Fire Protection | Data sheet No. 41350 | Version 01-2019 |
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KRM-X® Duct Smoke Detector
Installation
1.
Drill a hole 43 – 44 mm in diameter at the intended
mounting location.
Note: The TurboTube measuring tube can be installed on top or
at the bottom or side of the duct for all duct cross-sections
(including round ducts).
2.
•
Determine how long the measuring tube must be.
•
If necessary, shorten the tube; minimum length 160 mm including
end plug (cutting length 145 minimum – see drawing).
•
Deburr the cutting face and put the end plug back on
up to the stop
collar
.
Note: The KRM-X must only be used with the red end plug.
Observe the mark on the end plug indicating the flow direction.
3.
•
Determine the direction of flow and mount the adapter plate such
that the line on the adapter plate under the text ”Strömungsrichtung”
is parallel to the flow direction.
•
Four self-tapping screws (not included in delivery) serve for attaching
the adapter plate to the sheet metal duct.
4.
Installation on the duct
•
Rectangular air duct – see picture on the right
•
For installation on a circular air duct, use the KS-X-type mounting
bracket and the rubber bushing. The mounting bracket has bend
perforations for adaption to a round duct.
The KS-X-type mounting
bracket is supplied flat.
5.
Installation on air ducts with insulation
•
Use the rubber bushing and insert it into the ø 43 – 44 mm opening
in the air duct.
•
Install the mounting bracket.
•
Insert the assembled adapter plate together with the measuring tube
by sliding the measuring tube through the bushing, and screw the
adapter plate onto the mounting bracket using 4 self-tapping screws.
Then the insulation can be installed.
min. 145 mm
Mounting
bracket
inside
Rubber bushing
Mounting
bracket
Insulation
outside
Caution: operation without
end plug not allowed
Cutting length of aluminum tube 145
Minimum length 160
