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14

Cleaning the Gemini

Regular cleaning and preventive maintenance is essential in keeping your coffee brewer looking and working like new. 

To clean the coffee brewer and components, prepare a mild solution of dish washing detergent and warm water.

CAUTION – Do not use cleaning liquids, compounds or powders containing chlorine (bleach) or corrosives. These 

products promote corrosion and will pit the stainless steel. USE OF THESE PRODUCTS WILL VOID THE WAR-

RANTY.

DAILY CLEANING

1.  Wipe exterior surfaces with a damp cloth, removing spills and debris.
2.  Slide the brew basket out and clean it. Wipe the spray head area with a cloth soaked in a mild detergent solution.
3.  Rinse with a cloth soaked with clean water. Dry the brew basket and spray head area.
4.  Drain drip trays of coffee. Water rinse.
5.  Dry the tray.

WEEKLY CLEANING

1.  Reach behind the brewer and turn off the power at the toggle switch. Allow the brewer to cool.
2.  Clean the spray head and dome plate area.

a. Remove the spray head, unscrewing counterclockwise from the dome plate.
b. Thoroughly clean and rinse the dome plate area. 
c.  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. 

d. Dry the area.
c.  Attach the spray head.

Liquid Level Probe

Cleaning intervals for the probe are to be determined by the user or the service tech, based on water conditions.  The 

use of water filters, or the type of water filter that is being used can impact the service interval.  Intervals can be from 

one month to several years, however, replacing rather than cleaning the probe is preferable.

WARNING:

 Disconnect electrical power before removing access panels!

CAUTION: 

This procedure involves working with hot water and hot surfaces!

1.  Unplug the power cord and shut off the water line.
2.  Remove the top cover of the coffee brewer. Locate the heating tank and  

remove the top cover.

3.  Open the hot water faucet and drain the tank to a level about 3” below the tip of the probe.
4.  Allow some time for the heating tank and liquid level probe to cool down before proceed-

ing.

5.  Clean the tip of the probe using a Scotch-Brite

™  

scuff pad. 

6.  If a white residue is still visible on the probe, remove the probe and soak it in vinegar or a 

scale removing chemical. Repeat this step until the probe is clean. 

Cleaning the Satellite Server

To clean the satellite components, prepare a mild solution of detergent and warm water..

1.  Remove lid from satellite. Clean the lid at the funnel area with a spiral brush and detergent solution. 
2.  Rinse the lid, removing all traces of cleaning solution.
3.  Unscrew the handle/bonnet assembly and remove it from the dispensing faucet.
4.  Pull the silicone seat cup from faucet stem and inspect it for wear, cracks, or hardening. Replace the seat cup 

if necessary.

Summary of Contents for G4GEMT

Page 1: ...e Manual G4 Gemini Twin Coffee Brewer Wilbur Curtis Co Inc Symbols WARNINGS To help avoid personal injury Important Notes Cautions from the factory Sanitation Requirements NSF International requires t...

Page 2: ...le 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 brew button i...

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: ...e and menu selections available from the MAIN MENU Menu Tree Tap Curtis logo 5 times to enter Programming Mode When installing new control board default is Gemini Twin Three Batch Applies to Gemini mo...

Page 5: ...ements gallons 100 gallon increments this only only resettable reset to restore factory defaults US units or Metric units Maintenance interval Service telephone number MED during brewing 120 Min on GE...

Page 6: ...c Off 30 Sec On 30 Sec Off 40 Sec On 40 Sec Off 50 Sec On 50 Sec Off 60 Sec On 60 Sec Off Off 10 Sec 15 Min 10 second increments 5 Min 25 Sec 3 Min 32 Sec 1 Min 52 Sec till end of brew cycle till end...

Page 7: ...l run error overflow Open sensor Excess temperature UPM UCM communication minutes on the intial tank fill or 120 seconds on large brewers and 30 seconds on CGC brewer in Break in the UPM UCM communica...

Page 8: ...8 Tap Curtis logo 5 times to enter Programming Mode The PASSWORDS screen will Brew Access Code...

Page 9: ...Connect an empty flash drive into the USB port on the brewer The UCM on the brewer will upload all of the particular setup data onto the flash drive The yellow LED on top of the touch screen will lig...

Page 10: ...10 Illustrated Parts Main View 1 2 3 4 5 6 7 8 9 10 16 17 18 19 11 12 13 14 15 24 25 26 27 28 29 30 31 20 21 22 23...

Page 11: ...1 CURRENT SENSOR ASSY G4 14 WC 39462 LABEL BOTTOM PANEL GEMTS 15 WC 1809 FAUCET PS HSP SERIES HOT WATER 1 2 20 UNF 16 GEM 6 FILTER 500PK GEM 12 230A 17 WC 3417 BREW CONE ASSY W SPLASH POCKET BRWN STYL...

Page 12: ...KIT DUMP VALVE LEFT 32A WC 853 VALVE BREW DUMP LEFT 240V 12W GEM12D TP TPC 33 WC 442 SOLENOID LOCK BREW CONE RIGHT 120VAC 33A WC 446 SOLENOID LOCK BREW CONE RIGHT 220V THERMOPRO GEMTS 34 WC 2977 101K...

Page 13: ...13 Electrical Schematic...

Page 14: ...eaning intervals for the probe are to be determined by the user or the service tech based on water conditions The use of water filters or the type of water filter that is being used can impact the ser...

Page 15: ...8 LEG SCREW BUMPER 3 8 16 STD GEM 5 8 SWITCH ROCKER RED 120V SPST GEM 5 8 PART ITEM DESCRIPTION Recommended parts to stock Illustrated Parts List GEM 3 SATELLITE SERVER GEM 5 WARMER GEM 8 WARMER SHOR...

Page 16: ...cleaning The resetting of safety thermostats and circuit breakers programming and temperature adjustments are the responsibility of the equipment owner The owner is responsible for proper cleaning and...

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