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SensoStar U
Note concerning
we recommend to overturn the meter through 90°.
SensoStar I
4.2 Installation of
The multi-jet flow sensor type MSH-IST has a 2" connection as described in EN ISO 4064-4 / EN 14154-2 (IST;
interface for Ista heat meters) and must be installed without an adapter.
Mounting the flow sensor type MSH-IST in a single pipe connection piece
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Flush the pipes professionally, taking care not to damage any system components. Then close all the shut-
off valves. Open the nearest draining valve for pressure release.
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Drain the closed-off pipe section.
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Take into account the direction of flow (check the connection piece)!
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Remove the overflow flange or the old heat meter from the connection piece using a wrench.
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Remove all old gaskets. Check sealing surfaces and threads for imperfections or dirt. If necessary, debur or
clean with a suitable cleaning
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Place the new profile gasket into the connection piece with the flat surface facing
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Lubricate the external thread of the flow sensor with a thin layer of food safe silicon grease.
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Check that the O-ring on the outlet of the flow sensor is in the correct position.
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Screw in the heat meter tightly by hand and then tighten additionally with a suitable wrench to the
mechanical end stop (metal-to-metal).
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Rotate the calculator to the best position for read-out, or detach it and mount it nearby.
Page 29 of 79
Article no.: 1080621031
: For the mounting in a heating system with a small quantity of air in the medium
in a fix installed single pipe connection piece
liquid.
2022_02_02
up.
Subject to technical change! Errors excepted.
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