EN
Type
No.
Description
tS
1.9
Domestic Hot Water Modulation with Flow meter
tS
2.0
Maximum power domestic hot water
Minimum power heating/domestic hot water
tS
2.1
(premixed)
tS
2.2
Domestic hot water preheating enabling
tS
2.5
Internal parameter (no change)
tS
2.6
Zone Valve / Pump Relaunch Delay
Anti-legionella Function (Only hot water tank)
tS
2.9
-- = Disabled
tS
3.0
Maximum domestic hot water temperature
tS
3.5
Digital / analogue Pressure switch
tS
4.0
Modulating Pump Speed
tS
4.1
∆T Modulating pump delivery/Return
tS
4.7
System pump forcing (only in winter mode)
tS
4.8
INST Parameter set to default
In the event of a fault/malfunction the message "AL" will appear
on the display alternating with the alarm number eg. "AL 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
– as a precautionary measure, close the gas isolation valve.
Range
0 = Disabled
1 = Enabled
0 .. 100
0 .. 100
0 = OFF
1 = ON
-
0 .. 99
50 .. 80
35 .. 67
0 = water pressure switch
1 = water pressure transducer
2 = water pressure transducer (only
pressure displayed)
-- = No modulation
AU = Automatic 30 .. 100
10 .. 40
0 = Disabled
1 = Enabled
RESET
0 .. 1
Repair the fault and start-up the boiler again.
after having repaired the fault, when the alarm number
NOTE:
appears on the display together with the message RESET (see
figure), press the button
to start the appliance up again.
Fig. 29
U/M
Step
-
1
%
1
%
1
-
1
-
-
Min
1
-
1
°C
1
-
1
%
10
%
1
-
1
-
-
o
(
R
) for approximately 3 seconds
Default
1
100
0
0
0
1
--
60
0
AU
20
0
0
81