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description
notes
SERVICE CODE
press the programming "+"
OK button
220
Soft ignition
see parag. Gas settings
224
Thermoregulation
228
Boiler version
- NOT TO MODIFY
ONLY FOR SERVICE - To be used only in substitution P.C.B.
231
Maximum Central Heating
power Adjustable heating
see parag. Gas settings
232
Domestic hot water maximum
RPM percentage
CANNOT BE MODIFIED
RESERVED FOR TECHNICAL ASSISTANCE Only if the gas or PCB is
changed see "gas setting" table
233
Minimum RPM percentage
CANNOT BE MODIFIED
RESERVED FOR TECHNICAL ASSISTANCE Only if the gas or PCB is
changed see "gas setting" table
234
Heating maximum RPM
percentage
CANNOT BE MODIFIED
RESERVED FOR TECHNICAL ASSISTANCE Only if the gas or PCB is
changed see "gas setting" table
236
Anti-cycling time
247
Central Heating Pressure
detection device
ONLY FOR SERVICE - To be used only in substitution P.C.B.
250
CONFORT FUNCTION
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.
252
Hot water fl ow delay
Anti "water hammering"
253
D.H.W. switch logic
254
Post-circulation and post-
ventilation after domestic hot
water is drawn
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 .
value
button to select 234 and press the "+"
from 0 to 99
0= Absente
1 = Present
from 0 to 5
from 0 to 99
from 0 to 99
from 0 to 99
from 0 to 99
from 0 to 7 (minutes)
0 = Temperature
Probes only
1 = Pressure switch
2 = Pressure sensor
0 = Disabled
1 = Time Based
(30 minute)
2 = Always active
from 5 to 200
(0.5 to 20 seconds)
0 = Anti-scale
(stop at > 67°C)
1 = At 4°C over set-
point
0 = OFF
1 = ON
settings - adjustment - problem identifi cation menus
description
notes
222
270
Test mode
Enabled also by pressing for 10 seconds the Reset button. This
function is deactivated automatically after 10 minutes, or when
60
the RESET button is pressed.
271
Air purge Function
0
420
Zone 1 Temperature range
0
421
Select Type of Thermoregulation 0 = Fixed Flow
422
Zone 1 Slope
°C
100
90
80
70
3
1
60
50
40
0
30
When an outdoor sensor is used, the boiler calculates the most
suitable delivery temperature, taking into account the outside
temperature and type of system.
5
The type of curve should be selected in correspondence with
the projected temperature of the system and the nature of the
dispersions present in the structure.
0
For high-temperature systems, one of the curves depicted
below may be chosen.
0
value
t
= Max Heating power
-
t
= Max DHW power
--
t
= Minimum power
--
Press MODE button to
active
0 = from 20 to 45°C
(low temperature)
1 = from 35 to 85°C
(high temperature)
Temperature
1 = Basic
Thermoregulation
3 = Outdoor
Temperature only
from 0_2 to 0_8
(low temp)
from 1_0 to 3_5
(hight temp)
3.5
3.0
2.5
2.0
10
5
0
-5
-10
-15
External temperature
1
0_5
1_5
1.5
1.2
1.0
0.8
0.6
0.4
0.2
-20 °C
47
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