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4.4 PARAMETERS
The ‘brewer parame-
ters’ screen is meant
for factory settings.
Contact factory for
password authoriza-
tion for these settings.
Press the “Brewer Pa-
rameters” key to go to the ‘brewer parame-
ters’ screen. This screen is designed to allow
the technician to tell the control board how
the machine has been confi gured or to dis-
able certain features that may be installed.
Touch the various keys to cycle through the
available options and select the one that is
appropriate for your installation. Brew valve
choices are for one or two brew valves. If
two valves are selected, one or both may be
activated for a particular brew cycle. This is
not a common
confi guration and does not include the hot
water bypass valve. Hot bypass and cold di-
lution may be set to installed or not installed.
A hotwater dispense valve may be installed
for controlling a faucet or other hot water
dispense outlet. Recipes may then be set to
deliver premeasured volumes of hot water.
Push and hold feature is automatically avail-
able when not brewing when a hot water
valve dispense valve is installed. The heating
circuit may be programmed for either a solid
state device which would allow pulse heat-
ing, or for a mechanical relay, which would
not but would be a more economical choice.
Warning – running a mechanical relay in
pulsing mode will lead to premature failure
of the component. Press return to return to
the programming/service screen.
4.5 CALIBRATION
Press the calibrate key.
A ‘calibration Pass-
word’ screen with key-
pad will be displayed.
Type in the 4 digit ser-
vice password (3926).
The number will dis-
play in the blank area in the upper right side
of the screen as you type it. Press enter. CLR
will clear entry without exiting the screen.
Pressing cancel will
exit the screen.
The calibrate screen
will display. Items that
are not installed or
that have been disabled in the parameters
section will be greyed out. Other items may
be calibrated to ensure brewing accuracy.
Only the items for which calibration is de-
sired need be addressed.
NOTE FOR TECHIES
– Due to inaccuracies
inherent in some graduated measurement
vessels, weighing the water dispensed can
be a more accurate method to determine
volume dispensed. Water density varies with
temperature however. If weighing in ounc-
es, water is closest to a 1 to 1 ratio of g in
weight to fl uid g at brewing temperatures
(87°-96°C). It is safe to say for hot water dis-
pensing that 1 g weight on scale is (nearly)
equal to 1 fl uid ml of volume. Cooler water
is denser however so a fl uid ml of water dis-
pensed at ambient temperatures will weigh
more than an g, about 1.04 g weight. A fl uid
ml of water will weigh approximately 0.96 g
so multiplying the scale weight by .96 will
yield the volume in fl uid ml.
Press
“Brew
Valve
1” to enter the ‘cali-
brate brew 1’ screen
for brew valve one. A
countdown clock for
the calibration interval
is located in the up-
per right of the screen. The currently pro-
grammed volume for this time frame is lo-
cated immediately below. The + and – keys
are used to adjust this value. Place a suitable
container in place below the dispense outlet
being calibrated. Press the start key and a
timed dispense will start. Heating may be re-
quired dependent on tank temperature. The
dispense cycle may be stopped if needed
by pushing the stop key. The cycle may be
started again without exiting the screen. The
water collected from a complete calibration
