The ThermoPro Multi is a handheld hot air tool for professional detail work on waterproofing membranes. It is used for corners, protruding parts, and similar areas.

It comes in two models:

• ThermoPro Multi 230 V, article number 294001 (EU)
• ThermoPro Multi 120 V, article number 294047 (US)

The power output is 1,550 W for the 230 V model and 1,600 W for the 120 V model.

Weight and dimensions: The tool weighs 1.3 kg including the cable. Its dimensions are 365 x 105 x 105 mm. The power cable is 3 m long, and the fuse is 10 A.

Materials you can weld: Thermoplastics and modified bitumen, such as sheets, pipes, profiles, membranes, tarpaulins, foils, and floor coverings.

Temperature setting: The instruction manual includes a graph showing heat output.

The ThermoWeld 40 is an automatic membrane welding machine for large, continuous seams on large roofs. The ThermoPro Multi is the handheld tool for quick detail work around the areas that the Thermoweld cannot reach.

You can set the temperature steplessly between 20 and 620 °C (68–1,148 °F).

The airflow is 250 l/min.

The 230 V model uses 230 V and 50 Hz. The 120 V model uses 120 V and 60 Hz.

The noise level is 70 dB.

It has a brushless motor. Therefore, there are no carbon brushes to replace.

The country of origin is Switzerland.

It has protection class II. The tool has an IP20 protection rating.

Lap joints, wire-welded joints, butt joints, and fusion joints.

• Heating thermoplastic semi-finished products for shaping, bending, and sealing
• Drying damp surfaces and joints
• Shrinking heat-shrink tubing, films, tapes, solder sleeves, and molded parts
• Soldering and desoldering
• Thawing frozen water pipes
• Activating and dissolving solvent-free adhesives and hot-melt glues

No. The tool has an IP20 rating and must not be exposed to moisture or rain.

Starting

• Connect the tool to the power supply.
• Press the power button once. The fan starts.
• Press it once more to start heating.
• Set the temperature to a value between 0 and 10 (20–620 °C).
• Wait about 2 minutes until the maximum temperature is reached.
• Start welding when the power button light turns off. The light turns off when the set temperature is reached.

Turning off

• Press the power button once. The tool runs at full airflow to cool down and switches off automatically at 80 °C (176 °F). Then unplug the tool.

If the set welding temperature has not been reached after 5 minutes, you should:

• Check the power supply.
• If the heating element has failed, it must be replaced.

When the tool is reconnected, it returns to cooling mode.

Press and hold the power button for 5 seconds. The tool then switches off immediately and can be restarted.

• Let the tool cool down, or use combination pliers.
• Do not touch the nozzle when it is hot. Always place it on a heat-resistant surface.
• Push the nozzle over the heating tubes.
• Tighten the clamping screw.

• Never leave the tool unattended while it is running.
• Be careful near flammable materials.
• Check the surface and surroundings before and during use.
• Do not hold the tool in the same position for a long time.
• Keep a suitable fire extinguisher near the work area.

Yes, and you should. Always check the power cable after finishing welding work. If the power cable is damaged, switch off the tool, let it cool down, and contact the nearest authorized Sievert service center.

The tool can cause fire, explosion, and burns. The heat can ignite flammable materials, including materials that are not immediately visible. Never use the tool in flammable or explosive environments.

What do I do if the power cable is damaged? Do not start the tool. The power cable must be replaced immediately by the supplier, an authorized service center, or another qualified person. Contact an authorized Sievert service center.

What happens if the tool stops working during work? If the tool breaks down or stops unexpectedly during operation, there is a risk of fire, especially at high temperatures. The maximum hot air temperature is 620 °C (1,148 °F).

Do not throw it in household waste. According to EU Directive 2012/19/EU (WEEE), electrical tools that can no longer be used must be taken for environmentally friendly recycling in accordance with national regulations.

• Make sure the tool is disconnected from the power supply.
• Unscrew the cooling nozzle using a T20 Torx screwdriver.
• Remove the nozzle and the MICA tube.
• Remove the worn heating element.
• Insert the new heating element. Use the one intended for your model.
• Reassemble the nozzle and the MICA tube. Secure the nozzle with the T20 Torx screws.
• Connect and start the tool.

Which heating element should I use? Use the heating element intended for your model:

• ThermoPro Multi 230 V: article number 169041, 1,550 W
• ThermoPro Multi 120 V: article number 169043, 1,600 W

• Make sure the tool is disconnected.
• Loosen the air filter by prying it out with a fine screwdriver.
• Clean the air filter of dirt.
• Reinstall the air filter.

The tool must be disconnected from the power supply, switched off, and cooled down before any maintenance.

Contact info@sievert.se for authorized service centers.