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Premature cancellation
of forced charging
Triggering forced
charging
Caution!
Specials
Siemens Building Technologies
HVAC Products
2
Slave pointer / B41 or B42
Forced charging takes place until, at buffer storage tank temperature sensor
B4 or B42, the value of the slave pointer is reached.
3
Maximum buffer storage tank charging temperature / B4
Forced charging takes place until, at buffer storage tank temperature sensor
B4, the maximum buffer storage tank charging temperature is reached.
4
Maximum buffer storage tank charging temperature / B41 or B42
Forced charging takes place until, at buffer storage tank temperature sensor
B4 or B42, the maximum buffer storage tank charging temperature is reached.
If the "Maximum switch-off temperature" (operating line 400
the slave pointer or the "Maximum buffer storage tank charging temperature", forced
charging will already be stopped when the "Maximum switch-off temperature" is
reached.
Forced charging will be resumed when the buffer storage tank temperature drops 5 K
below the value acquired by the sensor at the time forced charging was stopped.
Forced charging can be triggered via input E1 or the free time switch program.
Triggering via input E1
At input E1 (operating line 880), select setting 8 (forced buffer storage tank charging).
Forced charging will be triggered as soon as an appropriate signal is present at input E1.
If setting8 is not selected on operating line 880, forced buffer storage tank charging will
be carried out according to the free time switch program.
Triggering via the free time switch program
Forced charging will be triggered according to the switching times (operating lines 12
through 18) of the free time switch program.
The standard switching times of the free time switch program are at 06:00 and 22:00.
They must be matched to the low-tariff times.
In summer operation, forced charging is always switched off.
If the controller is used as a standalone controller (setting 0 on operating line 850),
forced charging will be switched off when pressing the "Standby" button.
If the controller is used within a system (setting on operating line 850
charging will be deactivated as soon as the "Central standby switch" (operating line
857) is set to 1 (ON).
Basic Documentation RVP540 / RVP550
Description of the heating engineer settings
) lies below the value of
EXP
≠
0), forced
191/348
CE1P2488en
18.10.2002
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