44/49 |
F-R60
A
2
A
1
B
3
B
2
B
4
B
1
✓
Actuator Replacement and Thermal Fuse Replacement
Disconnect main power supply
• Remove two screws from the thermal fuse and remove the fuse from the damper body
• Check if the blade is in the closed position if not drive actuator manually to closed position
• Mark the upwards facing (visible) actuator side "L" or "R"
• Remove two front actuator screws
• Remove the actuator from the mechanism base plate
• Mark the shafts groove position
Check the thermal fuse for damage and test if needed un-click and replace the fuses bottom replaceable part
• insert the fuse's bottom part into the cavity on dampers body
• Fix the two fuse screws
• Check that the blade remained in closed position and that the axle indication is aligned
• Place the actuator with the same side pointing upwards (as previously marked side "L" or "R") onto the dampers axis
and base plate
• Fix the two top screws slightly (avoid damage to threads)
• Perform dampers functionality check