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Siemens
RDG100.., RDG110.., RDG160T.. Basic Documentation
CE1P3181en
Building Technologies
Functions
2015-07-29
4.9 Fan
control
Different fan output signals are available depending on the thermostat type:
Control output
Product no.
2 On/Off
1-/3-speed fan
Modulating
fan
DC 0…10 V
Control type
selected via
RDG100, RDG100T,
RDG100T/H
Q1,Q2,Q3 (3)
P53
RDG110..
Q1,Q2,Q3 (3)
P53
RDG160T..
Q1,Q2,Q3 (3)
1)
Y50
(1)
1)
P53, DIP 4
( ) Number of outputs
1)
Selectable via P53 or DIP switch 4 on RDG160T..
The fan operates in automatic mode or at the selected speed with manual mode.
In automatic mode, the fan speed depends on the setpoint and the current room
temperature. When the room temperature reaches the setpoint, the control valve
closes and the fan switches off or stays at fan speed I (minimum fan speed) according
to the setting of parameters P15 and P60.
Factory setting for "Fan in the dead zone":
Fan speed OFF: P15 = 0, P60 = OFF.
Only one fan output at a time is on, either Q1, Q2 or Q3.
The type of the fan output (DC 0...10 V, 3-speed or 1-speed) can be set via
DIP switch 4, local HMI (P53).
If application is set via DIP switches and DIP 4 = Off:
DC 0...10 V fan (ECM) on Y50 is selected
Parameter P53 = 3 (ECM fan) cannot be modified
1-speed/3-speed fan output is not selectable
If application is set via DIP switches and DIP 4 = On
3-speed fan on Q1, Q2, Q3 is selected, parameter P53 = 2
1-speed fan (on Q1) can be selected via HMI (P53 = 1)
DC 0...10 V (ECM) fan output is not selectable
3-speed fan output is enabled only if the application has also been selected
Overview of fan
outputs
Selection fan output
on RDG160T..