DEVIreg™ 233 is an electronic thermostat designed to be
flush-mounted or wall-mounted in an installation box from
the LK FUGA series. The thermostat is provided with a 1pole switch, and a floor sensor to measure and control the
desired floor temperature. It can also be used with an external room sensor.
The thermostat has a button to adjust the temperature setting with a scale from (0) 1 to 6 (each step corresponds to
approximately 8°C). Furthermore, the thermostat has an
LED indicator showing standby and heating periods.
More information on this product can also be found at:
devireg.devi.com
1.1Technical Specifications .....4
1.2Safety Instructions ........5
Installation Guide 3
DEVIreg™ 233
1.1Technical Specifications
Operation voltage220-240V~, 50Hz
Standby power consump-
tion
Relay:
Resistive load
Inductive load
Sensing unitsNTC 15kOhm at 25°C
Sensing values:
0°C
ture
Temperature range(0)+5 to +45°C
Cable specification max
Ball pressure temperature75°C
Pollution degreeDegree 2 (domestic use)
Type1C
Storage temperature-20 to +65°C
Max 1.7 W
Max 13A / 2990W @ 230V
cos φ= 0.3 max 1A
42kOhm
15kOhm
6kOhm
5°C -
1x4mm2 or 2x2,5mm
2
4Installation Guide
DEVIreg™ 233
IP class41(only by vertical installa-
Protection class
Dimensions71x 44 x 31mm (in-wall
Weight77g
The product complies with the EN/IEC Standard "Automatic
electrical controls for household and similar use":
EN/IEC 60730-1 (general)
▪
EN/IEC 60730-2-9 (thermostat)
▪
1.2Safety Instructions
Make sure the mains supply to the thermostat is turned off
before installation.
IMPORTANT: When the thermostat is used to control a
floor heating element in connection with a wooden floor or
similar material, always use a floor sensor and never set the
maximum floor temperature to more than 35°C.
Installation Guide 5
tion)
Class II -
depth: 20mm)
DEVIreg™ 233
Please also note the following:
The installation of the thermostat must be done by an
▪
authorized and qualified installer according to local
regulations.
The thermostat must be connected to a power supply
▪
via an all-pole disconnection switch.
The sensor is to be considered as live voltage. Have
▪
this in mind if the sensor must be extended.
Always connect the thermostat to continuous power
▪
supply.
Do not expose the thermostat to moisture, water, dust,
▪
and excessive heat.
2Mounting Instructions
Please observe the following placement guidelines:
Place the thermostat at a suitable height
on the wall.
6Installation Guide
DEVIreg™ 233
In wet rooms, place the thermostat according to local regulation on IP classes. Do not
install the thermostat in small bathrooms
with poor ventilation, nor close to the toilet due to the risk of condensed water and
water splash.
Note: A floor sensor enables a more accurate temperature control and is recommended in all floor heating applications
and mandatory under wooden floors to
reduce the risk of over-heating the floor.
Place the floor sensor in a conduit in an appropriate
▪
place where it is not exposed to sunlight or draft
from door openings.
Equally distant and >2cm from two heating cables.
▪
The conduit should be flush with the floor surface -
▪
countersink the conduit if necessary.
Route the conduit to the connection box.
▪
The bending radius of the conduit must be min
▪
50mm.
Installation Guide 7
DEVIreg™ 233
Follow the steps below to mount the thermostat:
1. Open the thermostat:
Detach the front cover by inserting a small screw-
▪
driver in the hole on top of the thermostat and lifting
the cover outwards.
Loosen the two screws and carefully detach the unit.
▪
2. Connect the thermostat according to the connection
diagram.
Note: Always install the floor sensor in a conduit in the
floor.
8Installation Guide
DEVIreg™ 233
3. Mount and reassemble the thermostat.
The thermostat is to be installed in a flush-mounting
box or a surface-mounting box for the FUGA design.
Put the unit back in place and tighten the screws in
▪
each side to fasten the thermostat.
Press the front cover back in place.
▪
4. Turn on the power supply.
3Settings
Please be aware of the following:
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 manufactures often specify the max temperature
▪
on the top surface of the floor (usually 27-28˚C).
Always use a floor sensor to control floor heating.
▪
Installation Guide 9
2
Y E A R
DEVIreg™ 233
How to change the minimum and maximum floor temperatures
1. Remove the front cover.
2.
Move the adjustment
sledges to the desired
positions.
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its
products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes
being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. DEVI and the DEVI logotype are trademarks of Danfoss A/S. All rights reserved.