6 ROTEX control system ALPHA
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FA ROTEX ESU - 07/2008
The temperature can only be maintained if a heating output has been set for hot water at the standard tariff (see Chapter 3.10,
page 19).
6.6.9 Manual hot water recharging
3
Hot water, OEM max.
4
Hot water, HE max.
5
Hot water, operator
6
Hot water, absolute min.
7
Hot water, energy-saving
8
Switch hysteresis warm water
A
Off-peak tariff
B
Standard tariff
t
Time
T
s
Storage tank temperature
Fig. 6-18 Dependencies between hot water parameters
The flow temperature is maintained at the defined maximum boiler temperature during hot water recharging.
The storage tank is heated up to not more than the set warm water temperature.
The heating output for hot water recharging is based on the setting at the ST/OT contact.
The power company charges the warm water boost charge during the standard tariff period (ST-/OT contact
open) at an accordingly higher tariff.
• Set the rotary switch (II) to position
.
• Press the
and
keys simultaneously and perform hot water
recharging within 60 min.
During hot water recharging, the display alternates between the time
remaining for recharging and the flow temperature.
In the interests of safety, after 60 min the control automatically returns to the
previously selected operating mode. Hot water recharging may then have to
be restarted. To abort the function, all you have to do is press the
and
keys simultaneously.
Fig. 6-19 Activation of manual hot water recharging
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