thermowire Loose Wire Undertile Heating Cable User Manual

Thermowire
Underfloor Heating
Loose Wire Undertale
Heating Cable Installation Guide

Thank you for your purchase

Thank you for choosing a Thermogroup product. Our commitment to simple, honest, on-time quality service ensures that we are here to help throughout every stage of your project from idea to installation and, most importantly, after sales support.
This document will provide a step-by-step guide to a perfect installation as well as details on the warranty and how to get technical support should you need it.
To ensure a safe, hassle-free installation to be proud of, please take the time to read this guide in full before you start. We’ve taken the time to highlight potential pitfalls and  common errors to avoid and get the job done!
Thermowire is covered by a lifetime warranty, subject to terms and conditions. Be sure to keep the receipt as proof of purchase, this will be required to validate your Lifetime warranty.
Please complete the Customer Handover section on page 18-19 in full so that your customer has all the information they need to complete the online warranty form and  register their Thermowire Lifetime Warranty.
If you have any questions about your Thermowire Underfloor Heating or any of our other products call our technical support team on 1300 989 464. We will do our best to  find a solution and will always give that little bit extra…
Thanks again for choosing a Thermogroup product.

Thermogroup
PO Box 822 19 Ridley Ave
Leeton NSW 2705
1300 989 464
sales@thermogroup.com.au
www.thermogroup.com.au
E&EO © Thermogroup 2022

Products Checklist

Thermowire loose wire heating cable
Thermopile is an undertilde loose wire heating system ideal for installing in small awkward areas and is designed to be installed directly beneath the tiles.
Please note some cable reels are supplied in a white box.

Fixing tape
A 25m roll of fixing tape is included with all Thermopile cables as the standard fixing method for use on any substrate.

Thermotouch thermostat
Thermopile is compatible with all the Thermotouch controllers. Options available include manual, fully programmable single, dual and WiFi controllers.
Thermowire T kits include the 5220A thermostat.
Thermopile TD kits include the 5245 thermostat.

Mat alarm
The 6025 mat alarm is included in all Thermowire Underfloor Heating Thermostat kits. This alarm is designed to be connected to the Thermowire cable whilst tiling to alert  of any damage to the heating cable.
This does not eliminate the need for conducting the resistance tests as stated in this installation guide.

Floor sensor and flexible conduit
The floor sensor is a small probe that is designed to be installed at the same level as the Underfloor Heating to measure the accurate floor temperature. This is designed to be  housed in the flexible conduit provided to allow for replacement if required.
Please note: These are located in the thermostat box beneath the thermostat.
The floor sensor is coiled on the inside of the flexible conduit.

Econoboard insulation boards (optional)
Econoboard insulation boards provide an insulated, prepared surface for the installation of an electric Underfloor Heating system. It is recommended to install insulation  boards directly below the heating system to reduce running costs and increase response times.
Coated and Uncoated boards are available in a 6 or 10mm thickness.

Installation Do’s & Don’ts

You must ensure that all the yellow heating cable and the entire cold tail connection (the join between the heating element and the flexible power supply lead) is fully  encapsulated in flexible, cement based tile adhesive or levelling compound.
Please ensure that the end termination (the join at the end of the heating cable) is also fully encapsulated in tile adhesive or levelling compound.
The cold tail joint and end termination must not be placed into a cut out of insulation or substrate and covered with tape. This can cause the cable to overheat and fail over  time.
The entire heating element (everything that is yellow) must be encapsulated in a flexible, cement based tile adhesive or levelling compound.

Do’s
Ensure the electrical circuit is protected by a suitably rated RCD and complies with local regulations
Ensure the sensor conduit is positioned between 2 runs of heating cable in a representative area of the floor
Make sure all the heating cable and cold tail connections are fully covered in a layer of flexible, cement based levelling compound or tile adhesive
Take care to ensure all joins in the Econoboard are as flush as possible, using reinforcing tape if necessary
Take care to ensure all electrical work complies with current electrical regulations
Locate the thermostat in accordance with the current guidelines
Read this document in conjunction with instructions for associated accessories (e.g. thermostats)
Ensure test procedures A, B & C are carried out, this is essential for completion of the warranty
Install conduit in accordance with the instructions on page 13 to facilitate the replacement of the sensor probe if required
Follow manufacturers recommendation for all associated products such as self- levelling compound or tile adhesive
Protect the heating cable during installation, as this is when it is most prone to damage
Keep foot traffic to a minimum
Install a suitably rated contactor/snubber if required
Make sure that the fixing tape is tucked tightly around the cable when fixing to the substrate.
Bridging the cable will leave air pockets which can cause the cable to burn out
Use a full bed of tile adhesive when tiling over directly. Do no dot and dab.
Take care not to cut or nick the heating element when cleaning the glue out of the grout lines
Ensure that the cables are evenly spaced across the floor to ensure there is no cold spots

Don’ts
Cut or shorten the yellow cable under any circumstances! This will cause a faulty circuit and potential fire hazard
Place the cold tail connection or end termination in a recess in the floor or insulation boards and cover with tape. This causes air pockets and leads to cable failure
Place the cold tail connection in the conduit. The entire connection needs to be fully encased in a cement based substance
Position temperature sensor near pipes, external doorways or other temperature influencers
Lay insulation on top of the Underfloor Heating (UFH) or a dusty substrate. Insulation on top of UFH will reflect all the heat emitted back into the substrate
Wire multiple cables in series to the thermostat Turn on system until adhesives and levelling compound is fully cured
Leave boxes or furniture on heated flooring Strain or bend the cold tail or end termination at any point
Allow the heating cables to touch or cross over each other
Allow excessive traffic of any kind over the cable
Cut tiles over the heating cable
Place tools, buckets of glue, stacks of tiles or anything heavy over the cable
Place any product over the floor covering that has a tog rating higher than 2.5
Place bean bags, cushions or fixed furniture over the heated floor covering
Turn on the heating cable while it is coiled up or before it has been covered by a levelling compound or tile adhesive
Proceed with installation if the tested resistance is not within -5% to +10% of the stated resistance
Space the cables closer than 40mm apart

Installation Summary

1. Plan out the installation
Determine the location of the thermostat and floor  sensor, calculate the available floor space (excluding  floor mounted fixtures) and calculate the required  cable spacing. Check you have all the required components. See details on page 4.| 2. Rough in prior to sheeting walls
Install two 20mm conduits with sweeping bends at  the thermostat / floor sensor position. Insert the supplied flexible conduit into the one conduit and out into the floor. Insert the floor sensor probe into the flexible conduit. See more details on page 13.| 3. Clean the floor
Ensure the substrate is clean and free from any dust and debris. It is recommended to vacuum and mop the substrate.
4. Install Econoboard insulation (Optional)
Glue down the uncoated Econoboards to a  concrete substrate or screw down (with washers) the coated Econoboards to a timber substrate. See more details on pages 10-11.| 5. Conduct test no. 1
Test the floor heating as per details on page 8 and  record the results on page 18-19.| 6. Lay out the Thermowire cable
Run the heating cable back and forth throughout  the room using the spacing calculated and fix in  position using the tape provided.
NEVER CUT THE YELLOW CABLE.
7. Secure heating cables in place
Once all the cables are fixed into position go back  and add additional strips of tape to ensure the cable  is lying flat across the entire floor and the tape is  tucked firmly around the heating cable with no air pockets.| 8. Conduct test no. 2 and wire up the mat alarm
Test the floor heating as per details on page 8 and  record the results on page 18-19. Wire up the mat  alarm to the end of the black cold tail according to the instructions on page 9.| 9. Install floor finish
Take images of the installed cables before installing  the floor finish. Cover the heating cables with a  flexible cement based self-levelling or tile on top directly using a full bed of tile adhesive.
See more details on page 15.
10. Conduct test no. 3
Test the floor heating as per details on page 8 and  record the results on page 18-19 before the floor  finish is laid.| 11. Wire up the Thermostat
Wire up and mount the thermostat according to the wiring diagram and installation details in the  thermostat instruction guide.| 12. Complete the customer handover form
Ensure the details are complete on the customer  handover form (page 18-19) and pass this onto the  client for online warranty registration.

Installation Checklist

Before you start

• Run the power feed to the thermostat position
• Read and understand the installation guide in full
• Read and understand the test procedure
• Install two conduits (for the cold tail and floor sensor) from the thermostat position into the floor
• Feed the supplied flexible conduit down one of the conduits and out into the floor
• Use a contactor/snubber if required
• Calculate available floor space and double check the cable is the correct size for the room as per details on page 12
• Calculate the correct cable spacing for the length of cable and available floor space. Minimum spacing is 40mm and maximum spacing is 110mm

Econoboard insulation (Optional)

• Identify substrate and correct insulation required
• Calculate how many boards you need
• Ensure the substrate is clean and level
• Install insulation according to the relevant guide

Laying the Thermowire heating system

• Test the resistance of the heating cable and record results – Test A
• Create a cable spacer template the size of the calculated spacing
• Lay out the heating cable using the spacing calculated
• Leave a gap of 50-100mm between the cable and the walls
• Check the cold tail will reach the thermostat position
• Push the sensor probe to the end of the conduit
• Keep the cap in the end of the floor sensor conduit
• Feed the cold tail up wall to the thermostat position
• Ensure the cold tail connection is not in the conduit
• Tape cables down using tape provided
• Test the resistance of the heating cable and record results – Test B
• Wire up the mat alarm
• Take photographs of the completed install
• Either tile over directly with a solid bed of cement based flexible tile adhesive or cover with a self-levelling compound

After tiling/laying the floor covering the floor

• Test the resistance of the heating cable and record results – Test C
• Wire up the thermostat to a RCD protected circuit
• Connect wiring in accordance with the relevant wiring diagram
• Complete and sign the customer handover form
• Give the customer a completed copy of the customer handover form
• Give the customer a copy of the proof of purchase
• Give the customer a copy of the thermostat instructions
• Wait until glues/self-levelling are fully cured before turning the floor heating on

Important Testing Procedure

Thermowire heating cables must be properly tested before installing. To ensure no damage has occurred, the cables need to be tested again after the floor heating has been  laid and again once the floor has been tiled. To perform these tests, you will need a multimeter and a mega. Results of the tests need to be recorded on the customer  handover form (page 18-19) in order to complete the warranty registration.

Heating cable resistance test
Connect a multimeter, set for resistance measurement between the live and neutral power leads. Record the results on page 18-19. If the measured resistance falls outside a  tolerance of -5% to +10% it may mean the cable is damaged or the multimeter is not set correctly.
Continuity between earth and conductors
The conductor cables are separated from the earth cable by an insulator. Verify that there is no contact between the earth and the conductors by connecting a multimeter, set  to continuity between the earth and both conductors. Record results on page 18-19.

Insulation resistance test
This test will detect very small holes in the insulating layer that separates the conductors from the earth. These small holes are not usually detected by the continuity test  because they are not necessarily short circuits.
Connect a meggar calibrated to 500V to one of the conductor cables and the earth. If there is no current leakage, the insulation resistance between Repeat for the 2nd  conductor cable. Record results on page 18-19.

Floor temperature sensor testing
Connect a multimeter to the two conductors of the floor temperature sensor probe. Measure the resistance at room temperature. The 20°C. Record results on page 18-19.
The ambient temperature will affect the resistance readings of the floor heating cable and the floor sensor.
Both the floor heating cable and floor sensor resistance have been tested at 20°C. If the ambient temperature is lower than 20°C the measured resistance will be higher than  the stated resistance and if the ambient temperature is higher than 20°C the measured resistance will be lower than the stated resistance.

https://qrs.ly/7uaoqp5

Scan here to view the video showing how to perform a full testing procedure
If you are unsure about any of the tests or results, please contact technical support on 1300 989 464 before proceeding

Mat Alarm Explained

The mat alarm is a small white unit that is used to monitor the integrity of the cable during tiling or screening.
PLEASE NOTE: The use of the mat alarm does not replace the need for the full resistance tests as outlined on the previous page at any stage throughout the installation.
Do not proceed with tiling/self-levelling if the resistance reading is not within -5% to +10% of the values published on the cable labels. Once the tests have been completed you will need to install the mat alarm.

The mat alarm is there to safeguard against any damage to the heating element during the tiling or self-levelling process. It gets connected to the end of the cold tail. The  monitor is designed to monitor the cables individually however by making a temporary ‘series’ connection of multiple cables it can monitor up to three cables at a time

1. Switch the unit on and the alarm should sound, and the red light will be lit. The alarm will sound when the cables are not connected.

2. When the cables are connected the green light will be lit. If the green light goes out, please replace the batteries before continuing.

3. Make sure the cables to be monitored are not connected to a power source. Wire up the cold tail to the mat alarm as per the photo opposite and details below.

4. Set the switch to the ‘ON’ position and the green light will indicate that the monitor is operating.

5. Hang or place the monitor where it can be seen and heard during installation.

6. A red light and alarm indicates cable damage or disconnection of cables from the monitor. Check connections and the integrity of the heating cable before continuing  with the installation.
   Mat alarm with single element

7. If damage to the cable is suspected please contact the technical helpline on 1300 989 464.

For a single element
Terminal 1: Neutral
Terminal 2: Live
Terminal 3: Earth

For two elements
Terminal 1: Neutral from cable 1
Terminal 2: Live from cable 2
Terminal 3: Earth from both cables
Twist together the live from cable 1 and the neutral
from cable 2 to complete a series circuit

IMPORTANT!
Multiple cables are connected to the alarm in series, for monitoring purposes only. When completing the final circuit, multiple cables must be connected to the thermostat in parallel.

https://qrs.ly/dvaoqpi

Scan here to view the video on mat alarm explanation and wire up

Insulation Information

Econoboard Insulation is essential for an energy efficient electric Underfloor Heating system. A layer of Econoboard will help prevent heat loss into the substrate and ensure  faster heat-up times for the Underfloor Heating.
Econoboard Insulation comes in both coated and uncoated options. Econoboard Coated boards consist of a high-density extruded polystyrene core with a polymer modified  fiber reinforced cement coating on both sides, whereas the Econoboard Uncoated boards are made from an XPS extruded polystyrene foam. Using the correct type of  insulation board is vital for the correct floor build-up and optimal performance of your heating system.
Uncoated Econoboard boards are designed to be used over a solid, stable substrate such as a concrete substrate or cement sheeting while Coated Econoboard boards are  designed for use on a timber substrate as the fiber reinforced cement coating adds strength and rigidity to the floor build-up. Uncoated Econoboard is not recommended for  use where a waterproofing layer will be applied directly over the insulation. In this application use the Coated Econoboard.

The Econoboard Insulation boards are adhered onto the substrate (either above or below the waterproofing)
in an offset brick pattern. The Coated boards are fixed down to the timber substrate using Econoboard fixing washers and screws and Uncoated boards are glued down with  a full bed of tile adhesive.
Installing Uncoated Econoboard

1. Measure your floor space and calculate how many boards you will need using the simple formula below
   A single board = 1.2m2x 0.6m2= 0.72m2
   Floor space (m) = Number of boards 0.72m 2

2. Cut the Econoboard Uncoated boards to size to suit your room layout. Econoboard Uncoated can be cut very easily using a sharp blade or wood saw. Please take  appropriate care when using sharp tools.

3. Ensure your substrate is secure, clean and free from dust and loose particles. Mix flexible tile adhesive in accordance with manufacturer instructions (which is often  wetter than what is normally used) and spread using a notched trowel. Spread enough adhesive for one board at a time to prevent adhesive drying between board  application.

4. Lay the Econoboard onto the adhesive in an offset brick pattern taking care to squeeze out any air pockets in the adhesive. For a more secure finish make sure all boards  are flush and tape over the joins using reinforcing tape (6015).

Uncoated Econoboard is not recommended for use where a waterproofing layer will be applied directly over the insulation. In this application please use the Coated  Econoboard.
Installing Coated Econoboard

1. Measure your floor space and calculate how many boards you will need using the simple formula shown above.
2. Cut the boards to size to suit your room layout. Econoboard Coated boards can be cut very easily using a sharp blade or wood saw. Please take appropriate care when  using sharp tools.
3. Ensure your substrate is secure, clean and free from dust and loose particles. Set out your cut boards onto the area in an offset brick pattern. Boards need to run in the  opposite direction to the floorboards. Fix into position using fixing screws and washers at 300mm centers (10 washers per board).

Please note that you cannot screw down the boards if the substrate has already been waterproofed as this will compromise the waterproofing.

https://qrs.ly/rwaoqpp

Thermowire Installation

Calculate spacing & prepare room for heating
Measure your room, if you don’t already know the dimensions, and make a note of the available floor space excluding any obstacles or fixtures you might have such as sanitary  ware, furniture or drainage. The Thermowire heating system is safe to be installed in the shower area providing that it is fully encased in the self-levelling or tile  adhesive layer, however do not start or end in the shower.
Allow between 130–170W/m2 based on available floor space to calculate required length of cable.
Correct spacing is essential for an efficient system. Ensure the Thermowire cable is spaced evenly. Use the below cable spacing formula to calculate the ideal cable spacing.
Available floor space (m ) x 1002 = Cable spacing (cm)
Cable length (m)

Example spacing calculation:

Load calculation:
Use the below formula to work out the overall current draw for your Thermowire system. If this value is over 16Amps (A) you will need to have a contactor and snubber  installed by a qualified electrician. Call our technical help line on 1300 989 464 if you have any questions.
Sum of individual heating cables loads = Total load (W)
Calculate the current draw in amps (A) by dividing the total load (W) by the working voltage
Total load (W) = Total current draw in amps (A)
240 (V)
Test the resistance (using instructions on page 8) of the heating cable prior to starting the installation. Compare the tested resistance to the correct resistance of the cable and  ensure this is within -5% to +10%. Record the result on the customer handover form (page 18-19).
It is recommended to install a layer of Econoboard insulation below the heating to improve the efficiency of the heating by preventing downward heat loss and reducing heat  up times. See details on page 10-11.
If not using Econoboard, a suitable floor primer product can be used to prime the floor prior to the installation of the Underfloor Heating. The primer helps the tape to  adhere to the substrate. Please follow the manufacturers instructions on the suitable use of the floor primer.
Make sure your substrate/insulation is clean and dust free before installing your heating cable. Measure and mark all fixtures in the room.

Position and install conduit and floor sensor

Run the 240V mains power feed to the thermostat position. Ensure the electrical circuit is protected by a suitably rated RCD (residual current device). Install a suitably rated  contactor if required. Install the electrical plate for the thermostat in the desired position. Please refer to the relevant thermostat instruction guide for more details. Install two  20mm conduits with sweeping bends from the thermostat to the floor prior to sheeting the walls. The one conduit will house the flexible floor sensor conduit and the  second conduit is for the cold tail(s).
It is important not to position the sensor conduit near any temperature influences (such as water pipes or doorways) or in a place where furniture or rugs might be placed  over the sensor as this will affect the accuracy of the temperature reading. Feed the flexible conduit down one of the 20mm conduits and out onto the floor. Please note you  will need to groove out into the substrate or insulation board to allow for the 13mm conduit. Ensure the black cap is firmly in the end of the conduit, this is to ensure no  adhesive enters the conduit.
The floor sensor conduit provided is to facilitate the sensor replacement if ever needed without the need to remove tiles or the floor covering. Now feed the sensor probe  cable down into the conduit ensuring it is pushed right to the end as this will help to provide the most accurate reading.
The sensor probe cable can be shortened or lengthened. If you need to cut the sensor probe you must only cut the end with the exposed wires not the end with the plastic  probe. The sensor can be extended, to a maximum of 50m, using a twin core 1mm flex.
The cold tail can also be shortened or lengthened. Cold tails can be extended using a twin core and earth electrical flex, suitably sized to take the load of the Underfloor  Heating system. Please note the connection to the extension cabling should not be under the floor.
Feed the cold tail up the second 20mm conduit to the thermostat position. The heating cable is a single ended product so there is no additional cold tail to return to the  thermostat position.
Do not install the heating under any fixtures or solid based furniture.
Do not place the cold tail connection or end termination in the wall/floor cavity, in the conduit or in a recess in the floor/insulation boards covered with tape. This causes an  air pocket which voids the warranty and leads to cable failure.
Leave 50-100mm space between the wall and the heating cable.

Fix cables in place

Beginning from the thermostat position, start running the heating cable throughout the room using the cable spacing calculated on page 12 and fix in place using strips of  cloth weave tape.
To keep a consistent cable spacing, cut a template to the desired spacing. Continue to run the cables out across the room fixing into position as you go.
When taping down the cable ensure that the tape is pressed tight around the cable to ensure the cable is fully encased and there are no air pockets around the cable that could  potentially lead to cable damage. Do not run long lengths of tape along the runs of heating cable. The tape is designed to fix the cable in position not to cover the entire heating cable.

When approaching objects such as a floor waste arrange the cable around the fixture to ensure consistent cable spacing from the fixture.
There is a piece of black tape halfway along the length of the cable, when you reach this point take a moment to check that you are halfway through the room. If not  recalculate the spacing and adjust slightly, as necessary.
Once all the cables are fixed into position it is recommended to go back and add additional strips of tape to ensure the cable is lying flat across the entire floor. Take  photographs of the completed install for warranty purposes.

Test the resistance (using instructions on page 8) of the heating cable once the heating cable has been installed and the floor is ready for tiling. Compare the tested resistance to the correct resistance of the cable and ensure this is within -5% to +10%. Record the result on the customer handover form (page 18-19).

Install the floor finish
Wire up the mat alarm to the cold tail and turn the unit on. This device will sound an alarm if the cable is damaged during installation or laying of the floor finish. If you hear  the alarm sound, stop immediately and call 1300 989 464 for technical assistance. Please note the use of this device does not replace the need for a full resistance test at the  three points outlined. For more details on the mat alarm see page 9.
The entire floor heating cable (including the entire cold tail connection and the end termination) needs to be encased in a flexible, cement based compound (No specific  brand required). Thermowire can be tiled over directly (ensuring a full bed of tile adhesive) or covered in a self-levelling compound.
Take care not to damage the heating cable with the notched trowel. To allow for the adhesive to fully cure you must wait two weeks, unless otherwise stated by the  manufacturer, before turning on the heating system. Extra care should be taken when cleaning out between the tiles prior to grouting to ensure the heating cable is not  damaged.
In some cases, it may be necessary to install other floor finishes such as laminate, engineered board, vinyl or carpet over the Thermowire system. Before doing so you should  check with the flooring manufacturer that your desired floor finish is suitable for use with electric Underfloor Heating and ensure the thermostat is set to limit the  temperature to the manufacturer’s maximum temperate guidelines. Thermowire heating cables must be covered with a minimum of 10mm layer of flexible self-levelling  compound for floor finishes other than tiles.

Final test and wire up of the Thermostat
Test the resistance (using instructions on page 8) of the heating cable once the floor finish has been installed. Compare the tested resistance to the correct resistance of the  cable and ensure this is within -5% to +10%. Record the result on the customer handover form (page 18-19).
The thermostat must be installed by a qualified electrician in accordance with the current local electrical regulations. The installation and wiring of each thermostat model is  different. Consult the instruction guide supplied with the thermostat for wiring diagram and installation details. When wiring up multiple mats to a single thermostat ensure  the mats are wired in parallel.
Thermostats should be connected to a single phrase mains supplied via an RCD. The RCD rating is dependent on the overall load of the system.
Check the thermostat installation guide for maximum switching loads. If the system load exceeds the maximum load of the thermostat a suitably rated contactor will need to be installed.

https://qrs.ly/g8aoqq8

Scan here to view the video on how to wire up the thermostat

Complete the customer handover form
Once the installation is complete the installer needs to ensure the customer handover form (page 18-19) is complete. This completed form along with photo(s) of the layout  of the heating and a proof of purchase needs to be presented to the end user/homeowner to allow for the completion of the lifetime warranty registration. A warranty will  not be granted unless this information has been completed in full and submitted via the online form at www.thermogroup.com.au/warranty. The homeowner needs to keep a copy of the handover form in case of a warranty claim.

Operation and FAQS

To allow for the levelling compound or tile adhesive to fully cure you must wait two weeks, unless otherwise stated by the adhesive/screed manufacturer, before turning on  the Underfloor Heating system.
The heating may be slow to react at first especially if installed on a new slab. When turning the floor heating on for the first time, we recommend setting the floor  temperature at approx. 18°C and building up by 1°C per day until the desired temperature is reached.

What should I do if I have left-over heating cable?
You should always measure the room accurately and choose a system that covers the available heating area. If you do have extra cable you can reduce the spacing between the  runs of cable (min.
spacing 50mm), run it around the edge of the room, or in the shower as long as it is covered by a cement based flexible tile adhesive or self-levelling.

Can I cut the heating cable if I have excess?
No – never. Cutting the heating cable will alter the resistance and cause the element to overheat.
If you cut the cable by accident, please call our technical helpline for assistance. Cutting the element will void the warranty.

Can I join two or more heating cables to fit a larger area?
No, the heating cables cannot be joined together however two or more can be connected in parallel to one thermostat. When connecting multiple cables you need to ensure  that the total load does not exceed the max load of your thermostat.
If the load does exceed the load of the thermostat a suitably rated contactor will need to be installed.

What happens if it goes wrong or breaks under my floor?
There are no moving parts to an electric Underfloor Heating system and cable failures are extremely rare, if installed correctly. A
damaged cable can usually be located and repaired with minimal disruption.

How long will it take for the floor to heat up?
Every situation is different due to the insulation value of the property, type of flooring used and the level of insulation below the heating system. The first time you  turn the  heating system on it will take longer to heat up.

Can I turn the heating on to make sure it heats up before the floor is tiled?
No. The heating cable systems need to be enclosed in a cement layer to help spread the heat.
Turning on the heating before the cement layer is applied will cause the cable to overheat and burn out. The heating cable needs to be tested by a qualified electrician to  ensure no damage has occurred during installation.
See testing details on page 8.

Can you walk on the installed heating cables before the tiles are laid?
Whilst the cable is durable and will handle foot traffic we recommend reducing walking on unfinished floor surfaces to a minimum as a precaution. Avoid putting heavy  objects with sharp edges (such as buckets of tile glue) down on the cable.

Is the Underfloor Heating installed above or below the waterproofing?
As the floor heating is IP68 rated it can be laid above or below the waterproofing. Please note the waterproofing cannot be installed directly over the heating cable as the  heating cables need to be encased in a flexible, cement based compound.

Does the floor sensor have to be installed in the conduit?
We recommend the use of a conduit for the floor sensor so that in the event of a floor sensor failing or the thermostat being upgraded, the floor sensor can be replaced  without damaging the floor covering. If this is not possible, we recommend installing a second floor sensor as a spare.

Warranty Information

The Thermogroup Lifetime Warranty guarantees Thermowire Underfloor Heating to remain free from defects in workmanship and materials under normal use and maintenance, and is guaranteed to remain in full working order subject to the conditions and limitations below:
Thermowire Underfloor Heating is guaranteed for the Lifetime of the floor covering under which it is originally fitted subject to the following conditions. Please pay attention  to the exclusions listed at the end of this warranty statement.

Thermogroup Lifetime Warranty applies:

1. Only if the product is registered, and the registration information is received and documented by Thermogroup, within 60days after install. You can register your product by completing the form online at www.thermogroup.com.au/warranty. Proof of purchase must be presented to make a claim, so please ensure that you keep a copy of  both your invoice and purchase receipt in a safe place. Such invoice/receipt should clearly state the model that has been purchased and be in legible condition so as to aid in identifying the system.
2. Only if the Thermowire Underfloor Heating has been properly earthed and protected by a Residual Current Device (RCD) at all times.

This warranty does not cover any thermostats as these are covered by a separate 3 year warranty from the date of purchase.
All Thermogroup warranties become void if the floor covering under which the Thermowire Underfloor Heating is originally fitted, is damaged, lifted, replaced, repaired or  covered with additional layers of flooring. The Thermogroup Lifetime Warranty does not cover accidental damage, including but not limited to damage caused to the cable by laying, lifting, replacing or repairing the original covering.
The warranty period starts on the date of purchase, but the registration is only confirmed when the online warranty form has been complete and the registration details are  submitted to the online warranty database in full, checked by Thermogroup and written confirmation is issued. Should it be required, Thermogroup will arrange for the  Underfloor Heating loose wire element to be repaired or (at the discretion of Thermogroup) have parts replaced free of charge. If a fault is proved to be a manufacturing  defect, Thermogroup will make good the floor covering to the original condition.
The Thermogroup Lifetime Warranty does not cover damage caused during installation, tiling or installation of any floor covering. Therefore, it is important to adhere strictly to the installation guide provided and follow the full test procedures detailed in this document before, during and after installation. Failure to do so will result in a void warranty. Thermogroup are, in no event, liable for incidental or consequential damages, including but not limited to extra utility charges or damages to property.

Thermogroup are not held accountable for:

1. Damages or repairs as a result of incorrect installation or application.
2. Damages as a result of floods, fires, winds, lighting, accidents, corrosive atmosphere or any other conditions/ situations deemed beyond the control of Thermogroup.
3. Use of incompatible components or accessories.
4. Products installed outside of Australia.
5. Normal maintenance and care procedures.
6. Parts not supplied or designated by Thermogroup.
7. Damages or repair required as a direct result of any improper maintenance, operation or servicing.
8. Failure to power up or start as a result of inadequate/interruption of electrical service.
9. Changes in the appearance of the product that do not directly affect the performance of the product.

Important Notes:
Any repaired Thermogroup Underfloor Heating element carries only a 5 year warranty. Repairs that are made to rectify any damage other than manufacturing defects are not  covered by the Thermogroup warranty. Damage as a result of miss-use, improper installation, use of improper accessories or adhesives or unsuitable substrate conditions are  in no event covered by any Thermogroup warranty.
Our goods and services come with guarantees that cannot be excluded under the Australian Consumer Law. For major failures with the service, you are entitled: to cancel  your service contract with us; and to a refund for the unused portion, or to compensation for its reduced value.
You are also entitled to choose a refund or replacement for major failures with goods. If a failure with the goods or a service does not amount to a major failure, you are  entitled to have the failure rectified in a reasonable time.
If this is not done you are entitled to a refund for the goods and to cancel the contract for the service and obtain a refund of any unused portion. You are also entitled to be  compensated for any other reasonably foreseeable loss or damage from a failure in the goods or service.

Customer Handover Form

INSTALLER: The installer must complete the full test procedure and complete this page in full and give it to the homeowner to keep in case of a warranty claim.
HOMEOWNER: Use this information to register your Lifetime Warranty at www.thermogroup.com.au/warranty.
You must also keep this document for your records in case of a warranty claim.

Room reference| Stock no.| Manufacturer’s values| Before installation (Test A)| After cable installation (Test B)| After tile/ flooring  installation (Test C)
---|---|---|---|---|---
Resistance measurement of the electric heating cable
| | | | |
| | | | |
| | | | |
Two conductors and earth braid continuity test
| Infinity (I) or
Overload (OL)| | | |
| | | |
| | | |
Insulation resistance test between conductor cables and earth braid
| Equal to or greater than 1GQ| | | |
| | | |
| | | |
Floor temperature sensor test
| | | | |
| | | | |
| | | | |

Installer Details
I Name:……………………………………………………..
I Company:………………………………………………..
I Email:……………………………………………………..
I Phone:…………………………………………………….
I Address:………………………………………………….
I Signature:………………………………………………..
I Date:……………………………………………………….

Stock Code| Area (m2)| Length (m)| Output (w)| Resistance (Ω)
---|---|---|---|---
101502| 1.0 – 1.4| 14| 185| 286
101503| 1.5 – 2.4| 22.5| 300| 176
101504| 2.5 – 3.4| 33| 450| 118
101506| 3.5 – 4.4| 44| 600| 88
101508| 4.5 – 5.4| 55| 750| 71
101510| 5.5 – 6.9| 66| 900| 59
101512| 7.0 – 8.9| 86| 1200| 44
101515| 9.0 – 10.9| 110| 1500| 35
101518| 11.0 – 12.9| 132| 1800| 29
101521| 13.0 – 14.9| 154| 2100| 25
101524| 15.0 – 18.0| 176| 2400| 22
Thickness| 3.5mm
---|---
Max Temperature| 28°C *
Protection Rating| IP68
Warranty| Lifetime on cable
Conductor Type| Single Ended
Cold Tail Length| 5m

* Regulated by a floor sensing thermostat
Actual tested resistance may differ from those listed. Allow a tolerance of -5% to +10% of the resistance specified.

Manufacturers Test Log

To the installer:
Fix manufacturer test results label from on the heating cable here.
Staple multiples.

Contact Us

Thermogroup
PO Box 822 19 Ridley Ave Leeton NSW 2705
1300 989 464 • sales@thermogroup.com.au
www.thermogroup.com.au
E &EO © Thermogroup 2022
Contact Us: 1300 989 464 sales@thermogroup.com.au
www.thermogroup.com.au

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>