TESLA TIHTS572 Smart Hot Water Cylinder Thermostat Installation Guide

TESLA TIHTS572 Smart Hot Water Cylinder Thermostat

SAFETY INFORMATION

The T-Smart Hot Water Cylinder Thermostat must be installed by a competent person or qualified engineer. Please read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition.

The installer must also ensure the immersion heater is fully immersed in water and is only subjected to ‘normal operating conditions’ in a domestic hot water system which conforms to BS699, BS1566 or BS3198 and in which the system temperature is no more than 75°C. No warranty is hereby given or implied in other uses except domestic.

The immersion heater must be fitted in accordance with current IEE wiring regulations and must be wired through a double pole Isolator or suitable controller which must have a contact separation of at least 3mm in all poles. It is essential that the immersion heater cap is never covered as this will potentially cause major problems with the working of the unit and can be very dangerous.

• Always isolate the mains supply before installing T-Smart.
• This unit must not be modified in any way.
• The immersion heater must be earthed.
• To reduce the risk of scalding, it is recommended that the control thermostat is set no higher than 65°C.

This appliance 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. Children shall not play with the
appliance. Cleaning and user maintenance shall
not be made by children without supervision.

WARRANTY

The Supplier warrants that as from the date of delivery for a period of 2 year the goods and all their component parts, where applicable, are free from any defects in design, workmanship, construction or materials. In the event of failure, we will only offer a replacement or refund of the faulty item. We will not be held responsible for any replacement or re-installation costs, travelling expenses etc.
Proof of purchase will be required for warranty claims.

Box Contents

Upper Cap

Lower Cap

T-Smart Thermostat

Link Wire

Immersion Heater

Description of Elements

1. Power On/Off
2. Switch between modes
3. Increase/decrease temperature in Manual mode
4. Heating in progress (yellow indicator)
5. Current mode indicator
6. WiFi connection and network status
7. Target temperature
8. Current water temperature

Blue WiFi Icon: Connection between phone & T-Smart
Orange WiFi Icon: Connected to WiFi
White WiFi Icon: No connection
Yellow Globe Icon: Has Internet
Green Globe Icon: Has remote connection

Note: By pressing the power button, T-Smart will turn off but this activity will not disconnect its power supply. The Anti-Legionella and Frost Protection modes will continue to work in the background.

Display – Operating Modes & Symbols

The T-Smart water heater has 5 user-selectable operating modes and 2 automatic built-in modes, working in the background and two modes in case of the detected system errors. Press the ‘Modes’ button to switch between the modes. All operating modes and functionalities are listed and explained in this user manual.

Manual
This mode allows you to manually set the desired water temperature, in the range between 10 and 70°C. To
set the temperature, use either the + or – buttons. The temperature changes by 5°C each time one of the buttons is pressed. If your water heater usage is unpredictable, in terms of hot water needs, this is the optimal mode for you.
ECO
In Eco mode, the water temperature is kept at 55°C. This temperature level enables optimal long-term water heater operation, in terms of energy savings, lower heat losses, hot water availability and heating element durability.
Timer
Timer mode, allows you to program the water heater in line with your needs. Water temperature can be set hourly, daily and weekly and saved as a personalized plan. The programming is done via a mobile application. Please read section 2.3 of this user manual for more explanation about mobile application and Timer mode usage.
Travel
Travel mode is recommended when you are not planning to use the heater for a longer period of time (i.e. when away from home.) In this mode, water temperature is automatically set to 10°C in order to prevent potential freezing and unnecessary energy consumption while users are absent.
Smart
Smart mode activates the advanced software for heating optimization, reducing energy consumption.
The smart function enables the water heater to learn hot water consumption habits and to adjust water heating to your needs. This means that hot water is available when needed, but made with major energy savings. The smart mode consists of two different phases:

During the first phase, which lasts 7 days, the software monitors your water consumption. This information is recorded and subsequently processed. Start recording by selecting the Smart mode. During the recording phase, the minimum temperature is maintained automatically at 60°C. When the recording phase is completed, the second phase and replication of your hot water consumption habits will start automatically.

The second phase starts the following week (after 7 recording days) and all data obtained in the first phase is being applied and replicated. Recorded data in the first week will be replicated until the Smart mode is reset. Reset and a new recording is recommended when hot water usage is changed. To reset and start the new recording, hold the “Decrease Temperature” (see Fig.3) button for 3 seconds, while being in Smart mode. The new recording phase will start automatically.

It is not recommended to activate other operating modes of the heater during the recording time. If you switch to another operating mode, the recording will be interrupted and your habits won’t be replicated in the second phase. This means that there will be no additional energy savings and no hot water prepared according to your needs in the following weeks.

Recorded data is stored in the water heater’s internal memory. Even long term electrical network failure will not affect stored data.

Note: If a power supply failure occurs during the recording phase, the data becomes invalid and Smart mode reset is needed.

You need to connect your mobile device with your smart water heater in order to use Smart mode.

If you have a very unstable and unpredictable hot water usage (i.e. unknown number of household members), Eco mode will suit you better than Smart mode.

For more details about Smart mode, please see our full user manual at www.tsmart.co.uk

BACKGROUND FUNCTIONS

Anti-Legionella
A built-in function, operating in the background. For additional safety, advanced software is constantly monitoring the water temperature. If the heater does not reach 60 °C for 15 days in a row, the Anti-Legionella cycle will be launched automatically and the water is heated
to 60 °C for 30 minutes. This process will remove all potentially harmful bacteria from the water.
Frost Protection
The smart thermostat prevents water temperature from dropping below 10°C. The water temperature is constantly kept at 10°C, in order to prevent harmful freezing in winter periods.
IMPORTANT:
The heater must not be exposed to temperatures below +2°C.
Note: Some of the functions are time related. Time is set automatically via Internet or mobile application.

T-Smart Installation

If you have purchased the T-Smart Accessory (TIHTS) only, please proceed to step 5.

1. Check your mains power voltage matches the voltage rating indicated on the label of the plastic terminal cover.

2. The immersion heater must be fitted horizontally. Heaters mounted horizontally are typically less than 450mm but should be at least 75mm shorter than the horizontal width of the tank into which it is fitted.

3. The immersion heater should only be installed in a system where the heating element is always below the water level such as in a cistern fed tank.

4. Install the heater into the tank using the gasket or
   “O” ring seal as supplied, tighten with a good fitting spanner to prevent any damage to the heater. Then fill the system with water according to your standard procedure to ensure that all air pockets are removed and check for leaks around the joint.

5. Remove the cap from the existing immersion heater. Keep the nut as you will need this later on.

6. Disconnect the Live and Neutral wires from the existing Immersion, and remove the Thermostat.

7. Connect the link wire to the T-Smart Thermostat.
8. Insert the T-Smart Thermostat body and ensure the terminals fit within the spade connectors.
9. Connect the Live and Neutral Wires to the T-Smart (Ensure the connections are good and solid)
10. Ensure all wires are secured into the wiring clamp in the head of the immersion
11. Pass the link wire through the centre of the lower cap and secure into place, ensuring the wire clamp is aligned with the cut out and the earth stud is showing through one of the pre-drilled holes.
12. Secure the lower cap section with the nut from the existing immersion.
13. Connect the Link Wire to the back of the LCD in the upper cap section, ensure you have made a good solid connection.
14. Connect the upper cap section and lower cap sections by aligning the arrows moulded into the cap sections, rotate the upper cap to engage the locking system. The upper cap can be rotated through 360 Degrees to ensure the T-Smart LCD is the right way up.
15. The cylinder must be full with water and the Immersion heater element is fully submerged before powering up.
16. Turn on the Fuse to enable power to the T-Smart and it will engage in its start-up process.

Mobile Application

Initial Setup

T-Smart has a built-in wireless communication module which enables its remote control via Android and iOS mobile devices.
To download the T-Smart application, please visit the Google Play store for Android and Apple iTunes Store (search TSmart) for iOS devices.
When you have downloaded the app, the shortcut icon will appear on your screen.

After downloading the app, you need to connect your mobile device to your smart water heater. In order to do that, please follow these steps:

1. Go to your mobile device settings and open available Wi-Fi networks
2. Select T-Smart /ESP network. Press ’’Connect’’ and Wi-Fi connection indicator on the LCD display will turn orange.
3. Open your T-Smart application
4. The initial screen will show the list of available water heaters (Fig. 8)
5. Select your water heater by clicking on its name. Press the refresh button in the upper left corner to refresh the page if you don’t see your water heater in the list. If the firmware update is required, please take a look at (Fig.14).
6. The main screen will appear (Fig. 9)
7. Select the settings button in the upper right corner and choose ’’Settings’’
8. In the Settings screen:
   a. In ’the ’Network’’ section, select the ’’Name’’ field to insert your home network name (Fig. 10 & 11)
   b. Select the empty field below the ’’Password’’ field to insert your home network password (Note: It is recommended to use WPA or WPA2 encryption for home network security) (Fig. 10 & 12)
   c. If you want to give your smart water heater a personalized name/nickname, select the empty field below the ’’Device Name’’ (this is optional, not related to the connection process) (Fig. 10 & 13)
   d. Select the button in the upper right corner to save the setup (wait for 5-10 seconds)
   e. Now you have linked your T-Smart to your network you can revert back to your preferred wifi link in your smart device settings and full control of your T-Smart will be enabled.

NOTE:
Should your home wifi network name or password change in the future, you will need to update you connection settings. ’’Settings Menu’’ is unavailable when using
internet connection and remote control. Please use this section when connected to your home Wi-Fi network.

When the initial setup is done, your mobile device is paired with your water heater and every other time the connection is made automatically. You need to repeat
the initial setup procedure only if you change your home network’s name and/or password. One water heater can be controlled via multiple mobile devices and vice versa, one mobile device can control multiple water heaters, but not at the same time.

Your T-Smart application will select the language that the mobile device uses. By default, it’s in English, but it will switch automatically to another language you set in your mobile device settings. Please contact support if your selected language is unavailable.

Fig.8 shows the initial screen with the list of available heaters. To be sure that all heaters are on the list, press the refresh button in the upper left corner to refresh the list. Current and set point temperatures are displayed in the initial screen beside the water heater’s name and selected operating mode.

IMPORTANT NOTICE: Please make sure your router is in close range from the water heater. If your router is far away (in a different house floor/store, many walls in between, etc.) you may have a poor and unstable connection between your mobile device and water heater or even no connection at all.
NOTE: Please make sure that your saved home Wi-Fi network has an internet connection. You will not be able to remotely control the water heater if your selected Wi-Fi network has no internet connection.

When you select your water heater from the device list, the firmware update might be suggested. This will happen if there is a higher software version available compared to the one uploaded to your water heater (see Figure 14).

Select ’’OK’’ and a firmware update will reboot your water heater and mobile app. This will ensure you are provided with the latest product version. In the initial setup, the firmware update is mandatory. If you select ’’Cancel’’, you will not be able to control the water heater with mobile devices which will affect the overall product functionality.

Periodically, your mobile application will be updated.

We strongly recommend you to accept these updates, which will enhance your water heater’s operation.

NOTE: Updates are unavailable when using internet connection and remote control. Please use this functionality when connected to your home Wi-Fi network.

Basic Design

Please read the initial setup section (Section 2.1) for the mobile app installation details. When you select your smart water heater from the device list, the application will automatically take you from the initial to the main screen. Figure 15 is showing the main screen.

1. On/Off button
2. Current water temperature
3. Button for switching between the operating modes
4. Button for setting/indicating set water temperature (depending on the mode)
5. Your smart water heater’s name/nickname
6. Navigation ribbon
7. ’’Go back’’ button
8. ’’Settings Menu’’ button

Operating Modes & Symbols

By using button 3 (see Fig. 15) you can select the desired operating mode. The drop down menu will let you choose between Manual, Eco, Smart, Timer and Travel modes
(Fig.17).

Manual Mode
This icon indicates you are in the Manual mode. Select the button for setting/indicating set water temperature and the drop down menu will appear. Scroll up or down to choose the desired temperature. Current water tempera- ture is shown below the button for setting/indicating set water temperature. .
Eco Mode
In Eco mode, the water temperature is kept at 55°C. This temperature level enables optimal long-term water heater operation, in terms of energy savings, lower heat losses, hot water availability and heating element durability.
Smart Mode
This icon indicates you are in Smart mode. Information about both phases of the Smart mode will appear below your smart water heater’s name.
The recording phase countdowns necessary time and informs you with this message: ’’Remaining Record Time X days Y hours’’ (i.e. ’’Remaining Record Time 6 days 23 hours) (Fig.20).
NOTE: Do not interrupt recording phase! (by either switch-ing to another mode or by switching off your water heater) (Fig.21)

’Smart Activated’’ will automatically appear once the recording is finished. After this, you may switch to another operating mode. Switching back to Smart mode automati-cally activates your previously recorded data.
NOTE: Switching from Smart mode will affect the heater performance and reduce energy savings.
Reset and new recording are recommended when consumption of hot water is changed (i.e. a number of household members is changed). Select the Settings Menu button and choose ’’Reset Smart’’ to reset and automatically start the new recording (Fig.22). Timer Mode
This icon indicates you are in the Timer mode (Fig.23). In this mode, you can make your personalised hourly, daily and weekly hot water plans.In order to do that, please follow these steps:

• Select the button for setting/indicating set water temperature and the ’’Plan Period’’ dialogue box will appear (Fig.24). You can enter the desired water heating period (’’From’’ and ’’To’’), temperature (’’Set point’’) and weekly repetition (’’Repeating’’).

• Select ’’Start Time’’ to open the clock and enter a heating starting point. Select the desired hour in the first and minutes in the second clock (Fig.25). In the ’’Stop Time’’ section repeat this process to select the time when to stop the heating. In ’’Set point’’ the drop down menu will let you select the desired tempera-ture during the heating period. In ’’ Repeats’’ select the days where your heating plan should be copied and repeated during the week (Fig.24). Select ’’OK’’ to save.

• ’’Plan’’ screen will appear with the overview of your selected ’’Plan Point’’ and hot water usage data
  (Fig.26). In the ’’Plan Name’’ section you can name and rename all your personalised plans (i.e. ’’Weekend Plan’’). The ’’Time’’ section is providing a 24h time line for one day. Below, the days during the week and heating periods during every day are presented by the heating graphics. By pressing the heating graphics, you can see more details and edit your plan for each day (Fig.26). Select the ‘Save’ button in the upper right corner to save the plan.

• ’’Plans’’ screen will appear (Fig.27). The factory default plan and all your future plans will be displayed here.

• Select ’’Create a New Plan’’ to add new plans. Repeat the previously explained steps for every new plan you want to add. The active one will have the toggle button on the right-hand side switched on (Fig.27).

The number of saved personalised plans depends on your mobile device memory capacity. You can switch between them by selecting the toggle buttons on the right-hand side. Note that only one can be active at a time (Fig. 27).

To delete one of the plans, hold the field with the name of the plan you want to delete until it changes colour and select in the upper right corner. (Fig.28).

While you are in Timer mode, the name of your activated plan will be displayed on the main screen, below your water heater’s name (Fig.23).

The selected set temperature in your currently active plan will be displayed in the main screen of the T-Smart application on the button for setting/indicating set water temperature (Fig.23). The presented set water temperature will be 10°C during the periods outside your plans.

NOTE: In the periods where you didn’t set any heating
at all, the water temperature will be kept automatically at 10°C until your selected heating period with the set temperature is activated.

Plans cannot be created, changed and/or deleted when using internet connection and remote control. Please make these changes when connected to your home Wi- Fi network.

Travel Mode
To select the Travel mode, press the operating modes button and select “Travel“ from the drop down menu. The icon will be indicated. The water temperature is set automatically at 10°C (Fig.30) and the heater will turn on when the temperature drops below 10°C. The smart water heater will keep this set temperature until you switch to another operating mode. To change the set temperature manually, switch to Manual mode.

For further assistance, you may prefer our online tutorials. Please scan the QR code below.

Tesla UK Ltd
Unit 3b, First Avenue, Sutton Coldfield B76 1BA
www.tsmart.co.uk
www.teslauk.com
Tel (Sales): +44 (0) 121 686 8711
Tel (Technical): +44 (0) 121 686 8733

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