Danfoss DEVIreg Smart User manual

www.DEVI.com
Installation Guide
DEVIreg™ Smart
Intelligent Electronic Timer Thermostat or Switch
with Wi-Fi connectivity and App control

DEVIreg™ Smart
Installation Guide2
1 Introduction
DEVIreg™ Smart 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:
1 Introduction . . . . . . . . . . . . . . . . . . . 2
2 Technical Specifications . . . . . . . . . . . . 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
Table of Contents

DEVIreg™ Smart
3Installation Guide
• A touchscreen display with light.
• An easy-to-follow menu-driven programming and
operation.
• An installation wizard with room/floor type-specific
setup (requires an app).
• Support for multiple frame systems.
• Compatible with several 3rd party NTC sensors.
• Thermostat settings can be specified before instal-
lation and imported to the thermostat using a
web-generated code, or copied from a thermostat in
a similar installation.
• Smart access to thermostat settings after installa-
tion by using a web code interface, for easy setup or
remote troubleshooting.
• DEVIreg™ Smart can be used as a switch for On/Off
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 thermo-
stat/switch at the same time.
DEVIREG™ SMART REQUIRES WORKING WIFI
TO FUNCTION

DEVIreg™ Smart
Installation Guide4
More information on this product can also be found at:
devismart.com
2 Technical Specifications
Operation voltage 220-240 V~, 50/60 Hz
Standby power consumption Max. 0,40 W
Relay*:
Resistive load
Inductive load
Max. 16 A / 3680 W @ 230 V
Max. 1 A cos φ= 0,3
Sensing units* NTC 6,8 kOhm at 25°C
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
Sensing values*:
(Default NTC 15 K)
0°C
20°C
50°C
42 kOhm
18 kOhm
6 kOhm
Control* PWM (Pulse Wide Modulation)
Ambient temperature 0° to +30°C

DEVIreg™ Smart
5Installation Guide
Frost protection
temperature*
5°C to +9°C (default 5°C)
Temperature range* Room temperature: 5-35°C.
Floor temperature: 5-45°C.
Max. floor: 20-35°C (if unrecov-
erable seal is broken then up
to 45°C). Min. floor: 10-35°C,
only with combination of room
and floor sensor.
Sensor failure monitoring* The thermostat has a built-in
monitoring circuit, which will
switch off the heating if the
sensor is disconnected or
short-circuited
Cable specification max. 1x4 mm2
Ball pressure test temperature 75°C
Pollution degree 2 (domestic use)
Controller type 1C
Software class A
Storage temperature -20°C to +65°C
IP class 21

DEVIreg™ Smart
Installation Guide6
Protection class Class II -
Dimensions 85 x 85 x 20-24 mm
(in-wall depth: 22 mm)
Weight 127 g
* not relevant for switch function
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
Make sure the mains supply to the thermostat/switch 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.

DEVIreg™ Smart
7Installation Guide
Please also note the following:
• The installation of the thermostat /switch must be
done by an authorized and qualified installer accord-
ing to local regulations.
• 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.
• Children should be supervised to ensure that they do
not play with the thermostat /switch .
• Cleaning and user maintenance shall not be made by
children without supervision.
• Updating to switch mode may take up to 1 hour.
• Be informed you can’t roll back to the thermostat mode.

DEVIreg™ Smart
Installation Guide8
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 floor
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 regu-
lation 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.

DEVIreg™ Smart
9Installation Guide
Note for thermostat: A floor sensor is recommend-
ed in all floor heating applications and mandatory
to thin mats and under wooden floors to reduce the
risk of over-heating 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.
• The conduit should
be flush with the floor
surface, countersink
the conduit if neces-
sary and possible.
• Route the conduit to
the connection box.
• The bending radius of the conduit must be min 50 mm.
12
≥

DEVIreg™ Smart
Installation Guide10
Follow the steps below to mount the thermostat/switch:
1. Unpack thermostat/switch.
2.1. Connect the thermostat according to the connection
diagram.
The screen of the heating
cable must be connected to
the earth conductor of the
power supply cable by using
a separate connector.
Note: Always install the floor sensor in a conduit in
the floor.
2.2. Connect the switch ac-
cording to the connection
diagram.
3. Fasten the thermostat/switch firmly to a flush
mounted wall box or an exterior wall box by driving
IP21
T30
Mains
220-240V~
50-60 Hz
Maximum
Load 16 (1) A
Sensor
NTC
Danfoss A/S
Nordborgvej 81
6430 Nordborg
Denmark
NLL
L
O
A
DN
L
O
A
D
Standby maximum 0.4 Watt
IP21
T30
Mains
220-240V~
50-60 Hz
Maximum
Load 16 (1) A
NTC
Danfoss A/S
Nordborgvej 81
6430 Nordborg
Denmark
NLL
L
O
A
DN
L
O
A
D
Standby maximum 0.4 Watt

DEVIreg™ Smart
11Installation Guide
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/bot-
tom part.
5. Click the front part module in
place. Pay attention, in relation to
the female header, in not to bend-
ing the connectors. Press carefully
until the frame is fixed against the
rubber gasket.
When mounting and reassembling the thermostat/switch.

DEVIreg™ Smart
Installation Guide12
Important: Do NOT press in the center of the display screen.
Press your fingers under the side of the front part and pull
toward you until it releases from the snap lock:
To ensure that the batteries are fully charged, the ther-
mostat/switch shall be connected to main supply for
minimum 15 hours. The current time and day is kept for
24 hours if mains supply is off.
All other settings are stored permanently.

DEVIreg™ Smart
13Installation Guide
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 different buttons,
numbers and symbols.
Thermostat Switch
1
4
2
3

DEVIreg™ Smart
Installation Guide14
Nr. Type Description
1 Button/Symbol Control button
2 Button/Symbol Arrow Up button
3 Button/Symbol Arrow Down button
4 Symbol 3 digit 7 segment numbers with
comma separator. “On”/”Off” text.
Symbol indications
Indication Mode/State Description
Blue - blinking Access Point
Mode
Thermostat/switch ready for
set-up
Blue Access Point
Mode
Smart phone connected
directly to thermostat/switch
for set-up
Red - blinking Fault state Displays Error code
Red - slow
pulsing
Active Mode Indicating heating the floor
(Relay on)
Green -
constant
Active Mode Thermostat/switch active and
connected to WiFi(Relay off)

DEVIreg™ Smart
15Installation Guide
Green –
blinking
Active Mode
& Access
Point Mode
Thermostat/switch waiting for
confirmation of action
Arrows –
blinking rapidly
when touched
Active Mode Safety lock is on
Interaction directly on thermostat
Function Button Description
Turn thermo-
stat/switch on
1. Touch any
button
2. Touch control
button (1)
Thermostat/switch turn
on and display tempera-
ture or On/Off states
Turn thermo-
stat/switch off
1. Touch any
button
2. Touch and hold
control button (1)
Thermostat switch
display will turn on
Thermostat switch count
down and switch off
Adjust set-
point
Up (2) Increases active mode/
temporary set point
Down (3) Decreases active mode/
temporary set point

DEVIreg™ Smart
Installation Guide16
Frost protec-
tion
Touch and hold
Control (1) for
1 sec.
Deactivate frost protec-
tion
Safety lock Touch and hold
Up (2) + Down (3)
for 3 sec.
Activate/Deactivate
safety lock
Factory restore Touch and hold
Control (1) + Up
(2) for 5 sec.
After that touch
Control (1) again
to confirm
Activates factory restore
state
Away mode Touch and hold
Control (1) for 1
sec. to deactivate
Away mode
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.

DEVIreg™ Smart
17Installation Guide
Error
type
Nr. Description Solu-
tion
Need restart
Floor
Sensor
discon-
nected
E1 Connection
to sensor is
lost
Contact
service
The thermostat
requires a restart
to operate again.
Floor
Sensor
short-
circuited
E2 Sensor
short-
circuited
Contact
service
The thermostat
requires a restart
to operate again.
Ther-
mostat
over-
heated
E3 Thermostat
is over-
heated,
heating is
turned off
Wait
until
ther-
mostat
cools
down
The thermostat
requires no
restart, but will
start heating
when the
temperature is
lowered
Unrecov-
erable
error
E4 Room
temperature
sensor value
too high or
too low
Contact
service
The thermostat
requires a restart
to operate again.

DEVIreg™ Smart
Installation Guide18
Communication Error Codes
Communication
error
Nr. Description
Wrong SSID or
password
C1 STA trying to connect to the AP
No IP address C2 STA - connection acquired, no IP
yet, waiting for configuration data.
No internet con-
nection
C3 STA connected and has an IP from
DHCP server.

DEVIreg™ Smart
19Installation Guide
6 Configuring
Download App
Download the DEVIsmart™ app from App Store
or Google Play or at devismart.com.
Find WiFi name and password for the WiFi
network, that you would like to connect your
thermostat/switch to. If in doubt contact net-
work administrator or internet service provider.
Identify your floor 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 configured
using your iPhone and Android device.
Open the DEVIsmart™ App. Follow instructions and set-
up flow in the App.
DEVIreg™ Smart indication
The DEVIreg™ Smart shows “–”indicating that power is
ON, but still need to be configured.

DEVIreg™ Smart
Installation Guide20
7 Settings
IMPORTANT DURING THER-
MOSTAT SET-UP
Select whether only a floor
sensor or a combination of room
and floor sensor should be used.
A “room only” option is also
available, but requires that
you have to break the small
plastic seal on the back of the
display module, e.g. using a
screwdriver; reset is needed;
it will be possible to set the
maximum floor temperature