Tweco 20 O2 Auto-Cut - Manuel (Page 25)

Manual No. 0-4816 Auto-Cut 200
2
3-1 INSTALLATION
SECTION 3: INSTALLATION
3.01 Installation Requirements
Electric Supply
The electrical supply network, the gas and water supply system must meet local safety standards. This
conformity shall be checked by qualified personnel.
Input Power Input Current
Voltage Freq. 3-Ph 3-Ph Fuse (Amps) Wire (AWG)
(Volts) (Hz) (kVA) (Amps) 3-Ph 3-Ph
208 60 47 130 160 #2 2
230 60 49 125 150 #2 2
400 50 54 77 100 #2 1
400 (CE) 50 54 77 100 #2 1
460 60 59 75 90 #2 1
Auto-Cut 20O
2
Power Supply Electrical Inputs
2 Extra Hard Usage Type G, G-GC, W
Suggested Sizes (See Note)
Line Voltages with Suggested Circuit Protection and Wire Sizes
1 Extra Hard Usage Type SO, SOW, SOO, SOOW, ST, STW, STO, STOW, STOO, STOOW
Based on National Electric Code and Canadian Electrical Code
Fuse and wire sizes are for reference only. The installation must conform to national and local codes for the type of
wire being used and method of installation.
Gas Supply
The customer must supply all gases and pressure regulators. Gases must be of high quality. Pressure
regulators must be double-stage and installed as close as possible to the gas console. Contaminated gas
can cause one or more of the following problems:
• Reduced cutting speed
• Poor cut quality
• Poor cutting precision
• Reduced consumables life.
• Oil or grease contamination from compressed or bottled air can cause fires in conjunction with oxygen.
Gas supply leads must be #8 (1/2 in. ) hose or larger
Cooling System Requirements
Coolant must be added to the system on installation. The amount required varies with torch leads length.
Thermal Dynamics recommends its coolants 7-3580 and 7-3581 (for low temperatures).
Cat. Number and Mixture Mixture Protects To
7-3580 'Extra-Cool TM ' 25 / 75 10° F / -12° C
7-3581 'Ultra-Cool TM ' 50 / 50 -27° F / -3° C
7-3582 'Extreme Cool T M ' Concentrate* -65° F / -51° C
Coolant Capabilities
* For mixing with D-I Cool TM 7-3583