Wilbur Curtis Company GEM SS Service Manual Download Page 1

1

Your Curtis gemini is factory pre-set and ready to go… right from the box.

Following are the Factory Settings for your GEMSS Coffee Brewing System:
 

• Brew Temperature = 200°F 

 

 

• Water Bypass = On LARGE & MEDIUM brew only

 

• Brew Volume = Large set to vessel requirements. 

• Energy Save Mode = Off

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. 

Setup Steps

The unit should be located on a solid counter top and leveled (left to right and front to back).  Connect a water line from the water filter to 

the brewer. 

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.

Symbols

WARNINGS – To help avoid personal injury

Important Notes/Cautions – from the factory

Sanitation Requirements

1.  A 3/8” flare x 3/8” Male pipe elbow is supplied with the brewer for water line connection. Use tubing sized sufficiently to provide a  

 

  minimum of 1.0 gpm.

2.  Connect the unit to an appropriate electrical power circuit.

3.  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.

4.  The heating tank will require 20 to 30 minutes to reach operating temperature (200°F), indicated when READY TO BREW is displayed  

  on the LCD screen.

5.  Prior to brewing, dispense 12 ounces of hot water through the hot water faucet.

6.   Brew a cycle of at least 12 ounces, to purge the water lines of any air that may be trapped after filling.

Models

 

  GEMSS

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.

WARNING:

 TO AVOID SCALDING, Do not remove brew cone while brew light is flashing.

IMPORTANT: Equip-

ment to be installed to 

comply with applicable 

federal, state, or local plumbing/

electrical codes having jurisdiction.

Brewing Instructions

1.  Brewer should be ON (Confirm at rear toggle switch, then press the ON/OFF button). Ready-to-Brew should be on the display. If the    

brewer is connected to an InterLock grinder, the grinder should be on. When Interlock connection is made, grind coffee at this time.

2.  Place an empty Satellite under the brew cone and press the warmer switch to pre-heat the Satellite.

6.  Select and press one 

of the BREW buttons. 

Brewing will begin 

immediately.

5.  Transfer the filled 

brew cone to the brew 

rails.

3.  Place a clean filter 

into the brew cone.

4.  Fill the brew cone with 

the proper amount of 

ground coffee.

NSF International 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 clean-

ing underneath the unit.

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.

ISO 9001:2008

Wilbur Curtis Co., Inc.

Montebello, CA 90640

Tel: (323) 837-2300

www.wilburcurtis.com

Important Safeguards

This appliance is designed for commercial use. Any servicing other than cleaning and preventive maintenance should be 

performed by an authorized Wilbur Curtis 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. No user serviceable parts inside.

  • Keep hands and other items away from hot surfaces of unit during operation.
  • Never clean with scouring powders, bleach or harsh chemicals.

W

ilbur

 C

urtis

 C

o

., i

nC

.

Service Manual – GEMSS

Summary of Contents for GEM SS

Page 1: ...ase 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 WARNING TO AVOID SCALDING Do not remove brew co...

Page 2: ...ly 2 3 minutes depending on water flow rate When the proper level is reached will appear on the screen It takes approximately 20 minutes to reach set point temperature of 200 F Control will display wh...

Page 3: ...CBL 5 15 or OFF to set The Cold Brew Lock feature allows the brewer to brew at three different temperature levels from the actual set point The first setting is within 5 degrees of set point next is w...

Page 4: ...expired Press to set and exit Functions only when quality timer is enabled Drip out Mode Beeper On Off Warmers Default BREW BUTTON PROGRAMMING Brew by Volume Factory settings LARGE 200oz 8oz MEDIUM 13...

Page 5: ...to the defaults of the newly selected model Also the next feature Batch Select appears Batch Select Factory set to One Batch Press to select or to select One Batch Two Batch or Three Batch Press to s...

Page 6: ...4 ADJUST 3 8 16 THREAD PART ITEM DESCRIPTION 16 17 18 18A 19 20 21 22 22A 23 24 24A 25 26 27 28 28A 29 30 31 32 WC 5451 WC 43089 WC 37102 WC 975 WC 3765L WC 37132 WC 2977 101K WC 37176 WC 723 WC 5853...

Page 7: ...7 Electrical Schematic GEM SS...

Page 8: ...SHIELD BASE 3 16 FAUCET S NON LOCKING KIT FAUCET S SERIES KIT SHANK ASSY FAUCET W SHIELD BASE O RING SHANK FAUCET W SHIELD BASE OLDER UNITS KIT WARMER ELEMENT 100W 120V LEG SCREW BUMPER 3 8 16 STD SW...

Page 9: ...ean the Satellite components prepare a mild solution of detergent and warm water DO NOT immerse the satellite in water or any other liquid 1 Remove lid from satellite Clean the lid at the funnel area...

Page 10: ...plumbing codes 3 Improper voltage Equipment must be installed at the voltage stated on the serial plate supplied with this equipment 4 Improper water supply This includes but is not limited to excessi...

Reviews: