General safety instructions

Please also observe the separate safety instructions for industrial fans (0185.1286.0000).

The unit must not be used in the following situations under any circumstances:

Risk of combustion/fire from flammable materials, liquids or gases in the vicinity of the unit.

  1. Do not place any flammable materials, liquids or gases near the unit, which may ignite in the event of heat or sparks and catch fire.

Risk of ignition/fire due to dirt particles in the outside air (grease, chemicals, adhering solid particles) or aggressive gases/vapours. These can soil the unit and cause a fire.

  1. Never use unit to heat these substances.

Explosion hazard due to gases and dust.

Explosive gases and dust may ignite and cause serious explosions or fire.

  1. Never use unit in an explosive atmosphere (risk of explosion).

Risks for children and people with reduced physical, sensory or mental capabilities or a lack of knowledge.

  1. Unit may only be installed, commissioned, cleaned and maintained by persons who can safely recognise and avoid the risks associated with this work.

Risk of fire if foreign objects are inserted into the unit.

  1. Do not insert any objects in the unit.

Risk of burns/fire.

  1. Keep sufficient distance from the unit during operation. Do not cover the unit or the heat sink element (ERH..R, DRH..R) and do not touch it during or shortly after operation, as it can become very hot.

Risk of injury and health risk in the event of changes or modifications or if components which are not permitted are used.

The unit may only be operated with original components. Changes and modifications to the units are not permitted and release the manufacturer from any guarantee obligations and liability, e. g. if the housing is drilled at a point which is not permitted.

Risk of injury/damage to unit if the unit falls during installation/removal (assembly/disassembly/cleaning/maintenance) (weight up to 10 kg, depending on type).

  1. Ensure that you are standing securely and cannot lose your balance and that there is no one under the unit during installation work. When removing and installing the unit, support it from below with one hand.

Risk of injury when working at heights.

  1. Use appropriate climbing aids (ladders).
  2. Stability should be ensured, if necessary have the ladders steadied by a 2nd person.
  3. Ensure that you are standing securely and cannot lose your balance and that there is no one under the unit.

Risk of burns due to hot unit.

The electric air heater may still be hot after switching off the unit.

  1. Do not touch the unit until it has cooled down.

Danger of electric shock when operating a unit which is damaged or not fully mounted.

Before working on the electric air heater, shut down all supply circuits (switch off mains fuse), secure against being accidentally switched back on and position a visible warning sign.

  1. Only operate the unit when it is completely installed.
  2. Do not commission a damaged unit. Prevent from being switched back on until fully repaired.

Danger if the relevant regulations for electrical installations are not observed.

  1. Before removing the housing cover or removing the fan insert and before installing the electrics, switch off all supply circuits, switch of mains fuse and secure it against being accidentally switched back on again. Attach a warning sign in a clearly visible place.
  2. Be sure to observe the relevant regulations for electrical installation; e.g. DIN EN 50110-1. In Germany, particularly observe VDE 0100, with the corresponding sections.
  3. A mains isolation device with contact openings of at least 3 mm at each pole is mandatory.
  4. Only connect unit to permanently wired electrical installation and with NYM-O or NYM-J cables, depending on the unit variant, 3 x 1.5 mm² or 5 x 1.5 mm².
  5. Units may only be operated using the voltage and frequency shown on the rating plate.
  6. Make electrical connections according to circuit diagram. Check PE conductor connection.
  7. The degree of protection stated on the rating plate is only guaranteed if installation is undertaken correctly and if the connection cable is correctly guided through the cable screw connection in the terminal compartment. This must tightly seal the cable sheathing. The terminal compartment cover must be properly fitted.

Risk of injury/fire if the electric air heater is damaged.

  1. Switch the electric air heater off immediately if you discover damage or faults that could endanger persons or property. Prevent from being switched back on until fully repaired.

Fire hazard due to flammable objects next to the electric air heater.

  1. It is essential to maintain a safety distance of at least 150 mm between the electric air heater and all combustible objects. Use suitable insulation for shorter distances.

Risk of injury/fire if the electric air heater is not properly cleaned.

  1. If a TFE air filter is used, the unit is maintenance-free. Otherwise, the unit must be cleaned at regular intervals (by a trained specialist).

Risk to health if unit is not correctly cleaned.

  1. Clean the unit regularly, at least every 2 years. This is the only way of ensuring that the unit is running hygienically.