BOILER
Instant with deviator valve
and flowmeter
Instant with deviator valve,
flowmeter and solar combination
D.H.W. tank with
deviator valve and boiler sensor
vers. T (LOW INERTIA)
On board D.H.W. tank with
deviator valve and D.H.W. sensor
(LOW INERTIA)
Remote D.H.W. tank with deviator
valve and D.H.W. thermostat
or heating only vers. T/R boiler
(LOW INERTIA)
On board D.H.W. tank with
double pump and D.H.W. sensor
vers. T/R boiler
(LOW INERTIA)
On board D.H.W. tank with
double pump and D.H.W.
thermostat vers. T/R boiler
(LOW INERTIA)
Only heating with
antifreeze sensor
(LOW INERTIA)
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
associat ed t o t he ongoing event ar e
displayed.
Once optimal operation is restored, info 70
will display: "- -".
Below is the table of warning codes:
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
106
PAR 2
1
EXPANSION CARD
2
PAR DESCRIPTION
40
Number of expansion boards
3
41
Mix valve stroke time
42
Priority of D.H.W. over mixed zone
43
Floor drying
4
5
44
Type of solar system
∆
45
t solar collector pump 1
46
Solar integration delay
47
Tmin solar collector
48
Tmax solar collector
6
PARAMETERS RESTORATION
PAR DESCRIPTION
8
49 * Reset default parameters
(par 01 - par 02 = "-")
9
* 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.
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 =
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 (
again press simultaneously he buttons (
another 2 seconds. At this point insert the access code for-
med by this sequence of INSTALLATOR BUTTONS:
" + / - / < / > / < ".
Set the parameter:
PAR A1 =
PARAMETERS INSTALLER
RANGE
0 ... 3
0 ... 199
0 = Paralle
1 = Absolute
0 = No activated
1 = Curve A
2 = Curve B
3 = Curve A+B
1 ... 8
PAR 74 OEM - 1... 50
"--", 0 ... 199
"--", -30 ... 0
"--", 80 ... 199
RANGE
-- , 1
0 for the first boiler (MASTER)
1 .... 7 for the other boilers (SLAVE)
(Avoid assigning the same number to SLAVE
boilers)
and
) for 2 seconds. Entered in the INST level
Number of cascade generators (3 ... 8)
UNIT OF
INC/DEC
DEFAULT
MEASUREMENT
UNIT
SETTING
=
1
0
10 sec.
1
12
=
=
1
=
=
0
=
1
1
°C
1
8
Min.
1
0
°C
1
- 10
°C
1
120
UNIT OF
INC/DEC
DEFAULT
MEASUREMENT
UNIT
SETTING
=
=
=
and
) for