Weinmann & Schanz ACC30 Manual page 23

Para- Function
meter
S2.16 BOILER CIRCULA-
TION PUMP - SHUT-
DOWN DIFFER-
ENCE T2-T1 (°C)
S2.19 INITIAL VALVE
MOVEMENT FROM
OPEN POSITION
(SECONDS)
S2.20 INITIAL VALVE
MOVEMENT FROM
CLOSED POSITION
(SECONDS)
Parameters for heat source:
Para- Function
meter
SYSTEM PROTEC-
S3.1
TION IN HEATING
MODE - SENSOR
T2
MIN. SYSTEM
S3.2
TEMPERATURE IN
HEATING MODE
S3.3 MAX. SYSTEM
TEMPERATURE IN
HEATING MODE
S3.4 SYSTEM PROTEC-
TION IN COOLING
MODE - SENSOR
T2
S3.5 MIN.SYSTEM
TEMPERATURE IN
COOLING MODE
S3.6 MAX. SYSTEM
TEMPERATURE IN
COOLING MODE
Parameter description
This setting determines the difference between sen-
sors T2 and T1 which shuts down circular pump of the
boiler.
Setting of initial valve movement duration when mov-
ing from open position. With this setting the valve is
moved to its control range and immediate controller
respond at startup of system.
Setting of initial valve movement duration when mov-
ing from closed position. With this setting the valve is
moved to its control range and immediate controller
respond at startup of system.
Parameter description
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 protection.
1- Only minimal temperature is respected 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 (parameter S3.2 in S3.3).
Setting of minimal temperature at which the controller
fully closes the valve.
Setting of maximal temperature at which the controller
fully opens the valve.
Setting of controller respond in case if T2 sensor is
installed. If T2 temperature is lower as paremeter S3.5,
the controller fully closes the valve. If T2 is higher as
parameter S3.6, the controller fully opens the valve.
0 - Sensor T2 is not used for system protection.
1- Only minimal temperature is respected for system
protection (parameter S3.5).
2- Only maximal temperature is respected for system
protection (parameter S3.6).
3- Minimal and maximal temperature is respected for
system protection (parameter S3.5 in S3.6).
Setting of minimal temperature at which the controller
fully closes the valve.
Setting of maximal temperature at which the controller
fully opens the valve.
Setting range Default
value
2.0 ÷ 8.0 °C
3.0
0 ÷ 30 seconds
0 ÷ 30 seconds
Setting range Default
value
0- WITHOUT
1- TMIN
2- TMAX
3- TMIN IN TMAX
0,0 ÷ 3,0
55 °C
0,0 ÷ 3,0
90 °C
0- WITHOUT
1- TMIN
2- TMAX
3- TMIN IN TMAX
60 ÷ 160 °C
60 ÷ 160 °C
English 23
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15
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3
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