Ouellet OWS - Manual (Page 11)

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6 Diameter of the ground sensor cable: 5/16” (8 mm).
7 In compliance with the National Electrical Code (NEC 426.13 Identification).
8 Refer to the product catalogue for more information on available options. Each control option is supplied
with an installation manual.
9 Requires a ground fault circuit interrupter (GFCI) in the electrical panel.
3.2. Required materials
To install the OWS-T heating cable system for snow melting, you will need the following material:
Included materials
• OWS-T: Heating cable for snow melting on mat.
• OTM-CC: Electrical fault indicator.
• Instruction manual.
• Measurement table label.
Required material (not provided)
• Calibrated megohmmeter and multimeter.
• Control device (see options available).
• Ground fault circuit interrupter (GFCI).
• Junction box approved for the environment in which it is used.
• Conduit approved for cold leads (high voltage electric cable).
• Conduit approved for ground sensor
6 (where required).
Note: Conduits could be of the same type; however, cold lead and ground sensor cable should be
in separate conduits).
• Welded wire mesh or reinforcing bars for installation in concrete slabs.
• Plastic tie-wraps for framework installations (plastic tie-wraps are available as an option).
• Concrete anchors or nails to set the galvanized steel strapping (strapping available as an option).
• Angle irons, 1'' x 1'' (protection of cable under control joints for a concrete slab installation).
• RTV silicone rubber (protection of cable under control joints for a concrete slab installation
and to seal the ground sensor).
• Measuring and leveling tools.
• Scissors.
• Spray paint to outline clearances.
Available Installation Options
• OW-TYW: Bag of 100 plastic tie-wraps.
• OW-G82-G: 82 ft. (25 m) galvanized steel strapping.
• OW-KIT: Heating cable repair kit.
• OWS-CAUT: Caution plaque
7 .
Available Controler and Sensor Options 8
• DS-2C : Aerial mounted sensor and controller to detect humidity and temperature 9 .
• ETO2 : Dual-zone electronic controller 9 .
• ETOG : Ground sensor to detect humidity and temperature with 33 ft. (10 m) side entry cable.
• ETOG-56 : Ground sensor to detect humidity and temperature with 80 ft. (25 m) bottom entry cable.
• ETO2-BOX : Mounting box for dual-zone electronic controller ETO2.
• ETOK-1: Mounting tube for ground sensor ETOG-56.