Newco GX Dual, GXDF2-15 User Manual

Man Pt No 701859

Rev 3-01

INSTALLATION and OPERATION MANUAL for GXD SERIES BREWERS

GXDF2-30 GXDF-8D

BREWER SPECIFICATIONS

Model

GXDF2-15 2 19” 19-1/8" 21-3/8” 13.5 24.9 Single
GXDF2-30 2 19” 19-1/8" 26-5/8” 14.0 25.4 Single
GXDF-8D N/A 19” 19-1/8" 30-3/4” 11.5 22.9 Single
GXDF-8D N/A 19” 19-1/8" 30-3/4” N/A 25.3 Three (delta)

* Height does not include the 4” adjustable legs. Add approximately 4” to the height shown when using these legs.
NOTE: Automatic models without faucet are also available.

No of

Warmers Width Length

Shipping weight is approximately 65 pounds f or al l above uni ts

Height*

US

120V

Amps

US

120/240V

Amps

Phase

GXD DUAL BREW SYSTEM DESIGN FEATURES

Equipped with a 6.5-gallon hot water tank, the brewer is powered by a 5500 watt, 240-volt element on single-phase units
and three 3500 watt, 240-volt elements on three phase units. A single control board controls water temperature, brew
volume, Visa-Brew, Auto-Arm, and the inlet water valve. Designed to brew simultaneously two separate brews of one,
two or three gallons of hot coffee, the dual brewer also incorporates a hot water faucet.

Water Fill System detects that water valve has run

for 6 min. w/o making contact with probe.

Tank Heater Tank heating system has run for 10 min.

w/o a 3 degree change in temperature.

Water supply to brewer, water filters &
water probe to see if limed up.
Tank Heater, Main Thermostat &
Limit Thermostat

Timer Controls:
Two independent volume controls for adjusting water volume for the left and right brewing centers. The calibration

system has been streamlined for the service tech with the incorporation of the Auto-Cal feature. To calibrate set the

volume selector switch to the “I” position, turn the brew volume knob clockwise to the maximum setting, which is six (6)
minutes, and initiate brew cycle. Brewer will then deliver water into the coffee or measuring container. Once the correct
volume is reached simply turn the brew volume switch counter-clockwise until the brew stops. The brew volume will now

be calibrated for 1 and 2 volume settings.
Auto-Arm:
The Auto-Arm feature is designed to protect the customer from premature brewing when the water temperature is below

the pre-set optimum brewing temperature setting. When a brew cycle is initiated, before the brew cycle begins Auto-Arm
looks to see if the tank heater is on. If the heater is on Auto-Arm will store the brew cycle signal and begin flashing the
heating and Visa-Brew lights on the front control panel. Once the heater turns off, the brew cycle will automatically begin.
This feature eliminates the need for the customer to check the tank temperature before brewing. When brewing occurs
on both sides, if a brew cycle is initiated while the other side is brewing, Auto-Arm will be disabled, eliminating any
brewing delays.

Visa-Brew:
This feature uses a status brewing light on the left and right brew control center to alert the user that a brew cycle has

either been initiated or is in process and to use caution. This feature also has a calibration adjustment on the control
board, which allows for the calibration to continue the light flashing until the coffee completely drains from the brew
basket. Note: A new brew cycle will not be accepted until the Visa-Light stops flashing. This design eliminates double
brewing. Auto-Cal is incorporated in this system.

Temperature Calibration & Tank System:
The system uses a solid state temperature control to maintain the water temperature in the tank with accuracy inside of

± 3°F. Included in the system is a water detection probe that prevents premature heater turn on when there is no water
present in the tank. Until water makes contact with the probe, the tank heater will not energize. Additionally, a back-up
manual reset limit control has been incorporated into the system, as well as heater run time protection. These features
are designed to protect the equipment in the event of an operator or component failure. For ease of service, access to
the tank is provided from the top of the unit and a top-mounted siphon-drain system is included.

Service Alert System:
The equipment is designed with maximum run time for the heating and water fill system. Listed below is a chart for

interpreting an error code when the brewer will not operate. See brewer “face plate diagram” at rear of manual.

Error Code: Problem Area: Cause: Check:

Heating Lamp flashes
continually
Left & Right Visa lights
flash
Right Visa light flashes Temperature Probe Thermistor is open Replace Thermistor
Left Visa light flashes Temperature Probe Thermistor shorted Replace Thermistor

IN CASES WHERE THERE IS A HEATER OR FILL PROBE ERROR, THE BREWER CAN BE RESET BY

HOLDING DOWN EITHER BREW START/STOP SWITCH FOR 10 SECONDS. ERROR WILL CLEAR.

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PLUMBER'S INSTALLATION INSTRUCTIONS (AUTOMATIC BREWERS)

CAUTION:

1) Flush water line before installing brewer. Brewer should be connected to COLD WATER LINE for best operation.

2) Water pressure should be at least 20 lbs. For less than a 25 ft run, use 1/4" copper tubing and connect to 1/2" or
larger water line. For longer runs, use 3/8" copper tubing & connect to 1/2" or larger water line and provide an
adapter fitting for connection to the brewer.

3) If installed with saddle valve, the valve should have a minimum of 1/8" port hole for up to 25 ft run, and 5/16" port
hole for over 25 ft runs.

4) Connect incoming water line to the flow control device on the back of the brewer. Manufacturer recommends
connecting to copper tubing.

Power to brewer must be OFF before proceeding with plumbing installation.

ELECTRICAL HOOKUP

WARNING:

Warranty will be void if machine is connected to any voltage other than that specified on the name plate.
Depending on the particular model, this brewer may be hooked up to either a 120/240V ac single phase circuit

or a 120/240V ac three phase delta circuit. Refer to the brewer name plate on back of brewer. The pictorial view at the
bottom of this page illustrates the power cord connection to the terminal block for both circuits. A wiring diagram at the
rear of this manual illustrates the complete brewer wiring. Note that the tank heater system is the only portion of the
brewer running on 240V. The balance of components are powered by 120V obtained by tapping one leg, L1, of the
circuit.

To attach power cord or conduit:

1) Remove the front access panel covering terminal block area by removing the four retaining screws.
2 Locate the strain relief connector on rear of unit and loosen the connectors two screws.

3) Feed appropriate power cord/conduit through the strain relief connector until wire leads reach the terminal block in
front of brewer.

4) Make electrical connections as shown at the bottom of this page and on the wiring diagram at the rear of this
manual. Before attaching leads to terminal block, turn screws on the bottom face of terminal block and on the earth
ground connector fully counter clockwise to insure that the receiver for leads is fully open. Hold lead in place and
tighten by turning screws fully clockwise. Tighten strain relief on rear of unit.

- Read and follow installation instructions before plugging or wiring in machine to electrical circuit.

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