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ADJUSTMENT INSTRUCTIONS FOR TIMER WC-603RDS

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.

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 com-
partment with the brew selector knob protrud-
ing from the center of the front panel (see
illustration, left). The brewer is designed to
brew 24 cups (one gallon maximum). Adjust-
ment of the timer is made on the timer cali-
bration 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

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.

PREVENTIVE MAINTENANCE:

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 clean-
ing 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.

CLEANING

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GEMINI 120A

Summary of Contents for CA 90640

Page 1: ...12345678901 12345678901234567890123456789012123456789012345678901 12345678901234567890123456789012123456789012345678901 12345678901234567890123456789012123456789012345678901 12345678901234567890123456...

Page 2: ...INSIDE FRONT COVER IS A BLANK PAGE...

Page 3: ...ect 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 toggl...

Page 4: ...ont 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...

Page 5: ...2 4 Defective or burned out water level control board item 3 PROBLEM WATER IN TANK DOES NOT GET HOT OR WATER TEMPERATURE TOO LOW POSSIBLE CAUSE SOLUTION 8 Thermostat is off item 31 Check the thermosta...

Page 6: ...volts across terminals 6 and A of the timer The RED wire on terminal 6 supplies power to open the dump valve If no voltage is present replace the timer If the timer works when the brew switch is press...

Page 7: ...ART PART PART N N N N N INDEX INDEX INDEX INDEX INDEX N N N N N 9 10 11 11A 12 13 14 15 WC 2007 WC 1901 WC 1800 WC 1841 WC 3705 GEM4 WC 3503 WC 37102 BRACKET GAUGE GLASS FORMED SHANK FAUCET D T CHROME...

Page 8: ...6 GEMINI 120A Parts List B 8 2 7 2 8 B 2 5 6 3 1 6 1 4 2 1 1 4 1 9 2 0 2 4 5 7 13 1 3 9 1 0 1 1 1 2 1 7 1 5 1 5 1 8 1 8 2 3 2 2 2 6 2 9 3 0 5 23 00 8 9 f 1903 p65 p8X 3 1...

Page 9: ...OGGLE SPST 25A 125 250 VAC RESISTIVE LEG SCREW BUMPER 3 8 16 STD KIT BREW CONE W BASKET SS 7 1 8 DELUXE BLK HANDLE OPTIONAL COVER FRONT GEM 120A 120P 230A 200R 300IL 600ILD COVER TOP D500 G230A G120A...

Page 10: ...8 WIRING DIAGRAM GEM120A 10 VOLTAGE 120VAC 1775 15 60 2 GND 1 WATTAGE AMPERAGE WIRES HERTZ PHASE...

Page 11: ...9 WIRING DIAGRAM GEM120A 63 VOLTAGE 120 220VAC 1775 2100 15 10 60 3 GND 1 WATTAGE AMPERAGE WIRES HERTZ PHASE...

Page 12: ...nal certified technician and must comply with all local electrical mechanical and plumbing codes 3 Wilbur Curtis Company will not be responsible for the operation of equipment at other than the stated...

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