10
IT
ENG
Operation with servo motor
Reset:
• Insert into the slot on the servomotor appropriate key supplied and turn it clockwise until the indicator in position
90 °
• Perform a fast rotating counterclockwise to lock the actuator in the open position
Manual opening (test):
• Insert into the slot on the servomotor appropriate key supplied and turn it counter-clockwise approximately ½ turn
in order to engage the return spring that will bring in automatic servo motor in the closed position and the indicator
at 0 ° position
Motorized opening (test):
• Turn the lever on the thermoelectric fuse located next to the servomotor or disconnect power.
MECHANICAL FUSE REPLACEMENT
CAUTION!
All operations of connection or maintenance must be carried out with the damper closed and de-energized.
Operation
Fuse replacement is required every time the peak temperature within the duct, has exceeded the specified degrees
Celsius on the same fuse. A tab shows the status of the fuse (fig. 9), when the body disappears into the plastic fuse
holder (fig. 10), it is necessary to replace the fuse.
Procedure:
• Make sure the damper is unarmed
verifying visibly that the indicator on
the lever indicates the symbol] - [on
the carter. Otherwise, act on the test
button to manually open the damper.
• Remove the clear plastic cover by
unscrewing the central fixing screw
(fig. 11)
• Unscrew the 2 screws and remove the
release mechanism from the plate.
• Replace the fuse by compressing the
spring and hooking the two protrud-
ing pins (fig. 12)
fig. 9
fig. 10
fig. 11
fig. 12
Central fixing screw
Fixing screw
release mechanism
Clear plastic cover