43
Service setting manual
ENG
Service settings for the first heating circuit:
Param-
eter
Parameter name
Parameter description
Setting
range
Default
setting
S2.1
INFLUENCE OF ROOM
TEMP. DEVIATION
Set the influence of room temperature deviation. Lower value
means lower influence, higher value means higher influence.
0,0 ÷ 3,0
1
S2.2
INFLUENCE OF ROOM
SENSOR T1 OR T8
Setting of room sensor T1 or T8 influence on the operation of
first 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 S1.4=1 (for sensor T1) or S1.5=4
(for sensor T8).
1- AUTO
2- YES
3- NO
1
S2.3
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.2=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
S2.4
PUMP OPERATION
MODE
Setting of pump operation mode. Settings have the follow-
ing meaning:
1- STAND. (circulation pump of mixing circuit - regular)
2- pump switches off, if requested room temperature is
reached (only direct circuit)
3- operation according to time program P1
4- operation according to time program P2
5- SEL. PROG. (operation according to selected time
program)
1- STAND-
ARD
2- SWITCH-
OFF
3- PROG.
P1
4- PROG.
P2
5- SE-
LECTED
PROGRAM
1
S2.5
MINIMUM STAND-PIPE
TEMPERATURE
Setting of minimum stand-pipe temperature limitation, when
heating is active.
10 ÷ 90 °C
20
S2.6
MAXIMUM STAND-PIPE
TEMPERATURE
Setting of maximum stand-pipe temperature limitation.
20 ÷ 150
°C
45- floor
85- radiat.
S2.7
STILL STAND OF MIXING
VALVE CONTROL
Setting of stand-pipe temperature deviation by which the mix-
ing valve control is in stand-by.
1,0 ÷ 3,0
°C
1
S2.8
MIXING VALVE P - CON-
STANT
Setting of mixing valve position correction intensity. Smaller
value means shorter movements, higher value means longer
mixing valve movements.
0,5 ÷ 2,0
1
S2.9
MIXING VALVE I - CON-
STANT
Setting of mixing valve control frequency - how often mixing
valve position is being controlled. Smaller value means low
frequency, higher value means higher frequency of mixing
valve corrections.
0,4 ÷ 2,5
1
S2.10
MIXING VALVE D - CON-
STANT
Sensitivity of mixing valve for stand-pipe temperature
changes. Smaller value means low sensitivity, higher value
means high sensitivity.
0,0 ÷ 2,5
1
