15-Feb-17
NEI 1.800.325.7867 www.newcocoffee.com [Manual #: 600769]
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Introduction
The GXD Digital Series Brewers incorporate the latest features in brewer control technology along with the
proven brewing system you have come to rely on. Although providing for enhanced functionality brewer
controls remain intuitive and setup of key operating parameters couldn’t be easier. Multiple brew volumes,
visa-brew delay, tank temperature set point, brew mode, filter parameters and more, are all set from the front
control panel using a digital display for precise control. The following pages will explain the control features
and then step through the process required to program your unit.
Brew Volume – Each side of the GXD brewer has two independently programmable brew volumes denoted
Brew 1 and Brew 2. Either of these brew times may be turned off or set for any volume between 30 seconds
and 15 minutes for ultimate flexibility. Turning brew 1 off on the left hand side of brewer will activate the
test/calibration mode.
Test / Calibration Mode
–
The test and calibration mode is used to display the actual tank temperature and the
total number of brews using the brew 1 button. This program mode is only available when brew number 1 has
been disabled. To activate the display depress the BREW 1 button. When the button is depressed the display
will show the actual tank temperature which the brewer is set for. Pressing BREW 1 button again will display
the number of brews for brew 2. The selected item will display until beginning a brew cycle or pressing cancel.
Hot Water Bypass – If set to on, “off” on Brew 1, this feature will activate a second dump valve, “on” for Brew
2, to allow for brewing larger volumes without a corresponding increase in brew time. This will help to
preserve the beverage quality on larger brew volumes.
Visa-Brew Time – Provides for additional time to flash brew light, after the water delivery portion of brew cycle,
to allow for the coffee to finish draining from the brew basket. The flashing indicator light, and the delay in the
audible coffee ready signal, aid in preventing premature removal of either the brew basket or the dispenser.
Water Temperature Set Point – Allows for digitally setting the temperature of the water in the brewers tank
system to any value between 170 and 205 Deg F.
Auto Arm – When enabled this feature ensures that the brewer is up to temperature prior to brewing to ensure
proper extraction is obtained. If the water temperature in the tank is below the water temperature set point
when the brew cycle is initiated, the water delivery portion of the brew cycle is delayed. The heating light will
begin to flash indicating that the unit is in the brew mode but is not up to temperature. At the same time, the
tank heater will begin heating. When the tank reaches the preset temperature, the brew cycle will resume.
Auto arm may be overridden by depressing the appropriate brew button for several seconds until the brew
cycle starts.
Pre-infusion mode – This mode delivers a small amount of hot water over the coffee grounds and then pauses.
This allows the gasses in the coffee to escape and allows the grounds to absorb the water before continuing.
After this pause the brew cycle resumes normally. Pre-infusion can yield better extraction rates than normal
brewing modes. The pause time is added to the brew and visa brew time. The pre-infusion times are preset at
the factory. Pre-infusion for Brew 1 and 2 may be turned on and off independently.
Note
: Do not use the Pulse
mode & Pre-infusion mode together.
Pulse Brew Mode – This mode cycles the valve on and off during the brew cycle. This slows the entry of cold
water into the tank and minimizes the mixing action caused by introducing a large volume of cold water into the
tank at one time resulting in an increase in brew temperature. The additional turbulence and mixing created
along with the increased temperature can result in higher extraction rates for the coffee. The time set for pulse
brewing should exceed the time set for brew time. The time difference between the pulse brew time and the
brew time is the amount of time available as off time. The difference is divided equally and distributed
throughout the brew cycle to provide a pulse after every 20 seconds of brewing. Pulse brew mode for Brew 1
and 2 may be turned on and off independently.
Note:
Do not use the Pulse mode & Pre-infusion mode together.
