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Building Technologies Division User Manual LMS14… CC1U7471en
6 The settings in detail 28.01.2015
Line no. Operating line
5731 DHW controlling element
No charging request
Charging pump
Diverting valve
DHW charging can take place with a charging pump or diverting valve and heat source
pump.
Note!
Functions DHW priority and Discharging protection are possible only when a
charging pump is used.
If there is demand for heat from the space, the valve is always driven to the Heating
position. If there is no demand for heat from the space (summer operation, ECO
functions, holidays), it is possible to select whether the valve in the DHW position shall
wait for the next DHW charging cycle, or whether it shall also be driven to the Heating
position.
No charging request
No DHW charging via DHW charging pump Q3/instantaneous water heater pump Q34.
Charging pump
DHW is charged via a pump.
Diverting valve
DHW is charged via a diverting valve.
Line no. Operating line
5732 Pump off change div valve
Pump off time: Set the time the pumps are deactivated when the diverting valve
switches over.
In the case of systems using a diverting valve (UV), the pumps can be deactivated
when changing from Heating mode to DHW mode, and vice versa. The pump off times
can be parameterized. Deactivation of the pumps can coincide with the actuation of the
diverting valve, or with a delay. The number of pumps affected by deactivation depends
on the type of hydraulic system.
Note!
Modulation and control of the burner are not affected!
Line no. Operating line
5733 Delay pump off
Delay with which the pumps are deactivated: Set the delay time for the pumps to be
deactivated after the diverting valve has switched over.
DHW controlling element
Pump off change div valve
Delay pump off
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