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We feel that our 12 hour program ( No. 3 ), which is permanently programmed into your
controller, is the best and most useful program for the average casting operation. You can load
your furnace at 3 - 4 or 5:00 P.M. in the evening and arrive at 7 - 8 or 9:00 A.M. and cast. Many
casters prefer to load and cast in a 8 hour workday. We also have a 5 hour program (No. 2) that has
worked well for many years with flasks no larger than 4" to 5". Also, you have the option of
creating your own custom programs into the programmer (up to 6 different programs). This is
discussed on pages 11, 12 and 13.
Again, during the first hour of all programs the operator should be in attendance to remove
the melted wax from the wax tray which you should have on the floor of your furnace. This will do
two things. First, it will eliminate the odors and fumes created from the wax elimination, and
second, extend the life of the heating elements. The ventilation hole(s) at the top of the furnace
must remain open during this hour. After emptying wax from tray, replace the flasks with the sprue
hole up, or use our WWR13 or WWT18 Grate & Tray, then leave sprue hole down.
After burnout is complete, casting can be done. Once casting is complete, turn off furnace
by pressing STOP button. If you have not completed casting by the end of the final holding time,
the programmer will turn off.
PROGRAMMING A DELAY FIRING [ dELA ]
Regardless of the program that you run (either built-in or custom), you can insert a delay
period before the firing profile begins. This will allow you schedule the start of the program such
that you can cast upon your arrival. The only requirement is to have eliminated the wax either by
the furnace with PROGRAM NO. 1 or by Steam Wax Elimination.
Upon entering the desired program you are going to run (either permanent or custom) and
you reach the final step of displaying [ IdLE ], press DELAY START (3). The display will alternately
show
[ dELA ] and [ 00.00 ]. At this time you enter the amount of delay time you wish before the furnace
begins the burnout cycle (EXAMPLE: You program at 4:00 P.M. and you want a 5 hour burnout
(PROGRAM NO. 2) and you wish to cast at 8:00 A.M. - The delay entered is 11 hours [ 11.00 ] - This
starts the furnace at 3:00 A.M. and you are ready to cast at 8:00 A.M.). You can enter a delay start
time up to 99 hours.
After entering your delay start time press ENTER twice. After doing so, you can see the
timer in operation and counting down until the delay time entered has expired and the furnace
begins the selected burnout program.