14.
Actuator General Information
14.1 Actuators are fitted to the 12mm A/F square shaft on the Transfer Drive (TD) box.
14.2 Check that the actuator, thermal fuses (where present) and wires are undamaged.
14.3 Check the actuator label to for correct voltage and operation as below:
• 24V AC/DC or 230V AC
• Spring Closed
• With Thermal Fuse (TF)
15.
Instructions for fitting Thermal Fuse (TF)
15.1 For dampers fitted with TF actuators - Fix self-adhesive TF template (supplied) onto the duct. This
should typically be above the actuator. For round ducts, the three drilled holes must be in-line with the
duct axis. (For ductless installations, a TF bracket is available from BSB and can be fixed to the
damper casing).
15.2 Drill holes in duct (sizes/positions are detailed on template label - see fig. 14). Remove burrs.
15.3 Fit the TF to the duct with the two screws provided using Philips No.2 screwdriver/bit.
16.
Instructions for Fitting the FSD-TD actuator (fall-safe closed) -
Fig. 1
16.1 Actuators are normally factory fitted, but optionally may be supplied loose for fitting on site.
16.2 When fitting the actuator for the first time, check the actuator voltage.
16.3 Damper must be in the closed position.
16.4 Fit actuator cradle In desired orientation and then slide actuator into position. Fit indication pointer, large
washer and 8mm A/F screw (all provided) and tighten to 5Nm max torque. See Fig. 1
16.5 When power is applied, the damper blades will start to travel to the open position.
16.6 Dampers can be manually wound open to allow duct work systems to be tested.
Manually wind the actuator, using the crank handle (provided) fully to the 'reset open' position, and lock
into position by turning the key in reverse sharply a quarter tum. (Due care should be taken to stop
winding when slight resistance is encountered - over-winding can result in permanent damage to the
damper/ actuator which may invalidate the wamanty). It is important that you use the manual winding
key provided. The use of a powered drill or screwdriver is not permitted.
17.
Instructions for Wiring the FSD-TD actuator
17.1 Terminate wires within a junction box (supplied by others) compliant with site rules and Electrical
Installation Regulations (8S7671) in close proximity to actuator, also referring to wiring diagram on
actuator label. Please refer to Page XX for wiring detail.
17.2 Due care should be taken to stop winding when slight resistance is encountered — over-winding can
result in permanent damage to the damper/ actuator which may invalidate the warranty.
17.3 Test the unit. (see section 22)
Page 15
FSD-TD - Installation Operation and Maintenance Instructions
Fig. 14
