36
settings - adjustment - problem identi cation menus
2 BOILER PARAMETER
2 1 Service code 222
Press +/- to select code 234 and press
MENU/OK
2 2 BOILER GENERAL SETTINGS
220Soft ignition from 0 to 90 see Gas Settings (pages 29 and 30)
221Zone Frost Temperature (Room Temperature) from 2 to 10
(°C)
only active when the BUS device is
connected
222NOT PRESENT
223NOT PRESENT
224NOT PRESENT
225Central Heating Start Delay 0= Disabled
1= 10 seconds
2= 90 seconds
3= 210 seconds
0 Active only with 2-zone p.c.b. (optional)
226NOT PRESENT
227NOT PRESENT
228Boiler version - NOT TO MODIFY
from 0 to 5
0 = combi (CLAS)
1 = Storage with NTC
2 = Storage with Thermostat
(CLAS SYSTEM)
3 - 4 - 5 = DO NOT USE
0
2
ONLY FOR SERVICE - To be used only in
substitution P.C.B.
2 3 CENTRAL HEATING PARAMETER PART 1
230Maximum Central Heating Aboslute power
from 0 to 99
ONLY FOR SERVICE - To be used only in
substitution P.C.B.
see Gas Settings (pages 29 and 30)
231Maximum Central Heating power
Adjustable heating
from 0 to 99
see Gas Settings (pages 29 and 30)
232NOT PRESENT
233NOT PRESENT
234NOT PRESENT
235Anti-cycling time mode 0 = Manual
1 = automatic
0 see Gas Settings (pages 29 and 30)
236Anti-cycling time
If 235 = 0
from 0 to 7 (minutes) 3
237Central Heating pump overrun from 0 to 15 (minutes)
o CO (continuos)
3
238Pump speed control 0 = Low speed
1 = High speed
2 = Modulating
2
239
Set Delta T Pump
from 10 to 30 (°C) 20 Parameter to set if Pump Speed control
(238) is set to modulating
∆T (fl ow - return) for circulation pump modulation
This parameter can be used to set the diff erence between the fl ow and return temperatures, which determines the
commutation between low and high circulation pump speed.
E.g.: param. = 20 if the Tfl ow - Tret > 20°C; the circulation pump will be activated at maximum speed.
If the Tfl ow - Tret < 20 - 2°C; the circulation pump will be activated at minimum speed.
The minimum wait time between speed changes is 5 minutes.
menu
sub-menu
parameter
Description range
factory
setting
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