Raychem T2Blue - 20 W/m
Floor Heating Cable
Description
[12 Year Total Care Warranty]
Raychem T2Blue 20 W/m is a floor heating cable with constant power output of 20 W/m. It is a pre-terminated, dual conductor heater with a 2.5 m cold lead attached at one end. The heating cable should be embedded in screed (typically 50 mm).
T2Blue is the ideal floor heating system for installation in newly constructed buildings or renovation. This floor heating cable is typically applied in new construction applications and building extensions, for example in conservatories or cold rooms (refrigeration rooms).
The T2Blue range exists in a variant without thermostat and in an EcoDesign compliant variant containing a programmable electronic timer thermostat. The T2Blue comes in a handy installer friendly box containing glue sticks for easy fixing to the subfloor and a conduit in which to install the sensor.
An image shows a person installing a floor heating cable. The cable is being laid out on a tiled subfloor, with a portion embedded in screed. Another part of the cable is shown with its cold lead connection.
Advantages
The design phase
- One cold lead connection due to dual wire cable design.
- Different outputs per m² can be obtained by different heating cable spacing (min spacing is 50 mm).
- Flexibility to adapt to all room shapes.
Compatible with all non-combustible and stable subfloors, e.g., concrete, anhydrite, plaster, ceramic underfloor. Following floorings can be applied: Tiles, Marble, Stones with max. 30 mm thickness and min. thermal conductivity of 1.0 W/(mK).
The installation phase
Due to the dual conductor cable, T2Blue has only one cold lead connection, which enables easy lay-out and installation. Easy to adapt to special room shapes or obstacles. Spacing can be varied to a minimum of 50 mm.
The application
- Extra low energy consumption when used together with the Raychem smart thermostats.
- No measurable electro-magnetic fields due to the dual conductor heating cable.
- Long life and maintenance-free.
Technical Data
- Nominal power
- 20 W/m
- Voltage
- 230 Vac
- Max. Exposure Temperature
- +90°C
- Min. Installation Temperature
- +5°C
- Length of cold lead cable
- 2.5 m
- Dimensions
- Approx 5.5 mm diameter
- Min. cable spacing
- 50 mm
- Min. bending radius
- 30 mm
- RCD
- 30 mA
- Construction
- PVC-free
- Certificates
- SEMKO, VDE, CE-mark
Design Table
T2Blue 20 W/m products are available in heating cable lengths from 11 m till 115 m.
Product | Output (W) | Length (m) | Heating cable resistance range @ 20°C | Area (m²) | |||
---|---|---|---|---|---|---|---|
80 W/m² | 100 W/m² | 125 W/m² | 150 W/m² | ||||
T2Blue-20-11 m | 205 | 11 | 246.6 - 285.6 Ω | 2.6 | 2.0 | 1.6 | 1.4 |
T2Blue-20-14 m | 285 | 14 | 176.9 - 204.8 Ω | 3.6 | 2.9 | 2.3 | 1.9 |
T2Blue-20-18 m | 355 | 18 | 145.4 - 168.3 Ω | 4.4 | 3.6 | 2.8 | 2.4 |
T2Blue-20-21 m | 435 | 21 | 115.7 - 134.0 Ω | 5.4 | 4.4 | 3.5 | 2.9 |
T2Blue-20-28 m | 575 | 28 | 87.8 - 101.6 Ω | 7.2 | 5.8 | 4.6 | 3.8 |
T2Blue-20-35 m | 720 | 35 | 69.8 - 80.9 Ω | 9.0 | 7.2 | 5.8 | 4.8 |
T2Blue-20-43 m | 845 | 43 | 59.6 - 69.1 Ω | 10.6 | 8.5 | 6.8 | 5.6 |
T2Blue-20-50 m | 980 | 50 | 51.3 - 59.4 Ω | 12.3 | 9.8 | 7.8 | 6.5 |
T2Blue-20-57 m | 1130 | 57 | 44.4 - 51.4 Ω | 14.1 | 11.3 | 9.0 | 7.5 |
T2Blue-20-63 m | 1270 | 63 | 39.5 - 45.7 Ω | 15.9 | 12.7 | 10.2 | 8.5 |
T2Blue-20-71 m | 1435 | 71 | 35.1 - 40.6 Ω | 17.9 | 14.4 | 11.5 | 9.6 |
T2Blue-20-86 m | 1710 | 86 | 29.4 - 34.1 Ω | 21.4 | 17.1 | 13.7 | 11.4 |
T2Blue-20-101 m | 2015 | 101 | 24.9 - 28.9 Ω | 25.2 | 20.2 | 16.1 | 13.4 |
T2Blue-20-115 m | 2300 | 115 | 21.9 - 25.3 Ω | 28.8 | 23.0 | 18.4 | 15.3 |
Cable spacing (mm) = x = [area (m²) / length (m)] x 1000
Cable spacing values for reference: 250 mm, 200 mm, 160 mm, 135 mm
Underfloor Preparation and Installation Instruction
The subfloor should be clean, stable and rigid, without cracks or adhesion-reducing substances. Cracks are to be filled.
Ensure subfloor is level. When using cement plaster and anhydrite plaster, ensure that the floor has dried sufficiently according to the applicable norms. Anhydrite plaster should be smoothened and dust-free. With quickly solidifying plaster, please follow the manufacturer's instructions.
The heating cable should not be installed under bath tubs, shower cabins, surface covering furniture, etc.
The heating cable should not be installed where holes will be drilled in the floor.
T2Blue heating cable needs to be installed in a screed (typically 50 mm). It should not be installed directly in the tile adhesive. The heating cable should not be embedded in EPS cement screed.
A cross-section diagram illustrates the layers of an underfloor heating installation. From bottom to top, it shows: Insulated subflooring (concrete, wood), a layer of filler, the T2Blue heating cable, tile adhesive, and finally, tiles. Metal mesh is also depicted, likely for support or installation aid.
Applicable norms, rules, and data sheets, as well as instructions and manuals, are to be followed! For detailed installation instructions, reference is INST279.
Contact Information
Europe, Middle East, Africa, India
Tel: +32 16 213 511
Fax: +32 16 213 604
Email: info@chemelex.com
Website: chemelex.com
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