Installation, Operation & Maintenance Manual
IM-895
2
Safety & Hazard Warnings
For general safety practices for air moving equipment, see AMCA Bulletin 410. Aerovent offers many safety accessories. These
safety devices include (but are not limited to) Firestat, inlet and discharge screens. The use and suitability of safety devices is the
responsibility of the purchaser.
The use and storage of gasoline or other flammable vapors and liquids in open containers in the vicinity of this appliance is
hazardous. If you smell gas:
• Open windows (indoor installation only)
• Do not touch electrical switches
• Extinguish any open flame
• Immediately call your gas supplier
Facility-related safety conditions include fans’ accessibility and location. How easily can non-service personnel access the unit? Is
the fan in a hazardous duty environment? Was the unit ordered for this duty? Other concerns must also be addressed. All fans
should be powered through switches, which are easily accessible to service personnel from the fan. Fan power must have the
ability to be “locked out” by service personnel trained in lockout/tagout procedures per OSHA requirements (29CFR1910.147).
When performing lockout, be aware of factors, such as building pressure and additional fans in the system that can influence
unwanted fan rotation (wind milling). If you have any doubt about your ability to perform a task, seek a person qualified to do that
task. Before any work is done on a fan, ensure that the fan is isolated from the electrical supply using a 'lockout/tagout system.'
Note:
A stationary, non-rotating fan does not mean that the fan is isolated from the electrical supply. A non-rotating fan could be
subject to controls or other circuit protection devices that may start the fan without notice.
The following safety precautions should be followed, where applicable:
• Do not attempt to slow a rotating impeller even when it is isolated from the electrical supply. Fan impellers have a high inertia
and injury could result from an attempt to stop it. It is recommended that the impeller is isolated by closing off the inlet or
outlet to prevent wind-driven rotation. If an impeller is chocked to prevent rotation, ensure that the chocks are removed prior
to start up.
• Wear appropriate personal protective equipment. This may include protective clothing, eye protection, ear protection,
respiratory equipment, hand and foot protection when installing or servicing the fan.
• Always use caution when entering a fan's air path. High velocity airflow can cause you to lose your balance.
• Motor, bearings and drives can be hot, and similarly if the fan is subject to processes that are hot, the fan housing could be
hot.
• Fans are often used to move hazardous materials that could be dangerous. Always wear protective clothing and take
precautions not to inhale dust/gases. If hazardous chemical vapors are present, respiratory equipment may be required.
• Sharp edges – wear protective gloves when handling, installing or servicing a fan.
• Fans can operate at high decibel sound levels. Wear proper ear protection to protect from excessive noise levels.
• Access Doors – Do not open access doors when fan is in operation. The effects of suction and air pressure could result in injury.
• When working around pulleys and belts, keep hands away from pinch points. This pertains to when the fan is under or off
power.
Throughout this manual, there are a number of HAZARD WARNINGS that must be read and adhered to in order to prevent
possible personal injury and/or damage to equipment. Two signal words "WARNING" and "CAUTION" are used to indicate the
severity of a hazard and are preceded by the safety alert symbol. It is the responsibility of all personnel involved in installation,
operation and maintenance to fully understand the warning and caution procedures by which hazards are to be avoided.
DANGER:
Indicates the most serious hazard and is used when serious injury or death WILL result from misuse or failure to
follow specific instructions.
WARNING:
Used when serious injury or death MAY result from misuse or failure to follow specific instructions.
CAUTION:
Used when minor or moderate injury or product / equipment damage MAY result from misuse or failure to follow
specific instructions.
NOTICE:
Indicates information considered important, but not hazard-related.