CIAT COADIS LINE 900 Manual De Instrucciones página 31

The positioning of the hydraulic networks is crucial to the correct operation of the
system. Drain valves should therefore be placed at the appropriate points and in
sufficient number. In addition, strainers should be fitted, as well as drains at circuit
high points, balancing tees and shut-off valves on each coil and, if necessary,
discharge valves.
An efficient filtration system (recommended efficiency of 0.5 mm) should be fitted on
the supply water and return water lines.
The system must be flushed completely and filled with treated water to prevent the
build-up of scale or sludge in the circuit. When flushing the system, open the thermo
the coil:
There are two options:
1) Remove the servomotor and fit the cap, which will cause pressure to be applied to
the shaft, thereby opening the valve.
2) Request that the control valve opens via the controller.
There are two options:
1) If the power has not yet been switched on, the valve will be open by default.
2) If the control has already been powered up, remove the servomotor to release the
rod and open the valve.
Drain the coils during commissioning.
It is recommended to carry out a bacteriological analysis (detection of ferrobacteria,
bacteria producing H2S and reducing sulphates) and a chemical analysis (to avoid
problems with scaling and corrosion) of the water.
4
3
to prevent any sludge or impurities from entering
A A AB AB
B
AB A
B
EN
N 12.59C