3
Smoke/Shield PTC™
Mode 1 Installation Procedure
315
±
20mm
40
±
*
75mm
5mm
130mm
135mm
108
130mm
TOP
*This dimension will vary on circular damper. Select
dimension to give smoothest radius on bowden cable.
1. Prepare ductwork
Prepare ductwork for Mechanical
fusible link as detailed below. (For
ductless installations, a suitable sized
plate or bracket must be fitted to the
installation, to allow the fusible link
fixing details to be achieved).
●
Within the Mode 1 kit of parts, is a
self adhesive fusible link drilling
template label.
●
This template should be positioned
on the duct in accordance with
the dimensions shown above.
●
Using a 3.0mm dia bit, drill 2 fixing
holes.
●
Using a 25mm dia hole cutter, drill
the central hole.
●
Remove sharp edges.
248
28
56
84
260
100
112
12
108
70
25
130
108
130
Smoke/Shield PTC™ Control Modes
are located outside of the ductwork
for ease of access and installation.
Control Modes 5 and 6 can be fitted
in any one of three orientations i.e.
Vertically down (Position 1)
Horizontally (Position 2), or
Vertically up (Position 3).
This can be simply and easily carried
out on site, by repositioning the
Location Plate and Control Mode on
to the
snap
lock™ Drive Interface.
This flexibility ensures that the
damper and control mode require the
minimal amount of room.
Mode 1 (Smoke/Shield only)
Modes 5 and 6 Three position 180° (Pivotable Control Mode)
Control Mode Dimensional Data
2. Fit Control Mode
●
Remove transit plate from damper
shroud, and discard.
●
Slide the interface and mode
assembly into the shroud, having
ensured that the slots in the
interface case and the drive
coupling are in line.
●
Push the assembly fully home until
the spring retaining pin engages
through the location hole in the
shroud (
snap
lock™ ).
●
(The mode 1 option, unlike the
mode 5/6, does not have the
facility of alternative actuator fixing
positions).
3. Fit Mechanical Fusible Link
●
Locate the fusible link assembly in
the prepared hole in duct.
●
Using the 2 self tapping screws
provided, secure the assembly.
4. Electrical Connections
●
Where use is to be made of the
integral microswitch for indication
purposes, this should be wired as
described in the section
‘Application and wiring’.
5. Reset and Test Unit
●
If the mechanical fusible link is
not fitted to the ductwork, it will
not be possible to reset the
unit. – This is a safety feature.
●
Using a 14mm A/F spanner, rotate
the input shaft clockwise to reset
the damper.
●
NOTE: After resetting, never leave
the spanner attached to the reset
shaft.
●
Test unit by simply unscrewing
wing nut of the fusible link
assembly. This will result in the
damper releasing. Check for
damper closure.
FUSIBLE LINK
●
Re-tighten the wing nut.
●
Using a 14mm A/F spanner, rotate
the input shaft clockwise to reset
the damper.
●
Remove spanner.
Note: It will not be possible to reset
the control mode if the fusible link is
not correctly installed.
