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Service settings manual
35
HEAT METERING PARAMETERS
Tee procedure for setting function parameters is tee same as for service
parameters (see page 28).
Group W contains parameters to set the solar heat metering.
Para-
meter
Function
Parameter description
Setting range Default
value
S3.10
MIN. PWM / 0-10 V FOR
SOLAR PUMP R3
Minimum speed rate for the R3 pump is set. This setting is
only valid for the speed control of high efficiency circulation
pump.
20 ÷ 50 %
20
S3.11
MAX. PWM / 0-10 V FOR
SOLAR PUMP R3
Maximum rotation rate for the R3 pump is set. This setting is
only valid for the speed control of high efficiency circulation
pump.
60 ÷100 %
100
S3.13 BOILER CIRCULATION
PUMP - TIME OF BOILER
TEMPERATURE RISE
This function is used to control the solid fuel boiler return-pipe
temperature if there is no sensor installed in the storage tank.
In setted time controller monitors boiler temperature rise of 2 °
C. If there is a rise of 2 °C detected the boiler circulation
pump is activated for a setted time.
30 ÷ 900 s
300
S3.14 BOILER CIRCULATION
PUMP - RUNNING PERIOD
Setting of runnig period for boiler circulation pump if a boiler
temperature rise of 2 °C is detected. Circulation pump is
running until there is a temperature difference between boiler
and boiler return pipe.
30 ÷ 900 s
300
S3.15 ACTUATOR RUNNING TIME
Actuator running time, needed for a 90° turn. This data is
considered at delayed switchovers with valves.
1 ÷ 8 min
2
S3.16 FREQUENCY OF MIXING
VALVE CONTROL
Setting of mixing valve control frequency - how often mixing
valve position is being controlled. Smaller value means low
frequency, higher value means higher frequency.
15 ÷ 60 s
25
S3.17 MIXING VALVE P - CON-
STANT
Setting of mixing valve position correction intensity. Smaller
value means shorter movements, higher value means longer
movements.
0,5 ÷ 2,0
1
S3.18 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.
0,4 ÷ 2,5
1
S3.19 MIXING VALVE D - CON-
STANT
Sensitivity of mixing valve for stand-pipe temperature chan-
ges. Smaller value means low sensitivity, higher value means
high sensitivity.
0,0 ÷ 2,5
1
S3.9
TIME OF MAX. SPEED FOR
SOLAR PUMP R3
When the differential condition is fulfilled, the R3 runs at full
speed for a setted time.
5 ÷ 300 s
20
S3.8
MIN. SPEED (RPM) FOR
SOLAR PUMP R3
Minimum speed rate (RPM) for the R3 pump is set. The
setting is only valid for the speed control of a classic circulati-
on pump.
1- 40 %
2- 55 %
3- 70 %
1
S3.20 BACKLASH OF MIXING
VALVE
Setting of mixing valve running time to compensate the bac-
klash of actuator and mixing valve assembly, which occours
by change of rotation direction.
0 ÷ 5 s
1
S3.12
SWITCH-OFF PWM / 0-10 V
FOR SOLAR PUMP R3
A control signal is set, where the R3 pump will be switch-off.
This setting is only valid for high efficiency circulation pumps
with control line break detection.
0 ÷ 10 %
5
A1343_3
MJ/OD
06/2018
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