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Quality Electric Underfloor Heating

Electric Underfloor Heating Installation Manual

Visit our website for videos and expert advice www.comfortzone.co

Don’t forget to register your 10 year warranty online within 60 days of purchase at www.comfortzone.co

10YEARS

Ask for a comparison quote on your next job All prices quoted ex. VAT E&OE ©Comfortzone 2015 2


Contents

! Important safeguards and warnings 2

1 General information 3

1.1 Use of this manual 3

1.2 Safety guidelines 3

1.3 Remember to measure resistance 3

1.4 10 year limited warranty 3

2 Underfloor heating system overview 4

2.1 Underfloor heating specifications 4

2.2 Typical installations and applications 5

3 Underfloor heating design & selection 6

3.1 Design the installation 6

3.2 Confirm your product selection 6

4 Underfloor heating installation 8

5 Commissioning the system 12

5.1 Insulation resistance test 12

5.2 Heating cable resistance test 12

5.3 Sensor resistance test 12

6 Troubleshooting 13

7 Warranty terms 14

8 Important information & warnings 15

Important Safeguards and Warnings

WARNING: Shock and fire hazard

If the floor heating system is damaged or not installed properly, fire or shock could occur resulting in serious personal injuries or damage to property.

You must carefully follow the instructions and pay attention to the warnings contained in this manual.

• A Thermogroup UK thermostat must be used.

• It is important that this equipment is installed only by competent persons who are familiar with the proper sizing, installation, construction and operation of the floor heating system and the hazards involved.

• All electrical work must conform to current IEE wiring regulations and be checked or carried out by a qualified electrician. Electrical installation work in residential dwellings is subject to Part P building regulations.

• The installation must comply with all national and local electrical codes. If you are unfamiliar with these requirements, contact a electrician.

• The floor heating system is designed for underfloor heating purposes only. Be sure that the floor heating system is not penetrated by nails, screws, or similar devices that can cause damage on first installation or during subsequent floor repairs in the future.

• If the floor heating system is damaged, it must be replaced. Do not attempt to splice or repair any part of the system without contacting Thermogroup UK for technical guidance and approved repair kits.

• The floor temperature sensor must be installed away from other temperature influences such as hot water pipes and large glazed elevations.

• Safety warnings are identified as ! WARNING throughout this document.

!

3Ask for a comparison quote on your next job All prices quoted ex. VAT E&OE ©Comfortzone 2015


1.1 Use of the manual

This manual describes the Thermonet CZ (Comfortzone) floor heating system, how to design the layout, select the right product, and install the system.

It is important to thoroughly review this manual and the relevant thermostat installation manual before attempting the installation and commissioning of your heating system.

For additional information regarding any aspect of the underfloor heating system contact:

Thermogroup UKBridge HouseHop Pocket LanePaddock WoodKent TN12 6DQ

Tel: 01622 689 440Fax: 08700 41 21 40

[email protected]

1.3 Remember to measure the resistance

The resistance should be measured between the two conductor cables, brown & blue. Compare this resistance reading to the resistance specified in the relevant table on p7. The value should be within -5% to +10% of the published values. If you get a different reading, contact Thermogroup UK on 01622 689 440.

Also, measure the resistance between the live, neutral and earth wire - the meter should read infinity on this test. If you get a different reading, contact us on 01622 689 440.

Please refer to p12 for instructions on how to properly measure and record the resistance test results.

Important: You must measure, verify and record the actual resistance of the heating cable three times during the installation process, and recorded on p12.

1. Out of the box2. After installation of the underfloor heating mat3. After completion of floor tiles or floor finish

It is recommended that you use a Contract Monitor to monitor the integrity of the underfloor heating cable throughout the installation process.

These monitors can be acquired through Thermogroup UK. Call 01622 689 440 for more information.

1.2 Safety guidelines

The safety and reliability of any floor heating system depends on proper design, installation, and testing. Incorrect installation or mishandling of the product can cause damage to the heating cable, system components and property, and can create a risk of fire or shock. The guidelines and instructions contained in this guide are important. Follow them carefully to minimize the risks and to ensure that the floor heating system performs reliably.

Pay special attention to the following:

• Instructions marked i Important

• Safety warnings identified as ! WARNING

1.4 Ten year limited warranty

For a period of ten (10) years from the date of purchase Thermogroup UK warrants that the heating cable is free from defects in material, design and workmanship.

The extended warranty is only valid if the resistance test certificate has been properly completed, in full, by the installer, the online warranty registration has been completed by the homeowner and Thermogroup UK have issued a Warranty Confirmation in writing. The installation must also be completed in accordance with the installation instructions.

1. General Information

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Cable construction Twin conductor

Rated voltage 230V

Output (W/m) 100, 150 & 200

Cable spacing 112mm, 80mm & 80mm

Cable diameter 3.6mm

Conductor insulation Fluoropolymer

Outer insulation PVC

Max ambient temp 30°C

Max installation temp 5°C

Cold tail lead 2 wires & ground braid (3.0m)

Voltage 230V 50/60Hz

Maximum load 16A (3600W)

Temperature range 5 ~ 40°C

Ambient temperature -5 ~ 50°C

Sensor rating NTC 10KΩ at 25°C

Consumption 5W

Warranty 3 years

IP rating IP20

Dimensions H86 W86 D47 (mm)

Programming None (manual operation)

Underfloor heating mat

2.1 Underfloor heating specifications

Manual thermostat (8250)




Ambient temperature -5 ~ 50°C


Consumption 2W

Warranty 3 years

IP rating IP32


Programming 5 + 1 + 1 (6 event)

Touchscreen thermostat (8259)




Ambient temperature 0 ~ 50°C


Accuracy ±0.5°C

Warranty 3 years

IP rating IP30


Programming 5 + 1 + 1 (6 event)

Colour touchscreen thermostat (5240)

2. Underfloor heating system overview



2.2 Typical installations and applications IMPORTANTi

• Read the instructions carefully before installation.

• Remember to complete the full resistance test procedure and record results on the handover form on p16 of this guide.

• Only for indoor installation. Do not install in walls or ceilings.

• The entire cable and cold tail connection must be embedded in a full bed of flexible tile adhesive, levelling compound or similar material.

• The minimum installation temperature is 5°C.

• The heating cable cannot be cut to length, crossed over itself, or installed at spacing closer than 50mm.

• It is recommended to use copper wire only.

• Remember to check that the supply voltage matches the voltage of the floor heating system.

Please consult Thermogroup UK for any other questions or technical advice.

Thermostat floor sensor should be located within the insulation layer or below the heating mat, directly between 2 runs of heating cable.

Alternative method: Self levelling compound is recommended for large surfaces and the following floor materials:- Engineered wood, laminate, floating floors, vinyl, linoleum and carpet.

Always consult your floor finish manufacturer on special requirements for wood, laminate, floating floors, vinyl or linoleum flooring.

Directly onto a concrete substrate

Concrete SubstrateFlexible Tile Adhesive

Flexible Tile Adhesive

Floor Tiles

Uncoated Insulation

Thermonet CZ Mat

Directly onto a plywood/timber substrate

Timber Substrate

Flexible Tile Adhesive

Floor Tiles

Coated Insulation

Thermonet CZ Mat

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Simply tile directly over Comfortzone using a flexible polymer based tile adhesive

Tiles

Cover Comfortzone with a 10mmlayer of self levelling compound before laying the carpet

Cover Comfortzone with a 10mmlayer of self levelling compound before laying the laminate floor

Carpet / Vinyl

Laminate

Always check with your flooring finish manufacturer before installation to ensure suitability for use with electric underfloor heating systems and for advice on the correct floor build up.



3.1 Design the installation

Step 1: Measure the heated areaDetermine the heated area of the floor where there are no permanent fixtures or furniture such as showers, toilets, vanities, or cabinets. Measure the heated area of the floor.

For example, in Figure 3, the area of the bathroom is 8.75 m2. When you subtract the area of the vanity, shower and toilet, the total heated area is only 6.45 m2.

Step 2: Determine the power supply voltageMake sure the supply voltage is 230 V.

Step 3: Plan the designDetermine the optimum floor heating mat layout for your heated area to ensure coverage. Select a position for the thermostat in the wall above the heated area where it can be reached by the 3.0m cold lead on the mat, and the 3.0m floor temperature sensor. The thermostat can be installed at any height, provided it is within reach of the necessary cables. Please refer to Figure 4.

Important!The predetermined cable spacing must be maintained to ensure proper floor heating. Do not change the heating cable spacing when you lay out the cable or the floor may have cold spots.

Figure 3: Heated area

3.2 Confirm your product selection

Confirm that your chosen underfloor heating mat is no larger than the heated area of your room. Following the example from Figure 3, if the heated area is 6.45m2, you should select the 6.0m2 underfloor heating mat.

It is vitally important to choose the correct size heating mat as the heating cable cannot be cut or shortened to fit the heated area.

100% of the heating cable and cold tail connection must be covered in a full bed of flexible tile adhesive or self levelling compound.

All cold tails must be taken back to a connection point or thermostatic controller.

3. Floor heating design and product selection

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Figure 4: Thermostat height

1m2

1m2 0.3m2

Heated Area = 6.45m22.5m

3.5m



150W/m2 heating mats

STOCK CODE

AREA(M)

SIZE(M)

OUTPUT(w)

RESISTANCE (Ω)

118500 1 2 x 0.5 150 352.7

118503 1.5 3 x 0.5 225 235.1

118506 2 4 x 0.5 300 176.3

118509 2.5 5 x 0.5 375 141.1

118512 3 6 x 0.5 450 117.6

118515 4 8 x 0.5 600 88.2

118518 5 10 x 0.5 750 70.5

118521 6 12 x 0.5 900 58.8

118524 8 16 x 0.5 1200 44.1

118527 10 20 x 0.5 1500 35.3

118530 12 24 x 0.5 1800 29.4

118532 16 32 x 0.5 2400 22.0

118540 20 40 x 0.5 3000 17.6

118548 24 48 x 0.5 3600 14.7200W/m2 heating mats

STOCK CODE

AREA(M)

SIZE(M)

OUTPUT(w)

RESISTANCE (Ω)

118550 1.0 2 x 0.5 200 264.5

118552 1.5 3 x 0.5 300 176.3

118554 2.0 4 x 0.5 400 132.3

118556 2.5 5 x 0.5 500 105.8

118558 3.0 6 x 0.5 600 88.2

118560 4.0 8 x 0.5 800 66.1

118562 5.0 10 x 0.5 1000 52.9

118564 6.0 12 x 0.5 1200 44.1

118566 8.0 16 x 0.5 1600 32.8

118568 10.0 20 x 0.5 2000 26.5

118570 12.0 24 x 0.5 2400 22.0

100W/m2 heating mats

STOCK CODE

AREA(M)

SIZE(M)

OUTPUT(w)

RESISTANCE (Ω)

118450 1.0 2 x 0.5 100 529.0

118453 1.5 3 x 0.5 150 352.7

118456 2.0 4 x 0.5 200 264.5

118459 2.5 5 x 0.5 250 211.6

118462 3.0 6 x 0.5 300 176.3

118465 4.0 8 x 0.5 400 132.3

118468 5.0 10 x 0.5 500 105.8

118471 6.0 12 x 0.5 600 88.2

118474 8.0 16 x 0.5 800 66.1

118477 10.0 20 x 0.5 1000 52.9

118480 12.0 24 x 0.5 1200 44.1

Coated insulation boards

STOCKCODE

THICKNESS(MM)

SIZE(MM)

BOARD AREA(M) QTY

6106 6 1.2 x 0.6 0.72 pk8

6110 10 1.2 x 0.6 0.72 pk6

6112 12 1.2 x 0.6 0.72 pk6

6120 20 1.2 x 0.6 0.72 ea

6130 30 1.2 x 0.6 0.72 ea

6140 40 1.2 x 0.6 0.72 ea

6150 50 1.2 x 0.6 0.72 ea

Uncoated insulation boards

STOCKCODE

THICKNESS(MM)

SIZE(MM)

BOARD AREA(M) QTY

6012 6 1.3 x 0.6 0.78 pk10

6014 10.5 1.3 x 0.6 0.78 pk10

Thermostats

STOCKCODE DESCRIPTION MAX LOAD

(A)

5240 Thermotouch 4.3iC® 16

8259 Programmable Touchscreen 16

8250 Manual Thermostat 16



Important: Tools and materials requiredYou will require the following items to install and test the floor heating system:

• Scissors

• Utility knife

• Wire strippers

• Tape measure

• Screwdriver

• Multimeter

You will also need the appropriate tools and materials to install your chosen floor finish (if you are also the flooring installer). These will likely include products such as self levelling compound, thin set tile adhesive, insulation board or backer board and a notched trowel.

Step 1: Plan layoutSketch a floor plan of the room including all permanent fixtures and furnishings such as toilets, bathtubs, appliances, cabinets, etc. Indicate all dimensions required to determine the available floor area and the position of the thermostat.

Step 2: Transfer layout to the floorDraw an outline of the room layout on the floor including a foot print of all permanent furnishings identified in your plan that are not yet installed.

Unroll the first few feet of the underfloor heating mat. The starting point of the cable must be placed within 3.0m from the thermostat. The cold tail and floor sensor cable can both be extended using suitable extension wire.

Leave a 50mm perimeter around the edge of the room.

Important!Mark the position of the cold tail connection point between the power lead and the heating cable. This connection must be fully concealed in flexible tile adhesive or self levelling compound.

When using a floor temperature sensing thermostat, mark the sensor position between 2 heating cables, about 25cm away from the wall (within the heated area), as close as possible to the thermostat.

Step 3: Install the floor sensorIf using a floor temperature sensing thermostat, install the sensor now, either in conduit tube, or directly to the subfloor. It is recommended that the sensor be installed in conduit tube. This will allow the sensor to be easily replaced in the unlikely event of failure.

The sensor and conduit should be installed between the thermostat wall box and the sensor position.

The conduit tube must be partially countersunk into the subfloor. Cut a channel, wide and deep enough for the conduit, in the floor and wall up to the thermostat for the sensor conduit. The conduit has to go from the thermostat connection box to a minimum of 25cm away from the wall, towards the middle of the floor.

Step 4: Plan the designDetermine the optimum floor heating mat layout for your heated area to ensure even coverage. Select a thermostat position in the wall above the heated area where it can be reached by the 3.0m cold lead on the mat, and the 3.0m floor temperature sensor. Please refer to figure 4 on p6.

Important!The floor temperature sensor must be installed centrally between 2 runs of heating cable, away from other temperature influences such as hot water pipes and large glazed elevations.

Use the cap provided (or duct tape) to close the end of the conduit so that adhesive can’t penetrate the conduit.

The predetermined cable spacing must be maintained to ensure even floor heating. Do not change the heating cable spacing when you lay out the cable or the floor may have cold spots.

Thermogroup UK recommend that the installation is documented with photos at regular intervals to note the location of the cold tail connections and the sensor.

Use duct tape to hold the sensor conduit into the groove to prevent it from floating up when the adhesive or leveller is poured.

If the sensor is installed directly in the adhesive bed, use duct tape to secure it to the subfloor.

4. Underfloor heating installation

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Step 4: Prepare the subfloor surfaceClean and vacuum the floor thoroughly. Take extra care to remove any dust and debris from the floor that may damage the heating cable.

Ensure that the subfloor is secure and stable. Carefully fill in all cracks to prevent any potential damage to the new tiles resulting from shifts in the subfloor.

Insulation boards (optional)On a timber substrate, use cement coated insulation boards and fix to the timber substrate using suitable screws and washers.

Take care to identify any pipes or electric cable before fixing screws into the timber sub floor. Coated boards should be fixed at 300mm centres around the edge of the boards to ensure stability.

On a concrete substrate you should use an uncoated insulation board, adhered to the substrate with a full bed of suitable, flexible tile adhesive.

Step 5: Resistance test AUse a digital ohm meter to measure the resistance of the mat and compare it to the readings in the relevant table on p7. Record the measured resistance on the customer handover form on p16 of this guide.

Documenting the resistance at each stage of installation is required for warranty registration. Also, measure the resistance between the live, neutral and earth wire - the meter should read infinity on this test. Please refer to p12 for instructions on how to measure and record the resistance test results.

Step 6: Begin laying the underfloor heating matComfortzone underfloor heating mats feature an adhesive on the under side which will prevent the mat from moving during installation.

Start by placing the mat such that the connection point and the temperature sensor are in their intended positions and bring the power cable to the thermostat or connection box.

Begin unrolling the mat evenly across the heated floor area that you marked out previously in Step 2. The adhesive on the mat will allow the mat to be moved several times before it loses its adhesion, subject to substrate conditions.

When you reach the wall, cut the mesh, turn the mat, and begin rolling in the desired direction.

!LAY WIRE SIDE DOWN



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Ensure that the underfloor heating mat is in full contact with the subfloor at all times.

Avoid walking on the heating mat. If this is not possible, use shoes with soft soles and keep traffic to a minimum.

When approaching oddly shaped obstacles (toilets, cabinets etc.), carefully cut the mesh into thinner strips that can be manipulated to fit the awkward area. In some cases pieces of the mesh will be cut away entirely. Use hot melt glue or a thin strip of tape to secure the loose cable to the floor.

Step 1Cut mesh

Step 2Fold meshback on itself

Step 3Turn through 90º

90° turn

! DO NOT CUT WIRE

Step 1Cut mesh

Step 2Turn to any angle 1º-180º

Step 3Pull apart to align edges

180° turn

! DO NOT CUT WIRE

!DO NOT CUT WIRE

It is highly recommended to take photographs of the installed underfloor heating mat before installing the final floor finish.

Step 7: Resistance test BPlease refer to Step 5.

Step 8: Install the floor coveringENSURE THAT THE SENSOR CONDUIT HAS BEEN PROPERLY INSTALLED BEFORE PROCEEDING (see Step 3).

If you are installing tiles, proceed with the installation of the tiles by covering the heating cables with a layer of flexible tile adhesive as directed by the tile manufacturer.

To install the tiles, apply a layer of compatible, flexible adhesive using the ridged side of your trowel. Tile and grout the floor using best industry practices, in accordance with the instructions provided by the tile manufacturer.

Ensure that the tile adhesive is compatible with electric underfloor heating and make sure you cover the entire height of the heating cable as the tiles are installed.

Do not use “dot n dab” tiling techniques. The tiles must be adhered with a full bed of adhesive to ensure there are no air gaps that could cause the heating cable to overheat.

If installing a wood, engineered or laminate floor covering, it is recommended that you contact the flooring manufacturer for advice and special requirements such as maximum temperatures and compatible adhesives.

A minimum layer of 10mm of self levelling compound over the heating cable is recommended before installing wood, engineered, laminate, vinyl or carpet floor coverings.

Ensure that all moisture in any self levelling cement has been fully eliminated in accordance with the drying times recommended by the manufacturer (consult the manufacturer for exact drying time).

!

!

DO NOT CUT OR SHORTEN THE HEATING CABLE!!



Step 9: Electrical connectionsAll electrical connections must be carried out by a qualified electrician. The electrician should also connect the floor sensor to the thermostat, take the final resistance reading and record it on the customer handover form, see Step 11.

Important: The underfloor heating system must not be turned on until all tile adhesives, levelling compounds and grouts have dried and fully cured. Consult relevant manufacturer’s guidelines on curing times.

CONSUMER UNIT (RCD)

FUSED SPUR OR 20A SWITCH

THERMOSTAT

FLOOR TEMPERATURE SENSOR WIRE

HEATING MAT CONNECTION

T

Note: You need to mark the appropriate circuit breaker reference label indicating which branch circuit supplies the circuits to the electric underfloor heating cables.

See the relevant thermostat wiring guide for detailed wiring instructions specific to your thermostat.

Step 10: Resistance test CUse a digital ohm meter to measure the resistance of the mat and compare it to the readings in the relevant table on p7. Record the measured resistance on the customer handover form on p16 of this guide.

Documenting the resistance at each stage of installation is required for warranty registration. Also, measure the resistance between the live, neutral and earth wire. Both should read infinity.

Please refer to section 5 of this guide for full instructions on how to measure and record the resistance values.

Step 11: Record resistance test resultsMake sure all resistance testing information has been recorded on the customer handover form on p16. It is the installer’s responsibility to complete this form in full.

It is the responsibility of the home owner to use the information provided by the installer to complete the online warranty registration form at www.comfortzone.co.

When the online warranty form has been completed, Thermogroup UK will check the data and send out a confirmation letter if everything is in order. We may contact you to verify your information.

Important: The homeowner must complete the online warranty form immediately after the heating system has been installed. Failure to register your system could void the manufacturer’s warranty. The warranty is subject to terms and conditions (available on request).

The underfloor heating system must not be turned on until all tile adhesives, levelling compounds and grouts have dried and fully cured. Consult relevant manufacturer’s guidelines on curing times.

Increase the floor temperature gradually and adjust it until it reaches a comfortable level depending on the type of room and your personal preferences.

You must pay attention to maximum floor temperatures recommended by your floor finish manufacturer.

The Comfortzone heating system is now ready to use!

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DO NOT SWITCH ON UNDERFLOOR HEATING!!



Important: You must measure, verify and record the actual resistance of the heating cable three times during the installation process.

1. Out of the box2. After installation of the underfloor heating mat3. After completion of floor tiles or floor finish

All results must be recorded on p12 of this guide and handed to the home owner for warranty registration.

It is recommended that you use a Contract Monitor to monitor the integrity of the underfloor heating cable throughout the installation process.

These monitors can be acquired through Thermogroup UK. Call 01622 689 440 for more information.

5.1 Insulation resistance test

This test ensures that the insulating jackets of the mat are not damaged. A low value indicates the cable has been damaged and must be replaced.

1. Connect the earth wire to the black multimeter lead and both underfloor heating power wires to the red lead of the multimeter.

2. Make sure the meter reads “Open” or “OL.” If you get a different reading, contact us on 01622 689 440.

3. Record these readings on the handover form.

5.2 Heating cable resistance test

This test measures the resistance of the Comfortzone mat and is used to determine circuit integrity.

1. Set your multimeter to the 200 or 2000 ohm range.

2. Connect the multimeter leads to the live and neutral cold lead wires.

3. Compare this resistance reading to the resistance specified in the product selection tables on p7. The value should be within -5% to +10%.If you get a different reading, contact us on 01622 689 440.

4. Record the resistance readings on the handover form on p16 of this guide, and give the document to the home owner. The home owner must then complete the warranty registration form on our website. www.comfortzone.co

5.3 Sensor Resistance Test

This test measures the resistance of the floor sensor and is used to verify the sensor integrity.

1. Set your multimeter to the 200K ohm range.

1. Connect the multimeter leads to the red and green lead wires.

1. Make sure the meter reads between 9-25K ohms. If you get a different reading, contact us on 01622 689 440.

2. Record these readings on the handover form included in the box with every Thermonet CZ underfloor heating mat.

5. Commissioning and testing the system

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SYMPTOM PROBABLE CAUSES CORRECTIVE ACTION

Floor doesn’t heat up No voltage Check circuit breaker

Circuit breaker tripped Ensure that there are not too many mats or other appliances connected on the same circuit. The mat may require a dedicated circuit. See p7.

Ground-fault tripped in the thermostat Refer to thermostat installation and operation manual.

Thermostat not turned on Refer to section 4 of this manual, and the relevant thermostat installation and operation manual.

Cable not connected to thermostat Refer to relevant thermostat installation and operation manual.

Floor temperature sensor not connected

Refer to relevant thermostat installation and operation manual.

Faulty sensor Contact us on 01622 689 440

Floor warm all the time Timer not set correctly Refer to relevant thermostat installation and operation manual.

Floor not warm enough Thermostat not set correctly Refer to relevant thermostat installation and operation manual.

No instructions available Download from www.comfortzone.co

6. Troubleshooting



For a period of ten (10) years from the date of purchase Thermogroup UK warrants that the Thermonet CZ heating cable is free from defects in material, design and workmanship. The extended warranty is only valid if the customer handover form has been properly completed, the online warranty form has been properly completed and the installation is in accordance with the installation instructions.

The defective heating cable has to be inspected by or submitted to Thermogroup UK. Failure to comply with all of the foregoing will void this extended warranty. Thermogroup UK will, when the customer has documented that a defect in the heating cable was present at the date of delivery, repair or supply a new heater at Thermogroup’s discretion. All claims shall be made within the extended warranty period. Thermogroup UK shall not be liable for any claims made later than ten years from date of purchase.

Thermogroup UK shall not be liable for any consequential and secondary costs or damages linked to the defect or replacement of the underfloor heating mat. Thermogroup UK will be liable for any costs related to the dismantling of defective product and the installation of a new product; however such liability is limited to the amount of five (5) times the initial product costs for each damage/case.

THE FOREGOING WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, ON THE PART OF THERMOGROUP UK. THERMOGROUP UK DISCLAIMS ANY WARRANTY, EXPRESS OR IMPLIED, OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THERMOGROUP UK NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON, FIRM OR CORPORATION TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH SALE OR PRODUCT. THERMOGROUP UK SHALL NOT BE HELD RESPONSIBLE FOR DAMAGE TO PERSON OR PROPERTY, CONSEQUENTIAL LOSS, LOSS OF PROFIT, LOSSES ON GOODS IN STORE, OR THE LIKE WHICH MIGHT ARISE OUT OF THE FAILURE OF THE EQUIPMENT DELIVERED, IRRESPECTIVE OF THE CAUSE (INCLUDING FAULTY MANUFACTURE).

How to claim this warranty

Contact the company’s Customer Service department and provide the following information:

1) Nature of the manufacturing defect

2) Date of purchase and, if already installed, date of installation

3) If installed, name and contact details of the electrician and flooring installer

4) Resistance readings taken by installer

5) Proof of purchase and stock number from product label or a completed customer handover form.

Our Customer Service department will advise you on the next steps to complete your warranty claim.

Disclaimer:

This warranty gives you specific legal rights and you may also have some legal rights which may vary from state to state or province to province. Thermogroup UK hereby disclaims, and it is as a condition of the sale, that there are no implied warranties. Some states and provinces do not allow limitations on an implied warranty so the above limitation may not apply to you.

Thermogroup UK can accept no responsibility for possible errors in catalogues, brochures, other printed materials, and website information. Thermogroup UK reserves the right to alter its products without notice. This also applies to products already on order provided that such alteration can be made without subsequent changes being necessary in specifications already agreed upon. All trademarks in this material are property of the respective companies. All rights reserved.

7. Warranty terms



WARNING: The following points must be strictly adhered to. Failure to do so could cause overheating and result in serious fire hazard or electrical shock.

Precautions to be taken to avoid damage during installation, such as dropping sharp objects or stepping on the heating unit, or careless pouring of concrete.

The floor temperature sensor must be installed away from other temperature influences such as hot water pipes and large glazed elevations.

Only for indoor installation. Do not install in walls or ceilings.

The minimum installation temperature is 5°C.

The minimum radius for bending the heating element is 25mm.

The heating unit is not to be installed on irregular surfaces.

The heating units are to be supplied through a residual current device (RCD) having a rated residual operating current not exceeding 30 mA.

When the heating units have been positioned, they must be covered with an additional layer of material for mechanical protection.

Never power up the heating cable while it is coiled.

Never alter the heating cable in any way. If made shorter, it will overheat. Any attempt to physically alter the heating cable will void the warranty. Once cut, the heating cable cannot be repaired without consulting Thermogroup UK.

Never allow heating cable to touch, cross or overlap itself at any point. This will cause the heating cable to overheat and could result in fire or electrical shock.

Never install heating cable in walls or ceilings.

Combustible material must not be within 13mm of completed installation.

Caution: Do not use in areas subject to high mechanical loads or impact.

All electrical work must conform to current IEE wiring regulations and be checked or carried out by a qualified electrician. Electrical installation work in dwellings is subject to Part P of the building regulations.

All tile adhesives and grout must be suitable for use with underfloor heating. Single part, flexible tile adhesive is recommended - check with the adhesive manufacturer.

Multiple mats can be installed in one room & must be connected in parallel. Underfloor heating mats must never be joined in series.

8. Important information and safety warnings

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www.comfortzone.coVisit our website for helpful “how to” videos, a running costs calculator and technical document downloads

Comfortzone is now TUV certifiedThe TUV Nord mark is a sign of reliability, quality, efficiency and a product you can trust.

Comfortzone electric underfloor heating must be tested and registered online to qualify for the 10 year warranty.

10YEARS



DIRECTFLOORHEATING

Customer Handover Form

Comfortzone electric underfloor heating must be tested and registered online to qualify for the 10 year warrantyYour customer will need to submit resistance data online in order to register their 10 year warranty. Please make sure you complete all of the tests below and fill out the entire form and give a copy to your customer to ensure a smooth handover. Do not post this form. Please complete the warranty registration online - www.comfortzone.co

The Comfortzone heating mat ten year warranty against manufacturer defects is a limited liability warranty. In the event of a problem with your installation contact your Comfortzone stockist. Take photographs of installation at all 3 stages of installation for your records. Terms and conditions apply.

PLEASE DO NOT POST THIS FORM TO US. The homeowner must fill in the warranty application form on www.comfortzone.co

Installer DetailsName:

Email:

Phone:

Part P No:

Address:

Postcode:

Signed:

UFH Purchase Location:

UFH Purchase Date:

You should test each mat/cable 3 times:

Test A before laying the mat.Test B before laying the floor finish.

Test C after completing the floor finish.

Make sure you test conductor to conductor (which will give you a

resistance reading)

And also test conductor to earth (which should read open circuit).

Testing GuidanceCustomer DetailsName:

Email:

Phone:

Address:

Postcode:

Signed:

10YEARS

Room Reference

UFH Stock No.

Thermostat Stock No. Size (m2) Concrete

SubfloorTimber

Subfloor Test A Test B Test C Test A Test B Test C

0 Example 118527 8259 10m2 35.3 35.2 35.3 open open open

1

2

3

4

5

6

Conductor to conductor Conductor to earth

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