OJ Electronics ETO2 Anleitung Seite 3

ETO2 is an electronic controller for fully
automatic, economical ice and snow melting on
outdoor surfaces and in gutters.
Ice forms due to a combination of low
temperature and moisture. ETO2 detects both
temperature and moisture, and the ice and snow
melting system will usually only be activated
if ice or snow is present. ETO2 is suitable for
controlling both electric heating cables and
hydronic heating pipes.
Product programme
ETO2-4550 Thermostat.
ETOG-55 Ground sensor for detecting
temperature and moisture.
ETOG-56/ETOK-1 Embedded ground sensor
for detecting temperature
and moisture.
ETOR-55 Gutter sensor for detecting
moisture.
ETF-744/99 Outdoor sensor for
detecting temperature.
ETF-522 Water pipe sensor for
detecting temperature.
warnInG! – read this manual!
Carefully read this instruction manual in
its entirety, paying close attention to all the
warnings listed below. Make sure that you fully
understand the use, displays and limitations of
the controller because any confusion resulting
from neglecting to follow this instruction manual,
or from improper use of the device it concerns,
may cause an installer to commit errors which
could lead to ice and snow conditions capable
of causing serious injury or death.
English
Instruction
warnInG! – note that snow, ice and
icicles may be present even though
you follow the instructions contained in this
manual.
You are strongly advised to monitor any
unexpected build-up of snow, ice or icicles. As
an additional safety measure, you should always
perform a manual inspection of public areas in
order to ensure safe access to the controlled
areas.
warnInG! – Important safety
instructions.
Disconnect the power supply before carrying
out any installation or maintenance work on this
control unit and associated components. This
control unit and associated components should
only be installed by a competent person (i.e. a
qualified electrician). Electrical installation must
be in accordance with appropriate statutory
regulations.
NOTE! – The output relays are potential
free. The installer must connect a power
source, e.g. from an electrical panel.
CE MarkInG fOr Eu
OJ Electronics A/S hereby declares that the
product is manufactured in accordance with
Council Directive 2004/108/EC on
electromagnetic compatibility (and subsequent
amendments) and Council Directive 2006/95/
EEC on electrical equipment designed for use
within certain voltage limits.
applied standards
ETO2-4550-EU28:
ETO2-4550-US28:
ETO2-4550-RU28:
CE marking LVD/EMC:
EN60730-2-9
CAN/CSA E 60730-2-9:01.
CE marking LVD/EMC:
EN60730-2-9
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