Part Number
Operating Instructions
Item no. LS-119.
Revision 003
Release 24/05/2016
Page 7 of 8
ebm-papst A&NZ Pty Ltd
10 Oxford Road · Laverton North VIC 3026 · Phone +61 (03) 9360 6400 · Fax +61 (03) 9360 6464
ABN 33 115 927 556
NSW Phone +61 (02) 9827 6400 · NSW Fax +61 (02) 9827 6464 · NZ Phone +64 (09) 525 0245 · NZ Fax +64 (09) 525 0246
[email protected] · www.ebmpapst.com.au
W4S250-DI02-01
4.6
Switch on device
The device may only be switched on if it has been installed
properly and in accordance with its intended use, including the
required safety mechanism and professional electrical
connection. This also applies for devices which have already
been equipped with plugs and terminals or similar connectors by
the customer.
WARNING
Hot motor housing
Fire hazard
→ Ensure that no combustible or flammable
materials are located close to the fan.
Inspect the device for visible external damage and the
proper function of the protective features before switching it
on.
Check the air flow paths of the fan for foreign objects and
remove any that are found.
Apply the nominal voltage to the voltage supply.
4.7
Switching off the device
Disconnect the device from the supply voltage at the main
switch for the supply line.
When disconnecting, be sure to disconnect the earth wire
connection last.
5.
MAINTENANCE, MALFUNCTIONS, POSSIBLE CAUSES
AND REMEDIES
Do not perform any repairs on your device. Return the device to
ebm-papst A&NZ for repair or replacement.
WARNING
Terminals and connections have voltage even
with a unit that is shut off
Electric shock
→ Wait five minutes after disconnecting the voltage
at all poles before opening the device.
CAUTION
The motor restarts automatically when operating
voltage is applied, e.g. after a power failure.
Danger of injury
→ Keep out of the danger zone of the device.
→ When working on the device, switch off the mains
supply voltage and secure the latter from being
switched on again.
→ Wait until the device stops.
If the device remains out of use for some time, e.g.
when in storage, we recommend switching the device
on for at least two hours to allow any condensate to
evaporate and to move the bearings.
Malfunction/error
Possible
cause
Possible remedy
Impeller running
roughly
Imbalance in
rotating parts
Clean the device; if
imbalance is still
evident after
cleaning, replace the
device. If you have
attached any weight
clips during cleaning,
make sure to remove
them afterwards.
Motor does not
turn
Mechanical
blockage
Switch off, de-
energise, and remove
mechanical blockage.
Mains supply
voltage faulty
Check mains supply
voltage, restore
power supply.
Faulty
connection
De-energise, correct
connection, see
connection diagram.
Thermal over-
load protector
responded
Allow motor to cool
off, locate and rectify
cause of error, if
necessary cancel
restart lock-out.
Unacceptable
operating point
Check operating
point.
Over temperature
of motor
Ambient
temperature
too high
Lower ambient
temperature if
possible.
Insufficient
cooling
Improve cooling.
If you have any other problems, contact ebm-papst
A&NZ