TECHNICAL AREA
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2. 4. 1 Warning Pressure from 4 to 8
(0,x bar)
6
if the pressure falls down to the pre-set alert
value, the boiler will signal a malfunction warning
(1P41P4) for insufcient circulation; the request for re-
establishing the correct value will appear on the
display.
Warning 1P4
Filling Needed
ALERT
2. 4. 2 < Not Available>
2. 4. 3 Post-ventilation CH 0 = OFF
1 = ON
0
2. 4. 4 Boost Time from 0 to 60
(minutes)
16
only enabled with Room Thermostat on/off and
temperature adjustment activated (parameter
421 or 521 or 621 on 01 = Basic temperature
adjustment)
This parameter can be used to set the delay
time before the automatic increase in ow
temperature, in steps of 4°C (max. 12°C). If the
value of this parameter remains at 00 the
function is not activated.
2. 4. 5 Max PWM Pump from 75 to 100 100
2. 4. 6 Min PWM Pump from 40 to 100 75
2. 4. 7 CHPressure detection
device
0 = Temperature
Probes only
1 = Pressure switch
2 = Pressure
sensor
2
ONLY FOR SERVICE - To be used only in
substitution P.C.B.
2. 4. 8 < Not Available>
2. 4. 9 External temperature
correction
from -3 to +3 0
Only active with external sensor connected
2. 5 DOMESTIC HOT WATER
2. 5. 0 COMFORT Function 0 = Disabled
1 = Time Based
(30 minutes)
2 = Always active
0
The “COMFORT” function of the appliance can be used
to increase the comfort level of the user when drawing
hot water.
This function keeps the secondary exchanger hot
during periods of boiler inactivity; this increases the
initial heat status of the water drawn, as the water is
delivered at a higher temperature.
When the function is enabled the text COMFORT
appears on the display.
Note: this function can be activated or deactivated by
the user as well - consult the User’s Manual.
2. 5. 1 Comfort Anti-cycling
Time
from 0 to 120
minutes
0
2. 5. 2 DHW start Delay from 5 to 200
(0.5 to 20 seconds)
5
Anti "water hammering"
menu
sub-menu
parameter
description value
default
setings
menu
sub-menu
parameter
description value
default
setings
2. 5. 3 D.H.W. switch Off logic 0 = Anti-scale
(stop at > 67°C)
1 = At 4°C over
set-point
0
2. 5. 4 DHW Post Cooling
Post-circulation and
post-ventilation after
domestic hot water is
drawn
0 = OFF
1 = ON
0
OFF = 3 minutes post-circulation and post-
ventilation after domestic hot water draw-off if the
boiler temperature measured requires it.
ON = always on for 3 minutes post-circulation and
post-ventilation after domestic hot water draw-off.
2. 5. 5 Delay start in CH after
D.H.W. request
from 0 to 30
(minutes)
0
2. 6 BOILER MANUAL SETTINGS
2. 6. 0 Manual mode
activation
0 = OFF
1 = ON
0
2. 6. 1 Boiler pump control 0 = OFF
1 = ON
0
2. 6. 2 Fan control 0 = OFF
1 = ON
0
2. 6. 3 Diverter valve control 0 = DHW
1 = CH
0
2. 7 TEST & UTILITIES
2. 7. 0 Test mode 0 = OFF
1 = ON
0
Press the programming key b
and press OK.
The boiler is forced to the maximum heating
power.
Turning the encoder allows for selecting the
D.H.W. maximum or minimum power operating
mode
It is possible to activate the Cleaning Function
(Chimney active) by pressing the Reset button for
10 seconds.
2. 7. 1 Air-purge Function 0 = OFF
1 = ON
Press the programming key b
and press OK.
The Deaeration Cycle can be activated by
pressing the MODE button for 5 seconds.
2. 7. 2 Automatic Calibration 0 = OFF
1 = ON
RESERVED FOR TECHNICAL ASSISTANCE - see
paragraph Combustion checking procedure
2. 7. 4 Floor drying cycle 0 = Off
1 = Functional
Heating
2 = Curing Heating
3 = Functional
Heating + Curing
Heating
4 = Curing Heating
+ Functional
Heating
5 = Manual
0
2. 7. 5 Floor drying Flow Set
Point Temperature
form 25 to 60 °C 40
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