Data Sheet

VDRKA122 © Danfoss 12/10
3
Data sheet ETS
Controller For Snow Melting Systems
The ETS is a stand alone snow melt controller
that provides an economical method for
removing the accumulation of snow or ice in
unwanted areas.
Mode Selection:
The controller can be selected to activate based
upon either both temperature and precipitation
or through temperature only, via toggle switch.
The diff erent sensors ETOG, ETSR and ETF
sensors are wired to the controller to provide
the feedback for the controller
Settable Temperature for Activation of
Controller:
The large adjustable knob sets the temperature
at which the controller would start the system.
This scale adjustment is adjustable from
32° to 41°F (0° to 5°C). Depending on the
mode selection, once the controller senses
the temperature through either the ETOG
pavement sensor or ETF outdoor sensor the
controller would activate.
Scale Adjustment:
Between the mode and settable temperature,
there is an adjustment knob to fi ne tune the
settable temperature. The adjustment of the
temperature is ± 9°F (± 5°C).
Function:
Wiring Diagrams:
Outdoor Sensor,
ETF
Gutter Sensor,
ETSR
N
L
(External relay necessary
with electric heating cable
application)