Service Manual – G4 Milano Twin Brewer
Contents
1. 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 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 For the latest specifications and information go to www wilburcurtis com Tel 800 421 6150 Technical Support 1 800 995 0417 M F 5 30am 4 00pm PT Fax 323 837 2410 Email techsupport wilburcurtis com 1 QUICK START Your Curtis G4 Gold Cup Series is Factory Pre Set for Optimum Performance After connection to water and power turn on the brewer at the rear toggle switch You will hear a beep and the status lights will come on for a moment The screen will display Next is displayed Water will fill the tank 2 3 minutes depending on water flow rate When the proper level is reached will appear on the screen It takes approximately 30 minutes to reach the set point temperature Control will display when temperature re2. assembly from the faucet and disassembly removing spring seat cup and shaft b Clean and rinse parts Place in sanitizing solution for 5 minutes remove and air dry 5 Assemble a When all pieces are completely dry assemble the server 12 Rough In Drawing 20 375 51 8 cm 39 879 89 9 23 750 60 3 29 919 59 4 cm 13 Product Warranty Information The Wilbur Curtis Company certifies that its products are free from defects in material and workmanship under normal use The following limited warranties and conditions apply 3 Years Parts and Labor from Original Date of Purchase on digital control boards 2 Years Parts from Original Date of Purchase on all other electrical components fittings and tubing 1 Year Labor from Original Date of Purchase on all electrical components fittings and tubing Additionally the Wilbur Curtis Company warrants its Grinding Burrs for Forty 40 months from date of purchase or 40 000 pounds of coffee whichever comes first Stainless Steel components are warranted for two 2 years from date of purchase against leaking or pitting and replace ment parts are warranted for ninety 90 days from date of purchase or for the remainder of the limited warranty period of the equipment in which the component is installed All in warranty service calls must have prior authorization For Authorizat
3. of this equipment 6 Damagedin transit Equipment damaged in transit is the responsibility of the freight company and a claim should be made with the car rier 7 Abuse or neglect including failure to periodically clean or remove lime accumulations Manufacturer is not responsible for variation in equipment operation due to excessive lime or local water conditions The equipment must be maintained according to the manufacturer s recommendations 8 Replacement of items subject to normal use and wear This shall include but is not limited to light bulbs shear disks 0 rings gaskets silicone tube canister assemblies whipper chambers and plates mixing bowls agitation assemblies and whipper propellers 9 Repairs and or Replacements are subject to our decision that the workmanship or parts were faulty and the defects showed up under normal use All labor shall be performed during regular working hours Overtime charges are the responsibility of the owner Charges incurred by delays waiting time or operating restrictions that hinder the service technician s ability to perform service is the responsibility of the owner of the equipment This includes institutional and correctional facilities The Wilbur Curtis Company will allow up to 100 miles round trip per in warranty service call RETURN MERCHANDISE AUTHORIZATION All claims under this warranty must be submitted to the Wilbur Curtis Company Technical Support Department prior to perf
4. 101 WC 844 101 WC 13450 WC 820WDR WC 2977 101 WC 4306 103 WC 4212 02 WC 29050 WC 10008 WC 39811 WC 10000 WC 10001 DESCRIPTION COVER TOP PANEL L SHAPE LEFT PANEL CENTER SECTION LEFT FAUCET ASSY TPC MILANO KIT BREW CONE GOURMET NON METAL WITH FRESH COFFEE LOGO KIT BREW CONE GEMINI NON METAL WITH FRESH COFFEE LOGO CURRENT SENSOR ASSY G4 RELAY SOLID STATE 40A w INTEGRATED HEATSINK LEG 4 ADJUSTABLE 3 8 16 THREAD STYLIZED COVER CENTER WRAP PANEL INTERSECTION RIGHT FILTER 500PK GEM 12 230A FILTER PAPER 15 x 5 1 2 x 4 3 4 ELBOW 3 8 NPT x 3 8 FLARE PLATED VALVE INLET 2 GPM 120V 10W FUSE HOLDER ASSY w 5A FUSE SWITCH TOGGLE SPST 15A 125Vac RESISTIVE PANEL L SHAPE RIGHT KIT TANK LID ROUND KIT LIQUID LEVEL PROBE FAIL SAFE NON METAL GEN O RING 4 1 2 I D x 0 285 C S SILICONE TUBE SILICONE 1 2 ID x 3 4 OD x 1 8 WALL TUBE SILICONE 05 16 ID x 09 16 OD x 1 8 WALL TANK COMPLETE 220V 3 2500W ELEMENT 6 89 GALLONS KIT ELEMENT HEATING 2 5KW 220V W JAM NUT amp SILICONE WASHERS SENSOR TEMPERATURE TANK GUARD SHOCK HEATING ELEMENT THERMOSTAT HI LIMIT HEATER DPST 277V 40A GUARD SHOCK RESET THERMOSTAT VALVE DUMP LEFT 120V 14W w INTERNAL RESISTOR amp DIODE SOLENOID LOCK BREW CONE RIGHT 120VAC TRANSFORMER 120 230VAC 24VAC 4 8VA w LEADS amp TERMINALS VALVE BYPASS 120V 14W NON ADJUSTABLE w RESTRICTOR WC 2945 HARNESS ASSY COMPLETE TP2T10G4 GEM
5. 3 GRINDER __ LLL I 2 INTERLOCK 2 55 SSR PIN ASSIGNMENTS USE 187 ZI TERMINAL LUG 5 H1 AND H2 CONNECTION ONLY REMOVE amp CAP BRN WIRE END FROM H1 H2 AND H3 CONNECTION REMOVE CAP amp CONNECT BRN WIRE ELECTRICAL RATING TABLE FROM TO C COMMON ON POWER BLOCK VOLTAGE 220V 4 USE THIS DIAGRAM FOR ALL OTHER MODELS WITH ADDED PREFIX WATTAGE SEE TABLE POWER CURRENT LETTERS AND OR SUFFIX NUMBERS ON THEIR PART NUMBERS HAVING WATTS THE SAME ELECTRICAL RATINGS AMPERACE SEE TABLE 3 LOCATE MATED CONNECTORS AWAY FROM HEAT HERTZ 50 60 HZ 2 INSTALL GROUND LUG OVER THE SENSOR ON TANK SENSOR STUD WIRES 3 4G 1 ALL WIRES SHALL BE 18AWG UNLESS NOTED LADDER DIAGRAM NOTES UNLESS OTHERWISE SPECIFIED PHASE 1 PHASE LD GTPTG4 10 REVSION 11 Cleaning and Sanitizing Instructions for Milano Server CAUTION Do not immerse in water Do not place in dishwasher Do not use harsh powders or cleansers containing chlorine Do not use a wire brush or pot scourer to clean inside liner These cleaning and sanitizing instructions are only a guide line to be used for the cleaning and sanitizing of the ThermoPro server Your current in house cleaning and sanitizing methods may be just as effective For cleaning and sanitizing of the server the three sink method is recommended This method consists of a sink with a detergent and water solution a fresh water rinse and a sink fil
6. TS10G4 GEMTIF10G4 VALVE DUMP RIGHT 120V 14W w INTERNAL RESISTOR amp DIODE FITTING SPRAYHEAD ULTEM WASHER 7 80D x 9 16ID x 3 32 THK SNGL D SILICONE NUT 5 8 18 JAM PLASTIC ULTEM SPRAYHEAD ASSY AFS AMBER UNIVERSAL HOST ADAPTER USB LABEL OUTER TOUCH SCREEN TP2T CURTIS LOGO CONTROL MODULE TOUCH SCREEN G4 UNIVERSAL POWER MODULE G4 RECOMMENDED PARTS TO STOCK Electrical Schematic G4 Milano Twin BLK THERMOSTAT MAN RESET DPST SSR 1 40A 277V 40A 600V BLU 10GA BLK 10GA BLK 10GA POWER BLOCK 57 65A 300 450V RED 10GA RED 10GA RED 10GA HEATING ELEMENTS 2 5KW 220V TOGGLE SW SPST 15A 125 250V GRN 12GA STP GRY ALTERNATE TRANSFORMER WIRE HOOKUPS FUSE 5A 250V CHASSIS GROUND WHT BREW CONE LOCK RIGHT 14 PIN CONNECTOR 20 PIN CONNECTOR BREW CONE LOCK LEFT OPTIONAL COMPONENT HEATING TANK 2 0 GPM 10W 120V INLET VALVE CHASSIS GROUND BREW VALVE RIGHT UPM GROUND BREW VALVE LEFT Vdd 5Vdc E BLK Vss Logic Common Data Communication First UJ RED 8 PIN CONNECTOR BYPASS VALVE RIGHT BYPASS VALVE LEFT 3 WIRE SHIELDED CABLE WARMER RIGHT 100W 120V UNIVERSAL TOUCH SCREEN 12Vac 5 PIN CONNECTOR UNIVERSAL POWER MODULE 120Vac 5WVac a BLU BLU E ua WARMER LEFT GRY TOOW 120V
7. WiLBUR Curtis INc Service Manual G4 Milano Twin Brewer Important Safeguards Symbols 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 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 Symbols WARNINGS To help avoid personal injury S Important Notes Cautions from the factory IMPORTANT is Sanitation Requirements 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 e Brew Temperature 200 F Water Bypass On for LARGE amp MEDIUM Brew Only Brew Volume Set to Vessel Requirement System Requirements e 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 CAUTION Please use SETUP STEPS eel this setup procedure 1 The unit should be level left to right front to back on a secure surface before attempting to use ife brewer atre the 2 Connect the water line to the water
8. aches the set point The unit is now ready to brew COFFEE BREWING INSTRUCTIONS 1 Brewer should be ON Confirm at the rear toggle switch The LCD screen should read Ready to Brew 2 Place an empty Milano 175 gallon server under the brew cone 3 Placea clean 4 Fill brew cone with 9 Transfer filled brew 6 Touch desired filter into the brew ground coffee cone to brewer brew button cone Brewing will begin immediately WARNING TO AVOID SCALDING Do not remove brew cone while brew light is flashing Touch Screen Control Module The touch screen turns on when power is available to the controller The screen will contain standard control feature such as symbols and buttons Pressing these elements with your finger tip will activate the programming functions The default screen as well as some added control buttons are shown in the illustration below STATUS LIGHTS BREW BUTTONS brew CURTIS LOGO TO ENTER PROGRAMMING Tap Curtis logo 5 times to bring up the ACCESS CODE screen CONTROL SYMBOLS All of these symbols may not be visible at one time 2 RETURN TO HOME UNDO SCROLL RETURN TO PREVIOUS PROGRAMMING ACCESS CODE screen Default is 1 234 Once the code is entered press OK The Main Menu screen will appear Menu Tree ENTER ACCESS CODE MAIN MENU screen contains five control icons RECIPES CONTROL SETTINGS BREW SETTINGS MODEL SELECT and EXIT This chart explains
9. how to enter the program mode and menu selections available from the MAIN MENU a aA RE zn Ready to brew RECIPES lt Enter 1 2 3 4 to access the Main Menu Tap Curtis Logo 5 Times to Enter Programming Mode MODEL SELECT Recipe and brew parameters will be reset OK CANCEL CZ o BREW SETTINGS Prev Maint Select Button Brew By Volume One Batch Two Batch Three Batch Brew Time Pre Infusion Pulse Brew On Off Single Cup Three Batch Bypass On Off Coy Paper Cup Menu Features Recipes FUNCTION TO SET SETTING RANGE FACTORY SET DEFAULT NOTES COMMENTS Gourmet STD Light Roast Dark Roast High Global Recipes Yield Filter Pack Decaf Gourmet STD Home Control Settings FUNCTION TO SET SETTING RANGE FACTORY SET DEFAULT NOTES COMMENTS 170 F 206 F 2 F sens Increments Disabled 1 Hr 12 Hr 1 Hr Increments LED vee lt 10 Hr on GEMTIF GEMSIF gt Increments Audible alarm when time is lt OFF gt lt HIGH gt lt MED gt lt LOW gt lt MED gt During Brewing expired Only shows available OFF 20min 240min 10 OFF on GEMTS GEMSS when a machine has Warmer Disabled on GEMTS GEMSS gt Note This function is only visible on Gemini Units Warmer Settings Quality Timer Minute Increments lt 120min on GEMTIF GEMSIF Elements Also this f
10. inlet fitting on the rear of the unit Water volume flow to the machine should be instructions can result in injury or the consistent Use tubing sized sufficiently to provide a minimum flow rate of one gallon per minute voiding of the warranty IMPORTANT Equipment to be installed to comply IMPORTANT with applicable govern Model e G4TPC2T 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 A water filtration system will greatly prolong the life of the unit and enhance the quality and taste of the product e NOTE A water filtration system must be used to help maintain trouble free operation In areas with extremely IMPORTANT mental plumbing electrical codes having jurisdiction NSF International requires the following water connection 1 Aquick disconnect or additional coiled tubing at least 2x the depth of the unit is required so that the unit can be moved for cleaning NEN CAUTION DO NOT 2 This unit must be installed with adequate backflow protection to comply with applicable federal state and weet connect this brewer to hot local codes water The inlet valve is 3 Water pipe connections and fixtures directly connected to a portable water supply shall be sized installed not rated for hot water and maintained in accordance with federal state and local codes 3 Connect the unit to electrical outlet with appropriate
11. ion call the Technical Support Department at 1 800 995 0417 Effective date of this policy is April 1 2003 Additional conditions may apply Go to www wilburcurtis com to view the full product warranty information CONDITIONS amp EXCEPTIONS The warranty covers original equipment at time of purchase only The Wilbur Curtis Company Inc assumes no responsibility for substitute replace ment parts installed on Curtis equipment that have not been purchased from the Wilbur Curtis Company Inc The Wilbur Curtis Company will not accept any responsibility if the following conditions are not met The warranty does not cover and is void under the following circumstances 1 Improper operation of equipment The equipment must be used for its designed and intended purpose and function 2 Improper installation of equipment This equipment must be installed by a professional technician and must comply with all local electrical mechanical and 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 excessive or low water pressure and 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 equipment owner The owner is responsible for proper cleaning and regular maintenance
12. led with an aqueous sanitizing solution Immerse in commercial BarTabs Sani Tabs sanitizing solution The solution must be warm Let the parts soak at least one minute 1 Daily Rinse the unit after use a Rinse unit with warm water and empty completely b Fill unit with warm water c Openunit and empty contents completely 2 Clean and sanitize the lid assembly a Remove lid from unit and submerse it in cleaning solution cleaning thoroughly b Using the supplied brush clean inside the filling tube c Rinse with clean water d Submerse in sanitizing solution for 5 minutes then air dry completely 3 Cleaning and sanitizing body assembly a Pour a cleaning solution into the open server With a sponge brush thoroughly clean inside liner b Rinse the unit using a fresh water rinse c Fully fill unit with sanitizing solution Allow to sit for 5 minutes then drain through the faucet Remove faucet and gauge glass from unit and brush out with cleaning solution e With the faucet removed clean the silicone elbow fitting Tank to Faucet Tube Use a tube brush soaked in cleaning solution insert it through the faucet shank Rinse by pouring water from inside the unit allowing rinse water to flow into a sink until water runs clear f Wipe outside the outside surfaces of the unit with a moist clean cloth g Place the body assembly upside down on a rack to thoroughly air dry 4 Cleaning the faucet parts a Unscrew the bonnet handle
13. ly and repeats TWICE during that brew cycle It shall clear upon the next brew and if the same low flow exists again it will re appear ERROR MESSAGES STOPS BREWING MESSAGE DISPLAY ERROR DESCRIPTION CAUSE Water Level Error Fill run error Overflow The fill solenoid has either run for more than 10 service Required minutes on the initial tank fill or 1 5 minutes in 1 800 000 0000x normal operation Sensor Error Open Sensor Break in the temperature thermistor circuit or short Service Required curculit 1 800 000 0000x Over Temp Error Excess Temperature The sensor is reading that temperature in the service Required heating tank has risen above 210 F or sensor has 1 800 000 0000x shorted to ground Lime Scale Error Water level probe resistance above error threshold Service Required test value 180kOh 1 800 000 0000x n Internal Error 1 UPM UCM Communication Break in the UPM UCM Communication circuit Service Required 1 800 000 0000x Illustrated Parts Heating Tank Illustrated Parts Top Wrap EN Parts List 10 ITEM NO PART NO WC 61289 WC 61284 WC 61286 WC 1853 WC 37259 WC 37308 WC 14045 101 WC 8559 WC 3528 WC 61290 WC 61287 GEM 6 GEM 6 101 WC 2402P WC 847 WC 1501 WC 102 WC 61285 WC 37008 WC 37406 WC 43067 WC 5350 WC 5310 WC 62030 WC 934 04 WC 1438 101 WC 4382 WC 522 WC 43055 WC 821WDR WC 442 WC 589
14. orming any repair work or return of this equipment to the factory All returned equipment must be repackaged properly in the original carton No units will be accepted if they are damaged in transit due to improper packaging NO UNITS OR PARTS WILL BE ACCEPTED WITHOUT A RETURN MERCHANDISE AUTHORIZATION RMA RMA NUMBER MUST BE MARKED ON THE CARTON OR SHIPPING LABEL All in warranty service calls must be performed by an authorized service agent Call the Wilbur Curtis Technical Sup port Department to find an agent near you 7 7 1 10 6 EDR 7851 2o WILBUR CURTIS CO INC 6913 Acco St Montebello CA 90640 5403 USA p Phone 800 421 6150 Fax 323 837 2410 e Technical Support Phone 800 995 0417 M F 5 30A 4 00P PST Web Site www wilburcurtis com E Mail techsupport wilburcurtis com 7 11 F 3806 rev NC
15. r AFS Sprayhead 0 to 19Min 59sec Note These are the default times Brew by Time for a Amber AFS Sprayhead MEDIUM BREW 3min 32secs using a Amber AFS Sprayhead 1min O1secs increments SMALL BREW 1min 52secs using a Amber AFS Sprayhead Disabled OFF 10 secs On 10 secs Off 20 secs On 20 secs Off 30 secs On 30 secs Off Disabled Pre Infusion 40 secs On 40 secs Off 50 secs On 50 secs Off 60 secs On 60 secs Off OFF Pulse Brew On Off Note These are the default times MEDIUM BREW 10 using a Amber AFS Sprayhead for a Amber AFS Sprayhead m BREW Off using a Amber AFS Sprayhead Copou mose OS Seconds Tamin 5 Seconds 15min LARGE BREW 35 using a Amber AFS Sprayhead By Pass On Off Off 5 50 in 5 System Fault Messages WARNING MESSAGES ALLOWS BREWING MESSAGE DISPLAY WARNING DESCRIPTION CAUSE Component Failure Service Required 1 800 000 0000x Current in one of the components is not within normal range A Component has Failed Maintenance Required Maintenance Required Brew count Gallons Since Reset exceeds Service Required 1 800 000 0000x programmed Preventative Maintenance period p Meu Scale Starting to Build Up Water level probe resistance above warning 1 800 000 0000x Water Level Probe threshold test value 23k Ohm Low Water Flow Warning Low Water Flow If the Inlet valve remains on longer than 40 t 300 050 0000 Seconds during the brew cycle on
16. unction is visible when Gemini models are selected Off Tank temperature maintained at 200 On Tank temperature is not maintained 5 140 Tank temperature re maintained at 140F Energy Save Mode Voice sounas onon ey omer Voice Volumes 0 09 Turns Speaker Volume Up or Down 100 5 Increments If Applicable Diagnostics Auto Test This Function Runs A Diagnostic Test On All Systems In The Brewer Brew Cones Must Be Inserted And Vessels Must Be Placed Under Brew Cones With Auto Test Auto Test Must Be Limited To Only Two Cycles Three Cycles Will Overflow The Tank Display Settings Off 1000 to 20000 Gallons 1000 Maintenance Interval Prev Maint Service Number Resetable Resetable For maintenance purpose Resetable p Menu Features Control Settings Continued Master Reset Are you sure Yes No X Reset to Restore Factory Brew Settings FUNCTION TO SET SETTING RANGE FACTORY SET DEFAULT NOTES COMMENTS LARGE BREW 2000z LARGE BREW 20007 807 using Amber AFS Sprayhead 80z using a Amber AFS LARGE BREW 20007 807 using Amber AFS Sprayhead Brew by Volume ae bs MEDIUM BREW 1320z 4oz using a Amber AFS Sprayhead Set Press Brew tastari Press 19Min 59sec Brew to stop SMALL BREW 64oz 40z using a Amber AFS Sprayhead LARGE BREW 5min 25secs using a Ambe
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