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This Curtis Generation 4 Unit 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 Flow Rate of 1 GPM)

 

• Electrical: See attached schematic for standard model or visit www.wilburcurtis.com for your model. 

Model

 G4GEMTIF

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

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 fire 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 IntelliFresh Twin Brewer

W

ilbur

 C

urtis

 C

o

., i

nC

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 backflow protection to comply with applicable federal, 

state and local codes.

3.  Water pipe connections and fixtures 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, flip the toggle switch to the ‘ON’ position (located on the rear of 

the unit), the water tank will begin to fill. 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 filtration 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 filter. For our full line of filters, 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 fitting on the rear of the unit. Water volume flow to the machine 

should be consistent. Use tubing sized sufficiently to provide a minimum flow rate of one gallon per minute.

FOR THE LATEST SPECIFICATIONS AND INFORMATION GO TO WWW.WILBURCURTIS.COM

Summary of Contents for G4GEMTIF

Page 1: ...otes 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 r...

Page 2: ...e brew cycle by hold your finger 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 finger Brew Code You may find that when a bre...

Page 3: ...TUS 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 s...

Page 4: ...4 Menu Tree This chart explains how to enter the program mode and menu selections available from the MAIN MENU...

Page 5: ...5 Menu Features...

Page 6: ...6 Menu Features Brew Settings...

Page 7: ...7 System Fault Messages...

Page 8: ...8 Brew Access Code...

Page 9: ...starting please erase any files 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 programm...

Page 10: ...sh drive before downloading settings recipes or screen saver If a firmware update file is present on the USB flash the firmware update procedure will be started BEFORE this screen is shown Case 1 Sett...

Page 11: ...11 Illustrated Parts Main View...

Page 12: ...7V 40A 9 WC 43055 GUARD SHOCK RESET THERMOSTAT 10 WC 1438 101 SENSOR TEMPERATURE TANK 11 WC 29050 SPRAYHEAD ASSY AFS AMBER 12 WC 8559 RELAY SOLID STATE 40A w INTEGRATED HEATSINK 13 WC 14045 101 CURREN...

Page 13: ...SE 31 WC 102 SWITCH TOGGLE SPST 15A 125Vac RESISTIVE 32 WC 4212 02 NUT 5 8 18 JAM PLASTIC ULTEM 33 WC 37121 KIT DUMP VALVE LEFT 34 WC 442 SOLENOID LOCK BREW CONE RIGHT 120VAC 35 WC 2977 101K KIT SPRAY...

Page 14: ...14 Electrical Schematic G4GEMTIF 10...

Page 15: ...N Do not use cleansers bleach liquids powders or any other substance containing chlorine These products promote corrosion and will pit the stainless steel USE OF THESE PRODUCTS WILL VOID THE WARRANTY...

Page 16: ...nd inadequate or fluctuating water flow rate 5 Adjustments and cleaning The resetting of safety thermostats and circuit breakers programming and temperature adjustments are the responsibility of the e...

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