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W W W . B A L T I M O R E A I R C O I L . C O M . A U
M A R 2 1 0 - 2
Motor Recommendations
BAC standard motors are designed for storage at ambient temperatures
of -20ºC to 40ºC. Prolonged periods of exposure above or below these
specified conditions could degrade components of the motor and cause
malfunction or premature failure.
• Motors should be removed and stored inside whenever possible.
When indoor storage is not possible the motors must be covered
with a tarpaulin. Do not use plastic or plastic film. This cover should
extend below the motor and be secured; however, it should not
tightly wrap the motor. This will allow the captive air space to
breathe, minimizing formation of condensation.
• Care must also be taken to protect the motor from flooding or from
harmful chemical vapors.
• The storage area should be free from ambient vibration. Excessive
vibration can cause bearing damage. Motors that must be stored in
areas with high ambient vibration, such as from heavy construction
equipment or other sources, must have the shaft locked to prevent
any movement.
• Precautions should be taken to prevent rodents, snakes, birds, or
other small animals from nesting inside the motors. In areas where
they are prevalent, precautions must also be taken to prevent
insects from gaining access to the interior of the motor.
• If not stored indoors in a controlled environment, some form of
heating must be utilized to prevent condensation from accumulating
in the motor. This heating should maintain the winding temperature
at a minimum of 5ºC above the ambient temperature
of the room, keeping it from dropping below the dew point where
condensation could form inside the motor. If space heaters are
supplied, they should be energized. If none are available, single
phase or “trickle” heating may be utilized by energizing one phase
of the motor’s winding with a low voltage. Request the required
voltage and transformer capacity from your local BAC Representative.
A third option is to use an auxiliary heat source and keep the
winding warm by either convection or blowing warm air into the motor.
Operation and Maintenance
Prolonged Outdoor Storage
Storage Preparation
Motor Recommendations
