SET
SCREW
TORQUE ALL SHEAVE SET SCREWS TO 110-130 in. lbs
TABLE 1
BELT
SMALLEST
CROSS
SHEAVE
SECTION
DIAMETER
3.0-3.6
A, AX
3.8-4.8
5.0-7.0
3.4-4.2
B, BX
4.4-5.6
5.8-8.6
TABLE 2
BELT CONDITION
New
Used
Fig. 73 — V-Belt Force Label
© 2020 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480254-01
Downloaded from
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BELT DEFLECTION FORCE - SEE TABLE 1
DEFLECTION = BELT SPAN
BELT DEFLECTION FORCE (LBS)
UNNOTCHED
NOTCHED BELTS
BELTS
USED
NEW
USED
3.7
5.5
4.1
4.5
6.8
5.0
5.4
8.0
5.7
—
—
4.9
5.3
7.9
7.1
6.3
9.4
8.5
TENSION FORCE IN BELT (LBS)
100
80
Printed in U.S.A.
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BELT TENSION METHOD
Requires belt tension gage that measures tension in belt in units of
lbs force.
64
STRAIGHT
EDGE
SET
SCREW
NEW
MOUNTING
6.1
BOLTS (4)
7.4
8.4
7.2
Fig. 74 — Belt Drive Motor Mounting
10.5
Pre-Start and Start-Up
12.6
This completes the mechanical installation of the unit. Refer to the
unit's Service Manual for detailed Pre-Start and Start-Up instruc-
tions. Download the latest versions from HVAC Partners
(www.hvacpartners.com).
Form 48HC-4-6-03SI
BLOWER PULLEY
V-BELT
MOTOR MOUNTING
Pg 54
1-2020
Replaces: 48HC-4-6-02SI
MOTOR
PULLEY
MOTOR
PLATE