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 opti-
mal 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.
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 parameter
INST:
PAR 15 =
0 for the first boiler (MASTER)
1 .... 7 for the other boilers (SLAVE)
(Avoid assigning the same number to SLAVE boi-
lers)
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 but-
tons (
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 formed by this
sequence of INSTALLATOR BUTTONS:
“ + / - / < / > / < “.
Set the parameter:
PAR A1 = Number of cascade generators (3 ... 8)
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)
