- 22 -
USE
USEFUL ADVICE
be done very frequently, have the system
checked for leaks.
Water comes out of the pressure relief
valve
Check on the pressure gauge that the pres
-
sure in the central heating circuit is not
close to 3 bars. In this case, temperature
rise in the circuit can cause the pressure
relief valve to open. So that this does not
happen and to decrease the pressure to a
normal value, it is advisable to vent some of
the water in the appliance through the bleed
valves present in the radiators.
If before water should occasionally leak
from the boiler
Shut off the valves positioned under the
boiler on pag. 19 and call an Authorised
Service Centre Engineer.
In this case or in case of prob-
lems other than those men-
tioned here, switch off the boil-
er, as described in section
"Switching off" on page 18
and call a competent and re-
sponsible Service Engineer.
3.7 Displaying in INFO mode
The INFO mode allows the display of some
information on the boiler functioning status.
In case of malfunctioning of the boiler, it may
be useful to communicate such information
to the Authorised Service Centre Engineer
so that the causes can be understood.
In order to access the INFO mode, press
key 15 (Fig. 3.5) the index
J00
and the val-
ue of the parameter appear on the display
(Fig. 3.6).
Fig. 3.5
10
11
12
13 14
15
16
17
18
Fig. 3.6
To scroll the values press 16 (reduce) and
17 (increase) keys. In order to exit the
INFO mode, hold keys 13 and 17 (Fig. 3.5)
pressed at the same time.
The table summarises the possible values
visible in INFO mode.
Value visualised
Index
Primary circuit pressure
J00 + value
External temperature
J01 + value
K curve value configured in
settings
J02 + value
Offset climatic curve value
J03 + value
Calculated heating set
point (with climatic curve or
set configured)
J04 + value
Temperature NTC delivery
J05 + value
Temperature NTC return
J06 + value
Domestic set point
----
Temp. D.H.W. inlet (if fore
-
seen)
----
Temp. D.H.W. output
----
