The world’s best-selling electric floor heating brand™ La marque de plancher chauffant la plus vendue au monde™ 120V & 240V NADCM-C Loose Cable Installation Manual Manuel d’Installation du Câble pour Plancher Chauffant IMPORTANT Read this manual before attempting to install your Warmup heater. Incorrect installation could damage the heater and will invalidate the warranty. IMPORTANT Lisez ce manuel avant de commencer l’installation de la maille chauffante.
Contents 3 Before you Begin Product Information 4 Area Guide 5 - 6 Do’s and Dont’s 7 Heating Cable Specification 8 Heating Cable Selection Thermal Insulation Floor Coverings 9 Subfloor Preparation 10 Controlling Your System 11 Wiring Diagram 120V 12 Wiring Diagram 240V 13 Electrical Provisions 14 Testing the System 15 Planning your Installation Installing the Fixing Guides Spacing Guide 16 Heating Cable Installation 17 Installing the Floor Sensor Installing the Thermostat 18 F
Before you Begin Thank you for purchasing the Warmup® NADCM-C Loose Heating Cable. This manual contains IMPORTANT information regarding the safe use and installation of your heating cable. Please read through the entire manual carefully before you install or use the product. Double check your measurements and ensure that you have the correct heating cable for the area you wish to heat.
Area Guide Ensure that you have the correct heater wire for the area you wish to heat using the table below. 240 Volt 120 Volt Heated Area, ft2 4 PRODUCT CODE Cable Length ft NADCM-C-120-65 16.7 4 6 NADCM-C-120-130 33.1 8 11 NADCM-C-120-195 49.9 12 17 NADCM-C-120-260 66.3 17 22 NADCM-C-120-325 83.0 21 28 NADCM-C-120-390 99.4 25 33 NADCM-C-120-525 132.8 33 44 NADCM-C-120-655 166.0 42 55 NADCM-C-120-785 199.1 50 66 NADCM-C-120-920 232.
Do’s and... DO carefully read this installation manual before commencing installation. DO When loose laying the cable on the floor, maintain a consistent cable spacing of no less than 3” and no more than 4”. DO make sure all electrical work is done by qualified persons in accordance with local building and electrical codes, the National Electrical Code (NEC), especially article 424, Part V of the NEC, ANSI/NFPA 70, for the US and Canadian Electrical Code, Part 1, for Canada.
...Dont’s DON’T allow the heating cables on the mat to cross over or touch each other at any point as this can cause the cable to overheat. Always use the fixing strips to avoid this. DON’T cut or shorten the heating cable at any time. DON’T install the heating cables with any staples or other metal fixings that can damage the heating cable. DON’T store tiles, sharp or heavy objects on any of the wiring while tiling or bang a trowel on the installation area to remove excess mortar from the trowel.
Heating Cable Specification Note: The heating cables spacing must be no less than 3” at all times. The maximum area loading MUST NOT exceed 15w/sq ft. 3.5” Spacing Area (ft²) 120 Volt Model Length (ft) Amps (A) Resistance (Ω) 5 NADCM-C-120-65 16.7 65 0.5 221.5 10 NADCM-C-120-130 33.1 130 1.1 110.8 15 NADCM-C-120-195 49.9 195 1.6 73.8 20 NADCM-C-120-260 66.3 260 2.2 55.4 25 NADCM-C-120-325 83.0 325 2.7 44.3 30 NADCM-C-120-390 99.4 390 3.3 36.
Heating Cable Selection The table below can be taken as a general guide. Actual requirements will depend on the floor construction, type of floor coverings, insulation levels etc. The heating cable selection will depend on the application. Application W/sq ft New floors in builds with high levels of insulation 13W/sq ft Wooden floors 11W/sq ft Wet areas (showers, bathrooms, steam rooms etc) 13W/sq ft Note: The UL Listing for this product covers use in wet locations for CANADA only.
Subfloor Preparation Ensure that the subfloor is smooth, dry and free from dust. Visually check that there are no objects on the floor that might damage the heater. Where necessary an appropriate smoothing compound should be applied and allowed to cure. If the cable is being fitted to a solid floor it is essential that the concrete slab has been allowed to cure. If using the Warmup insulation boards use a suitable cement based adhesive and screws to fix boards to the subfloor as per the instructions.
Controlling Your System Warmup only recommends listed or UL certified programmable thermostats designed for use with underfloor heating to control the Warmup loose heating cables. When using multiple loose heating cables you can connect them in parallel to the same thermostat. Check with your installer or call Warmup for circuit sizes and maximum loads. The thermostats come with a 9’ sensor cable to detect the temperature under the floor finish.
Wiring Diagram 120V 12 CSA/CEC or NEC (ground braid) (green/bare) Live (hot) Neutral Max 15 amps (yellow) Canadian Electrical Code, part 1 in Canada or the National Electrical Code in the USA, especially Article 424, Part V of the NEC ANSIINFPA 70. 12 CSA/CEC or NEC (ground braid) Live (hot) Neutral 110 120V (yellow) Canadian Electrical Code, part 1 in Canada or the National Electrical Code in the USA, especially Article 424, Part V of the NEC ANSIINFPA 70.
Wiring Diagram 240V CSA/CEC or NEC (green/bare) (ground braid) Live (hot) Live (hot) Max 15 amps Canadian Electrical Code, part 1 in Canada or the National Electrical Code in the USA, especially Article 424, Part V of the NEC ANSIINFPA 70. CSA/CEC or NEC (ground braid) Live (hot) Live (hot) Canadian Electrical Code, part 1 in Canada or the National Electrical Code in the USA, especially Article 424, Part V of the NEC ANSIINFPA 70.
Electrical Provisions For each Warmup loose heating cable you install, you will have 1 unheated lead running from the floor to the thermostat’s electric connection. The joint connecting the unheated lead to the heating cable must be at least 2 inches from the wall and placed in a position to be covered by a thinset/adhesive under the final floor covering. THIS JOINT SECTION MUST NEVER BE PLACED IN THE DRYWALL.
Testing the System Each and every Warmup loose heating cable is subjected to careful testing before it is shipped from the factory. However, damage does sometimes occur in storage or transit, and sometimes during installation. We strongly recommend you test your heaters: After unpacking them but before you install them, and After you have installed them but before you install the floor covering (i.e. while the cables are still exposed), and After installation of the final floor covering.
Planning Your Installation Before installing, draw an installation plan showing the placement of the fixings guides, heating cables, floor sensor, and junction box or boxes. It is important to mark the location of the cold lead joint on the plans. The cold lead is the non-heating portion of the cable that will run in the wall to connect the system to the thermostat. The heating cable shall not extend beyond the room or area in which it originates.
Heating Cable Installation Before you start laying the underfloor heating cable ensure that the heating cable(s) are tested. Gently pull the unheated lead from the box. Do not remove the spool from the box as this will cause the heating cable to twist. After 10 feet of cable has been removed, you will reach the point at which the unheated lead joins the heating cable. The joint should be taped to the floor at the start point. Ensure that the factory joint lays flat on the floor.
Installing the Floor Sensor The floor sensor is used for temperature regulation of the floor surface. The end of the probe wire contains a capped sensor that should be centered between two heating cables at least 12” (305mm) into the heated area. The sensor wire MUST NOT touch or cross over the heating cables. Depending on the requirements of the tiler, it may be necessary to chisel out short channels in the subfloor to minimize the increased height presented by the floor probe.
Floor Coverings - Tiles & Stone When installing the heating cable under tile or stone flooring choose one of the following methods: 1. Single Layer Method: Warmup does not recommend this method as it is impractical to lay tiles and can cause damage to the heating cables. However, when laying the tiles under the one-step method, start by applying thinset over the cable with the flat side of the trowel. Then add thinset on top of that with the notched side to prepare for the tile. 2.
Final Floor finish - Hardwood Flooring STEP 1: Wooden Sleepers/ Strips Installation: Fix the wood sleepers (recommended 1” wide x 3/8” thick or similar) perpendicular to the planned direction of hardwood board. On the plywood subfloor leave a sufficient space at the end of each wooden sleeper to allow the cable to go from one section to the other. The sleepers are fixed in such a manner that they create a gap between 12-16” between two sleepers in which the heating cable can be installed.
Points to Remember Ensure that there are no air gaps during application of the cement/mortar cement based adhesive/tile adhesive/thinset or self-leveling compound. Ensure the entire heating cable, factory splices and thermostat floor sensor are embedded in the cement mortar. The choice and application of building materials should be in accordance with building materials manufacturer’s instructions.
Troubleshooting CAUTION: TURN OFF THE POWER SUPPLY BEFORE TROUBLESHOOTING If the system fails to heat, check that the GFCI (Ground Fault Circuit Interrupter) has not been tripped. If the GFCI has tripped on the thermostat, this will be indicated with red “test” light on the thermostat. If the thermostat does not have a GFCI, check that the GFI on the breaker panel has not tripped. Check for continuity and resistance level with an ohmmeter and compare the reading with the resistance recorded on the UL label.
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Control Card Record the resistance readings in the table below. For warranty purposes, the resistance table must remain with the end user. Heater model number Resistance (ohms) Before During After Insulation Resistance (M ohms) Before During After Installation Address : Date of Installation: Electricians Details Name: Signature: Note: Ensure that this card is completed and signed by the authorized electrician and safely stored along with any floor plans.
Floor Plan 24
Warranty WARMUP 30-YEAR WARRANTY Models: NADCM-C heaters sold by Warmup, Inc. THE WARMUP 30-YEAR WARRANTY DOES NOT EXTEND TO THERMOSTATS, WHICH ARE COVERED BY A THREE-YEAR GUARANTEE FROM THE DATE OF ORIGINAL PURCHASE. GOVERNING LAW: unless otherwise governed by applicable state law, this warranty shall be interpreted and enforced in accordance with the laws of the State of Connecticut. This 30-Year Warranty applies: 1. Only to the original homeowner(s) from the date of purchase 2.
Warranty Registration Form Thank you for purchasing a Warmup Heating System. You can register your system online on www.warmup.com or www.warmup.ca. Alternatively you can complete, detach and mail in this Warranty form to: US: Warmup Inc., 52 Federal Road, Unit 1F, Danbury CT, 06810 or fax it to 888-927-4721 CA: Warmup Inc., 4 Robert Speck Parkway, Suite 1500, Mississauga ON, L4Z 1S1 or fax it to 905-366-7324.
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Warmup Offices - North America US: Warmup Inc 52 Federal Road Unit 1F Danbury, CT 06810 W: www.warmup.com E: us@warmup.com T: (888) 927-6333 F: (888) 927-4721 Canada: W: www.warmup.ca E: ca@warmup.com T: (888) 592-7687 F: (888) 927-4721 Complete and submit the warranty form online at www.warmup.com (US) or www.warmup.
