24 | uponorpro.com
Melt
suspended
Enters
CWCO
Exits
CWCO
Pavement Snow
and Ice Sensor
(A3040090)
Pavement sensor and slab dry and
ADD MELT time elapses
Pavement sensor detects water
WWSD
Touch STOP key
Timed
melt
Idle
or
off
Touch MELT key
If the snow melting system is manually
stopped, the sensor must fully dry
before it is able to detect a new snow
fall and automatically start the snow
melting system.
EconoMelt
When a Pavement Snow and Ice
Sensor is installed, the installer can
choose to select to either automatically
or manually start the snow melting
system. Selecting EconoMelt to On
provides the option to remove the snow
using a snow plow or shovel and then
use the snow melting system to melt the
remaining thin layer of snow or ice that
mechanical snow removal methods are
unable to remove. The snow melting
system stops when the sensor is dry.
The factory default for EconoMelt is Off.
Melt
suspended
Melt
Off
Enters
CWCO
WWSD
Touch STOP key
Touch START key
Pavement sensor and slab dry
and ADD MELT time elapses
Exits
CWCO
Automatic start and timed stop
Automatic start with a timed stop operation
requires the installation of an Aerial Snow
Sensor (A3040095). It is also highly
recommended to install a Slab Sensor for
Aerial Snow Sensor (A3040073) to regulate
the slab temperature and operate the snow
melting system at the highest possible
efficiency.
The control continually monitors the sensor
for the presence of moisture and slab
temperature conditions in which snow
or ice may be present. When moisture
is detected, the control will show Sensor
Water Wet in the View menu. When the
sensor is dry the control will show Sensor
Water Dry. The control includes a Sensitivity
setting in the Set Temp menu that allows the
installer to adjust the amount of moisture
required to start and stop the melting
operation. In areas with low amounts of dust
and/or air pollution, the sensitivity may need
to be increased. The factory default is for
the Sensitivity setting is Auto. The control
automatically determines the best suitable
sensitivity setting for the installation.
Aerial
Snow Sensor
(A3040095)
Aerial
snow
sensor
