17
6.2
Setting the heating setpoint
°
C
0
0
6
.
°
C
0
5
6
.
or
second press
set CH setpoint value in steps of 0.5°C
or
rst press
Ifnokeyispressedfor5sec,thesetvalueistakenasthenewheating
setpoint.
6.3
Setting the heating setpoint with an external
probe
If an external probe is connected (optional) and temperature control is
enabled (parameter 418=1),thedeliverytemperaturevalueisselected
automaticallybythesystem,whichquicklyalterstheambienttempera-
ture on the basis of variations in the outdoor temperature.
Modifying the
heating setpoint
°
C
5
-
°
C
5
or
or
The setpoint correction is in the range (-5 to +5°C).
With parameter 418= 0,theboilerworkswithaxedpoint.
6.4 Setting the DHW setpoint
°
C
507
.
°
C
017
.
or
rst press
or
second press
set DHW setpoint value in steps of 0.5°C
Ifnokeyispressedfor5sec,thesetvalueistakenasthenewDHWsetpoint.
6.5 Safety stop
Iffaultsariseduringignitionoroperation,theboilermakesa“SAFETY
STOP”.Thedisplayshowstheerrorcodeinquestion.Forthedetails,
refer to “3.13 Faults and reporting ”.
Reset function
Contact the local Technical Assistance Centre if the release attempts fail
to reactivate normal operation.
Res
10
A
6.6 Temporary switch-off
Intheeventoftemporaryabsences(weekends,shortbreaks,etc.)set
the status of the boiler to OFF.
Whiletheelectricalsupplyandthefuelsupplyremainactive,theboileris
protected by the systems:
heating anti-freeze: this function is activated if the temperature
measured by the flow sensor drops below 5°C. A heat request is gen-
eratedinthisphase,withburnerignitionattheminimumoutput(then
maintained until the delivery water temperature reaches 35°C); the
display shows AF1
DHW anti-freeze: this function is activated if the temperature meas-
ured by the domestic hot water probe drops below 5°C. A heat re-
questisgeneratedinthisphase,withburnerignitionattheminimum
output (then maintained until the delivery water temperature reaches
55°C); the display shows AF2
circulator anti-locking: The circulator activates every 24 hours of
stop for 30 seconds.
6.7 Switching o for lengthy periods
Iftheboilerisnotusedforalongtime,thefollowingoperationsmustbe
carried out
:
set the OFF status
set the system’s main switch to “off”
turn off the fuel and water taps of the heating and domestic hot water
system
.
In this case, the anti-freeze and anti-blocking systems are deactivated.
Drain the heating and domestic water system if there is any risk of freezing.
6.8 Keyboard lock function
To lock the keys
L co
°
C
508
.
+
>2 sec
press again
to unlock
Ifthereisafault,key2remainsactivetoallowthealarmtobereset.
6.9 Alarm history
The alarm history is active with parameter 701=1 (SERVICE).
Alarms can be viewed:
- infomenu(fromI039toI043),inchronologicalorder,fromthemostrecent
totheoldest,uptoamaximumof5
- onOT+remotecontrol,ifconnected.
Whenanalarmoccursseveraltimesinarow,itisstoredonlyonce.
Toresetthealarm,followtheinstructionsprovidedinparagraph
“6.5 Sa-
fety stop ”.
Res
6.10 FEEDER BOTTLE function
The Feeder Bottle function is used to block the value of the DHW set-
point,topreventanyonefromaccidentallymodifyingit.
Fromthemainscreen,afterhavingsetthedesiredDHWsetpointvalue,
act as follows:
L co
°
C
572
.
and
Todeactivatethisfunction,fromthemainpage:
1
2
3
°
C
572
.
°
C
572
.
L co
to deactivate “Loc” press again
press > 2 sec
press
and