APPENDIX A
Operator Manual
Figure a-1 F1 and F2 Fuse Location
Location of fuses F1 and F2.
In the event that the Powermax900 was configured incorrectly for the incoming power, fuses F1 and/or
F2 may have blown to protect the power supply.
WARNING
SHOCK HAZARD: Always turn off power, unplug cord from wall and wait 5 minutes before
removing any power supply cover. If power supply is directly connected to a line
disconnect switch, place line disconnect switch to OFF position. In the U.S., use a "lock-out /
tag-out" procedure until the service or maintenance work is complete. In other countries,
follow appropriate local or national safety procedures.
1. Turn the Powermax900 power switch to the OFF (0) position, unplug the power cable from the
wall receptacle and disconnect the gas supply. See warning above.
2. Remove the screws that secure the power supply cover to the chassis.
3. Remove the cover and find F1 and F2 power fuses - Fig. a-1.
4. Remove and check the fuses. Replace, if necessary:
Fuse part number 008809 for 208/240/480V power supplies;
Fuse part number 008958 for 200/230/400V and 400V CE power supplies.
5. Replace the power supply cover.
6. Be certain that a licensed electrician verifies incoming power and configures the Powermax900
appropriately. See voltage configurations in the Setup section beginning on page 3-4.
a-1
CHANGING FUSES
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