Page 1
USER GUIDE G4 Digital Iced Tea Brewing System with Rotating Brew Basket READ AND SAVE THESE INSTRUCTIONS NOTICE TO INSTALLER: Please leave this booklet with the machine. 102517B FC6 - G4RTB, FRONT COVER F-10005 revA...
Encapsulated control boards – Protect against steam, water and impact. MODEL # DESCRIPTION PHASE VOLTS AMPS HEATING CONFIG WIRE WATTS HERTZ GAL/HR G4RTB Iced Tea Brewing System 1 PH 120 V 13.8 A 1 X 1600 W 2W + G 1650 W 50/60 Hz 12.0 MODEL #...
INSTRUCTIONS could result in personal injury or void the warranty. • 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. • serviceable parts inside.
Page 5
IMPORTANT SAFEGUARDS CE Requirements • This appliance must be installed in locations where it can be overseen by trained personnel. • • • • This appliance must not be cleaned by water jet. • instruction concerning use of the appliance in a safe way and if they understand the hazards involved. •...
INSTALLATION INSTRUCTIONS WARNING: WARNING: properly grounded. NOTICE: SPECIFICATIONS section. IMPORTANT: Installation Instructions Installation Requirements • A secure surface capable of supporting the weight of the appliance. • For units without an attached cord set: Appropriately sized, UL listed, grounding type power cable to meet enough •...
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.
Page 8
INSTALLATION INSTRUCTIONS Connect the Brewer Wiring (cont.) Brewers With A Cord Set Attached 12 On export models with a power cord already installed, install the appropriate type of power plug for your locality. Consult local electrical codes to determine the approved type of power plug for your region.
Page 9
INSTALLATION INSTRUCTIONS 18 When the water in the tank rises to the correct level, the heating elements will turn on automatically. Depending on the incoming water temperature and the electrical minutes to reach the factory set operating temperature. When the water has heated, Ready to brew will be displayed on the LCD screen.
PROGRAMMING GUIDE to set right tea dispenser. up/disable the brew code. The brewer will brew coffee or tea based on the settings programmed into the universal control module (UCM). To change the settings, see the PROGRAMMING GUIDE. G4RTB/G4RSTB, OPERATING INSTRUCTIONS 082216NC...
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.
CLEANING INSTRUCTIONS Cleaning the Tea Dispenser (Daily) Cleaning the Container Prepare a mild solution of detergent and warm water. Remove the dispenser from the brewer and remove the lid. Rinse. Wash - Wipe the exterior surfaces with a sponge and the detergent solution to remove spills and debris.
Page 13
Control symbols - all symbols may not be present at the same time Return to Home Undo Curtis logo Scroll left/right previous Entering Programming Mode The ACCESS CODE screen will appear. The menu icons. The icons vary based on the model appear.
Page 14
PROGRAMMING GUIDE Programming SELECTIONS FOR COFFEE BREWER MODELS Model Select Recipes Control Settings Brew Settings Settings Summary Exit Coffee ® Gemini Gemini IF ™ One Batch GEMX Single Gourmet Std Two Batch TP/TPX Twin Light Roast By Volume/Time Three Batch ™...
Page 15
PROGRAMMING GUIDE USB - Easy Programming program each step individually using the touchscreen. This process also makes it easy to quickly standardize the IMPORTANT: completely Uploading the Software to the Flash Drive as desired. Downloading the Software to the Brewer from the Flash Drive Select the (identical) brewer you wish to make program changes to.
Page 16
ROUGH-IN DRAWINGS G4RTB - Tea Brewer 18.03 in [45.8 cm] 16.61 in 9.11 in [42.2 cm] [23.1cm] 34.29 in [87.1 cm] 23.90 in 22.61 in 22.87 in [60.7 cm] [57.4 cm] [58.1 cm] 13.41 in 11.06 in [34.1 cm] [28.1 cm] 1.29 in...
Page 17
ILLUSTRATED PARTS/RECOMMENDED PARTS Supplies and Accessories - All Models WC-29025 - Spray Head CAB-1 - Cleaning Brush Sold by the case G4RTB - Main Chassis - Exploded View See section IP21 *Orientation varies with date of manufacture...
ILLUSTRATED PARTS/RECOMMENDED PARTS IP21 WC-6277/WC-75236[-20] - Tank Assembly WC-6277/WC-75236[-20] - Tank Assembly - Parts List ITEM # PART # DESCRIPTION ITEM # PART # DESCRIPTION TANK, COMPLETE 1600W 120V D500GT/TCTS/ WC-1438-101 SENSOR, TEMPERATURE TANK WC-6277 PTT/CBS GUARD, SHOCK/HEATING ELEMENT FOR SINGLE WC-4394 TANK, ASSY D500GT/H/TCTS/PTT3/ CBS W/WC- HEATING ELEMENT...
Wa s Hertz # of Tank Model Conductor Phase Ra ng Elements Not Used Wires Vdd +5Vdc G4TB G4CB Vss- (Logic_Common) G4RTB 13.8 1650 50/60 1600V/120V (USB) Pin Assignments G4RSTB G4STB 6-Pin Connector G4TB2 Vss- (Logic_Common) G4CB2 TX - Transmit G4RTB2 12.5...
Page 21
TROUBLESHOOTING GUIDE WARNING: Electric Shock Hazard - Scald and Burn Hazard - IMPORTANT: always check all Valve Test Procedure Troubleshooting Guidelines • • • • Valve Test Procedure in either direction Water Not Hot Enough replace the temperature sensor Water Heats More Slowly Than Usual During Brewing...
Page 22
TROUBLESHOOTING GUIDE No Power - Display Not Lit Water Tank Does Not Fill Brewer Does Not Start When Brew Button is Pressed Brewing Brewing Sensor Error Message...
Page 23
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 sure that the spray head is correctly aligned and that the tubing is routed properly to allow for maximum water All Of The Time...
Page 24
TROUBLESHOOTING GUIDE No Water/Tea Flows From Brewer During Brewing Water Tank Does Not Fill Low Water Flow Warning Water Level Error Message Water Level Error Message “Internal Error 1” Message on Display “Internal Error 2” Message on Display PROGRAMMING GUIDE...
Page 25
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.
Page 26
The G4 control module diagnostics can be used to detect electrical circuit failures in the brewer. When a circuit Using the Diagnostics The MAIN MENU Control Settings. Diagnostics Curtis logo Auto Test to test all circuits. If a button is highlighted green the DIAGNOSTICS Left Auto Test...
ERROR CODES Warning Messages - Allows Brewer to Continue Brewing MESSAGE DISPLAY WARNING DESCRIPTION CAUSE Brew count “Gallons Since Reset” exceeds programmed Maintenance Required Maintenance Required preventative maintenance period. If the Inlet valve remains on longer than XX seconds (during the brew cycle only) and repeats TWICE during that brew cycle.
Page 28
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).