Fujitsu Super High Power Series Design & Technical Manual page 61

• Room influence
HC1
750
– 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 the composite outdoor
temperature. This type of control requires proper adjustment of heating curve, as the control
does not take the room temperature into account for this adjustment.
• 1...99%: 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 into account possible heat inputs
and ensures a more accurate room temperature control. The influence of the difference is de-
fined as a percentage. The better the installation in the reference room (accurate room tem-
perature, correct installation location, etc.) the higher will be the value that can be set.
Example:
– Approximate 60%: The reference room is appropriate.
– Approximate 20%: The reference room is inappropriate.
NOTE: Activation of the function requires taking into account the following requirements:
• A room sensor must be connected.
• The "room influence" parameter must be set between 1 and 99.
• The reference room (where the room sensor is installed) must not contain ad-
• 100%: Control according to room temperature only
The flow temperature is adjusted according to the room temperature setpoint, the current
room temperature and its evolution. A slight increase in room temperature, for example, caus-
es an immediate drop in the flow temperature.
NOTE: Activation of the function requires taking into account the following requirements:
• A room sensor must be connected.
• The "room influence" parameter must be set 100.
• The reference room (where the room sensor is installed) must not contain ad-
3-4. Heating circuit 1 and 2 functions
Line
HC2
1050 Room influence
Simple control according to outdoor conditions*
Control according to outdoor conditions with room influence*
Control according to room temperature only
justed thermostatic valves. If present in the room, these values must be fully
open.
justed thermostatic valves. If present in the room, these values must be fully
open.
Function
Control type
- (03-17) -
3. Function table