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TECHNICAL AREA
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 fl 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"
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
menu
sub-menu
parameter
description value
default
setings
menu
sub-menu
parameter
description value
default
setings
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
ESERVED FOR TECHNICAL ASSISTANCE - see
paragraph Combustion checking procedure
2. 8 RESET MENU’ 2
2. 8. 0 Reset Factory Settings Reset OK = yes
ESC = no
To reset all default parameter settings, press the OK
button
4 ZONE 1 PARAMETERS
4. 0 SETPOINT
4. 0. 2 T set Zone 1 from 35 to 82 (°C)
(high temperature)
70
from 20 to 45 (°C)
(low temperature)
25
To set only with Fixed Flow Temperaure (see 421)
4. 2 ZONE 1 SETTINGS
4. 2. 0 Zone 1 Temperature
range
0 = from 20 to
45°C
(low temperature)
1 = from 35 to 82°C
(high temperature)
1
4. 2. 1 Thermoregulation
To enabled
thermoregulation press
Auto button.
On the dispaly will
appear the symbol
AUTO
0 = Fixed Flow
T
emperature
1 = Basic
Thermoregulation
2 = Room T
emp
only
3 = Outdoor Temp.
only
4 = Room +
outdoor
Temp.
1
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