Fujitsu Super High Power Series Design & Technical Manual page 71

• Room influence
– 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 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.
• 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. Thus the differences with the room
temperature are taken into account and the room temperature becomes more stable. The
influence of the difference is defined as a percentage. The better the installation in the refer-
ence room (accurate room temperature, 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-
3-5. Cooling circuit 1 functions
Line
928 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
- (03-27) -
3. Function table