Mi-Heat Optima Wlan Classic User manual

Thermostat Optima Wlan Classic
Thank you for choosing our smart
thermostat Optima Wlan Classic.
Features:
•Programmable/operable via app
•Compatible with Amazon Alexa, Google Assistant and IFTTT
•Large display with dark background and white figures
•Easy installation
•Flush mounting
•Weekly program 4 switching times per day (App)
•External sensor or room sensor
•Open window detection only with room sensor
Technical data:
•Operating voltage: 230V/AC
•Switching capacity: 3600W/16A (resistive load) / 2000W/8.7A (capacitive load)
•Switch contact: NO (potential-free contact)
•Backup memory: EEPROM
•WLAN frequency: 2.4Ghz, Wi-Fi 802.11 b/g/n
•WLAN security: WPA2 personal (TKIP and AES)
•Temperature sensor: internal or external sensor
•Open window detection: yes only with room sensor, not with connected external sensor
•Temperature setting: 5°C - 35°C (0.5°C steps)
•Operating temperature: +5 ~ 65°C
•accuracy: +/- 0.5°C (+/- 1°F)
•Dimensions: 86mm x 86mm x 20+30mm (50mm)
•Display size: 64x45mm
•Colour: White
•IP protection class: 21 (sensor IP44).
•Certification: CE, ROHS, WEEE

Important information before commissioning:
-Please read the complete instructions before starting to install the thermostat.
-The thermostat must be installed by a qualified person.
-Only use the thermostat as described in this manual.
-Always disconnect the power supply during installation work.
Safety notes:
When handling products which 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.
- Before opening the device, make sure that it is de-energized.
- Tools may only be used on the device if it has been ensured that it is disconnected from the supply
voltage and that any residual electrical charges stored in components have been discharged beforehand.
- Live cables or lines to which the device is connected must always be checked for insulation faults or
breakages.
- If a fault is detected in the supply line, the device must be taken out of operation immediately until the
defective line has been replaced.
If these instructions is not clearly state for non-commercial end users in regard to, which electrical
characteristic values apply to the device, how external wiring is to be carried out, or which external
components or accessories may be connected and what connected loads these external components may
have, a specialist must always be requested for information. Before commissioning the device, check
whether it is suitable for the planned application!
In case of doubt, it is absolutely necessary to consult experts or the manufacturers of the modules used!
Please note that operating and connection errors are beyond our control. We assume no liability for any
damage resulting therefrom.

Description of Device keys and LEDs
1. increase temperature
2. reduce temperature
3. mode button
4. short key press = On/Off key to switch the
thermostat on or off completely, long key
press (5 sec.) activates the pairing mode
for connection to the Wlan (the
thermostat must be switched on for this)
Connecting the thermostat:
The Optima Wlan Classic can be used for various applications, as the thermostat has a potential-free
switching output (NO)! The external temperature sensor is used for temperature measurement, e.g. in the
floor in combination with an electric floor heating system.

Description Terminals
1 & 2
3 & 4
5
6 & 7
Output terminal for connecting the
consumer (NO - potential-free), for
connection options see item "Connection
of the thermostat".
Input terminal for the 230V/AC supply
voltage of the thermostat
Grounding (optional / if available)
Input terminal for connecting the
external temperature sensor
Description Display symbols

App integration and programming:
In order to setup or program the thermostat via Smartphone App, the free TuyaSmart App must first be
downloaded and installed from the respective App Store.
Minimum Smartphone requirements: iOS9 or newer, Android 4.4 or newer
TuyaSmart (Tuya Inc.)
App für Android
App für Apple iOS
The following steps show the setup of the TuyaSmart App as well as the integration and programming of
the thermostat.
When starting the app for the first time,
you have to create a Tuya user account.
Agree to privacy policy to continue.
Select your country, enter your email
address, and then tapping on "Get
Verification Code". Alternatively, the code
can also be requested by SMS by tapping
on "Mobile Phone Number" at the top.

Enter the verification code you received by
e-mail or SMS.
Set the password for the Tuya user
account and press "Finish".
Now the thermostat can be integrated by
touching "Add device".
To integrate a thermostat, tap "Small
domestic appliance" on the left and then
select "Thermostat" on the right.
Select WLAN network (SSID) of the existing
router and enter the corresponding WLAN
password.
Touch "Next Step" and then touch "Next".

Start teach-in mode on the device: Switch
on the device, then press the On/Off
button for approx. 5 seconds and then
briefly press the ▲button once; the Wlan
symbol flashes in the top right-hand corner
of the display. The app will now search for
available devices that are in teach-in
mode.
If a device was found, any name can now
be assigned. After tapping "Finish" the
integration is successfully completed.
Main view of the thermostat. The setpoint
temperature (setpoint) is large in the
middle, the current room temperature is
below. The setpoint temperature can be
changed by means of ▲▼ or a selector
circuit. The functions of ON/OFF, mode,
clock symbol, gear symbol, pin symbol are
explained in Figs. 13, 14, 17, 15, 18.
The thermostat can be switched off or on
by touching "ON/OFF".
By touching one of the three available
modes (Manuel,ECO,Auto) the operating
mode of the thermostat can be changed.
Here you can set the weekly program (16),
child lock, temperature calibration,
max/min. target temperature, frost
protection and restore the factory settings
of the thermostat.

An individual heating profile can be stored
here for each weekday.
Here you can program different timers for
the time controlled switching on or off.
Shows the further settings and integration
possibilities in the language control
systems Amazon Alexa and Google
Assistant.

Standard values:
The following thermostat functions can also be set without the app.
Function
Key Activation
Open the settings menu
Switch the thermostat off with the 4 (On/Off)
button, OFF is shown on the display. Press the ☼
button and ▲button simultaneously for approx.
5 seconds. The display shows 01 in the upper left
corner.
By pressing the ☼button several times, you can
switch between the following settings. The value
of each setting can be changed using the ▲and
▼buttons.
1
Temperature Calibration internal sensor
-8 –+8°C, Standard 0°C
2
Temperature limitation max.
5 –90°C / aus, Standard 35°C
3
Temperature limitation min.
5 –90°C / aus, Standard 5°C
4
Sensor Type
0: internal Sensor, 1: external Sensor, 2 internal
and external Sensor, Standard 2
5
Frost protection
(-- off) and 5 –15°C, Standard 5°C
6
Temperature Calibration external sensor
-8 –+8°C, Standard 0°C
7
Display room or floor temperature
Only the current temperature is displayed here if
sensor type 2 is set under 4
8
Overheating protection Soil temperature
10 –80°C, Standard 32°C, for electric floor
heating we recommend max. 27°C
9
Hysteresis
0 –3°C, Standard 0°C
11
Key lock
1: activated, 0: deactivated, Standard 0
12
ORD –Open window detection
ON: activated, OFF: deactivated, Standard OFF
13
ORD –Detection time
2 –30 minutes, Standard 15 minutes
14
ORD –Temperature difference selection
(in the recorded time)
2,3,4°C, Standard 2°C
15
ORD –Delay time of ORD selection (return
to normal state)
10 –60 minutes, Standard 30 minutes
17
Factory settings
Set "1" with the ▲or ▼key and ???
3xxx
Software Version
-
0xxx
Software Version
-
31
Not documented
-
32
Not documented
-

Set date/time and weekly program:
To set the current time and day, press the ☼key for about 5 seconds. The time flashes in the upper left
corner. The values can be changed using the ▲and ▼buttons. Press the ☼key to accept the set value
and jump to the next value.
After the time and day have been set, the weekly program can be set directly afterwards.
Weekly program (factory setting):
Period
1
2
3
4
Day
Time >
Temp.
Time >
Temp.
Time >
Temp.
Time >
Temp.
1 –Mo.
7:00
22°C
08:30
19°C
17:00
22°C
22:00
19°C
2 –Tue.
7:00
22°C
08:30
19°C
17:00
22°C
22:00
19°C
3 –Wen.
7:00
22°C
08:30
19°C
17:00
22°C
22:00
19°C
4 –Thu.
7:00
22°C
08:30
19°C
17:00
22°C
22:00
19°C
5 –Fri.
7:00
22°C
08:30
19°C
17:00
22°C
22:00
19°C
6 –Sat.
08:00
22°C
08:30
22°C
17:00
22°C
23:00
19°C
7 –Sun.
08:00
22°C
08:30
22°C
17:00
22°C
23:00
19°C
In the following table you can enter the weekly program you have set:
Period
1
2
3
4
Day
Time >
Temp.
Time >
Temp.
Time >
Temp.
Time >
Temp.
1 –Mo.
2 –Tue.
3 –Wen.
4 –Thu.
5 –Fri.
6 –Sat.
7 –Sun.

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 © 2020 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.
V1.0 (07/2020)
Mi-Heat Heizsysteme GmbH
Ol Streek 39a
26607 Aurich
Deutschland
Internet: mi-heat.de
E-Mail: [e-mail]