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Installation and Operating Instructions
ATTENTION
CHAPTER 3
SERVICE AND
MAINTENANCE
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DANGER
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WARNING
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DANGER
Electrical post-heater – KWL-ENH 890 W
4. Place the electrical post-heater on the mounting bracket and screw to the other side (see Fig. 3).
5. Pass the connection cable under the fan cable and then plug it in (see Fig. 3).
Impeller damage due to loose parts/foreign bodies
> It must be ensured that there no foreign bodies remain in the unit after any work!
6. Screw the cover panel back on.
7. Insert the upper unit door and close it with the snap-in hooks.
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Service and maintenance
Cleaning and maintenance work may only be carried out by an electrician.
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Danger to life due to electric shock!
The unit must be fully isolated from the mains power supply before all maintenance and installation work and
opening the terminal compartment!
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Risk of burns!
Danger due to hot surfaces
Wait until the electrical post-heater has fully cooled down prior to maintenance work
The electrical post-heater must be visually inspected for dirt and damage every 12 months. To do this, remove the
cover panel. If there is dirt and dust on the electrical post-heater, these can be removed with air.
In this respect, the preheater must be removed from the unit. (Follow the installation sequence in reverse).
– When cleaning, it must be ensured that the electrical post-heater is not damaged.
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Standstill and disposal
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Danger to life due to electric shock!
Live parts are exposed during dismantling and touching these live parts will lead to electric shock.
> Before dismantling, isolate the unit from the power supply and secure against unintentional restart!
Parts and components of the unit, whose service life has expired, e.g. due to wear and tear, corrosion, mechanical
load, fatigue and/or other effects that cannot be directly discerned, must be disposed of expertly and properly after
disassembly in accordance with the national and international laws and regulations. The same also applies to auxiliary
materials in use. Such as oils and greases or other substances.
The intended and unintended further use of worn parts, e.g. impellers, rolling bearings, filters, etc. can result in danger
to persons, the environment as well as machines and systems. The corresponding operator guidelines applicable
onsite must be observed and used.
Please think of the environment, you can make a significant contribution to the environmental protection by returning!
Fig 3
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