Hypertherm XPR300 - Page 23

Plasma Power Supply
1
XPR300 Field Service Bulletin 809970 23
5. Connect the connectors for the fan wires to the fan power distribution PCB:
 J3 for the top fan
 J4 for the bottom fan
6. Use a 10 mm, hexagonal-socket wrench to install the 7 nuts that attach the heat-exchanger
panel to the center panel and bottom panel.
7. Install the coolant thermistor. See Replace the coolant thermistor, step 5 on page 24.
8. Connect the coolant hose fittings to the heat-exchanger assembly.
9. Remove the tape and protective material from the rear panel of the heat-exchanger assembly.
10. Add coolant to fill the tank.
11 . Install all of the panels.