Danfoss DEVIreg 233 User manual

www.DEVI.com
Installation Guide
DEVIreg™ 233
Electronic Thermostat

DEVIreg™ 233
Installation Guide2
1 Introduction � � � � � � � � � � � � � � � � � � � � � 2
1.1 Technical Specifications . . . . . . . . . . . 3
1.2 Safety Instructions . . . . . . . . . . . . . . . 4
2 Mounting Instructions � � � � � � � � � � � � � � � 5
3 Settings � � � � � � � � � � � � � � � � � � � � � � � � 7
4 Warranty� � � � � � � � � � � � � � � � � � � � � � � � 9
5 Disposal Instruction � � � � � � � � � � � � � � � 11
1 Introduction
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 1- pole 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
Table of Contents

DEVIreg™ 233
3Installation Guide
1�1 Technical Specifications
Operation voltage 220-240 V~, 50 Hz
Standby power consumption Max 1.7 W
Relay:
Resistive load
Inductive load
Max 13 A / 2990 W @ 230 V
cos φ= 0.3 max 1 A
Sensing units NTC 15 kOhm at 25 °C
Sensing values:
0 °C
25 °C
50 °C
42 kOhm
15 kOhm
6 kOhm
Hysteresis ± 0.4 °C = 0,8 °C
Ambient temperature 0 °C to +40 °C
Frost protection temperature 5 °C -
Temperature range (0)+5 °C to +45 °C
Cable specification max 1 x 4 mm² or 2 x 1,5 mm²
Ball pressure temperature 75 °C
Pollution degree Degree 2 (domestic use)
Type 1C
Storage temperature -20 °C to +65 °C
IP class 41(only by vertical installation)
Protection class Class II -

DEVIreg™ 233
Installation Guide4
Dimensions 71x 44 x 31mm
(in-wall depth: 20mm)
Weight 77 g
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�2 Safety 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.
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 sup-
ply 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.

DEVIreg™ 233
5Installation Guide
• Do not expose the thermostat to moisture, water,
dust, and excessive heat.
2 Mounting Instructions
Please observe the following placement guidelines:
Place the thermostat at a suitable height
on the wall.
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.

DEVIreg™ 233
Installation Guide6
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.
Max.
Load
13 (1) A
Mains
220-240V~
Sensor
D233
NL
LN
Load
IP41
0T40
Danfoss A/S
Ulvehavevej 61
7100 Vejle
Denmark
Note: Always install the floor sensor in a conduit in the
floor.

DEVIreg™ 233
7Installation Guide
3. Mount and reassemble the thermostat. The thermo-
stat 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.
3 Settings
Please be aware of the following:
• The floor temperature is measured where the sen-
sor 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 tem-
perature on the top surface of the floor (usually
27-28˚C).
• Always use a floor sensor to control floor heating.

DEVIreg™ 233
Installation Guide8
How to change the minimum and maximum floor
temperatures
1. Remove the front cover.
2. Move the adjustment sledg-
es to the desired positions.
3. Put the front cover back in
place.

DEVIreg™ 233
9Installation Guide
4 Warranty
A 2-year product warranty is valid for:
• thermostats: DEVIreg™ 233.
Should you, against all expectations, experience a problem with your DEVI product,
you will find that Danfoss offers DEVIwarranty valid from the date of purchase on
the following conditions: During the warranty period Danfoss shall offer a new com-
parable product or repair the product if the product is found to be faulty by reason
of defective design, materials or workmanship.The repair or replacement.
The decision to either repair or replace will be solely at the discretion of Danfoss.
Danfoss shall not be liable for any consequential or incidental damages including,
but not limited to, damages to property or extra utility expenses. No extension of the
warranty period following repairs undertaken is granted.
The warranty shall be valid only if the WARRANTY CERTIFICATE is completed
correctly and in accordance with the instructions, the fault is submitted to the
installer or the seller without undue delay and proof of purchase is provided. Please
note that the WARRANTY CERTIFICATE must be filled in, stamped and signed by the
authorized installer performing the installation (Installation date must be indicated).
After the installation is performed, store and keep the WARRANTY CERTIFICATE and
purchase documents (invoice, receipt or similar) during the whole warranty period.
DEVIwarranty shall not cover any damage caused by incorrect conditions of use,
incorrect installation or if installation has been carried out by non-authorized electri-
cians. All work will be invoiced in full if Danfoss is required to inspect or repair faults
that have arisen as a result of any of the above.The DEVIwarranty shall not extend to
products which have not been paid in full. Danfoss will, at all times, provide a rapid
and effective response to all complaints and inquiries from our customers.
The warranty explicitly excludes all claims exceeding the above conditions.
For full warranty text visit www�devi�com�
devi�danfoss�com/en/warranty/

DEVIreg™ 233
Installation Guide10
WARRANTY CERTIFICATE
The DEVIwarranty is granted to: Address Stamp Purchase date Serial number of the product Product Art. No. *Connected output [W] Installation Date & Signature
Connection Date & Signature
*Not mandatory

DEVIreg™ 233
Produced by Danfoss © 03/202308091349 & AQ069786451637en-010204
Danfoss A/S
Nordborgvej 81
6430 Nordborg, Syddanmark
Denmark
5 Disposal Instruction

DEVIreg™ 233 140F1020 DK Electronic thermostat 220-240V~ 50-60Hz +5°C to +45°C 13A/2990W@230V~ IP41
Product documentation
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DK EL 7224215043
Designed in Denmark for Danfoss A/S
*08095090*
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*08091349*
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