Alpha Pro Tec 50 - Page 37

37
Alpha Pro Tec - Programming the Boiler PCB
Parameter Feature Description
80
15
60
Pro Tec 50, NG=131, LPG=129
Pro Tec 70, NG=130, LPG=128
Pro Tec 90, NG=137, LPG=128
Pro Tec 115, NG=140, LPG=138
Pro Tec 50, NG=22, LPG=21
Pro Tec 70, NG=24, LPG=22
Pro Tec 90, NG=24, LPG=23
Pro Tec 115, NG=24, LPG=23
75%
75%
1
46
0
3
DHW ow temp. (stat)
DHW ow temp. (NTC)
DHW off set point time
Max. fan speed
Min. fan speed
Min. pump speed
Pump speed during ignition
DHW sensor mode
Ignition fan speed
Display units
Not used
Not used
Not used
Not used
Temp. sampling time
P22
P23
P24
P25
P26
P27
P28
P29
P30
P31
P32
P33
P34
P35
P36
Adjustment Default value
Flow temp. during DHW function when using external thermostat.
Min. ow temp. during DHW function, this value is above DHW set
temp. P16.
Time to continue ring to avoid boiler cycling during DHW function
when set value is achieved.
Set the max. fan speed - boiler max. output power.
Set the min. fan speed - boiler min. output power.
Not used on these boiler models.
Not used on these boiler models.
Used to select the DHW sensor mode between sensor and On/Off
thermostat.
Fan speed during ignition function. Note: Do not adjust this
parameter.
Display units - imperial or metric.
Time between temp. sampling intervals. Note: Do not adjust this
parameter.
30 - 90°C
0 - 30°C
0 - 255 sec
P26 - 255 RPM x 50
0 - P25 RPM x 50
1 = NTC sensor
17 = On/Off thermostat
0 - 114 RPM x 50
(range limited by P25 and P26)
0 - 127 = °C - kW
128 - 256 = °F - Btu/h
1 - 10 sec
Parameter Programming Menu