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GEM-120A Satellite Brewer Instructions
GEMINI COMMERCIAL COFFEE
BREWING SYSTEMS
CONTENTS
Unpacking . . . . . . . . . . .
Function of Gemini . . . .
Setup . . . . . . . . . . . . . . . .
Timer Adjustment . . . . . .
Care & Maintenance .
Trouble Shooting . . . . . .
Parts List Gem 3 & 5 . . . .
Parts List Gemini 120A . .
Wiring Diagrams
Gemini 120A -10 . . . .
Gemini 120A -63 . . . .
Warranty . . . .
Back Cover
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C
ISO 9001 REGISTERED
5/23/00. 8.9 f-1903.p65.p1X
WILBUR CURTIS COMPANY
Montebello, CA 90640
FOR THE LATEST SPECIFICATIONS AND INFORMATION GO TO
WWW.WILBURCURTIS.COM
INSIDE FRONT COVER IS A BLANK PAGE
GEMINI 120A
UNPACKING
All products manufactured by the Wilbur Curtis Company are thoroughly inspected at the factory
and are warranted to be free of all defects or faulty workmanship. The Gemini unit is packaged for
maximum protection while being shipped.
Make sure the shipping carton is not damaged
or punctured. Unpack the carton carefully,
inspecting the contents for any damage that
may have occurred in transit. Report any
damage immediately to the freight company.
E
D
B
G
F
H
be used at any time without interrupting the brew cycle. A warmer element, H, keeps the coffee in
the Satellite at the proper temperature.
NOTICE
This brewer must be installed by a professional licensed technician and must comply with all local
electrical, mechanical and plumbing codes having jusrisdiction. Wilbur Curtis Company will not
accept any responsibility if these conditions are not met. This machine must be used for it's intended purpose and the function for which it was designed.
A
C
FUNCTION OF THE GEMINI
The water in the heating tank A, is maintained
at the same level at all times by a sensor
called the water level probe B. This controls
the water inlet valve C.
When the brew switch is pushed, a brew cycle
starts: The dump valve D, is opened by the
brew timer E, allowing hot water to be sprayed
over the ground coffee for a specific time
period .
Brewed coffee then pours from the brew cone
F, into the Satellite.
The hot water faucet G, dispenses hot water
for tea, instant beverages, or soups and can
SETUP INSTRUCTIONS
1. Locate a position for the Gemini 120A on a firm and level, counter top.
2. Remove the top cover of the brewer and lid from the heating tank. Hand fill the tank until the
water level is approximately two (2) inches below the probe tip.
3. A 1/4" female flare fitting is required for water supply. Connect the water line to the inlet valve
fitting and turn on the water.
4. With the top cover removed, turn thermostat stem clockwise until it stops.
5. Plug the unit into a power supply outlet and turn toggle switch on. Turn ON/OFF switch to ON
position. Make sure water is flowing into the heating tank. Filling should stop when the water
level reaches the probe tip. When this is verified, replace both tank lid and top cover to the
machine.
6. Allow 15 to 20 minutes for the water in the tank to reach brewing temperature. The
BREW READY light will come on when it reaches the correct temperature.
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GEMINI 120A
ADJUSTMENT INSTRUCTIONS FOR TIMER WC-603RDS
The Gemini 120A now has a new timer which
was introduced starting from serial number
14866. It is a new, improved version of the
previous WC-603 RD timer. The wiring on
this has remained exactly as on the older
versions to make retrofitting easier.
The timer is mounted inside the upper compartment with the brew selector knob protruding from the center of the front panel (see
illustration, left). The brewer is designed to
brew 24 cups (one gallon maximum). Adjustment of the timer is made on the timer calibration dial. The knob indicator must be set at
the 480 second mark on the dial. On the front
panel, the brew selector switch should be at
2. This setting will deliver one gallon of water
(brew 24 cups) per brew cycle. To brew 12
cups, simply turn the brew selector knob to 1.
If finer adjustments are needed, rotate timer knob to the right to increase the brew time, rotate to
the left to decrease the brewing time.
CARE AND MAINTENANCE OF THE GEMINI 120A
Regular cleaning and preventive maintenance is essential in keeping your Gemini Coffee Brewer
looking and working like new.
WARNING Do not use cleansers, liquids, bleaches, or powder that contain chlorine.
These products cause corrosion and pitting on stainless steel and will void your warranty.
PREVENTIVE MAINTENANCE:
1. Remove the sprayhead from the Gemini 120A and clean once a week or more often in heavy
lime areas.
2. Clean the faucet seat cups twice a week and replace when they are cracked or leaking.
3. Periodic temperature checks or adjustment of thermostat by authorized personnel.
CLEANING
To maintain optimum coffee flavor, the Gem 3 Satellite should be cleaned daily after the last batch
of coffee is used. We recommend the use of urn cleaning powder or Scotch Bright pads for cleaning inside the coffee container.
The outside of the brewer and Satellite should be cleaned with a soft cloth and stainless steel
polish only, to prevent scratching the surface.
Deliming of the heating tank should be done every six (6) months; more often in heavy lime areas.
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