BA_OTE 3+4_Endkunde_EN_V03_20170726.docx
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15.3
Floor screed heating programme
1.
Starting the floor screed heating programme
The heating circuit pump is switched on at the start. The flow temperature is read
after 5 minutes. The measured value is stored as the start and end temperature set
value.
2.
Heating up phase
The flow set value increases in the heat up phase with a settable ramp up. The set
value is increased every hour, as long as the current value has reached the set value
within this hour. If the set value has not been reached, this will be increased by the
value set when the current value has reached the set value.
3.
Equilibrium phase
Once the set maximum temperature has been reached, the set value remains in the
equilibrium phase for the time set.
4.
Cooling off phase
After the equilibrium phase the flow temperature sinks with the set downwards
ramp until the set value of the original start value has been reached.
5.
Termination of the floor screed heat up programme
The heat up programme can be terminated manually at any time. It will be auto-
matically terminated once the stored start and end set temperatures have been
reached or after the set time program (04-068). At the latest, however, after 30
days (adjustable).
What to do if the power fails:
Heating up phase: If there is a power failure during the heat up phase, the programme
always restarts, the original start value is retained.
Equilibrium phase: If there is a power failure during the equilibrium phase, the maximum
temperature is kept and the outage-time added to the equilibrium phase.
Cooling off phase: If there is a power failure during the cooling off phase, the current flow
temperature is measured and from there onwards reduced on the set ramp down. Only
one heating circuit per control can be started to heat up the floor screed. The floor screed
heat up takes place via a ramp-up/ramp-down function with increasing and decreasing
flow temperature.
