IMU-BPP-003-J-LX-5-2020.11.05-ENG-1/6
GRYFIT TECHNIK Sp. z o.o. – ul. Łąkowa 11 – 95-050 Konstantynów Łódzki – Polska – tel.: (48) 91 432 35 00 – fax: (48) 91 432 35 36 – e-mail: info@gryfit.com – www.gryfit.com
KRS 0000504565 – NIP 927-193-38-43 – REGON 081202373
INSTALLATION AND USAGE MANUAL
Manufacturer: GRYFIT TECHNIK Sp. z o.o. – ul. Łąkowa 11 – 95-050 Konstantynów Łódzki
LX-5 FIRE DAMPERS
WITH FDG-WT OR BELIMO ACTUATORS
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CERTIFICATE OF CONSTANCY OF PERFORMANCE
1- INSTALLATION
Installation should be carried out by professional who has been trained in GRYFIT components installation.
1.1- OVERALL DIMENSION OF THE INSTALLATION OPENING
To install the damper properly the recommended overall dimension of the installation opening is (L+90) x (H+90) mm if the
damper is installed in the brick, concrete wall or concrete horizontal partition and (L+70) x (H+70) mm if it is installed in the
light-weight wall. Smaller overall dimension of the installation opening is allowed however in that case installation should
be carried with particular care - the clearance between damper body and wall should be entirely filled with the grout or
heat resisting sealant or filler. The minimum overall dimension of the installation opening is determined by the damper
flange size.
1.2- FIXING AND INSTALLATION
Close the damper before installation. Place the damper axially in the installation opening. In order to provide partition walls
with fire resistance, it is absolutely necessary to observe the mortaring border line which is marked on the label on the
damper casing. In case of installation in the brick or concrete walls, facing should be made of masonry mortar or non-
shrink grout. In case of installation in the plaster-cardboard walls, the drawings on the next pages should be followed.
NOTES:
a) Damper mechanism must be always accessible for inspection and maintenance – keep free space of 200 mm
between damper mechanism and nearest building partition or any other obstacle which may restrict the
access to the damper mechanism.
b) It is highly recommended to use the UM optional installation brackets to facilitate installation. Installation
brackets are delivered flat and have to be bended before installation of the product.
c) It is absolutely necessary to respect damper installation mortaring border line which is clearly marked on the
label to be found on the damper casing.
d) While installing it is impermissible to grime a control mechanism of the damper with mortar, sealant, filler,
glue or paints. The control mechanism of the damper has to be protected until the masonry and completion
work is finished.
e) The damper blade has to be closed during installation and until mortar, sealant, filler or glue is hardened. The
damper casing cannot be burdened during installation otherwise it can result in deformation of the casing
and damage of the damper blade.
1.3- INSTALLATION METHOD
The dampers with dimensions up to LxH=1000x1000 can be installed both with their blade axis positioned horizontally and
vertically. As regards the larger dampers it is recommended to install them with their blade axis positioned horizontally, or
to consult with our service center about installation with the blade axis positioned vertically.
1.3.1- APPROVED BUIDLING PARTIONS IN WHICH THE GRYFIT LX-5 DAMPERS CAN BE INSTALLED
The dampers can be installed in the following vertical and horizontal building partitions:
Concrete wall with a thickness not smaller than 125 mm,
Hollow brick walls with a thickness not smaller than 125 mm,
Concrete masonry walls with a thickness not smaller than 125 mm,
Plasterboard walls installed with metal studs framing approved to fire resistance class not less than EI 120 with a
thickness not smaller than 125 mm,
Concrete floor with a thickness not smaller than 150 mm.
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