CALEFFI Uni-Switch 626 Series, Руководство пользователя

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68235.06
Installation:
To install the flow switch correctly follow these instructions:
- When selecting the blade, identify the diameter of the
pipe to which the appliance will be fitted;
- The appliance comes pre-fitted with the 1” blade;
- For diameters of 1 1/4” (DN 32) and above, the pre-fitted
blade should be removed and the long blade fitted, cutting
it to the correct corresponding size for the desired
diameter;
- Fit the flow switch to the pipe, carefully observing the
direction of flow indicated by the arrows stamped on the
cover and on the switch mounting plate. When fitted, the
distance between the upper surface of the pipe and upper
surface of the switch mounting plate should be 3 1/8” (80
mm);
-The tee connection in the pipe can be formed by the
direct welding of a threaded socket;
-This also applies to a 1” (DN 25) diameter pipe, as the
blades are designed to be contained in these smaller
dimensions.
-It is however advisable to check that the weld is free from
burrs on the inside so that the blade can move freely in the
tee connection;
-Whenever possible the flow switch should be installed
with control stem in the vertical position to avoid deposits
of impurities which may cause it to function incorrectly.
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