S&P HTB-90 N IP55 Manual De Instalación página 29

OPERATION INSTRUCTIONS
1.- The speed selector has four positions:
0 ......... OFF
1 ......... HIGH SPEED
2 ......... MEDIUM SPEED
3 ......... LOW SPEED
MAINTENANCE
1.- Periodical cleaning is the only maintenance required.
2.- As this is an IP55 fan, it can be cleaned on the outside, without taking it apart
using a gentle spray of water from a distance (never submerge in water). Then
dry with a dry cloth.
3. During maintenance be careful not to lean on the blades, or spray water on
them as this may cause them to unbalance and increase wobbling of the fan.
4. - Do not use abrasive cleaning products as they may damage the finish.
IMPORTANT NOTE:
disconnected from the mains supply.
TROUBLESHOOTING
IMPORTANT NOTE:
the electrical supply.
Problem
Fan does not start up
Noisy fan
Fan wobbles or vibrates
excessively
Before starting fan maintenance, ensure that it is
Before handling the fan, ensure that it is disconnected from
Cause of problem
1. Fuse blown or mains
switch disconnected
2. Loose connections on the
terminal strip
3. The blades are not fixed to
the fan
4. Loose screws.
5. Screws loose between the
blades and the motor
support.
6. The blades are not well
seated
7. The housing is not well
fixed to the roof.
8. The blades are
unbalanced.
Suggested solution
1. Check fuses or mains
2. check connections
3. Fix the blades to the fan
4. Check all the fan screws
5. Check the screws that fix
6. Check that all the blades
7. Check the anchoring on
8. Check the position of two
28
switch
before starting.
the blades to the motor
housing and tighten if
needed.
are well seated and with
the same tilting angle.
the hook support.
of the blades