oventrop Regtronic RH HT, Installation And Operating Instructions For The Specialised Installer, Page: 33 / 56

Installation
33
Commissioning
Settings
Tr
oubleshooting
Data comm
unication
en
Circulation
The Circulation function can be used for controlling a circulation pump.
For the control logic, 5 different modes are available:
• Demand
• Thermal
• Timer
• Timer
• T Timer
If one of the variants is selected, the corresponding adjustment channels will ap-
pear.
Demand
The switch-on condition is fulfilled, if a demand is being activated for the adjusted
switch-on delay (contact closed). The switch-on condition is then met for the
adjusted (minimum) runtime. The condition will then be ignored for the adjusted
break time, the circulation will be in the break status.
Thermal
The temperature at the allocated sensor is monitored. The allocated relay switch-
es on when the temperature falls below the adjusted switch-on temperature. If
the temperature exceeds the switch-off temperature, the relay switches off.
Relay
Sensor
Circulation
Timer
The relay is switched on during the adjusted time frames, outside of them it
switches off. For information on how to adjust the timer, see below.
Demand + Timer
The relay operates when the switch-on conditions of both above mentioned var-
iants are fulfilled.
Thermal + Timer
The relay operates when the switch-on conditions of both above mentioned var-
iants are fulfilled.
Note:
If the flow switch is connected to the input S1 … S8, continuity must be
detected for at least 5 s for the controller to react, 1s if the flow switch
is connected to an impulse input (S9).
When the Timer, Demand + Timer or Therm. + Timer variant is activated, a
timer is indicated in which time frames for the function can be adjusted.
Note:
For information on timer adjustment see page 10.