Important notes
Information on the installation manual
This manual enables operating or service personnel
to correctly install the product described below and
to use it safely and efficiently.
It is essential that these individuals read and fully
understand this manual before starting any work.
The basic prerequisite for safe working is to comply
with the safety notes and all instructions in this
manual.
The local regulations for health and safety at work
and general safety regulations also apply.
Qualified staff
The work described in this manual has to be carried
out by individuals with the qualification, training,
knowledge and experience described below:
HVAC technician
HVAC technicians are individuals who have suffi-
cient professional or technical training in the field
they are working in to enable them to carry out their
assigned duties at the level of responsibility allo-
cated to them and in compliance with the relevant
guidelines, safety regulations and instructions.
HVAC technicians are individuals who have in-
depth knowledge and skills related to HVAC sys-
tems; they are also responsible for the professional
completion of the work under consideration.
HVAC technicians are individuals who have suffi-
cient professional or technical training, knowledge
and actual experience to enable them to work on
HVAC systems, understand any potential hazards
related to the work under consideration, and recog-
nise and avoid any risks involved.
Limitation of liability
The information in this manual has been compiled
with reference to the applicable standards and
guidelines, the state of the art, and our expertise
and experience of many years.
The manufacturer does not accept any liability for
damages resulting from:
Non-compliance with this manual
Incorrect use
Operation or handling by untrained individuals
Unauthorised modifications
The actual scope of delivery may differ from the
information in this manual for special constructions,
additional order options or as a result of recent
technical changes.
Copyright
This document, including all illustrations, photos,
etc., is protected by copyright.
Any use of this document without the written con-
sent of the manufacturer is an infringement of copy-
right; this applies in particular to disclosing this
document to third parties, to publishing, copying,
microcopying, or translating content, and to saving
content on electronic systems or modifying it.
Violators will be held liable for any damage. The
right to further claims remains reserved.
Personal protective equipment
Personal protective equipment must be worn for
any work in order to reduce health or safety haz-
ards to the minimum.
The appropriate protective equipment for a job must
be worn for as long as the job takes.
Correct use
Non-return dampers are used to prevent air from
flowing against the intended airflow direction. They
open and close automatically and are used for
supply air or extract air in ventilation and air condi-
tioning systems.
Important notes
Non-return dampers Types UL, KUL, WG-KUL, ARK, ARK-1
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