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Electric Radiant Floor Heating E.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 ERFH Optimization 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 components The 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:
• 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 Information Butech’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) system Required 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 work Decide 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.
Electric Radiant Floor Heating
Installing the gauge Once 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 d