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W ILBUR CURTIS COMP
ANY, I NC.
OMPANY
Gem-12D Digital Brewer – Instructions
WARNING HOT LIQUID,
Scalding may occur.
Avoid splashing.
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.
I M P O R T A N TT::
Equipment to be
installed to comply with
applicable federal, state, or local
plumbing/electrical codes having
jurisdiction.
CAUTION: DO NOT
connect this brewer to
hot water. The inlet valve
is not rated for hot water.
This appliance is designed for commercial use. Any servicing other than cleaning and maintenance should be performed by an
authorized Wilbur Curtis service center.
• Do NOT immerse the unit in water or any other liquid
• To reduce the risk of fire or electric shock, do NOT open top panel. No user serviceable parts inside. Repair should be done
only by authorized service personnel.
• Keep hands and other items away from hot parts of unit during operation.
• Never clean with scouring powders, bleach or harsh implements.
Conventions
W ARNINGS – To help aavoid
void personal injur
injuryy
Important Notes/Cautions – from the factory
Sanitation Requirements
Your Curtis ADS System is FFactor
actor
actoryy Pre-Set and Read
Readyy to Go… Right from the Carton.
Following are the Factory Settings for your interLock Coffee Brewing Systems:
ture = 200°F
• Water Bypass = ON - Recommended, 36 cup brew
• Brew Tempera
emperature
• Brew Volume = Set to 36 cup vessel requirements. • Sleep Mode = Off
System Requirements:
• Water Source 20 – 100 PSI (Minimum Flow Rate of 1 GPM)
• Electrical: See attached schematic for standard model or visit www.wilburcurtis.com for your model.
SETUP STEPS
The unit should be level (left to right and front to back), located on a solid counter top. Connect a water line from the water filter
to the brewer. NOTE: Some type of water filtration device must be used to maintain a trouble-free operation. (In areas with
extremely hard water, we suggest that a sedimentary and taste & odor filter be installed.) This will prolong the life of your brewing
system and enhance coffee quality.
The National Sanitation Foundation requires the following water connection:
1. A quick disconnect or additional coiled tubing (at least 2x the depth of the unit) so that the machine can be moved
for cleaning underneath.
2. In some areas an approved backflow prevention device may be required between the brewer and the water supply.
1. A 3/8” NPT x 1/4” Flare elbow has been supplied for water line connection. Use tubing sized sufficiently to provide a
minimum of 1.0 GPM.
2. To hookup the InterLock grinder, Locate the jack labeled “Class 2 Wiring Only” on brewer and grinder. Connect the two with
the cable plug.
3. Connect the unit to an appropriate electrical power circuit.
4. Turn on the toggle (STANDBY/ON) switch behind the unit. The heating tank will start to fill. When the water level in the
tank rises to the correct volume, the heating elements will energize automatically. With ADS Systems there is no danger
of element burnout caused by an empty tank.
5. The heating tank will require 20 to 30 minutes to reach operating temperature (200°F) as indicated by the READY-TOBREW indicator.
6. Prior to brewing, dispense 12 ounces of hot water through the hot water faucet.
7. Brew a cycle of at least 12 ounces, to purge the water lines of any air that may be trapped after filling.
WARNING TO AVOID
SCALDING, Do not
remove brewcone while
brew light is flashing.
BREWING INSTRUCTIONS
1. Brewer should be ON (Confirm at rear toggle switch, then press the ON/OFF button). Ready-to-Brew should be ON.
2. Place an empty Satellite on the warmer deck, under the brewcone and press the warmer switch.
C
ISO 9001 REGISTERED
WILBUR CURTIS COMPANY
Montebello, CA 90640
3. Place a clean filter
into the brewcone.
4. Fill brewcone with
ground coffee.
5. Transfer filled
brewcone to
brewer.
6. Press Brew button.
Brewing will begin
immediately.
FOR THE LATEST SPECIFICATIONS AND INFORMATION GO TO
WWW.WILBURCURTIS.COM
1
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STEPS TO
PROGRAMMING
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PROGRAMMING ONLY REQUIRED IF FACTORY SETTINGS MUST BE CHANGED
IMPORTANT – Before entering the program mode, allow the unit to reach brewing temperature, then press the
BREW button to dispense at least 12 ounces of water to clear any air that may be trapped within the water lines.
WARNING These steps
involve working with hot
water. Scalding may occur if
care is not taken against spilling.
NOTE: For ALL functions you must first enter the programming mode.
Brew Temperature – Factory Pre-Set to 200°F
Function to set brew temperature, 170° to 204°F. Brew temperature will be indicated by READY-TO-BREW light
blinking.
CONFIRM/RESET BREW TEMPERATURE - Factory Preset to 200º
ENTER THE PROGRAMMING MODE #1:
Press
for two seconds, then RELEASE.
ENTERING THE PROGRAM MODE #1
Turn OFF the power from the Control Panel by pressing
.
READY TO BREW
Press and HOLD
and press and RELEASE
.
will start blinking. Each blink equals 2º F, starting at 170º.
To change Temperature, press and HOLD
.
.
Continue HOLDING
until
READY TO BREW
READY TO BREW will start QUICK flashing. Each QUICK flash equals 2º F.
After reaching 204º, temperature starts over at 170º.
starts blinking; RELEASE.
RELEASE
when the desired temperature is reached.
To set and exit, press
.
BREW VOLUME - Factory Preset to Brewer Requirements
CHANGE BREW VOLUME
ENTER THE PROGRAMMING MODE #1
Press and HOLD
until hot water starts running from sprayhead; then RELEASE.
When desired volume is reached, press
To set and exit, press
again to stop flow.
.
BREW CYCLE COUNTER
TO ACCESS BREW CYCLE COUNTER
ENTER THE PROGRAM MODE #2
Turn OFF the power from the Control Panel by pressing
Press and HOLD
and press and RELEASE
ENTER THE PROGRAMMING MODE #2:
.
.
READY TO BREW
Continue HOLDING
until
READY TO BREW
will now start a pattern of LONG and SHORT blinks.
This pattern identifies the number of brew cycles. SHORT blinks indicate the brew number from one [1] to
nine [9]. LONG blinks separate the 1’s, 10’s, 1,000’s and 10,000’s.
STOPS blinking; RELEASE.
SLEEP MODE (220V Models Only) – Factory Preset to Disabled
This function conserves energy by automatically reducing tank temperature to 140º F when the unit sits idle for
more than two hours. To recover, simply press any BREW (or Grind button if InterLocked) or ON/OFF button. Once the
water in the tank reaches brewing temperature, the brew cycle will automatically start. Recovery is indicated by a
yellow RECOVERY light on the membrane control panel. Recovering from a SLEEP mode is faster and more efficient
than heating after switching off the power.
SLEEP MODE – Factory Preset to DISABLED
To ENABLE Sleep Mode:
UNIT MUST BE ON. Press and HOLD
Sleep Mode is now ENABLED.
until
SLEEP light turns ON; press
again.
until
SLEEP light turns OFF;press
again.
To DISABLE Sleep Mode:
UNIT MUST BE ON. Press and HOLD
Sleep Mode is now ENABLED.
WARMERS
Adjusting the Temperature
Gemini Warmers feature three temperature settings. Warmers are rated at 100W with High (100%); Med (60%);
Low (30%).
Pressing the WARMER button once will place it on HIGH; A second time MED; Third time LOW as indicated by
the warmer lights. A fourth press of the warmer button turns off the warmer.
When the system is turned off at the ON/OFF button, it will remember the last warmer setting. Additionally, if the
warmer is off, the unit is designed to automatically turn the warmer on (MED setting) when the next brew cycle is
started.
BYPASS FLOW ADJUSTMENT
1. Slide brew cone out to expose bypass outlet. Place one measuring cup under the bypass fitting, and
another measuring cup under the brew cone outlet. Press the LARGE brew button for 15 seconds, then press
the ON/OFF button to stop the brew cycle.
2. Divide the number of ounces collected from the bypass outlet into the total ounces collected from the
sprayhead and bypass. This will determine the percentage of bypass.
3. To increase or decrease the volume of bypass water, turn the adjustment screw on the bypass valve as
indicated. Clockwise for less water; counterclockwise for more water.
2
4. You must reprogram the brew volume to maintain the proper total amount of coffee brewed into the insulated
server. Reprogramming is required every time you make a bypass adjustment or change to a different
sprayhead.
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PARTS
DIAGRAMS
GEM-12D
1
15
14
16
2
11
13
10
9
22
12
4
6
6A
3
8
7
5
26
32
22
31
Index
Nº
Part N
Nº
1 WC-5421
2 WC-3357
3 WC-5423
4 WC-38310
5 WC-37102
6 WC-1809
6A WC-2912BK*
7 WC-3500
8 WC-39198
9 WC-8560
10 WC-5829
11 WC-1501
12 WC- 102
13 WC-39197*
14 WC- 670
15 WC- 847
16 WC-3765
17 WC-2906
18 WC-37122
19 WC-2987
20 WC-37121
21 WC-3766
22 WC- 888*
23 WC-2977-01
24 WC-1438-101
25 WC-5231
26 WC-54005
27 WC-4382
28 WC- 522
29 WC- 906
30 WC-43055
31 WC-5502-01
32 WC-37008
*
Description
COVER, TOP
BREWCONE W/HANDLE
DECK, WARMER W/ASSEMBLY
LABEL, CAUTION HOT SURFACE
WARMER ELEMENT, 120V 100W
FAUCET, HOT WATER
SPOUT, HOT WATER NO SPLASH
LEG, 4” ADJUSTABLE
LABEL, BOTTOM PANEL
HEAT SINK, 1PH GEM
COVER, FRONT GEM-12D
FUSE HOLDER ASSY W/5A FUSE
SWITCH, TOGGLE
MEMBRANE CONTROL PANEL GEM-12D
CONTROL BOARD
VALVE, INLET
KIT, VALVE REPAIR
SPRAYHEAD, BLUE PLASTIC
VALVE, DUMP BREW RIGHT
BY-PASS ASSEMBLY, GEM-12D
VALVE, DUMP BREW LEFT
KIT, DUMP VALVE EATON REPAIR
VALVE, HOT WATER
FITTING ASSY, SPRAYHEAD
SENSOR, HEATING TANK
CONPOUND, SILICONE ¾ OZ TUBE
TANK ASSY, COMPLETE
GUARD, SHOCK HEATING ELEMENTS
THERMOSTAT, RESET
HEATING ELEMENT 100W
GUARD, SHOCK RESET THERMOSTAT
PROBE ASSY, WATER LEVEL
KIT, TANK LID
Components used on earlier models of Gem-12D, equipped
with electric faucet.
21
27
23
28
29
30
20
18
19
25
25
17
24
3
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For parts contact 708-827-5673
WARRANTY We hereby certify that the products manufactured by the Wilbur Curtis Company, Inc., are, to thebest of our knowledge, free from all defects and faulty workmanship.
The following warranties and conditions are applicable:
• 90 Days for Labor and 1 Year Parts from Date of Purchase from Factory: This warranty covers all electrical parts, fittings and tubing.
• 40 Months or 40, 000 Pounds of Coffee on a set of Grinding Burrs. (ADS Grinders)
• 2 Years from Date of Purchase: This warranty covers electronic control boards and leaking or pitting of a stainless steel body of a Brewer or Urn.
• 90 Days from Date of Purchase: On replacement parts that have been installed on out of warranty equipment
All in-warranty service calls must have prior authorization from the manufacturer. For an RMA (Return Merchandise Authorization) number, call the Technical Service Department at 1-800-995-0417.
The Wilbur Curtis Company will allow up to 100 miles, round trip, per in-warranty service call.
CONDITIONS & EXCEPTIONS
The warranty covers original equipment at time of purchase only. The Wilbur Curtis Company, Inc., assumes no responsibility for substitute replacement parts installed on Curtis equipment that
have not been purchased from the Wilbur Curtis Company. Inc The Wilbur Curtis Company will not accept any responsibility if the following conditions are not met. The warranty does not cover and
is void under these circumstances:
1) Improper operation of equipment. The equipment must be used for its designed and intended purpose and function.
2) Improper installation of equipment. This equipment must be installed by a professional, certified technician and must comply with all local electrical, mechanical and
plumbing codes.
3) Wilbur Curtis Company will not be responsible for the operation of equipment at other than the stated voltages on the serial plate.
4) Abuse or neglect (including failure to periodically clean or remove lime accumulations). Manufacturer is not responsible for variation in equipment operation due to
excessive lime or local water conditions.
5) Replacement of items subject to normal use and wear. This shall include, but is not limited to, light bulbs, shear disks, “0” rings, gaskets, canister assemblies. whipper
chambers and plates, mixing bowls, agitation assemblies and whipper propellers.
6) Any faults resulting from inadequate water supply. This includes, but is not limited to, excessive or low water pressure, and inadequate or fluctuating water flow rate.
7) All repairs and/or replacements are subject to our decision that the workmanship or parts were faulty and the defects showed up under normal use.
8) All labor shall be performed during regular working hours. Overtime charges are the responsibility of the owner.
9) Charges incurred by delays, waiting time, or operating restrictions that hinder the service technician’s ability to perform service is the responsibility of the owner of the
equipment. This includes institutional and correctional facilities.
10) All claims under this warranty must be submitted to the Wilbur Curtis Company Technical Service Department before return of the unit to the factory.
11) All equipment returned to us must be repackaged properly in the original carton. No units will be accepted if they are damaged in transit due to improper packaging.
12) Damaged in transit.
13) The resetting of safety thermostats and circuit breakers, programming and temperature adjustments are the responsibility of the equipment owner.
NO UNITS OR PARTS WILL BE ACCEPTED WITHOUT A RETURN MERCHANDISE AUTHORIZATION (RMA). RMA NUMBER MUST BE MARKED ON THE CARTON OR SHIPPING LABEL.
All in-warranty service calls must be performed by an authorized service center, where service is available. Call the factory for location near you.
WILBUR CURTIS CO., INC.
6913 Acco St., Montebello, CA 90640-5403 USA
Phone: 800/421-6150
Fax: 323-837-2410
Technical Service Phone: 800/995-0417 (M-F 5:30A - 4:00P PST)
Web Site: www.wilburcurtis.com
4
2/21/02. 10.0 . edr 3279 rev NC
7/30/03 . 12.9 . edr 6010 rev A
E-Mail: techservice@wilburcurtis.com
FOR THE LATEST SPECIFICATION INFORMATION GO TO WWW.WILBURCURTIS.COM
Printed in U.S.A.
7/03
F-3191-S Rev A
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