EbV Product documentation THETA NORM/UNIT
8-28
8.2.2.3 Room Controller Heating Circuit
At this setting the heating circuit concerned can be controlled through a room
controller. This requires a room device THETA RS with room control function. The
room controller directly determines the required flow setpoint and transmits this
information to the central device.
At this setting the control of the respective heating circuit is completely room-guided.
Weather-dependence is inactive. However, the parameters for weather response
(heating characteristic curve settings) can still be entered.
8.2.2.4 Heating curve adaptation heating circuit
Function: Adaptation means the automatic adjustment of the heating curve slope to the
building characteristics under continuous measurement of outside, flow and room
temperatures. The determination of the optimum heating curve requires prolonged
heating periods so that a balance between heat supply and heat reduction is
ensured. The adaptation causes a targeted readjustment of the heating curve,
depending on the control deviation.
The value found through adaptation is not stored. The larger the deviations, the
larger the correction steps; the smaller the deviations, the smaller the corrections.
The heating curve is newly adapted whenever the heating curve slope parameter
setting is changed at a later stage.
An active adaptation is indicated by a flashing symbol in the user menu.
Adaptation is a useful tool for determining the correct building characteristic curve.
We recommend switching off this parameter once the adaptation is complete, and to
set manually, in the user menu, the slope value found though adaptation.
NOTE: An adaptation is allowed under the following conditions:
• Room sensor switched on (Room influence = ON)
• Heating curve adaptation switched on
• Heating operating under any automatic program
• Continuous heating
• Mean outside temperatures below 16°C
• Room temperature deviations from present setpoint > ±1K.
The adaptation will not be initiated:
• if the heating circuit is switched off
• during the optimization phases
• if heating curve adaptation is switched off
• if the room sensor is disabled (Room influence = OFF)
• if the outdoors sensor is defective or disconnected
• during reduced operation under any automatic program
• during permanently reduced operation
• when the boiler maximum temperature is reached
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