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Idiomas disponibles
Idiomas disponibles
Function
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PH0
NO function active
PH1
PRE-HEATING function active
PH2
TOUCH & GO function active
PH3
PRE-HEATING SMART function active
PH1 PRE-HEATING function: set PH1 to activate the DHW pre-heating
function on the boiler. This function keeps the water in the domestic hot
water exchanger hot, to reduce standby times when a request is made.
The function is not active when the boiler is OFF.
PH2 TOUCH & GO function: if you do not want to keep PRE-HEA-
TING permanently active, and you want hot water immediately ready,
the domestic hot water can be pre-heated just a few moments before
meeting the request. This function allows you, by opening and closing
the tap, to activate the instantaneous pre-heating that prepares the hot
water for that request only.
PH3 PRE-HEATING SMART function: when this function is active,
post-circulation for the end of the heating request is enabled with the thre-
e-way valve positioned on DHW until one of the following conditions is met:
- DT (delivery - return probe) < 2 °C
- Post-circulation duration > 20 sec
- Return temperature > 65 °C
4.6
DHW special functions
Parameter 511 is used to activate special functions during the modu-
lation phase in DHW mode. These functions improve the boiler perfor-
mance in particularly hard operating conditions (such as very high inlet
water temperatures, very low flow rates, use in combination with solar
storage tanks).
0
No special function active (default value)
Application of a fl ow switch/fl owmeter start-up delay (parameter
1
510 - SERVICE)
In the event of switch-off due to overtemperature in DHW mode
2
(with a request in progress), the fan is kept at the minimum speed
(MIN) to reduce the restart standby time
3
Absolute DHW thermostats
4
Smart DHW anti-oscillation function
5
All four previous functions active
DHW DELAY function (1): activate this function to enable a delay, equal
to the set value of the parameter, on the activation of the pump and fan
when a DHW request is received.
SMART-FAN function (2): if this function is activated, the fan is kept at
the minimum speed (MIN) and is not switched off if the burner is OFF due
to DHW overtemperature (with a request still active).
ABSOLUTE THERMOSTATS function (3): if this function is activated,
the DHW thermostats for burner ON/OFF switch from the relative value
to the absolute one.
ANTI-OSCILLATION function (4): if this function is activated, the boiler
self-configures to ABSOLUTE THERMOSTATS if the burner is OFF due
to DHW overtemperature (with a request in progress). When the burner
is OFF, the fan is kept at the minimum speed. The thermostats go back
to being "correlated" at the end of the request.
4.7
Screed heater function
With the system at a low temperature, the "screed heater" function
enables a heating request with a delivery setpoint of 20°C in the initial
zone. This value is then gradually increased as shown in the table below.
DAY
TIME
1
0
6
12
18
2
0
12
3
0
4
0
5
0
6
0
7
0
This function lasts 168 hours (7 days).
To activate the screed heater function:
set the boiler to OFF (because this function is only available in this mode
set 409 = 1, the display will show
---
Once activated, this function takes maximum priority. If there is a power
failure and reset, the function will resume from the point where it was
interrupted.
TEMPERATURE
20°C
22°C
24°C
26°C
28°C
30°C
32°C
35°C
35°C
30°C
25°C
R c S
The screed heater function can be disabled by bringing the boiler to a
condition other than OFF, or by setting 409 = 0.
In item I001 of the INFO menu, you can see the number of hours that
have elapsed since the function was activated.
4.8
Combustion analysis
b
Checks to verify the adjustments of the CO
to the reference parameters (given in the tables below) must be
carried out with the casing closed. If the casing is opened, the
values will have to be reduced by about 0.2% depending on the
installation configuration (the type and length of the discharge and
suction pipes).
Combustion control sequence
1
---
The probe for the fumes analysis must
be inserted until it reaches the stop
---
+
> 2 sec
The displayed value refers to the number of revolutions divided by 100.
Set the maximum rpm value
7
0 0
.
The boiler works at the maximum power level.
Check the analyser to ensure the max CO
indication given in the table. If the value is different, calibrate the gas
valve - see paragraph "4.10 Gas valve calibration".
METHANE GAS
CO
max
2
(G20)
25C
30C
Set the minimum rpm value
6
0 1
.
The boiler works at the minimum power level.
Check the analyser to ensure the min CO
indication given in the table. If the value is different, calibrate the gas
valve - see paragraph "4.10 Gas valve calibration".
METHANE GAS
CO
min
2
(G20)
25C
30C
Make sure the fl ue gas temperature value, read in info I008 (see "5.3
INFO menu
"), is coherent (with a tolerance ± 5°C) with the value
measured by the analyser.
28
values in relation
2
4
Co
0 0 6
.
0 0 6
.
MAX
rpm
7
0 0
.
confirm
value complies with the
2
LPG
(G31)
9,0
10,0
9,0
10,0
6
0 1
.
MIN
rpm
confirm
value complies with the
2
LPG
(G31)
9,0
10,0
9,0
10,0
3
2
fan speed
in CH
MAX
or
MIN
%
%
%
%
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