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34
AST 14 C 255/00
Parameter display
(read-only)
Press the “info” key several times to scroll in sequence the values of the parameters for
displaying purposes only (from P30 to P50), such as the temperatures detected by the
connected probes.
To quit the displaying function, simply press “reset”. The start page will be displayed
anyway 60 seconds after the last time the key has been pressed.
TECHNICAL parameter list
Parameter Range
Default
values
Notes
P0
Boiler output selection
(selection of "current-
output" curve)
0 ÷ 5
1
0 = 24 kW LPG
1 = 24 kW natural gas
2 = 28 kW LPG
3 = 28 kW natural gas
4 = 32 kW LPG
5 = 32 kW natural gas
P2
Selection of pressure control type
0 ÷ 1
0
0 = pressure transducer
1 = low water pressure
switch
P3
Boiler type selection
1 ÷ 3
1
1 = combined
instantaneous
2 = heating only
3 = with water heater
P6
Ignition output setting
0 to 100 %
0
0 = operation with ignition
ramp;
≠
0, ignition output identical
to set output
P7
CH maximum output
10 to 100 %
100
10 = minimum output
100 = maximum output
P10
Heating curve
0 ÷ 3
(1=100)
1.5
With external probe:
Low temp. from 0 to 0.8
High temp. from 1 to 3
Without external probe:
Value < 1, reduced range
for low temperature, from
35° to 45°C.
P11
Heating thermostat timing
0 to 10 min
4
P12
CH output rising ramp timing
0 to 10 min
1
P13
Timer for CH post-circulation, anti-freeze
and flue cleaning function
30 to 180 s
30
P14
"Solar" DHW thermostat setting
0 ÷ 1
0
0 = normal
1 = solar
P15
Water hammer protection delay,
configurable
0 to 10 s
0
P16
Ambient thermostat reading delay / OT
0 to 199 s
0
P17
Multifunction relay setting
0 ÷ 3
0
0 = shut-down and fault
1 = remote relay/TA1
2 = solar relay
3 = request TA2
