12
Fan Drive System
BALTIDRIVE
®
Power Train, Independent Fan, BALTIGUARD
™
and BALTIGUARD
™
Plus Fan System
The BALTIDRIVE
®
Power Train consists of a solid-
backed, multi-groove, neoprene/polyester belt rated
for cooling tower service, and corrosion resistant
sheaves. These components provide high reliability
with low maintenance requirements.
The independent fan option consists of one fan motor
and drive assembly for each fan to allow independent
operation, adding redundancy and an additional step
of fan cycling and capacity control to models with
more than one fan.
The BALTIGUARD™ Fan System consists of two standard single-speed fan motors and
drive assemblies. One drive assembly is sized for full speed and load, and the other is
sized for approximately 2/3 speed and consumes only 1/3 the design horsepower.
The BALTIGUARD PLUS™ Fan System builds on the advantages of the BALTIGUARD™
Fan System by adding a VFD to one of the motors.
Inspection & Maintenance
These drives require a periodic check of the belt condition and, when necessary, tension
adjustment. The recommended service intervals are as follows:
•
Initial Start-up:
Servicing is not required prior to initial unit start-up. The drive has
been tensioned and aligned at the factory.
•
Seasonal Start-up:
Readjust the belt tension (if required).
•
Operation:
After the first 24 hours of operation, readjust the belt tension on a new unit
start-up or installation of a new belt. Thereafter, check the belt condition monthly, and
adjust tension as necessary. Readjust tension at least once every three months.
NOTE:
There should be no “chirp”
or “squeal” when the fan motor is
started.
Figure 4a.
Belt Tension with a Straight Edge
Figure 4b.
Belt Tension with a Tape Measure
Figure 3.
BALTIGUARD™ Fan System
DANGER:
Rotating equipment
will cause severe personal injury
or death to persons who come in
contact. Do not perform any service
on or near the fans, motors, and
drives, or inside the unit without
first ensuring that the fans and
pump motors are disconnected,
locked out, and tagged out.
