Programmable thermostat for electric underfloor heating
Thermotouch Glass
UK: 5220 / 5226
AU: 5220A / 5226A
UNDERFLOOR HEATING CONTROLS
Installation & User Guide
January 2018
2
Contents
Compatibility ............................................................... 3
What’s in the box? ....................................................... 4
Before you start ........................................................... 5
Installing your thermostat .............................................. 6
Wiring diagram ............................................................ 10
User interface .............................................................. 16
Set the time and date ................................................... 17
Heating modes ............................................................ 18
Heating schedule ......................................................... 20
Settings ...................................................................... 22
Technical data ............................................................. 24
Factory reset & key lock ................................................ 26
Energy saving features .................................................. 27
3
Compatibility
Thermotouch is compatible with Thermogroup NTC
10K floor sensor probes.
NTC 10kΩ @ 25°C
If you have an existing floor probe from another
thermostat that is not compatible, set your
thermostat to ambient temperature sensing mode.
(Not advisable for timber or other temperature sensitive floors).
Replacing an existing thermostat?
Contact the manufacturer’s technical department
and ask for the rating of the floor sensor at 25°C.
4
What’s in the box?
Check you’ve got everything:
• Programmable thermostat
• Floor sensor probe (3m)
• Floor sensor conduit (2m)
• Fixing screws
• Installation guide
• Portrait mounting plate (AU only)
You will also need:
• Electrical screwdriver
• Deep electrical back box (UK only)
• Electrical test meter
5
Before you start
Your thermostat should be:
• Installed 1.2 - 1.5m from the floor
• On an internal wall
• Outside any wet zones (IP30)
• Installed on an RCD protected circuit
• Away from drafts or heat 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
6
Installing your thermostat
1. 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.
Fuse Box Fused Switch
CAUTION
High Voltage
Cables
!
OFF
ON ON ON ON ON
OFF
7
Installing your thermostat
2. 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.
8
3. 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.
50m max.
Installing your thermostat
9
Installing your thermostat
4. Release mounting plate (UK)
Use a flat screwdriver to press in the catch (1) and push the black
plate down (2) to release the clips holding the thermostat together.
Separate the 2 sections (3) and disconnect the ribbon cable.
3600W/16A 230V/AC
2
1
3
Do not try to force the fascia off
without first pushing the black plate
down to release the clips!
10
Installing your thermostat
230/240V AC Supply Live
230/240V AC Supply Neutral
UFH Neutral (Load N)
UFH Live (Load L)
Earth (Ground)
Sensor connections
(No polarity)
5. 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.
7 6 5 4 3 2 1
11
Installing your thermostat
6. Fix mounting plate in position (UK)
Use a screwdriver to fix the mounting plate to the back box in
the wall. Now you can connect the white ribbon cable to the
fascia.
12
Installing your thermostat
7. Fix thermostat fascia in place (UK)
Locate the thermostat onto the mounting plate and
push down to clip in place.
13
Installing your thermostat
8. Fix mounting plate (AU)
If you are installing the AU version the wiring diagram is
the same, but the fixing plate works differently. Release the
mounting plate from the case and use a screwdriver to fix
the mounting plate to the wall. Pull UFH cold tail, mains and
sensor cables through and connect cables as shown on p10.
(Optional landscape mounting plate 5221/5223)
14
Installing your thermostat
9. Fix thermostat in place (AU)
Clip the plastic mounting plate over the steel plate and locate
the thermostat onto the steel clips. Push down to secure the
thermostat in place.
(Optional landscape mounting plate 5221/5223)
15
10. Switching on your system
It is important that all adhesives and
grouting is 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.
Wait for
7 - 10 Days
before you
switch on
!
Installing your thermostat
16
User interface
1
2
3
11
12
13
10
4
5
7 86 9
1. Day indicators
2. Time
3. Measured temperature
4. Heating on icon
5. Lock icon
6. Mode button
7. Up arrow
8. Down arrow
9. Power button
10. Event icons
11. Set temperature
12. Manual mode icon
13. Schedule mode icon
17
Setting the date and time
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
18
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 by
following the instructions on page 20.
Manual override
If you change the set temperature while the thermostat is running the
heating schedule, the new selected temperature will be maintained
until the next scheduled temperature change. The thermostat will then
revert to the preset heating schedule.
19
Heating modes
1234567 (Flashing) 7 individual days. Every day can be programmed to
follow an individual heating schedule.
1234567 Monday to Sunday the same. Every day will follow the same
heating schedule (6 heating events per day).
123456 Monday to Saturday the same and Sunday separate (6 heating
events per day).
12345 Monday to Friday the same with Saturday and Sunday separate
(6 heating events per day).
What is a heating event?
A heating event is an opportunity to change the temperature in your
heating schedule. Most people use 3 on and 3 off.
Heating schedule settings
In the advanced settings (see page 23) you can choose
between 3 different heating schedules.
20
Set up your heating schedule
*Check with your floor finish manufacturer for recommended maximum temperatures
1. Turn the thermostat on by pressing .
1. Press to switch to mode before you start.
2. Press to switch the unit off.
3. Press and hold for 7 seconds to edit your schedule. If
you have already set the clock press x3 to skip it.
4. 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*.
5. Press to advance to event 2 and use and to select
the desired time to switch to a lower temperature.
6. Press to save. Now use and to select the desired
Eco (or “Off”) temperature between 16 - 20°C.
7. Press to advance to event 3 and use and to select
the desired time to switch to a higher temperature.
Event 1
Wake Up
Event 2
Out
Event 3
Home
21
Set up your heating schedule
8. Press to save. Now use and to select the desired
Comfort (or “On”) temperature between 20 - 28°C.
9. Press to advance to event 4 and use and to select
the desired time to switch to a lower temperature.
10. Press to save. Now use and to select the desired
Eco (or “Off”) temperature between 16 - 20°C.
11. Press to advance to event 5 and use and to select
the desired time to switch to a higher temperature.
12. Press to save. Now use and to select the desired
Comfort (or “On”) temperature between 20 - 28°C.
13. Press to advance to event 6 and use and to select
the desired time to switch to a lower temperature.
14. Press to save. Now use and to select the desired
Eco (or “Off”) temperature between 16 - 20°C.
15. Press to activate your schedule and you’re done!
TIP! If you don’t want to use all of the available heating events you can
skip one by setting the same temperature as the previous event.
Event 4
Out
Event 5
Home
Event 6
Sleep
22
Advanced settings
Adjusting the settings
To access the settings, switch the unit off by
pressing .
Press and hold and together for 7 seconds.
Press to cycle between settings 01 to 18.
Use and to adjust the settings.
Switch the unit on by pressing to save your
settings.
NOTE: The thermostat will switch off after 30 seconds of
inactivity and any unsaved settings may be lost
23
Advanced 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
separate)
1234567 (7 days the same)
123456 (6 days the same
+1)
12345 (5 days the same + 2)
No numbers - Program off
7 days
separate
09 Status after power failure LA: On as before, OF: Off LA
24
MENU DESCRIPTION RANGE DEFAULT
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 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
5220: 5100, 5220A: 7020
5226: 7024, 5226A: 7025
NOTE: The thermostat will switch off after 30 seconds of
inactivity and any unsaved settings may be lost
Advanced settings continued
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 10kΩ @ 25°C
Consumption 2W
Warranty 3 years
IP rating IP30
Width 85mm
Height 85mm
Depth 46mm (31mm in wall)
25
26
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 and
the keys will not function.
To unlock the keys press and hold and together
for 7 seconds.
Factory reset
Find menu item 10 in the advanced settings (page 24).
Press and then . The thermostat will reset to factory
settings after 7 seconds. This will totally erase the time,
date, heating program and any adjusted settings.
27
Energy saving features
Adaptive Start
With the Adaptive Start feature enabled, Thermotouch 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!
Thermotouch starts learning from the first time you enable the heating
schedule. It turns on an hour early to start with and gradually optimises the
heat up time over 7 days.
Open Window Detector
When the Open Window Detection feature is enabled, Thermotouch can
detect sudden drops in temperature and will switch off your heating to
eliminate wasted energy.
Thermotouch will come back on after 30 minutes, provided the temperature
has stabilised.
You can activate and adjust these features in the advanced
settings menu. See page 24.
Service and support
Thermogroup UK
Bridge House
Hop Pocket Lane
Paddock Wood
Kent TN12 6DQ
UNITED KINGDOM
0800 019 5899
01622 689 440
www.thermogroupuk.com
sales@thermogroupuk.com
Thermogroup EU
Pinnacle House
Newtown Cross
The Ward. Dublin 11
D11 K27C
Rep. of IRELAND
01 866 0584
www.thermogroupeu.com
sales@thermogroupeu.com
Thermogroup AU
Thermogroup Pty Ltd
PO Box 822
Leeton NSW 2705
AUSTRALIA
1300 368 631
www.thermogroup.com.au
sales@thermogroup.com.au
Watch the video guide on our website
www.thermogroupuk.com www.thermogroup.com.au
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