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INSTRUCTION

i

i

Read this instruction before installation 

and wiring of the product

ED-RU-DO

1

ED-RU-DO

Room unit for basic controller configuration or 

enduser control

ED-RU-DO 

 

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 

Display type 

 

Backlit LCD 

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 cablel

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

RS485 EXOline “A”

43 B

Brown

RS485 EXOline “B”

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.

Increase/Decrease buttons

Enables adjusting the setpoint up or down. The maximum permissable 

adjustment of the setpoint is configurable (factory setting ± 3°C).

Depending on the control mode, the setpoint buttons will adjust the
actual setpoint.

cascade, the extract air setpoint will be adjusted.

 

 

This product carries the CE-mark.  
More information is available at www.regincontrols.com.

Contact

AB Regin, Box 116, 428 22 Kållered, Sweden 

Tel: +46 31 720 02 00, Fax: +46 31 720 02 50

 

www.regincontrols.com, [email protected]

10498E

 

APR 21

EN

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