HEATIT 54 305 41 WiFi6 Thermostat Installation Guide

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The device has implemented ZeroX technology.  

This technology makes sure the relay switches at 0V when  

turning on and off. With this technology the thermostat will  

have a much longer lifetime.  

it clicks into place. In order to get power metering values, the  

load needs to be connected to both heating L + N.  

A2  

A2F  

PWER  

External room sensor  

External room sensor + Floor sensor  

Power regulator mode (no sensor used)  

TECHNICAL DATA  

HEATIT  

PRODUCT  

DOCUMENTS  

Protocol  

Rated voltage  

Max load  

Wi-Fi 2.4GHz/BLE  

230VAC 50Hz  

3600W 16A (resistive load)  

Never change the front from one thermostat to another.  

WIFI6  

Quick Guide  

Contactor recommended for loads above 13A  

16A  

<2W  

The device can withstand a load of max. 16A/3600W at  

230VAC. We recommend a contactor for loads above 13A.  

ADD/REMOVE  

NOTE: Some types of floor require that a floor sensor is  

connected in order to limit the floor temperature to a maximum  

of 27°C (check the manual from the floor manufacturer). When  

the thermostat is used in (AF or A2F) the floor limiter FHI is  

automatically set to 27°C. When using any other sensor type  

(A, F or A2) the minimum and maximum limits are 5°C and 40°C  

respectively.  

Max current  

Power consumption  

Power regulator  

Upon connecting the device to power, it will automatically  

enter add mode for a duration of 60 minutes. During this time  

the device can be added to the app without starting add mode  

on the thermostat.  

Time cycle 30 min.  

Article no.  

Doc. version  

Doc. date  

INSTALLATION DISCLAIMER  

Ambient temperature 5°C to 40°C  

Temperature range 5°C to 40°C  

Storage temperature -30°C to 70°C  

54 305 41  

54 305 42  

54 305 43  

Installation must be done by a qualified electrician in  

accordance with national building codes. Before installation,  

disconnect the power to the device from the mains. During  

installation of the device, power to the device must be  

disconnected AT ALL TIMES!  

2024-B  

04.04.2024  

To remove a device, find the device in the ”MyHeatit” App and  

choose “Delete this device”. If the app is unavailable, or if the  

thermostat is unreachable from the app, perform a ”Factory  

Reset”.  

Hysteresis  

Humidity  

Compatible with NTC-  

sensor with values  

Screw terminals  

IP Code  

0.3°C to 3.0°C (default 0.5°C)  

10% to 85% RH  

FACTORY RESET  

Enter the menu by holding the center button for about 5  

seconds, navigate in the menu with the ”+” button till you see  

”FACT”. Press the center button until you see “-- --” blinking in  

the display, then hold for about 5 seconds to perform a reset.  

You may also initiate a reset by holding the right and center  

buttons for 60 seconds.  

6.8, 10, 12, 15, 22, 33, 47 or 100kΩ @ 25°C  

Max. 2.5mm2 2Nm  

IP21  

QUICK START  

Upon connecting the device to power, it will automatically  

enter add mode for a duration of 60 minutes.  

1. Switch off the mains voltage (disable the fuse).  

2. Open the junction box.  

3. Connect the wires according to the description in chapter  

“Connections”. Optional: Connect external wired sensors.  

4. After verifying the connections, switch on the mains voltage.  

5. In the ”MyHeatit” App, choose ’Add Device’, enter your Wi-Fi  

details, search for and select your device.  

Method 1: Wi-Fi and Bluetooth  

Add mode is indicated on the device by rotating LED segments  

in the display. It indicates this for 90 seconds until a timeout  

occurs, or until the device has been added to the network.  

Add mode may also be cancelled by performing the same  

procedure as for starting add mode.  

Size (LxWxH)  

84 x 84 x 45.5mm  

Approvals  

CE, Nemko  

When either of these procedures has been performed, the  

thermostat will perform a complete factory reset. The device  

will display “RES” for 5 seconds while performing a factory reset.  

When “RES” is no longer displayed, the thermostat has been  

reset.  

MAINTENANCE  

The product is maintenance-free.  

Indoor use only.  

1. Hold the center button for 5 seconds.  

White RAL 9003 White RAL 9010  

Black matt  

54 305 43  

The display will show ”OFF”.  

54 305 42  

54 305 41  

6. The thermostat will display “INCL” when the thermostat is  

successfully added.  

2. Press the ”+” button once to see “CON” in the display.  

3. Start the configuration mode on the thermostat by holding  

the center button for approximately 2 seconds.  

4. In the ”MyHeatit” App, choose ’Add Device’. Choose Wi-Fi or  

Bluetooth, and search for your device and select it.  

ERROR CODES  

Err  

INTRODUCTION  

NB! If adding/removing fails, Err (error) will appear in the display.  

Adding fail  

See Manual: Chapter “Add/remove”.  

Internal error  

Most probably a faulty unit. Contact support.  

Wi-Fi error  

Most probably a faulty unit. Contact support.  

Internal error  

Most probably a faulty unit. Contact support.  

Floor sensor error  

Heatit WiFi6 is an electronic thermostat designed for electrical  

heating. The thermostat can be controlled using the ”MyHeatit”  

App via Wi-Fi, Bluetooth (BLE), or by the buttons on the front of  

the thermostat. The thermostat has a user friendly interface.  

CONNECTIONS  

Err1  

Err2  

Err3  

Err4  

Max tightening torque for terminal screws: 2Nm.  

If the cable used has multiple strands, using a end sleeve is  

advised. The product allows for wiring of cables with a cross  

section of up to 1x2.5mm2.  

The device is now ready for use with default settings.  

GET THE MYHEATIT APP HERE  

NB! When the device is removed from the ”MyHeatit” App, the  

parameters are reset.  

Heatit WiFi6 has 3 modes; Heat - Cool and Eco.  

The thermostat fits in standard European junction boxes and  

may be used with most System 55 frames. It has a sturdy metal  

frame for secure fastening on the junction box. The thermostat  

has a built-in room temperature sensor. Two additional external  

temperature sensors may also be connected. The device has an  

open API and supports Amazon Alexa and Google Home (open  

API, Amazon Alexa and Google Home is pending).  

To access the terminal screws, hold the sides of the display and  

gently pull outwards to detach the front piece.  

If inclusion fails, please perform a ”Factory Reset”.  

You have chosen F, AF or A2F sensor mode without  

having a floor sensor connected, or the sensor may  

be damaged.  

Method 2: QR Code  

1. Hold the center button for 5 seconds. The display will show  

“OFF”.  

2. Press the ”+” button once to see “CON” in the display.  

3. Start the add mode on the thermostat by holding the center  

button for approximately 2 seconds.  

4. In the ”MyHeatit” App, “Add Wi-Fi device” or “Add Bluetooth  

device”.  

5. Press the QR Code button in the bottom right and scan the  

QR code on the device.  

Err5  

External sensor error  

You have chosen A2 or A2F sensor mode without  

having an external sensor connected, or the sensor  

may be damaged.  

The thermostat can communicate over a local API, where  

the user can make integration with a local gateway, server,  

controller that offers such a service.  

Err6  

Err7  

Overheating  

Contact your electrician.  

Overload  

Floor sensor  

NTC type 6.8, 10, 12, 15, 22, 33, 47 or 100kΩ.  

Contact your electrician.  

The installer can configure and set up the system via Bluetooth.  

After the system is set up, the installer can transfer the property  

to the customer. The customer can then add the system to  

their Wi-Fi network.  

Default 10kΩ.  

We develop and design our products according in accordance with our strict quality  

requirements (ISO 9001) and environmental requirements (ISO 14001). All electrical  

installations must be carried out by an authorized electrical installer. The product  

must be installed in accordance with our installers manual and national building  

codes. Any wrongful installation, misuse, damage of the product, is not covered  

under warranty. Updated documentation is available at www.heatit.com and/or  

documents.heatit.com. Heatit Controls AB can not be held liable for any type of  

errors or omittances in our product information. Product specifications may change  

without further notice.  

External sensor NTC type 6.8, 10, 12, 15, 22, 33, 47 or 100kΩ.  

CHOICE OF SENSOR  

DISPLAY ICONS  

ICON DESCRIPTION  

Default 10kΩ.  

The thermostat has multiple sensors and sensor modes. This  

lets you configure the thermostat to work correctly in most  

installations. The sensors and modes may be selected from  

either the local settings menu or via Parameter 2; ”Sensor mode  

(“OPER”)”.  

N

Power connection (Neutral) 230VAC.  

Heating cable N connection.  

Power connection (Live) 230VAC.  

Heating cable L connection.  

Heating N  

L

Heating L  

This icon will be displayed while the relay is on and  

the thermostat is in either Heating or Eco mode.  

Heatit WiFi6 has active power metering and it gives you real  

time information about your power consumption. It also  

allows you to set the power metering value manually in case of  

connection with a contactor.  

This icon will be displayed while the relay is on and  

the thermostat is in Cooling mode.  

INSTALLATION  

Available sensor modes:  

Position the thermostat and mount it into the junction box  

using 2 screws. Position the thermostat front over the part  

mounted in the junction box, then carefully press the front until  

F

A

AF  

Floor sensor  

Internal room sensor  

Internal room sensor + Floor sensor  

This icon shows the current signal strength.  

Org. doc. 02.04.2024  

Heatit Controls AB  

l

Läkarvägen 4, 454 31 BRASTAD, SWEDEN  

Phone: +47 61 18 77 77 l post@heatit.com – www.heatit.com  

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HEATIT 54 305 41 WiFi6 Thermostat Installation Guide Overview

Summary of Contents

• Page 1: The device has implemented ZeroX technology, ensuring relay switches at 0V for longer thermostat lifetime. To obtain power metering values, the load must connect to both heating L + N. The device can withstand a maximum load of 16A/3600W at 230VAC. A contactor is recommended for loads above 13A. Installation must be performed by a qualified electrician according to national building codes. The thermostat has a built-in room temperature sensor and supports additional external temperature sensors. Heatit WiFi6 has three modes: Heat, Cool, and Eco. The product is maintenance-free and designed for indoor use only. The thermostat can communicate over a local API for integration with local gateways or servers. The installer can configure the system via Bluetooth before transferring it to the customer for Wi-Fi network addition.
• Page 2: Inkludering/ekskludering Noen gulvtyper krever at en gulvføler er tilkoblet for å begrense gulvtemperaturen til maksimalt 27°C. Produktet tåler en belastning på maks. 16A/3600W ved 230VAC. Når enheten kobles til strøm, vil den automatisk gå i inkluderingsmodus i 60 minutter. Produktet skal installeres av autorisert installatør i henhold til norske byggforskrifter. Enheten er nå klar til bruk med standardinnstillinger. Heatit WiFi6 er en elektronisk termostat designet for elektrisk gulvvarme. Termostaten styres gjennom MyHeatit-appen via Wi-Fi, Bluetooth (BLE) eller via knappene på fronten. Alle elektriske installasjoner skal utføres av en registrert installasjonsvirksomhet. Heatit WiFi6 har aktiv strømmåling som gir deg oversikt over forbruket i sanntid. Produktet har implementert ZeroX teknologi for lengre levetid på releet.