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American Metal Ware
®
P400GNB-E
Start Up Procedures (cont.)
NOTE
: After stopping the cycle prematurely, there may be a period of time needed to wait for the drip
through of hot water to occur. This is a result of the brew basket collecting the hot water during a
normal brewing cycle.
Hot Water Light:
This light will illuminate when the water has reached the proper brewing water temperature. The
Water Hot light is also used to display Error Codes. Go to
Error Code section
of the
Troubleshooting Guide
for
the specific details.
Hot Water Faucet:
Hot water may be taken from this faucet at any time as needed.
Automatic Bypass:
When brewing on the largest setting, the unit will enable the bypass valve automatically. This
is desirable to accelerate the water flow rate through the brew basket with brewing the largest volume. This allows
the correct extraction rate to be achieved for most customers.
Pre-Infusion:
Pre-Infusion increases the extraction level achieved with this unit. The brewing cycle is temporarily
halted during the first portion of the cycle then resumed. This feature is standard on the unit but may be disabled if
not desired. To disable this feature, the touchpad assemblies need to be replaced. Contact our Technical Service
Department.
Low Temp No Brew:
This feature prevents the operator from brewing coffee before the desired water temperature
has been reached. This feature is standard on the unit but may be disabled if not desired.
Temperature and Timing Controls
(Refer to Figure B)
Temperature and the various programmable timers are set by the dial and keypad located on the control board.
This control board is located behind the lower front panel and is accessed by removing the control board access
panel.
The controller stores 12 independent timer values, 6 per brew station. Each of the 6 timers is associated with a
LED light. The top 3 LEDs control the duration of the grinding processes and are displayed in 1/10 second
increments. The bottom 3 LEDs control the duration of the brewing processes and are displayed in 1 second
increments.
Alphanumeric LEDs to indicate timer
settings and to display error codes
Red LEDs to indicate which
timer is being programmed
Brewer selector switch
Water temperature adjustment knob
Figure B
TIMER NAME
SECONDS
0.5 GAL GRIND
1 GAL GRIND
1.5 GAL GRIND
0.5 GAL GRIND
1 GAL GRIND
1.5 GAL GRIND
FACTORY SETTING
LEFT RIGHT
LEFT RIGHT
USER SETTING
Pushbuttons to adjust timer
values and to select timers
