Bunn HWB Installation & Operating Manual page 12

How to Download Software from your Computer E-mail to the USB Flash Drive
4. Insert the USB Flash Drive into a USB port on your computer (from this point on, we will assume that the
flash drive is mounted to your computer as the drive letter "E:\").
5. Navigate to the following directory on the USB Flash Drive:
"E:\BUNN_USB\IMIXHWB0\SOFTWARE\"
6. In your e-mail, you should have an attachment containing the machine software that is a file consisting of a
name exactly 8 characters long that ends in the extension ".BIN". Save this file to the newly opened directory on
your USB Flash Drive from step 5. Note that going forward that there can be only one ".BIN" file in this directory
for this procedure to work.
7. Once this has been completed, please safely remove the USB thumb drive from your PC.
Loading Software / Reprogramming The Machine
8. Take your thumb drive back over to the HWB unit and plug it in to the USB port on the machine.
9. Wait about five seconds for the thumb drive to pair up, then flip the top most toggle switch inside the ma-
chine to the middle position (this will be the PROGRAM position), making sure that the bottom toggle switch is
in the top position (this is the ON position).
10. Close the door on the HWB machine. The 2x16 display should now say the follow-
ing:
PROGRAM MODE !!!
PRESS FORWARD SW
11. Press and release the HOT WATER button on the membrane switch to step through
the menu screens of program mode. Keep on pressing and releasing the HOT WATER
button until you run across a screen that says the following:
ENTER USB MENU ?
EXIT YES
12. Once on that screen, press the REDUCED FILL button to enter this menu screen. The HWB machine will
begin to communicate with the USB Board. Once the pairing takes place, the screen should alternate between
showing the USB Board version and the HWB machine version. It will look similar to the following format (using
00.99 and 04.08 as example software versions):
iMIX VERS 00.99 <--every three seconds-->
PRESS FORWARD <--this will alternate-->
USB VERS 04.08
PRESS FORWARD
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