Curtis G4 ThermoPro® Series 1.5 Gallon Coffee Brewing System

USER GUIDE

READ AND SAVE THESE INSTRUCTIONS

NOTICE TO INSTALLER: Please leave this booklet with the machine.

Key Features/Specifications/System Requirements

Key Features

  • Gold Cup® Series – 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.
  • Generation Four (G4) Digital Control Module – Large, 4.3" touch screen. Icon-driven interface streamlines operation. On-Screen Instructions – Provides fast, intuitive training; reduces service calls.
  • Built-in Self Diagnostic System – Includes real-time feedback of the brewing process and energy saving mode.
  • Stainless steel ThermoPro® vacuum-sealed servers keep coffee fresh, hot and flavorful.
  • Pre-Set, One-Touch Global Recipes – Based on coffee type, grind and weight.
  • Single unit is field selectable for one, two or three batch brewing.
  • Centrally located hot water spout for instant hot beverages and other hot water needs.
  • Industry's most effective mineral tolerant design.

Specifications (Selected Models)

Electrical Supply Requirements

MODEL # DESCRIPTION PHASE VOLTS AMPS HEATING CONFIG WIRE WATTS HERTZ GAL/HR
G4TP2S10A3500 Single brewer with shelf 1 PH 220 V 19.5 A 2 x 2000 W 3W + G 4300 W 50/60 Hz 12.0
G4TP2S63A3100 Single brewer, dual voltage 1 PH 110/220 V 15.0/12.7 A 2 x 1600 W 2/W3W+G 1800/2800 W 50/60 Hz 4.5/12.0
G4TP2S63A3500 Single brewer with shelf, dual voltage 1 PH 110/220 V 15.0/12.7 A 2 x 1600 W 2/W3W+G 1800/2800 W 50/60 Hz 4.5/12.0
G4TP2T10A3500 Twin brewer with shelf 1 PH 220 V 23.0/34.5 A 3 x 2500 W 3W + G 5100/7600 W 50/60 Hz 15.0/21.0
G4TP2T10A3100 Twin brewer 1 PH 220 V 23.0/34.5 A 3 x 2500 W 3W + G 5100/7600 W 50/60 Hz 15.0/21.0
Export
G4TP2S30A3100 Single brewer, export 1 PH 230 V 20.0 A 2 x 2000 W 2W + G 4600 W 50/60 Hz 12.0
G4TP2T30A3100 Twin brewer, export 1 PH 230 V 24.2 A 2 x 2500 W 2W + G 5574 W 50/60 Hz 21.0

Dimensions

MODEL # HEIGHT WIDTH DEPTH SHIP WEIGHT SHIP CUBE WATER CONNECTOR WATER PRESSURE MIN. FLOW RATE
G4TP2S10A3500 35.14" 11.07" 20.75" 53.0 lbs 9.6 cu ft 3/8" flare 20 - 90 psi 1.0 gpm
G4TP2S63A3100 35.14" 11.07" 20.75" 53.0 lbs 9.6 cu ft 3/8" flare 20 - 90 psi 1.0 gpm
G4TP2S63A3500 35.14" 11.07" 20.75" 53.0 lbs 9.6 cu ft 3/8" flare 20 - 90 psi 1.0 gpm
G4TP2T10A3500 35.42" 20.07" 20.75" 75.0 lbs 14.1 cu ft 3/8" flare 20 - 90 psi 2.0 gpm
G4TP2T10A3100 35.42" 20.07" 20.75" 75.0 lbs 14.1 cu ft 3/8" flare 20 - 90 psi 2.0 gpm
Export
G4TP2S30A3100 35.14" 11.07" 20.75" 53.0 lbs 9.6 cu ft 3/8" flare 20 - 90 psi 1.0 gpm
G4TP2T30A3100 35.42" 20.07" 20.75" 75.0 lbs 14.1 cu ft 3/8" flare 20 - 90 psi 2.0 gpm

Following are the factory default settings for the ThermoPro brewer:

  • Brew Temperature = 200°F
  • Brew Volume = Large-Medium-Small
  • Water Bypass = On LARGE and MEDIUM brew only
  • Energy Save Mode = Off

Important Safeguards

Symbols

⚠️ This is the safety alert symbol. It is used to alert you to potential physical injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

DANGER - Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING - Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION - Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE - Indicates a situation which, if not avoided, could result in property damage.

ℹ️ IMPORTANT - Provides information and tips for proper operation.

SANITATION REQUIREMENTS

WARNING - This product can expose you to chemicals including Acrylamide and Bisphenol A (BPA), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information visit www.P65Warnings.ca.gov.

Important Safeguards/Conventions

WARNING:

  • Make sure that this appliance is installed and grounded according to the INSTALLATION INSTRUCTIONS by qualified personnel before attempting to use it. Failure to follow the INSTALLATION 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.
  • To reduce the risk of fire or electric shock, DO NOT open the service panels. There are no user serviceable parts inside.
  • Keep hands, arms and other items away from hot surfaces of the unit during operation.
  • Clean the appliance and any dispensers completely before using them for the first time according to the CLEANING INSTRUCTIONS. Clean them regularly as instructed in the CLEANING INSTRUCTIONS.
  • Use this appliance only for its intended use, brewing/dispensing hot and/or cold beverages/water.
  • This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
  • Avoid spillage onto the power (mains) connector.

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.
  • Appliance shall not be tilted more than 10° for safe operation.
  • An electrician must provide electrical service as specified in conformance with all local and national codes. For safe use, an all-pole disconnection must be incorporated into the fixed wiring in accordance with the wiring rules outlined in clause 7.12.2 of IEC 60335 for meeting the minimum electrical safety of this standard.
  • This appliance must not be cleaned by water jet.
  • This appliance can be used by persons aged from 18 years and above if they have been given supervision or instruction concerning use of the appliance in a safe way and if they understand the hazards involved.
  • Keep the appliance and its cord out of reach of children aged less than 18 years.
  • Appliances can be used by persons 18 years and above with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
  • Children under the age of 18 years should be supervised to ensure they do not play with the appliance.
  • If the power cord is ever damaged, it must be replaced by the manufacturer or authorized service personnel with a special cord available from the manufacturer or its authorized service personnel in order to avoid a hazard.
  • Machine must not be immersed for cleaning.
  • Cleaning and user maintenance shall not be made by children unless they are older than 18 years and supervised.
  • This appliance is intended to be used in household and similar applications such as: staff kitchen areas in shops, offices and other working environments; by clients in hotels, motels and other residential type environments; bed and breakfast type environments.
  • This appliance not intended to be used in applications such as: farm houses
  • Access to the service areas permitted by Authorized Service personnel only.
  • The A-Weighted sound pressure level is below 70 dBA.

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 the electrical specifications for the appliance. If you have questions about the correct cable size and length, consult a qualified installer. If the appliance will be hard wired to a junction box, the power cable must be long enough so that the unit can be moved for cleaning underneath.
  • A grounded electrical connection to an electrical circuit that meets the electrical specifications of the appliance (see SPECIFICATIONS). The circuit must be protected by the appropriate sized circuit breaker. If you are not certain that the existing circuit meets the requirements for your unit, consult a licensed electrician.
  • A water filtration system is required to maintain trouble-free operation. Wilbur Curtis Co., Inc. recommends a Wilbur Curtis approved water filter. See the Curtis Equipment Catalog for a full line of Wilbur Curtis approved water filters.
  • Potable water supply line connection from the water filter capable of supplying the minimum flow rate required by the specifications. The water supply line must be able to connect to the flare fitting on the back of the unit. See the SPECIFICATIONS section for the correct size. The water line should also be capable of being controlled by a shut off valve. Do not connect the water line to a saddle valve or needle valve.

NSF International Water Connection Requirements

  1. A quick disconnect or additional coiled tubing (at least two times the depth of the appliance) is required so that it can be moved for cleaning underneath.
  2. This equipment is to be installed with adequate back-flow protection to comply with applicable federal, state and local codes.
  3. Water pipe connections and fixtures directly connected to a potable water supply shall be sized, installed and maintained in accordance with federal, state and local codes.

The International Plumbing Code of the International Code Council and the Food and Drug Administration (FDA) Food Code manual, direct that this equipment must be installed with adequate back-flow prevention in compliance with federal, state and local codes. For units installed outside of the U.S.A., make sure that the installation is in compliance with the applicable plumbing/sanitation code for your area.

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.

  1. Position the brewer on the counter top. Level it left to right and front to back by turning the bottom of the legs.

Installation - Connect the Water Supply

  1. Flush the water supply line prior to installation to purge air and debris from the water filter and tubing.
  2. Connect the water supply line to the flare fitting on the back of the brewer. Leave the water supply valve closed until the power is connected.

Connecting the Power Cord (units without power cord installed or units being converted from 120 Volt to 200 - 240 Volt operation)

⚠️ WARNING: Turn off power to the circuit at the circuit breaker panel before connecting the power cable to the brewer.

  1. Remove the screws that hold the front panel in place and remove it.
  2. Loosen the strain relief on the back of the brewer.
  3. On units equipped with an existing 120 Volt power cord, disconnect the cord from the terminal block and remove it. Locate, disconnect and cap the jumper wire between the “C” and “N” terminals on the terminal block.
  4. Feed the end of the power cable, through the strain relief and into the unit and connect it to the terminal block according to the ELECTRICAL SCHEMATIC.
  5. Tighten the strain relief and replace the front panel.
  6. If a power plug will not be used, connect the power cable wires directly to the terminals in the junction box. See the ELECTRICAL SCHEMATIC for the power supply requirements.

Installing the Power Plug (units that do not have a pre-installed plug and will be connected to a power receptacle)

⚠️ 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. Do not modify the power plug. Do not use an extension cord. Do not use a power cord/plug that is damaged.

  1. Connect the appropriate type of grounded power plug to the end of the power cord coming from the back of the unit.

Powering up the Unit

Units Operating with a power plug:

  1. Connect the power plug to the appropriate type of electrical outlet.

All Units:

  1. Turn on the water supply valve.
  2. Make sure that the circuit breaker supplying power to the unit is on.
  3. Turn the toggle switch on the back of the brewer to the ON position. The water tank will start to fill. While the tank is filling, inspect the water supply line for leaks. Go to the PROGRAMMING GUIDE section and program the brewer for the correct model and batch number.

ℹ️ IMPORTANT: When operating the unit at higher elevations, reduce the default operating temperature (200°F/92°C) by 2°F/1°C for each 1000 feet (300 m) of elevation above 4000 feet (1200 m). See PROGRAMMING GUIDE.

  1. When the water level in the tank rises to the correct volume, the heating elements will turn on automatically. Depending on the incoming water temperature and the electrical specifications, the water tank typically requires 20 to 30 minutes to reach the factory set operating temperature. When the water has heated, "Ready to Brew” should be on the display.

Powering up the Unit (cont.)

  1. Before brewing for the first time, dispense 12 ounces of hot water through the hot water faucet to help purge air from the tubing inside the brewer.
  2. Brew a cycle of at least 12 ounces, to purge any remaining air from the tubing. See OPERATING INSTRUCTIONS. During the initial brew cycle and whenever the filter is replaced, you may hear the sounds of air being purged from the filter, tubing and water tank.

Operating Instructions

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.

The G4 ThermoPro Brewer is factory preset for optimal performance.

  1. The brewer should be ON. Confirm this at the rear toggle switch. "Ready to brew" should be on the display. If the brewer is connected to an inter-lock grinder, the grinder should be on. When inter-lock connection is made, grind coffee at this time.
  2. Center an empty dispenser under the brew basket.
  3. Insert a clean paper filter into the brew basket. Fill with the proper amount of ground coffee. Level the coffee in the filter.
  4. Slide the filled brew basket into the brew rails under the control panel. Slide it all the way back until it stops.
  5. Hold your finger on the appropriate brew icon. As soon as you hear the click of the brew valve, lift your finger. Brewing will begin.
  6. If a keypad appears on the display, the brew code feature is enabled (default is off). Brewing will start immediately after you enter the brew code. See the PROGRAMMING GUIDE to set up/disable the brew code.

The brewer will brew coffee based on the settings programmed into the universal control module (UCM). To change the settings, see the PROGRAMMING GUIDE section.

Cleaning Instructions

Cleaning The Brewer - Daily

⚠️ 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. These products promote corrosion and will damage the finishes. USE OF THESE PRODUCTS WILL VOID THE WARRANTY.

The brewer should be OFF. Turn the brewer off by flipping the rear toggle switch to the OFF position.

  1. Remove the dispenser(s). Wipe exterior brewer surfaces with a damp cloth to remove spills and debris.
  2. Remove the brew basket(s) and clean them in a mild detergent solution. Use a soft bristled brush for hard to clean areas. Rinse with clean water, then dry.
  3. Wipe the spray head area with a cloth soaked in a mild detergent solution. Rinse with a cloth soaked with clean water removing any residual detergent. Use a clean, soft cloth to dry.
  4. Dump out the drip tray(s) (if applicable). Rinse with clean water, then dry with a soft, clean cloth.

Cleaning The Brewer - Weekly

The brewer should be OFF. Turn the brewer off by flipping the rear toggle switch to the OFF position.

  1. Remove the spray head(s), unscrewing counterclockwise from the dome plate.
  2. Thoroughly clean and rinse the dome plate area.
  3. Clean the brew basket rails with a brush soaked with a mild detergent solution. Rinse the area with a cloth soaked with clean water, removing any residual detergent.
  4. Dry the area with a soft, clean cloth.
  5. Reattach the spray head(s).

Cleaning the 1.0 Gallon or 1.5 Gallon Thermal Dispensers (Daily)

⚠️ WARNING: DO NOT immerse the thermal server or its lid assembly in water or any other liquid. Do not place the thermal server or lid in a dishwasher. Placing a thermal server in a dishwasher will void the warranty. To avoid damage, DO NOT use a brush to clean the faucet or the inside of the faucet shank (outlet).

Cleaning the Container

  1. Prepare a mild solution of detergent and warm water. Remove the server from the brewer and remove the lid. Rinse.
  2. Wash - Wipe the exterior surfaces of the container with a sponge soaked with the detergent solution to remove spills and debris. Remove the lid and fill the liner with the detergent solution. Use a sponge brush and scrub out the stainless steel liner and the lid.
  3. Rinse - Rinse with clean, warm water.
  4. Sanitize - Sanitize the interior of the server and the lid, using a commercial sanitizer suitable for food grade applications. Sanitize according to the directions on the package.
  5. Disassemble the faucet - Unscrew the handle/ bonnet assembly from the top of the faucet and remove it. Inspect the seat cup for wear. Replace the seat cup if it is damaged.
  6. Disassemble the sight gauge (some versions). If the sight gauge has a cover, pull it up and off to remove. Remove the cap to disassemble the gauge (both versions). Some versions are equipped with a guard that must be unscrewed to access the lower washer and float. Remove the glass tube. Inspect it for cracks or chips. If broken, replace the glass with a new one.
  7. Air Dry - Turn the container and lid upside down and allow to air dry.

Cleaning the Faucet Parts and Site Gauge

  1. Wash - Wash all faucet and gauge glass parts with the detergent solution. Using the supplied brush, clean inside the fill tube on the lid. Clean the inside of the gauge glass with a gauge brush soaked with detergent solution.
  2. Rinse - Thoroughly rinse all parts with clean, warm water.
  3. Sanitize - After rinsing, place all faucet and gauge parts in a sink to be sanitized. Immerse them in a commercial sanitizer suitable for food grade applications. Sanitize according to the directions on the package.
  4. Air Dry - Allow all parts to thoroughly air dry.
  5. Reassemble - When dry, reassemble the handle/ bonnet. Hand tighten the handle/bonnet onto the top of the faucet assembly, reinstall the site gauge and cover. If replacing a broken gauge glass, carefully remove any traces of glass from the silicone parts before inserting the new gauge glass tube. Reinstall the lid.

Cleaning the Airpot/Pour Pot (Daily)

⚠️ WARNING: DO NOT immerse the airpot/pour pot or lid assembly in water or any other liquid. Do not place the airpot/pour pot or lid in a dishwasher. Placing a airpot or pour pot in a dishwasher will void the warranty.

Start by preparing a mild solution of detergent and warm water. Remove the airpot/pour pot from the brewer and remove/open the lid. On airpots, remove the nozzle assembly. Rinse.

Cleaning Airpots

  1. Wash - Wipe the exterior surfaces of the airpot and lid with a sponge soaked with the detergent solution to remove spills and debris. Fill the liner with the detergent solution. Use a sponge cleaning brush to clean inside. Clean the spout/siphon tube with the detergent solution.
  2. Rinse - Rinse the airpot and the spout/siphon tube with clean, warm water.
  3. Sanitize - Sanitize the interior of the airpot, the spout/siphon tube and the lid, using a commercial sanitizer suitable for food grade applications. Swab, brush or pressure spray the sanitizing solution according to the directions on the package.
  4. Air Dry - Turn the airpot and lid upside down. Allow all parts to air dry.

Cleaning Pour Pots

  1. Wash - Wipe the exterior surfaces of the pour pot and lid with a sponge soaked with the detergent solution to remove spills and debris. Fill the liner with the detergent solution. Use a sponge cleaning brush to clean inside.
  2. Rinse - Rinse the pour pot and the lid with clean, warm water.
  3. Sanitize - Sanitize the interior of the pour pot and the lid, using a commercial sanitizer suitable for food grade applications. Swab, brush or pressure spray the sanitizing solution according to the directions on the package.
  4. Air Dry - Turn the pour pot and lid upside down and allow to air dry.

NOTE: The stem on the bottom of TFT series pour pot lids have a built-in sensor used for the FreshTrac® feature. Keep this stem free from coffee oil build-up for proper operation. After cleaning, inverting the lid for 30 seconds resets the Fresh Trac timer.

Programming Guide

Touchscreen Control Module

The touchscreen turns on whenever power is provided to the brewer and the rear toggle switch is on. The symbol buttons on the screen control operation and programming. Pressing the on-screen symbols and buttons with your finger tip activates the various functions. The default screen, as well as additional control buttons are shown below. The configuration of the default screen varies depending on the brewer model.

Entering Programming Mode

  1. Tap the (white) Curtis logo on the touchscreen five (5) times to enter programming mode.
  2. The ACCESS CODE screen will appear. The default pass code 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 the Control Settings sub-menu, under Passwords.
  3. The MAIN MENU screen contains a series of sub-menu icons. The icons vary based on the model selected under the Model Select sub-menu. For the brewer to operate properly, the model selected must match the model series on the brewer model number label affixed to the outside of the machine.

Programming

Shown below are the various programming options available in the programming MAIN MENU. The icons that appear vary based on the brewer model selected under Model Select.

SELECTIONS FOR COFFEE BREWER MODELS

Model Select: Coffee, Gemini®, Gemini IF, GEMX™, TP, TPX, Milano™, Omega, TP1G, TPX1G

Recipes: Gourmet Std, Light Roast, Dark Roast, High Yield, Filter Pack, Decaf, Custom Recipe

Control Settings: Temperature Settings, Warmer Settings*, Quality Timer, Energy Savings, Sounds, Diagnostics, Display Settings, Preventative Maintenance, Brew Counter, Passwords, Master Reset, Regional Settings, Filter Pre-Wet*, Satellite LED Color*, Rinse Volume*

Brew Settings: By Volume/Time, Pre/Pulse, Bypass, Drip Out, Pulses, Sprayhead Types, Batch Size, Sprayhead Types

Settings Summary: See Brew Settings

Exit

SELECTIONS FOR TEA BREWER MODELS

Model Select: Tea, Tea/IC-1Batch, Tea/IC-2Batch, Tea/IC-3Batch, Tea/IC-4Batch Full Only, Full & Half, Tropical-Purple, Tea-Sweet, Dual-Dilution, Tropical-Gray, 76/308-Purple, Dual-Sweet, 76/308-Gray

Control Settings: Temperature Settings, Quality Timer, Energy Savings, Sounds, Diagnostics, Display Settings, Preventative Maintenance, Brew Counter, Passwords, Master Reset, Regional Settings

Brew Settings: By Volume/Time, Dilution by Volume/Time, Dilution Delay/Stir/Fast-Brew, Pulses, Drip-Out, Sweetener*

Settings Summary: See Brew Settings

Exit

SELECTIONS FOR COMBO BREWER MODELS

Model Select: Combo, Combo/IC, Combo-Sweet, Combo HV, Combo HV/IC

Recipes: Standard-Purple, Standard-Gray, Standard-Amber, Tropical-Purple, Tropical-Gray, 76/308-Purple, 76/308-Gray, Gourmet Std, One Batch, Single, Two Batch, Three Batch, Filter Pack, Decaf

Control Settings: Temperature, Quality Timer, Energy Savings, Sounds, Diagnostics, Display Settings, Preventative Maintenance, Brew Counter, Passwords, Master Reset, Regional Settings

Tea Brew Settings: Standard-Purple, Standard-Amber, Tropical-Amber, 76/308-Amber

Coffee Brew Settings: Standard-Purple, Standard-Amber, Gourmet Std, Light Roast, Dark Roast, High Yield, Filter Pack, Decaf

Brew Settings: By Volume/Time, Dilution by Volume/Time, Dilution Delay, By Volume/Time, Pulses, Drip-Out, Pre/Pulse, Bypass, Drip-Out

Settings Summary: Exit

* Feature not available on some models

USB - Easy Programming

There are two methods for changing the default settings on G4 brewers. The settings can be programmed manually using the brewer touch screen, or automatically using the USB (Universal Serial Bus) data port on the side of the brewer. Using the USB connection and a flash drive easily reprograms the settings by simply copying data.

A flash drive can copy all of the settings from one identical G4 brewer to another. Doing so eliminates the need to program each step individually using the touchscreen. This process also makes it easy to quickly standardize the program settings on multiple G4 brewers.

Use a flash drive that supports USB 2.0 or above and has a type-A USB connection. The storage capacity must be 2 GB minimum.

ℹ️ IMPORTANT: The flash drive must be completely blank. Erase any existing files on the drive before starting the following process.

Uploading the Software to the Flash Drive

  1. Make sure the brewer is on. Check to make sure that the brewer you are copying settings from is programmed as desired.
  2. Open the cover on the USB port and insert the connector on the empty flash drive. The port is located on the right side panel of the brewer, near the top. The universal control module (UCM) will upload all of the setup data onto the flash drive. The yellow LED icon on the top left of the touchscreen will light indicating that data is transferring. This process will only take a second to complete.

Downloading the Software to the Brewer from the Flash Drive

  1. Select the (identical) brewer you wish to make program changes to. The brewer must be on.
  2. Plug the loaded flash drive into the USB port on the brewer. The data copied from the first brewer will automatically download, overwriting all the settings that were on the second brewer.
  3. The red LED on the top left of the touchscreen will indicate that the download is in process. This will only take a second.
  4. Once the download is complete, the UCM will reboot so that the changes take effect.
  5. Remove the flash drive. The download is complete. The data on the flash drive can continue to be downloaded into as many identical brewers as needed.

USB File Transfer

This screen will be present whenever the USB flash drive is inserted, provided the brewer is not currently brewing.

The default action is “No Action”. The UCM will always create a backup on the flash drive before downloading settings/recipes or a screen-saver. If a firmware update is present on the flash drive, the firmware update procedure will be started before the screen is shown.

Rough-In Drawings

Detailed dimensions are provided for the G4TP2S Single Coffee Brewer and the G4TP2T Twin Coffee Brewer. These drawings include height, width, depth, and clearance requirements.

Illustrated Parts List

The document includes detailed exploded views and parts lists for the main chassis of the G4TP2S and G4TP2T models, as well as tank assemblies (WC-62032, WC-62031, WC-62030). Each part is listed with a part number and description.

Electrical Schematics

Various electrical schematics are provided for different configurations, including Single Domestic 220 Volt, Single Domestic Dual Voltage, Single Export, Twin Domestic, and specific model combinations like G4TP1T30A3100 and G4TP2T30A3100. These include pin assignments for UPM, UCM, USB, and electrical rating tables.

Troubleshooting Guide

This guide covers common issues and their solutions, including:

  • No Power - Display Not Lit
  • Brewer Does Not Start When Brew Button is Pressed
  • Sensor Error Message
  • Water Tank Overfills
  • Water Tank Does Not Fill
  • Coffee/Tea Too Strong
  • Dispenser Not Filled To Normal Level During Brewing
  • Dispenser Overflows All Of The Time
  • No Water/Tea Flows From Brewer During Brewing
  • Low Water Flow Warning
  • Water Level Error Message
  • Internal Error 1 / Internal Error 2 Messages
  • Water Does Not Heat At All
  • Water Too Hot (Boiling or Excessive Steaming)
  • Over Temp Sensor Error Message

The guide also details how to use the diagnostic features of the G4 control module.

Error Codes

This section lists warning messages that allow the brewer to continue brewing (e.g., Maintenance Required, Low Water Flow Warning, Internal Error 2) and error messages that will stop brewing (e.g., Water Level Error, Sensor Error, Over Temp. Error, Internal Error 1). It also covers Configuration Error messages.

Product Warranty

Wilbur Curtis Co., Inc. provides limited warranties for its products, covering parts and labor for digital control boards (3 years), other electrical components, fittings, and tubing (2 years parts, 1 year labor). Grinding burrs have a 40-month warranty. Stainless steel components are warranted for 2 years against leaking or pitting. Replacement parts are warranted for 90 days or the remainder of the equipment's warranty. The document outlines conditions and exceptions, including improper operation, installation, voltage, and water supply. It also details the Return Merchandise Authorization (RMA) process for warranty claims.

For authorization or technical support, contact the Technical Support Department at 800-995-0417. For full warranty information, visit www.wilburcurtis.com.

Contact Information

Wilbur Curtis Co., Inc.
6913 Acco Street | Montebello, CA 90640 US
Phone: 323-837-2300 | Toll Free: 800-421-6150
Email: csrassistance@wilburcurtis.com | Web: www.wilburcurtis.com

For the latest specifications and information go to www.wilburcurtis.com

Toll Free: 800-995-0417 | Monday - Friday 5:30 A.M. - 4:00 P.M. PT
Email: techsupport@wilburcurtis.com

Due to continued product improvement, the products illustrated/photographed in this guide may vary slightly from the actual product.

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Curtis G4 ThermoPro Manual PPAlambic (Distiller)

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Comprehensive user guide for the Curtis G4 Digital Iced Tea Brewing System, covering installation, operation, cleaning, programming, troubleshooting, and warranty information.
Preview Curtis G4 ThermoPro Series 1 Gallon Coffee Brewing System User's Guide
Comprehensive user's guide for the Curtis G4 ThermoPro Series 1 Gallon Coffee Brewing System, covering installation, operation, cleaning, programming, and troubleshooting.
Preview Curtis ThermoPro G3 Digital Coffee Brewing Systems - Models TP15S, TP15T
Explore the Curtis ThermoPro G3 Digital Coffee Brewing Systems, including TP15S Single and TP15T Twin models. Featuring G3 Digital Control Module, pre-set recipes, stainless steel vacuum servers, and enhanced recovery circuitry for gourmet coffee brewing in commercial settings.
Preview Curtis ThermoPro G3 Digital Coffee Brewing Systems - TP15S, TP15T, Milano Server
Discover the Curtis ThermoPro G3 Digital Coffee Brewing Systems, including TP15S Single and TP15T Twin models. Featuring precise digital control, pre-set gourmet recipes, and stainless steel vacuum-sealed servers for fresh, hot, and flavorful coffee. Ideal for commercial use.