33
33
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
Id
Parameter
Parameter
Description
Range
Default
Personali-
zed value
t0
Central heating
set point min-
imum temper-
ature
Defines the minimum flow temperature.
20 ÷ 50 °C
25
t1
Central heating
set point max-
imum temper-
ature
Defines the maximum flow temperature.
(t0+5) ÷ 85
°C
85
t2
DHW thermostat
Establishes the switch-off method in DHW mode.
1 and 3
Correlated: the boiler switches off according to the temperature
set.
0 and 2
Fixed: the switch-off temperature is fixed at the maximum value
regardless of the value set on the control panel.
0 - 3
2
t3
Solar delay
timing
The boiler is set to switch-on immediately after a request. for DHW In the
case of coupling with a solar storage tank positioned upstream from the
boiler, it is possible to compensate the distance between the storage tank and
the boiler in order to allow the water to reach the boiler. Set the time neces-
sary to verify that the water is hot enough (see par. Solar panels coupling)
0 - 30 seconds
0
t4
Domestic hot
water priority
timing
In winter mode the boiler, at the end of a domestic hot water request, is
ready to switch to central heating mode if there is an active request. Timing
sets a time period in which the boiler waits before changing the operating
mode, in order to quickly and comfortably satisfy an additional request
for domestic hot water.
0 - 100 sec-
onds
(step 10 sec)
2
t5
Central heating
ignitions timer
The boiler has electronic timing, which prevents the burner from ignit-
ing too often in central heating mode
0 - 600 sec-
onds
(step 10 sec)
18
t6
Central heating
ramp timer
In the heating stage, the boiler performs an ignition ramp in order to reach
the maximum output set
0 - 840
seconds
(step 10 sec)
18
t7
CH ignition de-
lay from TA and
CR request
The boiler is set to switch-on immediately after a request. In the event of
particular systems (e.g. area systems with motorised thermostatic valves
etc.) it may be necessary to delay ignition
0 - 600 sec-
onds
(step 10 sec)
0
t8
Display lighting
Establishes the display lighting mode.
0 Automatic:
the display lights up during use and dims after 15 seconds
of inactivity. In the event of an anomaly the display flashes.
1 Low:
the display is always lit with low intensity
2 High:
the display is always lit with high intensity.
0 - 2
0
t9
Display
Establishes what the indicator displays 14 (Fig. 2-1).
"Summer" mode:
0: the indicator is always off
1: circulator active, it displays the flow temperature
pump off the indicator is off
"Winter" mode:
0: it always displays the value set on the central heating selector
1: circulator active, it displays the flow temperature
pump off always displays the value set on the CH selector
0 - 1
1
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