Install Instructions

Install the Sensor and Cable

When the snow melt surface is finished,

remove the plastic plug from the socket

and fish the cable through the conduit

until there is only 6 to 12” (150 to 300 mm)

of cable between the sensor and conduit.

Loop this remaining extra wire in a loose

coil so as to not twist it, and place it, and

the sensor into the socket. Secure the

sensor to the socket with the four screws

provided, making sure the “O” ring is in

place and properly seated.

Replacing old 090 or 094

Current versions of the Snow / Ice socket 091 use #6-32 screws. Previous versions

of the 091 used smaller #4-40 screws. When replacing an 090 or 094, both sets

of screws are provided. It is recommended to try the smaller screws first to avoid

cross threading.

Salt and Brine Contamination

The performance of the snow / ice sensor water detection can be compromised

when exposed to de-icing agents such as road salt, magnesium chloride, or

calcium chloride. These contaminants can permanently damage the sensor. It

is recommended to locate the sensor away from areas exposed to these deicing

agents when at all possible. Locations to avoid could include tire track areas or

areas close to a curb where traveling vehicles may splash contaminated water on

to the sensor.

Maintenance

The Snow / Ice Sensor is installed in a hostile environment. Accumulation of dirt,

salty grime, etc., on its surface will inhibit proper water detection. It should be

checked on a regular basis and, when necessary, cleaned. Before cleaning, the

control power should be shut off to prevent the control from entering the snow melt

mode. Next, use a soft bristle brush and warm soapy water to clean the sensor

surface. Do not use a steel wire brush as this will damage the sensor. Then use

a paper towel to thoroughly dry the sensor surface. After cleaning, re-power the

control and push the test button to cycle the control through the test routine.

STEP THREE

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WIRING THE SENSOR

Electrical Connections

The snow / ice sensor cable has 5 wires: Red, Black, Blue, Yellow, and Brown. The

wires connect to the respective Red, Black, Blue, Yellow and Brown terminals on

the Snow Detector & Melting Control.