44
Service setting manual
ENG
Param-
eter
Parameter name
Parameter description
Setting
range
Default
setting
S2.11
MAX. FLOOR TEMPERA-
TURE
Setting of maximum floor temperature limitation by floor
heating.
Setting is active only if floor sensor is installed and parameter
S1.4=2 (for sensor T1) or S1.5=5 (for sensor T8).
10 ÷ 50 °C
25
S2.12
MINIMUM STAND-PIPE
TEMPERATURE IN
COOLING MODE
Setting of minimum stand-pipe temperature in cooling mode.
CAUTION! Too low stand-pipe temperature can cause dewing
of heating bodies and pipelines.
10 ÷ 20 °C
15
S2.13
SHIFT OF TEMPERA-
TURE, REQUIRED TO
ACTIVATE STAND-PIPE
CONTROL
Shift of calculated min. stand-pipe temperature by which the
mixing valve control will activate.
Negative values mean activation of mixing valve control by
lower calculated stan-pipe temperatures, positive values
mean activation of mixing valve control by higher calculated
stand-pipe temperatures.
-10 ÷ 10
°C
0
S2.14
LIMITATION OF TEMP.
DIFFERENCE BETWEEN
STAND AND RETURN
PIPE
Setting of maximal difference between stand-pipe and return-
pipe temperature. This way the highest power of heating
system is limited.
Limitation of difference between stand and return pipe is
activated with parameter S1.4=3 (for sensor T1) or S1.5=6
(for sensor T8).
3 ÷ 30 °C
10
S2.15
CONSTANT STAND-PIPE
TEMPERATURE
Selection of operation with constant stand-pipe temperature.
Setting range is 10 ÷ 140 °C.
CAUTION: This function deactivates weather compensated
control of mixing valve.
0- NO
1- YES
0
S2.16
CIRCULATION PUMP
SWITCH-OFF DELAY
Setting of circulation pump switch-off delay when there is no
requirement for heating.
0 ÷ 10 min
5
Service settings for the second heating circuit:
Param-
eter
Parameter name
Parameter description
Setting
range
Default
setting
S3.1
INFLUENCE OF ROOM
TEMPERAT. DEVIATION
Set the influence of room temperature deviation. Lower value
means lower influence, higher value means higher influence.
0,0 ÷ 3,0
1
S3.2
INFLUENCE OF ROOM
SENSOR T8
Setting of room sensor T8 influence on the operation of second
circuit.
1- automatic room sensor influence
- room sensor has no influence if room unit DD2+ is
connected
- room sensor has influence if room unit DD2+ isn't connected
2- room sensor has influence
3- room sensor has no influence
This setting has affect only if S1.5=1.
1- AUTO
2- YES
3- NO
1
S3.3
INFLUENCE OF DD2+
ROOM SENSOR
Setting of DD2+ room sensor influence on the operation of
first circuit.
1- influence has only room unit DD2+ controlling the first circuit
(coding switch on room unit S.3=OFF). It can be set on first,
second or both room units.
2- influence has only first room unit DD2+ (coding switch on
room unit S.4=OFF)
3- influence has only second room unit DD2+ (coding switch on
room unit S.4=ON)
5- room unit DD2+ has no influence
1- AUTO
2- 1. DD2+
3- 2. DD2+
4- 1. & 2.
DD2+
5- NO
1
