Danfoss DEVIreg Opti Installation guide
Installation Guide
DEVIreg™ Opti
Electronic Timer Thermostat fulfilling
Eco Design Directive
www.DEVI.com
DEVIreg™ Opti
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5. Display Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6. Configuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7. Settings & Break out . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8. Disposal Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1 Introduction
DEVIreg™ Opti is an electronic programmable timer
thermostat used for controlling electrical floor heating
elements. The thermostat is designed for fixed installation
only and can be used for both direct heating of the entire
room and for comfort heating of the floor. Among others,
the thermostat has the following features:
Installation Guide2
DEVIreg™ Opti
• A screen display operated by buttons.
• An easy-to-follow, menu driven programming and
operation.
• Pre-installed timer settings.
• Offered with integrated frame.
• Using DEVI standard NTC floor sensor (15 k Ohm at 25°C).
• Open window detection.
• Low stand-by energy consumption.
• Weekly timer.
More information about this product can be
found at: devi.com
2 Technical Specifications
Operation voltage 220-240 V~, 50Hz
Standby power consumption Max. 0,5 W
Relay:
Resistive load
Inductive load
Max. 13 A / 2990 W @ 230 V
Max. 1 A cos = 0,3
3Installation Guide
DEVIreg™ Opti
Sensing units (floor sensor) NTC 15 kOhm at 25°C (Default)
Sensing values:
0°C
20°C
50°C
Control PWM (Pulse Width Modulation)
Cable specification max. 1x4 mm2 and 2x2,5 mm
Ambient temperature 0° to +35°C
Frost protection temperature 5°C to +9°C (default 5°C)
Temperature range Room temperature: 5-35°C.
Sensor failure monitoring The thermostat has a built-in
Ball pressure test temperature 75°C
Pollution degree 2 (domestic use)
42 kOhm
18 kOhm
6 kOhm
2
Floor temperature: 5-45°C.
Max. floor: 20-35°C (if unrecoverable seal is broken then up to 45°C).
Min. floor: 10-34,5°C, only with
combination of room and floor
sensor.
monitoring circuit, which
will switch off the heating if
the floor sensor is disconnected
or short-circuited
Installation Guide4
DEVIreg™ Opti
Controller type 1B
Software class A
Storage temperature -25°C to +60°C
IP class 21
Protection class
Dimensions 85 x 85 x 44 mm
Weight 138 g
Class II -
(in-wall depth: 24 mm)
Electrical safety and Electro-Magnetic Compatibility for
this product is covered by the compliance with the EN/IEC
Standard “Automatic electrical controls for household and
similar use”:
• EN/IEC 60730-1 (general)
• EN/IEC 60730-2-9 (thermostat)
3 Safety Instructions
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.
5Installation Guide
DEVIreg™ Opti
Make sure the mains supply to the thermostat is turned
off before installation.
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.
• Always connect the thermostat to continuous power
supply.
• Do not expose the thermostat to moisture, water,
dust, and excessive heat.
• This thermostat can be used by children aged from 8
years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge, if they have been given supervision
or instruction concerning use of the appliance in a
Installation Guide6
DEVIreg™ Opti
safe way and understand the hazards involved, by a
person responsible for their safety.
• Children should be supervised to ensure that they do
not play with the thermostat.
• Cleaning and user maintenance shall not be made by
children without supervision.
4 Mounting Instructions
Please observe the following placement guidelines:
Place the thermostat at a suitable height on the
wall (typically 80-170 cm.).
The thermostat should not be placed in wet
rooms. Thermostat must be placed outside zone
2. Place it in an adjacent room and use floor sensor only. Always place the thermostat according
to local regulation on IP classes.
Do not place the thermostat on the inner side of
a poorly insulated exterior wall.
7Installation Guide
DEVIreg™ Opti
12
Always install the thermostat at least 50 cm from
windows and doors, due to draft, when using
regulation in: floor and room mode or room
alone mode.
Do not place the thermostat in a way that it will
be exposed to direct sunlight.
Note: A floor sensor is recommended in all floor
heating applications and mandatory to thin
matsand under wooden floors to reduce the risk
of overheating the floor.
• Place the floor sensor
in a protecting plastic
conduit in the floor
construction in an appropriate place, where
the floor is not exposed
to sunlight or draft
from door openings.
≥
• Equally distant and >2 cm from the heating cables on
both sides.
Installation Guide8
DEVIreg™ Opti
• The conduit should be flush with the floor surface, coun-
tersink the conduit if necessary and possible.
• Route the conduit to the connection box.
• The bending radius of the conduit must be min 50 mm.
Follow the steps below to mount the thermostat:
1. Unpack thermostat
2. Remove the front cover as showed
on Pic. 1.
3. Connect the thermostat accor-
ding to the connection diagram.
The screen of the heating cable
must be connected to the earth
Made in P.R.C.
conductor of the power supply
cable by using a separate connector.
Note: Always install the floor sensor in a conduit in
the floor.
S2 S1 L
Max Load
13(1) ASensor
Danfoss A/S, 6430 Nordborg, Denmark
IP21
0T35
Ambient Temperature: 0-35°C
Standby maximum 0.5W
DEVIreg™ Opti
Pic. 2
Pic. 1
N
N
LOADLLOAD
Mains 220-240V~
50Hz
9Installation Guide
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