RCF-230AD
2
Setpoint limitation
In parameters 34 and 35, it is possible to set the maximum allowed
setpoint increase and decrease respectively.
Example: If P35=5 and P34=3, the setpoint can be changed between
17°C and 25°C (see the picture below).
Example of setpoint limitation
Fan control
The fan can be controlled via RCF-230AD with the following modes:
Low speed, Medium speed, High speed, Auto. The current fan speed
in the Auto mode depends on the heating or cooling demand and the
settings for each speed.
When using automatic control, ”AUTO” is shown in the display.
The number of fan speed steps can be selected via parameter 30. If
the parameter is set to 1, the first fan speed step will be used for fan
control.
Via parameter 31, it is possible to set the fan to the lowest speed level
when Auto mode is selected. If this parameter is set to 1, the fan will
run in all operating modes except Off (unless mould protection is ac-
tive, in which case the fan will run in Off mode as well).
Manual control of the fan speed
By pressing the fan button, you change the fan speed according to
the sequence I
à
II
à
III
à
AUTO. When using manual control, ”MAN” is
shown in the display.
Indications
The display has the following indications:
HEAT Heating control
COOL Cooling control
The open window symbol is shown if this function has
been configured and a window is open.
OFF The controller does not heat or cool
On/Off button
By pressing the On/Off button, RCF-230AD will switch between Off
mode and Comfort/Economy mode.
Parameter list
It is possible to set different parameter values in a parameter list. The
parameter list is accessed by simultaneously holding the INCREASE and
DECREASE buttons depressed for about 5 seconds until the Service
symbol is displayed and then pressing the INCREASE button twice.
First the display will show parameter 1. Use the INCREASE and DE-
CREASE buttons to scroll between the parameters and press the On/Off
button to select the desired parameter. The parameter number will then
be replaced by the parameter value. The value can be changed using the
INCREASE and DECREASE buttons. If a button is held depressed the
value will start scrolling, first slowly and then with increasing speed.
To exit the parameter list and go back to the basic display, press the IN-
CREASE button until “EXIT” is shown (one step before parameter 1) and
press the On/Off button. You can also exit the parameter list by pressing
down the INCREASE and DECREASE buttons simultaneously.
Parameters
The following parameters can be changed in the parameter list:
Para-
meter
number
Description
FS
(factory
setting)
1
Control mode:
2=2-pipe system
3=4-pipe system
4=Electric heater
(not valid for this model)
3
2
Change-over mode:
0=Heating control, 1=Cooling control, 2=Au-
tomatic change-over depending on ana-
logue temperature sensor or digital input
2
3
Operating mode when activating digital
input 1:
0=Economy mode (occupancy)
1=Off mode (window)
0
4
Mould protection:
0=Not active
1=Active (fan never stops)
0
5
Neutral zone at Comfort mode (NZC). If the
neutral zone is 2 K, the heating setpoint is
equal to the setpoint minus 1 and the cool-
ing setpoint is equal to the setpoint plus 1.
2 K
6
Heating setpoint when unoccupied.
15°C
7
Cooling setpoint when unoccupied.
30°C
8
P-band for the room controller.
10 K
9
I-time for the room controller.
300 s
10
Not valid for this model
11
Switch off timer for Comfort mode.
0 min
12
Switch on delay for Comfort mode.
0 min
13
Sensor connected to AI1:
0=Internal sensor, 1=External room sensor
0
14
Sensor connected to UI1:
0=None, 1=Change-over digital, 2=Change-
over analogue
0
15
Not valid for this model
16
Output signal for actuator connected to
AO1:
0=0...10V, 1=2...10V, 2=10...2V, 3=10...0V
0
17
Output signal for actuator connected to
AO2:
0=0...10V, 1=2...10V, 2=10...2V, 3=10...0V
0
18
Not valid for this model
19
Not valid for this model
20
Not valid for this model
21
Not valid for this model
22
Time in hours between exercise of heating
actuator.
23
23
Time in hours between exercise of cooling
actuator.
23
24
Setpoint or actual value shown in the
display:
0=Actual, setpoint when changing the set-
point, 1=Actual, setpoint adjustment when
changing the setpoint, 2=Setpoint, 3=Only
the setpoint adjustment
2
25
Configuration of fan control:
0=No control, 1=The fan is controlled by the
heating requirement, 2=The fan is control-
led by the cooling requirement, 3=The fan
is controlled by the heating and cooling
requirement
When using an electric heater, this param-
eter should only be set to 1 or 3, or the
heater may be overheated.
3
26
Start signal in % of the controller output,
heating or cooling, for fan speed 1.
20 (5
when
using an
electric
heater)
27
Start signal in % of the controller output,
heating or cooling, for fan speed 2.
60