37
Service parameters
12.3
Wartungseinstellungen für den Mischerkreis:
Para-
Function
Parameter description
Setting
Default
meter
range
value
S2.15
S2.16
S2.19
S2.20
BOILER CIRCULATION
PUMP - SWITCH-OFF
DELAY (SECONDS)
Setting of delayed circulation pump
switch-off when there is no require-
ment for heating.
30 ÷ 900
seconds
300
BOILER CIRCULATION
PUMP - SHUTDOWN
DIFFERENCE
T2-T1 (°C)
This setting determines the difference
between sensors T2 and T1 which shuts
down circular pump of the boiler.
2.0 ÷ 8.0 °C
3.0
INITIAL VALVE
MOVEMENT FROM
OPEN POSITION
(SECONDS)
Setting of initial valve movement dura-
tion when moving from open position.
With this setting the valve is moved to
its control range and immediate con-
troller respond at startup of system.
0 ÷ 30 seconds
15
INITIAL VALVE
MOVEMENT FROM
CLOSED POSITION
(SECONDS)
Setting of initial valve movement dura-
tion when moving from closed position.
With this setting the valve is moved to
its control range and immediate con-
troller respond at startup of system.
0 ÷ 30 seconds
15
Parameters for heat source:
Para-
Function
Parameter description
Setting
Default
meter
range
value
S3.1
S3.2
S3.3
SYSTEM PROTECTION
IN HEATING MODE
- SENSOR T2
Setting of controller respond in case if T2
sensor is installed. If T2 temperature is
lower as paremeter S3.2, the controller
fully closes the valve. If T2 is higher as
parameter S3.3, the controller fully
opens the valve.
0 - Sensor T2 is not used for system pro-
tection.
1- Only minimal temperature is respec-
ted for system protection (parameter
S3.2).
2- Only maximal temperature is respected
for system protection (parameter S3.3).
3- Minimal and maximal temperature is
respected for system protection (para-
meter S3.2 in S3.3).
0- WITHOUT
1- TMIN
2- TMAX
3- TMIN IN
TMAX
3
MIN. SYSTEM
TEMPERATURE IN
HEATING MODE
Setting of minimal temperature at
which the controller fully closes the
valve.
0,0 ÷ 3,0
55 °C
MAX. SYSTEM
TEMPERATURE IN
HEATING MODE
Setting of maximal temperature at
which the controller fully opens the
valve.
0,0 ÷ 3,0
90 °C
Constant temperature controller
GB
