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Depending on the calculated P-band and the primary return temperature setpoint, the valve control signal varies from the valve position limit VLV-01 ...100% as shown in the next figure.
Fig. 7. RWT Control
Table 6. Parameter List
Description
Value Range
Default Value
Unit
RWT-02: P-band return temperature control
1...20
10
K
VLV-01: valve position limit
0...100
100
%