Cleaning; Information - Fault Causes - Helios RDD 200-Ex Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
EN
m
WARNING
RD..  and VD..  – Roof fans
– It is recommended to maintain a system maintenance book and enter the tests and test results carried out.
Compare the results with the results of previous audits. If the parameters vary, you should always contact the
manufacturer.
– The instructions in the maintenance manual of the electric motor must be observed.
4.1

Cleaning

– The unit must be fully isolated from the mains power supply before any cleaning work!
Wet cleaning under tension can lead to electric shock.
– Regular inspection, and with periodic cleaning is required in order to avoid imbalance due to pollution. Clean the
flow area of the fan.
– Do not use aggressive, paint solvent agents!
– High-pressure cleaners or water jets are not permitted!
4.2 Information – Fault causes
Error/Fault
Fan does not start
Fuse tripped
Residual current device
tripped
Motor protection
switch triggered
Vibrations
Abnormal noises
Power consumption too
high
Fan does not perform
(speed)
Causes
No voltage, phase missing
Impeller blocked
Motor blocked
Short-circuited coil/ground fault in motor Have motor replaced by manufacturer
Supply line/connection damaged
Connected incorrectly
Motor insulation damaged
Supply line insulation damaged
Tight bearing
Impeller touching
Incorrect operating point
Contaminated motor
Contamination
Bearing damage
Incorrect operating point
Attachment-related resonance
Incorrect direction of rotation
Impeller imbalanced
Incorrect operating point
Grinding impeller
Bearing damage
Mechanical damage
Incorrect direction of rotation
Incorrect operating point
Grinding impeller
Bearing damage
Incorrect operating point
Incorrect voltage
Bearing damage
Contamination
Insufficient backflow
Incorrect direction of rotation
6
Solution
Check voltage
Clear blockage, clean, have impeller repla-
ced by manufacturer if necessary
Check motor, have replaced by manufactu-
rer if necessary
Replace parts, have motor replaced by ma-
nufacturer if necessary
Check connection, change
Have motor replaced by manufacturer
Replace supply lines
Have bearing replaced by manufacturer
Clean, have impeller replaced by manufactu-
rer if necessary
Check suitability of fan, Check/keep inflow
and outflow clear
Clean
Clean
Have bearing replaced by manufacturer
Check suitability of fan, Check/keep inflow
and outflow clear
Check or repair attachment
Check/modify connection
Rebalancing by manufacturer
Check suitability of fan, Check/keep inflow
and outflow clear
Clean, have impeller replaced by manufactu-
rer if necessary
Have bearing replaced by manufacturer
Carry out maintenance
Check, modify connection
Check suitability of fan, Check/keep inflow
and outflow clear
Clean, have impeller replaced by manufactu-
rer if necessary
Have bearing replaced by manufacturer
Check suitability of fan, Check/keep inflow
and outflow clear
Check/modify connection
Have bearing replaced by manufacturer
Clean
Widen backflow openings
Check/modify connection