Warmup DCM-C-2, DCM-C-9, DCM-C-7, DCM-C-14, DCM-C-4 Installation Instructions

Warmup DCM-PRO

Installation Manual

Electric

Heating System

Technical Helpline

0345 345 2288

1

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2

Contents

Quick Install Guide �� 4

Components Required for Installation �� 6

Do’s & Don’ts �� 7

Step 1 - Electrical Supply �� 8

Step 2 - Subfloor Considerations �� 10

Step 3 - Lay DCM-PRO Mat �� 12

Step 4 - Layout Planning �� 14

Step 5 - Install DCM-PRO Cable ��16

Waterproofing �� 18

Step 6 - Select Floor Covering �� 20

Step 7 - Lay the Floor Covering �� 21

Step 8 - Connect the Thermostat �� 23

Troubleshooting �� 24

Performance Troubleshooting �� 26

How to test the heater & floor sensor �� 28

Layout Plan �� 29

Control Card �� 30

Warranty �� 32

Technical Specifications �� 34

WARNING

Your Warmup® Underfloor heating system has been designed so that

installation is quick and straight forward, but as with all electrical

systems, certain procedures must be strictly followed. Please

ensure that you have the correct heater(s) for the area you wish

to heat. Warmup plc, the manufacturer of the Warmup® DCM-PRO

System, accepts no liability, expressed or implied, for any loss or

consequential damage suered as a result of installations which in

any way contravene the instructions that follow.

It is important that before, during and aer installation that all

requirements are met and understood. If the instructions are

followed, you should have no problems. If you require help at any

stage, please contact our helpline.

You may also find a copy of this manual, wiring instructions and other

helpful information on our website:

www.warmup.co.uk

3

Quick Install Guide

Quick Install Guide - Please also read the full instructions

that follow this page�

1

• Make electrical provision for

the heater (30mA RCD, 35 mm deep electrical back boxes, trunking).

3

• We recommend installing

Warmup insulation boards for optimum performance.

• Install perimeter strip around

the perimeter of the room to allow for dierential movement between finished floor level and walls.

2

• Ensure the subfloor is smooth,

dry and free from dust.

4

• The surface the mat is being

applied to must be SBR primed (1:4) and smooth, such that a clean and continuous bond can be made.

• Cut mat to size, peel o

backing and tack in place pressing down once aligned.

• Lay additional sheets as above

ensuring that the castellations are aligned.

5

• Test the resistance of the

heater ensuring it is within the range set out in the Reference Resistance Band Tables.

4

6

• Install the heating cable at the

chosen spacing, minimum

60 mm.

• Maintain a perimeter spacing

of half the chosen cable spacing.

Quick Install Guide

7

• Channel a groove in the mat

and subfloor for the coldtail & termination joints, enabling them to fit flush with the top of the mat. DO NOT tape over these joints!

• Install the floor sensor

centrally between two runs of the heater.

9

• Lay the tiles or levelling

compound over the system.

• The heater, including its

joints, must be wholly within the adhesive or levelling compound and not exposed.

• Use flexible grout when

grouting.

8

• Test the resistance of the

heating cable aer installation and check against the previous value to ensure no damage has occurred.

10

• Test the resistance of the

heating cable aer tiling and check against previous values to ensure no damage has occurred.

11

• Connect your Warmup

thermostat.

5

Components Required for Installation

Components available from Warmup

DCM-PRO Mat

DCM-PRO Perimeter Strip

Warmup Insulation Boards

Additional components needed as part of your Warmup heating installation:

30mA Residual Current Device (RCD), required as part of all installations.

Digital Multi-meter required for testing the resistance of the heater and floor sensor.

DCM-PRO Cable

DCM-PRO Waterproofing Tape

Warmup Thermostat & Floor Sensor

Electrical tape to secure the floor sensor.

Electrical housing, back boxes and junction boxes.

Electrical trunking/conduit for housing the power leads.

SBR based primer.

Flexible tile adhesive & grout.

6

Do’s & Don’ts

DO

Ensure that the control card at the back of the manual is completed and fixed at the consumer unit along with any plans and electrical test records as per the current edition of BS7671�

Ensure that adhesives or levelling compounds used are compatible with underfloor heating and suitable for application with non porous underlayments such as the DCM-PRO mat�

Ensure the termination and coldtail joint are within a full bed of adhesive or levelling compound directly beneath the heated floor finish�

Ensure the heat output of the floor meets your requirements�

Ensure that the minimum free bending radius of the heater is not less than 25 mm�

Ensure the subfloor is fully cured and stable before commencing installation of the heater�

Install the floor sensor centrally between two parallel runs of heating cable and away from other heat sources such as hot water pipes�

Ensure all furniture installed over the underfloor heating has feet, creating a minimum 50 mm ventilated space beneath it to allow heat flow into the room�

Ensure that during the course of the installation no damage is caused to the heater by falling or sharp objects�

DON’T

Cut, shorten the heating element at any time or cross the cable over another run, over coldtails or the floor sensor�

Leave surplus heater rolled up under units or fixtures, use the correct size heater�

Connect two heaters in series, only connect heaters in parallel�

Attempt a DIY repair if you damage the heater, contact Warmup for assistance�

Tape over manufactured joints or the floor sensor tip�

Install items above the heating system which has a resistance of more than 1�5 tog, as this may cause overheating�

Store the mat in direct sunlight� Prolonged exposure to UV radiation will alter the properties of the adhesive backing, voiding the product warranty�

7

Step 1 -

Electrical Supply

13 amp fused

spur or RCD spur

supplying power to

the thermostat

Warmup

Thermostat

Floor Sensor 300 mm into

Coldtail & Termination

Joint recessed into the mat & subfloor.

Coldtail connected to

the thermostat

Install the RCD

Install a dedicated 30mA RCD or use an existing RCD. No more than

7.5 kW of heating may be connected to each 30 milliamp RCD. For

larger loads, use multiple RCD’s.

heated area. Floor sensor

connected to thermostat

NOTE: It is possible to run the heater(s) from an existing circuit protected by a 30 mA RCD. It should be calculated whether or not the circuit can handle the additional load.

NOTE: A junction box is required if more than two heaters are being installed

NOTE: When conducting an insulation resistance test on the supply to the thermostat the thermostat and heaters must be isolated or disconnected.

8

Step 1 -

ZONE 0

ZONE 2

ZONE 1

ZON

E 2

Z O N E

2

Z O

N E 2

ZO

N

E 0

Z

O

N

E

1

2.2

5

m

2.

2

5

m

0

.6

m

0

.6

m

0

.6

m

0

.

6m

0.

6

m

0. 6m

0

.

6m

Electrical Supply

Zone Chart

NOTE: In the case of bathroom installations, electrical regulations prohibit the installation of Mains Voltage products such as thermostats, contactors, fused spurs, isolators or junction boxes, within Zones 0 or 1.

Any mains voltage product fitted within Zone 2 must have a degree of protection at least of IPX4 or IPX5 if water jets are present.

It is common to install the thermostat outside of wet rooms in the adjacent connected room in circumstances where it is not practicable to install the thermostat within the wet room.

When installed in this way, using only the floor probe to control the heating, it is not possible to directly control the air temperature, only the floor surface temperature.

All electrical connections must conform to the current BS 7671 Wiring Regulations. Final connections to the main electricity supply MUST be completed by a Part P qualified electrician.

9

Step 2 -

Suboor Considerations

Subfloor Preparation

Subfloors previously covered in vinyl, cork or carpeting: all old flooring and adhesive must be removed. If there is bitumen as a damp proofing layer, it must be covered with a minimum 50 mm of sand/cement screed or overboarded with 10 mm Warmup Insulation Boards, taking care not to puncture the bitumen coating. The screed must be fully cured and dry before proceeding. If using other damp proofing or tanking systems, contact the manufacturer for advice.

Concrete Subfloors

1

2

5

7

3

6

CONCRETE SUBFLOOR

(Recommended)

1 Floor Finish 2 Minimum 6 mm tile

4

adhesive or 10 mm

levelling compound*

3 Warmup DCM-PRO Cable 4 Warmup DCM-PRO Mat 5 Warmup Insulation

Board**

6 Flexible Tile Adhesive 7 Subfloor

1

2

5

6

3

4

CONCRETE SUBFLOOR

1 Floor Finish 2 Minimum 6 mm tile

adhesive or 10 mm

levelling compound*

3 Warmup DCM-PRO Cable 4 Warmup DCM-PRO Mat 5 SBR Primer 6 Subfloor**

For optimum performance it is recommended that you use Warmup® Insulation Boards beneath Warmup DCM-PRO. The insulation will improve the systems response to heating demand, saving energy and reducing running costs.

Where expansion joints are present in the subfloor, these must be preserved up through all covering layers, including insulation where installed and DCM-PRO.

* 6 mm minimum thinset or 10 mm levelling compound layer is measured from the top of the DCM-PRO mat. The levelling compound, when used, must be applied as a single layer. Additional layers of levelling compound must not be added.

** A 3 mm layer of levelling compound is required over coarse and/or loose floors. The surface the mat is being applied to must be primed and smooth such that a clean and continuous bond can be made.

10

Step 2 -

Suboor Considerations

In addition to the general subfloor preparation instructions on the previous page, timber subfloors should be prepared for tiling in accordance with local tiling standards such as BS5385-3, ANSI A108 Series.

Timber Subfloors

1

2

5

9

3

7

6

8

TIMBER SUBFLOOR

(Recommended)

1 Floor Finish

4

2 Minimum 6 mm tile

adhesive or 10 mm

levelling compound*

3 Warmup DCM-PRO Cable 4 Warmup DCM-PRO Mat 5 Warmup Insulation

Board**

6 Flexible Tile Adhesive 7 Floor Deck 8 Joists 9 Insulation

1

2

5

8

3

6

7

TIMBER SUBFLOOR

1 Floor Finish

4

2 Minimum 6 mm tile

adhesive or 10 mm

levelling compound*

3 Warmup DCM-PRO Cable 4 Warmup DCM-PRO Mat 5 SBR Primer 6 Floor Deck** 7 Joists 8 Insulation

* 6 mm minimum thinset or 10 mm levelling compound layer is measured from the top of the DCM-PRO mat. The levelling compound, when used, must be applied as a single layer. Additional layers of levelling compound must not be added.

** A 3 mm layer of levelling compound is required over coarse and/or loose floors. The surface the mat is being applied to must be primed and smooth such that a clean and continuous bond can be made.

11

Step 3 - Lay DCM-PRO Mat

1

• Ensure the subfloor is dry

and smooth, such that the DCM-PRO mats adhesive will make full contact. If necessary an appropriate smoothing or levelling compound should be applied.

3

• Recommended Step - Install

Warmup® Insulation Board over the subfloor referring to their installation instructions.

Warmup insulation boards

are made of extruded polystyrene, faced on both sides with a fibreglass mesh embedded into a thin cement polymer mortar. They will help reduce the heat up times of your system for optimal performance.

2

• Prime timber or sand and

cement screeded subfloors with a dilute (1:4) SBR solution. For proprietary subfloors refer to the manufacturers instructions.

4

• Install perimeter expansion

strips within the DCM-PRO system, along any perimeter or sectional expansion joints within the subfloor to preserve their function. Remove the tape from the perimeter strip to expose the adhesive back and begin pressing it into the wall, ensuring the strip also touches the floor.

Installing the perimeter

strip allows for dierential movement between the finished floor level and walls.

IMPORTANT: When installing the DCM-PRO mat the surface the mat is being applied to must be primed and smooth, such that a clean and continuous bond can be made. If necessary an appropriate 3 mm levelling compound should be applied. Coarse and/or loose subfloor surfaces will prevent the mat from forming a continuous bond. For example; cement coated insulation boards with a raised pattern must have a levelling compound applied over.

12

Step 3 - Lay DCM-PRO Mat

5

• Measure and cut a length of

mat to suit your room using a utility knife and/or scissors.

7

• Repeat steps 5 & 6 for

subsequent runs of the mat, butting the mats together tightly until the floor area is covered, making sure to align the castellations between mat runs.

• Protect the mat with walking

boards in areas of high foot traic and under heavy loads.

6

• Position the mat and remove

the backing from one edge/ corner and stick in position before removing the rest of the backing.

8

• Mark out the floor with a

permanent marker showing where fixtures and other unheated areas are going to be.

13

Step 4 -

Layout Planning

A plan of the cable layout is required as part of the

control card so that any cutting or drilling aer tiling

will not result in injury or damage to the heater.

Before you begin

• Ensure that there is a

minimum of 60 mm between parallel heating cables and they are away from the influence of other heat sources, such as heating and hot water pipes, lighting fixtures or chimneys at all times.

• The heating cable must not

be cut, shortened, extended or le in a void, it must be fully installed within the layer of tile adhesive or levelling compound.

NOTE: The heater should not be installed on irregular surfaces such as stairs or up walls.

The standard specific heating load of the DCM-PRO system is 150 W/m. By adjusting the cable spacing, the installation can be customised to suit both the floor coverage and heat load requirements.

• When installing the cable

DO NOT cross the cable over another run, over coldtails or the floor sensor. This will cause overheating and will damage the cable.

• Heating cables cannot be

installed across expansion joints within the floor. Where a heated floor is divided by expansion joints, individual cables should be used to heat each area. The cold tail may cross the expansion joint within a 300 mm long conduit if necessary.

When installing the cable, maintain a spacing of half its cable to cable spacing, between itself and the perimeter or any unheated areas.

14

Step 4 -

Standard room

Room with recesses

Bathroom

Kitchen

Layout Planning

Heated area at dierent spacings, m²

PRODUCT

CODE

DCM-C-1 0�7 0�8 1�0 1�2 1�3

DCM-C-1�5 1�0 1�3 1�5 1�8 2�0

DCM-C-2 1�3 1�7 2�0 2�3 2�7

DCM-C-2�5 1�7 2�1 2�5 2�9 3�3

DCM-C-3 2�0 2�5 3�0 3�5 4�0

DCM-C-3�5 2�3 2�9 3�5 4�1 4�7

DCM-C-4 2�7 3�3 4�0 4�7 5�3

DCM-C-4�5 3�0 3�8 4�5 5�3 6�0

DCM-C-5 3�3 4�2 5�0 5�8 6�7

DCM-C-6 4�0 5�0 6�0 7�0 8�0

DCM-C-7 4�7 5�8 7�0 8�2 9�3

DCM-C-8 5�3 6�7 8�0 9�3 10�7

DCM-C-9 6�0 7�5 9�0 10�5 12�0

DCM-C-10 6�7 8�3 10�0 11�7 13�3

DCM-C-12 8�0 10�0 12�0 14�0 16�0

DCM-C-14 9�3 11�7 14�0 16�3 18�7

DCM-C-16 10�7 13�3 16�0 18�7 21�3

60mm 60/90mm 90mm 90/120mm 120mm

225

W/m²

~180

W/m²

150

W/m²

~130

W/m²

112.5 W/m²

Example installation diagrams

15

Step 5 -

Install DCM-PRO Cable

1

• Measure and record the

resistance of the heating cable in the “Resistance Before” column of the control card, supplied as part of this installation guide.

• Stop installation immediately

and contact Warmup if its resistance falls outside the range set out in the Reference Resistance Band table.

3 4

2

• Place the coldtail on the floor.

Cut a section in the mat for the manufactured joint so that it sits at the same height as the heater.

• Secure the cold tail using

tabs of electrical tape as necessary. DO NOT tape over the manufactured joint or heating cable. These must be fully embedded within the tile adhesive or levelling compound being laid over.

• Begin laying the heating

cable, pressing it between the castellations.

• Follow the installation layout

created in Step 4 to complete the cable placement.

• DO NOT install the heating

cable in temperatures less than -10 °C.

• Install the cable as shown,

following the circular pattern within the castellations.

16

• The DCM-PRO cable has a

marker at its midpoint. When you reach it, review your progress up to that point and check that you are correctly spacing the cable, ensuring that you will have covered the whole of the heated area when you reach the end of the cable.

• DO NOT install the cable by

bending it around the points of the castellations.

Step 5 -

Install DCM-PRO Cable

5

• At the end of the heating

cable, you will find a termination joint. As with the manufactured joint at the beginning of the heating cable, this joint will have to be cut into the mat so that it sits at the same height as the heater.

• DO NOT tape over the

termination joint, it must be in direct contact and fully embedded within the tile adhesive or levelling compound being laid over the heating cable.

7 8

6

• Install the floor sensor at least

150 mm into the heated area it will be controlling. It should be located centrally between parallel runs of heating cable and not in an area influenced by other heat sources.

• If the heating cable is installed

at multiple spacings, then the sensor should be installed centrally between the narrowest parallel run.

• Measure the resistance of

the floor sensor and record it in the control card. If it’s resistance is outside the prescribed range contact Warmup.

• DO NOT tape over the floor

sensor tip it must be in full contact with the heated tile adhesive or levelling compound.

• Measure the resistance of the

heating cable and verify it is still in line with the Resistance Before reading previously taken.

• Stop installation immediately

and contact Warmup if its resistance has changed significantly or if it falls outside the range set out in the Reference Resistance Band table.

17

Waterproong

There are instances where waterproofing will be required, such as in wetrooms, where there will be significant exposure to water.

If using a proprietary waterproofing system, a levelling compound should first be laid over the Warmup DCM-PRO system to provide a finished surface to install over. Follow the steps below when using the Warmup DCM-PRO waterproofing products to waterproof the installation:

1

• Cut the perimeter strip to the

same level as the DCM-PRO mat.

3

• Cut a length of Warmup tape

to suit and press into the levelling compound using a trowel, removing any air gaps or creases.

2

• Apply a suitable waterproof

adhesive to the mat, walls and penetrations through the mat 100 mm either side of the joint, ensuring there are no gaps or voids.

4

• Reapply the removed portion

of the perimeter strip over the top of the Warmup tape flush with the floor.

18

Waterproong

5

• To waterproof the joints

between mat runs and over the cable joints, apply a layer of waterproof adhesive, 100 mm either side of the joint, making sure the cavities of the mat are fully filled.

NOTE: Where joints are required, overlap the tape by 100 mm bonding the two lengths together with a layer of adhesive.

NOTE: At the manufactured joint, the termination joint or anywhere that you have damaged or pierced the mat, cover the penetration with adhesive and cover with Warmup tape.

6

• Cut a length of Warmup tape

to suit and press into the levelling compound using a trowel, removing any air gaps or creases.

19

Step 6 -

01

_

Subfloor

02

_

6 mm Minimum Flexible Tile Adhesive

03

_

Warmup Insulation boards*

04

_

DCM-PRO Mat

05

_

DCM-PRO Cable

06

_

6 mm Minimum Flexible Tile Adhesive

07

_

Floor finish. Ceramic Tile

01

_

Subfloor

02

_

6 mm Minimum Flexible Tile Adhesive

03

_

Warmup Insulation Boards*

04

_

DCM-PRO Mat

05

_

DCM-PRO Cable

07

_

Flexible Tile Adhesive

06

_

10 mm Minimum Levelling Compound**

08

_

Floor finish. Ceramic Tile

01

_

Subfloor*

03

_

DCM-PRO Mat

04

_

DCM-PRO Cable

05

_

6 mm Minimum Flexible Tile Adhesive

06

_

Floor finish. Ceramic Tile

02

_

SBR Primer (1:4)

Select Floor Covering

Before installing any floor finish, adhesive or levelling compound over DCM-PRO, the installation requirements of each must be checked to ensure compatibility with underfloor heating and plastic decoupling membranes.

Where used, levelling compounds must be suitable for single pour installation depths of at least 10 mm to 15 mm, measured from the top and bottom of the castellations respectively.

Tiled Floor Finish - With Warmup Insulation Boards

Tiled Floor Finish - Without Warmup Insulation Boards

All Floor Finishes - With Levelling Compound and Warmup Insulation

Boards

* When installing the DCM-PRO mat, the surface the mat is being applied to must be

primed and smooth such that a clean and continuous bond can be made. If necessary an appropriate 3 mm levelling compound should be applied. Coarse and/or loose subfloor surfaces will prevent the mat from forming a continuous bond. For example; cement coated insulation boards with a raised pattern must have a levelling compound applied over.

**This method can be used to create a floor surface suitable for most floor finishes and when

forming a drainage slope within a wetroom. The levelling compound, when used, must be applied as a single layer. Additional layers of levelling compound must not be added.

20

Step 7 -

Lay Floor Covering

Underfloor heating performs the most eiciently with conductive, low resistance floor finishes such as stone and tiles. The maximum thermal resistance of the floor should not exceed 0.15 [mK/W].

Tiled Floors

1

• Cover the installation with a

full bed of flexible tile adhesive using a notched trowel. Take care not to damage or dislodge the heating cable. If using tiles smaller than 90 mm cover the installation with a levelling compound first.

3

• Aer laying the first tile

remove and ensure the tile is getting a full coverage of adhesive from your application.

• Ensure the width of the

grout line is in line with the manufacturers instructions for the size and type of tile being used. Tiles must not be removed once the adhesive has set, doing so will damage the heater.

2

• Carefully lay the tiles and press

into the adhesive bed.

4

• Grout the floor as soon as

possible as per the ceramic tile adhesive manufacturer’s instructions. DO NOT switch on the heater until the tile adhesive and grout has fully cured. DO NOT use the heater to accelerate the drying process of the adhesive or levelling compound.

NOTE: If using tiles smaller than 90 mm you MUST cover the installation with levelling compound first.

NOTE: Please ensure that the tile adhesive used is compatible with underfloor heating and suitable for application onto non porous materials such as the DCM-PRO Mat.

21

Step 7 -

Lay Floor Covering

Other Floor Coverings

1

If you are planning to install wood, carpet or vinyl over the heater lay a minimum 10 mm levelling compound over the heater. You must ensure that all heating cables are completely covered. It is important that the levelling compound is suitable for use with underfloor heating.

Final Steps

1 2

NOTE: Before installing the

floor finish its suitability for use with underfloor heating and its maximum operating temperature should be checked against required operating conditions.

When the tiles or levelling compound has been installed, conduct another resistance test to ensure the sensor and heater have not been damaged and record in the control card.

22

The perimeter strip should be cut flush with the tiles or levelling compound using a utility knife once complete.

Step 8 -

SENSOR (NO POLARITY)

4IE-01-OB -01

IP33

T50

Connect the Thermostat

Install the thermostat in accordance with its installation instructions

Instructions for fitting Warmup® Thermostats can be found inside the thermostat box. The thermostat should be connected to the main electrical supply via a fuse, circuit breaker or ‘double pole isolator in accordance with the wiring regulations.

The heater power cable consists of conductors coloured brown (live), blue (neutral) and earth braid. If you are installing more than one heater a junction box will be required. These should be connected in accordance with current wiring regulations by a qualified Part P electrician.

Typical Warmup Thermostat Wiring Diagram

1 2

3

THERMOSTAT WIRING

1 Power Supply Cable 230 V AC

Wired via 30 mA RCD spur supplying power to thermostat

2 Heaters (16 amp 3,680 W max.)

Over 16 amps a contactor will have to be installed

3 Floor Sensor (No Polarity)

23

Troubleshooting

HEATING ISSUE 1 - The floor does not heat up

Instructions which are shaded grey must completed by a qualified electrician

END USER ELECTRICIAN

With the

thermostat

in manual

mode set the

temperature

to 28°C. Is the

thermostat

indicating that

it is sending

power?

YES

Depending on the base allow allocated time

and assess. Does

the system heat

up aer 1 or 2

hours?

YES

Possible

programming

issue. Refer to

the thermostat

troubleshooting

guide in your

thermostat

manual

Can you hear

the relay click

NO

on when the

thermostat

is calling for

heat?

NO

Measure the

output voltage.

Is there 230V

on the load

side when the

stat calls for

power?

YES

Conduct a resistance

& insulation

resistance test. Do

the figures match

the control card

and/or reference

resistance bands?

YES

Are the

connections

on the back of

the thermostat

made in line

with the

wiring diagram?

NO

Rewire as per

the wiring

diagram

NO

Thermostat

may need to be

replaced

Engineer Service

Call required.

Please contact

Warmup for more

24

information

NO

YES

Is there an earth fault

between

live/earth or

neutral earth?

NO

Please see

Performance

Toubleshooting

Guides

Troubleshooting

HEATING ISSUE 2 - The heater trips the RCD

Instructions which are shaded grey must completed by a qualified electrician

ELECTRICIAN

Are the connections on the back

of the thermostat made in line

with the wiring diagram?

NOYES

Conduct a resistance &

insulation resistance test.

Do the figures match the

control card and/or reference

resistance bands?

Engineer Service

Call required.

Please contact

Warmup for more

information

YES

YESNO

Is there an earth

fault between live/

earth or neutral

earth?

Rewire as per the

wiring diagram

NO

Test RCD

25

Performance Troubleshooting

My floor is getting too hot

My floor does not get up to temperature

1. The floor temperature settings on the thermostat may be incorrect.

Check the thermostat settings ensuring that it

is controlling the floor surface temperature and that the set target and limiting temperatures are correct.

2. The floor sensor may be poorly positioned, if so the thermostat will be displaying a floor temperature that is not indicative of the floor surface temperature.

Recalibrate the floor sensor in the thermostat

settings.

3. The thermostat may be set in regulator mode with the duty cycle set too high.

If the thermostat cannot be set to reference a

floor sensor, reduce the regulation value to its minimum selectable value. With the heating active, incrementally increase the setting at an hourly interval until the required floor surface temperature is achieved.

1. Underfloor Heating is normally designed

to heat floors to up to 9°C above the design room air temperature, which is typically 29°C. Delicate floor finishes, such as vinyl and some timbers, may be limited to 27°C. Our hand and foot temperature is normally similar to this, at around 29 - 32°C, so the heated floor will feel slightly cooler than touching your own hands together.

If you wish to raise the floor temperature, such that

it feels warm, it is permissible to set it up to 15°C higher than the design room air temperature. The higher heat output of the floor may overheat the room, making it uncomfortable. The manufacturer of the floor finish should be consulted to ensure compatibility with the chosen temperature before making any changes to the thermostat settings.

2. Refer to points 1, 2 & 3 in the “My floor is

getting too hot” above, as each issue can also be the cause of under heating a floor.

3. If the thermostat is controlling the heating

using the air temperature, with a floor temperature limit then the floor may be turned o before it reaches its limit.

This is normal as the thermostat is preventing the

room air temperature from becoming overheated.

26

Performance Troubleshooting

My floor does not get up to temperature

4. The heating system may be uninsulated. If the heater has not been installed over a layer of Warmup Insulation Boards, it will be actively heating the subfloor as well as the floor finish. The warm up period of the floor will therefore be slower as the system is heating a much greater mass. It could take several hours if it is installed directly on a thick layer of uninsulated concrete.

If your thermostat has an optimised start feature,

ensure it is enabled so that the thermostat can compensate for the mass of the floor. If your thermostat does not have an optimised start feature, measure the time taken for the floor to warm up and adjust the heating start time to compensate.

5. The heat output of the installed system may not be suicient. The system will require a power output of approximately 10W/m² for every degree warmer you require the floor to be than the air. This is in addition to any heat loss downwards through the subfloor.

If the room air temperature is also lower than

desired, supplementary heating may be required to overcome the room heat losses.

If access is available to the underside of the

subfloor, installing insulation within the floor will reduce the amount of heat lost through the floor.

6. Floor coverings such as carpets, underlays and timber are thermally resistive and will reduce the achievable floor surface temperature. They may also require the floor sensor to be recalibrated.

Floor finish combinations with a thermal

resistance of more than 0.15m²K/W or 1.5 tog are not recommended and we recommend that you look to fit a less resistive floor finish. Floor finish combinations with a thermal resistance of more than 0.25m²K/W or 2.5 tog are not permitted.

I am getting patchy heat across my floor

1. If the subfloor varies across the floor, the

amount of heat absorbed by it and lost through it will aect the floor surface temperatures dierently above each case.

2. If the floor covering over the underfloor

heating changes, each floor finishes characteristics will aect the warm up period and the achievable surface temperature.

3. Hot water pipes under the floor could cause

parts of the floor to seem warmer than others.

4. Irregularly spaced cables will cause the floor

to be warmer above the closer cables and cooler where the cables are spaced further apart.

27

How to test the heater & oor sensor

The heaters and floor sensors must be tested before they are laid, once they have been laid but before the tiles or levelling compound has been laid and again before they are connected to the thermostat� The resistance (ohms) of each heater should be measured� You should carry out the following tests and should expect the results detailed below:

• Heating Cable Resistance Test

Set a multimeter or ohmmeter to record resistance in the range of 0-500Ω�Measure the resistance across the live (brown) and neutral (blue) wires� Ensure the measured resistance is within the Reference Resistance Band for the cable size being tested�

Record the readings on the control card in line with the installation procedure�

• Earth Fault Check

Set a multimeter or ohmmeter to record resistance in the range of 1MΩ or greater if available� Measure the resistance across the live (brown) and neutral (blue) wires to the earth braid wire�

Ensure the measured resistance is showing as greater than 500MΩ or infinite if the meter cannot read this high�

Insulation resistance test

Set an insulation resistance tester to 500VDC� Measure the resistance across the live (brown) and neutral (blue) wires to the earth braid wire� Ensure the measured resistance is showing greater than 500MΩ to indicate a pass�

NOTE: Due to the high resistance of the heating element, it may not be possible to get a continuity reading from the heating cable and as such, continuity testers are not recommended� When checking resistance, make sure your hands do not touch the meter’s probes as the measurement will include your internal body resistance and render the measurement inaccurate� If you do not get the expected results or at any time you believe there may be a problem, please contact Warmup’s Technical Team for guidance�

Floor Sensor

Ensure that the floor sensor is tested before the final floor finish has been laid� The floor sensor values can be found in the thermostat instructions� When testing the floor sensor ensure that the meter can read up to 20kΩ� Warmup thermostats use a 10kΩ floor sensor @ 25°C� For temperatures between 20°C and 30°C the resistance of the floor sensor should measure between 8kΩ and 12kΩ�

28

Layout Plan

NOTE: Draw a plan showing the layout and location of the heating cable(s)

29

Control Card

Heater Location

.............................

............................

Total Wattage

................................

Radiant Floor Heating Systems - Risk of electric shock

Electric-wiring and heating panels

contained within the floor. DO NOT

penetrate with nails, screws, or similar

devices. DO NOT restrict the thermal

WARNING

emission of the heated floor.

ATTENTION:

DO NOT cut or shorten the heating element�

Ensure that the entire heating element(s) including the joints

are installed within the layer of tile adhesive or levelling

compound� DO NOT tape over the joints or heating cable as this

may insulate them, causing them to fail� The heating element

must be used in conjunction with a 30mA RCD�

Heater

Model

Resistance

Before

Resistance

Aer

Insulation

Resistance

(Pass)

Floor sensor

resistance

Date Signed Company stamp/name

This form must be completed as part of the Warmup Guarantee.

Ensure that the values are as per the instruction manual.

This card along with a plan showing the heater layout must be

situated close to the consumer unit in a visible place.

Warmup Plc 702 & 704 Tudor Estate Abbey Road

London NW10 7UW

T: 0345 345 2288 F: 0345 345 2299 www.warmup.co.uk

30

Notes

______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________ ______________________________________

31

Warranty

Warmup® Underfloor Heating is guaranteed by Warmup

plc (“Warmup”) to be free from defects in materials and workmanship under normal use and maintenance, and is guaranteed to remain so subject to the limitations and conditions described below� The DCM-PRO Cable is guaranteed for the LIFETIME of the floor covering under which it is fitted when installed in combination with the DCM-PRO Mat, except as provided below (and your attention is drawn to the exclusions listed at the end of this guarantee)� If installed separately DCM-PRO Cable is guaranteed for 10 Years� The DCM-PRO Mat is guaranteed for 5 Years�

This Lifetime guarantee applies:

1. Only if the unit is registered with Warmup within 30 days aer purchase�

Registration can be completed online at www�warmup�co�uk� In the event of a claim, proof of purchase is required, so keep your invoice and receipt

- such invoice and receipt should state the exact model that has been purchased;

&

2. Only if the heater has been earthed and protected by a Residual Current

Device (RCD) at all times�

All Warmup warranties are voided if the floor covering over the Warmup

heater(s) is damaged, lied, replaced, repaired or covered with subsequent layers of flooring� The warranty period begins on the date of purchase� During the period of the guarantee Warmup will arrange for the heater to be repaired or (at its discretion) have parts replaced free of charge or issue a refund for the product only� The cost of the repair or replacement is your only remedy under this guarantee which does not aect your statutory rights�

Such cost does not extend to any cost other than direct cost of repair

or replacement by Warmup and does not extend to costs of relaying, replacing or repairing any floor covering or floor� If the heater fails due to damage caused during installation or tiling, this guarantee does not apply� It is therefore important to check that the heater is working (as specified in the installation manual) prior to tiling�

WARMUP PLC SHALL IN NO EVENT BE LIABLE FOR INCIDENTAL OR

CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO EXTRA UTILITY EXPENSES OR DAMAGES TO PROPERTY�

WARMUP PLC is not responsible for:

1. Damage or repairs required as a consequence of faulty installation or application�

2. Damage as a result of floods, fires, winds, lightening, accidents, corrosive atmosphere or other conditions beyond the control of Warmup plc�

3. Use of components or accessories not compatible with this unit�

4. Products installed outside the United Kingdom�

5. Normal maintenance as described in the installation and operating

manual, such as cleaning thermostat�

6. Parts not supplied or designated by Warmup�

7. Damage or repairs required as a result of any improper use, maintenance,

operation or servicing�

8. Failure to start due to interruption and/or inadequate electrical service�

9. Any damage caused by frozen or broken water pipes in the event of

equipment failure�

10. Changes in the appearance of the product that does not aect its performance�

32

Warranty

SafetyNet™ Installation Guidelines: If you make a mistake and damage the new heater before laying the floor covering, return the damaged heater to Warmup within in 30 days along with your original dated sales receipt� WARMUP WILL REPLACE ANY PRE-TILED HEATER (MAXIMUM 1 HEATER) WITH ANOTHER HEATER OF THE SAME MAKE AND MODEL - FREE�

Register your Warmup® warranty online at

www.warmup.co.uk

(i) Repaired heaters carry a 5 year warranty only� Under no circumstances

is Warmup responsible for the repair or replacement of any tiles / floor covering which may be removed or damaged in order to aect the repair�

(ii) The SafetyNet™ Installation Guarantee does not cover any other type of

damage, misuse or improper installation due to improper adhesive or subfloor conditions� Limit of one free replacement heater per customer or installer�

(iii) Damage to the heater that occurs aer tiling, such as liing a damaged

tile once it has set, or subfloor movement causing floor damage, is not covered by the SafetyNet™ Guarantee�

33

Technical Specifications

TECHNICAL SPECIFICATIONS - DCM-PRO MAT

THICKNESS 5�5 mm

COMPOSITION POLYPROPYLENE MEMBRANE WITH

COLOUR RED

SPACING 60 mm, 90 mm & 120 mm

TECHNICAL SPECIFICATIONS - DCM-PRO CABLE

OPERATING VOLTAGE 230 V AC: 50 Hz

IP RATING IPX7

COLOUR BLUE

THICKNESS 4�5 mm (+/- 0�2 mm)

OUTPUT RATING 150 W/m²

INNER INSULATION ETFE

OUTER INSULATION PVC

MIN� TEMPERATURE INSTALLATION

CONNECTION 3 m LONG “COLDTAIL” CONNECTION

SELF-ADHESIVE BACKING

(3 CASTELLATIONS - 90 mm)

-10 °C

DCM-PRO-ADDITIONAL COMPONENTS

PRODUCT CODE

DCM-E-25 PERIMETER STRIP 25 m - 30 mm 10 mm

DCM-T-50

DCM-R-I

DCM-R-E

PRODUCT

DESCRIPTION

WATERPROOFING

TAPE

INTERNAL

CORNER

EXTERNAL

CORNER

LENGTH

(Varies)

WIDTH

(mm)

HEIGHT

(mm)

50 m - 120 mm 1 mm

120 mm 120 mm 60 mm 1 mm

34

THICKNESS

(mm)

Technical Specifications

Cable size guide

DCM-PRO CABLE

PRODUCT CODE

HEATED

AREA (m²)

POWER

(W)

LOAD

(A)

RESISTANCE

(Ω)

DCM-C-1 1 150 0.7 352.7

DCM-C-1�5 1.5 225 1.0 235.1

DCM-C-2 2 300 1.3 176.3

DCM-C-2�5 2.5 375 1.6 141.1

DCM-C-3 3 450 2.0 117.6

DCM-C-3�5 3.5 525 2.3 100.8

DCM-C-4 4 600 2.6 88.2

DCM-C-4�5 4.5 675 2.9 78.4

DCM-C-5 5 750 3.3 70.5

DCM-C-6 6 900 3.9 58.8

DCM-C-7 7 1050 4.6 50.4

DCM-C-8 8 1200 5.2 44.1

DCM-C-9 9 1350 5.9 39.2

DCM-C-10 10 1500 6.5 35.3

DCM-C-12 12 1800 7.8 29.4

DCM-C-14 14 2100 9.1 25.2

DCM-C-16 16 2400 10.4 22.0

REFERENCE

RESISTANCE

BANDS

(Ω)

335.0 - 370.3

223.3 - 246.9

167.5 - 185.1

134.1 - 148.2

111.7 - 123.5

95.8 - 105.8

83.8 - 92.6

74.5 - 82.3

67.0 - 74.0

55.9 - 61.7

48.0 - 52.9

42.0 - 46.3

37.2 - 41.2

33.5 - 37.1

27.9 - 30.9

23.9 - 26.5

20.9 - 23.1

NOTE: Warmup thermostats use a 10k floor sensor. The expected resistance is: 10k at 25°C,

12.1k at 20°C,

14.7k at 15°C.

35

Warmup plc

United Kingdom

702 & 704 Tudor Estate

Abbey Road, London

NW10 7UW

Web: www�warmup�co�uk

Email: uk@warmup�com

Tel: 0345 345 2288

Fax: 0345 345 2299

The WARMUP word and associated logos are trade marks�

5265707� E & OE�

36

Electric

Heating System

Warmup - IM - DCM PRO - v1�4 2019-07-23

www.warmup.co.uk

Warmup DCM-C-2, DCM-C-9, DCM-C-7, DCM-C-14, DCM-C-4 Installation Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual