32
EN
Type
No.
Description
Range
U/M
Step
Default
PAR
24
External relay 2 function
0 = not used
1 = remote alarm NO
2 = remote alarm NC
3 = zone valve
4 = automatic filling
5 = external request
6 = recirculation pump
7 = zone valve with OT
8 = relaunch pump
-
-
0
PAR
25
Auxiliary TA function
0 = according to TA
1 = TA Antifreeze
2= domestic hot water disabled
-
1
0
PAR
26
Zone Valve / Pump Relaunch Delay
0 .. 99
Min
1
1
PAR
28
DHW activation delay with solar power
0 .. 30
Min
1
0
PAR
29
Anti-legionella Function (Only hot water tank)
-- = Disabled
50 .. 80
-
1
--
PAR
30
Maximum domestic hot water temperature
35 .. 67
°C
1
60
PAR
35
Digital / analogue Pressure switch
0 = water pressure switch
1 = water pressure transducer
2 = water pressure transducer (only pressure
displayed)
-
1
1
PAR
40
Modulating Pump Speed
-- = No modulation
AU = Automatic 30 .. 100
%
10
AU
PAR
41
∆T Modulating pump delivery/Return
10 .. 40
°C
1
20
PAR
47
System pump forcing (only in winter mode)
0 = Disabled
1 = Enabled
-
1
0
RESET
PAR
48
INST Parameter set to default
0 .. 1
-
-
0
In the event of a fault/malfunction the message
"ALL"
will appear
on the display with the alarm number eg.
"ALL 04"
(Domestic Hot
Water Sensor Fault).
Before repairing the fault:
– disconnect the appliance from the mains power by setting the
main switch to "OFF"
OFF
Fig. 40
– as a precautionary measure, close the gas isolation valve.
Repair the fault and start-up the boiler again.
NOTE:
after having repaired the fault, when the alarm number
appears on the display together with the message
d
(see
figure), press the button
y
for approximately 3 seconds to start
the appliance up again.
