Curtis G4GEMT User manual

1
This Curtis Generation 4 System is factory pre-set 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
G4GEMT
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
TechnicalSupport:1-800-995-0417M-F5:30 a.m.- 4:00 p.m.PT
Email: [email protected]
This equipment is designed for commercial use. Any servicing other than cleaning and routine maintenance
should be performed by an authorized Wilbur Curtis Company 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 Gemini Twin Coffee 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 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
Your Curtis G4/Gold Cup Series is factory pre-set 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
1.BrewershouldbeON.Conrmthisatthetoggleswitchonthebackofthebrewer.ThetouchscreenshouldreadReadytoBrew.
2.Placeanclean,emptycoffeesatelliteonthewarmerdeck.
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.
COFFEE BREWING INSTRUCTIONS
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8formoreinformationabout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.
WARNING–AVOIDSCALDING:Removethebrewbasketcarefully.Thebrewbasketcontainshotcoffeegrounds.
The coffee vessel is heavy when full. Take precautions to avoid dropping when moving.

3
Touch Screen Control Module
The touch screen turns on when power is available to the controller. The screen will contain standard control features such as symbols and
buttons.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 RETURN TO PREVIOUS
UNDO
WARMERS
CONTROL SYMBOLS
All of these symbols may not be
visible at one time.
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
ThischartexplainshowtoentertheprogrammodeandmenuselectionsavailablefromtheMAINMENU.
Menu Tree
Tap “Curtis” logo 5 times
to enter Programming Mode
When installing new control board, default is Gemini Twin - Three Batch
Applies to Gemini models only
Applies to Gold Cup/Seraphim models only

5
Menu Features
b
Runs diagnostic tests
Display brew time
m
Displays various screen saver images
Displays banner name
Displays various icons (original or bag)
gallons, 1000 gallon increments,
gallons, 100 gallon increments, this
only.
only.
(resettable)
reset to restore factory defaults
US units or Metric units
Maintenance interval
Service telephone number
<MED> during brewing
<120 Min on GEMTIF/GEMSIF>
This applies to Gemini units only.
This applies to Gemini-IF units only.
This function is
This applies to Gemini and Gemini-IF units only.
No change
Auto test
models:
models:

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
*
* Default settings

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
Tap “Curtis” logo 5 times
to enter Programming Mode
The PASSWORDS screen will
Brew Access Code

9
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USB(universalserialbus)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,please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 screensaver.
Case 1
Settings/recipeslepresent,screensaver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.

10
Illustrated Parts
Main View
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5
6
7
8
9
10
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