SECTION 16855

HEATING CABLES AND MATS

PART 1 GENERAL

SECTION INCLUDES

Heating cable.

Heating cable mat.

Temperature controllers for heating cable and mat.

RELATED SECTIONS

Section 03300 - Cast-in-Place Concrete.

Section 07631 - Gutters and Downspouts.

PERFORMANCE REQUIREMENTS

Pipe Trace Heating: Freeze protection with outside temperature at [___] degrees F [(___] degrees C).

Snow Melting Installations: [45] [___] W/sq ft, minimum, in protected areas.

SUBMITTALS

Submit under provisions of Section [01300.] [_____.]

Shop Drawings: Indicate [heating cable] [and] [mat] layout, locations of terminations, thermostats, and branch circuit connections.

Product Data: Provide data for [heating cable,] [mat,] and control components.

Manufacturer's Installation Instructions: Indicate installation instructions.

PROJECT RECORD DOCUMENTS

Submit under provisions of Section [01700.] [_____.]

Accurately record actual locations of [heating cable,] [mat,] [temperature sensors,] [thermostats,] and branch circuit connections.

OPERATION AND MAINTENANCE DATA

Submit under provisions of Section [01700.] [_____.]

Operation Data: Include description of operating controls.

Maintenance Data: Include repair methods and parts list of components.

QUALIFICATIONS

Manufacturer: Company specializing in manufacturing the products specified in this Section with minimum [three] [_____] years [documented] experience.

PRE-INSTALLATION CONFERENCE

Convene [one] [_____] week prior to commencing work of this Section, under provisions of Section [01039.] [_____.]

Require attendance of parties directly affecting the work of this Section.

Review sequencing of installation, protection from damage of finished installation, location of expansion and control joints in [building] [and] [concrete], and methods used for covering installations with [concrete] [and] [.] [insulation.]

COORDINATION

Coordinate Work under provisions of Section [01039.] [_____.]

Coordinate installation of heating [cable] [and] [mat] with installation of [concrete formwork,] [concrete placement,] [roofing [and gutters],] [piping,] [and][.] [piping insulation.]

PART 2 PRODUCTS

MANUFACTURERS

[_______________________________________________________.]

[_______________________________________________________.]

[_______________________________________________________.]

Substitutions: Under provisions of Section [01600.] [_____.]

HEATING CABLE

Heating Cable: Mineral-insulated, copper-sheathed, series resistance heating cable in [single] [two] conductor configuration with [one] [two] cold ends.

****** [OR] ******

Heating Cable: Thermoplastic-insulated, parallel resistance

heating cable.

****** [OR] ******

Heating Cable: Self-limiting, parallel resistance heating cable.

****** [OR] ******

Heating Cable: [________________________________________.]

Rating: [120] [208] [___] V, [___] W/lineal ft.

HEATING CABLE MAT

Description: Heating cable assembled into pre-spaced unit.

Heating Cable: [Mineral-insulated, copper-sheathed, series resistance heating cable.] [Thermoplastic-insulated, parallel resistance heating cable.] [____________________.]

Ratings: [120] [208] [___] V, [___] W/sq ft.

Non-heating Leads: [10] [___] ft length.

Unit Size: [36] [___] inch width; [___] ft ;length.

ACCESSORIES

Thermostat: [_________________________________________.] [Manufacturer and model: [______________________________.]]

Snow Detector: [______________________________________.] [Manufacturer and model: [______________________________.]]

PART 3 EXECUTION

EXAMINATION

Verify that [piping] [ceiling framing] [concrete formwork] is ready to receive work.

Verify field measurements are as shown on [shop drawings.] [Drawings.]

Verify that required utilities are available, in proper location, and ready for use.

Beginning of installation means installer accepts conditions.

INSTALLATION

Install in accordance with manufacturer's instructions.

Bending Radius: Six times cable diameter, minimum.

Avoid pinching and making sharp bends in cable.

Prevent damage by sharp rocks, metal, or other objects during installation.

Do not install [heating cable] [and] [mat] across expansion or construction joints.

Do not cross heating cable over itself.

Cable Spacing in Concrete: [3] [___] inch centers, minimum; [9] [___] inch centers, maximum.

Depth in Concrete: [2] ___] inches below finished surface.

Installation [in Ceiling] [and] [on Roof]: [Do not begin until roofing work is complete.] Route and fasten cable in accordance with manufacturer's instructions. Select and install cable based on maximum safe temperature for materials used.

FIELD QUALITY CONTROL

Field [inspection] [and] [testing] will be performed under provisions of Section [01400.] [_____.]

Test continuity of heating cable.

Measure insulation resistance to manufacturer's recommended values. Use test instruments in accordance with manufacturer's instructions.

Perform continuity and insulation resistance test on completed cable installation. For cables embedded in concrete, perform tests immediately before and after concrete placement.

Measure voltage and current at each unit.

Submit written test report showing values measured on each test for each cable.

DEMONSTRATION

Provide systems demonstration under provisions of Section [01650.] [_____.]

Demonstrate operation of heating cable controls.

END OF SECTION