Siemens SIMOTICS FD 1LN1 Operating Instructions & Installation Instructions page 73

1. Select piping materials with the required chemical resistance in accordance with the water
2. Use flexible water lines and hoses. This avoids mechanical stress at the connections as a
3. Route and support the water pipes so that the connecting flanges are not exposed to
4. Remove the flange cover plate.
5. Correctly insert the seals.
6. Before connecting the pipes, flush them in order to remove any deposits and foreign bodies.
7. Install suitable filters in the cooling water intake pipe if the cooling water might contain dirt
8. Connect the cooling water pipes to the flanges.
Filling and venting the cooler
1. After making the flange connections, open the vent plug and fill the cooler with water until
2. Then retighten the vent plug. Then carry out a pressure test to check that the cooling water
After conversion work
You must ensure that a proper seal is in place between the enclosure and the cooler and/or
between the enclosure and the cover.
The machine is not operated immediately
If the machine is not subsequently commissioned, make sure there is corrosion and frost
protection.
SIMOTICS FD 1LN1
Operating Instructions 01/2019
composition. Also consider the pressure load and compatibility with the materials from
which the cooler is made.
result of the heat-dependent height increase of the machine (thermal expansion).
excessive stress or strain or vibration loads. If possible, arrange the pipes so that the cooler
can be removed when the machine has been fully assembled. The amount of space
required to do this is shown in the dimension drawing.
and foreign bodies.
all the air inside the cooler is expelled.
NOTICE
Machine overheating
If air is in the cooling system, the machine will not be cooled properly. The machine
overheats. This can result in material damage or even a total loss.
● Make sure that there is no air in the cooling system.
supply has no leaks.
Do not exceed the maximum test pressure. The maximum test pressure is stamped on the
cooler type plate or is specified in the cooler operating instructions.
5.5 Connecting the cooling water supply
Assembly
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