61
Fig. 68 — V-Belt Force Label
Fig. 69 — 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 instruc-
tions. Download the latest versions from HVAC Partners
(www.hvacpartners.com).
Table 1
Table 2
BELT 
CROSS 
SECTION
SMALLEST 
SHEAVE 
DIAMETER
BELT DEFLECTION FORCE (LBS)
UNNOTCHED 
BELTS
NOTCHED BELTS
USED NEW USED NEW
A, AX
3.0-3.6 3.7 5.5 4.1   6.1
3.8-4.8 4.5 6.8 5.0   7.4
5.0-7.0 5.4 8.0 5.7   8.4
B, BX
3.4-4.2 — — 4.9   7.2
4.4-5.6 5.3 7.9 7.1 10.5
5.8-8.6 6.3 9.4 8.5 12.6
BELT CONDITION TENSION FORCE IN BELT (LBS)
New 100
Used 80
BLOWER PULLEY
V-BELT
MOTOR 
PULLEY
MOTOR
MOTOR MOUNTING
PLATE 
MOUNTING
BOLTS (4)