ENVIRO-TEC
17
FORM ET115.24-NOM11 (118)
SECTION THREE - NORMAL OPERATION & PERIODIC MAINTENANCE
FAN DECK
The fan assembly is easily removed from the unit
without disconnecting the ductwork for service access
to motors and blowers at, or away from the unit.
Should the assembly require more extensive service,
the motor/ blower assembly may be removed from the
unit to facilitate such operations as motor or blower
wheel/housing replacement, etc. Dirt and dust should
not be allowed to accumulate on the blower wheel or
housing. This can result in an unbalanced blower wheel
condition that can damage a blower wheel or motor.
The wheel and housing may be cleaned periodically
using a vacuum cleaner and a brush taking care not to
dislodge the factory balancing weights on the blower
wheel blades.
GENERAL
Each unit on a job will have its own unique operating
environment and conditions that may dictate a
maintenance schedule for that unit that is dierent
from other equipment on the job. A formal schedule of
regular maintenance and an individual unit log should
be established and maintained. This will help to achieve
the maximum performance and service life of each unit
on the job.
Information regarding safety
precautions contained in the preface
at the beginning of this manual should
be followed during any service and
maintenance operations.
For more detailed information concerning service
operations, consult your Sales Representative or the
Factory.
MOTOR/BLOWER ASSEMBLY
The type of fan operation is determined by the control
components and their method of wiring, and may vary
from unit to unit. Refer to the wiring diagram for each
unit for that unit’s individual operating characteristics.
Motors are permanently lubricated, PSC or EC type and
do not require eld lubrication.
Figure 6a-6c: Fan deck removal
Figure 6a
Figure 6b
Figure 6c
Figure 5a-5b: Bottom panel removal
Figure 5a
Figure 5b
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