XL-Trace Edge System - Raychem.nvent
XL-Trace Edge SystemInstallation and Operation Manual for PipeFreeze Protection and Flow Maintenance
Important Safeguards and WarningsWARNING: FIRE AND SHOCK HAZARD.nVent RAYCHEM heat-tracing systems must be installedcorrectly to ensure proper operation and to preventshock and fire. Read these important warnings andcarefully follow all the installation instructions. To minimize the danger of fire from sustainedelectrical arcing if the heating cable is damagedor improperly installed, and to comply with nVentrequirements, agency certifications, and nationalelectrical codes, ground-fault equipment protectionmust be used on each heating cable branch circuit.Arcing may not be stopped by conventional circuitbreakers. Approvals and performance are based on the use ofnVent-specified parts only. Do not substitute parts oruse vinyl electrical tape. Bus wires will short if they contact each other. Keepbus wires separated. Connection kits and cable ends must be kept drybefore and during installation. The black heating cable core is conductive and canshort. It must be properly insulated and kept dry. Damaged bus wires can overheat or short. Do notbreak bus wire strands when preparing the cable forconnection. Damaged heating cable can cause electrical arcing orfire. Do not use metal attachments such as pipe strapsor tie wire. Use only nVent approved tapes and cableties to secure the cable to the pipe. Do not attempt to repair or energize damaged heatingcable. Remove damaged sections at once and replacethem with a new length using the appropriate nVentRAYCHEM splice kit. Replace damaged connectionkits. Use only fire-resistant insulation materials such asfiberglass wrap or flame-retardant foams.Note: Pipes are shown without insulation for illustrativepurposes only. All pipe installations must be fullycovered with thermal insulation.
Table of Contents12345678910General Information1.1 Use of the Manual1.2 XL-Trace Edge Applications1.3 Safety Guidelines1.4 Approvals11223Installation Guidelines2.1 Heating Cable Storage2.2 Pre-Installation Checks2.3 Heating Cable Installation2.4 Heating Cable Connections444519Thermal Insulation3.1 Insulating the System3.2 Insulation Installation272727Power Supply and Electrical Protection4.1 Voltage Rating4.2 Circuit Breaker Sizing4.3 Electrical Loading4.4 Ground-Fault Protection4.5 Important Power Supply Safeguards303030303031Control, Monitoring and Power Distribution5.1 Control Systems5.2 Power Distribution323235Commissioning and Preventive Maintenance6.1 Tests3838Test Procedures7.1 System Tests7.2 Fault Location Tests404045Troubleshooting Guide50Appendix52Installation and Inspection Records58
11.1General InformationUse of the ManualThis manual covers the installation of nVentRAYCHEM XL-Trace Edge self-regulating heatingcables and connections for commercialconstruction pipe systems in ordinary(nonhazardous) areas. The manual coversgeneral heating cable installation proceduresand specific installation details and showsavailable connection kits for the differentapplications. The manual also discussescontrols, testing, and periodic maintenance.This manual assumes that the proper heattracing design has been completed accordingto the Pipe Freeze Protection and FlowMaintenance Design Guide (H55838). Onlythe applications described in Section 1.2 areapproved by nVent for XL-Trace Edge systemswhen used with approved nVent RAYCHEMconnection kits. The instructions in this manualand the installation instructions included withthe connection kits, control systems, powerdistribution systems, and accessories mustbe followed for the nVent warranty to apply.Contact your nVent representative for otherapplications and products.For additional information, contact:nVent7433 Harwin DriveHouston, TX 77036USATel: 1.800.545.6258Fax: HEMnVent.com/RAYCHEM 1
11.2General InformationXL-Trace Edge ApplicationsXL-Trace Edge heat-tracing systems areapproved and qualified for the applicationslisted below.Freeze protection General water piping. Freeze protection (40 F(4 C) maintain) of insulated metallic or plasticwater piping. Sprinkler piping systems. Freeze protection(40 F (4 C) maintain) of insulated metallicstandpipes and supply piping up to 20".Flow maintenance Greasy waste lines. Flow maintenance (110 F(43 C) maintain) of insulated-grease disposallines. Fuel lines. Flow maintenance (40 F (4 C)maintain) for insulated metallic pipingcontaining #2 fuel oil.For heating cable applications other thanthose listed above, please see your nVentrepresentative or call nVent at (800) 545-6258.1.3Safety GuidelinesAs with any electrical equipment, the safetyand reliability of any system depends on thequality of the products selected and the mannerin which they are installed and maintained.Incorrect design, handling, installation, ormaintenance of any of the system connectionkits could damage the system and may result ininadequate performance, overheating, electricshock, or fire. To minimize these risks and toensure that the system performs reliably, readand carefully follow the information, warnings,and instructions in this guide.Pay special attention to the following: Important instructions are markedImportant Warnings are marked2 nVent.com/RAYCHEMWARNING
11.4General InformationApprovalsXL-Trace Edge heat-tracing systems carryagency approvals for the different applicationsshown in Section 1.2. For detailed informationon which approvals are carried for the specificapplication, refer to the Pipe Freeze Protectionand Flow Maintenance design guide (H55838).WarrantynVent standard limited warranty applies to allproducts.An extension of the limited warranty period toten (10) years from the date of installation isavailable if a properly completed online warrantyform is submitted within thirty (30) days from thedate of installation. You can access the completewarranty on our website at nformation.nVent.com/RAYCHEM 3
22.1Installation GuidelinesHeating Cable Storage Store the heating cable in a clean, dry location. Temperature range: 0 F (–18 C) to 140 F(60 C). Protect the heating cable from mechanicaldamage.2.2Pre-Installation ChecksCheck materials receivedCatalog number: 5, 8 or 12 XLE — 1 or 2 -CR-CTPower output (W/ft)Product familyVoltage 1 120 Vac (only available for 5 or 8)2 208–277 Vac (available for 5, 8, or 12)Jacket type: Polyolefin orFluoropolymer(Required for grease and fuel lines)Figure 1: XL-Trace Edge catalog number Review the heating cable design and comparethe list of materials to the catalog numbersof the heating cables and connection kitsreceived to confirm that the proper materialsare on site. The heating cable type is printedon its jacket. Ensure that the service voltage available iscorrect for the XL-Trace Edge heating cableselection. Inspect the heating cable and connection kitsto ensure there is no in-transit damage. Verify the system design does not exceed themaximum exposure temperature of 185 F(85 C). Verify that the heating cable jackets arenot damaged by conducting the insulationresistance test (refer to Section 7) on eachreel of heating cable. Do not power theheating cable when it’s on the reel.4 nVent.com/RAYCHEM
2Installation GuidelinesCheck piping to be traced Make sure all mechanical pipe testing (i.e.hydrostatic testing/purging) is complete andthe system has been cleared by the client fortracing. Walk the system and plan the routing of theheating cable on the pipe. Inspect the piping and remove any burrs,rough surfaces, or sharp edges.2.3Heating Cable InstallationMinimum installation temperature of: 0 F(–18 C).Heating cable installation involves three basicsteps:1. Paying out the heating cable2. Attaching the heating cable to the pipe3. Wrapping heat sinksPaying out the heating cableMount the reel on a holder and place it neareither end of the pipe run to be traced. Use a reelholder that pays out smoothly with little tensionas shown in Figure 2. Avoid jerking the heatingcable while pulling.Pay out the heating cable and loosely stringit along the pipe, making sure the heatingcable is always next to the pipe when crossingobstacles. If the heating cable is on the wrongside of a crossing pipe or I-beam, you will have toreinstall it or cut and splice it.nVent.com/RAYCHEM 5
2Installation GuidelinesFigure 2: Paying out the heating cableWhen paying out the heating cable, AVOID: Sharp edges Excessive pulling force or jerking Kinking or crushing Walking on or running over the heating cablewith equipmentWARNING: Fire and shock hazard. Do notinstall damaged heating cable. Connection kitsand heating cable ends must be kept dry beforeand during installation.Attaching the heating cableOnce the heating cable has been run for theentire section, begin fastening it to the pipe.Start at the end and work toward the reel. Theadditional heating cable required for valves andother heat sinks is shown in Table 1 and Table 2.Refer to Table 3 for the additional heating cablerequired for connection kits. The heating cablemay be installed in single or in multiple runs asrequired by the design.6 nVent.com/RAYCHEM
2Installation GuidelinesFigure 3: Attaching the heating cablenVent.com/RAYCHEM 7
2Installation GuidelinesTABLE 1: ADDITIONAL HEATING CABLE FOR VALVESPipe diameter (IPS)Heating cable in feet )2010.5 (3.2)TABLE 2: ADDITIONAL HEATING CABLE FOR PIPESUPPORTS AND FLANGESSupportAdditional heating cablePipe hangers (insulated)No additional heating cablePipe hangers noninsulated Add 2x pipe diameterand U-bolt supports:Welded support shoesAdd 3x the length of the shoeFlangesAdd 2x pipe diameterNote: For applications where more than one heating cableis required per foot of pipe, this correction factor applies foreach heating cable run.8 nVent.com/RAYCHEM
2Installation Guidelines Run insulation through the pipe hangerensuring that the pipe is not resting on theheater.Pipe hangerunder insulationPipe hangerover insulationInsulation overpipe hangerHeating cableover pipe hangerHeating cableHeating cablebeneathinsulationand pipe hangerHeating cableFigure 4: Pipe hanger with heating cableFigure 5: Single pipe floor penetration When making floor or wall penetrations,make sure the hole is large enough toaccommodate the pipe and the thermalinsulation. When sealing around pipes at floorpenetrations, avoid damaging or cutting theheating cable, or pinching it between the pipeand the concrete.nVent.com/RAYCHEM 9
2Installation Guidelines The heating cable must not be embeddeddirectly in the sealing material; the pipe shouldhave thermal insulation over it (if allowedby local codes) or the heating cable shouldbe run through the penetration in a tube orconduit. If the conduit must be sealed, use apliable fire-resistant material (Dow CorningFire Stop, 3M Fire Barrier, or T&B Flame-Safe)that can be removed if necessary.Figure 6: Multiple pipe floor penetration On vertical piping groups, run the heatingcable along the inside of the pipe close toother pipes so it will not be damaged if thepipe hits the side of the floor penetration.Run the heating cable over the outside of thepipe support. Do not clamp the heating cableto the pipe with the pipe support. In high-rise construction it may be necessaryto install the XL-Trace Edge system 10 or 12floors at a time to fit into the constructionschedule. If so, the end of the heating cableshould be sealed with a RayClic-E end sealand placed in an accessible location. Thisallows testing of one part of the heating cableat a time, and allows splicing it to anothersection when the system is complete. When XL-Trace Edge is installed behind walls,the power connection kit must be accessible.Whenever possible, position the heating cableon the lower section of the pipe as shown inFigure 7 to protect it from damage.10 nVent.com/RAYCHEM
2Installation GuidelinesOne heating cableTwo heating cables45 45 45 Figure 7: Positioning the heating cableSecuring the heating cableWARNING: Damage to the heating cablecan cause electrical arcing or fire. Do not usemetal attachments such as pipe straps or tiewire. Use only nVent-approved tapes or plasticcable ties.Important: Before taping the heating cableto the pipe, make sure all heat-tracing allowancesfor flanges, valves, supports, and other connectionkits have been verified.Use one of the following attachment methods tosecure the heating cable onto the pipe: GT-66 orGS-54 glass cloth tape, AT-180 aluminum tape,or plastic cable ties.glass cloth adhesive tape GT-66 (66-foot roll) general-purpose tape forinstallation at 40 F (4 C) and above. Apply at1-foot intervals. GS-54 (54-foot roll) general-purpose tape forinstallation below 40 F (4 C). Apply at 1-footintervals.AT-180 aluminum tape Required for plastic pipe applications toensure proper power output of heating cable.nVent.com/RAYCHEM 11
2Installation Guidelines Tape lengthwise over the heating cableas required by the design drawing orspecification (see Figure 8). Recommended for heat-tracing pump bodiesor odd-shaped equipment, or as called out inthe design drawing as a heat-transfer aid. Install at temperatures above 32 F (0 C).AT-180aluminum tapePipe Heatingcable1ft (0.3Glass cloth tapeWeather proofingThermal insulationPipeHeating cablem)AT-180 aluminum tapeover heating cable(Required for properoutput for plasticpipe applications)Figure 8: Attaching the heating cablecable ties Recommended in applications where the pipesurface prevents proper tape adhesion. Use plastic cable ties only. Cable ties must be hand-tightened only toprevent damage to heating cable!Bending/Crossing/Cutting the Heating Cablebending the heating cableWhen positioning the heating cable on the pipe,do not bend tighter than 1/2" radius. The heatingcable does not bend easily in the flat plane. Donot force such a bend, as the heating cable willbe damaged.12 nVent.com/RAYCHEM
2Installation Guidelines1/2"Figure 9: Bending techniquecrossing the heating cableXL-Trace Edge heating cables are self-regulatingand may be overlapped whenever necessarywithout overheating or burning out.cutting the heating cableCut the heating cable to the desired length afterit is attached to the pipe. XL-Trace Edge can becut to length without affecting the heat outputper foot.Wrapping the Heat SinksOnce the straight sections are secured theheating cable can be secured to the heat sinks.Attach the heating cable to the heat sinksaccording to Figure 10 below. The length ofheating cable installed is determined in thedesign.nVent.com/RAYCHEM 13
2Installation GuidelinesValve bodyGlass tapePipeHeating cableMultiple crossovers allowedfor self-regulating cablesNote: Cable loop lengthvaries depending onheat loss.PipeHeating cableSingle crossover only, allowedfor power-limiting cablesFigure 10: ValveGlass tape(typical)Heating cableFigure 11: Flange14 nVent.com/RAYCHEMLoop length is twicethe diameter of the pipe
2Installation GuidelinesPipeGlass tapeHeating cableFigure 12: Pressure gaugeTo power connectionPump dischargeHeating cableGlass tapePump bodyPumpsuctionMotorUse AT-180tapeFigure 13: Split case centrifugal pumpnVent.com/RAYCHEM 15
2Installation GuidelinesHeating cable loopSupport shoe PipeGlass tapeHeating cable secured to pipeFigure 14: Pipe support shoeHeating cableGlass tape(typical)For pipe diameters of 2"and larger, the heatingcable should be installedon the outside (long)radius of the elbow.Figure 15: Elbow16 nVent.com/RAYCHEM
2Installation GuidelinesSprinkler head without sprigAdditional heatingcable length Pipe diameter x 4Insulation(Use outer diameter ofthermal insulation whendetermining the sprayshadowing in yoursprinkler system.)Sprinkler head with sprigSpriglengthAdditional heatingcable length Sprig length x 3Figure 16: XL-Trace Edge on sprinklersNote: The orientation and type of sprinklerhead shown above is only for reference.The illustrations only depict the amountof heat tracing required and how to install it.nVent.com/RAYCHEM 17
2Installation GuidelinesWhen installing XL-Trace Edge on dry pendantsprinklers used in freezer applications followthe methods shown below:Sprinkler pipeFreezerFreezer wallinsulationThermal pipe insulationXL-Trace Edge heating cableLength 2 x dry sprinkler lengthFigure 17: X L-Trace Edge on extended pendantsprinklers18 nVent.com/RAYCHEM
2Installation GuidelinesPipe hangerunder insulationPipe hangerover insulationInsulation overpipe hangerHeating cableover pipe hangerHeating cableHeating cablebeneathinsulationand pipe hangerHeating cableFigure 18: Pipe hanger2.4Heating Cable ConnectionsGeneral RequirementsAll XL-Trace Edge systems require a powerconnection and end seal kit. Splice and teekits are used as required. Use Table 3 (foraboveground applications) and Table 4 (forbelowground applications) to select theappropriate connection kits.When practical, mount connection kits on topof the pipe. Electrical conduit leading to powerconnection kits must have low-point drainsinstalled to avoid condensation entry into theheating system. All heating cable connectionsmust be mounted above grade level.If your design has an exposure temperature 150 F (65 C) but 185 F (85 C), install allconnections kits off the pipe.WARNING: Connection kit approvals andperformance are based on the use of specifiedparts only. Do not use substitute parts or vinylelectrical tape. Follow installation instructionsprovided with each kit.nVent.com/RAYCHEM 19
2Installation ower ted end seal(optional)InsulationRayClic-TteeRayClic-Eend sealFigure 19: Aboveground XL-Trace Edge SystemUse Table 3 for general aboveground piping,sprinkler piping, and grease and fuel lines. Allowextra heating cable for ease of connection kitinstallation.20 nVent.com/RAYCHEM
2Installation GuidelinesTABLE 3: CONNECTION KITS FOR GENERALABOVEGROUND PIPINGCatalog numberRayClic-PC 2,3Heating cableallowance1DescriptionPower connectionand end seal kit;use 1 per circuitStandard pkg: 12 ft (0.6 m)Power connectionand end seal kit;use 1 per circuitStandard pkg: 12 ft (0.6 m)Junction box notincludedFTC-P 4,5RayClic-S 2,3,6RayClic-T 2,6Splice used to join twosections of heatingcableStandard pkg: 12 ft (0.6 m)Tee kit with end seal;use as needed for pipebranchesStandard pkg: 12 ft (0.6 m)Alternate lightedend sealStandard pkg: 12 ft (0.6 m)RayClic-LEnVent.com/RAYCHEM 21
2Installation GuidelinesTABLE 3: CONNECTION KITS FOR GENERALABOVEGROUND PIPINGCatalog numberDescriptionHeating cableallowance1ContinuedFTC-HST-PLUS4Low-profile splice/tee;use as needed for pipebranchesStandard pkg: 23 ft (0.9 m)Replacement end sealStandard pkg: 10.3 ft (0.1 m)RayClic-E 3123456For ease of component installation, allow extra heatingcable.Powered splice, powered tee, and cross (tee with threelegs)connections are also available.For grease and fuel lines, install RayClic-LE or end sealoff the pipe in junction box.Not permitted with grease or fuel lines.Use for circuits supplied with 40 A circuit breaker.For grease and fuel lines, install tees and splices on pipemounting bracket (RayClic-SB-04).22 nVent.com/RAYCHEM
2Installation GuidelinesTABLE 4: ACCESSORIES FOR GENERALABOVEGROUND PIPINGCatalognumberHeating cableallowanceDescription“Electric Traced” label (use 10 labels1 label per 10 feet of pipe)ETLGT-66GS-54AT-180Glass cloth adhesive tape 66 ftfor attaching heating cableto pipe at 40 F (4 C) orabove. See Table 7.Glass cloth adhesive tapefor attaching heatingcable to pipe above –40 F(–40 C). See Table 7.54 ftAluminum tape. Required180 ftfor attaching heating cableto plastic pipe (use 1 footof tape per foot of heatingcable).Pipe mounting bracket.1 eaRequired for mountingthe kits off the pipe forexposure temperaturesgreater than 150 F (65 C)RayClic-SB-04and for grease and fuel linesplices and tees.nVent.com/RAYCHEM 23
2Installation Guidelines70F21C50F10CEC-TS-10 or EC-TS-25electronic thermostat90F32C110F43C30F–1CAlternateend h wallmountingbracketGroundTemperature sensorInsulationJunction boxRayClic-Eend sealRayClic-PC*Groundwith wallmountiungbracketAlternatepower connectionConduitXL-Trace Edgeheating cableWall*To protect the heating cablerun it inside Convolex tubing betweenthe conduit and the RayClic connection kits.Figure 20: Buried pipe XL-Trace SystemWarnIng: all heating cable connections(power, splice, tee, and end termination) are madeabove-ground. no buried or in-conduit splices ortees are allowed.24 nVent.com/RAYCHEM
2Installation GuidelinesTABLE 5: CONNECTION KITS FOR GENERALBURIED PIPINGCatalog numberHeating cableallowance*Description Power connectionand end seal2 ft (0.6 m) Junction box supplied by customer Use 1 per circuitStandard pkg: 1FTC-XC31/8"Power connection andend seal kitStandard pkg: 1RayClic-PCReplacement end seal. 0.3 ft (0.1 m)Standard pkg: 1RayClic-EAlternate lighted endsealStandard pkg: 12 ft (0.6 m)RayClic-LE* For ease of connection kit installation, allow extra heatingcable.nVent.com/RAYCHEM 25
2Installation GuidelinesTABLE 6: ACCESSORIES FOR GENERAL “Electric Traced” label (use 1label per 10 feet of pipe)10 labelsGT-66Glass cloth adhesive tape forattaching heating cable topipe at 40 F (4 C) or above.See Table 7.66 ftGS-54Glass cloth adhesive tape forattaching heating cable topipe above –40 F (–40 C).See Table 7.54 ftAT-180Aluminum tape. Requiredfor attaching heating cableto plastic pipe (use 1 footof tape per foot of heatingcable).180 ftRayClic-SB-02Wall mounting bracket1TABLE 7: QUANTITY OF GLASS CLOTH ADHESIVETAPE REQUIRED (ATTACH AT 1-FOOT INTERVALS)Pipe size (in) 2346810Feet of pipe per GT-66 roll605040252015Feet of pipe per GS-54 roll49413320161226 nVent.com/RAYCHEM
33.1Thermal InsulationInsulating the SystemPipes must be insulated with the correctthermal insulation to maintain the desiredpipe temperatures. Confirm that the insulationthickness agrees with the system design.3.2Insulation Installation Before insulating the pipe, visually inspect theheating cable and connection kits to ensurethey are properly installed and there are nosigns of damage. Damaged heating cable orconnection kits must be replaced. Check that the insulation type and thicknessis correct. Insulate the pipes immediately after the heating cable is installed and has passed all teststo minimize damage to the heating cable. Insulate the pipe at floor and wall penetrations. Failure to do so will cause cold spotsin the water system and could lead to damage to the heating cable. If local codes donot allow this, the heating cable should berun through a conduit or channel before thefirestop is installed. Use a fire-resistant sealing compound such as Dow Corning Fire Stop,3M Fire Barrier, or T&B Flame-Safe. Do not use staples to seal insulation. Use tapeor the adhesive-lined edge of the insulation toensure that the seam remains sealed. Staplescan damage the heating cable.Figure 21: Sealing the insulation seamnVent.com/RAYCHEM 27
3Thermal Insulation All systems for outdoor, buried, or wet areasmust use waterproof fire-resistant thermalinsulation. Mark the location of splices, tees, and endseals on the outside of the insulation withlabels provided in the kits, while installing theinsulation. Use large diameter insulation orsheets to cover splices, tees, or service loops.Figure 22: Installing connection kits belowinsulationFigure 23: Installing connection kits aboveinsulation28 nVent.com/RAYCHEM
3Thermal Insulation Make sure that all heat-traced piping, fittings,wall penetrations, and branch piping are insulated. Correctly designed systems requireproperly installed and dry thermal insulation.Uninsulated or wet sections of pipe can resultin cold spots or frozen sections. After installing insulation, electrical codesrequire that you install “Electric Traced” labelsalong the piping at suitable intervals (10-footintervals recommended) on alternate sides.WARNING: Use only fire-resistant insulationmaterials such as fiberglass wrap or flame-retardant foams.nVent.com/RAYCHEM 29
44.1Power Supply and ElectricalProtectionVoltage RatingVerify that the supply voltage is either 120 or208–277 volts as specified by the XL-TraceEdge system design and printed on the jacketof the heating cable.4.2Circuit Breaker SizingCircuit breakers must be sized using the heatingcable lengths shown in the Appendix. Do notexceed the maximum circuit length shownfor each breaker size. Use circuit breakersthat incorporate 30-mA ground-fault circuitprotection, or provide equivalent levels ofground-fault protection.4.3Electrical LoadingThe maximum current draw for XL-Trace Edgeheating cables is shown in the Appendix. To sizethe transformer, multiply the total heating cablelength (ft) by the appropriate current draw.4.4Ground-Fault ProtectionIf the heating cable is improperly installed orphysically damaged to the point that watercontacts the bus wires, sustained arcing orfire could result. If arcing does occur, the faultcurrent may be too low to trip conventionalcircuit breakers. nVent and national electricalcodes require both ground-fault protection ofequipment and a grounded metallic covering onall heating cables. Ground-fault protection mustbe provided by the installer.WARNING: To minimize the danger of fire fromsustained electrical arcing if the heating cable isdamaged or improperly installed, and to complywith nVent requirements, agency certifications, andnational electrical codes, ground-fault equipmentprotection must be used on each heating cablebranch circuit. Arcing may not be stopped byconventional circuit breakers.WARNING: Disconnect all power beforemaking connections to the heating cable.30 nVent.com/RAYCHEM
44.5Power Supply and ElectricalProtectionImportant Power Supply Safeguards Make sure that the heating cable load you areconnecting is within the rating of the controlsystem selected. Check the design drawingsfor the heating cable load. The electrical conduit that feeds wiring to thecontrol device must have a low-point drain socondensation will not enter the thermostatenclosure. Make sure that the line voltage you areconnecting to the control system is correct.For proper wiring, follow the installationinstructions enclosed with the control device.nVent.com/RAYCHEM 31
55.1Control, Monitoring andPower DistributionControl SystemsElectronic thermostats provide higher accuracyof the heating cable circuit with thermistorsensors and built-in ground-fault protection.Electronic controllers provide superior accuracywith RTD temperature sensors, built-in groundfault protection, monitoring and alarm output.Ambient-Sensing ControlAmbient-sensing systems energize the circuitwhen the ambient temperature drops below theset point. Mount the device above grade level and out ofsunlight. Mount the device where it will be exposed tothe coldest temperature and the highest wind.Line-Sensing ControlLine-sensing systems sense the pipe temperature by means of a sensor attached to the pipeand connected to the device. Install the sensor on the pipe at 90 degreesfrom the heating cable so that the heatingcable does not thermally interfere with thesensor. Be sure the sensor is firmly attachedwith aluminum tape to the pipe in order to getgood thermal contact between the bulb andthe pipe. Locate the sensor at least 3 feet (1 meter)from any heat sinks, such as valves, pipesupports, and pumps. Ideally, the sensorshould be located at the end of the heatingcable circuit. Be sure that you set the control to the propertemperature. Mount the device on a nearby wall or support,or install a mounting stanchion. Thermostatsmust be mounted above grade level. In allcases, protect the sensor from physicaldamage. To prevent damage, mount thedevice where it will be away from foot andequipment traffic. To prevent water entry, seal the insulationwhere the capillary tube exits the insulation.32 nVent.com/RAYCHEM
5Control, Monitoring andPower DistributionTable 1: CONTROL SYSTEMSDescriptionElectronic thermostatsEC-TSECW-GFThe EC-TS is an ambient or line-sensingelectronic thermostat housed in a NEMA4X enclosure with 2 x 1/2 in conduitentries for power and 1 gland entry forthe sensor. The temperature set pointand LED indicators for alarm, power,and heating cable status can be visuallychecked through the clear lid. Electricalrating is 30 A at 100–277 V, 50–60 Hz,SPST switch. The EC-TS includes a 25 ft(7.6 m) sensor.The ECW-GF is an ambient or linesensing electronic controller with 30-mAground-fault protection. The controllercan be programmed to maintain temperatures up to 200 F (93 C) at voltagesfrom 100 to 277 V and can switch current up to 30 Amperes. The ECW-GF iscomplete with a 25-ft (7.6-m) temperature sensor and is housed in a NEMA 4Xrated enclosure. The controller featuresan AC/DC dry alarm contact relay.An optional ground-fault display panel(ECW-GF-DP) can be added to provideground-fault or alarm indication in applications where the controller is mountedin inaccessible locations.ECW-GF-DPElectronic controllers and sensors460 & 465The 460/465 controllers are singlepoint electronic heat tracing controllersdesigned for pipe freeze protection (460)and fire sprinkler systems (465). Theyfeature a 5" inch color touch screen display for intuitive set up and programmingright out of the box. These controllersmay be used with line-sensing or ambient-sensing and proportional ambientsensing control (PASC) modes, measuring temperatures with two Thermistor 2KOhm / 77 F (25 C), 2-wire connecteddirectly to the unit. The contr
This manual assumes that the proper heat-tracing design has been completed according to the Pipe Freeze Protection and Flow Maintenance Design Guide (H55838). Only the applications described in Section 1.2 are approved by nVent for XL-Trace Edge systems when used with approved nVent RAYCHEM connection kits. The instructions in this manual
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STM is a trace element which allows for several types of trace messages to be added to a trace stream. This trace stream may or may not also contain instruction flow trace streams. Adding STM messaging has several effects. STM trace messages can be a way of tracing the high-level state of the SoC-based system.
PYROTENAX* PyroFLX Connector 2000 PETROTRACE** Downhole Heating RAYCHEM Power-Limit-ing Technology (VPL)) 1957 CHEMELEX Cut-to-Length Heater 1982 MONITRACE GF and Current Monitoring 1971 RAYCHEM Self-Regulating Heating Cable 1983 TRACER Turnkey Solutions 1986 Offshore De-Icing 2011 2014 RAYCHEM NGC-40 Control & Monitoring New RAYCHEM XTV/KTV .
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Raychem tubing bundles are available in a wide range of tubing and heater options (see bundle ordering options on page 4). Trace-heating components Raychem tubing bundles use the full range of standard XTV and BTV power connection and end seal kits. Bundle accessories Raychem bundle accessories includ
Page 9 - 13 Heating Cable Installation Page 14 - 15 Pipe Heat Loss Chart Page 16 - 17 Heat Tracing Plastic Pipes with Chemelex Auto-Trace Self-Regulating Heaters 18 Domestic / Commercial Trace Heating Guidelines Page 18 - 19 Page 18 Raychem Wintergard Page 19 Raychem HWAT Hot Water Temp
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