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Installation and operating instructions
EN
CHAPTER 1
GENERAL INFORMA-
TION
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DANGER
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WARNING
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CAUTION
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ATTENTION
Room sensor KWL-CO2 eC
1.1 Important information
In order to ensure complete and effective operation and for your own safety, all of the
following instructions should be read carefully and observed. The relevant national stan-
dards, safety regulations and instructions (e.g. DIN EN VDE 0100) as well as the technical
connection conditions of the energy supply company must be observed and applied.
Keep the operating instructions close to the unit for easy reference. After the final assem-
bly, the document must be issued to the operator (tenant/owner).
1.2 Warning and safety instructions
The adjacent symbol is a safety-relevant warning symbol. All safety regulations
and/or symbols must be absolutely adhered to, so that any dangerous situation
is avoided.
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DANGER
Indicates dangers which will directly result in death or serious injury if the safety instruction is
not followed.
m
WARNING
Indicates dangers which will result in death or serious injury if the safety instruction is not
followed.
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CAUTION
Indicates dangers which can result in injuries if the safety instruction is not followed.
ATTENTION
Indicates dangers which can result in material damage if the safety instruction is not followed.
1.3 Warranty claims – Exclusion of liability
Our warranty shall not apply if the following instructions are not observed. The same
applies for liability claims against the manufacturer. The use of accessories, which are
not recommended or offered by Helios, is not permitted. Any damage that may occur is
not liable for warranty.
1.4 Regulations - Guidelines
If the product is installed correctly and used to its intended purpose, it conforms to all
applicable regulations and EC guidelines at its date of manufacture.
1.5 Receipt
The delivery contains the room sensor KWL-CO2 eC incl. connection cable. Please
check delivery immediately on receipt for accuracy and damage. If damaged, please
notify the carrier immediately. In case of delayed notification, any possible claim may
be void.
1.6 Storage
When storing for a prolonged time, the following steps are to be taken to avoid damaging
influences:
Protection by dry, air-dustproof packing (plastic bags with drying agent and moisture
indicators). The storage place must be waterproof, vibration-free and free of temperature
variations. Damages due to improper transportation, storage or commissioning must be
verified and are not liable for warranty.
1.7 Intended use
Maintenance-free room sensor KWL-CO2 eC with active output, automatic calibration
(fixed), in an elegant plastic housing with snapon lid, for determining the CO
the air. The measuring transducer converts the measured variables into a bus signal. The
CO2 measurement is performed using an optical NDIR sensor (non-dispersive infra-red
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