Regin REGIO EEDO, Руководство пользователя, Страница: 34 / 108

Control functions
Figure 2-30 3-speed fan control behaviour in auto mode.
Figure 2-31 illustrates the 3-speed fan control behaviour in manual mode when the fan speed 1, 2, and 3
signals are configured on digital outputs 3, 4, and 5.
Figure 2-31 3-speed fan control behaviour in manual mode (fan speed 1, 2, or 3).
2.5.3 Fan boost
Fan boost is a control function that can be used to acknowledge to the person in the room that the fan is
started when the occupancy (on/off) button in the room unit is pressed, or when the controller detects
presence. This is useful when the initial heating or cooling demand is low (the difference between the room
temperature and setpoint is small), since the fan then typically runs at a low speed.
Another use case for the fan boost function is to temporarily run the fan at an increased speed to provide a
perceived cooling effect, until the cooling distribution from the cooling valve establishes.
The fan boost is achieved by the use of a separate fan boost controller that operates in parallel with the
temperature controller, and temporarily increases the fan speed for a configured period of time (the fan
boost time). P-band and I-time settings for the different controllers are located in the
Configuration ->
Controller settings pane in Application tool.
Heating demand Cooling demand
100%
Heating
setpoint
Cooling
setpoint
0%
Room temperature
Y1: Fan speed 1 signal
Y2: Fan speed 2 signal
Y3: Fan speed 3 signal
80%
60%
40%
20%
Demand
Active
DO3
DO4
DO5
Inactive
Active
Inactive
Active
Inactive
Active
Y1: Fan speed 1 signal
Y2: Fan speed 2 signal
Y3: Fan speed 3 signal
DO3
DO4
DO5
Time
Speed 2 Manual fan speed
currently selected Speed 1 Speed 3
Inactive
Active
Inactive
Active
Inactive
34 Regio Eedo manual, Rev. D