Orbit Floor Heating Specifications

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ELECTRIC RESISTANCE FLOOR HEATING

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** NOTE TO SPECIFIER ** Orbit Radiant Heating; interior radiant heating, exterior snow melting, exterior roof and gutter ice melting for both residential and commercial applications.
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This section is based on the products of Orbit Radiant Heating, which is located at:
1507 W. Park Ave.
Perkasie, PA 18944
Toll Free Tel: 800-522-3986
Tel: 215-453-9228
Fax: 215-257-7399
Email: request info
Web: www.OrbitMfg.com
[ Click Here ] for additional information.

Orbit Manufacturing has been in the electrical heating business since 1961. We began as a manufacturer of electrical residential and light commercial baseboard, and added an architectural line of electrical products in 1980. In 1992, we established our initial agreement to distribute Nexans heating cable throughout the United States, becoming one of the first domestic radiant heating system suppliers.

Our partner, Nexans, is the worldwide leader in the cable industry. A pioneer in electric radiant heating, Nexans has been manufacturing radiant heating cable since 1926. Nexans' extensive experience and superior heating cable products along with Orbit's knowledgeable in electric radiant heating sales and customer support, form an ideal partnership that brings you the radiant comfort that you deserve.

Residential Radiant Heating Applications    Orbit electric radiant heating systems can be used for a wide variety of applications. For indoor applications, our Nexans cables and mats can be used to warm any kind of floor, including hardwood, tile, laminates and marble. For outdoor applications, Nexans cables can melt snow and ice from ground surfaces such as concrete, brick, pavers or asphalt, as well as roofs and gutters.

Commercial & Industrial Applications    Orbit's durable electric radiant heating systems, comprised of Nexans cables, are designed to withstand the rigors of demanding applications in almost any commercial application, from snow and ice melting to frost protection. Our systems can be used to melt snow and ice from concrete, brick or asphalt, as well as from roofs and gutters.

We engineer and customize each system to ensure you get just the right configuration for your particular application to ensure the lowest first cost and operation expenses.

Radiant Heating Controls   Orbit provides a variety of control products for all of our electric radiant heating systems.

PART 1 GENERAL

1.1 SECTION INCLUDES

** NOTE TO SPECIFIER ** Delete items below not required for project.

A. Electric floor heating system.

1.2 RELATED SECTIONS

** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.

A. Section 16050 - Basic Methods and Materials: Power and controls wiring.

1.3 SUBMITTALS

A. Submit under provisions of Section 01300.

B. [ Product Data ]: Manufacturer's data sheets on each product to be used, including:

1. Preparation instructions and recommendations.

2. Storage and handling requirements and recommendations.

3. Installation methods.

** NOTE TO SPECIFIER ** Delete if shop drawings not required.

C. Shop Drawings:

1. Provide dimensioned layout of heater cable as required by application.

2. Provide schematic layout of controls and sensors.

1.4 QUALITY ASSURANCE

A. Manufacturer Qualifications: Manufacturer shall have not less than 35 years experience manufacturing the heating cables specified in this Section.

B. Installer Qualifications: Installer shall demonstrate experience on projects of similar size and complexity. All wiring connections shall be done by a licensed electrician.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Store products in manufacturer's unopened packaging until ready for installation.

1.6 PROJECT CONDITIONS

A. Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.

1.7 WARRANTY

A. The Electrical Contractor shall verify and record resistance and insulation-to-ground readings of the system upon delivery and again before start up.

B. If readings show electrical faults upon delivery testing, then manufacturer shall replace the cable at no cost to the Owner.

C. If readings show electrical faults following receipt testing, then Contractor shall replace the cable at no cost to the Owner or the manufacturer.

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Acceptable Manufacturer: Orbit Radiant Heating, which is located at: 1507 W. Park Ave. ; Perkasie, PA 18944; Toll Free Tel: 800-522-3986; Tel: 215-453-9228; Fax: 215-257-7399; Email: sales@orbitmfg.com; Web: www.OrbitMfg.com

** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.

B. Substitutions: Not permitted.

C. Requests for substitutions will be considered in accordance with provisions of Section 01600.

** NOTE TO SPECIFIER ** Delete if not required.

2.2 COMMERCIAL FLOOR HEATING SYSTEM

A. Provide a complete, integrated system, comprised of heating cables, sensors and control panels.

1. Provide heating cables with factory-installed cold junctions as described in this section and shown on the Drawings.

2. Provide one Control System to operate with a power source of:

** NOTE TO SPECIFIER ** Delete voltage not required.

a. 120 volt.

b. 208-240 volt 3 wire.

c. 277 volt 3 wire.

d. 208-240 volt 4 wire.

e. 277 volt 4 wire.

f. 460 volt.

g. 480 Volt.

** NOTE TO SPECIFIER ** Delete phase not required.

h. Single phase.

i. 3 Phase.

3. Provide Line Voltage thermostat with temperature sensors.

4. Compliance with 2005 NEC (National Electric Code) in 424.44:

a. Provide GFCI personal protection type branch circuit breakers for heating cable located in normally wet areas (i.e bathrooms, shower rooms, kitchens). Provide branch circuit protection in other locations.

B. Heating Cables:

1. Cable shall be Series TXLP produced by Nexans Norway A/S.

2. Provide heating cable with the following properties:

a. Single conductor, series resistance type.

b. Twin conductor, series resistance type.

c. Tinned copper ground conductor.

d. Three layers of waterproof protection to include:

1) Insulated by type XLPE cross-linked polyethylene.

2) Integral full-length foil shield.

3) Surrounded with extruded PVC outer jacket.

e. Cable shall be continuously marked with manufacturer's name, lot number and ohms resistance per linear meter.

f. Packaged units shall be precut to correct length with 14 gauge cold lead and patented welded splice. Field connecting of cold lead wire is not acceptable.

g. Sized to produce a maximum of 10 Watts/lf, (maximum 30 Watts/sf.) when energized.

h. Wire insulation shall be tested and documented before shipment with a 1000v-mega ohm meter; insulation resistance less than 500 mega ohm shall be rejected.

i. UL listed.

j. Designed to meet current NEC regulations when properly installed.

k. Warranty of 10 years minimum.

3. Self-regulating cable is not acceptable.

C. Temperature Control:

1. Orbit Manufacturing's CSA Approved Line Voltage Thermostat:

2. Control of the system shall be achieved by the use of one or more thermostats with temperature sensor as follows:

a. Model AT115-AF (Floor, Ambient, or Dual Sensing).

3. Features:

a. CSA Approved.

b. Provide GFCI Class A 5 mA trip level for installations of 15 Amps and under at 120/240 Volt.

c. For projects 15.1 Amps and over provide control panel set-up and separate GFCI protection per NEC 424.44.

d. GFCI disconnect L and N (L2) using two relays.

e. Grounded neutral detection, using 2 coils.

f. 4 event clock function.

g. Manual Mode option.

** NOTE TO SPECIFIER ** Delete standard control system if not required.

D. Control System: Standard UL Listed Orbit RFW Series Control:

1. Enclosures shall consist of a NEMA 1 panel, designed for indoor surface or recessed mounting, including:

a. Power Control by means of Magnetic Contactors, rated at 50 Amperes Resistive Load, Single Phase.

** NOTE TO SPECIFIER ** Delete panel type not required.

b. 50 Amp (1 Contactor) Panel.

c. 100 Amp (2 Contactor) Panel.

d. 200 Amp (4 Contactor) Panel.

e. Contactors pre-mounted and pre-wired in the enclosure.

f. Pre-mounted and pre-wired Terminal Connections.

** NOTE TO SPECIFIER ** Delete custom control system if not required.

E. Control System: Custom UL Listed Control Enclosure shall consist of a NEMA 12 panel, designed for indoor surface mounting, including:

1. Primary power disconnect switch (circuit breaker) in accordance with NEC recommendations.

2. Power Control by means of Magnetic Contactors, rated at 50 Amperes Resistive Load, 1 or 3 Phase, as required.

** NOTE TO SPECIFIER ** Delete contactor type not required.

a. Contactors shall be pre-mounted and pre-wired in the enclosure.

b. Contactors shall be remotely mounted inside NEMA rated enclosures, when NEC required GFI protection is provided by Orbit Mfg. in lieu of the Contractor.

3. Control circuit transformer, where required.

4. Pilots lights, indicating: Main Power On, Each Circuit On and Control System On.

5. Touch Safe', labeled termination points for control power, remote control connections and cable power connections.

6. The control enclosure shall bear a UL label.

** NOTE TO SPECIFIER ** Delete if not required.

2.3 RESIDENTIAL FLOOR HEATING SYSTEM

A. Provide a complete, integrated system, comprised of heating cable(s), sensor(s) and control panel(s).

1. Provide heating cables with factory-installed cold junctions as described in this section and shown on the Drawings.

2. Provide one Control System to operate with a power source of:

** NOTE TO SPECIFIER ** Delete voltage not required.

a. 120 Volt, Single Phase.

b. 208-240 Volt, Single Phase.

3. Provide Line Voltage thermostat with temperature sensors.

4. Compliance with 2005 NEC (National Electric Code) in 424.44:

B. Heating Cables:

1. Cable shall be Series TXLP produced by Nexans Norway A/S.

2. Provide heating cable with the following properties:

a. Single conductor, series resistance type.

b. Twin conductor, series resistance type.

c. Tinned copper ground conductor.

d. Three layers of waterproof protection to include:

1) Insulated by type XLPE cross-linked polyethylene.

2) Integral full-length foil shield.

3) Surrounded with extruded PVC outer jacket.

e. Cable shall be continuously marked with manufacturer's name, lot number and ohms resistance per linear meter.

f. Packaged units shall be precut to correct length with 14 gauge cold lead and patented welded splice. Field connecting of cold lead wire is not acceptable.

** NOTE TO SPECIFIER ** Delete custom requirement below if not required.

g. Custom units shall be precut to correct length with 10 gauge cold lead conductors manually crimped to the resistance wire and tested at the factory. Field connecting of cold lead wire is not acceptable.

h. Sized to produce a maximum of 10 Watts/lf, (maximum 30 watts/sf.) when energized.

i. Wire insulation shall be tested and documented before shipment with a 1000v-mega ohm meter; insulation resistance less than 500 mega ohm shall be rejected.

j. UL listed.

k. Designed to meet current NEC regulations when properly installed.

l. Warranty of 10 years minimum.

3. Self-regulating cable is not acceptable.

C. Temperature Control:

1. Orbit Manufacturing's CSA Approved Line Voltage Thermostat:

2. Control of the system shall be achieved by the use of one or more thermostats with temperature sensor as follows:

a. AT115-AF (Floor, Ambient or Dual Sensing).

3. Features:

a. CSA Approved.

b. Provide GFCI Class A 5 mA trip level for installations of 15 Amps and under at 120/240 Volt.

c. For projects 15.1 Amps and over provide control panel set-up and separate GFCI protection per NEC 424.44.

d. GFCI disconnect L and N (L2) using two relays.

e. Grounded neutral detection, using 2 coils.

f. 4 event clock function.

g. Manual Mode option.

** NOTE TO SPECIFIER ** Delete standard control system if not required.

D. Control System: Standard UL Listed Orbit RFW Series Control:

1. Enclosures shall consist of a NEMA 1 panel, designed for indoor surface or recessed mounting, including:

a. Power Control by means of Magnetic Contactors, rated at 50 Amperes Resistive Load, Single Phase.

** NOTE TO SPECIFIER ** Delete panel type not required.

b. 50 Amp (1 Contactor) Panel.

c. 100 Amp (2 Contactor) Panel.

d. 200 Amp (4 Contactor) Panel.

e. Contactors pre-mounted and pre-wired in the enclosure.

f. Pre-mounted and pre-wired Terminal Connections.

** NOTE TO SPECIFIER ** Delete custom control system if not required.

E. Control System: Custom UL Listed Control Enclosure shall consist of a NEMA 12 panel, designed for indoor surface mounting, including:

1. Primary power disconnect switch (circuit breaker) in accordance with NEC recommendations.

2. Power Control by means of Magnetic Contactors, rated at 50 Amperes Resistive Load.

** NOTE TO SPECIFIER ** Delete contactor type not required.

a. Contactors shall be pre-mounted and pre-wired in the enclosure.

b. Contactors shall be remotely mounted inside NEMA rated enclosures, when NEC required GFI protection is provided by Orbit Mfg. in lieu of the Contractor.

3. Control circuit transformer, where required.

4. Pilots lights, indicating Main Power On, Each Circuit On and Control System On.

5. Touch Safe', labeled termination points for control power, remote control connections and cable power connections.

6. The control enclosure shall bear a UL label.

PART 3 EXECUTION

3.1 EXAMINATION

A. Do not begin installation until substrates/underlay have been properly prepared.

B. If substrate/underlay preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.

3.2 PREPARATION

A. Coordinate installation of heating cable with Electrical Contractor, Concrete Contractor and General Contractor.

B. Coordinate installation of heating cable with installation of concrete framework and concrete placement.

C. Inspect the cable and controls upon receipt of shipment, noting any damage and ensuring that the materials received match the order and shipping documents. Compare the labels and the electrical resistance of the heating cables with the shipping documents.

D. Ensure that electrical terminations in the control panel(s) have not been loosened by vibration during shipment.

3.3 INSTALLATION

A. Place cables on the substrate and position sensors as described in the manufacturer's instructions and drawings. Perform electrical resistance testing before, during and after the finish floor installation, per manufacturer's instructions.

B. Perform electrical installations as shown on manufacturer's Drawings.

C. An accurate record or picture of the cable layout for future reference.

D. Install system per manufacturer's instructions.

3.4 INSPECTION AND TESTING

A. Refer to manufacturer's literature for requirements for testing, recording, and documenting resistance and insulation-to-ground readings.

B. Take test readings before, during, and after installation.

C. If problems are found, consult the manufacturer.

D. If problems cannot be corrected, notify Architect before proceeding with any overlay construction.

E. Keep testing records for inspection by the Architect, and for subsequent submittal to the manufacturer to ensure validation of the warranty.

3.5 PROTECTION

A. Protect installed products until completion of project.

B. Optionally repair or preferably damaged products before Substantial Completion.

3.6 DOCUMENTATION AND TRAINING

A. Manufacturer shall present the Owner with equipment start-up and operational documentation to assist in proper operation and to maintain specified design performance.

END OF SECTION