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USER GUIDE ® G3 Gemini Series Coffee Brewing System READ AND SAVE THESE INSTRUCTIONS NOTICE TO INSTALLER: Please leave this booklet with the machine.
KEY FEATURES/SPECIFICATIONS/SYSTEM REQUIREMENTS FS20 Key Features • Digital control module provides precise control over all aspects of brewing: time, temperature, volume plus specialty coffee needs from pre-infusion to pulse-brewing to water bypass. • gourmet results every time. • Industry’s most effective mineral tolerant design. •...
• This appliance is designed for commercial use. Any service other than cleaning and preventive maintenance should be performed by an authorized Wilbur Curtis service technician. • To reduce the risk of re or electric shock, DO NOT open the service panels. There are no user serviceable parts inside.
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IMPORTANT SAFEGUARDS CE Requirements • This appliance must be installed in locations where it can be overseen by trained personnel. • For proper operation, this appliance must be installed where the temperature is between 5°C to 35°C. • This appliance is not suitable for outdoor use. •...
INSTALLATION INSTRUCTIONS WARNING: WARNING: Improper electrical connection may result in an electric shock hazard or damage the unit. This appliance must be properly grounded. NOTICE: DO NOT connect this appliance to a hot water supply. The water inlet valve is not rated for hot water.
INSTALLATION INSTRUCTIONS Installation Leveling WARNING: Use the leveling legs to level the brewer only. Do not use them to adjust brewer height. Do not extend them higher than necessary. Position the brewer on the counter top. Level it left to right and front to back by turning the bottom of the legs.
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INSTALLATION INSTRUCTIONS Connect the Brewer Wiring (cont.) Brewers With A Cord Set Attached - 12 Connect the power cord to the appropriate type of electrical outlet. WARNING: Connect the power cord to the appropriate type and size electrical outlet. If the electrical outlet is not compatible with the power cord, have it upgraded by a licensed electrician.
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INSTALLATION INSTRUCTIONS 19 If the UCM is not already lit, push the ON/OFF button to the correct volume, the heating elements will turn on automatically. Depending on the incoming water water tank typically requires 20 to 30 minutes to the water has heated, “Ready to Brew” should be on the display.
OPERATING INSTRUCTIONS OI17 Brewing Instructions WARNING - TO AVOID SCALDING, AVOID SPLASHING. Keep body parts clear of the brewer during brewing. Do not remove the brew basket while “Brewing” appears on the display. NOTICE - Do not use IntelliFresh satellites on non-IntelliFresh brewers. The G3 Gemini brewer is factory preset for optimal performance.
CLEANING INSTRUCTIONS WARNING: HOT SURFACES - To avoid injury, allow the brewer and dispenser(s) to cool before cleaning. NOTICE - Do not use cleaning liquids, compounds or powders containing chlorine (bleach) or corrosives. USE OF THESE PRODUCTS WILL VOID THE WARRANTY. Cleaning The Brewer - Daily WARNING: DO NOT immerse the brewer in water or any other liquid.
Mild solution of dish-washing detergent and warm water ™ • TABZ Z95 Coffee Equipment Cleaner Tablets (Curtis PN WC-79000) • One-Pro Beverage Equipment Cleaner WARNING: DO NOT immerse the satellite in water or any other liquid. Do not place the satellite in a dishwasher.
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CLEANING INSTRUCTIONS Cleaning the Faucet Parts and Site Gauge 10 Wash - Wash the lid and all faucet and gauge glass parts with the detergent solution. Clean the inside of the gauge glass with a gauge brush soaked with detergent solution. 11 Rinse - Thoroughly rinse all parts with clean, WASH warm water.
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PROGRAMMING GUIDE Wilbur Curtis To enter programming mode: With unit OFF, press and hold Wilbur Curtis bottom right BREW button (4). Ready to Brew* Then press and release ON/OFF button (2). Continue to hold down BREW button until Enter Code appears.
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PROGRAMMING GUIDE Programming Options See the previous page for instructions on accessing each individual menu. Some menus save and exit automatically when a parameter is updated. Other menus exit to the previous menu when a parameter is saved. To exit, press until EXIT appears on the display, then press Global Recipes Menu Select from the following coffee recipes: Gourmet STD (standard), Light Roast, Dark Roast, High Yield, Filter...
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PROGRAMMING GUIDE Non-Brew Programming Menu Non-Brew Prog Banner Name Warmers Default Brew Count Total QT Alarm On/Off <-- Select --> <-- Select --> <-- Select --> <-- Select --> <-- Select --> Press Select Select Select Select Temperature Cold Brew Lock Warmers Auto-Off Display Brew Time Satellite Color...
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Banner Name - changes the company name that appears on the display. The factory default is Curtis. No name appears when all blanks are entered. Once accessed, press to choose the letter to change.
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PROGRAMMING GUIDE Non-Brew Programming Menu (cont.) Display Brew Time - turns the display of the brew time during brewing On or Off. The factory default setting is On. Once accessed, press to choose the desired setting, then press to exit. Display Messages - turns display of the message “Rinse Server Before Brewing”...
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PROGRAMMING GUIDE Brew Button Programming Menu (cont.) Brew by Time - adjusts the amount of coffee brewed by time rather than by volume. The factory default to change the number value. Press repeatedly to change the number value. Press repeatedly to exit.
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PROGRAMMING GUIDE Model Select Menu - changes the model number and number of batches (to match the label on the universal control module, the factory default is Gemini-Twin, One batch). Once accessed, press until the model number matching the model number label on the brewer appears, then press Press until the number of to exit.
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ROUGH-IN DRAWINGS RD26 GEMTS - Twin Coffee Brewer 1.00 in [2.5 cm] 22.25 in* 29.75 in [56.5 cm] 11.13 in [75.6 cm] [28.3 cm] 6.88 in 5.50 in 18.13 in [17.5 cm] [14.0 cm] [46.0 cm] 4.00 in *25.63 in [65.1 cm] on model GEMTS16A1000 [10.2 cm] GEMSS - Single Coffee Brewer 1.00 in...
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ILLUSTRATED PARTS LIST IP33 GEMTS - Main Chassis - Exploded View Water tank assembly, see section IP26 See satellite user guide for satellite replacement parts. GEMSS/GEMTS - GENERIC, ILLUSTRATED PARTS/RECOMMENDED PARTS 090519E...
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ILLUSTRATED PARTS/RECOMMENDED PARTS IP33 GEMSS - Main Chassis - Exploded View See satellite user guide for satellite replacement parts. Water tanks assemblies: Single voltage units, see section IP31 Dual voltage units, see section IP32 GEMSS/GEMTS - GENERIC, ILLUSTRATED PARTS/RECOMMENDED PARTS 090519E...
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GEMSS/GEMTS WC-596K 2 KIT, NOISE FILTER EMI 250V/30A 1PH LABEL, UCM OVERLAY SINGLE 3-BATCH WC-39436 WC-37102 1, 3 GEMSS CURTIS KIT, WARMER ELEMENT 100W 120V GEN USE WC-973 2 LABEL, UCM OVERLAY GEMSS SINGLE ELEMENT, WARMER ASSY 100W 220V WC-39434 2-BATCH CURTIS O’RING, 0.487I.D.x 0.693OD x0.103CS BUNA-N...
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ILLUSTRATED PARTS/RECOMMENDED PARTS IP26 WC-62033 - Tank Assembly WC-62033 - Tank Assembly - Parts List ITEM # PART # DESCRIPTION ITEM # PART # DESCRIPTION WC-54287 TANK, ASSY TPS1T/GEMTS WC-1438-101 SENSOR, TEMPERATURE TANK WC-62033 TANK, COMPLETE GEMTS W/ULTEM FITTINGS WC-4382 GUARD, SHOCK HTNG ELMNT DOUBLE WC-37008 KIT, TANK LID ROUND (INCLUDES GASKET)
ILLUSTRATED PARTS LIST IP31 WC-62035 - Tank Assembly WC-62035 - Tank Assembly - Parts List ITEM # PART # DESCRIPTION ITEM # PART # DESCRIPTION WC-62035 TANK, COMPLETE GEMSS W/ULTEM FITTINGS THERMOSTAT, HI LIMIT HEATER CONTROL DPST WC-522 277V 40A WC-5853-102 COVER, TOP HEATING TANK GEN USE WC-43055...
ILLUSTRATED PARTS LIST IP32 WC-62034 - Tank Assembly WC-62034 - Tank Assembly - Parts List ITEM # PART # DESCRIPTION TANK, COMPLETE GEMSS DV W/ ULTEM ITEM # PART # DESCRIPTION WC-62034 FITINGS THERMOSTAT, HI LIMIT HEATER CONTROL WC-522 WC-5853-102 COVER, TOP HEATING TANK GEN USE DPST 277V 40A WC-43055...
ELECTRICAL SCHEMATICS ES32 SINGLE, EXPORT UCM Pin Assignments 20 Pin Connector GRINDER INTERLOCK COMMON-SOLID STATE RELAY & GRINDER +5 VDC BREW CONE LOCK NOT USED INLET VALVE BYPASS VALVE NOT USED WARMER NOT USED NOT USED NOT USED TANK TEMPERATURE SENSOR ELECTRICAL RATING TABLE TANK TEMPERATURE SENSOR # of...
ELECTRICAL SCHEMATICS ES33 SINGLE, DOMESTIC, DUAL VOLTAGE UCM Pin Assignments 20 Pin Connector GRINDER INTERLOCK COMMON-SOLID STATE RELAY & GRINDER +5 VDC BREW CONE LOCK NOT USED INLET VALVE BYPASS VALVE NOT USED WARMER NOT USED NOT USED NOT USED TANK TEMPERATURE SENSOR TANK TEMPERATURE SENSOR UCM GROUND...
ELECTRICAL SCHEMATICS ES35 TWIN, 3 PHASE WITH TRANSFORMER UCM Pin Assignments 20 Pin Connector GRINDER INTERLOCK COMMON-SOLID STATE RELAY & GRINDER SOLID STATE RELAY +5 Vdc BREW CONE LOCK RIGHT BREW CONE LOCK LEFT INLET VALVE BYPASS VALVE RIGHT NOT USED NOT USED BYPASS VALVE LEFT NOT USED...
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ELECTRICAL SCHEMATICS ES36 TWIN, 3 PHASE WITHOUT TRANSFORMER...
ELECTRICAL SCHEMATICS ES37 TWIN, EXPORT ELECTRICAL RATING TABLE # of Tank Element Voltage Amps Wa s Hertz # of Tank Model Conductor Phase Ra ng Elements Wires GEMTS30 24.7 5683 50/60 2500W/220V TP2T30 24.2 5574 50/60 2500W/220V TPC2T30 24.2 5574 50/60 2500W/220V TP1T30...
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TROUBLESHOOTING GUIDE WARNING: Electric Shock Hazard - Scald and Burn Hazard - IMPORTANT: always Valve Test Procedure ELECTRICAL SCHEMATIC Troubleshooting Guidelines ERROR CODES • • • Use this troubleshooting guide along with the appropriate ELECTRICAL SCHEMATIC. • Valve Test Procedure in either direction Water Not Hot Enough replace the temperature sensor...
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TROUBLESHOOTING GUIDE During Brewing ELECTRICAL SCHEMATIC No Power - Display Not Lit Water Tank Does Not Fill Brewer Does Not Start When Brew Button is Pressed Brewing Brewing Sensor Error Message...
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TROUBLESHOOTING GUIDE Water Tank Does Not Fill IMPORTANT: Coffee/Tea Too Strong Dispenser Not Filled To Normal Level During Brewing Dispenser Not Filled To Normal Level During Brewing SPECIFICATIONS sure that the spray head is correctly aligned and that the tubing is routed properly to allow for maximum water ELECTRICAL SCHEMATIC...
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TROUBLESHOOTING GUIDE All Of The Time ELECTRICAL SCHEMATIC No Water/Tea Flows From Brewer During Brewing Water Tank Does Not Fill ELECTRICAL SCHEMATIC Low Water Flow Warning Water Level Error Message Water Level Error Message ERROR CODES SPECIFICATIONS...
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TROUBLESHOOTING GUIDE Water Does Not Heat At All Check to see if the water level in the tank is in contact with the water level probe. If not, see Tank Does Not Fill. • The water will not heat unless it is in contact with the probe. If the water heats, but is not hot enough, see Water Not Hot Enough.
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TROUBLESHOOTING GUIDE TG14 Warmer Does Not Heat NOTE coffee. First, check to make sure that the warmer function is not set to off in brewer program (warmers default). See the PROGRAMMING GUIDE section. Turn on power to the warmer that is not working. See the OPERATING INSTRUCTIONS to determine how the warmer operates for your model.
ERROR CODES System Fault Messages An error message will appear on the screen in the event of a malfunction under the following conditions: ERROR MESSAGE WARNING DESCRIPTION CAUSE Water Level Error G3 BREWER, ERROR CODES 042017A...
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Return Merchandise Authorization (RMA): All returned equipment must be properly re-packaged in the original carton and received by Curtis within 45 days following the issuance of a RMA. NO UNITS OR PARTS WILL BE ACCEPTED WITHOUT A RETURN MERCHANDISE AUTHORIZATION (RMA).
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