tekmar 509 Thermostat Installation - Manual (Page 4)

© 2012 D 508 - 04/12 4 of 16
MODE
Heat In the heat mode, the Heat relay is operated to satisfy the temperature
requirement of the zone.
Off In the OFF mode, the Heat relay is not operated.
NOTE: If an air or slab sensor is active in the OFF mode, a freeze protection is enabled
that allows the Heat relay to be operated to keep the zone above 35°F (2°C).
GETTING READY
Check the contents of this package. If any of the contents are missing or damaged, please
contact your wholesaler or tekmar sales representative for assistance.
Type 508 Includes: •• One Thermostat 508 • Data Brochure D 508 • • User Brochure U 508
Type 509 Includes: •• One Thermostat 508 • One 079 Slab Sensor • • Data Brochure D 508
User Brochure U 508
Installation - Slab Sensor 079
STEP ONE
INSTALLING THE SENSOR
New Installations
Thin-Set or Thin-Pour Applications
If the floor covering is to be installed over either
a thin-set or thin-pour material of sufficient
depth, the 079 slab sensor can be placed
directly into either the thin-set material or the
thin-pour material and covered over. Ensure
that the sensor is located in such a position that
the attached wire is able to reach to a suitable
junction location. Splices within the thin-set or
(45 mm) long should be cut to accommodate the sensor. The sensor should be located
mid way between the heating elements to ensure a proper temperature reading.
Tiles
Thin-set
Electric
Cables
thin-pour should be avoided to ensure trouble free operation. The sensor should be located
mid way between the heating elements to ensure a proper temperature reading.
If a thin floor covering is to be installed directly
to the subfloor, a groove 1/8” (4 mm) wide by
1/16” (2 mm) deep can be cut into the surface of
the subfloor to accommodate the wire for the
sensor. Ensure that the sensor is located in
such a position that the attached wire is able
to reach to a suitable junction location. Splices
under the floor covering should be avoided to
ensure trouble free operation. A groove 3/16”
(5 mm) wide by 3/16” (5 mm) deep by 1-3/4”
Hardwood
Subfloor
Thin Floor Coverings (less than 3/8” (10 mm))
SLAB SENSOR 079
The tekmar Slab Sensor 079 has a stainless steel sleeve which is designed for use in
concrete, thin-set or grout. The 079 is supplied with 10’ (3 m) of 2 conductor zipcord.