Warmup PVC User manual

Installation Manual:
Underfloor
Heating Mat
- type PVC
TECHNICAL HELPLINE
0845 345 2288
IMPORTANT
Read this manual before attempting to
install the heater.
Incorrect installation could damage the
heater and will invalidate your warranty.
Complete and submit your warranty form
online at www.warmup.co.uk
®
®
The world’s best-selling oor heating brand™

2
Contents
Contents
Do’s and don’ts
Selecting the correct heater
What you need for installation
Floor coverings
Safety - electrical considerations
Subfloor preparation
About the mat
Testing the mat
Sizing guide
How you can modify the mat
Installation
Control card
Warranty
3
4
5
6
7
10
Your Warmup Underoor heating mat
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 Undertile Heating 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 after installation that all requirements are
met and understood.
If the instructions are followed, you should have no problems. If you do require
help at any stage, contact our helpline:
0845 345 2288
You may also nd a copy of this manual, wiring instructions and other helpful
information on our website: www.warmup.co.uk
11

Carefully read this instruction manual before commencing
installation. Consult our helpline or a competent professional
if you are unsure how to proceed.
Ensure the system is tested before, during and after
installation.
Plan your mat layout and installation so that any drilling after
tiling (e.g. for sanitary ware) will not damage the wiring.
Maintain a minimum gap of 50mm between wire runs and
from conductive parts such as water pipes.
Check that the mat is working immediately before
commencing tiling.
Take particular care when tiling not to dislodge or dam-
age the heating wire. Ensure that during the course of the
installation that no damage is caused by, for example, falling
objects, sharp objects etc.
Wear gloves to prevent irritation from the fibreglass mesh.
Ensure the end cap and manufactured joint are under a full
bed adhesive or levelling compound and covered with a tile.
Ensure that a heat loss calculation has been carried out and
heating requirements have been met if you are using the
underfloor heating system as a primary source of heating.
Ensure that the heaters are separated from other heat
sources such as luminaires and chimneys.
Ensure that the control card at the back of the manual is
completed and fixed at the main consumer unit along with
any plans and electrical test records. As per the current
BS7671:2008 17th Edition wiring regulations.
Cut or shorten the heating element at any time.
Commence installation on a concrete floor that has not
been fully cured.
Leave surplus matting rolled up under units or fixtures -
USE THE CORRECT SIZE MAT.
Install the mat on irregular surfaces such as stairs or up
walls.
Use staples to secure the the heating element to the
subfloor.
Run the floor sensor wire or power lead over or under the
heating element or close to other heat sources such as hot
water pipes.
Connect two mats in series, only connect mats in parallel.
Commence tiling before testing the mat.
Switch on the installed mat until 8 days after fitting to allow
the tile adhesive to dry completely.
Install the mat in temperatures less than +5°C.
Bend the heating cable under 25mm radius.
Use the heating system to dry out levelling compound or
adhesive.
Tape over the end cap or manufactured joint.
Attempt a DIY repair if you damage the heater. Contact
Warmup on 0845 345 2288. If you accidentally damage a
the heating mat BEFORE tiling,under the Warmup Safetynet
guarantee you may return the damaged heater to Warmup,
who will replace the heater FREE OF CHARGE. See details of
the safety net warranty at the back of the manual.
DO DON’T
Do’s and Don’ts
3
150W/m2- Standard rooms
Ideal for quick installations in regular-shaped rooms, these mats can be laid straight onto Plywood or concrete bases. They can
provide primary heating in well insulated areas and secondary heating in other circumstances. Warmup always recommend
overboarding concrete/wooden bases with insulation boards (10mm standard) to improve performance.
200W/m2- High Heat Loss rooms e.g. conservatory
200W/m² system is best suited for installation in rooms with higher than normal heat-loss or areas e.g. a conservatory where rapid
heat-up is required. The 200W/m2 system is capable of providing primary heating in almost any situation providing the sub-floor
is reasonably *insulated.
*Always ensure that a heat loss calculation has been carried out and heating requirements have been met if you are using the
undertile heating system as a primary source of heating. Warmup always recommend overboarding concrete/wooden bases with
insulation boards (10mm standard) to improve performance.
How to select the correct heater or heater combination
Calculate the area of the floor to be heated. This is the total floor area minus any permanent fixtures.
Length x width = m2
Select the heating mat or combination of mats closest in size to the area you want to heat. See page 7 for the full range of
heater sizes.
Remember
• Heaters cannot overlap
• Heaters must be connected in parallel
• A single thermostat can control loads up to 16 Amps.
Selecting the Correct Heater

4
What you need for installation
Components included in your Warmup PVC kit :
• Warmup PVC Mat
• Installation Manual
Additional components needed as part of your Warmup
heating installation:
• A Warmup® Thermostat with floor sensor.
NOTE: Only Warmup® Thermostats should be used.
• 30mA Residual Current Device (RCD), required as part of
all installations
• Digital Multi-meter required for testing the resistance of
the mat and floor sensor
• Electrical housing, back boxes and junction boxes
(Back box for the thermostat must be at least 35mm
deep)
• Electrical trunking/conduit for housing the power leads
• Duct Tape (to secure the floor sensor and loose wires)
• Scissors for cutting the fibreglass mesh
• Gloves
• Warmup® Insulation Boards
If the Warmup® underfloor heating mat is to be used
as a primary source of heating you will need to ensure
that you have adequate thermal insulation. A heat loss
calculation MUST be carried out to determine whether or
not the heaters will provide enough heat for your room.
Floor Coverings
This installation manual gives instruction for installation of the Warmup underoor heating mat under ceramic, quarry or natural
stone tiles. The maximum thermal resistance of the oor must not exceed 0.15 [m²K / W].
Other Floor Coverings
It is possible to install the heating element under oor nishes such as wood or vinyl by applying a self levelling compound
over the heating mat .You must ensure that all heating cables are completely covered with a minimum of 10mm self levelling
compound. It is important that the levelling compound is suitable for use with underoor heating.
Note: Delicate oor nishes such as wood or vinyl have a maximum oor surface temperature of 27°C. This temperature must
NOT be exceeded.
Please contact Warmup for further advice if you wish to install the underoor heating mat under any oor nishes other than
ceramic, quarry or natural stone tiles.
As with all electrical projects all mains electrical connections must be
undertaken by a certified electrician. All work must conform to current
IEE Wiring Regulations. The Underfloor heating must be controlled via
a floor sensor thermostat at all times.
Installing a Residual Current Device (RCD)
The Heating Mats must be wired via an 30mA RCD. You must install
a dedicated RCD if one is not already present. You may wish to use a
fused spur/RCD. No more than 4.8kW of heating may be connected to
a single 30mA RCD.
NOTE: It is possible to run the heater from an existing circuit. Consult
a certified electrician to determine whether or not the circuit can
handle the load and if it is RCD protected.
Installing Electrical Boxes and Trunking
You will require a deep (35-40mm) back box for the thermostat. If you
are installing more than two heaters, a junction box will be required.
The wiring from the heater to the thermostat should be protected by
conduit or plastic trunking.
Connecting the Thermostat
The thermostat must be connected to the mains electrical supply via
a double pole isolator fused spur or RCD that has a contact separation
in all poles providing full disconnection under over-voltage category
III conditions . The thermostat should be installed within the room to be heated. In most bathroom installations the thermostat
cannot be located within the bathroom itself as the thermostat is IP20 rated and must be located outside of Zone 2. In such
cases the thermostat must be tted to the outside of an internal wall of the bathroom, as close to the under oor installation as
possible. Once the electrical connections have been made and the system has been tested, the electrician must complete the
control card at the back of this installation manual. As per BS7671:2008 this information must be displayed at or near to the
consumer unit.
Safety - electrical considerations
Power supply via
fused spur /RCD.
Warmup
Thermostat
Warmup
heating mat
Floor Sensor
Power Lead
(coldtail)
NOTE:
Always run the power
supply cable and oor
sensor cable in
separate conduit /trunking

5
Subfloor Preparation
1
2
3
4
5
Wooden Subfloors
• Ensure adequate underfloor ventilation
• Existing floorboards need to be securely fixed and if necessary
pre-levelled with a latex/cement self-levelling compound to give a
flush fit for the subsequently applied WBP plywood (18mm) or an
Insulated tile backer board (Warmup® Insulation Boards).
• A rigid base is essential - Fixing WBP plywood or Warmup®
Insulation Board to joists will not provide a suitable floor finish for
accepting tiles.
• Refer to BS5385: Part 3: 1999, clause 14.4 for more information
on sealing the backs and edges of the WBP plywood before fixing.
• The above recommendations apply to floors of small areas as
advised in clause14.4 of BS 5385: Part 3: 1999.
Concrete Subfloors
• Ensure you use an extruded polystyrene building or tile backer
board (Warmup® Insulation Board) if installing your mat onto a
cement-based floor.
• Fixing the board should be as per the manufacturer’s
instructions.
About the mat
1. Concrete/ Timber Subfloor
2. Flexible Adhesive
3. Wamup® Insulation Board
4. Warmup® Underoor Heating Mat
5. Flexible Adhesive & Tile
NOTE:
Warmup thermostats can switch up to 16 amps. If
you are installing more than two heaters you may
require a junction box.
The mat is made up of
The mat is available in 2 different wattages 150W/m2and 200W/m2. Each mat
is designed to produce a specific amount of heat based on its length. For this
reason you must never shorten the mat.
Advanced Fluoropolymer
Insulation
Earth Braid
Multistrand Twin
Conductors
Polyolen
Voltage 230VAC ~ 50Hz
Min bending radius 25mm
Ip rating IPX7
Min Spacing 50mm
Min installation temp 5°C

Testing the mat
Sizing Guide
The heaters must be tested before, during and after tiling. We recommend the use of a digital multi-meter set to a range of 0-2
K ohms for testing. The resistance (ohms) of each mat should be measured. You should carry out the following tests and should
expect the results detailed below:
• Live to neutral should show the Ohms value listed in the table on page 7.
A +/- 5% Ohm reading tolerance is allowed under manufacturing guidelines.
Record the readings on the control card at the back of the manual.
• Live to earth and neutral to earth should show innity.
NOTE: Due to the high resistance of the heating element, it may not be
possible to get a continuity reading from the mat 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 on 0845 345 2288 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 20k ohms.
6
150W/m2200W/m2
Model Size (m2) Wattage Amps Resistance Model Size (m2) Wattage Amps Resistance
PVCM1 1.0 150 0.7 352.7 2PVCM1R 1.0 200 0.9 264.5
PVCM1.5 1.5 225 1.0 235.1 2PVCM1.5R 1.5 300 1.3 176.3
PVCM2 2.0 300 1.3 176.3 2PVCM2R 2.0 400 1.7 132.3
PVCM2.5 2.5 375 1.6 141.1 2PVCM2.5R 2.5 500 2.2 105.8
PVCM3 3.0 450 2.0 117.6 2PVCM3R 3.0 600 2.6 88.2
PVCM3.5 3.5 525 2.3 70.5 2PVCM3.5R 3.5 700 3.0 75.6
PVCM4 4.0 600 2.6 88.2 2PVCM4R 4.0 800 3.5 66.1
PVCM4.5 4.5 675 2.9 78.4 2PVCM4.5R 4.5 900 3.9 58.8
PVCM5 5.0 750 3.3 70.5 2PVCM5R 5.0 1000 4.4 52.9
PVCM6 6.0 900 3.9 58.8 2PVCM6R 6.0 1200 5.2 44.1
PVCM7 7.0 1050 4.6 50.4 2PVCM7R 7.0 1400 6.1 37.8
PVCM8 8.0 1200 5.2 44.1 2PVCM8R 8.0 1600 7.0 33.1
PVCM9 9.0 1350 5.9 39.2 2PVCM9R 9.0 1800 7.8 29.4
PVCM10 10.0 1500 6.5 35.3 2PVCM10R 10.0 2000 8.7 26.5
PVCM12 12.0 1800 7.8 29.4 2PVCM15R 15.0 3000 13.0 17.6
PVCM15 15.0 2250 9.8 23.5

7
How you can modify the mat
In order to fit your mat into a specific area, it may be necessary to cut and turn the mat (examples below).
NEVER cut the heating element. When cutting and flipping the mat take care not to cut or damage the heating cable.
turn
turn flip
flip
cut & remove mat
cut & remove mat
arrange wire
Before installing the mat
Check mat size
Please take a moment to double-check that your plan has the proper room dimensions and that you have the
correct size and proper number of mats. Mats should run backwards and forwards between walls and obstructions
as shown in the examples.
Depending on insulation, air-flow & overall heat-loss within the room, additional heating may be required.
Before Installation Test
Perform the first test following the steps described above to ensure that the mat has not been
damaged during transport. Do not wire to a plug at this stage.
B
A
Note:
When laying two or
more heaters, ensure
the coldtails reach the
thermostat.
Thermostat
T
hermostat
Thermostat Thermostat Thermostat

Installing the mat
Step 1 - Mark the subfloor
Ensure that the subfloor is of the same construction where you intend to
lay the mat to ensure that the heater performs effectively. Warmup always
recommend that insulation boards, such as Warmup® Insulation Boards
(10mm recommended), are used to improve the efficiency of the mats.
Using a permanent marker, mark out areas on the subfloor where units and
fixtures will be fitted. DO NOT install the mat in any of these areas.
Start by laying the mat in the location closest to the thermostat. Mark the
positions and planned route of the power lead cables as well as the floor
sensor.
ALL MANUFACTURED JOINTS NEED TO BE PLACED ON THE FLOOR UNDER A
FULL BED OF ADHESIVE AND TILES.
If you have awkward areas in the room the loose wire can be removed from
the mat to fit these areas. When doing this ensure that you DO NOT let the
heating element cross or touch. Ensure any loose wires are no closer than 50mm
from each other, the wall or from any other wires still attached to the mesh. Loose
wire taken from the mat can be secured to the floor using duct tape.
Step 2 - Test the Heater
Before installing the heating mat perform the same test as described on page 6 to
ensure that the heater has not been damaged during planning.
Step 3 - Cut, turn and affix the mat
When you have marked the positions and planned the route of the mat on
the floor, start laying the mat cutting and turning where the marks have been
made, beginning at the location closest to the thermostat. Be careful and
never cut the heating cable. Affix the mat using the double sided tape on the
mat.
Use duct tape to affix any loose wires which have been removed from the
mat. Once the mat is fitted, ensure that there are no loose sections, paying
close attention to the ends of the mats and any section which has been
turned.
DO NOT TAPE OVER THE MANUFACTURED JOINTS OR FLOOR SENSOR TIP.
If you find that once the heater has been laid you have too much of the mat
left over STOP, contact Warmup immediately on 0845 345 2288. Remember
you must NEVER cut the heating element to fit an area or leave surplus mats
behind units or fixtures.
If you are installing multiple mats in one room they should be connected in
parallel.
Step 4 - After installation test
Perform the same test as in step 2. If at this stage you do not get the expected
reading or you are getting an open circuit contact Warmup on 0845 345 2288.
2
3
8
1
4

Step 5 - Install floor sensor
Place the oor sensor below the breglass mesh. The oor sensor must be installed
centrally between the two runs of heating element and should extend a minimum
of 150mm into the heated area. Secure the sensor to the oor using tape.
NOTE: DO NOT TAPE OVER THE SENSOR TIP.
It is best to avoid placing the floor sensor in areas of heat fluctuations e.g.
near hot water pipes or radiators. It may be necessary to cut a channel in the
floor to ensure that the floor sensor and power supply cable are kept at the
same height as the heating element.
When installing the floor sensor (located in the thermostat box) DO NOT
cross over or under the heating element.
At this stage the floor sensor must also be tested. Check the resistance of
the floor sensor using your multi-meter (20K ohms). You should get a reading of
approximately 9-23K ohms depending on the room temperature.
If you do not get a reading your floor sensor may be damaged. If this is the case call
the Warmup Technical Helpline to request a replacement.
NOTE: The sensor may be extended up to 50m.
Step 6 - Fit Power Leads
Each mat is fitted with a single power lead for connecting the mat to the
thermostat. To ensure the power lead remains at the same level as the
heating element, you may need to cut or chisel a channel in the subfloor.
When doing this take care not to damage the heating element. Secure the
power lead in place using tape but do not tape over the manufactured joint
where the power supply cable meets the heating element.
The power lead will go into the electrical trunking/conduit up to the
thermostat. It is possible to extend the power lead using twin and earth
cable.
Note: Instructions for fitting the Warmup® thermostat are included in the
thermostat box.
Step 7 - Tile & grout the floor
Ensure you use tile adhesives and grouts suitable for use with underfloor
heating systems (they must contain a flexible additive). It is important that
each tile is solidly bedded in adhesive, with no air gaps or voids beneath. (2
Part Flexible Adhesive). Do NOT dot and dab the tiles.
Check with the manufacturers of the adhesive to ensure suitability.
Use a plastic notched trowel to move the adhesive along the element. Use a
piece of cardboard on top of the exposed element to use as a crawl board.
Ensure to test the resistance of the heating mat regularly during tiling to
check the mat hasn’t been damaged during tiling.
If using flexible levelling compound before tiling make sure that the mat is
completely flat, extra tape can be used to secure the edges of the fibre glass
mesh to the floor.
Do not store tiles or heavy objects on the mat while tiling. Wait for 8 days to allow
the adhesive to dry before you switch on the system.
FINALLY TEST THE RESISTANCE OF THE HEATER(S) ONCE TILING IS COMPLETE.
Installation cont’d
5
6
7
9

Heater Location _________________________
Total Wattage __________________________
Place this card in a visible spot close to the consumer unit.
SignedDate Company stamp/name
CAUTION
Radiant Floor Heating Systems
Warming-Risk of electric shock
Electric-wiring and heating panels
contained below the floor. Do not
penetrate with nails, screws, or similar
devices. Do not restrict the thermal
emission of the heated floor.
Attention:
Do not cut or shorten the heating element.
Ensure that the entire heating elements including the joints are installed under the tiles
in the installation.
The Heating element must be used in conjunction with a 30mA RCD.
Heater Model Resistance Before Resistance After Insulation Resistance
Pass Floor sensor resistance
This form must be completed as part of the Warmup Guarantee. Ensure that
the values are as per the instruction manual.
This card must be situated close to the consumer unit in a visible place.
Note: Draw a Plan showing the layout of the heater.
Warmup Plc 702 Tudor Estate Abbey Road London NW10 7UW T: 0845 345 2288 F: 0845 345 2299 www.warmup.co.uk
10

Terms and conditions apply
Models: PVC, PVCM, 2PVCM**R and SSMAT heaters manufactured by Warmup plc -
THE 10 YEAR ELEMENT OF THIS GUARANTEE DOES NOT EXTEND TO THERMOSTATS WHICH
ARE COVERED BY SEPARATE GUARANTEES. THIS GUARANTEE DOES NOT AFFECT YOUR
STATUTORY RIGHTS.
SafetyNetTM 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.
Please note:
(i) Repaired heaters carry a 5 year warranty only. Under no circumstances is Warmup responsible for the repair or replacement of any tiles / oor
covering which may be removed or damaged in order to affect the repair.
(ii) The SafetyNetTM 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 after tiling, such as lifting a damaged tile once it has set, or subfloor movement causing floor damage, is not
covered by the SafetyNetTM Guarantee.
Warmup plc, 702 & 704 Tudor Estate, Abbey Road, London NW10 7UW
T 0845 345 2288 F 0845 345 2299 www.warmup.co.uk
Warmup Underoor Heater 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 UNDERTILE HEATER is guaranteed
for the floor covering under which it is fitted, except as provided below
(and your attention is drawn to the exclusions listed at the end of this
guarantee).
This 10 years guarantee applies:
1. only if the unit is registered with Warmup within 30 days after 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; and
2. only if the heater has been earthed and protected by a Residual Current
Device (RCD) at all times.
Thermostats are guaranteed for a period of 3 YEARS from the date of
purchase, except as provided below. The guarantee for the Warmup 3Ie
thermostat can be upgraded to lifetime. Contact Warmup for details 0845
345 2288.
Neither guarantee continues if the floor covering over the heater(s) is
damaged, lifted, replaced, repaired or covered with subsequent layers of
flooring. The guarantee 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. The
cost of the repair or replacement is your only remedy under this guarantee
which does not affect 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. Normal maintenance as described in the installation and operating
manual, such as cleaning thermostat.
5. Parts not supplied or designated by Warmup.
6. Damage or repairs required as a result of any improper use,
maintenance, operation or servicing.
7. Failure to start due to interruption and/or inadequate electrical service.
8. Any damage caused by frozen or broken water pipes in the event of
equipment failure.
9. Changes in the appearance of the product that does not affect its
performance.
Warranty
11

V2.0 03/15
The WARMUP word and associated logos are trade marks. © Warmup Plc. 2014 – Regd. TM Nos. 1257724, 4409934, 4409926, 5265707. E & OE.
Warmup plc
702 & 704 Tudor Estate
Abbey Road
London
NW10 7UW
Web: www.warmup.co.uk
Email: [email protected]
Tel: [phone]
Fax: [phone]