Installation Manual for Snow Melting 24/7 Installation Support • Lifetime Technical Assistance • Free Design Service • www.WarmlyYours.
CONTENTS 1.0 PRODUCT SPECIFICATIONS 1.0 Product Specifications .............................................................................. 1 WarmlyYours Heating Cable is designed for concrete slab floors of new homes, outdoor driveways, walkways, stairs and patios. It is well suited for large areas like basements, garages, additions and driveways. 2.0 Selection of the Heating System.................................................................
4. T ake precautions to avoid damage to Heating Cable during installation. Do not drive over cable. Duct tape the ends of shovels. Do NOT saw expansion joints, without having lines marked off clearly with spray paint, where installer has verified that Heating Cables will not be cut. Do NOT damage Cables with heavy equipment, machinery or vehicles. 2.0 SELECTION OF THE HEATING SYSTEM Selection of your Heating System will depend on the application.
.0 INSTALLATION FOR INDOOR & OUTDOOR SLAB HEATING WARNING 4.1 TEMPERATURE CONTROLLER & SENSOR Heating Cable should be connected to a Ground Fault Circuit Interrupter (GFCI) equivalent having a rated residual operating current not exceeding 30mA. Consult a qualified electrician. We recommend a standard Programmable Thermostat with a temperature sensor specially designed for control of the Heating System.
7. H eating Cable should be laid so that the Cables are equally spaced. The distance between two Heating Cable passes should be according to the spacing calculation determined by WarmlyYours. No heating cable shall be covered by any surfacemounted equipment. 4.3 PRE-INSTALLATION PREPARATIONS 1. Review the custom installation plan for the area requiring the Heating System and verify dimensions listed against your actual field dimensions to ensure they match. 8.
4.5 OPERATING TIPS 1. Energy consumption will vary depending on ambient temperature and building insulation. For lower energy consumption, use a 7-day Programmable Thermostat control. 120 VAC SUPPLY 2. Energy consumption can be minimized by turning the system OFF when heating is not required, but extra time will be required for the floor to warm up once the system is turned ON again. CONTROL PANEL 3.
5. O nce the heater cables are in place, the electrician must route the cold lead(s), (20 ft (6.1m) provided per each Mat / Cable) through rigid metal conduit(s) to get back to an accessible weatherproof junction box(s). The electrician may supply junction boxes which can be accessed from above, so the rest of the box is buried to avoid damage by lawn mowers and/or vehicles. Care must be taken by the electrician so that none of the heated section of Cable enters the conduit(s).
to avoid damaging the Heating Cables with shovels and rakes. Taping up the shovel blades helps make them less sharp. Like with asphalt, it’s recommended that Mats be placed so the mesh faces up, keeping the wire-side-down to help protect it from the shovels. 5.4 INSTALLATION UNDER CONCRETE 1. Ensure that the concrete contractor has installed a solid base of 4” to 8” (102 mm to 203mm) of crushed rock aggregate base and that it is tamped down and ready for the concrete pour. 4b.
7. The paver installer(s) must take care not to walk on the hot-cold factory splice and to avoid damaging the Heating Cables with shovels or rakes. Mats should be placed mesh facing up, keeping the wire-side-down, to help protect them from the shovels. 5.5 INSTALLATION UNDER PAVERS (STONE OR BRICK) 1. Ensure that there is a solid base of 4” to 8” (102mm to 203mm) of crushed rock aggregate base and that it is tamped down and ready to receive the mortar pour. 8.
5.6 INSTALLATION OF SNOW MELTING MAT Use scissors to cut the Mat. NEVER cut the Heating Cable For 180 Degree Turn Turn the Mat Flip / Turn the Mat suitably 180˚ For 90 Degree Turn For other shapes, detach Cable from Mat to required length and lay only Cable. Means of attachment may vary project to project.
6.0 TESTING THE MATS AND CABLE In case of defective material, WarmlyYours obligation will be limited to the repair or supply of new material, free of charge to the customer. 6.1 TEST ONE: INSULATION RESISTANCE (MEGOHMMETER REQUIRED) The warranty does not cover installations made by unqualified persons or faults caused by incorrect design by others / misuse / damage caused by others / damage in transit / incorrect installation and any other subsequent damage that may occur.
8.0 APPENDIX A: WARMLYYOURS SNOW MELTING MATS (SUITABLE FOR ASPHALT, CEMENT AND UNDER PAVERS) Part # Size (ft/m) Voltage Area (ft2/m2) Cable Length (ft/m) Total Ohms Total Watts Watts/ft2 (W/m2) Amps WHMA-120-0205 WHMA-120-0305 WHMA-120-0210 WHMA-120-0310 WHMA-120-0215 WHMA-120-0315 WHMA-240-0210 WHMA-240-0215 WHMA-240-0220 WHMA-240-0230 WHMA-240-0240 WHMA-240-0250 WHMA-240-0310 WHMA-240-0315 WHMA-240-0320 WHMA-240-0330 2’ x 5’ (0.61 x 1.52m) 3’ x 5’ (0.91 x 1.52m) 2’ x 10’ (0.61 x 3.
APPENDIX B: WARMLYYOURS SNOW MELTING CABLES (ALL-PURPOSE FOR ASPHALT, CEMENT AND UNDER PAVERS) Part # Voltage Cable Length Total Ohms WHCA-120-0043 120 42.77’ (13.04m) 28.80 WHCA-120-0063 120 62.78’ (19.14m) WHCA-120-0086 120 WHCA-120-0126 Total Watts Watts/Ft Amps 500 11.69 (38W/m) 4.17 19.20 750 11.95 (39W/m) 6.25 85.54’ (26.07m) 14.40 1,000 11.69 (38W/m) 8.33 120 125.56’ (38.27m) 9.60 1,500 11.95 (39W/m) 12.50 WHCA-120-0188 120 188.34’ (57.41m) 6.40 2,250 11.
APPENDIX C: CROSS-SECTION OF SNOW MELTING CABLE IN ASPHALT 2” to 3”(51mm to 76mm) of finished asphalt. WHCA heater run Wire mesh above or below Heating Cables 1.
Wire mesh above or below Heating Cables 1.
2” to 3” (51mm to 76mm) of base/concrete 3.5”- APPENDIX E: Insulation may be added between base concrete and the crushed rock aggregate 4” (89 -1 Spac 02mm) ing CROSS-SECTION OF SNOW MELTING CABLE IN MORTAR BED UNDER PAVERS 4” to 8” (102mm to 203mm) of crushed rock aggregate base Concrete Block Brick and Stone Pavers must NOT be any thicker than 2.5” (63.5mm).
2” to 3” (51mm to 76mm) of concrete 3” (76 m Spac m) ing APPENDIX F: 4” to 8” (102mm to 203mm) of crushed rock aggregate base CROSS-SECTION OF INDOOR SLAB HEATING CABLE IN CONCRETE Concrete Block Heating Cable run (tied to the rebar or wire mesh with zip ties) 2” to 3” (51mm to 76mm) of finished concrete WSHC heater run Rebar or wire mesh supported by bricks or metal chairs 2” to 3” (51mm to 76mm) of base/concrete 3.
APPENDIX G: SNOW MELT DIAGRAM 240V - TYPICAL LINE DIAGRAM (FOR 6 CIRCUITS/CABLES) WITH PREMIUM CONTROL Heater cable pigtail cold leads to be taken through Installer may use more J-boxes 3/4” (19mm) rigid metal conduit back to J-boxes. outside or inside building.
APPENDIX H: SNOW MELT DIAGRAM 240V - TYPICAL LINE DIAGRAM (FOR 6 CIRCUITS/CABLES) WITH ECONOMY CONTROL Heater cable 20ft cold leads to be taken through Installer may use more J-boxes outside or inside building. Inside Outside 240V CIRCUITS HEATER CABLE / MAT #1 240V CIRCUITS 240V 240V HEATER CABLE / MAT #2 J-BOX 240V 120/240 VAC BREAKER PANEL 3/4” (19mm) rigid metal conduit back to J-boxes.
APPENDIX I: SNOW MELT DIAGRAM 240V - TYPICAL LINE DIAGRAM (FOR 6 CIRCUITS/CABLES) WITH MANUAL CONTROL Heater cable pigtail cold leads to be taken thru 3/4” (19mm) rigid metal conduit back to J-boxes.
APPENDIX J: SNOW MELTING DIAGRAM: 240V - TYPICAL LINE DIAGRAM (FOR 6 CIRCUITS/CABLES) WITH VALUE CONTROL Heater cable pigtail cold leads to be taken thru 3/4” (19mm) rigid metal conduit back to J-boxes.
APPENDIX K: SLAB HEATING DIAGRAM: 240V - TYPICAL LINE DIAGRAM (FOR 6 CIRCUITS/CABLES) WITH THERMOSTAT CONTROL Installation Support • No Nonsense™ Warranty • (800) 875-5285 • www.WarmlyYours.com Heater cable pigtail cold leads to be taken thru 3/4” (19mm) rigid metal conduit back to J-boxes.
WarmlyYours Snow Melting and Slab Heating Warranty WarmlyYours, Inc.
Cable/Mat 1 Cable/Mat 2 Cable/Mat 3 Cable/Mat 4 Cable/Mat 5 Material Depth Above Cable [1.5” (38mm) Min.]: Installation Support • No Nonsense™ Warranty • (800) 875-5285 • www.WarmlyYours.com *If at any time a reading does not exceed 10 Megohms, please halt installation and contact WarmlyYours. Megohms readings are done across the assembly’s green, ground wire to each conductor separately. Remember to keep a copy of this form with your warranty.
