Danfoss DEVIreg Smart Installation guide

Installation Guide

DEVIreg™ Smart

Intelligent Electronic Timer Thermostat or Timer
Switch with Wi-Fi connectivity and App control

www.DEVI.com

DEVIreg™ Smart

Table of Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . 2

2 Technical Specications . . . . . . . . . . . . . . . 4

3 Safety Instructions . . . . . . . . . . . . . . . . . . 6

4 Mounting Instructions . . . . . . . . . . . . . . . . 8

5 Display Symbols . . . . . . . . . . . . . . . . . . . 13

6 Configuring . . . . . . . . . . . . . . . . . . . . . . 19

7 Settings . . . . . . . . . . . . . . . . . . . . . . . . 20

8 Warranty. . . . . . . . . . . . . . . . . . . . . . . . 23

9 Radio Equipment Directive . . . . . . . . . . . . 24

10 Disposal Instruction . . . . . . . . . . . . . . . . 25

1 Introduction

DEVIreg™ Smart is an electronic programmable timer
thermostat used for controlling electrical oor heating
elements. The thermostat is designed for xed installation
only and can be used for both direct heating of the entire
room and for comfort heating of the oor. Among others,
the thermostat has the following features:

• A touchscreen display with light.

• An easy-to-follow menu-driven programming and
operation (requires an app).

Installation Guide2

DEVIreg™ Smart

• An installation wizard with room/oor type-specic
setup (requires an app).

• Support for multiple frame systems.

• Compatible with several 3rd party NTC sensors.

• Thermostat settings can be specied before instal­lation and imported to the thermostat using a web­generated code (For DEVIreg™ Touch), or copied
from a thermostat in a similar installation. This
includes DEVIreg™ Touch thermostats.

• Smart access via app to thermostat settings after
installation, for easy access, setup or remote trou­bleshooting. Thermostat/timer will continuously be
updated with newest version of software.

• DEVIreg™ Smart can be used as a switch for On/O
systems

Regarding Connectivity:

• 10 smart devices (like Smartphone or Tablet) can be
connected to 1 thermostat/switch.

• 2 smart devices can be in contact with the thermo­stat/switch at the same time.

DEVIREG™ SMART REQUIRES WORKING Wi-Fi
TO FUNCTION .

3Installation Guide

DEVIreg™ Smart

More information on this product can also be found at:
devismart.com

2 Technical Specications

Operation voltage 220–240 V~, 50/60 Hz

Standby power
consumption

Relay:
Resistive load
Inductive load

Sensing units* NTC 6,8 kOhm at 25°C

Sensing values*:
(Default NTC 15 K)
0 °C
20 °C
50 °C

Control* PWM (Pulse Wide Modulation)

Ambient temperature 0°C to 30°C

Frost protection
temperature*

Max. 0,40 W

Max. 16 A / 3680 W @ 230 V
Max. 1 A cos φ= 0,3

NTC 10 kOhm at 25°C
NTC 12 kOhm at 25°C
NTC 15 kOhm at 25°C (Default)
NTC 33 kOhm at 25°C
NTC 47 kOhm at 25°C

42 kOhm
18 kOhm
6 kOhm

5°C to 9°C (default 5°C)

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DEVIreg™ Smart

Temperature range* Room temperature: 5°C to 35°C.

Sensor failure monitoring* The thermostat has a built-in

Timer functions 2 periods per day for DEVIweb™.

Cable specication max. 1x4 mm

Ball pressure test tem­perature

Floor temperature: 5°C to 45°C.
Max. oor: 20°C to 35°C (if unrecover­able seal is broken then up to 45°C).
Min. oor: 10°C to 35°C, only with
combination of room and oor sensor.

monitoring circuit, which will switch
o the heating if the sensor is
disconnected or short-circuited.

5 periods per day for DEVIsmart App.
All clock/date/schedule settings are
updated from the cloud.
Set-point resolution of timer is
30minutes.

2

75°C

Pollution degree 2 (domestic use)

Controller type 1C

Software class A

Storage temperature -20°C to +65°C

IP class 21

Protection class Class II -

5Installation Guide

DEVIreg™ Smart

Dimensions 85 x 85 x 20-24 mm

Weight 127 g

* not relevant for switch function

(in-wall depth: 22 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 60730-2-7 (timer)

• EN/IEC 60730-2-9 (thermostat)

3 Safety Instructions

Make sure the mains supply to the thermostat/switch is
turned o before installation.

Important: When the thermostat is used to control a
oor heating element in connection with a wooden oor
or similar material, always use a oor sensor and never set
the maximum oor temperature to more than 35°C.

Please also note the following:

• The installation of the thermostat
by an authorized and qualied installer according to
local regulations.

/switch

must be done

Installation Guide6

DEVIreg™ Smart

• The thermostat

/switch

must be connected to a power

supply via an all-pole disconnection switch.

• Always connect the thermostat

/switch

to continuous

power supply.

• Do not expose the thermostat

/switch

to moisture,

water, dust, and excessive heat.

• This thermostat

/switch

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 safe way and understand the hazards involved, by a
person responsible for their safety.

• DEVIreg™ Smart can modied to work as a timer on/
o switch by downloading new software with new
functionality.

• Children should be supervised to ensure that they do
not play with the thermostat

/switch

.

• Switch is designed for permanent operation.

• Not for uorescent lamps and lament lamps.

• Cleaning and user maintenance shall not be made by
children without supervision.

• Updating to timer switch function may take up to
1hour. Same time should be expected if function is to
be rolled back to thermostat functionality.

7Installation Guide

DEVIreg™ Smart

4 Mounting Instructions

Please observe the following placement guidelines:

Place the thermostat at a suitable height on the wall
(typically 80–170 cm). Switch can be placed on free
area on the wall.

The thermostat/switch should not be placed in wet
rooms. Thermostat/switch must be placed outside
zone 2. Place it in an adjacent room and use oor
sensor only. Always place the thermostat/switch
according to local regulation on IP classes.

Do not place the thermostat on the inner side of a
poorly insulated exterior wall.

Always install the thermostat at least 50 cm from
windows and doors, due to draft, when using regulation
in: oor and room mode or room alone mode.

Do not place the thermostat in a way that it will be
exposed to direct sunlight.

Installation Guide8

DEVIreg™ Smart

12

≥

Note for thermostat: A oor sensor is recommend­ed in all oor heating applications and mandatory
to thin mats and under wooden oors to reduce the

risk of over-heating the oor.

• Place the oor sensor in a protecting plastic conduit
in the oor construction in an appropriate place,
where the oor is not exposed to sunlight or draft
from door openings.

• Equally distant and
>2 cm from the
heating cables on
both sides.

• The conduit should
be ush with the
oor surface, coun­tersink the conduit
if necessary and
possible.

• Route the conduit to the connection box.

• The bending radius of the conduit must be min 50 mm.

9Installation Guide

DEVIreg™ Smart

Follow the steps below to mount the thermostat/switch:

1. Unpack thermostat/switch.

2.1. Connect the thermostat according to the connection
diagram.

L

L

O

The screen of the heating
cable must be connected to
the earth conductor of the
power supply cable by using
a separate connector.

NTC

Sensor

Danfoss A/S

Nordborgvej 81
6430 Nordborg
Denmark

Standby maximum 0.4 Watt

A
D

Maximum
Load 16 (1) A

N

Mains
220-240V~
50-60 Hz

IP21

T30

O
A

NLL

D

Note: Always install the oor sensor in a conduit in
the oor.

L

L

O

2.2. Connect the switch ac­cording to the connection
diagram.

NTC

Danfoss A/S

Nordborgvej 81
6430 Nordborg
Denmark

Standby maximum 0.4 Watt

A
D

Maximum
Load 16 (1) A

N

Mains
220-240V~
50-60 Hz

IP21

T30

O
A

NLL

D

3. Fasten the thermostat/switch rmly to a ush
mounted wall box or an exterior wall box by driving

Installation Guide10

DEVIreg™ Smart

the screws through the holes in each side of the
thermostat/switch.

4. Add the frame before assem­bling of top part to the snap
locks/bottom part.

5. Click the front part module in
place. Pay attention, in relation
to the female header, in not to
bending the connectors. Press
carefully until the frame is xed
against the rubber gasket.

11Installation Guide

DEVIreg™ Smart

Important: Do NOT press in the center of the display screen.

When mounting and reassembling the thermostat/switch.

Press your ngers under the top of the front part and pull
toward you until it releases from the snap lock:

To ensure that the batteries are fully charged, the ther­mostat/switch shall be connected to main supply for
minimum 15 hours.

All other settings are stored permanently.

Installation Guide12

DEVIreg™ Smart

5 Display Symbols

Top part main functionalities are to support user interface
through display and hold all the controller logic.

Display main functionalities are to show the current status
of the thermostat/switch and recognize the user actions
from the buttons. Display consists of dierent buttons,
numbers and symbols.

Thermostat Switch

1

2

4

3

13Installation Guide

DEVIreg™ Smart

Nr. Type Description

1 Button/Symbol Control button

2 Button/Symbol Arrow Up button

3 Button/Symbol Arrow Down button

4 Symbol Thermostat function: 3 digit 7 seg-

ment numbers with comma separator
for temperature indication. Timer
switch function: “On”/”O” text.

Symbol indications

Indication Mode/State Description

Blue - blinking Access Point

Blue Access Point

Red - blinking Fault state Displays Error code

Red - slow
pulsing

Green - constant Active Mode Thermostat/switch active and

Mode

Mode

Active Mode Indicating heating the oor

Thermostat/switch ready for
set-up

Smart phone connected
directly to thermostat/switch
for set-up

(Relay on)

connected to Wi-Fi (Relay o)

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DEVIreg™ Smart

Green – blinking Active Mode

Arrows –
blinking rapidly
when touched

& Access
Point Mode

Active Mode Safety lock is on

Thermostat/switch waiting for
conrmation of action

Interaction directly on thermostat

Function Button Description

Turn
thermostat/
switch on

Turn
thermostat/
switch o

Adjust set­point

1. Touch any button

2. Touch control but­ton (1)

1. Touch any button

2. Touch and hold
control button (1)

Up (2) Overrule timer and

Down (3) Overrule timer and

Thermostat/switch
turn on and display
temperature or On/O
states

Thermostat/switch
display will turn on
Thermostat switch
count down and switch
o

switch on/temporary
set point

switch o/temporary
set point

15Installation Guide

DEVIreg™ Smart

Frost protec­tion

Safety lock Touch and hold Up (2)

Factory
restore

Away mode Touch and hold

Touch and hold Con­trol (1) for 1 sec.

+ Down (3) for 3 sec.

Touch and hold
Control (1) + Up (2)
for 5 sec.
After that touch
Control (1) again to
conrm

Control (1) for 1 sec. to
deactivate Away mode

Deactivate frost protec­tion

Activate/Deactivate
safety lock

Activates factory
restore state

Activate/Deactivate
Away/Vacation mode

Error codes

When the error occurs and is resolved, the thermostat, in
some cases, will require a restart to start heating again.

Installation Guide16

DEVIreg™ Smart

Error
type

Floor
Sensor
discon­nected

Floor
Sensor
short­circuited

Thermo­stat over­heated

Unrecov­erable
error

Nr. Description Solution Need restart

E1 Connection

to sensor is
lost

E2 Sensor short-

circuited

E3 Thermostat

is overheat­ed, heating is
turned o

E4 Room

temperature
sensor value
too high or
too low

Contact
service

Contact
service

Wait until
thermo­stat cools
down

Contact
service

The thermostat
requires a restart
to operate again.

The thermostat
requires a restart
to operate again.

The thermostat
requires no
restart, but will
start heating
when the
temperature is
lowered

The thermostat
requires a restart
to operate again.

17Installation Guide

Communication Error Codes

DEVIreg™ Smart

Communication
error

Wrong SSID or
password

No IP address C2 STA - connection acquired, no IP

No internet con­nection

Nr. Description

C1 STA trying to connect to the AP

yet, waiting for conguration data.

C3 STA connected and has an IP from

DHCP server.

Installation Guide18

DEVIreg™ Smart

6 Configuring

Download App

Download the DEVIsmart™ app from App Store
or Google Play or at devismart.com.

Find Wi-Fi name and password for the Wi-Fi
network, that you would like to connect your
thermostat/switch to. If in doubt contact net­work administrator or internet service provider.

Identify your oor sensor type ( in kOhm).

Identify your installed output (in W), from
label on the heating element/equipment.

Power on the thermostat, and it will show
“-“ in the display. Then it is ready to be con­gured using your iPhone and Android device.

Open the DEVIsmart™ App. Follow instructions and set­up ow in the App.

DEVIreg™ Smart indication

The DEVIreg™ Smart shows “–” indicating that power is
ON, but still need to be congured.

19Installation Guide

7 Settings

DEVIreg™ Smart

IMPORTANT DURING
THERMOSTAT SET-UP

Select whether only a oor sen­sor or a combination of room
and oor sensor should be used.

A “room only” option is also
available, but requires that you
have to break the small plastic
seal and the seal in the print
board below, on the back of
the display module, e.g. using
a screwdriver; reset is needed;
it will be possible to set the

Installation Guide20

DEVIreg™ Smart

maximum oor temperature up to 45 °C. Furthermore, it
will be possible to use only a room sensor. However, this
option is not recommended due to an increased risk of
overheating the oor.

IMPORTANT: When the thermostat is used to control a
oor heating element in connection with a wooden oor
or similar material, always use a oor sensor and never set
the maximum oor temperature to more than 35°C.

Note: Please contact the oor supplier before changing the
maximum oor temperature and be aware of the following:

• The oor temperature is measured there, where the
sensor is placed.

• The temperature of the bottom of a wooden oor
can be up to 10˚C higher than the top.

• Floor manufactures often specify the max. tempera­ture on the top surface of the oor.

21Installation Guide

DEVIreg™ Smart

Thermal
resistance
[m2K/ W]

0,05 8 mm HDF based

0,10 14 mm beech

0,13 22 mm solid oak

< 0,17 Max. carpet thick-

0,18 22 mm solid r

Examples of
ooring

laminate

parquet

plank

ness suitable for
oor heating

planks

Details
kg/m

> 800 28°C

650 – 800 31°C

> 800 32°C

acc. to
EN 1307

450 – 650 35°C

Approximate set-

3

ting for 25°C oor
temperature

34°C

IMPORTANT DURING SWITCH SETUP

To use the switch function, it requires that you have to
break the small seals on the back of the display module,
e.g. using a screwdriver, by the same actions as described
for thermostat.

Installation Guide22

DEVIreg™ Smart

8 Warranty

The products will, in the event of a fault that can be tracked
back to a manufacturing defect in the DEVI product, be
repaired or replaced free of charge. To apply for this war­ranty the installation must be performed by an authorized
installer and the warranty certicate has to be stamped,
signed and provided. For more details read our warranty
terms and conditions.

23Installation Guide

DEVIreg™ Smart

9 Radio Equipment Directive

SIMPLIFIED EU DECLARATION OF CONFORMITY

The simplied EU declaration of conformity referred to in
article 10(9) shall be provided as follows:
Hereby, Danfoss A/S declares that the radio equipment
type i.e. DEVIreg Smart is in compliance with Directive
2014/53/EU.

The full text of the EU declaration of conformity is avail­able at the following internet address: devi.danfoss.com

Installation Guide24

DEVIreg™ Smart

10 Disposal Instruction

25Installation Guide

DEVIreg™ Smart

Installation Guide26

DEVIreg™ Smart

27Installation Guide

DEVIreg™ Smart

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produc
Al

Danfoss A/S

DEVI • devi.com • [phone] • E-Mail: EH@danf

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ts already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.

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