Spare Parts; Standstill And Disposal - Helios VDD T120 Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
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WARNING
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VDD.. – Roof Fans
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)
4.3

Spare parts

Only original Helios spare parts are to be used. All repairs may only be carried out by authorised specialist personnel/
companies.
4.4

Standstill and disposal

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WARNING
When dismantling, live parts can be exposed, which can result in electric shock if touched. Before dismant-
ling, isolate the unit from the mains power supply and protect against being switching on again!
The generally applicable safety at work and accident prevention regulations must be observed!
– Electrical work must only be carried out by an authorised electrician
– Fully isolate electrical connection from mains power supply
– Use appropriate lifting equipment and fastening devices to dismantle the fan
– Observe the instructions in the electric motor maintenance manual for decommissioning the motor
– Dispose of the fan components according to the valid rules and laws
Causes
No voltage, phase missing
Impeller blocked
Motor blocked
Short-circuited coil/ground fault in
motor
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 out of balance
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
7
Solution
Check mains voltage
Clear blockage, clean, replace impeller if
necessary
Check motor, replace if necessary
Replace motor
Replace parts, replace motor if necessary
Check connection, change
Replace motor
Replace supply lines
Replace bearing
Clean, replace impeller if necessary
Check suitability of fan, Check/keep inflow
and outflow clear
Clean
Clean
Replace bearing
Check suitability of fan, Check/keep inflow
and outflow clear
Check or repair attachment, use vibration
damper
Check / change connection
Rebalance by specialist
Check suitability of fan, Check/keep inflow
and outflow clear
Clean, replace if necessary
Replace bearing
Carry out maintenance
Check / change connection
Check suitability of fan, Check/keep inflow
and outflow clear
Clean, replace if necessary
Replace bearing
Check suitability of fan, Check/keep inflow
and outflow clear
Check/modify connection
Replace bearing
Clean
Widen backflow openings
Check / change connection
EN