TXP Inst. & Maint. Manual: IM-825
19
Sound insulation of any kind shall not
result in an undue increase in the ambi-
ent temperature above +104°F (+40°C)
on the drive motor.
2.7.4 Hazards from the
environment
Accessibility and location of the fan are
important safety factors. Therefore,
when installing and installing the fan,
ask yourself the following questions:
•
How easy is it for outsiders to get
access to the facility?
•
Does the fan pose a danger to the
environment?
•
Has the system been tuned for the
application?
•
Are additional safety precautions,
such as protective fences, neces-
sary?
•
Can service or maintenance per-
sonnel easily shut down the fan via
accessible switches and secure it
against re-switching?
All these issues are relevant to security.
Only with respect for these aspects can
the fan be operated properly and safely.
2.7.5 Thermal hazards
Hot surfaces on the fan housing
The fan housing assumes the tempera-
ture of the conveying medium during op-
eration. If this is above +122°F (+50°C),
the fan must be protected by the opera-
tor from direct contact. Touching hot
surfaces can lead to burns.
When conveying from the intake side to
the blow-out side, the temperature in the
conveyed medium can be increased.
Depending on the operating conditions,
this temperature difference can be in a
range of up to +176°F (+80°C) depend-
ing on the type.
WARNING!
Risk of burning due to hot
surfaces
Surfaces of the fan can heat
up. Prolonged contact (>1
sec) with these surfaces can
cause burns.
Avoid touching the hot
surfaces
Turn off the fan and
wait until the surfaces
have cooled down
Hot surfaces on the engine
The motor housing heats up during op-
eration. If the temperature rises above
+122°F (+50°C), the fan must be pro-
tected by the operator from direct con-
tact. Touching hot surfaces can lead to
burns.
WARNING!
Risk of burning due to hot
surfaces
Surfaces of the fan can heat
up. Prolonged contact (>1
sec) with these surfaces can
cause burns.
Avoid touching the hot
surfaces
Turn off the fan and
wait until the surfaces
have cooled down
