Service Manual – G4 Single Head 1 Gallon Brewer
Contents
1. 3417 WC 10001 WC 4212 02 WC 29050 WC 1501 DESCRIPTION VALVE BYPASS 120V 14W NON ADJUSTABLE W RESTRICTOR WC 2945 KIT DUMP VALVE RIGHT KIT SPRAYHEAD FITTING PLASTIC GASKET 1 00 OD x 625 ID x 030 THK RED SILICONE 40 SHORE TRANSFORMER 120 230V 24V 4 8A WILEADS amp MOLEX CONNECTOR SOLENOID LOCK BREWCONE RIGHT 120VAC VALVE INLET 2 GPM 120V 10W CONTROL MODULE UCM TOUCH SCREEN G4 BREW CONE ASSY W SPLASH POCKET BROWN STYLIZED GEM HOT COFFEE UNIVERSAL POWER MODULE G4 NUT 5 8 18 JAM PLASTIC ULTEM SPRAYHEAD ASSY AFS AMBER FUSE HOLDER ASSY w 5A FUSE RECOMMENDED PARTS TO STOCK Illustrated Parts List ITEM NO PART NO 34 WC 5350 35 WC 5231 36 WC 5310 37 GEM 6 Rough In Drawing Cleaning the Coffee Brewer DESCRIPTION TUBE SILICONE 1 2 ID x 03 4 OD x 1 8 WALL COMPOUND SILICONE 5 OZ TUBE TUBE 5 16 ID x 1 8W SILICONE FILTER 500PK GEM 12 230A WC 37308 RECOMMENDED PARTS TO STOCK Regular cleaning and preventive maintenance is essential in keeping your coffee brewer looking and working like new WARRANTY Rinse and dry the brewcone 1 2 3 4 D CAUTION Do not use cleansers bleach liquids powders or any other substance containing chlorine These products promote corrosion and will pit the stainless steel USE OF THESE PRODUCTS WILL VOID THE Wipe exterior surfaces with a moist cloth removing spills and debri2. right front to back on a secure surface 2 Connect the water line to the water inlet fitting on the rear of the unit Water volume flow to the machine IMPORTANT Equipment should be consistent Use tubing sized sufficiently to provide a minimum flow rate of one gallon per minute werd 0 installed to comply with applicable govern NOTE A water filtration system must be used to help maintain trouble free operation In areas with mental plumbing electrical codes Meat extremely hard water we highly recommend the use of a Curtis approved water filter For our full line having jurisdiction 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 t thi to hot nae 4 1 A quick disconnect or additional coiled tubing at least 2x the depth of the unit is required so aed j that the unit can be moved for cleaning 2 This unit must be installed with adequate backflow protection to comply with applicable federal state and local codes 3 Water pipe connections and fixtures directly connected to a portable water supply shall be sized installed and maintained in accordance with federal state and local codes ao ee NSF International requires the following water connection IMPORTANT 3 Connect the unit to electrical outlet with appropriate amperage rating see serial tag on machin
3. 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 Authorization 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 Compa
4. ESCRIPTION CAUSE The fill solenoid has either run for more than 10 minutes on the initial tank fill or 120 Seconds on Large Brewers and 30 Seconds on CGC Brewer in normal operation Water Level Error Fill run error Overflow Break in the temperature thermistor circuit or short Sensor Error Open Sensor Curculf The sensor is reading that temperature in the Over Temp Error Excess Temperature heating tank has risen above 210 F or sensor has shorted to ground Internal Error 1 UPM UCM Communication Break in the UPM UCM Communication circuit Brew Access Code H Enter Programming Mode Tap Curtis Logo 5 Times CESS CODE Enter 1 2 3 4 to access the Main Menu I Dos X 910 44 mn CONTROL SETTINGS BREW SETTINGS MODEL SELECT BAA SETTINGS SUMMARY EXIT RECIPES Temp Settings The Password screen will Quality Timer PASOWORDS display two selections l Programming Password or Energy Saving a u cle Edit Brew Password To set up or change the brew Disabled password press the Enabled Edi Enable button then the i i Edit button The Brew Diagnostics 2 Password screen will Display Settings appear Prev Maint When resetting a password press clear then select a new password numbers only If enabling the brew password select a password code Press the enter icon to set the new password Press home icon to return to ma
5. RY 120 240 12V 4 8VA 14 PIN CONNECTOR 20 CONNECTOR 2 0 GPM 10W 120V INLET VALVE 5 GPM 12W 120V GROUND BREW VALVE RIGHT 5 GPM 12W 120V BYPASS VALVE RIGHT STP VIO BLK BLUE UNIVERSAL POWER MODULE UPM 120Vac 5WVac of Conductor Elements Voltage V 120 92 1100 110 2700 95 210 92 110 50 60 120 120 240 240 110 220 127 3300 120 240 1 3600 120 9 1200 110 220 107 2350 120 240 102 2450 120 15 120 240 138 3300 110 2270 132 2900 120 125 1500 120 240 129 3100 20 138 1650 20 138 1650 2900 120 240 12 1 50 60 G4 TP2S52 50 60 G4 TP2S63 G4 TPC2S63 2904 50 60 1150 64 1552 50 60 4 1563 50 60 1600 GajTPC2S52 120 1200 M LOCK RIGHT WHT WARMER 100W 12 Rating W Seo HERTZ 50 60 HZ WIRES 2W 3W PHASE 1 PHASE 1150 HEATING ELEMENTS 2X 1 6KW 120V OV Element SSR PIN AC OUTPUT ASSIGNMENTS USE 187 TERMINAL LUG VOLTAGE 120V 220V WATTAGE SEE TABLE SEE TABLE AMPERAGE SEE TABLE SEE TABLE f LADDER DIAGRAM PART NUMBER LD GTPSG4 635 REVISION J Page Intentionally Left Blank Product Warranty Information The Wilbur
6. UNCTION 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 Disabled 1 Hr 12 Hr 1 lt gt Hr Increments popes ON GEMUS EMS Note This function is only visible on Gemini Units Warmer Settings Bp lt 10 Hr on GEMTIF GEMSIF gt Increments lt OFF gt lt HIGH gt lt MED gt lt LOW gt lt MED gt During Brewing Disabled 20min Quality Timer 240min 10 Minute Increments Audible alarm when time is expired Only shows available lt Disabled on GEMT GEMS TP2T TP2S OMG TPC2T TPC2S gt when a machine has Warmer lt 120min GEMTIF GEMSIF gt Elements Also this function is visible when Gemini models are selected Tank temperature is maintained at No Change the temp setpoint default Energy Save Mode Activates after 4 Turn Tank Heater Off No Change Tank is turned off HOU OUINGENVIY Reduce tank temp to Tank temperature maintained at 140 F 140F Hide Models GEMT GEMS TP2T TP2S OMGT OMGS Quality Timer Hide Show Displays Quality Timer Show Models GEMTIF GEMSIF Rinse Server Hide Show Show Displays Rinse Server Message Service Telephone Off 1000 to 20000 Gallons 1000 Increments Number Resettable Resettable purpo
7. WiLBUR Curtis Company NC service Manual G4 Single Head 1 Gallon 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 user 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 Important Notes Cautions from the factory Model is Sanitation Requirements e G4TP1S 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 Brew Temperature 200 F Water Bypass Turned On for LARGE amp Brew Only Brew Volume Set to Vessel Requirement System Requirements CAUTION Please use e Water Source 20 90 PSI Minimum Flow Rate of 1 GPM IMPORTANT this setup procedure Electrical See attached schematic for standard model or visit www wilburcurtis com for your model before attempting to use this brewer Failure to follow the instructions can result in injury or the SETUP STEPS voiding of the warranty 1 The unit should be level left to
8. e 4 Once power has been supplied to the unit flip the toggle switch to the ON position located on the rear of ISO 9001 2008 REGISTERED 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 WILBUR CURTIS CO INC 5 Water in the heating tank will require approximately a half hour before reaching operating temperature 6913 West Acco Street factory setting of 200 F Where applicable turn on the Universal Control Module UCM When the unit Montebello CA 90640 5403 reaches operating temperature it will display READY TO BREW For the latest information go to www wWilburcurtis 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 reaches the set point The unit is now ready to brew COFFEE BREWING INSTRUCTIONS 1 Brewer should be ON Confirm
9. in menu and exit Brew Counter BREW PASSWORD Passwords Master Reset Regional Settings USB Easy Programming There are two methods that can be used to change the default settings on G4 brewers They can be programmed at the brewer by the touch screen universal control module UCM or the settings can be changed using the USB Universal Serial Bus data port on the side of the brewer Using the USB connection and a flash memory data storage device will easily reprogram the settings simply by copying data The flash drive can upload or download the entire setting from one G4 brewer into another G4 brewer This eliminates the need to walk through the usual steps in reprogramming that would be required when you use the touch screen to make a change This is an advantage for a service technician when standardizing the program settings on multiple G4 brewers Use a USB drive with USB 2 0 support and a type A USB connection Storage capacity should be 2 GB minimum IMPORTANT The flash drive must be completely blank Before starting please erase any files that may be in the USB drive SOFTWARE INFORMATION TRANSFER UPLOAD TO USB 1 Make sure the brewer is on Determine that the G4 brewer you wish to copy is properly programmed for your desired settings 2 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 to
10. 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 performing 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 Depa
11. ny 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 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 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
12. p of the touch screen will light indicating that data is transferring This will only take a second to complete DOWNLOAD TO BREWER 1 Selectthe brewer you wish to make the program changes on The brewer should be on 2 Plug the loaded flash drive into the USB port on the brewer The data copied from the first G4 brewer will automatically down load overwriting all the settings that were on the second brewer The red LED on the UCM will indicate that the download is in process This will only take a second Once the download is complete the UCM will reboot in order for the changes to take effect Remove the flash drive The download is complete The data on the flash drive can be downloaded into as many G4 brewers This screen will be presented whenever the USB flash is inserted Upload Download toUSB 5 action The UCM will always create a backup on the USB flash drive before downloading settings recipes or screensaver settings recipes Present on USB Case 1 Screensaver e Not present on USB oettings recipes file present screensaver not present User has selected Download from USB for settings recipes file C FILE TRANSFER Upload Download to USB from USB No action Case 2 Settings recipes As above but user has selected Upload to 05 for settings O recipes file With this action the overwrite warning appears Not present on USB Illustrated Par
13. rtment to find an agent near you EDR 8930 10 29 13 15 2 rev NC amp WILBUR CURTIS CO INC 6913 Acco St Montebello CA 90640 5403 USA Phone 800 421 6150 Fax 323 837 2410 Technical Support Phone 800 995 0417 M F 5 30A 4 00P PS E Mail techsupport wilburcurtis com Web Site www wilburcurtis com 11 2013 F 3965rev
14. s Slide the brewcone out and clean it Clean the sprayhead area with a moist clean cloth Drain drip tray of coffee Wash out the drip tray Dry the tray Rub a stainless steel polish on the outside surfaces to protect the brewer 13 Electrical Schematic G4TP2S 63 WHT 12GA Gy WHT 12GA BLK 12GA C1 WHT 12GA 11 WHT 18GA INCOMING POWER aum 120 208 240Vac IPH 120 2W 3W G 50 60 Hz GRN 12GA POWER BLOCK 57 65 300 450 5515 GROUND ALTERNATE TRANSFORMER WIRE HOOKUPS 8 PIN CONNECTOR UNIVERSAL TOUCH SCREEN 12Vac 5 CONNECTOR WHT 22AWG GRINDER INTERLOCK 8 ea N 5 lt 4 2 o z 1 3 12GA WHITE WIRE IS ONLY USED WHEN UNIT IS TO BE WIRED IN THE 120Vac CONFIGURATION 2 USE THIS DIAGRAM FOR ALL OTHER MODELS WITH ADDED PREFIX LETTERS AND OR SUFFIX NUMBERS ON THEIR PART NUMBERS HAVING THE SAME ELECTRICAL RATINGS 1 ALL WIRES SHALL BE 18AWG UNLESS NOTED NOTES UNLESS OTHERWISE SPECIFIED 14 47MF 275VAC 120Vac Vdd 5Vdc BLK Ves Logic Common w Data Communication First J RED 5 SHIELDED CABLE BLK CURRENT SENSOR AN 7 BLU 12GA BLK 12GA SSR 1 40A 600V 2 x TOGGLE SWITCH THERMOSTAT DPST MAN RESET 125 25 25 5 Y RED 12GA 40A 277V STP GRY TRANSFORMER POWER DUAL SECONDA
15. se Resettable Reprogrammable allows access to programming screens Reprogrammable allows access Brew Enabled Disabled Disabled prog m to brewing screens wed m Select to Reset to Restore Factory Defaults Display Settings Maintenance Interval Prev Maintenance 1 800 000 0000 x0000 Menu Features BREW SETTINGS FUNCTION TO SET SETTING RANGE FACTORY SET DEFAULT NOTES COMMENTS LARGE BREW 1320z 40z using a Amber AFS Sprayhead To Set Press Brew to start Press Brew to stop SMALL BREW 6402 402 using a Amber AFS Sprayhead Brew by OFF 30sec to Volume 19Min 59sec Brew by 0 to 19Min 59sec Time 4 1 01 increments Disabled When this is Chosen COLD BREW LOCK set to 5 F Pulse Brew secs er On Off Function lt Disabled gt When this is Chosen COLD BREW LOCK set to 5 F Pulse Brew 20 secs 20 secs On Off Function lt Disabled gt 30 secs On 30 secs Off When this is Chosen COLD BREW LOCK set to 5 F Pulse Brew Pre Infusion Disabled On Off Function lt Disabled gt LARGE BREW 3min 32sec using a Amber AFS Sprayhead Note These are the default times for a Amber AFS Sprayhead SMALL BREW 1min 52secs using a Amber AFS Sprayhead When this is Chosen COLD BREW LOCK set to 5 F Pulse Brew On Off Function lt Disabled gt On Off Function lt Disabled gt 06 10 seconds ON 4 Times 10
16. seconds OFF 4 Times then ON Till End of Brew Cycle 50 secs On 50 secs Off 60 secs On 60 secs Off 1 Minute ON 10 seconds OFF 4 Times 10 seconds 4 Times Till end of Brew Cycle 25 seconds ON 5 Times 20 seconds OFF 5 Times then ON Till End of Brew Cycle Pulse Brew On Off D Manual Program PULSE COUNT 1 to 20 pulses ON TIME 5 150 seconds OFF TIME 5 150 seconds 5 second increments E Manual Program PULSE COUNT 1 to 12 pulses ON TIME 0 150 seconds OFF TIME 1 150 seconds 1 second increments LARGE BREW 10 using a Amber AFS Sprayhead Off 5 50 in 1 Note These are the default times for a Amber AFS By Pass Sprayhead On Off SMALL BREW Off using a Amber AFS Sprayhead Off 10 Seconds 15min increments O gt System Fault Messages WARNING MESSAGES ALLOWS BREWING MESSAGE DISPLAY WARNING DESCRIPTION CAUSE Brew count Gallons Since Reset exceeds programmed Preventative Maintenance period Maintenance Required Maintenance Required If the Inlet valve remains on longer than XX Seconds during the brew cycle only 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 XX Alpha 20 secs Gem TP Twin 40 secs Gem TP Single 30 secs Low Water Flow Warning Low Water Flow ERROR MESSAGES STOPS BREWING MESSAGE DISPLAY ERROR D
17. th 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 RINSE RSC VES Before Brewing BREW BUTTONS CURTIS LOGO TO ENTER PROGRAMMING Tap Curtis logo 5 times to bring n a ae e EENE S E up the ACCESS CODE screen CONTROL SYMBOLS All of these symbols may not be visible at one time ee RETURN TO HOME UNDO SAVE SCROLL ENTER PROGRAMMING ENTER ACCESS CODE MAIN MENU Jn Recipes Control Settings Brew Settings Model Select C Settings Summary ACCESS CODE screen Default is 1 2 3 4 MAIN MENU screen contains six control icons Once the code is entered press OK The RECIPES CONTROL SETTINGS BREW SETTINGS Main Menu screen will appear MODEL SELECT SETTINGS SUMMARY and EXIT The access code can be reset in Control Settings PASSWORDS PROGRAMMING Continued This chart explains how to enter the program mode and menu selections available from the MAIN MENU LG LG a MD Ready to brew MD a SM Tap Curtis Logo 5 Times to Enter Programming Mode Enter 1 2 3 4 to access the Main Menu SETTINGS SUMMARY One Batch aos Batch Two Three Batch Two Batch Master Reset Regional Settings fon E Thermopro 1 Gal Singe One Batch Menu Features RECIPES F
18. this at the toggle switch on the back of the brewer The touch screen should read Ready to Brew 2 Place an empty coffee container centered beneath the brew cone WARNING AVOID SCALDING REMOVE THE BREW CONE CAREFULLY The brew cone contains hot coffee grounds The coffee vessel is heavy when full Take precautions to avoid dropping while moving 3 Place a new paper filter into the brew 4 Fill the brew cone with the proper 5 Transfer the filled brew cone to the cone amount of ground coffee brewer 6 Start the brew cycle by hold your finger requires a code to be entered before a brew on the desired brew icon As soon as will start The default is OFF you hear the click of the brew valve the brew cycle has started and you can lift CAUTION When enabled as soon as you While brewing a 1 gallon coffee server icon your finger enter the brew code a brew cycle starts is displayed on the screen with coffee flow Brew Code You may find that when a brew Refer to page 8 for more information about the ing from the brew cone to the server Also Brew Code showing is the brew timer counting down button is pressed a key pad appears on the screen This is a brew lock out feature that 2 the time remaining on the brew cycle 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 but tons Pressing these elements wi
19. ts Main View 10 ITEM Ne OD Oa JIA G J gt PART Ne WC 61509 WC 13462 WC 1825 WC 14045 101 WC 8559 WC 103 WC 3503 WC 3518 WC 58037 102 DESCRIPTION COVER TOP WRAP HARNESS ASSY COMPLETE 64 2510 64 25510 FAUCET ASSY HOT WATER 25 2 CURRENT SENSOR ASSY G4 RELAY SOLID STATE 40A W INTEGRATED HEAT SINK SWITCH TOGGLE NON LIT DPST 25A 125 250VAC RESISTIVE LEG 3 8 16 STUD SCREW BUMPER LEG GLIDE 3 8 16 STUD SCREW COVER CENTER WRAP G4TP1S RECOMMENDED PARTS TO STOCK Illustrated Parts Heating Tank ITEM Ne 10 11 12 13 14 15 16 17 18 19 20 PART Ne WC 5853 102 WC 43062 WC 37266 WC 5502 01 WC 37317 WC 37357 WC 62088DV WC 37365 WC 904 04 WC 1438 101 WC 522 DESCRIPTION COVER TOP HEATING TANK GASKET TANK LID KIT TANK OVERFLOW ELBOW FITTING KIT LIQUID LEVEL PROBE W HEX FITTING O RING amp NUT KIT STRAIGHT FITTING amp BUSHNG 8MM KIT STRAIGHT PLASTIC FITTING amp BUSHING 12MM TANK COMPLETE 1600W 120 220V KIT TANK INLET FITTING KIT ELEMENT HEATING 1 6KW120V W JAM NUT amp SILICONE WASHERS SENSOR TEMPERATURE TANK THERMOSTAT HI LIMIT HEATER DPST 277V 40A RECOMMENDED PARTS TO STOCK 11 Illustrated Parts Top Wrap 12 ITEM Ne 21 22 23 24 25 26 27 28 29 30 31 32 33 PART Ne WC 844 101 WC 37122 WC 2977 101K WC 43089 WC 589 101 WC 442 WC 847 WC 10000 WC
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