SystemAir AW Series User Manual

12
| Troubleshooting/maintenance/repair
11 Troubleshooting/maintenance/repair
11.1 Safety information
♦ Troubleshooting/maintenance/repair may only be carried out by adequately qualified persons, details see Table 1
Qualifications, page 1.
♦ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective equipment,
page 2.
♦ Observe the 5 rules of electrical safety, see 2.3 5 rules of electrical safety, page 2.
♦ Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.
♦ The impeller must be at a standstill.
11.2 Troubleshooting
Table 6 Troubleshooting
Problem Possible causes
Remedy
Fan does not run
smoothly
Impeller imbalance
Rebalancing by a specialist company if possible,
otherwise contact Systemair.
Soiling on the impeller Clean carefully, rebalance
Material decomposition on the
impeller due to aggressive
material conveyed.
Contact Systemair
Impeller rotates in wrong
direction.
Change direction of rotation if possible, otherwise contact
Systemair.
Deformation of impeller due to
excessive temperature.
Ensure that the temperature does not exceed the certified
value/Install new impeller.
Vibrations, oscillations
Check the installation of the fan/check the duct system,
see .
Air output of fan too
low
Impeller rotates in wrong
direction.
Change direction of rotation if possible, otherwise contact
Systemair.
Wrong wiring configuration (e.g.
Y instead of Delta).
Check and possibly correct the wiring configuration.
Pressure losses too high. Optimize the line routing.
Flow regulators not or only
partly open.
Check opening position on site.
Intake or pressure ducts are
blocked.
Remove the blockage.
Grinding sounds
when starting or
operating the fan
Check if the duct connections of
the fan are strained.
Loosen the duct connections and realign it.
Thermal contacts/
resistors have
triggered
Impeller rotates in wrong
direction.
Change direction of rotation if possible, otherwise contact
Systemair.
Missing phase
In case of a 3 phase standard motor (not EC), check if all 3
phase are present.
Motor overheated
Check the cooling impeller (if used), measure the motor
winding (if possible) / contact Systemair.
Capacitor (if used) not or not
correctly connected.
Connect the capacitor correctly.
Motor blocked
Contact Systemair
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SystemAir AW Series Specifications

General

Brand	SystemAir
Model	AW Series
Category	Fan
Language	English