Warmup DCM-PRO The only UL-Approved Membrane System in North America Installation Manual for NADCM-C Series of Heaters Technical Helpline US:1-888-927-6333 CA:1-888-592-7687 IMPORTANT! Please read this manual before attempting to install your Warmup product. Complete and submit your warranty form online at www.warmup.com or www.warmup.ca Electric Heating System www.warmup.com www.warmup.
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Contents Quick Install Guide ������������������������������������������������������������������� 4 Components Required for Installation ������������������������������������� 6 Do’s & Don’ts ���������������������������������������������������������������������������� 7 Step 1 - Electrical Supply �������������������������������������������������������� 9 Step 2 - Subfloor Considerations ������������������������������������������ 12 Step 3 - Subfloor Preparation �����������������������������������������������
Quick Install Guide Quick Install Guide - The full installation instructions in this manual must be followed. 1 • Make electrical provision for the heater (4 “ x 4” x 2 3/4” deep UL/cUL certified electrical back boxes, conduit). 3 • We recommend installing Warmup insulation boards for optimum performance. • Install perimeter strip around the perimeter of the room to allow for differential movement between finished floor level and walls.
Quick Install Guide 6 • Install the heating cable at the chosen spacing. • Maintain a minimum 2 peg (2 3 /8”) perimeter spacing. 8 7 • Channel a groove in the membrane and subfloor for the coldtail & termination joints, enabling them to fit flush with the top of the membrane. DO NOT tape over these joints! • Install the floor sensor centrally between two runs of the heater.
Components Required for Installation Components available from Warmup DCM-PRO Fleece membrane (Fleece backed) DCM-PRO Peel and Stick membrane (Self-adhesive backing) NADCM-C Cable Warmup Insulation Boards UL/cUL Certified Thermostat & Floor Sensor DCM-PRO Perimeter Strip DCM-PRO Waterproofing Kit Additional components needed as part of your Warmup heating installation: Digital multi-meter required for testing the resistance of the heater and floor sensor. Electrical tape to secure the floor sensor.
Do’s & Don’ts DO Ensure that thinset used is compatible with underfloor heating and suitable for application with non porous materials such as the DCM-PRO membrane. Maintain a spacing that produces no more than 16 W/ft² of heat input into the floor.
Do’s & Don’ts DON’T Cross the cable over another run, over coldtails or the floor sensor. This will cause overheating and will damage the cable. Cut or shorten the heater at any time. Install parallel runs of heating cable closer than 2" if using cable fixing strips or 2 pegs (2 3/8") if using the DCM-PRO membrane. Refer to the Layout Planning page for further guidance. Install the heater with staples or other metal fixings that can cause damage. Store tiles, sharp or heavy objects on top of the heater.
Step 1 Electrical Supply Warmup Thermostat Coldtail installed in UL/cUL certified conduit. Coldtail joint recessed into the membrane & subfloor. Coldtail connected to the thermostat Termination Joint recessed into the membrane & subfloor. Floor Sensor 12” into heated area. Floor sensor connected to thermostat The installation of electrical systems presents risks of fire and electrical shock which can result in personal injury.
Step 1 Electrical Supply Typical Wiring Diagram 120V 12 CSA/CEC or NEC (ground braid) (green/bare) Live (hot) Neutral (yellow) 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 ANSI/NFPA 70. Undertile heaters are to be installed in parallel across the load terminals of the thermostat or contactor and must not exceed their rated load.
Step 1 Electrical Supply Typical Wiring Diagram 240V CSA/CEC or NEC (green/bare) (ground braid) Live (hot) Live (hot) 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 ANSI/NFPA 70. Undertile heaters are to be installed in parallel across the load terminals of the thermostat or contactor and must not exceed their rated load.
Step 2 Subfloor Considerations Subfloor Preparation Subfloors previously covered in vinyl, cork or carpeting: all old flooring and glues must be removed. If there is bitumen as a damp proofing layer, it must be covered with a minimum 2” of sand/cement screed or overboarded with 3/8” Warmup Insulation Boards, taking care not to puncture the bitumen coating. The screed must be fully cured and dry before proceeding. If using other damp proofing or tanking systems, contact the manufacturer for advice.
Step 2 Subfloor Considerations In addition to the general subfloor preparation instructions on the previous page, wood subfloors should be prepared for tiling in accordance with local tiling standards such as ANSI A108 series.
Step 2 Subfloor Considerations Fixing Strips Concrete Subfloors 1 CONCRETE SUBFLOOR (Recommended) 2 3 5 4 6 7 1 CONCRETE SUBFLOOR 2 3 5 14 1 Floor Finish 2 3/8” Minimum Thinset or levelling compound 3 Warmup DCM-PRO Cable 4 Warmup Fixing Strips 5 Warmup Insulation Board 6 1/4” Minimum Thinset 7 Subfloor 4 1 Floor Finish 2 3/8” Minimum Thinset or levelling compound 3 Warmup DCM-PRO Cable 4 Warmup Fixing Strips 5 Subfloor
Step 2 Subfloor Considerations Wood Subfloors 1 WOOD SUBFLOOR (Recommended) 2 3 6 4 5 8 7 9 1 WOOD SUBFLOOR 2 5 3 4 7 6 1 Floor Finish 2 3/8” Minimum Thinset or levelling compound 3 Warmup DCM-PRO Cable 4 Warmup Fixing Strips 5 Warmup Insulation Board 6 1/4” Minimum Thinset 7 Floor Deck 8 Joists 9 Insulation 1 Floor Finish 2 3/8” Minimum Thinset or levelling compound 3 Warmup DCM-PRO Cable 4 Warmup Fixing Strips 5 Floor Deck 6 Joists 7 Insulation 15
Step 3 Subfloor Preparation 1 • Ensure the subfloor is dry and smooth. If necessary an appropriate smoothing or levelling compound should be applied. 3 • Recommended Step - Install Warmup® insulation boards over the subfloor referring to their installation instructions. Warmup insulation boards are made of extruded polystyrene, faced on both sides with a fibreglass mesh embedded into a thin cement polymer mortar. They will help reduce the heat up times of your system for optimal performance.
Alternate Installation Installing Using Spacing Strips When using the 12” spacing strips to secure the cable to the subfloor, use the following provisions to ensure proper spacing of the cable. The fixing guides included in the kit are 12” long with 1” spacing guides. The perimeter spacing strips should be installed a minimum of 3” away from the wall perpendicular to the planned cable runs. (Additional stabilizing guides could be laid 40" apart across the floor).
Alternate Installation Installing Using Spacing Strips 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 centred between two heating cables at least 12” into the heated area. The sensor wire MUST NOT touch or cross over the heating cables.
Step 4 Lay DCM-PRO Membrane 1 • Measure and cut a length of membrane to suit your room using a utility knife and/or scissors. 2A • If installing DCM-PRO Fleece membrane apply a thinset layer to the substrate using a ¼” x ¼” square notch trowel. • Position the membrane, fleece side down into the thinset. • Embed the membrane into the thinset using a float/roller removing any air pockets.
Step 5 Layout Planning A plan of the cable layout is required as part of the control card so that any cutting or drilling after tiling will not result in injury or damage to the heater. Before you begin • The standard (UL-Approved minimum) spacing is 3 pegs (3 5/8") between parallel heating cables. • DO NOT install parallel runs of heating cable closer than 2" if using cable fixing strips or 2 pegs (2 3/8") if using the DCM-PRO membrane.
Step 5 Layout Planning DCM-PRO Peg Spacing Diagrams At a 3 peg spacing the specific heat load of the DCM-PRO system is ~ 13 W/ft². By adjusting the cable spacing, the installation can be customized to suit both the floor coverage and heat load requirements. When installing the cable using the DCM-PRO membrane, maintain a 2 peg (2 3/8”) perimeter spacing, between itself and the perimeter or any unheated areas. 2-3 Peg (~ 3") Spacing ~16 W/ft² Primarily used in areas requiring a rapid heat-up time.
Step 5 Layout Planning DCM-PRO - 120 Volt Spacing Guide Peg Spacings & Areas Covered (ft²) PRODUCT CODE Cable length (ft) ~16 W/ft² ~13 W/ft² ~11 W/ft² NADCM-C-120-65 16.7 4 5 6 7 NADCM-C-120-130 33.1 8 10 12 13 2-3 Pegs (~ 3") 3 Pegs (3 5/8") 3-4 Pegs (~ 4 1/4") 4 Pegs (4 7/8") ~10 W/ft² NADCM-C-120-195 49.9 13 15 18 20 NADCM-C-120-260 66.3 17 20 23 27 NADCM-C-120-325 83.0 21 25 29 33 NADCM-C-120-390 99.4 25 30 35 40 NADCM-C-120-525 132.
Step 5 Layout Planning Fixing Strip - 120 Volt Spacing Guide Peg Spacings & Areas Covered (ft²) 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 NADCM-C-120-525 99.4 132.8 25 33 33 44 NADCM-C-120-655 166.0 42 55 NADCM-C-120-785 199.1 50 66 NADCM-C-120-920 232.2 58 77 NADCM-C-120-1050 265.4 66 88 NADCM-C-120-1180 298.
Step 5 Layout Planning Example installation diagrams 24 Standard room Bathroom Room with recesses Kitchen
Step 6 Install DCM-PRO Cable 1 • Measure and record the resistance of the heating cable in the “Resistance Before” column of the control card, supplied as part of this installation guide. • Stop installation immediately and contact Warmup if its resistance falls outside the range set out in the Reference Resistance Band table. 3 • Begin laying the heating cable, pressing it between the pegs. • Follow the installation layout created in Step 5 to complete the cable placement.
Step 6 Install DCM-PRO Cable 5 • At the end of the heating cable, you will find a termination joint. As with the manufactured joint at the beginning of the heating cable, this joint will have to be cut into the membrane so that it sits at the same height as the heater. • DO NOT tape over the termination joint, it must be in direct contact and fully embedded within the thinset or levelling compound being laid over the heating cable.
Step 7 Select Floor Covering For floor finishes other than tiles a single layer of self levelling compound is required (minimum thickness: 3/8” above the membrane) over the heater which is suitable for use with underfloor heating and plastic underlayments. You must ensure the entire heater, including manufactured joints is encased in the levelling compound.
Waterproofing There are instances where waterproofing will be required, such as in wetrooms, where there will be significant exposure to water. If using a proprietary waterproofing system, a levelling compound should first be laid over the Warmup DCM-PRO system to provide a finished surface to install over. Follow the steps below when using the Warmup DCM-PRO waterproofing products to waterproof the installation: 1 • Cut the perimeter strip to the same level as the DCM-PRO membrane.
Waterproofing 5 • To waterproof the joints between membrane runs and over the cable joints, apply a 3/8" layer of waterproof thinset, 4" either side of the joint, making sure the cavities of the membrane are fully filled. 6 • Cut a length of Warmup waterproof tape to suit and press into the thinset using a trowel, removing any air gaps or creases taking care not to damage or dislodge the cable.
Step 8 Lay Floor Covering Underfloor heating performs the most efficiently with conductive, low resistance floor finishes such as stone and tiles. The maximum thermal resistance of the floor must not exceed a thermal insulation “R” value of 1ft²·°F·h/Btu. Tiled Floors 1 • Cover the installation with a minimum 1/4" full bed of modified thinset. Take care not to damage or dislodge the heating cable.
Step 8 Lay Floor Covering Other Floor Coverings 1 NOTE: Before installing the floor finish its suitability for use with underfloor heating and its maximum operating temperature should be checked against required operating conditions. • If you are planning to install wood, carpet or vinyl over the heater a single layer of self levelling compound is required (minimum thickness: 3/8” above the membrane) over the heater. You must ensure that all heating cables are completely covered.
Step 9 Connect the Thermostat Install the thermostat in accordance with its installation instructions Instructions for fitting Warmup® Thermostats can be found inside the thermostat box. The UL/cUL certified thermostat must be connected to the main electrical supply via a fuse or circuit breaker in accordance with the National Electrical Code.
Troubleshooting HEATING ISSUE 1 - The floor does not heat up Instructions which are shaded grey must completed by a qualified electrician END USER With the thermostat in manual mode set the temperature to 83°F. Is the thermostat indicating that it is sending power? ELECTRICIAN NO Can you hear the relay click on when the thermostat is calling for heat? YES Are the connections on the back of the thermostat made in line with the wiring diagram? NO YES YES NO Measure the output voltage.
Troubleshooting HEATING ISSUE 2 - The heater trips the GFCI Instructions which are shaded grey must completed by a qualified electrician ELECTRICIAN Are the connections on the back of the thermostat made in line with the wiring diagram? YES NO Conduct a resistance & insulation resistance test.
Performance Troubleshooting My floor is getting too hot 1. The floor temperature settings on the thermostat may be incorrect. Check the thermostat settings ensuring that it is controlling the floor surface temperature and that the set target and limiting temperatures are correct. 2. The floor sensor may be poorly positioned, if so the thermostat will be displaying a floor temperature that is not indicative of the floor surface temperature. Recalibrate the floor sensor in the thermostat settings. 3.
Performance Troubleshooting My floor does not get up to temperature 4.The heating system may be uninsulated. If the heater has not been installed over a layer of Warmup Insulation Boards, it will be actively heating the subfloor as well as the floor finish. The warm up period of the floor will therefore be slower as the system is heating a much greater mass. It could take several hours if it is installed directly on a thick layer of uninsulated concrete.
How to test the heater & floor sensor The heaters and floor sensors must be tested before they are laid, once they have been laid but before the tiles or levelling compound has been laid and again before they are connected to the thermostat. The resistance (ohms) of each heater should be measured. You should carry out the following tests and should expect the results detailed below: • Heating Cable Resistance Test Set a multimeter or ohmmeter to record resistance in the range of 0-500Ω.
Layout Plan NOTE: Draw a plan showing the layout and location of the heating cable(s) 38
Control Card Heater Location ............................. ............................ Total Wattage ................................ WARNING Radiant Floor Heating Systems - Risk of electric shock Electric-wiring and heating panels contained within the floor. DO NOT penetrate with nails, screws, or similar devices. DO NOT restrict the thermal emission of the heated floor. ATTENTION: DO NOT cut or shorten the heating element.
Warranty Please register you warranty online at warmup.com WARMUP 30-YEAR WARRANTY The NADCM-C Cable is guaranteed for 30 Years under floor covering which it is fitted when installed in combination with the DCM-PRO membrane except as provided below (and your attention is drawn to the exclusions listed at the end of this guarantee). If installed separately NADCM-C cable is guaranteed for 10 Years, the DCM-PRO membrane is guaranteed for 5 Years.
Warranty 3. Damage as a result of floods, fires, winds, lightning, accidents, corrosive atmosphere or other conditions beyond the control of Warmup, Inc. 4. Use of components or accessories not compatible with Warmup heaters 5. Warmup products installed outside the United States or Canada. 6. Parts not supplied or designated by Warmup, Inc. 7. Damage or repair required as a result of any improper use, maintenance, operation or servicing. 8.
Technical Specifications TECHNICAL SPECIFICATIONS - DCM-PRO MEMBRANE THICKNESS 1/4" COMPOSITION DCM-PRO Fleece membrane: POLYPROPYLENE MEMBRANE WITH FLEECE BACKING DCM-PRO Peel and Stick membrane: POLYPROPYLENE MEMBRANE WITH SELF-ADHESIVE BACKING COLOR RED SPACING 3 5/8" & 4 7/8" SIZE 2’6” x 3’3” sheet 46’7” x 3’3” roll TECHNICAL SPECIFICATIONS - DCM-PRO CABLE OPERATING VOLTAGE 120 V and 240 V: 60Hz COLOR BLUE THICKNESS 3/16" OUTPUT RATING ~13 W/ft² (3 PEG - 3 5/8”) INNER INSULATION ECTFE OUTER INSULATION
Technical Specifications Cable size guide 240 VOLT 120 VOLT NADCM-C Cable REFERENCE RESISTANCE BANDS (Ω) PRODUCT CODE Heated Area (ft²) Power (W) Load (A) Resistance (Ω) NADCM-C-120-65 5 65 0.5 221.5 210.4 - 232.6 NADCM-C-120-130 10 130 1.1 110.8 105.3 - 116.3 NADCM-C-120-195 15 195 1.6 73.8 70.1 - 77.5 NADCM-C-120-260 20 260 2.2 55.4 52.6 - 58.2 NADCM-C-120-325 25 325 2.7 44.3 42.1 - 46.5 NADCM-C-120-390 30 390 3.3 36.9 35.1 - 38.7 NADCM-C-120-525 40 525 4.
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 W: www.warmup.ca T: (888) 592-7687 F: (888) 927-4721 The WARMUP word and associated logos are trade marks. © Warmup Inc. 2020 – Regd. TM Nos. 1257724, 4409934, 4409926, 5265707. E & OE. Electric Heating System www.warmup.com www.warmup.ca Warmup - IM - NA - DCM PRO - v1.
