FurnacePros LA-309, Owner'S Manual

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Equipment Operation
4) PROCESS GAS.
For furnaces equipped with the Auto Gas Shutoff feature, the process gas valves
will close after COOL DOWN is finished. For complete shutdown, manually close process gas supply
valves, but only after COOL DOWN is complete.
5)
MAIN POWER. The main power is not automatically disconnected from the furnace. If you wish to
disconnect the main power to the furnace, wait until steps 1-3 are complete before throwing the facility
power breaker.
2.4.7 Turn Off Furnace PC and Monitor
Shutdown of Windows XP or Windows 7 and the furnace computer is only required if you are
disconnecting facility power to the furnace.
1) LOG OFF
. Using the PC mouse, go to the Security screen. Click your user name in the User List and
click Log-Off. Clicking on the Exit button will take you out of furnace operation mode when all zones
are below 100°C and the belt has stopped.
2)
SHUT DOWN . From the Windows Desktop, select start, then select Shut Down. The computer will
Power OFF after the operating system closes all files.
2.4.8 Exit Furnace Program
1)
EXIT FROZEN PROGRAM . Using the PC keyboard, press ALT-F4 to exit the active program.
2)
This method of closing the furnace program should only be used to exit a frozen program. It will
not affect the program running in the PLC. If still in Cool Down, the furnace will continue to run
until the Cool Down sequence is complete.
Note: If communication is lost to the PLC LCM4 controller, the furnace program will freeze. To
exit any frozen Windows® program, Press Alt-F4 on the keyboard.
2.4.9 Shut Down Considerations
The furnace should be shut down when more than an hour or two will elapse between production runs. A
shutdown conserves energy and prolongs the life of the furnace and elements. Follow the steps in sections
2.4.4 Cool Down or 2.4.5 Complete Shut Down for short duration shutdowns.
The furnace computer is often left running if the furnace is to be down for less than 2-3 days. Leaving the
computer on for longer period will not harm the system.
10-004 – 676-110000
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