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HEATIT 54 304 59 DIN Smart Thermostat Installation Guide

12

1. INTRODUCTION

HEATIT

PRODUCT

DOCUMENTS

Heatit DIN Smart Thermostat is an electronic thermostat

designed for electrical heatingand cooling. The thermostat can

be controlled via Z-Wave^®via a Z-Wave gateway. It can also be

controlled by Wi-Fi using the MyHeatit app, or via Modbus 485

and the buttons on the front of the thermostat. The thermostat

has a user friendly interface.

DIN SMART

THERMOSTAT

Z-Wave Installers manual

Firmware version

Document version

FW 1.0

Article no.

Ver-A

Document date

54 304 59

01.03.2025

Org. doc. date 01.03.2025

The Heatit DIN Smart Thermostat is a versatile solution for

both residential and industrial use. It functions as a standard

ﬂoor heating thermostat, oﬀering simple temperature control

with three modes: Heat, Cool, and Eco. Additionally, it features

a specially designed industrial function (INDU) that allows

it to handle setpoints ranging from -30°C to 85°C, making

it ideal for demanding industrial applications. It can also

be used as a plus/minus snow melting thermostat (PLUS),

adjusting temperatures for eﬃcient snow and ice melting on

outdoor areas, driveways, or stairs. With the Heatit DIN Smart

Thermostat, you get precise temperature control for a wide

range of purposes.

Heatit DIN Smart Thermostat

54 304 59

The thermostat clicks easily on a standard DIN rail and can

be installed in the main switchboard. The thermostat has

connection for two external temperature sensors.

TABLE OF CONTENTS

1. Introduction

22. Display on/oﬀ

While used on Wi-Fi, 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, without

needing connecting it to the cloud. The device also supports

Amazon Alexa and Google Home (Amazon Alexa and Google

Home are pending).

2. Statement regarding

products from multiple

manufacturers

23. Display icons

24. Child lock

25. Open window detection

26. Modbus

3. Behavior within the

Z-Wave network

27. Firmware update - OTA

28. Error codes

4. Installation Disclaimer

5. Quick Start

29. Safety features

30. QR-Code Placement

31. Security

To see more information regarding the functionality for the

Wi-Fi version, see the Wi-Fi manual of the product.

6. Connections

7. Installation

8. Add/Remove

32. Node Information Frame

33. Associations

Heatit DIN Smart Thermostat 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.

9. Factory Reset

10. Startup

34. Association Groups

35. Conﬁguration Parameters

36. Command Classes

37. Supported Command

Classes

11. Principles of regulation

12. Local settings menu

13. Display Menu structure

14. Standby and main screen

15. Temperature shown in

display

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.

38. Controlled Command

Classes

16. KWh value in menu

17. Size of load

39. Thermostat dimensions

40. Thermostat controls

41. Chart - Display menu

Structure

Heatit DIN Smart Thermostat has been developed for central

controlling systems and all the features are easily accessible

over MODBUS 485.

18. Choice of sensor

19. Selecting sensor value

20. Calibration

Product info

21. Brightness

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

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

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Name	HEATIT 54 304 59 DIN Smart Thermostat Installation Guide
Make	HEATIT
Language	English
Filetype	PDF (Download)
File size	1.07 MB

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Heatit 54 304 DIN Manual: Questions and Answers

Heatit 54 304 DIN specifications

Power supply	230VAC 50Hz
Setpoint range	2°C to 40°C
Differential	0.3°C to 3.0°C (default 0.5°C)
Operating temperature	5°C to 40°C
Storage temperature	-30°C to 70°C
Humidity	10% to 85% RH
IP rating	IP21
Communication	Z-Wave, 868.4MHz
Power consumption	<2W

Full specifications, page 12

How do I clear a sensor error on the Heatit 54 304 DIN?

Disconnect the device from mains power, check the wiring and sensor connections, then reconnect.

Turn off power to the thermostat.
Inspect all wiring and sensor connections for damage or loose contacts.
Repair or replace any faulty sensors.
Restore power to the device. Installation Guide, p. 5

What do error codes Err6 and Err7 mean on the Heatit 54 304 DIN?

Err6 signals overheating and Err7 indicates an overload exceeding 16A.

Error Code	Meaning
Err6	Overheating detected; relay switched off.
Err7	Overload detected (current draw over 16A); relay switched off.

Installation Guide, p. 5

Can the Heatit 54 304 DIN work with external room sensors longer than 50 meters?

No. The maximum length for an NTC sensor cable is 50 meters. Installation Guide, p. 12

What do the icons on the Heatit 54 display mean?

The thermostat shows a relay status icon. Other messages include Childlock activated or disabled, backlight on or off in standby, open window detected, and settings stored. Installation Guide, p. 12

How do I know if the Heatit 54 304 DIN has entered the settings menu?

Hold the middle button for 5 seconds. The display will show Success if you've entered the menu, or Fail if entry didn't work. Installation Guide, p. 9

Heatit 54 304 DIN compared with other Heatit thermostats

Specification	Heatit 54 304 DIN	Heatit Z-TRM6 DC Z Wave	Heatit Z-Temp3 is	Heatit Z-TRM3
Power supply	230VAC 50Hz	230VAC 50Hz	2.7VDC to 3.3VDC	230VAC 50/60Hz
Setpoint range	2°C to 40°C	5°C to 40°C	5°C to 40°C	5°C to 40°C
Differential	0.3°C to 3.0°C (default 0.5°C)	0.3°C to 3.0°C (default 0.5°C)	0.3°C to 3.0°C (Default 0.5°C)	0.3°C to 3.0°C (default 0.5°C)
IP rating	IP21	IP21	IP21	IP 21
Communication	Z-Wave, 868.4MHz	Z-Wave, 868.4MHz	Z-Wave, 868.4MHz	Z-Wave
Power consumption	<2W	<2W	<1W	<2.0W