106
NOTE: the inside of the upper door of the
boiler panel has a label with the values
that have to be set for PAR 1 and PAR 2
(fig. 19).
3.3.2 Warning
Should the boiler operation not be optimal
but no alarm sets off, press the button
until info 70 and the warning code
associated to the ongoing event are
displayed.
Once optimal operation is restored, info 70
will display: “- -”.
Below is the table of warning codes:
PARAMETERS INSTALLER
EXPANSION CARD
PAR DESCRIPTION RANGE UNIT OF INC/DEC DEFAULT
MEASUREMENT UNIT SETTING
40 Number of expansion boards 0 ... 3 = 1 0
41 Mix valve stroke time 0 ... 199 10 sec. 1 12
42
Priority of D.H.W. over mixed zone
0 = Paralle = = 1
1 = Absolute
43 Floor drying 0 = No activated = = 0
1 = Curve A
2 = Curve B
3 = Curve A+B
44 Type of solar system 1 ... 8 = 1 1
45
∆
t solar collector pump 1 PAR 74 OEM - 1... 50 °C 1 8
46 Solar integration delay “--”, 0 ... 199 Min. 1 0
47 Tmin solar collector “--”, -30 ... 0 °C 1 - 10
48 Tmax solar collector “--”, 80 ... 199 °C 1 120
PARAMETERS RESTORATION
PAR DESCRIPTION RANGE UNIT OF INC/DEC DEFAULT
MEASUREMENT UNIT SETTING
49 * Reset default parameters -- , 1 = = =
(par 01 - par 02 = “-“)
* In case of difficulty in understanding the current setting or in case of an anomalous or
incomprehensible conduct of the boiler, we suggest to restore the initial values of the parameters
setting PAR 49 = 1 and the PAR 1 and PAR 2 as specified at point 3.3.1.
BOILER PAR 2
Instant with deviator valve 1
and flowmeter
Instant with deviator valve, 2
flowmeter and solar combination
D.H.W. tank with
deviator valve and boiler sensor 3
vers. T (LOW INERTIA)
On board D.H.W. tank with
deviator valve and D.H.W. sensor 4
(LOW INERTIA)
Remote D.H.W. tank with deviator
valve and D.H.W. thermostat 5
or heating only vers. T/R boiler
(LOW INERTIA)
On board D.H.W. tank with
double pump and D.H.W. sensor 6
vers. T/R boiler
(LOW INERTIA)
On board D.H.W. tank with
double pump and D.H.W.
thermostat vers. T/R boiler 8
(LOW INERTIA)
Only heating with
antifreeze sensor
9
(LOW INERTIA)
CODE DESCRIPTION
E0 Reduced capacity operation
(
∆
t between delivery and return
over 40°C)
E1 Shorted external sensor (SE)
E2 Preheating function active
E3 TBD
E4 TBD
E5 TBD
E6 TBD
E7 TBD
E8 TBD
E9 TBD
CASCADE CONNECTION PARAMETERS
When the unit is installed in sequence / cascade (modular
system with multiple generators) must be changed on the
first boiler and the other in succession of the following para-
meter INST:
PAR 15 = 0 for the first boiler (MASTER)
1 .... 7 for the other boilers (SLAVE)
(Avoid assigning the same number to SLAVE
boilers)
In addition, when the number of boilers in cascade is more
than two, configure the parameters OEM A1 of the MASTER
boiler.
To access the OEM parameters press simultaneously the
buttons ( and ) for 2 seconds. Entered in the INST level
again press simultaneously he buttons ( and ) for
another 2 seconds. At this point insert the access code for-
med by this sequence of INSTALLATOR BUTTONS:
“ + / - / < / > / < “.
Set the parameter:
PAR A1 = Number of cascade generators (3 ... 8)
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