Danfoss DEVIreg Basic Intelligent Electronic Timer Controlled Floor Thermostat Installation Guide

Installation Guide
DEVIreg™ Basic
Intelligent electronic timer-controlled Floor thermostat with App control

Introduction

The DEVIreg™ Basic is an electrical floor heating thermostat with adaptive timer support which provides an effcient way to control your electrical floor heating system by floor temperature.
The thermostat is special designed for wall mounted installation in standard EU wall mount boxes, in and on wall, and can be used for control of total heating as well as comfort heating of the room. The thermostat supports a selection of commonly used frame systems for 55×55 (inner geometry) framing systems.
Among others, the thermostat has the following features:

• ECO design LOT20 compliance
• In App setup for specific flooring and room types.
• Support for 55×55 like frame systems.
• Simple knob operation for temp. control and features.
• Bluetooth connectivity on 2.4 GHz frequency at a maximum power of 10 dBm.
• Access to thermostat via App for settings for easy access, setup, or remote troubleshooting. Firmware update via DEVI Control App.
• Works out of box with default parameters as thermostat.

Standard Compliance

Electrical safety, Electro-Magnetic Compatibility and Radio aspects for this product is covered by the compliance with the following relevant standards:

• EN/IEC 60730-1 (general)
• EN/IEC 60730-2-7 (timer)
• EN/IEC 60730-2-9 (thermostat)
• EN 301 349-1 and EN 301 349-17 (EMC standard for radio equipment operating in the 2,4 GHz band)
• EN 300 328 (Effcient use of radio spectrum for radio equipment operating in the 2,4 GHz band)

SIMPLIFIED EU DECLARATION OF CONFORMITY
Hereby, Danfoss A/S declares that the radio equipment DEVIreg™ Basic is in compliance with Directive 2014/53/EU.
The full Declaration of conformity can be found on https://assets.danfoss.com/approvals/latest/281716/ID455643625457-0101.pdf

Safety instruction

Make sure that the mains power supply to the thermostat is shut off before starting the installation.
Important: When the thermostat is used to control a floor heating element, always use a floor sensor, and never set the maximum floor temperature to more than the manufacturer recommends for the specific flooring type. The device is limited to 35 °C floor temperature, due to compliance requirements. In special cases the limit can be extended to 45 °C floor temperature after the unrecoverable breakout has been performed. Based on the setup in the app the thermostat has maximum temperature limitations imposed based on our recommendations.

• Electrical heating thermostats must always be installed according to local building regulations and wiring rules. Installation must be carried out by an authorized and/or qualified installer.
• The thermostat must be used in a wall mounted installation supplied through an all-pole disconnection switch (fuse).
• 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.
• The device is designed for permanent operation.

Instructional video material
To make it easy we show the features and functions of the product in videos that are present on our YouTube channel.

http://scn.by/krzp87a5z2algp

Installation Guidelines

Follow these guidelines when placing the thermostat for optimal user experience of the thermal control.

| Install the sensor more than 50 cm from window and door openings.
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| The thermostat must not be installed in direct wet areas (Zones 0, 1 and 2). Always follow local regulations regarding IP classes, this doesn’t mean that the thermostats can’t be installed in bathrooms.
| Install the thermostat more than 50 cm from window and door openings.

Installation steps

1. Unpack the thermostat. Make sure all parts are delivered (1 pc. thermostat unit ,1 pc. Power supply, 1 pc. Frame, and 1 pc. wire sensor) along with the instructions written in local offcial language.|
2. Place the floor sensor in the Flexpipe and make sure the sensor element is properly fixed
inside a Flexpipe. The Flexpipe must guide the sensor cable all the way to the wall/connection box. Our mats have this product included. sold separately as (140F1114).|
3. The bending radius for the Flexpipe must be more than 50 mm.
4. Make sure the floor sensor is located with equal distances between two heating cables (> 2 cm) located at a representative position.
5. For thin floor constructions: the Flexpipe should be flush with the sub- floor surface, countersink theFlexpipe if possible.
For thicker constructions: the Flexpipe including the sensor should be located such that the sensor is exposed to a representative heating level, our recommendation is still that the sensor must be located
equidistant between the cables or mat runs.|
6. Ensure that the wiring circuit is disconnected and voltage free, turn off the all-pole disconnect.
7. Connect the wires according to the wiring diagram on back of the power supply of the thermostat. Ensure that the terminals are properly fastened and wires are securely connected.|
8. The screen/PE wire from the electric heating element must be connected to the PE wire from the main power supply using a separate connector.|
9. Fasten the thermostat’s power supply to the wall terminal box using screws in minimum 2 of the designated holes on the power supply unit.
Notice: place the thermostat according to the – arrow|
10. Attach the frame and the Top frame to the thermostat. After that attach the thermostat to the Power supply unit by a softly press until all parts firmly connected.
11. Carefully attach the thermostat to the Power supply – take care that the connector pins are not bent.|
12. After electrical installation is completed, turn on the all-pole disconnect (fuse).
13. The thermostat is now ready for use.| The thermostat does not require any settings to be performed in the app, however this will be required to modify advanced features, schedules and more.
14. Dismount thermostat front for replacement.| Perform steps 11 and 10 carefully in the mentioned order, detachment can be done without tools or with a flathead screwdriver.

Connection scheme

Technical specifications

Idle: <200 mW
Contact rating:
– Resistive load
– Inductive load| 230 V ~ 16 A/3680 W
Cos φ = 0,3 max. 1 A
Floor sensor| NTC 15 kΩ @ 25 °C, 3 m. (default)*
Control| PWM (Pulse Width Modulation)
Temperature control
range| Floor temperature:  5 °C to 35 °C (45 °C after breakout)
Ambient temperature range| 0 °C to 35 °C
Frost protection| 4 °C to 14 °C (default value 5 °C)
IP class| 21
Protection class| Class II –
Maximum cable size| 1 x 4 mm² or 2 x 2,5 mm²  /terminal
Controller type| 1B
Software class| A
Pollution degree| 2 (Domestic use)
Over voltage category| III
Temperature for Ball pressure test| 75 °C
Storage temperature| -25 °C to 60 °C
Timer functions| 3 periods per day. Resolution of timer is 30 minutes.
Dimensions| 85 mm x 85 mm x 20-24 mm (in wall depth: 22 mm)
Weight| 194 g

• standard DEVI sensor 140F1091 3m.

User Guide

Product interface

• When knob is in temp adjustment mode the thermostat will not run the time schedule program.

in schedule mode.
In this position the thermostat is ready for App configuration/modification.
Frost protection | In this position the thermostat is operating in frost protection mode.
Temp adjustment| By turning the knob clockwise the temperature will increase (1..6)

User interface/ daily use
On the thermostat the temperature can be directly adjusted using the knob/dial by setting the indicator on the wanted floor temperature, this will disregard any schedule, however, still adhere to any set min/max limitations (can be set in the app).
The positions Frost protection, Timer schedule or OFF can be selected using the knob/dial.
Selecting the Frost protection mode will see the thermostat ensure that the frost temperature is maintained, this value can be set between 4-14 °C (default 5 °C) in the app.
Selecting the timer schedule / app communication mode the device will be connectable in the DEVI control app, the communication is done via Bluetooth 4.2, where temperatures, settings, schedule, limits and more can be set to the desired level.
Selecting the OFF mode will disable the thermostat completely.
When the thermostat is in all other positions than Timer schedule/App communication the app can only display limited information, in OFF the app and thermostat will be completely OFF and nothing will be indicated or communicated to the app.
To pair the thermostat with the app, place the thermostat in the App communication position and start the process in the app , the device will blink with the communication indicator. After the app has initiated the communication with the thermostat, the user needs to turn the dial out to manual temperature setting and back into the App communication position, this is to validate with what thermostat the paring is wanted.

• Temperatures above are the temperatures that can be expected at the floor sensor location.
  Do not use breakout with thin heating mats.

Indicators
The indicators are shine through and are within the knob of the product, these will light up when needed.

All indicators fade out after a duration (default 20 seconds) unless an error is present. Additionally, indicators will “wake up” upon manual interaction with the thermostat, heating state change, schedule event, app connection or errors/warnings appearing.

Heat indicator| • This indicator lights up and turns red when the thermostat switches on and delivers current to the electric heating element. After some seconds the indicator fades out.
• This indicator lights up and turns green when the thermostat is powered and OK.
After some seconds the indicator fades out.
• The indicator flashes red when an error is present, this will persist until error is alleviated, heating will not be activated/ activatable.
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Data communication| • This indicator flashes white when initiating data communication between the
thermostat and communication device unit.
• The indicator flashes in part of the paring process
• The indicator is constant lightning white when communication between the thermostat and communication device is present.
The indicator turns off when communication stops.
Schedule| • This indicator lights up white when the built in schedule changes from Non active to
active and vice versa. After some seconds, the indicator fades out.
• The indicator flashes in part of the paring process.
• This indicator flashes white when there are warnings. The warning will be present until
App communication is activated, however the indicator will only flash for a duration (default 20 seconds). Warnings will be displayed in the App.

Default settings and out of the box settings.
The DEVIreg™ Basic will have the following settings out of the box:
Maximum floor temperature: 28 °C
Minimum floor temperature 5 °C
If the thermostat is placed onto the schedule (clock) icon without having the app connected, the temperature is default 25 °C

Factory reset

To perform a factory reset the thermostat needs to be powered and correctly mounted, on the bottom of the device (circled below) is a pin hole, by pressing a needle into this pinhole a button will be activated, after 20-30 seconds of activation of this button the thermostat will perform a factory reset. All indicators will flash briefly to inform about successful factory reset.
The thermostat will briefly be rebooting please allow for up to 5 seconds for the thermostat to be back to a responsive state.
Performing an factory reset will reset errors and warnings.
Alternative method, the front cover on the thermostat can be removed using the slot on the bottom of the thermostat and the button can be activated with a finger or similar.
The factory reset can only be performed whilst the thermostat is powered.

Breakout
To enable the thermostat to go up to a floor temperature of 45°C, or to use the room only control functionality. a permanent modification must be made, this can invalidate your warranty on the product and connected products.
The higher maximum temperature limit or alternative control mode needs to be set in the app after the action has been performed.
To best perform the action the thermostat unit needs to be dismounted from the power supply, on the back of the thermostat there is a hole as shown below, to perform the breakout the plastic seal in the hole needs to be broken and thereafter the PCB trace needs to be broken. The action is best performed with a flathead screwdriver or similar as shown below.
whilst doing the breakout please take care not to damage any other components on the circuit board.

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http://scn.by/krzp87a5z2algc| http://scn.by/krzp87a5z2ale

REFERENCE TO APP MANUAL
To pair the thermostat with the app, initiate the app and follow the instructions provided in the app.

App enabled functions

• wizard assisted installation scheduling
• pre-heating (adaptive heating)
• thermostat limits adaptation
• control mode changeability
• child lock
• settings lock
• warning and error readout
• information export
• help function
• complete overview of data and functions

Warnings and error messages
Warning table

active (Set in App) but dial has been turned to set a manual setpoint
W2| Invalid clock| If time is totally invalid – less than 2021 or above 2050 or use production date or first time connected to App
W3| Child lock is enable| Will be active if child lock is enable and the user tries to change the setpoint or mode with the potentiometer (or encoder)
W5| Set temperature not achievable| Warning given when the room/floor temperature from schedule or manual setpoint can’t be reached within 40 PWM periods (Output from heating control)
W8| Maximum Floor Temperature Limit reached| Set if Maximum Floor Temperature is reached while in Combi Mode while Room Temperature is not at Set point
W10| Temperature set above maximum temperature limit| Set, if maximum temperature is lower than the current temperature knob/potentiometer is pointing at. Like Max set to 25°C and knob
is set to 27°C

Error table

or local Danfoss
service| The thermostat requires a restart
to operate again
Floor Sensor short-circuited| E2| Sensor shortcircuited| Contact installer or local Danfoss service| The thermostat requires a restart
to operate again
Thermostat overheated| E3| Thermostat is overheated, heating is turned off.| Wait until thermostat cools down| The thermostat needs no restart but will start heating when the temperature is lowered
Room sensor disconnected| E4| Room temperature sensor value too
low.| Contact installer or local Danfoss
service|
Room sensor short-circuited| E5| Room temperature sensor value
too high.| Contact installer or local Danfoss
service|
Unrecoverable error, Power supply| E6| Power supply is detected as defective| Contact installer or local Danfoss
service|
Potentiometer / dial error| E9| Potentiometer is  detected as  defective| Contact installer or local Danfoss
service| The potentiometer is reading a value that is outside of the given range
Invalid communication| E10| Bluetooth communication
error| Retry / Contact installer or local Danfoss service| Bluetooth communication has encountered an unexpected / faulty command
Unrecoverable error| E11| Unrecoverable error| Contact installer or local Danfoss
service|

Eco Design Sheet

To comply with ECO design regulations for electric local space heaters 1188/2015 the following table is to be filled in with the specifics of the heating system. Herein the thermostat information for this specific product is prefilled, please fill any/all blank slots.

Information requirements for electric local space heaters
Model identifier(s): DEVIreg™ Basic

Minimum heat output
(indicative)| P
min| | kW| manual heat  charge controlwith room and/ or outdoor temperature feedback| [yes/no]
Maximum continuous
heat output| P
max,c| | kW| electronic heat charge control with room and/ or outdoor temperature feedback| [yes/no]
Auxiliary electricity
consumption| | | | fan assisted heat output| [yes/no]
At nominal heat output| el
max| <0,00062| kW| Type of heat output/ room temperature control (select one)|
At minimum heat output| el
min| <0,00062| kW| single stage heat output and no room temperature control| [no]
In standby mode| el
SB| <0,000175| kW| Two or more manual stages, no room
temperature control| [no]
| | | | with mechanic thermostat room temperature control| [no]
| | | | with electronic room temperature control| [no]
| | | | electronic room temperature control plus day timer| [no]
| | | | electronic room temperature control plus week timer| [yes]
| | | | Other control options (multiple selections
possible)|
| | | | room temperature control, with presence
detection| [no]
| | | | room temperature control, with open window detection| [no]
| | | | with dist ance control option| [no]
| | | | with adaptive start control| [yes]
| | | | with working time limitation| [no]
| | | | with black bulb sensor| [no]
Contact details| Danfoss A/S, Nordborgvej 81,
6430 Nordborg, Denmark| | | |

Warranty

A 2-year product warranty is valid for:

• thermostats incl. DEVIreg™ Room.

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 that was no later than 2 years from production date on the following conditions:
During the warranty period Danfoss shall offer a new comparable product or repair the product if the product is found to be faulty by reason of defective design, materials or workmanship. The decision to either repair or replace will be solely at the discretion of Danfoss.
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 electricians. 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 effiective 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/

WARRANTY CERTIFICATE

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

Disposal instruction

This symbol on the product indicates that it may not be disposed of as household waste.
It must be handed over to the applicable take-back scheme for the recycling of electrical and electronic equipment.

• Dispose of the product through channels provided for this purpose.
• Comply with all local and currently applicable laws and regulations.

Danfoss A/S
Nordborgvej 81
6430 Nordborg
Denmark
Danfoss A/S
DEVI – devi.com + +45 7488 8500 + E-Mail: EH@danfoss.com
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 specifcations already agreed.
All trademarks in this material are property of the respective companies. DEVI and all DEVI logotypes are trademarks of Danfoss A/S. All rights reserved.
140R0040 | AN461038960054en-010105 Produced by Danfoss © 2024.05

http://devi.com

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