power modulator
WarmlyYours
Save Energy During Snow Melting Operation
POWER MODULATOR
UPPER LIMIT TEMPERATURE SENSOR
Features & Benefits

Isolated NTC temperature thermistor

10KΩ @ 25°C

30-foot cable

24VAC

Rated voltage – 300V

Semi rigid – enables the sensor to be pushed into conduit

Simple user interface for parameters set from
Power Modulator controller

Technician testing/commissioning mode enables reading
actual value
Power Modulator Upper Limit
Temperature Sensor
01
WarmlyYours
POWER MODULATOR
UPPER LIMIT TEMPERATURE SENSOR
About the Upper Limit Temperature Sensor
The Power Modulator Upper Limit Temperature Sensor is
installed under the surface and measures the ground
temperature. The temperature value sensed by the Power
Modulator Upper Limit Temperature Sensor is used by the
Power Modulator controller in its algorithm for energysaving operation of the snow-melting system.
The Power Modulator Upper Limit Temperature Sensor is
connected to the Power Modulator Controller with a
30-foot (10 m), 2-wire cable coated in a semi-rigid
polymeric material. The semi-rigid flexible cable enables
the technician and installer to push the sensor into a long
conduit without it getting bent.
The temperature value of the Power Modulator
Upper Limit Temperature Sensor can be observed by the
technician (in the Technician mode parameters of the
Power Modulator controller) and the location of the sensor
can be adjusted based on the real-time reading.
In case of damage in the Power Modulator Upper Limit
Temperature Sensor (due to external force such as digging
or drilling in the ground, damaging the cable), a warning
notice on the Power Modulator controller LCD will indicate
that the Power Modulator Upper Limit Temperature Sensor
is damaged and can be replaced.
Technical Specifications
Cable length
30-foot (10 m) two-conductor cable
Resistance
10KΩ @ 25°C
Installation
In slab inside a conduit
Operating temp.
--40°F to 68°F (-40° C to 20°C)
Material
Sensor – NTC thermistor
Cable jacket – TPE
Storage temp.
–50°F to 220°F (–40°C to 105°C)
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WarmlyYours
POWER MODULATOR
UPPER LIMIT TEMPERATURE SENSOR
Electrical Diagram
Upper Limit
Temperature
Sensor
connection to the Power Modulator system
GTR-SS
Gutter-Mounted
Ice Sensor
or
AIR-SS
Aerial-Mounted
Snow Sensor
Power
Modulator
Snow/Ice
Aerial
Sensor #4
Power
Modulator
Snow/Ice
Aerial
Sensor #3
Power
Modulator
Snow/Ice
Aerial
Sensor #2
Power
Modulator
Snow/Ice
Aerial
Sensor #1
Need assistance?
For more information, operating and technical manuals, please refer to www.warmlyyours.com.
*Product specifications are subject to change.
03
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