33
Alpha InTec² 20SE and 30SE - Commissioning
Parameter Feature Description Range
20 - 50 °C
(t0 + 5) + 85 °C
0 - 3
-
-
0 - 600 seconds
(10 sec steps)
0 - 840 seconds
(10 sec steps)
0 - 600 seconds
(10 sec steps)
0 - 2
0 - 1
0 - 4
-
Set 3
1 - 9
1 - A3
0 - 25
0 - 2
-
Defines the minimum flow temperature set point
Defines the maximum flow temperature set point
Establishes the switch-off method in DHW mode (if Alpha diverter
valve kit fitted) depending on the cylinder temperature
0 Cylinder heating on
Cylinder temp. = set point temp - 3°C
Cylinder heating off
Cylinder temp = set point temp
1 Cylinder heating on
Cylinder temp = set point temp - 2°C
Cylinder heating off
Cylinder = set point temp + 1°C
2 Cylinder heating on
Cylinder temp = set point - 10°C
Cylinder heating off
Cylinder temp = set point temp
3 Cylinder heating on
Cylinder temp = set point temp - 5°C
Cylinder heating off
Cylinder temp = set point temp
2 - 3 are recommended with solar cylinder
Not used on this boiler model
Not used on this boiler model
Adjustable anti-cycling period
Adjustable time period for the burner to ramp up to maximum
output in CH mode
Ignition response adjustment, ie underfloor type systems with
slow acting actuator valves will need a delay to prevent boiler
overheating occurring
Establishes the display lighting mode
0 Automatic - The display lights up during use and dims after 15
secs of inactivity. In the event of an anomaly the display flashes.
1 Low - The display is always lit with low intensity
2 High - The display is always lit with high intensity
'Summer' mode
0 - No information is displayed
1 - DHW active, the display shows the flow temperature
'Winter' mode
0 - The display shows the set value of the CH selector
1 - CH or DHW active, the display shows the flow temperature
and when not active the display shows the set value of the CH
selector
Defines the type of hydraulics in the boiler
0 = Boiler flow switch (not used on this model)
1 = Flow meter (not used on this model)
2 = System boiler
3 = Boost - pre-heat function (not used on this model)
4 = Flow meter and boost function (not used on this model)
Not used on this boiler model
Defines the type of pump in the boiler
Max. pump speed
Min. speed setting *Should not be below 5
Defines the automatic pump speed control mode (see Section 2.4)
0 PROPORTIONAL - ΔT = 0°C, pump head proportional to
heat output
5 - 25 CONSTANT ΔT - ΔT = 5 - 25°C, the pump speed is
controlled automatically to keep a
constant ΔT between heating flow and
return.
Defines the length of the flue
0 = < 4.5 m
1 = 4.5 - 9.0 m
2 = > 9.0 m
In the event of an alteration, anomaly 'E72' will be displayed and
fast calibration is required. See Section 5.13.
Not used on this bolier model
CH set point min.
temperature
CH set point max.
temperature
DHW thermostat
-
-
CH ignitions timer
CH ramp timer
CH ignition delay
from controls
request
Display lighting
Display information
Hydraulic model
-
Pump model
Max. pump speed
Min. pump speed
Automatic pump
speed control
Equivalent flue
length
-
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
A0
A1
A2
A3
A4
A5
F0
F1
Default
20
85
2
-
-
18
(180 secs)
18
(180 secs)
0
0
1
2
-
3
9*
5*
15
0
-
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