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GRDF / GRCF SERIES GAS FRYERS
VULCAN-HART F-32933 Rev. G (May 2009)
-15-
DRAINING THE TANK
1. Turn off fryer.
2. Insert the drain extension into the drain valve. Tighten only hand tight.
3. Direct the drain spout into the container that you want to drain the shortening into.
4. Open the drain valve. The oil will drain into the container. When the container is
full or the fryer tank is empty, close the drain valve. Repeat this step until the fryer
is empty. Remove the drain extension and place it back into the provided holder.
5. It is recommended to now Boil Out your fry tank. Follow the Boil Out procedure.
Then perform the weekly clean-out as described under CLEANING.
6. Once tank is completely empty, boiled out and cleaned, add new shortening. Turn
on the power switch to begin heating the oil to desired temperature.
BOIL OUT PROCEDURE
Weekly or when oil is replaced:
1. Drain the tank as described under FILTERING THE OIL and instead of replacing
the shortening with new oil fill with water
2. Close the drain valve and fill tank with water. Use recommended Vulcan’s Boil-Out
solid degreaser low foaming cleaner tablets part number 956812-1 which can be
ordered from your local dealer
. Follow the instructions on the side of the package.
Do not use chlorine or sulfate/sulfide cleaners.
3. Solution level must be between the MIN and MAX levels on the fryer tank.
4. After pressing the TEMP button for the second time confirming that the boil out
solution level is correct the gas burners will begin to heat the water solution. The
fryer controls will be able to sense that there is a water mix solution vs. oil and will
automatically set the correct temperature. There is NO need to change the set
temperature from the last set operating temperature. Allow solution to simmer for
about 15 to 20 minutes. Use a tank brush to clean the sides, back, front, and heat
exchanger tubes.
5. With the drain extension tightened into the drain valve, drain and discard the
cleaning solution from the tank.
6. Close the drain valve and refill the tank with water. Add 1 cup (1/4 L) of vinegar to
neutralize alkaline left by the cleaner. Solution level must be between the MIN and
MAX level on the fryer tank. Press the TEMP button to confirm the vinegar level is
correct.