Belt Tension Method; Pre-Start And Start-Up - Bryant Preferred Series Installation Instructions Manual

BELT DEFLECTION FORCE (LBS)
BELT SMALLEST
CROSS SHEAVE
SECTION DIAMETER
USED
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 1
BELT CONDITION TENSION FORCE IN BELT (LBS)
New
Used
Table 2
Fig. 55 — V-Belt Force Label
UNNOTCHED NOTCHED
BELTS BELTS
NEW USED NEW
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 10.5
6.3 9.4 8.5 12.6
100
80

BELT TENSION METHOD

Requires belt tension gage that measures tension in belt in units
of lbs force.
6.1
7.4
MOUNTING
8.4
BOLTS (4)
7.2
Fig. 56 — Belt Drive Motor Mounting

Pre-Start and Start-Up

This completes the mechanical installation of the unit. Refer to
the unit's Service Manual for detailed Pre-Start and Start-Up
instructions. Download the latest versions from HVAC Part-
ners (www.hvacpartners.com).
40
BLOWER PULLEY
V-BELT
MOTOR
PULLEY
MOTOR
MOTOR MOUNTING
PLATE