gosund STR1 Bluetooth Thermostat Radiator Valve User Manual

gosund STR1 Bluetooth Thermostat Radiator Valve

Product Information

Specifications:

• Product Name: Gosund STR1 Bluetooth Thermostat Radiator Valve
• User Interface: Bluetooth signal Temperature, Manual mode, Automatic mode
• Features: Pairing, Comfortable temperature, ECO temperature, Holiday mode, Adjust temperature, Switch between automatic, manual, and holiday mode

Product Description:
The Gosund STR1 Bluetooth Thermostat Radiator Valve is a smart device designed to regulate room temperature efficiently. It offers features like automatic mode for scheduled heating, manual mode for direct temperature control, and holiday mode for energy-saving when away.

Installation Instructions:

1. Align the radiator thermostat with the triangle mark for correct positioning.
2. Install the thermostat on a compatible valve following the manufacturer’s instructions.
3. For Danfoss RA Valve installation, align Part A with Part B and select the appropriate ejector rod based on the valve diameter.
4. For Giacomini Valve installation, fit the adapter correctly onto the valve and insert the suitable ejector rod.
5. For Caleffi Valve setup, maximize valve flow before installation and position the adapter accurately.

Product Usage Instructions

Automatic Mode:
Engage automatic mode for the thermostat to manage room temperature based on a predefined schedule. Manual adjustments are temporary.

Manual Mode:
In manual mode, control the temperature directly using the knob. Settings remain until changed.

Pairing and Software Installation:

1. Download the Gosund/Smart Life App from App Store or Google Play.
2. Open the app, sign up, and log in.
3. Pair the thermostat with the radiator valve by holding down the pairing button for 5 seconds until the Bluetooth icon flashes.

FAQ:

• Q: What should I do if the device displays an error message F2?
  A: If you encounter an F2 error message or continuous heating, try using a larger ejector rod (2.6 mm) after attempting with a 1.6 mm rod.

• Q: How can I adjust the orientation of the digital display?
  A: Press the reset button to adjust the display orientation to your preferred viewing angle.

Dear customer,
Thank you for purchasing our product. Please read the following instructions carefully before first use and keep this user manual for future reference. Pay particular attention to the safety instructions. If you have any questions or comments about the device, please contact the customer line.
www.alza.co.uk/kontakt
✆ +44 (0)203 514 4411
Importer Alza.cz a.s., Jankovcova 1522/53, Holešovice, 170 00 Praha 7, www.alza.cz

Product Description

A thermostatic radiator valve (TRV) operates autonomously to regulate a hot water heating system’s radiator, thereby modulating the room’s heat by adjusting the hot water flow within the radiator. This device empowers users to fine-tune the ambient temperature from a range of 5 – 30 °C, which can result in energy savings exceeding 15%.
Designed for universal compatibility, this radiator thermostat seamlessly integrates with standard radiator valves. Its installation is straightforward, negating the need for water drainage or intricate meddling with the existing heating setup. It features a rapid heating function that amplifies the warmth by temporarily increasing the flow through the valve for a duration of 5 minutes. This quick action ensures a cozy room environment almost immediately, thanks to the expedited thermal emission.

User Interface

Initial Setup

1. Preliminary Steps
   • Two AA batteries are needed to operate the TRV. Ensure you have them ready.
   • The temperature is displayed in degrees Celsius.
2. Battery Installation
   • Place two new LR6 (AA) batteries into the battery compartment, paying attention to the correct orientation.
3. Battery Life and Replacement
   • The expected lifespan of new alkaline batteries is around 1.5 years. When the battery symbol ( ) appears on the display, it’s time for a replacement. After taking out the used batteries, wait about 1 minute before putting in new ones. Note that rechargeable batteries are not compatible with this device.
4. Initiating Adaptive Function
   • When ‘InS’ and a rotating „ “ appear on the display, it indicates that the motor is retracting.
   • Once ‘AdA’ is visible on the display, the radiator thermostat is ready to be attached to the valve. Press the pair button to activate the adaptive function.
   • The ‘AdA’ symbol with a rotating „ “ signifies that the thermostat is adjusting to the valve.
5. Troubleshooting
   •  If the adaptive function starts before installation, press the pair button to reset the motor to the ‘InS’ position.
   • Should an error code (F1, F2, F3) appear, pressing the Pair/Boost button will also reset the motor to the ‘InS’ position.

Installation of the Radiator Thermostat

Installing the radiator thermostat is straightforward and does not require you to drain the heating system or turn off the heat. No special tools are needed for this process.
The ring nut of the thermostat is designed for universal application, fitting all standard valves with an M30 × 1.5 thread from a wide range of well-known manufacturers, including but not limited to:

• Danfoss
• Heimeier
• MNG
• Junkers
• Landis&Gyr (Duodyr)
• Honeywell-Braukmann
• Oventrop
• Schlösser
• Comap
• Valf Sanayii
• Meritk Maxitrol
• Watts
• Wingenroth (Wiroflex)
• R.B.M
• Tiemme
• Jaga
• Siemens
• Idmar54

The provided adapters allow for installation on specific Danfoss valve types such as Danfoss RA, Danfoss RAV, and Danfoss RAVL.

Removing the Old Thermostat
You can unscrew your current thermostat without concern for water leaks.

Installation for M30 × 1.5mm Thread
Screw the STR1 smart radiator thermostat directly onto the radiator with an M30 × 1.5 connection. Adjust the angle to ensure the LED faces the viewer correctly.

• Set the thermostat dial to the maximum setting before installation. (6 or 8)
• Confirm the indicator © is active.
• Proceed with mounting the device.

Installation for Danfoss RAVL Valves

• Ensure that the indicator © is active before proceeding.
• The valve body features extended notches along its circumference. These notches are designed to align with the adapter’s pins, guaranteeing a secure fit when the adapter is fully snapped into place.
• Attach the adapter to the valve, ensuring that Part A on the adapter lines up with Part B on the valve.
• Insert the circular tube into the thermostat unit.
• Complete the installation by mounting the thermostat onto the valve.

Fitting the Device to a Danfoss RAV Valve

• Begin by confirming that the indicator © is operational.
• Notice the elongated notches on the circumference of the valve body. These are designed to match up with the corresponding pins inside the adapter, ensuring a secure connection when the adapter is fully snapped into place.
• Fit the adapter onto the valve, making sure to align Part A of the adapter with Part B of the valve.
• Secure the connection by tightening the union nut.
• Finally, attach the thermostat device to the assembled valve and adapter.

Installing the Thermostat on a Danfoss RA Valve

• Rotate the thermostat dial to its highest setting, typically marked as “N” or similar, to ensure proper alignment.
• Verify that the thermostat’s active indicator © is on.
• The valve body is equipped with elongated notches along its perimeter to facilitate accurate alignment of the adapter. Make sure the adapter snaps on completely, with the interior pins matching the notches on the valve.
• Position the adapter so that Part A on the adapter lines up with Part B on the valve.
• Tighten the union nut to secure the adapter in place.
• Insert the cylindrical tube into the thermostat.
• Attach the thermostat to the valve assembly to complete the installation.

M28 × 1.5mm Valve Installation

• Determine the correct length of the ejector rod needed for your valve from the available sizes of 15 mm, 17 mm, 19 mm, or 24 mm. Choose based on the specific brand or valve size requirements.
• Insert the chosen ejector rod into the designated hole in the valve.
• Attach the adapter to the M28 × 1.5 valve.
• Choose the ejector rod length based on the valve brand and size:
  • Herz, MMA, Remag: 17 mm
  • TA, Comap, Markaryds: 19 mm
  • SAM, Slovarm: 24 mm

Select the appropriate ejector rod based on the diameter (D) of the valve:

• For a diameter of 11.5 – 13 mm, use a 15 mm ejector rod.
• For a diameter of 9.0 -1 1.5 mm, use a 17 mm ejector rod.
• For a diameter of 7.0 – 9.0 mm, use a 19 mm ejector rod.
• For a diameter of 1.0 – 3.5 mm, use a 24 mm ejector rod.

Giacomini Valve Installation
Fit the adapter onto the Giacomini valve correctly, then insert the appropriate ejector rod.

Caleffi Valve Setup
Maximize the valve flow before installation and position the adapter correctly .

Operating the Ejector Rod
Occasionally, due to the metal valve’s dimensional and assembly tolerances, you may encounter one of two issues:

1. The device displays an error message, F2, indicating a malfunction.
2. The metal valve does not seal completely, causing continuous heating.

To resolve these issues, begin by using a 1.6 mm ejector rod. If the problem persists, switch to a larger 2.6 mm ejector rod for a potential fix.

Interface Display
The LED display will present information as shown below when the radiator thermostat is set up and ready for configuration. If this is not the case, remove the batteries, reinsert them, and repeat the instructions from step 4.

To adjust the orientation of the digital display to your preferred viewing angle, simply press the reset button.

Software Installation

App Download
To begin, download the Gosund/Smart Life App onto your mobile device from the App Store or Google Play.

Once downloaded, open the Gosund App and sign up using your phone number or email address to register and log in.

Adding the Thermostat to Your Device

• Pairing with the Radiator Valve
  Hold down the pairing button on the thermostat for 5 seconds. Wait for the Bluetooth icon ( ) to flash, indicating the device is in pairing mode.

• Connection Options:

  • Option A:
  • On your device, select any Bluetooth device listed and follow the on-screen setup wizard to complete the installation and configuration. If your phone’s Bluetooth is off, the app will request permission to enable it.
  • Option B:
  • If you have already integrated the Gosund Bluetooth Sigmesh gateway in the Tuya smart app, you can connect the Bluetooth TRV to the gateway for remote operation. Here’s how to set it up:
  • Add the TRV as a sub-device through the gateway’s interface. There is no need to keep Bluetooth enabled on your phone after setup, but ensure the thermostat remains within 2 meters of the gateway for optimal connectivity.

Product Features

Automatic Mode
Engage automatic mode for the thermostat to manage the room temperature according to a predefined heating schedule. Any manual adjustments made will be temporary until the next programmed change, after which the preset schedule will resume. To enable automatic mode, follow these steps:

• Press the pair button to select the automatic mode icon ( ).
• The preset temperature settings are between 17°C and 21°C, adjustable in 0.5°C increments within a range of 5 – 30°C.
• For app control, tap the auto mode icon in the app’s control panel.

Manual Mode
In manual mode, temperature control is based on your direct input using the control knob, and these settings remain until you decide to change them again. To use manual mode:

• Press the pair button to select the manual mode icon ( ).
• The default temperature setting is 20°C, with the same adjustable range and increments as auto mode.
• App control: Select the manual mode icon in the app.

Holiday Mode
Use holiday mode to reduce heating when you’re away. This mode starts automatically at the pre-set time and maintains a lower temperature to save energy. To check or change holiday mode settings:

• Press the pair button; the holiday mode icon ( ) will flash for confirmation.
• To exit holiday mode prematurely, press the pair button again.
• App control: Tap the mode icon in the app to start or end holiday mode.

Open Window Detection
The thermostat will automatically cease heating if a rapid temperature decline of 5°C within 5 minutes is detected, which often occurs when a window or door is left open. An open window symbol ( ) will appear on the display to indicate this state. To override this function and resume normal operation, press the pair button. For app control, select the open window icon within the app to deactivate the open window detection feature.
Note: Open window detection is available only in automatic and manual modes.

Offset Temperature
Temperature readings on the radiator thermostat may not always match the room’s ambient temperature due to varying conditions across different areas. To account for this, you can set a temperature offset within a ±5°C range. For example, if the thermostat is set to 20°C but the actual room temperature is 18°C, you should set an offset of -2°C to align with the true temperature. The default offset is 0 degrees. To modify the temperature offset, follow these steps:
In the app settings, tap the offset icon (±) to adjust the temperature offset as needed.

Eco and Comfort Temperature Settings
The thermostat features icons for Eco and Comfort modes, making it easy to switch between energy-saving and optimal warmth settings. The factory presets are 21°C for Comfort mode and 17°C for Eco mode. To select the desired temperature setting in the app, tap the Comfort ( ) or Eco ( ) icons in the control panel. You can adjust the temperature anytime in auto mode, and the new setting will stay active until the next scheduled program change.

Child Safety Lock
To prevent accidental changes to the settings, such as those that might occur through unintentional touches, the thermostat includes a child lock feature. To activate or deactivate the child lock, use the app to click the child lock icon in the settings screen. The thermostat will display “LOC” when the lock is active.

Anti-Freeze Protection
Activate the anti-freeze feature to maintain a minimal room temperature of 8°C, ideal for periods when you are away during the winter or for extended times. The display will show “AF” to indicate this mode is active. To deactivate this mode, simply press the pair button. To control this feature via the app, tap the anti-freeze icon ( ) in the app’s settings screen. It’s important to note that while the anti-freeze feature is on, other thermostat functions will be temporarily disabled until you turn this feature off.

Energy-Saving Heating Stop Mode
Extend the thermostat’s battery life by utilizing the heating stop function, which fully closes the valve. The display will read “HS” when in this mode. To exit, press the pair button. To control it via the app, tap the Heating stop icon ( ) in the settings screen. Be aware that while this mode is on, access to other features will be disabled until you turn it off.

Limescale Prevention
The device will automatically engage in a cycle each week to operate the valve, which helps to prevent limescale buildup and ensure the longevity of the system.

Quick Heat Boost
For those times when you arrive home early and need immediate warmth, the boost mode rapidly heats up the room by fully opening the valve for 5 minutes. The countdown for this function is displayed in seconds, counting down from ‘299’ to ‘000’. Once the time is up, the thermostat will revert to its previous mode and temperature setting. To stop the boost function before the time ends, press the pair button. To activate or cancel the boost via the app, select the Boost icon ( ) in the control panel.

Settings Overview

Access the app’s settings panel by tapping the settings gear icon( ).

Date Synchronization
Upon successful pairing with your phone, the thermostat’s time will automatically synchronize with your phone’s current time.

Weekly Schedule Programming
Under this menu, tailor your heating schedule to fit your lifestyle by setting up to ten temperature changes per day. By default, five stages are set. Choose specific days, weekdays, weekends, or the entire week to apply your heating preferences. Use the
week programming icon ( ) in the app to adjust the end time and temperature for each stage.

• • Time adjustment increments: 10 minutes
  • Temperature adjustment range: 5 – 30°C, in 0.5°C steps

Customizing Open Window Detection
Adjust open window detection settings by clicking the ( ) icon in the app. You can set the duration and temperature at which this feature activates.

• Temperature adjustment range: 5 – 30°C, in 0.5°C steps
• Time adjustment range: 0 – 120 minutes, defaulting to 60 minutes

Comfortable Temperature
To select a comfortable temperature setting:

• Tap the comfort temperature icon ( ) in the app.
• Choose your ideal temperature within a range of 5 – 30°C, adjusting in 0.5°C increments.

Eco Temperature
To conserve energy while maintaining comfort:

• Click the Eco temperature icon ( ) in the settings.
• Set your preferred temperature within the 5 – 30°C range, with 0.5°C adjustments.

Temperature Offset
If there’s a discrepancy between the actual and displayed temperatures:

• Select the offset temperature icon (±) in the app.
• Choose an offset within a range of -5 to +5°C, adjustable by 0.1°C.

Holiday Mode Configuration
For reduced heating when away:

• Tap the holiday mode icon ( ) in the app.
• Set the end date and desired temperature for the duration of your absence, adjustable within a 5 – 30°C range and in 0.5°C increments.

Low Battery Notification
If the battery level falls below 12%, a low battery symbol ( ) will appear on the display, indicating that the battery needs to be replaced promptly. If the display shows only the low battery symbol ( ), the device will not be operational.

Performing a Reset
To reset the device, hold down the reset button for 5 seconds. “FAC” will appear on the display, indicating that the reset process has begun. Please note that after a reset, previously stored data may be lost and the device might require reconfiguration.

Troubleshooting and Maintenance

Specifications

• Batteries 2× 1.5 V LR6/ Mignon /AA
• Temperature Range 5 – 30°C
• Display LED
• Maximum Radiated Power 10 dBm
• Dimensions(W x H x D) 56.5 × 56.5 × 100 mm
• Weight 190 g (including batteries) / 140 g (excluding batteries)
• Working Temperature -10°C to -40°C
• Working Environment Indoor
• Safety Certification CE / ROHS
• Frequency 2.4 GHz
• Degree of Protection IP20
• Battery Life 1.5 years

Packaging

• 1× Bluetooth Radiator Thermostat
• 2× 1.5 V Mignon / LR6 / AA Batteries (Optional)
• 1× Adapter for Danfoss (RA, RAV and RAVL), 28 × 1.5 mm, Caleffi, Giacomini, Ejector Rod
• 1× Screw
• 1× User’s Manual

Warranty Conditions

A new product purchased in the Alza.cz sales network is guaranteed for 2 years. If you need repair or other services during the warranty period, contact the product seller directly, you must provide the original proof of purchase with the date of purchase.
The following are considered to be a conflict with the warranty conditions, for which the claimed claim may not be recognized:

• Using the product for any purpose other than that for which the product is intended or failing to follow the instructions for maintenance, operation, and service of the product.
  Damage to the product by a natural disaster, the intervention of an unauthorized person, or mechanically through the fault of the buyer (e.g., during transport, cleaning by inappropriate means, etc.).

• Natural wear and aging of consumables or components during use (such as batteries, etc.).

• Exposure to adverse external influences, such as sunlight and other radiation or electromagnetic fields, fluid intrusion, object intrusion, mains overvoltage, electrostatic discharge voltage (including lightning), faulty supply or input voltage and inappropriate polarity of this voltage, chemical processes such as used power supplies, etc.

• If anyone has made modifications, modifications, alterations to the design or adaptation to change or extend the functions of the product compared to the purchased design or use of non-original components.

EU Declaration of Conformity

This equipment is in compliance with the essential requirements and other relevant provisions of EU directives.

WEEE
This product must not be disposed of as normal household waste in accordance with the EU Directive on Waste Electrical and Electronic Equipment (WEEE – 2012/19 / EU). Instead, it shall be returned to the place of purchase or handed over to a public collection point for the recyclable waste. By ensuring this product is disposed of correctly, you will help prevent potential negative consequences for the environment and human health, which could otherwise be caused by inappropriate waste handling of this product. Contact your local authority or the nearest collection point for further details. Improper disposal of this type of waste may result in fines in accordance with national regulations.

References

• Alza.cz – rychlý a pohodlný nákup odkudkoliv | Alza.cz
• Alza | Alza.co.uk
• Alza.cz – rychlý a pohodlný nákup odkudkoliv | Alza.cz
• Alza.cz – rychlý a pohodlný nákup odkudkoliv | Alza.cz
• Alza.cz
• alza.de
• alza.hu
• alza.sk

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