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Screen 7
Manual set-up of feed water
The level transmitter tted into the equipment has an employment eld dened with the
specication of each steam generator. It is essential that the employment eld of the transmitter is
the same of the one setted to the controller.
There are different control typologies:
1) ON-OFF operation level (Sensilevel) and ON-OFF feedwater valve
Select the next screen by setting the “automatic-manual” key in “manual” position
To activate the valve opening, push the button + (ON), and press – (OFF) to shut it.
During the manual operating, when the functioning level is achieved is displayed on the screen but it doesn’t
control the valve shutting. The isolated valve condition is achieved by pressing the – (OFF) button.
The open valve condition is identiable on the screen by the valve’s image fully pointed out and the notice
“feed water” in reverse.
In any case, manual operation is provided with block (latching) alarm devices. These alarms will close the
valve while on the screen will be displayed the typology of the anomaly and the lighting of the warning light.
For latching alarms, before opening the valve it is necessary to eliminate the cause of the alarm, then push
the button in reset blocks front panel.
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