Service 12 / Indication Descaling - Rational SCC Series Training Manual

Trouble shooting SCC
Steam generator scaled up; CDS display shows 9 red bars
Repeat descaling procedure
170

Service 12 / Indication descaling

Indication „Descaling of
steam generator necessary"
Is additionally Service 12
shown?
NO
Touch function key:
degree of scale is shown
Activate and run descaling pro-
gram. At the end of the program
the new ¿ lling volume is genera-
ted automatically.
NO
Only 2 to 3 red bars are
shown on ?
NO
Was the descaling
NO
procedure suf¿ cient?
(Visual check via level elec-
trode)
Edition 10-2008a
CDS-Sensor does not create
pulses
YES
Check CDS-Sensor, cable and
connector.
YES
Unit ready for work
Water supply not suf¿ cient:
- Water pressure too low
(below 50 kPa)
- Water ¿ lter soiled
YES
- CDS Sensor soiled
- Water intake pipe of steam
generator scaled up
(Pipe must be descaled separa-
tely)