Ariston CLAS X - Page 16

Training manual CLAS X
Pag. 16 di 69
follows
BURNER
ignition
Flame detection
CONTROL
Spark Generator
and gas valve ON
Occurs after air pressure switch enabling
The check is made with heating return and
delivery probes.
ΔT del-ret and the delivery and backflow
temperatures of the rising speed are checks. The
pressure is checked by minimum pressure
switch.
WATER FLOW CHECK
The gas valve is supplied at the set power for
the Soft Ignition (adjustable from the control
panel with parameter 220).
Flame ionization if checked. (by the detection
electrode).
Display 5 P1 will indicate if there is no ignition
and there will be a second attempt with 100% of
the set power for the Soft Ignition , if it is
unsuccessful, it will be indicated by
5 P2 , the third attempt is carried out with 100%
of the set power for the Soft Ignition. If the third
attempt is unsuccessful block shutdown will
occur5 01 .
Safety time 8 sec.