sauter equitherm EQJW245, Operating Manual

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EQJW245
Commissioning
more quickly (at a rate of
±
2 K within a scanning period) when the deviation of the
room temperature is diminishing than when it is increasing (at a rate of
±
1 K
within a scanning period). If the deviation of the room temperature is less than
0.25 K, the fl ow setpoint is not altered. The factory setting (20 minutes) usually
provides satisfactory results for residential buildings.
Open windows or other cooling or heating loads can infl uence control! Sudden
removal of these infl uences can lead to the value moving above or below the
room temperature in the opposite direction for short periods!
Correction to room temperature heating 1
The measured value for the room temperature is calibrated with the help of this
SERVice parameter. The value that was entered is added to the measured value
for the room temperature.
Correction to outdoor temperature
The measured value for the outdoor temperature is calibrated with the help of this
SERVice parameter. The value that was entered is added to the measured value
for the outdoor temperature.
Return temperature recording for heating 1
If a return temperature sensor is going to be used for heating 1 (T
RF1
), a value of
<> 0 must be assigned to this parameter. If maximum return temperature limiting
is to be carried out, a value of 1 must be assigned to SP13. A value of 2 must be
assigned to SP13 for maintaining the return temperature (i.e. minimum return
temperature limiting).
Correction to return temperature heating 1
The measured value for the return temperature is calibrated with the help of this
SERVice parameter. The value that was entered is added to the measured value
for the return temperature. If there are two return sensors (MOD3), this parameter
only affects the T
RF
of the heating circuit.
Proportional band PI control of fi nal control element 1
SERVice parameter 15 specifi es the proportional band (X
P
) of PI control for the
fl ow temperature in K
Reset time PI control of fi nal control element 1
SERVice Parameter 16 specifi es the proportional band (X
P
) of PI control for the
second control circuit in K.
Running time for fi nal control element 1 (V1)
Valves with a motorised actuator require a certain time to open or close fully,
which is known as the valve running time. The equitherm
®
EQJW245 is set to the
running time of the valve drive that is being used using this parameter. The valve
running time must be set correctly in order to achieve optimum control quality and
different protective functions.
SP11
SP12
SP13
SP14
SP15
SP16
SP17