Raychem SENZ WIFI

Table of Contents

Display Screen

Home Screen:

• 1. Time: Displays the current time.
• 2. Heating Symbol: Indicates when the thermostat is actively heating the floor.
• 3. Actual Temperature: Shows the current measured temperature.
• 4. Setpoint Temperature Button: Allows adjustment of the desired temperature.
• 5. Menu Button: Accesses the central menu.
• 6. Program and Mode Visualization: Displays the current program and operating mode.

On the home screen, only two buttons are directly interactive:

• 4. Setpoint Temperature Button
• 5. Menu Button

Other available buttons on the home screen include:

• Forced Run Time Button (See Turbo Mode)
• Vacation Program Button (See Vacation Mode)
• Vacation Button (See Vacation Mode)

Additional information on the home screen relates to the thermostat's current or future status:

• Time
• Wi-Fi Symbol: Indicates if the Wi-Fi connection is active and established with the wireless router.
• Actual Temperature: Shows the measured temperature, which can be ambient or floor temperature depending on thermostat settings (see Sensor Application).
• Program Display: Shows the weekly program for the previous hour and the next five hours.
• Heating Symbol: Activates when the heating is in progress.

Screen Saver:

• 1. Heating Symbol
• 2. Actual Temperature
• 3. Time
• 4. Lock Symbol
• 5. Operating Mode

Description

The SENZ WIFI thermostat is a smart, user-friendly touchscreen device designed for electric floor heating systems. It is engineered to provide optimal comfort while ensuring minimal energy consumption. The thermostat features both an ambient and a floor sensor, enabling precise control and regulation of floor heating across four distinct modes: ambient temperature detection, floor temperature detection, ambient temperature with floor limitation, and a no-sensor mode.

The thermostat's intuitive interface is powered by advanced technology, including a capacitive touchscreen, a color LCD display, enhanced processing capabilities, and simple swipe gestures for navigation.

Users can conveniently manage the SENZ WIFI thermostat using a dedicated smartphone application (available for iOS and Android via the App Store or Google Play). Additionally, voice control is supported through compatible Amazon Alexa or Google Assistant devices.

Amazon, Alexa, and all associated logos are trademarks of Amazon.com, Inc. or its affiliates. Google and the associated logos are trademarks of Google LLC.

Navigation Principle

The SENZ WIFI thermostat features a touchscreen interface. Simply touching the screen activates its buttons. A simple swipe of the finger allows users to navigate through menus or adjust values using the scroll wheels.

The thermostat is operated via a central menu, from which the user can select operating modes and various settings. Press the menu button to activate the central menu.

Central Menu:

The operating mode buttons allow the user to activate their chosen modes (refer to Operating Modes). When accessing the Settings menu, the user can browse and update settings. The menu structure is illustrated below.

Operating Modes

The SENZ WIFI thermostat regulates floor heating to provide a comfortable environment by activating the electric heating system embedded in the floor. This process heats the floor and distributes pleasant warmth throughout the room while maintaining a setpoint temperature. To achieve this, the SENZ WIFI thermostat must be configured to one of the seven available operating modes.

Each operating mode has a unique home screen, making it easy to identify the active mode.

Even when in Off mode, the SENZ WIFI thermostat remains accessible via the smartphone application or by voice command through a compatible Amazon Alexa or Google Assistant speaker.

Settings Menu

When the user selects the Settings menu from the central menu, a list of parameters is presented:

• Modify Program: Allows creation or modification of weekly schedules for Programs 1, 2, or 3.
• Energy: Allows visualization of the energy consumption of the floor heating system.
• Settings: Allows modification of thermostat settings.
• Wi-Fi: Allows configuration of a Wi-Fi connection between the SENZ WIFI and the application used to control the thermostat.

Getting Started

Once the SENZ WIFI thermostat is installed according to the user manual (EU0646), it can be started. To do so, use the main bipolar switch.

The SENZ WIFI thermostat will begin by displaying an installation assistant. This assistant will guide you through configuring the following elements:

• Language Selection: The selection list includes 15 languages.
• Date Setting
• Time Setting

Central Menu

Pressing the menu button accesses the central menu, displaying operating modes, settings, and a back button.

The operating mode buttons allow activation of chosen modes. In the Settings menu, users can browse and update settings.

Menu Structure:

• Edit Program
• Energy
• Settings
• Wi-Fi
• Date & Time
• Display
• Pincode
• Currency
• Price per kWh
• Load
• Language
• Lock
• Advanced
• Reset
• Information
• First Warming
• Delay Start-up
• Sensor Application
• Adaptive Function
• Open Window
• Sensor Type
• Frost Protection
• Floor Sens. Calibr.
• Room Sens. Calibr.
• Temperature Scale
• EN50559

Turbo Mode

Turbo mode temporarily replaces the currently active operating mode for a few hours. When Turbo mode is deactivated, the SENZ WIFI thermostat reverts to the previously active operating mode.

Users can select the target temperature and duration for the forced run. If Turbo mode is activated a second time, the thermostat will remember the previously selected temperature and duration.

On the Turbo mode home screen, a countdown for the forced run is continuously displayed. The duration and temperature of the forced run are indicated on the program bar.

The remaining forced run time is represented by a button that the user can press at any time to adjust the remaining duration.

Vacation Mode

Vacation mode temporarily replaces the active operating mode for several days. When Vacation mode is deactivated, the SENZ WIFI thermostat reverts to the previously active operating mode.

It is possible to program Vacation mode in advance. In this case, a vacation program button will appear on the screen.

When the user presses the vacation program button, they can adjust the program. Once the vacation start date arrives, the home screen will appear as follows:

In this view, the vacation period is shown between 03/06/2015 and 25/06/2015, and the SENZ WIFI thermostat will restore Program 1 after this period.

When the user presses the Vacation button, they can adjust the schedule. Upon first accessing Vacation mode, the user specifies the start and end dates, as well as the desired maintenance temperature for this period.

When the user activates Vacation mode again, the thermostat will have memorized the chosen vacation temperature. Any modification made via voice command using a Google Home or Amazon Alexa connected speaker will cancel Vacation mode.

Program Modes 1, 2, and 3

In the Settings menu, select Modify Program, then choose the program to adjust (Program 1, 2, or 3). Program modes refer to weekly programming. These are the most energy-efficient modes, designed to reach different temperatures when occupants are expected to be in the rooms they regulate.

Programs 1 and 2 are preset, but users can customize them according to their needs. Program 3 is not configured at the factory.

Pre-settings for Program 1

Pre-settings for Program 2

It is recommended to associate a weekly program with the adaptive heating function to minimize energy consumption while maintaining the desired comfort level. The adaptive function is activated in the factory settings. Users can disable it in the advanced settings (see Adaptive Function).

In program modes, when the user adjusts the temperature using the setpoint temperature button, the temperature is temporarily adapted until the next scheduled temperature change (according to the programming schedule). This modification is indicated in the program temperature bar.

If the setpoint temperature is changed via voice command (e.g., "Alexa, increase the living room temperature by 2 °C"), the temperature will be adjusted for a period of 2 hours. The thermostat will then revert to the active program after these 2 hours have elapsed.

Updating Program 1, 2, or 3 Schedule

The Weekly Program settings allow programming or modifying a weekly schedule used in Week mode. In the Settings menu, select Modify Program, then choose the program to adjust (Program 1, 2, or 3). A screen showing a weekly schedule overview will appear.

Use the label button to rename the program (name changes can also be made via the mobile app).

Press the pen button to program the weekly schedule. Weekly schedule programming is divided into two steps:

• Step 1: Select a day or a range of days to program.
• Step 2: Program up to 7 periods for these days. A period consists of a start time, an end time, and a temperature to maintain during that period.

Constant Mode

In constant mode, the SENZ WIFI thermostat is set for a single temperature. This is a very simple mode to use. However, more efficient temperature regulation modes exist for energy savings (see Program Modes 1, 2, and 3).

When the user changes the setpoint temperature in constant mode, unlike program mode, the temperature remains set to the new value until the user changes the setpoint temperature again.

In constant mode, if the temperature is modified by voice command (e.g., "Hey Google, set the bathroom to 22 degrees"), the new setpoint temperature setting will be permanent.

Advanced Settings

Initial Heating: The Initial Heating function facilitates the drying of freshly laid screeds. It is designed to activate floor heating progressively over 21 days. It should only be used if it complies with the screed manufacturer's specifications.

During screed drying, the thermostat is blocked for 21 days (unless the user chooses to deactivate this function).

Defer Start-up: After a power outage, it may be advisable not to start all electrical appliances and equipment simultaneously. The Defer Start-up function allows each thermostat to start with a delay of 1 to 15 minutes after power is restored.

Sensor Application

With the Sensor Application function, the user can select the sensor that will regulate the floor heating.

The SENZ WIFI thermostat can operate in the following temperature detection modes:

• Floor: The SENZ WIFI thermostat regulates heating based on the floor temperature.
• Ambient: The SENZ WIFI thermostat regulates heating based on the ambient temperature.
• Ambient/Floor Limiter: The SENZ WIFI thermostat regulates heating based on ambient temperature but cuts off heating once the floor reaches the temperature defined by the limiter (see Temperature Scale).
• No Sensor: The SENZ WIFI thermostat functions as a regulator with cycles, activating the relay for a percentage of each cycle.

Factory Setting: Floor temperature detection mode if an external floor sensor was connected to the SENZ WIFI thermostat before its initial power-on.

Note: If a floor sensor is physically connected to the SENZ WIFI thermostat, only the Floor and Ambient/Floor Limiter detection modes are available. If no floor sensor is connected, the thermostat will display a warning message. The installer must then select one of the available sensor applications (Ambient or No Sensor).

If the Sensor Application function is set to No Sensor, it will not be possible to control the SENZ WIFI thermostat using a smart speaker.

Adaptive Function

The SENZ WIFI thermostat is an intelligent thermostat that adapts to the floor structure and the time of year. It learns how and when to start heating to reach the desired ambient or floor temperature at the desired time. When the adaptive function is inactive, the SENZ WIFI thermostat initiates heating upon a new event. When the adaptive function is active, it anticipates the heating start to reach the desired temperature on time. As the SENZ WIFI thermostat continuously learns, it adapts to external conditions to optimize comfort while remaining highly energy-efficient.

Factory Setting: The function is active.

Note: To ensure user comfort, the SENZ WIFI thermostat may begin preheating the room up to 4 hours in advance. During the first few weeks, it might seem to start too early, but the thermostat is learning the floor structure and external conditions, allowing it to better align with the desired heating schedule. In other words, your thermostat will become more energy-efficient as it memorizes your floor's parameters.

Window Detection: The SENZ WIFI thermostat is equipped with an open window detection function. This feature ensures that the thermostat does not start heating when a window is open for room ventilation. If the thermostat detects a sudden temperature drop, it cuts off heating for 30 minutes and then restarts it after this brief interruption.

Factory Setting: The function is active.

Sensor Type: The SENZ WIFI thermostat comes with a 12 kΩ sensor but is compatible with many other models. If you have installed a different sensor than the one supplied with the thermostat, use the Sensor Type function to select the sensor that will work with the SENZ WIFI thermostat.

To change the sensor, select the desired type, swipe down on the screen, and confirm your choice.

If you replace the SENZ WIFI thermostat's sensor with the default Raychem replacement sensor (1244-002952), select the appropriate sensor in the Sensor Type menu: Sensor - 10 kΩ.

The SENZ WIFI thermostat is compatible with sensors having the following resistance values at 25 °C: 2 kΩ, 10 kΩ, 12 kΩ (factory sensor), 15 kΩ, 33 kΩ, and 100 kΩ.

Frost Protection

When the SENZ WIFI thermostat is in Off mode, it can maintain the floor frost-free by activating floor heating to prevent the temperature from dropping below a certain threshold. This threshold is called the frost protection temperature. The frost protection function can be activated and deactivated, and the associated temperature can be adjusted from this menu.

Factory Setting: Function deactivated.

Calibration

Floor Sensor Calibration: You can calibrate the floor sensor to the actual floor temperature using the calibration menu. Depending on the floor structure, the floor temperature may differ from the temperature measured by the floor sensor.

Factory Setting: By default, a 4 °C offset is programmed in the floor temperature detection mode. This provides a value closer to the actual temperature of the floor covering (especially tiles). For example, if the floor sensor measures 23 °C, it will display 19 °C as the floor temperature. For most floor coverings and structures, this value will be closer to the actual temperature than the direct measurement from the floor sensor.

Ambient Sensor Calibration: You can calibrate the ambient sensor to the actual room temperature using the calibration menu. The SENZ WIFI thermostat performs automatic ambient sensor calibration after each factory reset (or after initial installation).

Manual calibration of the ambient sensor is only recommended after automatic calibration and in rare cases where automatic calibration does not seem entirely accurate. Please do not calibrate the ambient sensor within the first 10 days of system operation.

Temperature Scale

The temperature scale parameters allow limiting the minimum and maximum adjustable temperatures in the thermostat, as well as those of the floor temperature limiter.

The minimum and maximum temperature limits define the behavior of the floor limiter. If the temperature is below the minimum limit, heating remains on; if it is above the maximum limit, heating remains off.

The minimum and maximum temperature scale allows limiting the desired temperature setting within the Min./Max. range. When the user wishes to change the temperature, they can only select a value within the chosen range.

Wi-Fi Configuration

• Download the SENZ-WIFI application. The application is available on Google Play and the App Store.
• Create an account using the application. To create an account, simply press the "Create Account" button in the application and follow the instructions.
• Configure Wi-Fi on each thermostat. On the thermostat, navigate to the Settings/WiFi menu and follow the WiFi assistant. You will be prompted to:
• Choose a network: A list of available networks will be displayed on the thermostat screen.
• Enter a network key for the selected network: This is the local network password (also called WiFi password).
• Choose a name for the thermostat: It is possible to assign a name to the thermostat. However, it is recommended to do this later via the application, as it will be faster and simpler from a smartphone. If you do not wish to name the thermostat at this stage, simply press the Next icon.
• Indicate an email address: This email address will be the link between the application and the thermostat. It is therefore important to use the same email address as the one used to create an account in the application.

Once the Wi-Fi network configuration is complete on the thermostat, you will receive an email allowing you to link the thermostat to your account. Click the link in the email and follow the instructions to start using the thermostat from the application.

Voice Control Configuration

Configuration of Voice Control via Google Assistant:

In the GOOGLE HOME mobile application, you can add SENZ WIFI thermostats as follows:

• On the home screen, press the plus sign (+).
• Choose "Set up a device".
• Choose "Works with Google".
• Search for "SENZ WIFI Thermostat".
• Follow the on-screen instructions*.

* During configuration, you will need to use your SENZ WIFI account credentials to link the SENZ WIFI thermostat to the Google Home mobile application.

Configuration of Voice Control via Amazon Alexa:

In the Amazon Alexa application, you can add SENZ WIFI thermostats as follows:

• On the home screen, select "More".
• Choose "Skills & Games".
• Search for "SENZ WIFI Thermostat".
• Follow the on-screen instructions*.

* During configuration, you will need to use your SENZ WIFI account credentials to link the SENZ WIFI thermostat to the Amazon Alexa mobile application.

Troubleshooting

If an anomaly or error occurs, the thermostat will display one of the following error messages:

• E0: Internal Fault. Thermostat malfunction. The thermostat must be replaced.
• E1: Internal Sensor Fault. The thermostat must be replaced.
• E2: Disconnection, fault, or short circuit of the external wired floor sensor. Contact your installer to reconnect or replace it.
• E5: Internal Overheating. Contact your installer to inspect the installation.

For other issues, consult the floor heating website: chemelex.com

Technical Specifications

Approvals and Declarations

« Protection against electric shocks must be guaranteed by appropriate installation. Class II conditions are met subject to appropriate installation. »

This thermostat fully complies with the ecodesign directive and integrates the following functions:

✅ Alexa

✅ Google Assistant

Amazon, Alexa, and all associated logos are trademarks of Amazon.com, Inc. or its affiliates. Google and the associated logos are trademarks of Google LLC.