1 General
The profi-air defroster heating DN 125 ensures that the heat exchanger in the profi-air 180 flat ventilation unit is protected
against frost without having to temporarily turn off the supply air fan.
1.1 Introduction
These installation and operating instructions are intended to help you install a fully functional profi-air defroster heating
and properly operate it. We recommend that you read these instructions carefully before you commence installation.
These installation and operating instructions can also serve as a reference for service and maintenance work and
guarantee smooth and efficient operation.
1.2 Safety
If used as intended, the device is safe and reliable to operate. The construction and design are state of the art and comply
with all relevant DIN / VDE regulations and safety provisions. All safety regulations, warnings and notices of these installation
and operating instructions, have to be complied with; non-compliance may result in personal injury and/or damage to the
profi-air defroster heating.
1.2.1 Safety regulations
1.2.2 Safety equipment and measures
Q
Installation, connection, putting into operation as well
as maintenance of the profi-air defroster heating may be
performed by authorised and qualified personnel only.
Q
Installation of the profi-air defroster heating must be carried
out according to applicable local construction, safety and
installation regulations.
Q
The profi-air defroster heating cannot be
opened without tools.
Q
Make sure that the heating spiral cannot be touched
with hands if the system is connected to power.
Q
Changes or modifications to the profi-air defroster heating
are not permitted.
Q
Keep these installation and operating instructions
near the profi-air defroster heating during the entire
life of the device.
Q
During maintenance, the defroster heating may be opened
in the “dead” state only, and may only be operated with
the installed duct network.
Installation / operating instructions – defroster heating profi-air DN 125
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