nVent RAYCHEM Mat User manual

Mat Installation Instructions
Floor Heating Systems

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Pre-Installation ...................................6
Secure nVent RAYCHEM Mat to Suboor ...............7
Install Flooring
Tile and Stone..................................... 9
Laminate and Engineered Wood.................... 10
Insulation & Resistance Testing/Mat Resistance Log ....11
Electrical Connections .............................13
Electrical Guidelines...............................14

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ATTENTION:
Service of this product to be done by nVent authorized personnel only. This product does not require maintenance after
proper installation. This appliance can be used by children aged from 8 years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction
concerning use of the appliance in a safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children
without supervision.
• The installation is to be in accordance with the national wiring rules.The heating product must be supplied through a
RCD with trip rating 30mA maximum.
• This equipment shall be installed only by qualied personnel who are familiar with the construction and operation of
the apparatus and risks involved.
• Caution should be taken to guard against electric shock, re and bodily injury during the installation of
this equipment.
• De-energize power circuits before installation or servicing.
• RAYCHEM Mat should not be connected to power until the RAYCHEM Mat is fully installed and covered by
ooring material.
• Suboor must be prepared in accordance with ANSI specications.
• The heating portion of the RAYCHEM Mat shall not touch, cross over, or overlap itself.
• Do not install RAYCHEM Mat in direct contact with or within 0.256” (6.5 mm) of any combustible surfaces
or materials.
• The minimum bending radius of the power lead is 2” (51 mm) and heating wire is 0.625” (16 mm).
• The ambient air temperature must be above 10°C or 50°F when RAYCHEM Mat is installed.
• RAYCHEM Mat is designed for indoor embedded oor heating applications and in wet areas
• Minimum distance of 1.5” (38.1 mm) between adjacent heating devices.
• Total combined R-values of all oor coverings must not exceed R-1 for 160 W/m2mats.
• RAYCHEM Mat should not be altered.
• RAYCHEM Mat is not for installation in pool and spa areas, nor outdoor use.
* Tile Adhesive must be made of a non-combustible material.

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RAYCHEM Mats
RAYCHEM mats are electric oor heating mats consisting of heating cables embedded within two layers of
polyesterfabric.
Mats are designated UKXXYY-WWW where UK denotes the voltage XXYY is the dimensions in meters and WWW is
the watt density in watts per square meter. e.g UK1509-160 is a 230V mat 1.5 x 0.9 meters in size and 160 w/m2in
watt density.
The following thermostats are approved to be used:
NRG-Temp, NRG-DM, Green Leaf, SENZ and SENZ WiFi.
The means for disconnections must be incorporated in the xed wiring in accordance with the wiring rules.

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PRE-INSTALLATION
1. Assemble required tools
1. Multimeter /ohmmeter
2. 6 mm x 6 mm square
notched trowel
3. Grouting oat /
lightweight roller
4. Sponge
5. Flexible tile adhesive*
6. Tile adhesive* mixer
7. Large bucket
8. Duct tape
9. Thermostat sensor
probe (included with
thermostat)
2. Perform insulation & resistance tests
Refer to page 11 for insulation and resistance
testing procedures.
4. Dry t and route power lead path
Position RAYCHEM Mat to t contours of room. Route a
path for the power lead to the electrical box. The power
lead CANNOT cross over on top of RAYCHEM Mat.
RAYCHEM Standard Mats can be ipped in any direction
to place power leads closer to thermostat location.
3. Clean suboor
For concrete slab suboors, RAYCHEM recommends
insulating the slab prior to installing RAYCHEM Mat.
Insulation will improve the upward heat transfer
from the mat to the ooring surface and improve
heat up time.

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SECURE RAYCHEM MAT TO SUBFLOOR
5. Prepare tile adhesive* mixture
7. Place mat onto tile adhesive*
Place RAYCHEM Mat onto fresh tile adhesive*.
6 mm x 6 mm
6. Spread tile adhesive* onto suboor
Use 6 mm x 6 mm square notched trowel to spread
6mm layer of exible tile adhesive* onto suboor. Work
on one manageable section at a time. For RAYCHEM
Mat installations in showers or wet locations, spread tile
adhesive* onto sloped mortar bed above PVC (polyvinyl)
pan liners.
8. Press mat into tile adhesive*
Press RAYCHEM Mat rmly into tile adhesive* with grout
oat or lightweight roller. Create 100% contact between
RAYCHEM Mat, tile adhesive* and suboor. Press out air
bubbles underneath mat. Route power lead(s) to electrical
box as per step 4.

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9. Perform insulation & resistance tests
Refer to page 11 for insulation and resistance testing procedures.
30 cm
10. Secure oor sensor probe
Refer to page 12 for sensor probe testing procedures.
Duct tape the oor sensor probe on top of RAYCHEM Mat. The probe’s tip should be between the heating wires. Ensure
the probe’s tip is located in an area that can represent the overall oor temperature and away from other heating/cooling
sources (i.e. heat vents, direct sunlight, drafts caused by large windows/doors, areas covered by rugs or xed furniture).
The probe wire CAN cross on top of the heating wire(s).

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INSTALL FLOORING - TILE AND STONE
11. Install tile/stone ooring
FOR LAMINATE/ENGINEERED WOOD INSTALLATIONS
SKIP TO PAGE 10.
Use 6 mm x 6 mm square notched trowel to spread
minimum 6 mm layer of exible tile adhesive* on top of
RAYCHEM Mat. Install tile/stone on top of RAYCHEM Mat
as per manufacturer’s instructions.
13. Perform insulation & resistance tests
Refer to page 11 for insulation and resistance
testing procedures.
12. Clean grout lines
Do not use sharp tools or power tools to clean
grout lines; doing so may damage RAYCHEM Mat.
14. Make electrical connections
Make electrical connections. Refer to page 13
for electrical connection procedures.
Before activating RAYCHEM Mat, ensure setting compound
has fully cured. Refer to setting compound manufacturer’s
specications for cure times. Installation of RAYCHEM Mat
is now complete.

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INSTALL FLOORING - LAMINATE AND ENGINEERED WOOD
6 mm
11.+ Apply smooth layer of tileadhesive*
Use smooth trowel to spread minimum 6 mm layer of
exible tile adhesive* on top of RAYCHEM Mat. Ensure
tile adhesive* layer is level and smooth. Self-leveling
compounds may also be used. Allow tile adhesive*
or self-leveller to cure as per manufacturer’s instructions.
13.+ Install laminate/engineered woodooring
Install laminate/engineered wood oor as per
manufacturer’s instructions.
+ This step is for laminate and engineered wood ooring only.
12.+Perform zinsulation & resistance tests
Refer to page 11 for insulation and resistance testing
procedures.
14.+Make electrical connections
Make electrical connections. Refer to page 13
for electrical connection procedures.
Before activating RAYCHEM Mat, ensure setting compound
has fully cured. Refer to setting compound manufacturers’
specications for cure times. Installation of RAYCHEM Mat is
now complete.

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INSULATION & RESISTANCE TESTING/MAT RESISTANCE LOG
Note: RAYCHEM Mat must be tested before, during and after installation to validate the warranty.
Insulation Test
To ensure the heating wire is fully insulated:
1. With a digital multimeter, set it to measure resistance/ohms. If using an ohmmeter, set it to the 200 ohm setting.
2. Place one multimeter clip on the metal braid wire (ground). Place the other multimeter clip on the blue wire.
3. Conrm the reading on the multimeter/ohmmeter is OL or innity (open circuit).
4. Repeat steps 2-3 to check the reading between the metal braid wire (ground) and the other wire (brown).
If insulation test readings do not pass requirements at any point of the installation, halt installation immediately and
contact 0800 96 90 13 or email [email protected].
Resistance Test
To ensure continuity of the heating wire:
1. With a digital multimeter, set it to measure resistance/ohms. If using an ohmmeter, set it to the 200 ohm setting.
2. Place one multimeter clip on the blue wire. Place the other multimeter clip on the brown wire.
3. Conrm the reading on the multimeter/ohmmeter is within +10% / –5% of the factory resistance reading listed on the
white tag that is attached to the power lead. The white tag contains information including factory resistance readings,
model number, manufacture date and amperage ratings.
4. Record the resistance test readings in the table below.
5. If resistance test readings do not pass requirements at any point of the installation, halt installation immediately
and contact 0800 96 90 13 or email [email protected]. For warranty and troubleshooting purposes, the
resistance table must be completed and remain with the end user.
MAT RESISTANCE LOG
Mat Model Number
Factory Measured Resistance
Resistance Test Ohms Reading (Test #1 - Before Installation)
Resistance Test Ohms Reading (Test #2 - During Installation)
Resistance Test Ohms Reading (Test #3 - Post Installation)

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INSULATION & RESISTANCE TESTING
Testing Floor Sensor Probe Test
To ensure the oor sensor probe is not damaged:
1. With a digital multimeter (or ohmmeter), set the device to the 20KΩ (Kilohms) setting.
Note: Some multimeters do not have the 20KΩ (Kilohms) setting. Find a suitable multimeter that has this setting.
2. Place a multimeter clip on each of the wires. It does not matter which clip is attached to which wire.
3. Conrm the reading on the device is between 8-12KΩ (Kilohms) at room temperature.
4. If test readings do not pass requirements at any point of the installation, halt installation immediately and contact
080096 90 13 or email [email protected].

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ELECTRICAL CONNECTIONS
Electrical Connections
1. Connect the tin plated copper ground braid/wire of the RAYCHEM Mat to the ground screw or ground conductor inside
the electrical box using approved wire connectors.
2. Attach corresponding lead wires to electrical box using CE Certied cable ttings. Make electrical connection only after
ooring is complete.
When controlling multiple mats with one thermostat, all mats may be connected directly to the thermostat provided the
total amperage does not exceed the 13-amp maximum load of the RAYCHEM Thermostat. Alternatively, the mat power
leads can be run to a separate electrical box and connected to the RAYCHEM Thermostat using suitable electrical house
wiring. Consult with your electrician to determine the best method for your installation. In all cases, ensure the electrical box
can easily t all of the connections.
WARNING: Risk of electric shock and re. Damage to supply conductor insulation may occur if conductors are
routed less than 2” (51 mm) from heating wire. Refer to installation instructions for recommended means of routing
supply conductors.
3. Ax supplied orange label to panel board beside appropriate circuit indicating branch circuit supplying power to
RAYCHEM Mat.
4. Ax the supplied “Concealed Area Warning” label to adjacent points of access to concealed areas in which installed
heating products are accessible.
5. Ax the supplied “Radiant Floor Heating” sticker to the room control for the RAYCHEM Floor Heating System.
The installation is to be in accordance with the national wiring rules and IEC 60335-2-96. The heating product must be
supplied through a RCD with trip rating 30mA maximum.
The power leads of RAYCHEM Mat may need to be routed inside suitable conduit according to local electrical codes.
Check with the local authority having jurisdiction to determine requirements.
WARNING: The power lead tag must remain on the power lead. The tag contains critical information necessary for testing,
warranty and troubleshooting purposes. Do not remove the tag for any reason.
Troubleshooting
Should you have any questions or diculties installing or controlling your RAYCHEM Mat contact 0800 96 90 13 or email
[email protected].

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ELECTRICAL GUIDELINES
A. ATTENTION:
Service of this product to be done by nVent authorized personnel only. This product does not require maintenance
after proper installation. This appliance can be used by children aged from 8 years and above and persons with
reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given
supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without
supervision.
B. RAYCHEM mats are electric oor heating mats consisting of heating cables embedded within two layers of
polyester fabric.
C. Mats are designated UKXXYY-WWW where UK denotes the voltage XXYY is the dimensions in meters and WWW is
the watt density in watts per square meter. e.g UK1509-160 is a 230V mat 1.5 x 0.9 meters in size and 160 w/m2in
watt density.
D. This product is rated IPX7.
E. Following thermostats are approved to be used:
NRG-Temp, NRG-DM, Green Leaf, SENZ and SENZ WiFi
F.

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