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OM-225 216 Page 10

4-3. Duty Cycle And Overheating

Duty Cycle is percentage of 10 min-

utes that unit can cut at rated load

without overheating.
If unit overheats, thermostat(s)

opens, output stops, Temperature

trouble light goes On, and cooling

fan runs. Wait fifteen minutes for

unit to cool or temperature light to

go off. Reduce amperage or duty

cycle before cutting or gouging.

Y

Exceeding duty cycle can

damage unit and void

warranty.

Overheating

sduty1 5/95 / Ref. 80503-A

3-1/2 Minutes Cutting

6-1/2 Minutes Resting

35% duty cycle

For Units Connected to a 120 Volt Circuit 

or a 240 Volt Circuit:

35% Duty Cycle At 27 amperes, 92 volts dc

0

15

Minutes

A

OR

Reduce Duty Cycle

13-1/8 in

(333 mm)

4-4. Power Source Dimensions And Weight

loc_2 3/96 - Ref. 804 503-A

5-1/2 in

(140 mm)

9 in

(229 mm)

Dimensions And Weight

18 lb (8.2 kg)

including torch

Y

Do not move or operate unit

where it could tip.

4-5. Torch Dimensions And Weight

Ref. 802 877

3.0 lb (1.4 kg)

1  in

(25 mm)

8-3/8 in

(213 mm)

1-3/8 in

(35 mm)

Summary of Contents for ICE-27T

Page 1: ...Processes Description Air Plasma Cutting and Gouging Air Plasma Cutter OM 225 216E 2006 10 Spectrum 375 X TREME And ICE 27T Torch R File Plasma Cutters Visit our website at www MillerWelds com...

Page 2: ...inue the tradition They re just as committed to providing equipment and service that meets the high standards of quality and value established in 1929 This Owner s Manual is designed to help you get t...

Page 3: ...ations For Torch 9 4 3 Duty Cycle And Overheating 10 4 4 Power Source Dimensions And Weight 10 4 5 Torch Dimensions And Weight 10 4 6 Connecting Gas Air Supply 11 4 7 Connecting Work Clamp 11 4 8 Elec...

Page 4: ......

Page 5: ...ments in OSHA 1910 252 a 2 iv and NFPA 51B for hot work and have a fire watcher and extinguisher nearby Touching live electrical parts can cause fatal shocks or severe burns The torch and work circuit...

Page 6: ...oxygen depletion can alter air quality causing injury or death Be sure the breathing air is safe D Do not cut in locations near degreasing cleaning or spraying oper ations The heat and rays of the arc...

Page 7: ...st strap BEFORE handling boards or parts D Use proper static proof bags and boxes to store move or ship PC boards H F RADIATION can cause interference D High frequency H F can interfere with radio nav...

Page 8: ...www nfpa org OSHA Occupational Safety and Health Standards for General Industry Title 29 Code of Federal Regulations CFR Part 1910 Subpart Q and Part 1926 Subpart J from U S Government Printing Office...

Page 9: ...D Ne coupez pas de contenants qui ont d j re u des combustibles D Portez des v tements de protection exempts d huile tels que des gants en cuir une veste r sistante des pantalons sans revers des botte...

Page 10: ...peut endommager l ou e D Utilisez des prot ge tympans ou un serre t te antibruit si le niveau sonore est lev D Pr venez toute personne sur les lieux du danger reli au bruit LES FUM ES ET LES GAZ peuv...

Page 11: ...porteurs sont pri s de consulter leur m decin avant d approcher les op rations de coupage plasma L EMPLOI EXCESSIF peut SURCHAUFFER L QUIPEMENT D Pr voir une p riode de refroidissement respecter le cy...

Page 12: ...ention During Welding Cutting and Other Hot Work NFPA Standard 51B de National Fire Protection Association P O Box 9101 1 Battery March Park Quincy MA 02269 9101 t l phone 617 770 3000 site Internet w...

Page 13: ...Max OCV 120 Volts 10 20 A 27 A At 91 Volts DC At 20 Duty Cycle 28 8 max 0 30 3 4 KVA 3 2 KW 4 5 CFM 120 Volts 10 15 A 20 A At 88 Volts DC At 35 Duty Cycle 20 6 max 0 30 2 5 KVA 2 3 KW Air Or Nitrogen...

Page 14: ...ty cycle can damage unit and void warranty Overheating sduty1 5 95 Ref 80503 A 3 1 2 Minutes Cutting 6 1 2 Minutes Resting 35 duty cycle For Units Connected to a 120 Volt Circuit or a 240 Volt Circuit...

Page 15: ...hose with 1 4 NPT right hand thread fitting Wrap threads with teflon tape optional or apply pipe sealant and install fitting in opening Route hose to gas air supply Tools Needed 3 From Gas Air Supply...

Page 16: ...National Electrical Code NEC including article 630 1 Choose a circuit breaker with time current curves comparable to a Time Delay Fuse 2 Time Delay fuses are UL class RK5 3 Normal Operating general p...

Page 17: ...ing Conductor 3 Input Power Cord 4 Disconnect Device switch shown in the OFF position 5 Disconnect Device Grounding Terminal 6 Disconnect Device Line Terminals Connect green or green yellow grounding...

Page 18: ...0 volts ac input power see Section 4 8 1 Power Cord Connector 2 Plug NEMA Type 5 15P 3 Receptacle NEMA Type 5 15R Customer Supplied 4 Plug NEMA Type 6 50P 5 Receptacle NEMA Type 6 50R Customer Supplie...

Page 19: ...If 22 27 amperes of cutting output is used with 120 VAC input power and the overload protection on the input power circuit fre quently opens either reduce the cutting out put and or the cut time or f...

Page 20: ...um and Stainless Steel cut speeds at these thicknesses may be reduced as much as 20 Recommended Cut Speeds At 20 Amperes Output Thickness Recommended Cut Speeds Inches mm ipm mm min Mild Steel 16 ga 1...

Page 21: ...ow continues for 20 seconds after releasing trigger cutting arc can be instantly restarted during postflow by raising trigger lock and pressing trigger The pilot arc starts immediately when trigger is...

Page 22: ...7 Use n Gas Air Pressure n Torch Tip Electrode And Shield Cup 6 7 Every Week Section 6 6 Week n Shield Cup Shutdown System Section 6 6 Every 3 Months l Damaged Or Unreadable Labels Air Filter Regulat...

Page 23: ...e working on unit Y Significant DC voltage can remain on capacitors after unit is Off Wait until all front panel LED s are off before removing wrapper Y Check DC bus voltage according to Section 6 4 a...

Page 24: ...age does not drop to near zero after several minutes use a bleeder resistor of between 200 and 500 ohms at least 10 watts and 16 AWG 600 volts ac in sulation rated wire to discharge the capacitor s 5...

Page 25: ...t input power plug from receptacle Remove wrapper from unit see Section 6 3 1 Filter Base 2 Filter 3 Filter Cup Unscrew filter cup from base Remove cup Unscrew filter element from base Check filter el...

Page 26: ...if shield cup is loose off Turn Power On and loosen shield cup If shutdown system works properly Cup light comes on If not turn power Off and have a factory authorized service agent check unit If syst...

Page 27: ...Remove shield cup Check cup for cracks and replace if necessary 2 Tip 3 Opening Remove tip Check tip and replace if open ing is deformed or 50 oversize If inside of tip is not clean and bright clean...

Page 28: ...PLG1 from torch to receptacle RC1 on end of wiring harness connected to circuit board PC1 5 Ring Terminal And TORCH WHITE Terminal Connect ring terminal on end of white leads to TORCH WHITE terminal 6...

Page 29: ...OM 225 216 Page 25 Notes...

Page 30: ...OM 225 216 Page 26 SECTION 7 ELECTRICAL DIAGRAM Figure 7 1 Circuit Diagram...

Page 31: ...OM 225 216 Page 27 224 682 B...

Page 32: ...16 Page 28 SECTION 8 PARTS LIST Hardware is common and not available unless listed 804 507 B 1 2 3 4 5 6 15 8 9 10 11 12 13 14 18 22 25 24 26 27 28 29 30 31 32 33 23 16 17 19 20 21 7 Figure 8 1 Main A...

Page 33: ...ITOR ASSY 2 17 229878 VARISTOR 360V 122 JOULE W TERMINALS 1 18 225171 WINDTUNNEL MAGNETICS 1 19 225174 INDUCTOR OUTPUT 1 20 225172 XFMR HF LITZ 1 21 225173 INDUCTOR INPUT 1 22 FM 1 227682 FAN MUFFIN 1...

Page 34: ...before checking torch parts Check before each use and hourly during operation CAUTION 228 449 A ICE 27C T CONSUMABLES FAILURE TO RE PLACE WORN TIP OR ELECTRODE WILL DAMAGE TORCH AND VOID WARRANTY Drag...

Page 35: ...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...

Page 36: ...retain with your personal records Always provide Model Name and Serial Style Number Contact a DISTRIBUTOR or SERVICE AGENCY near you Welding Supplies and Consumables Options and Accessories Personal...

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