 9D — Standard Drive Data, 60 Hz — SI
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.) 7.4 8.6 8.6
Pulley Bore (in.) 1 7 /
16
1 15 /
16
1 15 /
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-
1200 †
873-
1075
873-
1075
Max Allowable Speed (rpm) 1200 1100 1100
Change per 1 /
2
Turn of
Moveable Motor Pulley
Flange 19.4 16.7 16.7
MAX FULL TURNS FROM
CLOSED POSITION
6 6 6
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.
UNIT
40RUA*25
40RUS*25 40RUA*28
40RUS*28 40RUA*30
40RUS*30
MOTOR DRIVE
Motor Pulley Pitch Diameter (mm)
94.0-
119.4 109.2-
134.6 109.2-
134.6
Pulley Factory Setting
Full Turns Open
3.0 3.0 3.0
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) 1113
(2) 1987
(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 /
2
Turn of
Moveable Motor Pulley
Flange 0.255 0.218 0.218
MAX FULL TURNS FROM
CLOSED POSITION
6 6 6
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 pully setting.