Due to the continuous further development of the device software (firmware), the range of functions described here or the method of operation may differ. The current version of the manual can be downloaded from the shop under the Article Downloads Tab.
Important notes before commissioning:
Security:
When handling products that are supplied with electrical voltage, the applicable VDE regulations must be observed, in particular VDE 0100, VDE 0550/0551, VDE 0700, VDE 0711 and VDE 0860.
If it is not clear from these instructions for the non-commercial end user which electrical characteristic values apply to the unit, how external wiring is to be carried out, or which external components or additional devices may be connected and which connection values these external components may have, a specialist must always be consulted for information. Before commissioning the unit, it must be checked whether this unit is suitable for the intended application!
In case of doubt, it is essential to consult specialists, experts or the manufacturers of the assemblies used! Please note that operating and connection errors are beyond our control. Understandably, we cannot accept any liability for damage resulting from this.
Description Display symbols
Note: The Mi-Heat WT8 Wifi model does not have the fan/cooling functions, and the symbols on the unit buttons may be printed differently.
Open the settings menu:
Code | Function | Default setting |
01 | Temperature calibration (-9.9 – 9.9°C / 9-9°F) | Standard: -3°C |
02 | Hysterese (0,5-10°C / 1-10°F) | Standard: +-1°C |
03 | Upper temperature limit (5-95°C / 41-99°F) | Standard: 50°C |
04 | Lower temperature limit (5-47°C / 41-99°F) | Standard: 5°C |
05 | Frost protection function (ON/OFF) | Standard: OFF |
06 | Temperature Unit (°C / °F) | Standard: °C |
07 | Sensor mode (IN: internal sensor only, OUT: external sensor only, ALL: both sensors) | Standard: IN |
08 | Soil limiting temperature (20-90°C / 68-99°F) | Standard 35°C, for electric underfloor heating we recommend max. 27°C |
09 | Setting for weekly programming 12345: 5/2 = Mon. – Fri. & Sat.+Sun. 123456: 6/1 = Mon. – Sat. & Sun. 1234567: 7/0 = Mon. – Sun. | Standard: 12345 |
10 | Not relevant for heating operation | Standard: 00 |
11 | Not relevant for heating operation | Standard: 0 |
12 | Key lock (child lock): 00: Lock inactive when screen off / lock all when lock on. 01: Lock active when screen off / lock everything when lock on. 02: Lock active when screen off / lock all functions except fan, up and down when lock on 03: Lock active when screen off / lock all except On/Off when fuse on | Standard: 00 |
13 | Behaviour on power recovery: 00: remains switched off 01: is switched on 02: restores the previous state | Standard: 00 |
19 | Factory settings | Press the Eco button for 3 sec. |
Description Connection terminals
Setting weekly programme (Auto mode)
Press the M button for 3 seconds to edit the Auto mode setting.
Sensor error
Please select the operating mode of the sensor correctly. If the error E0/E1 is displayed, the thermostat remains switched off until the error is corrected.
The front unit of the thermostat has a snap-on mounting.
App integration and programming:
In order to be able to set up or programme the thermostat via smartphone app, the free TuyaSmart app must first be downloaded from the respective app store and installed.
Minimum smartphone requirements: iOS9 or newer, Android 4.1 or newer
The following steps show how to set up the TuyaSmart app and how to integrate and program the thermostat.
Disposal notes
Do not dispose of this device in household waste! Electronic devices must be disposed of at the local collection points for electronic waste in accordance with the Waste Electrical and Electronic Equipment Directive.
Note on conformity
The CE mark is a free trade mark that is exclusively addressed to the authorities and does not contain any assurance of properties.
Documentation © 2022 Mi-Heat Heizsysteme GmbH
All rights reserved. No part of this manual may be reproduced in any form or by any means without the written permission of the publisher. This manual may contain typographical defects or misprints. We assume no liability for technical or printing errors and their consequences. V1.2 (11/2022 – unit software: 3.0.12 / MCU 3.0.12)
Declaration of conformity
Mi-Heat Heizsysteme GmbH hereby declares that the product WT8 is in compliance with the RoHS Directive 2011/65/EU, the EMC Directive 2014/30/EU, the Low Voltage Directive 2014/35/EU and the Radio Equipment Directive 2014/53/EU.
The detailed declaration of conformity can be found under https://infrarot-fussboden.de/
Mi-Heat Heizsysteme GmbH
Ol Streek 39a
26607 Aurich
Germany
Internet: mi-heat.com
E-Mail: info@infrarot-fussboden.de
Download Manual:
MI-HEAT WT8 Wifi Thermostat INSTALLATION INSTRUCTION
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