STEP Snowmelt Installation Manual Download | Manualshive

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P a g e

Copyright ©Electro Plastics, Inc. / STEP Warmfloor

®

September 2015

DC CONTROLLER WIRING DIAGRAM

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Summary of Contents for Snowmelt

Page 1: ...STEP Snowmelt Installation Manual Low Voltage System ...

Page 2: ...WATTAGE 7 WIRE GAUGE AND LENGTH 7 PRODUCT SPECIFICATIONS 8 CONSTRUCTION 8 APPLICATION 8 HEATING ELEMENT MODELS 9 INSTALLATION 10 1 PLAN 10 2 INSTALL 10 3 CONNECT 11 4 COVER 11 MAKE THE CONNECTIONS 12 SYSTEM DESIGN 13 ELECTRICAL GUIDELINES 14 LOW VOLTAGE ELECTRIC RADIANT HEATING EQUIPMENT 14 AC POWER SUPPLY WIRING DIAGRAM 15 DC CONTROLLER WIRING DIAGRAM 16 FAIL SAFE WIRING 17 CONTROLS 18 STEP TOUCH...

Page 3: ...talled under concrete or selected other surfaces STEP Snowmelt heating element is made of a homogeneous semi conductive polymer which by nature is self regulating This self regulating positive temperature coefficient PTC Nano technology allows them to heat with maximum power in cold environments and use less electricity as their temperature increases This minimizes power consumption and reduces op...

Page 4: ...vided with the heating product and should be filled out and affixed in the place indicated o CAUTION label is to be attached to the junction box o WARNING label is to be attached to the service panel WARNING HEATING ELEMENTS SHOULD NOT TOUCH CROSS OR OVERLAP AT ANY POINT DO NOT ENERGIZE ROLLED UP HEATING ELLEMENTS DO NOT NAIL OR STAPLE ANY METALLIC OBJECT THROUGH TERMINALS AND BUS BRAIDS HEATING E...

Page 5: ...e and length according to load and distance to the power source o Size of AC power supply or DC controller and load distribution on the interface boards SUPPLIED PARTS STEP Heating Element STEP AC Power Supply STEP DC Controller MEP 30 70W 24V MEP 23 80W 24V EPI LX R 500W 24V EPI LX R 1000W 24V EPI LX R 1500W 24V EPI DC M1 EPI DC M2 EPI DC M3 EPI DC M4 EPI DC M5 EPI DC M6 EPI DC M7 EPI DC M8 STEP ...

Page 6: ...rcuit in the power supply All elements must be connected in parallel LOW VOLTAGE DC CONTROLLER DC CONTROLLER DIMENSIONS CHANNELS INPUT VOLTAGE OUTPUT CIRCUIT BREAKER Model Height inch Width inch Length inch No off Volts Typical Operating Current Max Amperage per Channel EPI DC M1 2 780 8 720 2 795 1 20 30 VDC 1 x 20A 1 x 25A EPI DC M2 2 780 8 720 4 085 2 20 30 VDC 2 X 20A 2 x 25A EPI DC M3 2 780 8...

Page 7: ...cluded per circuit in feet Power Watts Wire Gauge and Wire Length in Feet 14 AWG 12 AWG 10 AWG 8 AWG 6 AWG 4 AWG 60 VA 40 63 100 159 252 401 90 VA 27 42 67 106 168 268 120 VA 20 32 50 80 126 201 150 VA 16 26 40 64 101 161 180 VA 14 21 34 53 84 134 210 VA 12 18 29 46 72 115 240 VA 10 16 25 40 63 101 270 VA 9 14 23 36 56 90 300 VA 8 13 20 32 51 81 330 VA 8 12 19 29 46 73 360 VA 7 11 17 27 42 67 390 ...

Page 8: ...a heating element that features a solid and homogeneous construction which is chemically inert The 12 and 9 wide elements normally come slotted unless specified with no slots APPLICATION Snow and Ice Prevention System Suitable for ice and snow prevention on concrete stone or asphalt walkways and driveways commercial and residential The element is not made to be exposed to weather MEP 30 70W MEP 23...

Page 9: ...d spool length of 174ft 53m Output wattage see power output curve 70W 24 W ft 78 7 W m 32o F 0o C 80W 27 W ft 88 6 W m 32o F 0o C Watt density MEP 30 70W 24V 24 W ft2 258 W m2 32 F 0 C MEP 23 80W 24V 36 W ft2 387 W m2 32 F 0 C Supply voltage 24V AC or DC Bus braid 15 AWG tinned copper flat braid Dielectric liner Thermally bonded to heating element Minimum bending radius 3 32 2 5mm 40 F 4 C Maximum...

Page 10: ...all days Areas with frequent snowfall may benefit from the thermal bed concept which is a low power deicing system that is switched on prior to frost and kept energized all winter Wherever underlying soils are susceptible to frost pavements will suffer damaging effects from frost heave and spring breakup There are different techniques to reduce frost action such as o Removing frost susceptible soi...

Page 11: ...ce the power supply vertically using rubber bumpers between the back heat sink plate and wall for better cooling and quiet operation Connect the line voltage to a two pole on off switch Use stranded wires from the switch to the power supply To make the system operational connect the three signal wires COM TRG and 24V from the interface board terminals to the thermostat The system will switch on wh...

Page 12: ...and along the bus braid above the angled score with a utility knife Bend the element where the cuts are made and pull oﬀ the corners to remove the surplus of plastic Make sure that the bus braid is not cut or damaged Should this occur re cut the element and re strip the bus braid Repeat on the other side Seal all connections by using the required sealant tape on the connector side of the element C...

Page 13: ...e expansion and contraction in substrates Place a low water absorption and high compressive strength insulation e g Styrofoam Hi or equivalent vertical along the walls of a trench or foundation to protect against frost penetration Care should be taken to prevent vehicles and heavy equipment from bearing directly on the vertical insulation Make sure that the insulation is properly butted together t...

Page 14: ...t between the source and the heating equipment and its supply shall be listed and comply with the applicable section of the NEC for the source used 3 Listing Required Low voltage heating systems shall comply with A and B A Listed System Low voltage heating systems shall be listed as a complete system The heating portion of the product power supply interconnecting wiring and fittings shall be liste...

Page 15: ...15 P a g e Copyright Electro Plastics Inc STEP Warmfloor September 2015 AC POWER SUPPLY WIRING DIAGRAM ...

Page 16: ...16 P a g e Copyright Electro Plastics Inc STEP Warmfloor September 2015 DC CONTROLLER WIRING DIAGRAM ...

Page 17: ...is used whenever there may be a risk of damaging the bus braids located on each side of the heating elements Supplying electricity from both ends of an element eliminates the possibility of arcing from a damaged bus braid Not only is this wiring method safer it reduces voltage drop and makes the element more powerful ...

Page 18: ...SOR The external temperature sensor is installed in the concrete in a conduit between the heating elements SETTINGS Set dip switches in the back to snowmelt mode Pos 1 C or F displays Celsius or Fahrenheit Pos 2 or DIM display is lit or dimmed Pos 3 to EXT displays the external temperature when an exterior temperature sensor is attached Pos 4 to SM snowmelt with remote external temperature sensor ...

Page 19: ...age of the STEP elements and accessories as recommended It shall be Buyer s and End User s duty to read and follow carefully the STEP Installation Manual Technical assistance services e g design and layout are to be used as GUIDELINES ONLY as each application is specific to local conditions and construction Dissatisfaction due to improper Installation of the floor covering All floor covering shall...

Page 20: ...RO PLASTICS SHALL NOT BE LIABLE FOR ANY LOSS CLAIM EXPENSE OR DAMAGE CAUSED BY CONTRIBUTED TO OR ARISING OUT OF THE ACTS OR OMISSIONS OF BUYER OR THIRD PARTIES WHETHER NEGLIGENT OR OTHERWISE IN NO EVENT SHALL ELECTRO PLASTICS LIABILITY FOR ANY CAUSE OF ACTION WHATSOEVER EXCEED THE COST OF THE PRODUCT GIVING RISE TO THE CLAIM WHETHER BASED IN CONTRACT WARRANTY INDEMNITY OR TORT INCLUDING NEGLIGENCE...

Page 21: ... Off STEP Element Model No MEP W 24V Total Length Installed Linear Feet Transformer Model No EPI LX R W 120V 208V 230V MEASUREMENT INSTRUCTIONS Measure primary and secondary volts and amps at the transformer terminals One sheet per transformer Installed measured by ________________________________________ Name Date ________________________________________ Signature ...

Page 22: ...ker in power supply push plunger in until it stays in Make sure the thermostat settings are correct and that the thermostat calls for heat Set the temperature to maximum and wait a couple of minutes for the system to turn on If this does not work eliminate thermostat disconnect thermostat cable from PCB printed circuit board and put a jump wire from terminal TRG to 24 The load active should now be...

Page 23: ...t the terminal If the voltage is correct and there is no amps the connection between the power supply and heating element is broken If the voltage is correct and the amp reading is low the heating element has been damaged by chemicals or salt etc If the element strip is partly melting snow while other parts on the same element length is cold the element is mechanically damaged If electricity is no...

Page 24: ...tember 2015 APPROVALS AND CERTIFICATIONS UL 1693 3rd Edition UL 5085 1 2 CSA C22 2 No 66 1 2 06 EN 60355 2 96 2009 EN 61558 2 2 2007 Stonestreet Distribution is a master distributor of STEP Warmfloor www ThePerfectHeat com Sales StoneStreetCorp com 401 433 6900 ...

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