ThermShield MF(1 & 2) Installation Guide
4
Swegon reserves the right to alter specifications. 20210615 - L00014
Fire damper installation
circular openings
The duct connected to the fire damper must be
supported or hung in such a way that the damper does
not carry its weight. The damper must not support
any part of the surrounding construction or wall which
could cause damage and consequent damper failure. It
is recommended to connect the damper to a flexible
connection on either end of the damper.
The damper driving mechanism can be placed on either
side of the wall, however it needs to be placed so that it
ensures an easy access during inspection.
Mounting is possible with the blade axis in horizontal or
in vertical position
The installation must comply with the tests that were
performed during certification
Avoid any obstruction of the moving blade by the
connected ducts
The class of air-tightness is maintained in case the
installation of the damper is made in accordance with the
technical manual
General operating temperature: 50 °C max.
For indoor use only
The gap in the installation opening between the fire
damper and the wall/ ceiling can be increased by up
to 50% of the gap area, or decreased to the smallest
dimension that is shown in the table:
Damper size - Ød [mm]
Opening size - A (minimum)
Ød
≤
160
Ød + 85 mm
180
≤
Ød
≤
315
Ød + 75 mm
355
≤
Ød
≤
450
Ød + 65 mm
Ød > 450
Ød + 55 mm
Installation in both, vertical and horizontal axis of rotation
of the dampers blade is acceptable (with the axis angle
0 - 360°).
The fire damper must be installed into a fire partition
structure in such a way that the damper blade in its
closed position is located inside this structure (except for
installation with MF installation frame).
To help you find the suspension plane, a bendable hinge
is provided on the damper body and the red tape is
placed on the casing to mark the location of the wall
limit (distance from wall limit to the end of fire damper
is 215mm). This does not apply for Applique/ MF1/ MF2
kit installations. Check the operation of the fire damper
before commencing the installation!
WALL LIMIT
215 mm