DEVI DEVIreg 535 User manual

Devireg™ 535
Installation manual
Warning!
This manual is only to be used by a
professional installer to install and
set up the thermostat properly.
It is not intended for the end-user!
INT

2
... your DEVI floor heating system.
Your property has been installed with a DEVI electric floor
heating system. DEVI is Europe’s leading floor heating man-
ufacturer, with over 45 years experience. We are confident
that you will be satisfied with your new system.
DEVI brings you…
An Invisible heating solution - A concealed heat source
opens up greater opportunities for decorating and furnish-
ing.
Optimum comfort - DEVI brings you the luxury and comfort
of a warm floor as well as a pleasant room temperature.
Floor heating is the most comfortable type of heating
because it is based on the fact that warmth travels upwards;
pleasant warmth for your feet, body and head.
Low running costs – Thanks to the precise DEVI thermostat
and the placement of the heating elements right under the
floor surface the heat can be controlled optimally in order
for you to have the comfort you desire with minimal energy
use. Moreover electric floor heating is practically mainte-
nance free, in total keeping down the running costs.
A long lasting solution - We back-up our floor heating solu-
tions with a ten year guarantee on all our mats and cables,
and a two year warranty on our thermostats. Practically
speaking you can count on DEVI heating cables and mats
lasting as long as the house in which they are installed – and
that is without having to maintain them.
Hygiene - As DEVI produce floor heating systems, only very
gentle air is circulating, and the amount of travelling dust
particles is reduced considerably; a great relief for people
with allergies or asthma. There are also no dangerous fumes
such as carbon monoxide generated by the system.
Congratulations with…

INT
3
Placement of Devireg™ 535
When Devireg™ 535 is used as a room
sensor, installation height should typi-
cally be between 80-150 cm.
In wet rooms it should be installed on an
even surface, according to local building
regulations.
At least 50 cm away from windows/doors
that will be left open occasionally.
Not on a wall where it will be subjected to
direct sunlight.
Not on the inner side of a wall facing the
outside.
Install & configure the thermostat

4
N L
Installation of Devireg™ 535
1. To remove the front cover, gently press the release tabs
under the bottom of the thermostat with a screwdriver.
Then remove the front.
2. Connect the thermostat according to the connection
diagram
The screen of the heating cable must be connected via a
terminal strip to the earth wire of the supply cable.
Installation and connection
Max.
Load
15 A
Sensor
NO CONNECT
Mains
180-250V~
Removing the front cover and
pushing the installation button,
is not intended to be done by
anyone else but a qualified
installer!
NL NTC
L
Load
N
Load

INT
5
3. Choose sensor combination
When installing the Devireg™ 535 you need to choose
the type of heating and thus which sensors should be
used. You have three options:
Comfort heating: Constant temperature on the floor in
bathrooms and other rooms where a comfortable warm
surface is required.
Install the Floor sensor and choose only the Floor sensor.
Total heating: Control of room temperature in living
rooms etc. Install the Floor sensor and choose both
Floor sensor and Room sensor.
No floor sensor: A floor sensor is not present, and
cannot be installed. Choose Room sensor. (Not
recommended).
Be aware that without a floor sensor, the temperature
control can be less accurate, and overheating of the
floor is of higher risk.
DEVI recommends that a floor sensor is always
installed.
When the thermostat is used to control a floor heating
element according to EN/IEC 60335-1 and
EN/IEC 60335-2-96, always use the floor sensor
and never set the temperature limit above 35°C.
Choose sensor combination

6
Selection of sensor type
Power on the thermostat.
With the front off, with a small screw-
driver, pencil, or needle press the
installation button.
Select the sensors to be used for the
heating system:
DeviregTM 535 is able to use two
sensors:
- a built-in room sensor
- an external sensor to be placed
in the floor.
This gives 3 options:
floor sensor.
room sensor.
both room and floor sensor.
The default is
To change this setting, press • and
use the arrow buttons ▲▼ to select
your choice. Press • to accept your
choice.
If you have selected room sensor
only, the installation procedure is
complete. Press installation button
to accept. (Go to page 9).
If you have selected floor sensor or a
combination of room- and floor sen-
sor press ▲▼ for the next setting.
Configuration - sensor
Always use floor sensor or a room
+ floor sensor combination when
used to control floor heating

INT
7
Notice:
The floor temperature is measured where the sensor is
placed. The temperature of the bottom of a wooden floor
can be up to 10 degrees higher than the top. Floor manu-
factures often specify the max. temperature on the top
surface of the floor.
Please contact your floor supplier for maximum surface
temperature.
Maximum floor temperature.
When selecting either floor
sensor or floor and room
sensors, next screen is maximum
floor temperature.
Default setting is 35°C.
To change this setting, press • and
use the arrow buttons ▲▼ to select
your choice. Press • to accept your
choice.
If you have selected a combination of
room and floor sensor, the installa-
tion procedure is complete.
Press installation button to accept.
(Go to page 9)
If you have selected floor sensor only
press ▲▼ for the next setting.
Configuration - Max. floor temp.
When the thermostat is used to control a floor heating
element according to EN/IEC 60335-1 and
EN/IEC 60335-2-96, always use the floor sensor
and never set the temperature limit above 35°C.

8
Scale
If you select DeviregTM 535 to only
use a floor sensor, mode , you
have to select the display type. The
choice is either numerical scale 1-6
or Celcius scale 5° to 45°.
Default is Celcius scale. When select-
ing Celcius, the display will show
the actual temperature at the floor
sensor.
To change this setting, press • and
use the arrow buttons ▲▼ to select
your choice.
Press • to accept your choice.
The installation procedure is now
finished.
You can use the ▲▼ for going back or
forward through the settings.
Otherwise:
Press the installation pinhole to exit
installation mode.
4. Put the frame and front back on.
Initially mains supply the thermostat for 15 hours to
fully charge the battery. The current time and day
is then kept for 80 days if mains supply is off.
All other settings are stored permanently.
Configuration - Scale

INT
9
Trouble shooting
Clock symbol flashing:
Time settings were lost due to power cut.
The thermostat resumes to manual mode.
E4 flashing in display:
Error code 4 – The thermostat has overheated
and has switched off
Let the thermostat cool for period. Then switch
the thermostat off and on.
E5 or E6 flashing in display:
Error code 5 - Floor sensor short circuited.
Error code 6 - Floor sensor disconnected.
Check connections, if they are OK, then discon-
nect the 2 sensor wires and connect an ohm
meter to sensor wires.
Measure the ohm value and check with the
values in the table in Technical Specifications
below.
Light Indications (LED)
The DeviregTM 535 has a LED above the 2 pole safety switch.
The LED has five indications:
No light The system is turned off.
Green light System is standing by, set point
temperature reached
Green light flashing Floor sensor is defect
Red light System is heating
Switching between
red and green light
The floor temperature limit pre-
vents the set point room tempera-
ture from being reached.

10
Operation voltage 180-250 VAC, 50/60 Hz
Standby power
consumption
Max. 0.30 W
Relay:
• Resistive load
• Inductive load
230V ~ 15A / 3450W
cos φ= 0.3 Max. 4A
Sensing unit NTC 15 kOhm at 25°C
Sensing values:
• 0°C
• 20°C
• 50°C
42 kOhm
18 kOhm
6 kOhm
Hysteresis ± 0.2°C with room sensor,
± 0.4°C with floor sensor only
Ambient
temperature
-10° to +30°C
Frost protection 5°C
Temperature range 5-35°C with room sensor,
5-45°C with floor sensor only.
When used together with electrical
floor heating elements, according to
EN/IEC 60335-2-96 never adjust floor
temperature above 35°C.
Floor max. 20-50°C.
Floor min. 10-35°C only when installed
with room and floor sensor combina-
tion.
Sensor failure
monitoring
The thermostat has a built-in monitor-
ing circuit, which will switch off the
heating if the sensor is disconnected
or short-circuited
IP class 31
Dimensions 85 mm x 85 mm
Technical specifications

INT
11
Disposal Instruction

Article No.: 08095880
Version - 02
VICKI302 06/2010
DEVI A/S
Ulvehavevej 61
DK-7100 Vejle
Tel: [phone]
Fax: [phone]
www.devi.com