- 76 -
Room In
fl
uence
Line Nr
Programming line
928
Room infl uence
When using a room temperature sensor there are
3 diff erent types of control to choose from.
Setting
Control Type
---%
Simple control according to outdoor conditions*
1...99%
Control according to outdoor conditions with
room infl uence*
100 %
Control according to room temperature only
* Requires the connection of an outdoor sensor.
Simple control according to outdoor conditions
The fl ow temperature is obtained from the composite
outdoor temperature on the basis of the cooling
characteristic. This type of control requires the cooling
curve to be properly adjusted, as the control does not take
the room temperature into account for this adjustment.
Control according to outdoor conditions with
room infl uence
The diff erence between the room temperature
and the setpoint value is measured and taken into
account for temperature control. This enables taking
into account possible heat inputs and ensures a
more even room temperature. Thus the diff erences
with the room temperature are taken into account
and the room temperature becomes more stable.
The infl uence of the diff erence is defi ned as a percentage.
The better the installation in the reference room (accurate
room temperature, correct installation location, etc.)
the higher will be the value that can be set.
Example
Approx 60 % : the reference room is appropriate.
Approx 20 % : the reference room is inappropriate.
Information
Activation of the function requires taking into account
the following requirements:
- A room sensor must imperatively be connected.
- The "room infl uence" parameter must be set
between 1 % and 99 %.
The reference room (where the room sensor is installed)
must not contain adjusted thermostatic valves. Any
thermostatic valves present in the rooms must be fully open.
Control according to room temperature only
The fl ow temperature is adjusted according to the room
temperature setpoint, the current room temperature and
its evolution. A slight increase in room temperature, for
example, causes an immediate drop in the fl ow temperature.
Information
Activation of the function requires taking into account
the following requirements:
- A room sensor must imperatively be connected.
- The "room infl uence" parameter must be set to 100 %.
The reference room (where the room sensor is installed)
must not contain adjusted thermostatic valves. Any
thermostatic valves present in the rooms must be fully open.
Room Temperature Limitation
Line Nr
Programming line
932
Room temperature limitation
The "room temperature limitation" function enables
shutting off the cooling circuit pump if the room
temperature falls below the adjusted room temperature
setpoint (with summer compensation line 920) by more
than the adjusted diff erential.
The cooling circuit pump is reinitiated as soon as the
room temperature rises again above the current room
temperature setpoint.
If the room temperature limitation function is active, no
cooling demand will be transmitted to production.
The function is deactivated if
• No room temperature sensor is available.
• "Room infl uence limit." = ---.
• "Room infl uence" (928) = --- (simple control according
to outdoor conditions).
Waterstage / Maintenance Manual / 2105 - EN
