Instruction Manual
10
Placement of Individual Ground Sensors
The sensor must be placed within the heated area and at least 3.3’ (1m) from the edge of the area.
The sensor must be placed in between the heating cables—a minimum distance of 0.4” (1 cm) should be maintained between the sensor
tube and the heating cable.
There must be a minimum distance of
3.3’ (1 m) between the two sensors. (As
shown in diagram below)
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KING ELECTRIC MFG CO · 9131 10TH AVENUE SOUTH · SEATTLE, WA 98108 · PH:206 762 0400 · FAX: 206 763 7738 · www.king-electric.com
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WARNING Installation in Asphalt, the temperature must not exceed 176°F (80°C) around the sensor/tube. A wooden block or similar place hold-
er may be used in the area where the tub/sensor can be placed subsequently. The installation pipe used for the sensor cable should, in that
case, be a metal tube that can withstand high temperatures.
Placement of Ground Sensors
Correct placement of the sensor(s) is important for the system to work as intended. Some basic guidelines follow:
The number of ground sensors:
The more sensors added to the system the better the performance.
The basic principle is to place one sensor where the snow/ice will appear first (for fast detection) and one sensor where the snow/ice will
disappear last (for complete melting). Just place the sensors as far apart as possible.
With only one sensor you will have to decide what is most important:
a) Fast detection and activation of the system or
b) Securing a complete melting of all snow/ice. A one sensor ground system will be slower in terms of detection and activation than a
two senso4r ground system, where one sensor measures the ground temperature and the other sensor measures the moisture.
Use two or more to cover problem spots where snow usually is not detected or where snow is not completely when the system shuts down.
INSTALLATION INSTRUCTIONS