25
3.3
ACCESS TO INSTALLER'S
PARAMETERS
Only qualified persons should alter any of
the settings or parameters. Incorrect
adjustment would cause defective opera-
tion and damage the boiler and would
invalidate the warranty
.
For access to the installer's parameters,
press simultaneously the keys
and
or 5 seconds (3 fig. 12).
For example, the parameter PAR 23 is
shown on the display of the control panel in
the following way:
The par ame t er s scr oll f or war ds and
backwards with the key
and
and
the default parameters can be changed
with the keys
and
.
The standard display returns automatically
after 60 seconds, or by pressing one of the
control keys (2 fig. 12).
3.3.1
Replacement of PCB
Should the PCB be changed, PAR 1 and
PAR 2 will require resetting as per the fol-
lowing table.
GAS MODELS
PAR 1
-
1
-
2
-
-
3
-
4
-
5
-
6
-
7
-
8
-
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
-
16
-
17
-
18
-
19
METHANE
25/55
20
(G20)
30/55
21
PROPANE
25/55
22
(G31)
30/55
23
-
24
-
-
25
-
26
-
27
-
-
28
-
29
-
-
30
PARAMETERS INSTALLER
FAST CONFIGURATION
PAR DESCRIPTION
RANGE
UNIT OF
INC/DEC
DEFAULT
MEASUREMENT
UNIT
SETTING
1
Combustion configuration
-- = ND
=
=
“--”
1 ... 30
2
Hydraulic configuration
-- = ND
=
=
“--”
1 ... 6
1 = DHW + Recirc. pump
3
Timetable 2 programmer
2 = DHW
=
=
1
3 = Recirculation pump
4
Pressure transducer disabler
0 = Disabled
=
=
1
1 = Enabled
5
Assignment of auxiliary relay AUX
1 = Remote supply
=
=
1
(D.H.W. tank)
2 = Recirculation pump
6
Luminous bar indicating presence
0 = Disabled
=
=
1
of voltage
1 = Enabled
0 = Not assigned
7
Allocation of CR73 channels
1 = Circuit 1
=
=
1
2 = Circuits 1 and 2
8
Fan rpm Step ignition
0,0 ... 81
rpmx100 0,1da 0,1a19,9
0,0
1da 20 a 81
9
Long chimneys
0 ... 20
%
1
0
1 = CR 73
10 Remote control option setting
2 = CR 53
=
=
1
3 = RVS
11
Correction values external sensor
-5 ... +5
°C
1
0
-- = Always
12 Backlighting duration
1 = Never
sec. x 10
1
3
1 ... 199
0 = Minimum
13
Modulating pump speed
1 = Maximum
=
=
1
2 = Automatic
D.H.W. - HEATING
PAR DESCRIPTION
RANGE
UNIT OF
INC/DEC
DEFAULT
MEASUREMENT
UNIT
SETTING
20
D.H.W. minimum temperature
10 °C ... PAR 21
°C
1
30
21
D.H.W. maximum temperature
PAR 20 ... PAR 62 OEM
°C
1
60
22
Anti-legionella (only D.H.W. tank)
0 = Disabled
=
=
0
1 = Enabled
23
Boiler antifreeze
0 ... +10
°C
1
3
24
External sensor antifreeze
- 15 ... +5
°C
1
- 2
25
Climatic curve setting Zone 1
3 ... 40
=
1
20
26
Climatic curve setting Zone 2
3 ... 40
=
1
20
27
Minimum temperature Zone 1
PAR 64 OEM ... PAR 28
°C
1
20
28
Minimum temperature Zone 1
PAR 27 ... PAR 65 OEM
°C
1
80
29
Minimum temperature Zone 2
PAR 64 OEM ... PAR 30
°C
1
20
30
Maximum temperature Zone 2
PAR 29 ... PAR 65 OEM
°C
1
80
31
Maximum heating power
30 ... 100
%
1
100
32
C.H. pump over run time
0 ... 199
Sec.
10
30
33
Pump activation delay Zone 1
0 ... 199
10 sec.
1
1
34
Re-ignition delay
0 ... 10
Min.
1
3
35
Integrative sources activation threshold -- , 15 ... 80
°C
1
“--”
36
D.H.W. pump over run time
0 ... 199
Sec.
1
0
39
Saturation zone modulation
-- = Enabled
%
1
10
D.H.W. flowmeter
0 ... 100
