Calibrate Flow; Calibrate Sprayhead Flow - Bunn DUAL SH DBC Operating Manual

PROGRAMMING FUNCTIONS - (cont.)
Procedure to adjust the fl ow rate setting:
1. Press and hold upper right hidden switch until the
display reads SET NEW RECIPES. Release switch.
Press and release upper right hidden switch until
the display reads BYPASS OZ/M. The number
represents what the brewer thinks is the fl ow rate
of the bypass valve in ounces per minute.
2. If the actual fl ow rate of the bypass valve is known,
but is different than the number on the display, use
the (-) and (+) pads to enter the correct fl ow rate
in ounces per minute.
3. When fi nished, press and release the DONE pad.
This saves the new setting and advances to the
next function screen, CALIBRATE FLOW. Another
alternative is to press and release either of the
pads located on the front switch panel to exit the
BYPASS OZ/M function and return to the MAIN
SCREEN.

CALIBRATE FLOW

This function allows the operator to enter the actual
fl ow rate of the sprayhead and the bypass for each
side of the brewer by dispensing both separately for
one minute. The volumes are then entered in ounces
per minute (OZ/M).
Procedures to calibrate the sprayhead fl ow rate:
1. Place a container, accurately graduated in ounces,
and with a minimum capacity of 60 ounces, be-
neath the funnel on the side of the brewer to be
calibrated.
2. Press and hold upper right hidden switch until the
display reads SET NEW RECIPES. Release switch.
Press and release upper right hidden switch until
the display reads CALIBRATE FLOW ?.
3. Press and release YES to advance to the SPRAY
HEAD CAL? function screen. (Pressing NO in the
CALIBRATE FLOW screen will advance to the next
function screen, BREW COUNTERS).
4. Press and release the YES pad. The display should
read CONTAINER READY? If the container is under
the funnel, press YES. The display should read
CALIBRATE SPRAY .. PRESS BREW TO START.
5. Press and release the
calibrated. The display should read CALIBRATE
SPRAY .. 60 SEC TO FINISH. The 60 second timer
on the display will count down to zero. When the
counter reaches zero, the display will change to
LEFT or RIGHT OZ., along with a number signify-
ing ounces per minute.
pad on the side to be
Page 34
6. Measure the amount of water in the container and
using the (-) or (+) pads, adjust the amount on
the display to match the amount in the container.
Then press DONE.
7. The display should now read NEW L or R SPRY
FLOW, along with the correct fl ow rate of the
sprayhead in ounces per minute. After about 5
seconds, the display will return to the CALIBRATE
FLOW screen.
8. To exit the CALIBRATE FLOW program, press NO to
advance to the next function screen, or press and
release the pad located on the front switch
panel to exit the CALIBRATE FLOW function and
return to the MAIN SCREEN.
9. Repeat steps 1 - 8 when calibrating the other
side.
CALIBRATE FLOW?
NO
EXIT TO THE
NEXT FUNCTION
SCREEN
SPRAYHEAD CAL?
NO
CONTAINER RDY?
QUIT
CALIBRATE SPRAY
PRESSBREWSTART
COUNTS DOWN
CALIBRATE SPRAY
TO ZERO
60 SEC TO FINISH
Left or Right
(-)
NEW L SPRY FLOW
L or R
YES
YES
YES
BREW PRESSED
AFTER 1 MINUTE
LEFT OZ XX.X
DONE (+)
XX.X OZ/M
29877.2 121504
P2608