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© 2018 OJ Electronics A/S
OJ Winterline
®
1 2 System Applications
The controller uses readings from temperature and
moisture sensors to ensure optimal economic power
consumption when keeping outdoor areas and roofs free
of ice and snow The moisture sensor is installed on the
surface of the outdoor area or placed in the gutter As
soon as moisture is detected, the controller activates the
snow-melting system Once the sensor has dried out, the
thermostat immediately switches to after-run, and the
system will continue to provide heat for a predetermined
amount of time
It is very important to choose the correct application, to
make sure you have the correct type of sensors for your
system
Gutters, roofs, downpipes or antennas
Use the controller ETOP-4770 together with the gutter
sensor ETOR-55 and the outdoor sensor ETF-744/99
The ETOR sensor is designed for installation in gutters,
downpipes, etc The ETOR sensor detects moisture,
while the ETF sensor measures temperature
Small ground areas (such as parking areas),
loading ramps, balconies, ramps or railroad tracks
Use the controller ETOP-4770 together with the ground
sensor ETOG and/or the outdoor sensor ETF-744/99
(optional)
The ETOG sensor is designed for embedding in the
surface of the outdoor area ETOG sensors measure
ground temperature and moisture The ETF-744/99
sensor can be used for measuring rapid drops in
temperature
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