Troubleshooting/maintenance/repair |
13
Table 6 Activities
Normal operating
conditions
Extreme operating
conditions
Activity
Every six
months
Annually
Quarterly
Every six
months
Check the fan and its components for visible damage,
corrosion and contamination.
X
X
Check the impeller for damage and imbalance.
X
X
Clean the fan/ventilation system (see 12
X
X
Check the screwed connections for damages/defects and
check that they are firmly seated.
X
See normal operating
conditions
Check the fan intake is free from contamination.
X
X
Check the current consumption and compare this with the
rated data.
X
X
Check the vibration dampers (if used) are working
correctly and check for visible damage and corrosion.
X
See normal operating
conditions
Check the electrical and mechanical protective equipment
is working correctly.
X
See normal operating
conditions
Check the fan’s rating plate is legible.
X
X
Check the connection clamps and screwed cable
connections for damage/defects, and check that they are
firmly seated.
X
See normal operating
conditions
Table 7 Activities for fans used for emergency operation.
Check (if present)
Activity
Every six months
Operational readiness of the fan unit
Allow the fan to run for 1 hour
X
Operational readiness of the
emergency system
Allow the "emergency" system to run for
15 minutes
X
Function of the “emergency” control
Test whether the “emergency” control
effectively bridges all the other controls
and switches
X
Spare parts
♦
Use original spare parts from Systemair only.
♦
When ordering spare parts, please specify the serial number of the fan. This can be found on the name plate.
Variable-speed fans
Important
The fan may be destroyed due to unpermitted frequencies.
♦
Pay particular attention to damage from vibrations.
♦
After commissioning, start with shorter maintenance intervals.
♦
If no damage occurs, adjust the maintenance intervals up to the those stated in the operating
instructions.
♦
Responsibility for gradual adaptation is with the system operator.
Overhaul/further maintenance
Pay attention to the safety references and preconditions as in normal maintenance. For the following activities and
functions, contact Systemair:
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