Fujitsu Waterstage WS G140DC6 Series Maintenance Document page 58

Split system (Single phase and 3-phase type)
Changing the input value makes the respective
heating periods shorter or longer.
If the value is increased: changeover to
-
heating mode is advanced; changeover to ECO is
delayed.
If the value is decreased: changeover to
-
heating mode is delayed; changeover to ECO is
advanced.
Flow temperature setpoint
Line no.
HC1 HC2
740 1040
741 1041
This limitation allows to define a range for the orders
to start. When instructed to start the heating circuit
reaches the threshold,
Room Influence
Line no.
HC1 HC2
750 1050
Control types:
When using a room temperature sensor there are 3
different types of control to choose from.
SETTING
- - - %
1...99 %
100 %
* Requires the connection of an outdoor sensor
Simple control according to outdoor conditions
The flow temperature is computed via the heating
curve according to
temperature.
This type of control requires proper adjustment of the
heating curve, as the control does not take the room
temperature into account for this adjustment.
Control according to outdoor conditions with
room influence
The difference between the room temperature and
the setpoint value is measured and taken into
account for temperature control. This enables taking
58
Comfort heating setpoint (710)
24-Hour heating limit (732)
Changeover temperature (710 – 732)
Heating off
Differential (Fixed)
Changeover temperature Heating on
Programming line
Flow temp setpoint min (for fan convectors)
Flow temp setpoint max
this record remains
Programming line
Room influence
CONTROL TYPE
Simple control according to outdoor conditions *
Control according to outdoor conditions with room influence *
Control according to room temperature only
the averaged outdoor
22°C
-3°C
=19°C
-1°C
=18°C
Information:
This function will not work in "Continuous Comfort
temperature" mode.
The display will show "ECO".
The outdoor temperature is attenuated to take the
building's thermal dynamics into account.
permanently at the maximum or minimum, even if the
heat demand continues to increase or decrease.
into account possible heat inputs and ensures a more
even room temperature.
The influence of the difference is defined 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:
Maintenance Document 1544-1