Samson TROVIS 5757-3, Руководство по настройке

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8 KH 5757 EN
Functions and parameters
2.3 Maintaining the heat exchanger at a constant temperature
When the DHW tapping recognition is active, the actuator controls the hot water to the set
point temperature only when hot water is demanded. To guarantee that the temperature
reaches the set point W1 quickly when hot water is demanded again, the heat exchanger is
prevented from cooling down by the function
to maintain the heat exchanger at a constant
temperature : the hot water is kept at a temperature reduced by the set-back difference .
Depending on the configuration, the reduced set point applies after hot water has been
tapped until the next demand or while the heating period to maintain heat exchanger at con-
stant temperature (P12) is active.
Upon power supply failure, an active function is canceled. After the power supply is recon -
nected, hot water must be tapped to reactivate the function.
Functions WE Configuration
F01: DHW tapping recognition 1 F01 - 1
F09: Maintain heat exchanger at constant
temperature
0 F09 - 0: Time adjustable (P12)
F09 - 1: Continuous
Parameters WE Value range
P11: Set-back difference 8 K 0 to 30 K
P12: Heating period to maintain heat ex-
changer at constant temperature
24.0 h 0 to 25.5 h
Influence of the binary input BI1
If the binary input BI1 is not required for set point switchover, it is used to deactivate the func-
tion to maintain the heat exchanger at a constant temperature.
−
BI1 open: function to maintain heat exchanger at a constant temperature according to
configuration of F09.
− BI1 closed: function inactive
When the binary input BI1 is closed, an active function to maintain the heat exchanger at
a constant temperature is immediately terminated, even when the
Heating period to
maintain heat exchanger at constant temperature has not yet elapsed.
NOTICE !