Use only clean, dry air with 90 to 120 psi (621 to 827 kPa) pressure. Prevent moisture from entering air supply at extreme cold temperatures. 3 Gas/Air Inlet Opening 4 Hose Hose must have a minimum inside diameter of 3/8 in (9.5 mm). 5 Teflon Tape Obtain hose with 1/4 NPT righthand thread fitting. Wrap threads with teflon tape (optional) or apply pipe sealant, and install fitting in opening. Route hose to gas/air supply. Or Install supplied quick connect male 1/4 in NPT pipe fitting. Connect female quick connect fitting to pipe fitting. Route hose to gas/air supply. Incorrect plasma gas can cause torch and power source damage. Use only air or nitrogen for the plasma gas. Tools Needed: 5/8, 1-1/8 in From Gas/Air Supply Ref. 801 319-C / Ref. 803 221 Rear of Unit 1 2 5 3 4 AIR/N2 90-120 psi . A complete Parts List is available at 4-7. Electrical Service Guide 50/60 Hz Single Phase Input Voltage 208 230 Input Amperes At Rated Output 33 30 Max Recommended Standard Fuse Rating In Amperes Cricuit Breaker 1, Time-Delay 2 Normal Operating 3 40 50 35 45 Min Input Conductor Size In AWG 4 10 10 Max Recommended Input Conductor Length In Feet (Meters) 80 (24) 98 (30) Min Grounding Conductor Size In AWG 4 10 10 Reference: 2005 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 purpose - no intentional delay) fuses are UL class “K5” (up to and including 60 amp), and UL class “H” ( 65 amp and above). 4 Conductor data in this section specifies conductor size (excluding flexible cord or cable) between the panelboard and the equipment per NEC Table 310.16. If a flexible cord or cable is used, minimum conductor size may increase. See NEC Table 400.5(A) for flexible cord and cable requirements. . Caution: Failure to follow these fuse and circuit breaker recommendations could create an electric shock or fire hazard. 4-8. Extension Cord Data When calculating max. cord length, remember to include conductor length from line disconnect device to input power receptacle. NOTE Input Voltage Input Power Phase Hertz Fuse Size Or Circuit Breaker Rating Conductor Size Max. Cord Length 208 V 1 50/60 Time-Delay 2 40 A Normal Operating 3 50 A 10 AWG 80 ft (24 m) 230 V 1 50/60 Time-Delay 2 35 A Normal Operating 3 45 A 10 AWG 98 ft (30 m) 2 “Time-Delay” fuses are UL class “RK5” . 3 “Normal Operating” (general purpose . no intentional delay) fuses are UL class “K5” (up to and including 60 amp), and UL class “H” ( 65 amp and above). OM-926 Page 13 A complete Parts List is available at OM-926 Page 14 4-9. Selecting A Location And Connecting Input Power 1 Plug (NEMA Type 6-50P) 2 Receptacle (NEMA Type 6-50R) Connect plug to receptacle. 3 Input And Grounding Conductors For single-phase operation: Make input power connections to the machine before making connections into a deenergized line disconnect device. In the line disconnect device, always connect green or green/yellow grounding conductor to supply grounding terminal first, never to a line terminal. Connect directly to line disconnect device if hard wiring is required. 4 Line Disconnect Device See Section 4-7. Special installation may be required where gasoline or volatile liquids are present . see NEC Article 511 or CEC Section 20. L2 L1 230 VAC, 1 18 in (457 mm) of space for airflow L1 (Black) L2 (White) Do not move or operate unit where it could tip. Always connect grounding conductor first. = GND/PE 2 1 4 3 208 959 / 803 222 Green Or Green/Yellow Install conductors into a deenergized line disconnect device. Serial Number/Rating Label located on rear panel of plasma cutter; use label to determine input power for unit. A complete Parts List is available at OM-926 Page 15 4-10. Wiring Optional 240 Volt Plug (119 172) For Connection To Bobcat, Trailblazer Or Champion 10,000 Ref. 120 813-D / Ref. 803 222 1 Input And Grounding Conductors 2 Plug Wired for 240 V, 2-Wire Load 3 Neutral (Brass) Terminal And Prong (Not Used) 4 Load 1 (Brass)Terminal And Prong 5 Load 2 (Brass) Terminal And Prong 6 Ground (Brass) Terminal And Prong 7 Black And White Input Conductors 8 Green Or Green/Yellow Ground Conductor Always connect green or green/yellow wire to ground terminal, never to a load terminal. Connect black (L1) and white (L2) wires to load terminals. Tools Needed: 7 Green Or Green/Yellow 2 3 4 6 5 240V 8 3/16 in 8 7 6 5 4 3 Plug Front View Engine Control Switch must be set at “RUN” position . not “RUN/IDLE”. Set generator Fine Adjustment Control to 10 for maximum auxiliary power, if applicable. 1 A complete Parts List is available at OM-926 Page 16 4-11. Installing Alternative Plug 1 Supplied 230 VAC Plug Cut cord close to plug. 2 Alternative Plug (230 VAC Plug Shown) 3 Input (Black Lead) (Brass) Terminal 4 Neutral (White Lead) (Brass) Terminal 5...