ThermoSphere SCP-W TOUCHSCREEN PROGRAMMABLE
Compatibility
Sensor probes
- This thermostat is compatible with ThermoSphere NTC 10kΩ @ 25°C floor sensor probes.
Heating systems
- This thermostat is compatible with all ThermoSphere electric underfloor heating systems.
Replacing an existing thermostat?
- Contact the manufacturer’s technical department and ask for the rating of the floor sensor at 25°C.
What’s in the box?
Check you’ve got everything:
- Programmable thermostat
- Floor sensor probe (3m)
- Floor sensor conduit (2m)
- Fixing screws
- Installation guide and warranty information
- Portrait mounting plate
You will also need
- Electrical screwdriver
- Deep electrical back box
- Electrical test meter
Before you start
Your thermostat should be:
- Installed at least 1.2m from the floor
- On an internal wall
- Outside any wet zones (IP30)
- Installed on an RCD-protected circuit
- Away from any hot or cold influences
- Installed so that the floor sensor probe can be laid in a heated area of the floor
- Installed by a professional, in line with current electrical regulations and relevant local standards
Installing your thermostat
Switch off mains power
You will be installing your thermostat as part of a high voltage mains electrical circuit. To ensure your safety and to protect the thermostat, switch off the mains power and remove fuse from the spur before you start the installation.
CAUTION: High Voltage Cables
Installation location
- At this stage it its likely that an RCD-protected electric underfloor heating system has been installed and a back box is already in place.
- The underfloor heating cold tail should be pulled up through the back box, and the sensor probe installed (in the conduit provided) within the wall cavity or pre-chased channel in a solid wall.
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.
- Connect multiple heaters in parallel.
Un-clipping the mounting plate
- Lay the thermostat screen side down on a flat surface
- Press the white clip down with a flat screwdriver
- Push the mounting plate towards you
- Release the mounting plate form the clips
- Carefully un-clip the white ribbon cable
Use your phone camera to watch the video
Wiring diagram
- Connect the Thermostat to the underfloor heating (UFH) cold tail, power supply and floor temperature sensor.
- The floor temperature sensor is not polarity sensitive.
Fix mounting plate in position
- Use a cross-head screwdriver to fix the mounting plate to the back box in the wall. Now you can connect the white ribbon cable to the fascia.
Fix thermostat fascia in place
- Locate the thermostat onto the mounting plate and push down to clip in place.
Switching on for the first time
Warning: Wait for 7 – 10 Days before you switch on
- Do not switch your underfloor heating on unless the entire heating cable, cold tail joint and end termination are fully encased in tile adhesive.
- It is important that all adhesives and grouting are dry and fully cured before you switch on your underfloor heating.
- Most adhesives take between 7 to 10 days to cure. Follow manufacturer guidelines.
- The temperature of your underfloor heating should be increased gradually to avoid thermal shock in the floor. Start at 15°C and work up to your desired temperature 2-3°C per day.
- Observe any maximum temperature guidelines from your floor manufacturer.
User interface
- Day indicators
- Time
- Measured temperature
- Heating on icon
- Lock icon
- Mode button
- Up arrow
- Down arrow
- Power button
- Event icons
- Set temperature
- Manual mode icon
- Schedule mode icon
Heating modes
- When your thermostat is on you can tap
to switch between Manual and Schedule heating modes.
Manual mode
- Your thermostat will simply maintain the temperature you set manually until you ask it to do something else!
Schedule mode
- Your thermostat will follow a heating schedule that you can set up.
Temperature override
- When the thermostat is in Schedule mode, running your heating timer settings, it is possible to manually override the temperature without adjusting the schedule or switching to manual mode.
- You can adjust the temperature with the
and 
arrows. - If you override the temperature while the thermostat is running the heating schedule, the new override temperature will be maintained until the next scheduled temperature change.
- The thermostat will then revert to the preset heating schedule.
Setup
Setting the day and time
- Switch the unit off by pressing
. - Press and hold for 7 seconds until the time begins to flash.
- Use and to select the correct minute.
- Press to switch to hours and use and to select the correct hour.
- Press again to edit the day and use and to select the correct day. 1 = Monday & 7 = Sunday.
- Press to save your settings.
NOTE: The thermostat will switch off after 30 seconds of inactivity and any unsaved settings may be lost.
Set up your heating schedule
Turn the thermostat on by pressing it.
- Press to switch to mode before you start.
- Press to switch the unit off.
- Press and hold for 7 seconds to edit your schedule. If you have already set the clock press x3 to skip it.
- Use and to adjust the start time for event 1 and press to save. Now use and to select the desired Comfort (or “On”) temperature between 20 – 28°C depending on your floor finish*.
- Press to advance to event 2 and use and to select the desired time to switch to a lower temperature.
- Press to save. Now use and to select the desired Eco (or “Off”) temperature between 16 – 20°C.
- Press to advance to event 3 and use and to select the desired time to switch to a higher temperature.
- Press to save. Now use and to select the desired Comfort (or “On”) temperature between 20 – 28°C.
- Press to advance to event 4 and use and to select the desired time to switch to a lower temperature.
- Press to save. Now use and to select the desired Eco (or “Off”) temperature between 16 – 20°C.
- Press to advance to event 5 and use and to select the desired time to switch to a higher temperature.
- Press to save. Now use and to select the desired Comfort (or “On”) temperature between 20 – 28°C.
- Press to advance to event 6 and use and to select the desired time to switch to a lower temperature.
- Press to save. Now use and to select the desired Eco (or “Off”) temperature between 16 – 20°C.
- Press to activate your schedule and you’re done!
Don‘t want to use all of the available heating events?
- You can skip events by setting the same temperature as the previous event
Energy saving features
You can activate and adjust these features in the advanced settings menu.
Adaptive Start
- With the Adaptive Start feature enabled your thermostat will measure how long it takes for your individual floor to heat up and ensure the target temperature is achieved at the set time.
- So if you set your heating schedule to 24°C at 07:00, the floor will be at 24°C at 07:00. No need to set the heating to come on early! your thermostat starts learning from the first time you enable the heating schedule. It turns on an hour early to start with and gradually optimizes the heat up time over 7 days.
Open Window Detector
- When the Open Window Detection feature is enabled your thermostat can detect sudden drops in temperature and will switch off your heating to eliminate wasted energy.
- Your thermostat will come back on after 30 minutes, provided the temperature has stabilized.
Advanced settings
Adjusting the advanced settings
- To access the settings, switch the unit off by pressing it.
- Press and hold and together for 7 seconds.
- Press to cycle between settings.
- Use and to adjust the settings.
- Switch the unit on by pressing to save your settings.
| MENU | DESCRIPTION | RANGE | DEFAULT |
| 01 | Temperature calibration | -8°C ~ 8°C | 0°C |
| 02 | Maximum set point | 5°C ~ 80°C | 35°C |
| 03 | Minimum set point | 5°C ~ 80°C | 5°C |
|
04 |
Sensor mode |
IN (Ambient), OUT (Floor),
ALL (Ambient with floor limit) |
OUT |
| 05 | Frost protection | 5°C ~ 15°C or Off | 5°C |
| 06 | Floor temperature display | (ALL sensor mode only) | |
|
07 |
Temperature limit |
10°C ~ 80°C
(For ALL mode only) |
35°C |
|
08 |
Heating schedule setting |
1234567 Flashing (7 days programmed independently 1234567 (7 days the same) 123456 (6 days the same +1) 12345 (5 days the same + 2) No numbers – Program off |
7 days programmed independently |
| 09 | Status after power failure | LA: On as before, OF: Off | LA |
| 10 | Factory reset | Re (yes) | |
| 11 | Backlight timer | 10secs – 300secs (5mins) | 20s |
| 12 | Backlight brightness level | 1 (min), 2, 3, 4 (max) | 4 |
| 13 | Adaptive Start | 1 (On), 0 (Off) | Off |
| 14 | Open Window Detection (OWD) | 1 (On), 0 (Off) | Off |
| 15 | OWD Off Time | 2 – 30 minutes | 15 mins |
| 16 | OWD Temperature Drop Limit | 2, 3 or 4°C | 2°C |
| 17 | OWD Heating on again after | 10 – 60 minutes | 30 mins |
|
18 |
Software version |
Factory reset & key lock
Locking the keys
- To lock the keys press and hold and together for 7 seconds.
- The
icon will appear when the keys are locked. None of the keys will function. - To unlock the keys press and hold and together for 7 seconds.
Factory reset
- Find menu item 10 in the advanced settings.
- Press and then press.
- The thermostat will switch off and reset to factory settings after 10 seconds. This will totally erase the time, date, heating program and any adjusted settings.
Technical data
| Supply voltage | 230V/240V 50/60Hz |
| Maximum load | 16A |
| Backup storage | EEPROM (approx. 1 year backup) |
| Temperature range | 5 ~ 80°C (0.5°C increments) |
| Accuracy | ±0.5°C |
| Sensor rating | NTC 10kW @ 25°C |
| Consumption | 2W |
| Warranty | 3 years |
| IP rating | IP30 |
| Width | 85mm |
| Height | 85mm |
| Depth | 46mm (31mm in wall) |
Troubleshooting guide
| Problem | Possible causes | Things to try |
| Very high temperature reading | Software issue | Factory reset |
| Incompatible sensor | Use a multimeter set to 20KΩ to test the resistance of the sensor probe. If the probe does not read between 8 to 12KΩ then it is likely to be a sensor probe from a different manufacturer and will need to be replaced with a ThermoSphere NTC10K sensor probe. | |
| More than one sensor installed |
Sometimes more than one floor sensor is connected to the thermostat by mistake. This results in a high resistance and incorrect temperature readings that are much higher than normal. Check that there is only 1 sensor probe connected to your thermostat. |
|
|
High temperature influence |
Check whether there are any high temperature influences around the thermostat or the floor sensor probe.
For example if the thermostat is situated on a south facing sunny wall in a conservatory it may pick up a high temperature from the solar gain.
If the floor sensor is in the floor and situated near a hot water pipe it will read a high temperature.
If the floor sensor is in an area of the floor covered by a mat or dog bed this area of the floor would read much hotter than areas of the floor not covered by insulating objects** |
| “Er” error message | No floor sensor installed | Isolate power and check that a compatible NTC10K sensor probe is connected to terminals 6 & 7.
If no sensor is installed you will need to have one installed or run the system on air/ambient temperature only* |
| Faulty floor sensor |
If there is a sensor connected then it may be faulty. Disconnect the sensor from the terminals and test the resistance using a multimeter on the 20KΩ setting.
The sensor is rated at 10KΩ at 25C and fluctuates with temperature differences.
Depending on the temperature the resistance reading should be somewhere between 8 – 12KΩ.
If the sensor is faulty it will need to be replaced |
|
|
Flashing back-light or any fault with the display or button functions |
Bad connection between display and power unit | Take the front plate off of the thermostat using a flat screwdriver.
Unplug the white ribbon cable and check the cable and pins for any signs of damage. If no damage is found replace the cable, click the display back into position and turn on. |
You should not attempt to troubleshoot the wiring of your thermostat unless you are confident with electrics and have switched off the supply. Call an electrician if you are not confident in doing this yourself.
Electric floor heating systems should not be covered by insulating objects such as rugs, dog beds or furniture that prevents air flow over the floor. Covering a floor heating system in this way can cause overheating issues which can damage floor coverings and cause heating cable failure.
CONTACT
Thermogroup Ltd T/A ThermoSphere
- Pattenden Lane
- Marden TN12 9QJ
- Tel: 0800 019 5899
- [email protected]
- thermosphere.com
Reference
Download Manual:
ThermoSphere SCP-W TOUCHSCREEN PROGRAMMABLE INSTRUCTION GUIDE
ThermoSphere SCP-W TOUCHSCREEN PROGRAMMABLE INSTRUCTION GUIDE
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