Afterheating - oventrop Regtronic RQ Installation And Operating Instructions For The Specialised Installer

3.3.3 Afterheating

Main menu / Afterheating
Adjustment channel Description
AH Afterheating activation / Afterheating
mode selection
Relay Relay selection
Sensor Sensor selection
Boiler max. Maximum afterheating temperature
T-AH on Afterheating switch-on temperature 20 ... 95 °C
∆T absolute
Afterheating mode Absolute switch-
off threshold
∆T relative
Afterheating mode Relative switch-
off threshold
back
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Adjustment range / selection Factory setting
Off, Absolute, Relative Off
R1, R3 system dependent
system dependent S3
85°C during
20 ... 95 °C
boiler afterheat-
ing
45 °C
5 K
3 ... 30 K
3 K
3 ... 30 K
The Afterheating function can be used to reheat the
upper store zone through a heat source, if necessary.
It works independently from the hot water heating
and can be activated by the user.
When the function has been activated, the corre-
sponding relay and the afterheating sensor have to
be allocated.
Maximum boiler temperature
The maximum boiler temperature Boiler max.
determines the highest temperature which can be
reached at full boiler capacity. That prevents the cal-
culation or adjustment of an afterheating temperature
that cannot be provided by the boiler.
For the afterheating, 2 afterheating modes are avail-
able:
Afterheating mode Absolute
As soon as the temperature at the allocated after-
heating sensor falls below the adjustable switch-on
temperature T -AH on, the afterheating is activated
and the allocated relay switches on. The store is then
heated up to an absolute store set temperature cal-
culated from the adjustable temperature difference
∆T absolute. When the store set temperature is
reached, the afterheating is deactivated and the al-
located relay switches off.
Afterheating mode Relative
For this afterheating mode, a relative switch-on tem-
perature depending on the current set temperature
T -HW set is used. As soon as the temperature at the
allocated afterheating sensor falls below the relative
switch-on temperature, the afterheating is activated
and the allocated relay is switched on.
The store is then heated up to a store set tempera-
ture which is by the adjustable temperature difference
∆T relative higher than the switch-on temperature
mentioned above. Afterwards, the afterheating is
deactivated and the allocated relay is switched off.