29
Function description
Heating circuit control
Brief description
The desired supply temperature results from the outside
temperature, the set room temperature, the operating mode
and heating curve. Setting the supply temperature of the
mixing valve circuit is regulated by a stepped opening or
closing of the mixing valve. The mixing valve actuator
control changes the actuating and pause times subject to
the control differential (control deviation).
Coding addresses which influence the heating circuit control
9F, A2 to F2.
For a description see coding 2.
Functions
Time program
The control unit switch changes in accordance with the
programmed times in the central heating operating program
between the central heating with normal room temperature
and central heating with reduced room temperature
operating modes.
Every operating mode has its own set level.
Outdoor temperature
A heating curve must be set up for matching the control
unit to the building and the heating system. The heating
curve charcteristics determine the supply temperature
subject to outside temperature. It is regulated in accordance
with the average outside temperature (composed of actual
and adjusted outside temperature).
See also adjusting the heating curve on page 19.
Room temperature
In conjunction with remote control and room temperature
sensor connection (observe coding address b0).
Compared to the outdoor temperature, the room
temperature has a greater influence in the desired supply
temperature. This influence may be changed via coding
address b2.
For a control difference (deviation from the actual value)
above 2 K room temperature, the influence can be further
increased (via coding address b6, quick heat-up/ quick
setback).
Quick heat-up:
The set room temperature must be raised by a minimum of
2 K by
Changing from central heating with reduced room
temperature to central heating with normal temperature
Start-up optimization
Quick heat-up will stop when the set room temperature has
been reached.
5285 967 v1.2
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