INSTRUCTION
i
Read this instruction before installation
and wiring of the product
ED-RU-FO
1
ED-RU-FO
Room unit for basic controller configuration or
enduser control
ED-RU-FO is an external room unit primarily intended for control of
an air handling unit, heating unit or room controller.
Perform basic controller configuration, or let the person in the room
control the room’s HVAC behaviour, via a connected ED-RU... room
unit. Choose from a large selection of room units that fit your specific
needs.
Technical data
Supply voltage
24 V AC/DC
Power consumption
25 mA
Protection class
IP20
Ambient humidity
Max. 90 % RH
Ambient temperature
0...50°C
Storage temperature
-20...+70°C
Mounting
On wall or device box
Communication
EXOline
Wiring
Based on the used controller there are two different wiring options:
1. The room unit can be connected to the same supply voltage as the
controller (G and G0). Communication then takes place via EXOline
and is connected to the serial ports (RS485), A and B.
24 V AC
42
43
10
11
A
B
G
G0
A
B
Figure 1 Wiring
2. They can also be connected via an EDSP-K3 cable to the display port.
B
A
G0
10 G
11
42
43
ED-RU-...
Ext
.
Disp.
EDSP-K3
Figure 2 Wiring with an EDSP-K3 cable
Terminal N and
designator
EDSP-K3 wire color
Descriptio
n
10 G
Black
24 V AC supply voltage input
11 G0
White
24 V AC voltage reference
42 A
Yellow
Output signal to controller
43 B
Brown
Input signal to controller
The On/Off button using Application tool
Regio Eedo/Ardo provides several options to manage controller state
changes, that is changes between a comfort and an energy-saving
operational mode. For example, state changes can be managed by:
– Pressing the occupancy button on the room unit to increase the
airflow.
– Detecting presence in the room via a CO
2
sensor or a motion
detector.
The On/Off button using E-tool
The function of the On/Off button can be configured using E tool.
Setting
Description
No function
Pressing the button has no effect.
On/Off
The button can be used to turn the
unit off or place it in auto mode
On/off/extended
running
The button can be used to turn the
unit off or to force it to run in normal
speed for a settable duration, after
which it will enter auto mode.
When pressing the On/Off button for 10 s, the air handling unit will
stop. At the next scheduled start-up it will then start and run in mode
AUTO.
A press of the button will start the unit, making it run at normal speed
for the duration set under “extended running” (factory setting 60 min.).
Thereafter, the unit will enter into auto mode.
The fan switch
Position
Explanation
0
Places the unit in off position
I
Places the unit in reduced speed
II and III
Places the unit in normal speed
AUTO
Places the unit in auto position
The On/Off button can only be used when the fan switch is in the auto
position. The operating modes are event controlled, meaning they can
be changed from the display of the Corrigo or using E tool
©
, regard-
less of whether the fan switch is in the off or manual position.
10260D
MA
Y 19
EN
