Ouellet OWC-M - Manual (Page 5)

5
1.2.1 Required clearances
The OWC-M concrete heating cable system is designed to generate 11 W/ft² (120 W/m²) of heat as per
factory installed specifications, with spacings of 6” (15 cm). Any spacing other than those specified in the
manual must first be approved by a specialist from Ouellet Canada Inc. OWC-M concrete heating cable
systems must be installed according to the following minimum distances:
- 3’’ (7.5 cm) between mat strips.
- 6’’ (15 cm) from the exterior perimeter of walls in the room to be heated.
- 3’’ (7.5 cm) from interior walls (if installed in ambient control by room).
- 6’’ (15 cm) from any drain or other fixed obstacle to be bypassed.
- 8’’ (20 cm) from any heating appliance anchored into the floor or coming into contact
with the floor (not applicable for convector-type appliances).
- 2’’ (5 cm) within the concrete surface.
- 0.5’’ (1.3 cm) from any open combustible surface.
1.2.2 Always
- Read the present instruction book in its entirety before installing the product.
- Install the OWC-M system together with an adequate and approved temperature control device.
- Use copper wires only.
- Perform tests required in accordance with the present instruction book and record findings on the
measurement chart.
- Make sure heating cables are completely encased in concrete.
- Make sure supply voltage is equivalent to the system’s rated voltage.
- Perform any repair work using the OWC repair kit available at your authorized Ouellet Canada Inc.
dealer.
- Consult Ouellet Canada’s specialists for any additional information.
- We recommend installing OWC-M systems in temperatures above 5 °C (40 °F).
- Metallic structures or materials used for supporting cables or on which cables are installed must
be grounded in compliance with the Canadian Electrical Code (CSA C22.1, section 10 and the
National Electrical Code).
- Installers must inspect and remove any damaged or defective heating cables before they are
covered up.
- Installers must provide markings on circuit-breakers (labels) that supply the electric circuit for
the heating cables.
1.2.3 Never
- Install OWC-M mat cable sections that are less than 3” (7.5 cm) from one another. This could create
overheating of the floor and cause damage.
- Reduce the length of heating cables or alter OWC-M cables in any way throughout their entire surface;
- Cross, overlap or layer heating cables (cables should never touch).
- Connect a product designed for 208/240V to 347V.
- Subject concrete cables to a bend radius inferior to 1.5” (38 mm).
- Install the temperature control device (thermostat or other) in a location which is accessible from
a shower or bathtub (the control device must be installed more than 1 meter away (3 feet, 4 inches)).
- Use metal fasteners for installing heating cables or the temperature sensor.
- Install the OWC-M heating cable system if the security seal has been broken.