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INSTALLATION

OVERVIEW

  Installation 

The REHAU room unit is designed as an  electronic temperature con-
troller of warm water heating systems and serves to control electro-
thermal actuators or other electrical devices.

The maximum switching current indicated in the technical data 
must be observed! REHAU cannot accept any liability for any form of 
misuse.

The electrical installation must be carried out  in accordance to the 
current wiring regulations in force and must be in accordance with the 
connection plan.  Only approved certifi ed professionals may carry out 
the installation. Further more the installation is always to be carried 
out with the power supply disconnected.

Position the room unit such that it is not covered by curtains, pieces of 
furniture or other objects. The control should not be installed close
to heat sources (i.e. lamps, fi replaces/chimneys, direct sunlight etc.) 
and positioned away from draughts. Ensure that it is fi tted on a fl at, 
solid surface that is non-conductive between 1.2-1.5m off  the ground 
fl oor. This allows the room temperature to be measured at the correct 
height and results in more comfortable control.

  Wall mounting

Before mounting the wall unit, take-off  the housing cover from the 
base plate. 

1. Remove the screw on the underside 
2. Open the housing by lifting the housing cover on the bottom edge 
    and then lifting it.

Now fi rmly mount the base plate on the wall or the fl ush-mounted 
socket with the screws provided.

           Ensure batteries are positioned in corrext polarity and are 
secure in the base plate

Connection

Wire the room unit in accordance with the following connection plan:

REHAU Star 50       230 V version

Terminals

 

Temperature Setback

N

Neutral

L

230 V AC supply

Switching output (actuator, strip terminal)

 Replace the cover in the reverse order to above.

Operation

The electronic REHAU Star 50 room unit, controls the temperature in 
dry closed rooms with normal environment and a maximum relative
room humidity of 95% (non-condensing).

The desired room temperature can be set very easily with + or - to 
increase or decrease temperature Set Point. The  REHAU Star 50 
ensures stable room control by maintaining the set point room tem-
perature. 

The REHAU Star 50 becomes the master controller and sends the 
set back signal to all other Star controllers connected to the common 
wiring centre.

Cleaning 

Never use anything other than a soft, dry cloth to clean the unit. Ne-
ver use any cleaning agents containing solvents or any sharp objects 
to clean the unit! 

Navigation

Set up data Star 50

Set up data for PROGRAMMABLE 

Electronic Room Temperature 

controller for underfl oor heating 

and cooling.

REHAU STAR COMFORT CONTROLS

INSTALLER/USER SETUP - STAR 50 
PROGRAMMABLE ROOM CONTROLLER, ART NO: 205576

1 – Access the Main Menu by 

pressing the Menu Button

2 – Navigate through the menu 

by pressing – for lower and + for 

higher entries

3 – Enter the selccted topic by 

pressing the select button or 

leave to the previous menu without 

any changes by pressing cancel

Change Display

The Change Display menu off ers 

the Full Screen, selected screen 

and basic screen view.

Change Profi le

In the change profi le menu you 

can choose between family, single, 

offi  ce, name 1 and Name 2 profi le

Change Holiday

In the change holiday menu you 

can make your holidays settings 

and turn them On or Off 

Program On/Off 

In the program menu you can 

choose between Program or 

Manual operation

Key Lock

By pressing – and + button for 

three seconds, a Key Lock can be 

attached to protect the controller 

from failure operation

Basic Operation

Manual Operation

By pressing the – or + buttons, 

the manual operation mode will 

be activated. Current programs 

will be overwritten until the next 

daytime starts.

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