Installation and Operating Instructions
EN
m
DANGER
nm
Centrifugal Fan Boxes – SilentBox
8.2
Fault causes
Fault
Fan does not start
Fan does not turn
(no longer turns)
Fuse has tripped
Vibrations
Abnormal noises
Fan no longer perfor-
ming (speed)
8.3
Standstill and disposal
m
Danger to life due to electric shock!
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!
Parts and components of the unit, whose service life has expired, e.g. due to wear and tear, corrosion, mechanical
load, fatigue and/or other effects that cannot be directly discerned, must be disposed of expertly and properly after
disassembly in accordance with the national and international laws and regulations. The same also applies to auxilia-
ry materials in use. Such as oils and greases or other substances. The intended and unintended further use of worn
parts, e.g. impellers, rolling bearings, filters, etc. can result in danger to persons, the environment as well as machines
and systems. The corresponding operator guidelines applicable on-site must be observed and used.
Please think of the environment, you can make a significant contribution to the environmental protection by returning
batteries and accumulators!
®
SB ...
Causes
– No voltage
– Impeller blocked
– Motor blocked
– Mains voltage failure
– Thermal contact (TK) or motor
protection device has triggered
– Fuse has tripped
– Shorted coil in motor
– Supply line or connection
damaged
– Connected incorrectly
– Contamination
– Attachment-related resonance
– Grinding impeller
– Bearing damage
– Mechanical damage
– Insufficient air delivery
– Incorrect voltage
– Bearing damage
– Contamination
– Insufficient backflow
10
Solution
Check mains voltage
Check connection according to wiring diagram
Clear blockage, clean, replace if necessary
Contact Helios customer services
Check mains voltage
Check the temperature of the incoming flow. The
restart takes place after cooling by switching the
power switch off and on.
See „Fuse has tripped"
Contact Helios customer services
Replace parts, replace motor if necessary
(Contact Helios customer services)
Check, modify connection
Clean
Check or repair attachment
Clean impeller, replace if necessary
Contact Helios customer services
Carry out maintenance
Check/clear inflow and outflow
Check/modify connection
Contact Helios customer services
Clean
Widen backflow openings