Related Manuals for ThermoSphere BT21
Summary of Contents for ThermoSphere BT21
- Page 1 INSTRUCTION GUIDE BT21 BT21 Bluetooth Programmable Thermostat Installation and User Guide Scan to watch the quick setup guide Live well...
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Page 2: Table Of Contents
Contents Sensor compatibility ............. 3 What's in the box? ............4 Before you start ............5 Installing your thermostat ..........6 Wiring diagram .............. 9 What‘s on the thermostat? ......... 13 User interface .............. 14 Setting up your thermostat ........15 Manual mode .............. -
Page 3: Sensor Compatibility
Sensor compatibility This thermostat is compatible with the most popular floor sensor probes. There is an NTC10k sensor included in the box. You can change the floor sensor type in the BT21 app. • • (Default) • 12.5k • •... -
Page 4: What's In The Box
What’s in the box? Check you've got everything: • BT21 Bluetooth Programmable Thermostat • Floor sensor probe (3m) • Fixing screws You will also need: • Floor sensor conduit (2m) • Electrical screwdriver • Electrical back box... -
Page 5: Before You Start
Before you start Your thermostat should be: • Installed 1.2 - 1.5m from the floor • On an internal wall • Outside any wet zones (IP21) • Installed on an RCD protected circuit • Away from drafts or other heat influences •... -
Page 6: Installing Your Thermostat
Installing your thermostat Switch off mains power You will be installing your thermostat as part of a mains electrical circuit. To ensure your safety and CAUTION to protect the thermostat, isolate the circuit from Mains Voltage mains power. Cables Fuse Box Fused Switch... - Page 7 Installing your thermostat Maximum distances Your thermostat can be installed up to 50m away from the underfloor heating system it is controlling, provided that the floor sensor is used to control the temperature. Underfloor heating cold tails and floor sensor probes can be extended up to 50m.
- Page 8 Installing your thermostat Unlock the fascia plate NO TOOLS NEEDED! Push the dial in and twist anti-clockwise to unlock the fascia plates. Remove the inner fascia first and then the outer plate Scan to see how its done...
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Page 9: Wiring Diagram
Installing your thermostat Wiring diagram Connect the underfloor heating cold tail, power supply and floor temperature sensor. Don‘t leave any copper exposed. The floor temperature sensor is not polarity sensitive. Scan to watch the wiring video... - Page 10 Installing your thermostat Fix mounting plate in position Push the power block into the back box and use a screwdriver to securely fix the mounting plate in position.
- Page 11 Installing your thermostat Replace and lock the fascia plate NO TOOLS NEEDED! Grip the dial, push in and turn it clockwise into the LOCK position. Locate the outer fascia first and then “click” the inner fascia into position.
- Page 12 Installing your thermostat Switching on your system It is important that all adhesives and grouting is dry and fully cured before you switch on your underfloor Wait for heating. 7 - 10 Days before you switch on Most adhesives take between 7 to 10 days to cure. Follow manufacturer guidelines.
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Page 13: What's On The Thermostat
What‘s on the thermostat? The BT21 is a bit different to other thermostats. It‘s the fastest and easiest thermostat to program and once you‘ve set it up you shouldn‘t need to fiddle with it too much! Set button • Enter the menu •... -
Page 14: User Interface
User interface E CO Comfort mode Eco mode set point set point... -
Page 15: Setting Up Your Thermostat
Adjust the Eco set point temperature • Turn the thermostat off • View the active sensor mode • Access support documents via a QR code The unique thing about the BT21 is that, apart from adjusting the temperature, you do everything else on the app. - Page 16 The thermostat dial menu To access the menu, turn the dial to activate the display and then press the “SET” button at the top of the screen. You can then use the dial to cycle through the menu. Press “SET” to select one of the modes, power off or to exit.
- Page 17 This screen shows you which sensor mode is active. room dual You can change sensor modes in the BT21 app. melt Floor - Floor temperature, Room - Air temperature, Dual - Air temperature with floor limit, PWM - Sensor is disabled,...
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Page 18: Manual Mode
We recommend using the BT21 app to set up a simple heating schedule that will save you money on your heating bills and help the environment by using less energy. The BT21 is the fastest and easiest thermostat to set up. So give it a go! -
Page 19: How To Set Up A Heating Schedule With The App
This is going to be so much easier than you‘re expecting! First you need to use the dial on the thermostat to set your Comfort and Eco temperatures. With the BT21 you only have to set the temperatures once. 1. Turn the dial to activate the display. - Page 20 4. Turn the dial clockwise to select Eco mode. 5. Tap to confirm. 6. Turn the dial to set the Eco temperature. Set this to 10°C if you‘d like your heating to be off. E CO 7. Tap to confirm.
- Page 21 8. Open the BT21 app and tap the red arrow to connect to your new thermostat. You‘ll see the ThermoSphere logo on the thermostat when you‘re connected.
- Page 22 9. Tap the day you‘d like to edit and tap each hour that you‘d like to set to the Eco mode. The green leaf icon means the thermostat will maintain the Eco temperature for that hour. The thermostat will maintain the Comfort temperature for the rest of the day.
- Page 23 10. When you‘re done hit “Save heating program” and press “OK”. 11. Turn the dial on your thermostat to save the changes you just made. Don‘t skip this step! If you don‘t turn the dial to confirm your settings they won‘t be saved to your thermostat.
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Page 24: Change Your Settings On The App
Change your settings on the app To access the settings for your thermostat tap on the three lines on the top right corner of the app screen. - Page 25 Save preset: Save your heating schedule and all settings as a preset that you can copy to all of your other thermostats. Factory reset: Erase the thermostat and go back to factory settings. Restart stat: This restarts the thermostat software. Save settings: Save the changes you just made in the app.
- Page 26 Adjust the lower Eco temperature used in the heating program. Optional external relay Eco temperature: It is possible to wire an external pilot signal relay to the BT21. When a signal input is received the thermostat will change to this temperature.
- Page 27 Sensor mode: Select from 5 different sensor modes. If you connect a floor sensor the thermostat will automatically select Floor. Floor - Floor temperature Air - Ambient air temperature Dual - Air temperature with floor limit PWM - Temperature sensing is disabled Snow melting - For outdoor heating applications only.
- Page 28 Wireless sensor: You can connect a compatible wireless temperature and humidity sensor (required for Snow melting). Scan wireless sensor QR code: Use this to scan the QR code on the wireless sensor and connect it to your thermostat. Valve protection: Turn this on if you‘re controlling water heating valves.
- Page 29 Specific settings for Snow Melting If you set your thermostat to Snow Melting some specific settings will appear in the app. Min snow melting temp: The thermostat won‘t turn the heating on if the temperature is below this. RH%: Relative humidity percentage. This only works if a wireless temperature and humidity sensor is connected.
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Page 30: Error Codes
3 hours. Luckily there‘s an easy fix! Connect the thermostat to your phone via bluetooth with the BT21 app and the clock will automatically update and clear the error code. -
Page 31: Technical Data
Technical data Supply voltage 230V 50Hz Maximum load 16A (Resistive) Accuracy ±0.5°C Default sensor rating NTC 10kΩ @ 25°C Compatible sensors 2k, 12.5k, 15k, 33k Warranty 3 years IP rating IP21 External temp setback 230V 50Hz Bluetooth version Dimensions 86 x 86 x 10mm Backbox depth 25mm... - Page 32 Scan to watch the video “How to wire up” Scan to watch the video “Quick setup guide” Scan to watch the video “In depth setup guide” ThermoSphere Pattenden Lane Marden TN12 9QJ 0800 019 5899 hello@thermosphere.com Live well... thermosphere.com...
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