Miller Electric NT 456 CV, NT 456 CC manual Your distributor also gives, Service, Support

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miller_warr 2007−01

Warranty Questions?

Effective January 1, 2007 (Equipment with a serial number preface of “LH” or newer)

This limited warranty supersedes all previous Miller warranties and is exclusive with no other

guarantees or warranties expressed or implied.

Call

1-800-4-A-MILLER for your local Miller distributor.

Your distributor also gives

you ...

Service

You always get the fast, reliable response you need. Most replacement parts can be in your hands in 24 hours.

Support

Need fast answers to the tough welding questions? Contact your distributor.

The expertise of the distributor and Miller is there to help you, every step of the way.

LIMITED WARRANTY − Subject to the terms and conditions below, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants to its original retail purchaser that new Miller equipment sold after the effective date of this limited warranty is free of defects in material and workmanship at the time it is shipped by Miller. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.

Within the warranty periods listed below, Miller will repair or replace any warranted parts or components that fail due to such defects in material or workmanship. Miller must be notified in writing within thirty (30) days of such defect or failure, at which time Miller will provide instructions on the warranty claim procedures to be followed.

Miller shall honor warranty claims on warranted equipment listed below in the event of such a failure within the warranty time periods. All warranty time periods start on the delivery date of the equipment to the original end-user purchaser, and not to exceed one year after the equipment is shipped to a North American distributor or eighteen months after the equipment is shipped to an International distributor.

1.5 Years Parts — 3 Years Labor

*Original main power rectifiers

2.3 Years — Parts and Labor

*Transformer/Rectifier Power Sources

*Plasma Arc Cutting Power Sources

*Process Controllers

*Semi-Automatic and Automatic Wire Feeders

*Inverter Power Sources (Unless Otherwise Stated)

*Water Coolant Systems (Integrated)

*Intellitig

*Engine Driven Welding Generators

(NOTE: Engines are warranted separately by the engine manufacturer.)

3.1 Year — Parts and Labor Unless Specified

*Motor Driven Guns (w/exception of Spoolmate Spoolguns)

*Positioners and Controllers

*Automatic Motion Devices

*RFCS Foot Controls

*Induction Heating Power Sources, Coolers, and Electronic

Controls/Recorders

*Water Coolant Systems (Non-Integrated)

*Flowgauge and Flowmeter Regulators (No Labor)

*HF Units

*Grids

*Spot Welders

*Load Banks

*Arc Stud Power Sources & Arc Stud Guns

*Racks

*Running Gear/Trailers

*Plasma Cutting Torches (except APT & SAF Models)

*Field Options

(NOTE: Field options are covered under True Bluefor the remaining warranty period of the product they are installed in, or for a minimum of one year — whichever is greater.)

*Bernard-Branded Mig Guns (No Labor)

*Weldcraft-Branded TIG Torches (No Labor)

*Subarc Wire Drive Assemblies

4.6 Months — Batteries

5.90 Days — Parts

*MIG Guns/TIG Torches and Subarc (SAW) Guns

*Induction Heating Coils and Blankets, Cables, and Non-Electronic Controls

*APT & SAF Model Plasma Cutting Torches

*Remote Controls

*Accessory (Kits)

*Replacement Parts (No labor)

*Spoolmate Spoolguns

*Canvas Covers

Miller’s True BlueLimited Warranty shall not apply to:

1.Consumable components; such as contact tips, cutting nozzles, contactors, brushes, slip rings, relays or parts that fail due to normal wear. (Exception: brushes, slip rings, and relays are covered on Bobcat, Trailblazer, and Legend models.)

2.Items furnished by Miller, but manufactured by others, such as engines or trade accessories. These items are covered by the manufacturer’s warranty, if any.

3.Equipment that has been modified by any party other than Miller, or equipment that has been improperly installed, improperly operated or misused based upon industry standards, or equipment which has not had reasonable and necessary maintenance, or equipment which has been used for operation outside of the specifications for the equipment.

MILLER PRODUCTS ARE INTENDED FOR PURCHASE AND USE BY COMMERCIAL/INDUSTRIAL USERS AND PERSONS TRAINED AND EXPERIENCED IN THE USE AND MAINTENANCE OF WELDING EQUIPMENT.

In the event of a warranty claim covered by this warranty, the exclusive remedies shall be, at Miller’s option: (1) repair; or (2) replacement; or, where authorized in writing by Miller in appropriate cases, (3) the reasonable cost of repair or replacement at an authorized Miller service station; or (4) payment of or credit for the purchase price (less reasonable depreciation based upon actual use) upon return of the goods at customer’s risk and expense. Miller’s option of repair or replacement will be F.O.B., Factory at Appleton, Wisconsin, or F.O.B. at a Miller authorized service facility as determined by Miller. Therefore no compensation or reimbursement for transportation costs of any kind will be allowed.

TO THE EXTENT PERMITTED BY LAW, THE REMEDIES PROVIDED HEREIN ARE THE SOLE AND EXCLUSIVE REMEDIES. IN NO EVENT SHALL MILLER BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING LOSS OF PROFIT), WHETHER BASED ON CONTRACT, TORT OR ANY OTHER LEGAL THEORY.

ANY EXPRESS WARRANTY NOT PROVIDED HEREIN AND ANY IMPLIED WARRANTY, GUARANTY OR REPRESENTATION AS TO PERFORMANCE, AND ANY REMEDY FOR BREACH OF CONTRACT TORT OR ANY OTHER LEGAL THEORY WHICH, BUT FOR THIS PROVISION, MIGHT ARISE BY IMPLICATION, OPERATION OF LAW, CUSTOM OF TRADE OR COURSE OF DEALING,

INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE, WITH RESPECT TO ANY AND ALL EQUIPMENT FURNISHED BY MILLER IS EXCLUDED AND DISCLAIMED BY MILLER.

Some states in the U.S.A. do not allow limitations of how long an implied warranty lasts, or the exclusion of incidental, indirect, special or consequential damages, so the above limitation or exclusion may not apply to you. This warranty provides specific legal rights, and other rights may be available, but may vary from state to state.

In Canada, legislation in some provinces provides for certain additional warranties or remedies other than as stated herein, and to the extent that they may not be waived, the limitations and exclusions set out above may not apply. This Limited Warranty provides specific legal rights, and other rights may be available, but may vary from province to province.

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Contents File Multiprocess OM-2243212 113TProcesses DescriptionFrom Miller to You Table of Contents Page HOT Parts can cause severe burns Symbol UsageArc Welding Hazards Electric Shock can killFlying Metal or Dirt can injure eyes Fumes and Gases can be hazardousARC Rays can burn eyes and skin Welding can cause fire or explosionMoving Parts can cause injury Welding Wire can cause injuryFire or Explosion hazard Falling Unit can cause injuryAbout Implanted Medical Devices Principal Safety StandardsCalifornia Proposition 65 Warnings EMF InformationUNE Décharge Électrique peut entraîner la mort Symboles utilisésDES Pièces Chaudes peuvent provoquer des brûlures graves LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un in cendie ou une explosion LA Chute DE L’APPAREIL peut blesser LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées Risque D’INCENDIE OU D’EXPLO- SionProposition californienne 65 Avertissements LES Fils DE Soudage peuvent provoquer des blessuresLE Soudage À L’ARC risque de provoquer des interférences Principales normes de sécurité Information EMFEn ce qui concerne les implants médicaux OM-2243 − Definitions Nameplate Safety Symbols− Installation SpecificationsDuty Cycle And Overheating 100 200 300 400 500 600 CC ModeCV Mode Volt-Ampere CurvesMovement Location Selecting a LocationDimensions And Weights DimensionsWeight VAC Receptacle And Circuit Breakers Be careful when placing or moving unit over uneven surfacesTurn Off power before connecting to receptacle TippingWeld Output Terminals And Selecting Cable Sizes Connecting Weld Output CablesSocket Connecting Remote ControlTurn off power before con Remote 14 Receptacle InformationPlacing Jumper Links Electrical Service Guide= GND/PE Earth Ground Connecting Input PowerWelding Power Source Input Power Connections Disconnect Device Input Power Con- nectionsControls − OperationMeter Functions For CC/CV Models Touch Seconds Do not Strike Like a Match Lift-Arc TIG Procedure For CC/CV ModelsDisconnect input power be- fore opening rear access door − Maintenance & TroubleshootingRoutine Maintenance Disconnect power before maintainingVoltmeter/Ammeter Help Displays HE.LTrouble Remedy TroubleshootingCircuit Diagram For NT 456 CC/CV Models − Electrical DiagramMain Assembly − Parts ListTHERMISTOR, NTC 10K OHM @ 25 DEG C 34IN Lead 14 12 274 Panel, Front With ComponentsPanel, Front With Components -1Item IGBT/Capacitor Assembly 221 IGBT/Capacitor Assembly -1itemPanel, Rear With Components Service Your distributor also givesSupport Your distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact