lnstall the CDP-2 into the electrical enclosure using the two screws provided, The screws are compatible
with both metallic and non-metallic enclosures. Once installation is complete a "modulaf electrical cover
plate can be installed. Compatible types include the Leviton@ Decora@ and Hubbell@ Styleline series.
External Gontrol/Monitor Operation
The CDP-2 indicators show the cunent setting of the manual override switch for the attached snow
sensor, either MANUAL ON, AUTOMATIC, or STANDBY. The sensor override switch will also override
any current CDP-2 commands. Whenever the senso/s switch overrides the CDP-2's setting, then
returns to AUTOMATIC mode, the CDP-2 will also return to AUTOMATIC mode. The sensor override
switch should be left in the center AUTOMATIC position to allow the CDP-2 to control the system.
The CDP-2 provides three pushbutton switches; STANDBY, AUTOMATIC, and MANUAL 0N. The
respective LED indicators for each control reflect the current operating mode of the snow sensor, Note
that, to save energy, the LED indicators
blink periodically rather than remaining
steadily illuminated. Pressing STANDBY
will set the connected snow sensor to
ignore snow fall and prohibit automatic
operation of an attached snow melt system.
This function can be used to save energy if
automatic snow melting is not critical.
Pressing AUTOMATIC will set the
connected snow sensor to automatically
activate and control an attached snow melt
system when snow is detected. Note that,
if power is lost, the CDP-2 will always
repower into AUTOMATIC mode.
A "Delay Off' drying cycle time is configured
on the snow sensor with a time delay of 30-
90 minutes. lt begins once snow stops
falling and allows the heated surface to
more thoroughly dry. For example, if the
cycle is set for 30 minutes and snow falls for
2 hours the snow sensor will operate the
snow melt system for 2 hours, 30 minutes. Switching the sensor override switch to the MANUAL ON
position will cause the sensor to close its relay, illuminate the CDP-2 MANUAL ON and DEICE ON
indicators, and activate the snow melt system continuously, Pressing the MANUAL ON button on the
CDP-2 will not trigger the sensor to run continuously but will initiate one drying cycle, This mode can be
used to test the system or clear any remaining unmelted snow. This function allows the user to run a
cycle without having to remember to shut the system back off. The sensor will initiate one drying cycle
and revert to automatic mode, ready for detection, The MANUAL ON mode can be activated directly
from either AUTOMATIC or STANDBY mode. The user may clear the drying cycle by pressing
STANDBY. Note that a properly vtorking unit willry! show a MANUAL ON indication during this
cycle but will show AUTOMATIC with a DEICE ON indicator.
The DEICE ON indicator shows whether or not the attached snow sensor has been activated and the
snow melting system is operating.
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