Electric Radiant Floor Heating - butech · Electric Radiant Floor Heating E.R.F.H. The Electric...

Installation Guide

Electric Radiant Floor HeatingE.R.F.H.

The Electric Radiant Floor Heating (ERFH) from butech, is a heating system that which allows a more effective heat distribution throughout the entire surface, thus obtaining a combination of maximum comfort with maximum energy efficiency.

The Electric Radiant Floor Heating (ERFH) system is made up of self-adhesive meshes that allow for an easy installation, and an advanced thermostat that fully optimizes energy consumption.

Characteristics of the ERFHOptimization of space

The use of space is essential. If we also want to provide the setting we live in with a certain look, we cannot use elements that obstruct it. With this system, the heating is concealed between the flooring and the substrate. Since the system is concealed under the floor, it does not interfere with the look of the setting, and it allows for an optimum use of the space.

Intelligence and efficient consumption

With the sophisticated controller, energy consumption is fully optimized. This is achieved because it takes into account all possible thermal variables. With the sophisticated thermostat controller, ener-gy consumption is fully optimized. This is achieved because it takes into account all possible thermal variables and to the more than 300 weekly programs that allow it to work at the temperature we wish, adapting to the environment and the circumstances at each moment.

Comfort and well-being

Heating with conventional radiator systems creates air currents that can become uncomfortable. However, the Electric Radiant Floor Heating (ERFH) system is installed throughout the flooring, distributing the heat over the entire surface. This system generates a rising heat flow that ensures that it is evenly distributed, producing comfortable indoor climatic conditions and keeping air currents to a minimum.

System componentsThe Electric Radiant Floor Heating (ERFH) system is made up of two references that are supplied separately:

- ERFH mesh (available in meshes from 1 to 10 m2.) It includes:

• Heating mesh

• Control card (included with each mesh)

• Flexible sensor tubing (for installing the sensor)

• Installation instructions

ERHF thermostat. It includes:

• Thermostat

• Floor gauge

• User's manual

In addition to these materials, it shall be necessary to use the materials described on page 3.

Electric Radiant Floor Heating

Before starting, check the package contents.

Before installing, read the instructions carefully and make sure you have the right tools and materials. The electrical installation must be entrusted to a qualified electrician as per all current electrical installa-tion and construction regulations.

Please note that our website www.butech.es offers more information regarding this system.

General InformationButech’s Electric Radiant Floor Heating (ERFH) is made up by one 12 Watt heating cable per meter, evenly distri-buted and connected to a fiberglass network, with a distance between loops of approximately 8 cm. The grounding of butech’s Electric Radiant Floor Heating (ERFH) is full thanks to its aluminum armor plating, and it therefore fully complies with EN rules and regulations.

The heating mesh has a 5 mm thickness and needs to be integrated into a flexible adhesive material or filling mortar that is suitable for floor heating. Check the manufacturers’ technical specifications.

In general, it shall be adhered at a distance of 10 to 20 cm from the wall. Butech’s Electric Radiant Floor Heating (ERFH) shall never be installed under fixed objects such as wall furniture, kitchen cabinets, bathtubs, or showers, and shall be able to should give off its heat without encountering obstacles.

Please verify in advance if the heating mesh has the appropriate size for the floor surface that must be heated, especially that it is not too large because we need to install it on the available free floor space. Make sure the available electrical capacity (AMPS) is adequate. The mesh may not be installed over expansion joints.

Before installing the mesh, it is necessary to read the resistance and record it on the control card provi-ded with the product. The reading should be done during installation and once it is completed. These readings shall keep correspondence with the technical information and the factory measurements. Perform both measurements between the resistance wires and between the resistance wire and the ground wire. Keep the control card that is supplied with the meshes.

Butech’s Electric Radiant Floor Heating (ERFH) has a 3.5-meter-long (double wire) connection cable with air-tight connection at the end of the mesh; this connection cannot break. The length of the connection cable cannot be shorter than 2.5 meters; at least 1 meter of connection cable shall always be free. The power supply shall never be activated during installation.

The heating cable connected to the fiber network cannot be cut. Meshes cannot be overlapped and the heating cables must never cross! The cable connection is the transition from the resistance cable (heating section of the mesh) to the power cable (cold connection); It is inside the heating mesh and is marked with a red and blue clamping flange.

If multiple meshes are installed in one same space, they shall be connected in parallel, and it is necessary to incorporate a suitably rated junction box so that one single cable connects to the thermostat. The maximum thermostat rating is 16 amps. If it is necessary to install higher voltages, we shall need to install a contactor. Only a qualified electrician may install the thermostat.

In order for the temperature register to be optimal, the sensor shall be installed in the central part of the cable loop. Ensure that the sensor is installed at an adequate distance (at least 50 cm) from the radiator (concealed) and water pipes, drain pipes, and electrical wiring. The sensor must always be inside its tubing. Place the cap on the end of the sensor tubing. When it is necessary to change the sensor, it can be easily removed.

All installations must be grounded with a circuit breaker or a residual current device with sufficient cutting capacity. All installations in wet areas must be connected in series with the thermostat via an exclusive residual current device. All connections must be carried out by an authorized electrician in accordance with IEE regulations.

Installing the Electric Radiant Floor Heating (ERFH) systemRequired materials- One Electric Radiant Floor Heating ERFH system.

- Self-leveling mortar level 1/level 3 for preparing the surface, and C2 S1 type cement-based adhesive for gluing tiles.

- Flexible power cord (16 mm).

- Back electrical cabinet (50 mm).

- Grounded power connection.

- One multi-meter for testing the mesh after each installation work.

- Miscellaneous tools.

Preparation workDecide on the location for installing the thermostat and install a back electrical cabinet with a minimum depth of 50 mm, preferably at a height of 1.40 m to facilitate its operation. Cut the necessary channels and mount the junction box and power tubing. It is necessary to install two tubes: one for the sensor and another one for the power cord of the mesh. Do not route the power cable and the sensor cable through the same tube. Cut a slot in the floor for the sensor tube (2 cm deep.)

Warning: Never install the sensor near a radiator’s (concealed) pipe! Never install it so that it passes under a heating cable!

Decide how the mesh shall be installed. Unroll the mesh with the heating cable facing up. The adhesive back will allow for bonding it on the substrate. The fiberglass mesh can cut between the cable loops and be folded. Avoid damaging the cable! There are many possible installation variants. The possibility of cutting the fiberglass mesh gives flexibility to arrange the cables as desired. Be sure to always keep the same distance from the cable to prevent temperature differences inside the floor structure.

When extending the mesh in larger areas, keep a distance of 10-20 cm from the wall. This recommen-dation does not apply in the case of glass walls that require additional heating. If the Electric Radiant Floor Heating (ERFH) is too long, the mesh can be cut and installed around the outer edge. With the loose wires, we can form loops at least 4 cm from each other. They cannot cross or touch each other.

Resistance readings:Before installing the Electric Radiant Floor Heating (ERFH), we shall take a reading of the resistance and register it on the control card supplied with the heating mesh. The reading shall be done during installation and once it is completed.

These readings shall keep correspondence with the technical information. Perform both measurements between the resistance wires and between the resistance wire and the ground wire. Keep this control card in a visible place in the meter cabinet! This is part of your warranty.


Installing the gaugeOnce we have all the material prepared and the surface cleared and clean, we shall proceed in the following way:

1. Preparing the surface for installing the box where the thermostat and channel through which the gauge will go will be installed.

2. Installing the gauge and the thermostat wiring.

3. Leave the electrical wires ready for installing the thermostat.

4. It is possible to cut the fiberglass mesh, giving flexibility to arrange the cables as desired. Be sure to always keep the same distance from the cable to prevent temperature differences inside the floor structure.

Butech recommends two system installation methods.

1- Installation method with ceramic adhesive.

2- Installation method with leveling mortar.

Recommendation:

Before installing the mesh, and in order to improve the system insulation, the concept xps panels can be installed.

To do this, the panels must be bonded to the substrate with the C2 S1 type adhesive, leaving the surface completely smooth to then proceed with the selected installation method.

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Installation method with ceramic adhesive.1. Apply a layer of C2 S1 type tile adhesive of the same width as the ERFH mesh and 0.4 - 0.5 cm thick.

2. Extend the mesh over the adhesive with the wire facing down. Gently press the mesh down with a spatula or trowel and spread the tile adhesive that sticks out through the mesh. Next, flatten the layer and let it dry. Measure the resistance of the mesh again.

3. Then apply a second layer of C2 S1 type tile adhesive, trying to avoid the formation of air bubbles, and use a plastic trowel to avoid damage to the Electric Radiant Floor Heating (ERFH).

4. Press the tile with a gentle sliding motion.

It is very important to not exceed the maximum thickness of the adhesive in order to reduce the stresses produced by retraction.

Before installing the second layer of the C2 S1 type adhesive, ensure that the first layer is completely dry.

Take special care when embedding the mesh in the adhesive in order to prevent damage to the wires.

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Installation method with leveling mortar.1. Install the mesh and bond it to the substrate (remember that the mesh is self-adhesive.)

2. Measure the Electric Radiant Floor Heating (ERFH) again with a multi-meter and record the readings in the inspection card. Take the readings both in between the resistance wires and between them and the grounding.

3. Apply the level 1/level 3 leveling mortar according to the installation instructions.

4. Observe the recommended drying time before applying the covering on the substrate. Measure the resistance of the mesh again. Then apply a layer of C2 S1 type tile adhesive, trying to avoid the formation of air bubbles, and use a plastic trowel to avoid damage to the Electric Radiant Floor Heating (ERFH). Lastly, press the tile with a gentle sliding motion.

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Thermostat installation instructionsPlease read this manual carefully before installing. Keep it together with the other warranty forms.

The installation must be carried out by a qualified electrician as per all current electrical installation and construction regulations. Before installing or re-installing the thermostat, always isolate the thermostat power. Check that the power is turned off. Remove the screen by carefully pressing the square hole located at the bottom of the thermostat with a blunt object (for example, the tip of a pen.) The screen and cover frames can be removed.

Wiring diagramThe connection is carried out as follows:

PILOT: Pilot wire (Home automation)

HEATING (N): Heating wire connection (N)

N: Electrical connection (Neutral)

L: Electrical connection (Active)

HEATING (L): Heating wire connection (L)

FLOOR SENSOR: Floor sensor connections

EXTERNAL SENSOR: External sensor connections

For the grounding we recommend carrying out the connection from the thermostat using its terminal.

Therefore, connect the wires according to the described diagram, and place the thermostat in the ready-to-install box (not supplied.) Install the screen frame by pressing gently on it.


Instructions for use of the thermostatOperation of the keysThe thermostat is controlled with three touch sensitive keys located at the bottom of the screen. The basic functions of these keys are:

Up , Confirm ,Down

The icon displayed over the button will take on that function. Fast return: Press "Up" for 2 seconds to quickly return to the home screen.

Explanation of symbols

Mode

Menu

Change temporal or manual temperature. This option only appears over the center button if the temporal or manual mode has been selected.

Comfort period

The automatic program is operating

Temporal temperature

Manual temperature

Timer function

Anti-freeze protection mode

Sensor error: The sensor is defective, has been wired incorrectly, or the wires are loose. The heating system will not work if the sensor has errors. Tip: Check the floor sensor wiring and tighten the terminals. If the connection is correct and it still shows the sensor error, we recommend you get in contact with your provider.


Commissioning menuAfter connecting to the electricity grid for the first time, we will need to wait 5 minutes until the first question appears on the screen. This is due to the loading of the internal backup battery. By pressing the right key we confirm a choice and go to the next screen or option. If we want to change or verify a selection in the start menu, we can press the left key and return to the previous screen or option.

- Language:Select the language. This is the first question on the start menu.

- Preference choice: Clock; Choose the hour display mode: 12 or 24 hour (am/pm)

- Temperature: choose between °C or °F

- Year: programs the current year

- Month: programs the current month

- Number of the day: programs the current day

- Programming time: programs the current time

- Type of heating (floor): Radiant floor heating or other heating systems. If you choose a different heating system, the question will be if the system should operate according to the internal room sensor or external sensor.

- Floor structure (if you chose radiant floor heating): Program the floor thickness of the radiant floor heating installation.

• up to (<) 2 cm

• 2 to 5 cm

• 5 to 10 cm

• more than (>) 10 cm

- Floor covering: Wood or other material. If you choose other material, you will be asked if you have installed a floor sensor (yes or no).

- Selection of the sensor: Room or floor sensor. If you choose radiant floor heating, we recommend contro-lling the floor temperature with a floor sensor.

- Choice of temperature: Program the comfort temperature that you choose for a heating period. The standard temperature is programmed to 23 degrees Celsius for a radiant floor heating system, and 21 degrees Celsius for a different heating system.

- Choice of temperature: Program the temperature reset. In the case of radiant floor heating, it is not neces-sary to program the temperature reset. The thermostat automatically controls the temperature reset.

- Virtual assistance diagram: It contains the heating periods selected in accordance with the standard program.

- Slow start: It is possible to select this option for new floors.The main screen is displayed after the final confirmation. The standard settings are operational and will run automatically.

Menu structureMode: Here you can pause the current thermostat program, changing it (temporarily) to another program. When a mode function is selected, the corresponding symbol is displayed. The "Auto" option activates the standard or customized program.

Automatic: The thermostat will turn on depending on the programmed settings. These can be the stan-dard settings or the customized temporary settings.

Temporary temperature: In order to temporarily ignore the temperature established in the automatic pro-gram. The program will be ignored until the next automatic event.


Manual control: In order to permanently ignore the automatic program.

Power off: Turns the thermostat and the heating system off.

Anti-freeze protection: If the floor temperature falls below 7 degrees Celsius, the system starts to heat up and keeps the temp. above 7 degrees.

Timer: Use this mode when you go on vacation, etc. The thermostat will remain off during the selected period.

Slow start: The thermostat will raise the floor temperature slowly over a 20-day period. After this period, the thermostat starts the standard or customized program automatically.

Menu: Changes the thermostat settings.

Temperature settings: With this function, you can change the programmed temperature.

Program: The comfort temperature and hours can be changed in this menu.

Consumption: The total time on is shown as a percentage (%) over the past 30 and 365 days.

Childproof lock: In order to turn on or off the childproof lock, press and hold pressed for a few seconds. When the childproof lock is active, a padlock is shown on the screen.

Information: Provides information about the thermostat’s current software and hardware versions.

Settings:

- It changes the following settings:

- Date and time

- Language

- Brightness

- Backlight delay

- Color theme

- Standby screen

- Display help

- Temperature unit

Advanced functions: Warning: The settings can have a major influence on the operation of the thermostat! Please check with your provider.

- Heating system

- Calibration

- Intelligence

- Differential

- Pilot wire

- Sensor type

- Factory settings


Programming

Standard Automatic Program

This program includes the following heating periods at a comfort temperature of 23 °C:

- Monday to Sunday

• Period 1: from 06:00 - 09:00 hours

• Period 2: from 15:00 - 22:00 hours

Outside these hours the thermostat automatically switches to energy saving mode.

Customized Automatic Program

1. Select "Menú" on the main screen

2. Select "Program"

3. Press to confirm and select "Customized"

4. Press the "pencil" icon

5. Select the day that you want to configure

6. Select "Configure"

7. Select 1 or 2 heating periods

8. Set the start time of the first heating period

9. Set the end time of the first heating period

10. Set the desired temperature

11. Set the start time of the second heating period

12. Set the end time of the second heating period

13. Set the desired temperature

14. Go back and repeat steps 5 to 14 to program another day, or copy and paste a daily program on a different day

Copy and paste a daily program:

1. Press the "pencil" icon

2. Select the day you want to copy

3. Select “Copy”

5. Select the day on which you want to paste the hours

6. Select "Paste"

7. A screen will appear with the pasted hours.

8. Confirm


General operation informationTemperature display

The temperature shown on the screen is the currently registered temperature (and not the one that is configured as comfort temperature.) Regardless of the thermostat parameters, the floor temperature is measured by the floor sensor and the room temperature is measured by the room thermostat.

This way, we can check if the desired temperature is reached, as specified at the beginning of the comfort period.

Intelligent function

The thermostat has an adaptive intelligent system. This function allows the thermostat to calculate when it must activate in order to reach the required temperature at the established time (so if the established time is 08: 00, the thermostat will activate before so that at 08.00, the established temperature has been reached.) This intelligent function can be deactivated in the menu: Other functions

Economy mode

The thermostat automatically causes a drop in temperature or a night temperature in order to optimize energy consumption.

This function is part of the adaptable setting system and is able to "think." For an under-floor heating sys-tem, it is not necessary to specify the economic temperature for the heating in the Start menu settings. The highest energy consumption is always at the start-up phase of the heating. It is due to the necessary preheating time of the floor mass, which takes a long time. Once the floor is heated, it will be "reheated" sporadically.

Heating new floors

Before turning the heating on, it is necessary to wait for the established drying time to elapse. Usually a drying time of 3-4 weeks must be observed in the case of tile floors. Check with the supplier/manufac-turer about applicable drying time for the product. For sand/cement screeds, the required drying time is generally one week per applied cm, with a minimum of 4-5 weeks.

Floor temperature limiter

The comfort temperature level depends entirely on the wishes of users or the requirements and insu-lation values of the floors or rooms to heat. Normally, we can expect that the heating system, installed as auxiliary heating, and assuming that the normal room temperature is around 21 °C, gets rid of the "cold" from the floor and increases the floor temperature from 3 to 4 °C with respect to a scenario of a non-heated room. Regardless of the type of construction, insulation data, thermostat parameters, and other external factors such as windows, ventilation, and the influences of other heating systems, the basic temperature of a non-heated floor is 16 to 17 °C. From a medical and regulatory point of view, the floor temperature cannot in any case exceed 28° C in order to prevent the development of bacteria and circulation problems in the legs and feet.

Some floors (top layer) may be subject to temperature limits (e.g. wooden floors.) If the user selects the "Wood" option in the thermostat start-up menu (in the section "Floor covering",) the maximum tempera-ture can be limited. The floor temperature is then limited to a value of 28 degrees Celsius. In order to be able to use this function, it is necessary to have a sensor installed in the floor. If you have any questions, do not hesitate to ask your provider about the floor covering or temperature restrictions.


Guarantee:There is a warranty period of 10 years for the heating mesh and 2 years for the thermostat and the sensor.

Technical characteristics of the systemTechnical characteristics of the mesh

Wire type: Single/double conductor with screenVoltage: 230 V ACPower: 150 W/m2

Mesh dimensions: 500 mm x 5 mmConnecting wire: 3.5 m, 5 mm, and screenInsulation conductor: FEP TeflonInsulating sleeve: PVDFMaximum temperature: 90 ºCGuarantee: 10 YearsConnections: Phase Black

Neutral BlueGrounding Screen

Technical characteristics of the thermostat

Voltage: 230 V – 50/60 HzMaximum charge: max. 16 Amp. / 230VTemperature range: +5/+40 ºCSleeve: IP21Standard color: Polar white (RAL 9010) and BlackSensor: It includes integrated and external sensorGuarantee: 2 YearsApprovals: FI / CE / CCA


butech building technology, S.A. Carretera Villarreal - Puebla de Arenoso (cv-20) km 2.5 - 12540 Villarreal - Castellón - Spain.

Apartado de correos: 297 - Telephone (+ 34) 964 53 62 00 - Fax (+ 34) 964 53 00 34 - [email protected] - http://www.butech.es

References

KEA SAP Product description

B62902151 100086601 E.R.F.H. 1 m2 (150W) n mesh

B62902162 100086615 E.R.F.H. 2 m2 (150W) n mesh

B62902158 100086617 E.R.F.H. 3 m2 (150W) n mesh

B62902161 100086619 E.R.F.H. 4 m2 (150W) n mesh

B62902157 100086621 E.R.F.H. 5 m2 (150W) n mesh

B62902154 100086623 E.R.F.H. 6 m2 (150W) n mesh

B62902163 100086625 E.R.F.H. 7 m2 (150W) n mesh

B62902166 100086627 E.R.F.H. 8 m2 (150W) n mesh

B62902135 100073467 E.R.F.H. 10 m2 (150W) n mesh

B62902168 100155713 E.R.F.H. touch-control thermostat


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