Curtis G4GEMS User manual

1
This Curtis Generation 4 unit is factory preset and ready to go right from the box.
Following are the factory settings for your G4 Coffee Brewing System:
• Brew Temperature = 200°F • Water Bypass = On for LARGE & MEDIUM brew only
• Brew Volume = Set to vessel requirement.
System Requirements:
 •WaterSource20–90psi(minimumowrateof1gpm)
• Electrical: See attached schematic for standard model or visit www.wilburcurtis.com for your model.
Model
G4GEMS
CAUTION: DO NOT
connect this brewer to hot
water. The inlet valve is
not rated for hot water.
CAUTION: Please
use this setup procedure
before attempting to use
this brewer. Failure to follow the
instructions can result in injury or the
voiding of the warranty.
IMPORTANT: Equipment
to be installed to comply
with applicable govern-
mental plumbing/electrical codes
having jurisdiction.
ISO9001:2008REGISTERED
WILBUR CURTIS CO., INC.
6913WestAccoStreet
Montebello,CA90640-5403
For the latest information go to
www.wilburcurtis.com
Tel:800-421-6150
Fax:323-837-2410
Forthelatestspecicationsandinformationgotowww.wilburcurtis.com
This equipment is designed for commercial use. Any servicing other than cleaning and routine maintenance
should be performed by an authorized Wilbur Curtis Co., Inc. Service Technician.
• DO NOT immerse the unit in water or any other liquid
 • Toreducetheriskofreorelectricshock,DONOTopenservicepanels.Therearenouserserviceable
parts inside.
• Keep hands and other items away from hot areas of the unit during operation.
• Never clean with scouring powders or harsh chemicals.
Important Safeguards/Symbols
Service Manual – G4 Gem Single Head Brewer
Wilbur Curtis Co., inC.
Symbols:
WARNINGS – To help avoid personal injury
Important Notes/Cautions – from the factory
Sanitation Requirements
NSF International requires the following water connection:
1. Aquickdisconnectoradditionalcoiledtubing(atleast2xthedepthoftheunit)isrequiredso
that the unit can be moved for cleaning.
2. Thisunitmustbeinstalledwithadequateback-owprotectiontocomplywithapplicablefederal,
state and local codes.
3.Waterpipeconnectionsandxturesdirectlyconnectedtoaportablewatersupplyshallbesized,
installed and maintained in accordance with federal, state and local codes.
3. Connect the unit to an electrical outlet with appropriate amperage rating (see serial tag on machine).
4.Oncepowerhasbeensuppliedtotheunit,ipthetoggleswitchtothe‘ON’position(locatedontherearof
theunit),thewatertankwillbegintoll.Whenthewaterlevelinthetankreachestheprobe,theheating
element(s) will turn on.
5. Water in the heating tank will require approximately a half hour before reaching operating temperature (factory
setting of 200°F). Where applicable, turn on the Universal Control Module (UCM). When the unit reaches
operating temperature, it will display “Ready to brew”.
NOTE:Awaterltrationsystemmustbeusedtohelpmaintaintrouble-freeoperation.Air must be
purged from the cartridge prior to connection to equipment. In areas with extremely hard water,
wehighlyrecommendtheuseofaCurtisapprovedwaterlter.Forourfulllineoflters,pleaselog
on to www.wilburcurtis.com.
SETUP STEPS
1. The unit should be level (left to right - front to back), on a secure surface.
2. Connectthewaterlinetothewaterinletttingontherearoftheunit.Watervolumeowtothemachine
shouldbeconsistent.Usetubingsizedsufcientlytoprovideaminimumowrateofonegallonperminute.

2
1.BrewershouldbeON(Conrmatthereartoggleswitch).TheLCDscreenshouldread“Readytobrew”.
2. Place an empty satellite server on the warmer deck, under the brew basket and touch the warmer icon to preheat the satellite.
COFFEE BREWING INSTRUCTIONS
6. Startthebrewcyclebyholdyournger
on the desired brew icon. As soon as
you hear the click of the brew valve, the
brew cycle has started and you can lift
yournger.
Brew Code: Youmayndthatwhenabrew
button is pressed, a key pad appears on the
screen. This is a brew lock-out feature that
5. Transferthelledbrewbaskettothe
brewer.
3. Placeanewpaperlterintothebrew
basket.
4. Fill the brew basket with the proper
amount of ground coffee.
WARNING – AVOIDSCALDING:REMOVETHEBREWBASKETCAREFULLY.Thebrewbasketcontainshotcoffeegrounds.
The satellite is heavy when full. Take precautions to avoid dropping when moving.
requires a code to be entered before a brew
will start. The default is OFF.
CAUTION: When enabled, as soon as you
enter the brew code a brew cycle starts.
Refer to page 9 for information about setting
the brew code.
During the brew cycle, an animated 1½
gallon satellite server icon will appear on the
screen and a brew timer will count down the
time remaining on the brew cycle.
Your Curtis G4/Gold Cup Series is factory preset for optimum performance.
After connection to water and power; turn on the brewer at the rear toggle switch. You will hear a beep and the status lights will come on for a moment.
Thescreenwilldisplay .Next  isdisplayed.Waterwillllthetank(2-3minutesdependingonwaterowrate).
Whentheproperlevelisreached willappearonthescreen.Ittakesapproximately30minutestoreachthesetpointtemperature.
Control will display when temperature reaches the set point. The unit is now ready to brew.
MODEL NUMBER
CONTROL BD NUMBER
READY TO BREW
HEATING
FILLING

3
Touch Screen Control Module
The touch screen turns on when power is available to the controller. The screen will contain standard control feature such as symbols and but-
tons.Pressingtheseelementswithyourngertipwillactivatetheprogrammingfunctions.Thedefaultscreen,aswellassomeaddedcontrol
buttons are shown in the illustration below.
STATUS LIGHTS
BREW
BUTTONS
CURTIS LOGO
TO ENTER PROGRAMMING
Tap Curtis logo 5 times to bring
up the ACCESS CODE screen.
RETURN TO HOME SCROLL ENTER
WARMERS
CONTROL SYMBOLS
All of these symbols may not be
visible at one time.
SAVE
UNDO
The warmer temperature can be adjusted by using
theG4touchscreen.
There are three temperature selections, plus off.
Each time the warmer icon is pressed the tempera-
ture increases to the next setting.
MAIN MENU screen contains six control icons:
Recipes, Control Settings, Brew Settings, Model Select,
Settings Summary and Exit.
ACCESS CODE screen. Default is 1 2 3 4.
Once the code is entered, press OK. The
MAIN MENU screen will appear.
The access code can be reset in Control
Settings, PASSWORDS.
PROGRAMMING
PROGRAMMING continued . . .

4
Menu Tree
This chart explains how to enter the program mode and menu selections available from the MAIN MENU.

5
Menu Features

6
Menu Features
5 Sec. - 15 Min.
10 Sec. On/10 Sec. Off
20 Sec. On/20 Sec. Off
30 Sec. On/30 Sec. Off
40 Sec. On/40 Sec. Off
50 Sec. On/50 Sec. Off
60 Sec. On/60 Sec. Off
Off, 10 Sec. - 15 Min.,
10 second increments
5 Min. - 25 Sec. 3 Min. - 32 Sec. 1 Min. - 52 Sec.
till end of brew cycle.
till end of brew cycle.
till end of brew cycle.
c
c
c
c
c
c
*

7
System Fault Messages
Maintenance required
Low water flow
Fill run error/overflow
Open sensor
Excess temperature
UPM-UCM communication
minutes on the intial tank fill or 120 seconds on
large brewers and 30 seconds on CGC brewer in
Break in the UPM-UCM communications circuit.
* This error is disabled in the CGC & Seraphim models.

8
TherearetwomethodsthatcanbeusedtochangethedefaultsettingsonG4brewers.Theycanbeprogrammedatthebrewerby
the touch screen universal control module (UCM) or the settings can be changed using the universal serial bus (USB) data port on
thesideofthebrewer.UsingtheUSBconnectionandaashmemorydatastoragedevicewilleasilyreprogramthesettingssimply
by copying data.
TheashdrivecanuploadordownloadtheentiresettingfromoneG4brewer,intoanotherG4brewer.Thiseliminatestheneedto
walk through the usual steps in reprogramming that would be required when you use the touch screen to make a change. This is
anadvantageforaservicetechnicianwhenstandardizingtheprogramsettingsonmultipleG4brewers.
Use a USB drive with USB 2.0 support and a type-A USB connection. Storage capacity should
be2GBminimum.
IMPORTANT: Theashdrivemustbecompletelyblank.Beforestarting,eraseanylesthat
may be in the USB drive.
SOFTWARE INFORMATION TRANSFER
UPLOAD TO USB
1. Makesurethebrewerison.DeterminethattheG4breweryouwishtocopyisproperlyprogrammedforyourdesiredsettings.
2. ConnectanemptyashdriveintotheUSBportonthebrewer.TheUCMonthebrewerwilluploadalloftheparticularsetup
dataontotheashdrive.TheyellowLEDontopofthetouchscreenwilllightindicatingthatdataistransferring.Thiswillonly
take a second to complete.
DOWNLOAD TO BREWER
1. Select the brewer you wish to make the program changes on. The brewer should be on.
2. PlugtheloadedashdriveintotheUSBportonthebrewer.ThedatacopiedfromtherstG4brewerwillautomaticallydown-
load, overwriting all the settings that were on the second brewer.
3. TheredLEDontheUCMwillindicatethatthedownloadisinprocess.Thiswillonlytakeasecond.
4. Once the download is complete, the UCM will reboot in order for the changes to take effect.
5. Removetheashdrive.Thedownloadiscomplete.ThedataontheashdrivecanbedownloadedintoasmanyG4brewers
as needed.
USB – Easy Programming
ThisscreenwillbepresentedwhenevertheUSBashisinserted.
TheUCMwillalwayscreateabackupontheUSBashdrive
before downloading settings/recipes or screen-saver.
Case 1
Settings/recipeslepresent,screen-savernotpresent.User
hasselected“DownloadfromUSB”forsettings/recipesle.
Case 2
As above, but user has selected “Upload to USB” for settings/
recipesle.Withthisaction,theoverwritewarningappears.

9
Brew Access Code

10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
ITEM NO. PART NO. DESCRIPTION
1 WC-58117 COVER, TOP WRAP
2 WC-8559* RELAY,SOLIDSTATE40AW/INTEGRATEDHEATSINK
3 WC-61396 COVER, CENTER FRONT
4 WC-3417 BREWCONE,ASSYW/SPLASHPOCKETBROWNSTYLIZEDGEMHOTCOFFEE
5 WC-1809 FAUCET,PS/HPSSERIESHOTWTR1/2-20UNFAP/ALP
6 WC-39448 LABEL,BOTTOMWRAP
7 WC-1501 FUSE,HOLDERASSYw/5AFUSE
8 WC-847* VALVE,INLET2GPM120V-10W
8A WC-883 VALVE,INLET2GPM240V10W
9 WC-103* SWITCH,TOGGLENON-LITDPST25A125/250VACRESISTIVE
10 WC-13463 HARNESSASSY,COMPLETEG4TP2S10/G4TPC25S10
11 WC-14045-101 CURRENTSENSORASSYG4
12 WC-3528 LEG,4”ADJUSTABLE3/8-16THRDSTYLIZED
13 WC-5428 DECK, WARMER W/A
14 WC-37102* KIT,WARMERELEMENT100W120V
14A WC-37163 KIT,WARMERELEMENT100W220VGENUSE
* RECOMMENDED PARTS TO STOCK
Illustrated Parts
Main View