40
MCR 24, 24/28 MI, 30/35 MI, 34/39 MI
08/06/06-300008460-001-B
2.4
Setting different parameters (with access code)
To get acces to the error memory, the acces code
12
must be
entered.
Adjustment must be done by a qualified professional.
**The character
-
is not displayed.
Modification of the factory parameters may be detrimental
to the functioning of the boiler.
Parameter
Description
Comments
Factory setting
24
24/28 MI
30/35 MI
34/39 MI
P17
Maximum ventilator speed
(Heating)
10-70
X 100 rpm
37
37
41
47
P18
Maximum ventilator speed (DHW) Do not modify
46
55
63
67
P19
Minimum ventilator speed
(DHW)
Do not modify
13
13
13
13
P20
Start up speed for the ventilator
Do not modify
25
25
28
30
P21
Setting the pump speed
0 = Part load
1 = Full load
0
P22
Operating time: Pump (Heating)
1 to 99 minutes
2
P23
Connection with the heat
recuperation unit
0 = No connection
1 = Connection
0
P24
Remote alarm
(Terminal X7)
0 = Stop "OFF" (Connectors 1 and 2 closed)
1 = Alarm messages (Connectors 1 and 3 closed)
2 = Operating light (Connectors 1 and 3 closed)
3 = External gas valve (Connectors 1 and 3
closed)
0
P25
The regulator includes legionella
protection function, that can be
actived
0 = Stop
1 = Start
2 = Automatic (After commissioning, the boiler will
operate once a week at 65°C for DHW)
1
0
0
0
P26
DHW cut-in temperature
2 to 15 °C
5
P27
Heat curve set point: Flow
temperature
0 to 60 °C
20
P28
Heat curve set point: Outside
temperature (Max)
0 to 30 °C
20
P29
Heat curve set point: Outside
temperature (Min)
-40 to 0 °C
-15**
P30
Boiler type
0 = MCR 1024
1 = MCR ... Combi (Heating only)
1
0
0
0
P31
Temperature, for which the
production of domestic hot water
is stopped, exceeded
0 to 20 °C
15
PdF (PdU)
Factory setting
Parameter
dF
X appears on the identification
plate; if this parameter is set as X, the factory
parameters will be reinstated
X
Parameter
dU
Y appears on the identification
plate; if this parameter is set as Y, the factory
parameters will be reinstated
Y
