Grindmaster 11 User's Manual
Contents
1. Choose the Portion Size Press the middle touchpad until desired volume is lit Choose Decaf or Regular coffee only applicable to dual bean Grind n Brews Press left touchpad Arrow will either point left or right for Decaf or Regular Place a decanter or airpot under the brew basket depending on the model 7 Press Start You will see the coffee bean level go down slightly You will hear the coffee grind Coffee is automati cally ground portioned and placed in brew basket Then ground coffee is automatically brewed The Ready light will now blink indicating that grinding and brewing are in progress This will take 3 4 minutes for a 1 2 gal pot Portions are factory set A stop function is added to the start switch When this switch is depressed it allows the unit to stop during the selected grind brew or grind and brew functions ak N After brewing a the tank must reheat Reheat time is 5 1 2 8 minutes for 120V brewers and half that time for 230V machines Remember that the brewer will not function although the grinder will until the Ready light is on indicating that the water is hot enough to brew A flashing green light indicates that the brewer is reheating or that there is a cycle in progress Do not remove the brew basket while the light is flashing The brew basket must be removed before a new brew can be initiated This feature ensures that the operator discards the old coffee grounds and installs a new2. 8 32 X 1 2 S S 9 71166 NUT TINNERMAN 8 32 S S 10 61626 ELEMENT HEATING 1650 W 120V 71375 ELEMENT HEATING 3500 W 240V 11 70824 THERMODISC BRACKET 12 70410 THERMODISC 13 61317 FITTING 1 8 NPT MF 3 8 BARB 14 61143 NUT PIPE JAM 1 8 NPT 15 07327 CLAMP HOSE 5 8 16 05826 TUBING 3 8 1 0 X 20 LG SILICONE 17 71148 VENT TUBE SUPPORT 18 61108 WATER LEVEL PROBE 19 70821 GASKET WATER TANK 20 61700 TANK 16 WATER 21 61243 GROMMET DUMP VALVE 22 61229 GROMMET PLUG 23 71155 TUBING 5 16 1 0 X 2 LG SILICONE 24 71258 SPRAY TUBE S S 25 70341 FITTING 90 DEGREE ELBOW SILICONE 26 12152 SIPHON TUBE 27 71093 TUBE SPLICE 28 71155 TUBING 5 16 I D X 9 1 2 LG SILICONE 29 61237 FITTING HOSE TO 1 4 FLARE SWIVEL 30 71155 TUBING 5 16 1 0 X 1 LG SILICONE 31 61104 WATER FILL VALVE 120 VAC 32 71129 NUT 8 32 KEPS S S 33 05826 TUBING 3 8 I D X 7 1 2 LG SILICONE 34 61152 TEE 7 16 X 7 16 X 7 16 BARBED 35 05826 TUBING 3 8 1 D X 11 LG SILICONE 36 61232 PLUG 3 8 BARBED DRAIN 37 05826 TUBING 3 8 I D X 16 LG SILICONE 38 82119 PANEL SERVICE 39 61102 DUMP VALVE 120 VAC Grind n Brew Coffee Systems Page 19 Exploded View Hot Water Tank Assembly Export Units GRINDHEAD ASSEMBLY 71133 71124 80025 71000 71030 71123 71179 71052 07046 02 71177 71176 85281w 86812 71012 71081 70483 71001 71100 71298 86341 86340 71080 23
3. ADJUSTABLE NON SKID LEVELER 41 0 138 0 A 0 20 71 STRAIN RELIEF BUSHING t POWER N A LEFT SIDE PANEL LEFT SIDE PANEL SS MODELS SCREW 8 32 X 1 2 PH IR SS TINNERMAN 8 32 SS SEE UPPER ASSEMBLY RIGHT SIDE PANEL 71034 RIGH D AN H MOD 29171957 DISPLAY BOARD 1 1 1 CONTROLLER PLATE 28 CONTROL BOARD 9 DISP BOARD 1 32 36 STAND OFF FRONT PANEL SHEETMETAL PLUG PLASTIC HOLE BLACK AIRPOT VERSION ONLY AIRPOT OVER 33 71285 RI AIRPOT BASE ASSEMBLY LEG 5 8 16 STUD PLASTIC 5 SCREW 8 32 X 5 8 PH PN BLACK Grind n Brew Coffee Systems REV M ECN 2101 REV L ECN 1565 11 00 REV K ECN 1482 9 00 REV J ECN 1129 7 99 REV H ECN 1107 6 99 REV G GNBISO 2 DWG REV F 17 6 2 Mounting Sheet Assembly PART NO DESCRIPTION 1 71546 GRAVITY FAUCET 2 86836 LOCK WASHER 1 2 INTERNAL 3 71148 TUBE SUPPORT 4 06491 SPRAY HEAD DEFLECTOR 5 71368 SPRAY HEAD NOZZLE 06490 SPRAY HEAD NOZZLE CDP 6 71054 MOUNTING SHEET 7 71046 SPRAY HEAD BRACKET older models 8 07220 SPRAY HEAD NUT 9 71448 GREEN INDICATOR LIGHT 10 71449 RED INDICATOR LIGHT 11 70445 WHITE MOMENTARY SWITCH 12 07206 05 NUT FAUCET 13 71140 ASSY SNGL BEAN PRE S N 71303 T PAD ASSY DUAL BEAN 1063198 71451 ASSY SNGL BEAN 71452 T PAD ASSY DUAL BE
4. 07044 02 24 71056 25 71282 26 71171 27 71004 28 71130 29 71257 30 71057 31 86872 32 86864 34 71169 35 07026 07 0 00 4 gt ON Hr gt 20 Grind n Brew Coffee Systems DESCRIPTION 230 VOLT GRINDER MOTOR THRUST BEARING TENSION SPRING GRIND HEAD CHAFF SPRING CHAFF SPRING RETAINER SCREW 4 40x1 4 PH FL SOLENOID BRACKET SCREW 8 32x1 4 PH PN SCREW 8 32x3 8 PH FL HD FEEDWORM ASSEMBLY BURRS SCREW 10 32x5 16 DRIVE COUPLER SHEAR PLATE SHEAR COVER GRIND CAP SCREW 5 16 18x5 8 ADJUSTING BEARING ADJUSTING SCREW LOCKING NUT WETNESS SEAL GASKET SCREW 8 32x1 2 KEEPER PLATE SPRING BRACKET SHUTTER SPRING SHUTTER GLIDE SPRING PIN 220 VOLT SHUTTER SOLENOID BEARING SHEET BOLT 1 4 20x1 2 CAGE N T 1 4 20 DECAL COARSE FINE SCREW 8 32x3 8 PH PN 2 000 OO AU N HE OUPUWN O 1 O OG JOQ ON O 71090 71174 60288 71175 71277 71199 71082 71279 71117 71084 71189 86913 71171 60007 71193 71122 Single Bean Upper Assembly DESCRIPTION HOPPER CRADLE ASSEMBLY FLANGED SLEEVE 183 OD SS SCREW 6 32 X 1 2 PH RD HD SS HOPPER LID ASSEMBLY HOPPER ASSEMBLY WINGNUT ESNA 1 4 20 BOLT CARRIAGE 1 4 20 X 1 2 SS BEAN SHUTOFF HOPPER GASKET SCREW 8 32x1 2 PH TR SS FRONT PANEL ASSEMBLY N
5. 9 Pulse Brew Pour Time Displays the current 0 05 to 1 00 in sets the amount of pour time in selection depending on Brew minutes seconds each pulse Cycle 10 Pulse Brew Delay Time Displays the current 0 05 to 1 00 in minutes sec sets the amount of delay time selection depending on Brew onds between each pulse Cycle 11 Show Low Temp No Brew Ltn None 12 Set Low Temp No Brew Displays the current OFF or enable or disable selection Factory default is YES Grind n Brew Coffee Systems Page 9 Brew Volume Setting Menu This feature sets the brew time based on water volume of a desired container Before using this feature remove the brew basket remove the spray head and place the desired container in place underneath the brewer The Brew Volume Setting Menu is started by selecting a brew cycle and holding in the START switch for 5 seconds The display will show Pro at this time Again press the START switch and water will begin dispensing into the container The display shows a Brew Time count at this time When satisfied with the water level again press the START switch At this point the Brew Time flashes on the display for 20 seconds Press the START switch again within the 20 seconds to accept the new Brew Time No changes will be made if the Brew Time is not confirmed in this last step There are four independent brew times in the unit The set Brew Time is
6. Bean Counter Menu is accessed by holding the UP and DOWN keys for 5 seconds If the counter is normally hidden it will be shown here The user can reset the counter through this menu Pressing the SET button will display REs and the user can select YEs or no with the UP and DOWN keys Pressing the SET key finalizes the selection This menu times out after 10 seconds and is disabled by the User Lockout Jumper User Settings The Grind n Brew has several factory set options that can be modified by the user These are divided into two categories Universal Settings or Brew Settings Universal Settings pertain to the whole unit and Brew Settings pertain to one of the four available brew cycles Regular Full Regular Half Decaf Full and Decaf Half All settings are retained during a power loss The original factory settings can be restored by using the System Restore Function User Settings Universal Settings Brew Settings x 4 Temperature Scale Auger Time Water Temperature Pulse Brew Pulses Low Temp No Brew Enable Pulse Brew Pour Time Pulse Brew Delay Time Brew Time Pulse Brew Cycle Pulse Brewing is a feature that increases the control and performance of the Grind n Brew machine By pulsing water during the brew cycle you allow greater contact time and better extraction of the coffee Ultimately you will achieve a bolder and more consistent cup of coffee by using this feature If puls
7. WARMERS 0 0 0 0 1 1 1 1 FEATURES GRIND N BREW x x x x x x x GRIND ONLY x x x x x x x BREW ONLY x x x x x x x HALF BREW x x x x x x iu PAINTED CASING x x x x STAINLESS CASING x x x AGENCY APPROVALS U L ELECTRICAL x x x x x x x CUL ELECTRICAL x x x x x x x U L SANITATION x x x x x x x DIMENSIONS WIDTH INCHES 9 3 8 9 3 8 9 3 8 9 3 8 9 3 8 9 3 8 9 3 8 9 3 8 DEPTH INCHES 24 1 4 24 1 4 24 1 4 24 1 4 24 1 4 24 1 4 24 1 4 24 1 4 HEIGHT INCHES 37 1 2 37 1 2 37 1 2 37 1 2 32 3 4 32 3 4 32 3 4 32 3 4 WEIGHT LBS 80 80 80 80 80 80 80 80 SHIPPING WEIGHT 158 95 95 95 95 95 95 95 95 BASED ON 4 LEG HEIGHT INCLUDING WATER INLET FITTING Page 4 Grind n Brew Coffee Systems Unit Installation IMPORTANT This brewer should be installed by a knowledgeable and experienced commercial equipment installer Brewer Contents Your brewer package should include the following 1 Grinderbrewer either single or dual bean 1 Operation and Instruction Manual this manual 1 Hose to 1 4 flare fitting part 61237 Tools Required for Installation 2 Phillips screwdriver 9 16 wrench 5 8 wrench or crescent wrench 6 level NOTE Other tools may be needed depending on the type of water supply tubing and location 1 Inspect unit to see if any damage occurred in shipment 2 Position brewer on counter Place on sturdy permanent counter top If
8. lock nut 5 Visually inspect the grind adjustment with a small portion of coffee and readjust if necessary 6 Reinstall the front decal panel Figure C Page 12 Grind n Brew Coffee Systems Maintenance Daily Cleaning Cabinet The outside of the machine can be cleaned with a damp cloth a household dusting spray or a stainless steel cleaner Do not use any abrasive such as Scotchbrite or Brillo pads These may mar the finish Wipe the underside of the cabinet hood with a clean cloth Be especially careful when using soap or detergent around the sprayhead Any soap left on the deflector may give an unpleasant taste to the first brews Warmers The warmer plate is easy to clean and will maintain its appearance longer if cleaned regularly Coffee stains can be wiped off with a damp cloth Use detergent or sanitizer for heavy deposits but refrain from using abrasives Weekly Cleaning Refer to Figure D Slide Valve The slide valve behind the spray deflec tor under the cabinet hood should be wiped off with a clean dry cloth Using the finger tab open the slide valve and wipe the ground coffee from inside of the spout seal and slide valve NOTE When the machine is not in use the finger tab will automatically activate every 60 FINGER minutes to keep clear 4 Brew Basket Airpots and Decanters Use mercial grade urn cleaner as directed by manufac turer and rinse thoroughly Figure D Grind
9. you have an airpot brewer install the 4 plastic legs included at the bottom of the brewer Lean the brewer towards its side to expose screwholes under neath for legs Adjust the leg height to suit the size of airpots you will use IMPORTANT Adjust the feet to level the brewer With bubble level check to see that the brewer is level on countertop Water Hook up All Models Refer to Figure A IMPORTANT This equipment must be installed in compliance with applicable Federal State and or Local plumbing codes having jurisdiction Incoming water pressure should be greater than 20 psi and not more than 100 psi 1 The incoming water supply should have a shut off valve connected in line The end should have a female 1 4 flare fitting Water supply should be a 1 4 I D dedicated line branched off a 1 or larger supply line 2 Prior to installing the brewer flush out the water line by running approximately 1 gal of water into a pail This will insure no sediment from a new installation can get in the brewer 3 Make sure your source water is turned off Connect the water line s 1 4 female flare fitting 1 to the 1 4 male fit ting on the hose connector 2 4 Make sure Grind n Brew is unplugged Connect the water line to the brewer with the hose connector 2 5 Turn the water valve on sending water to the brewer If there are any leaks tighten connections to stop leakage Figure A Grind n Brew Coffee Systems Page 5 Ele
10. AN 14 71454 DECAL T PAD DUAL BEAN 15 71455 DECAL T PAD SINGLE BEAN Warmer Assembly PART NO DESCRIPTION 1 12096 11 WARMER PLATE 2 06976 SPACER 3 00845 WASHER 4 71129 NUT KEPS 8 32 SS 5 13029 120 VOLT WARMER HEATING ELEMENT 02200 11 240 VOLT WARMER HEATING ELEMENT 6 13018 WARMER BRACKET 7 71019 WARMER PLATE BOX 8 06957 120 VOLT RED ROCKER SWITCH 10124 240 VOLT RED ROCKER SWITCH 9 71315 COVER SWITCH 10 70631 TUBING HEAT SHRINK Basket Arm Assembly PART_NO DESCRIPTION 1 71183 RIGHT BASKET ARM 2 71184 LEFT BASKET ARM T 71042 BRACKET BASKET ARM 4 71015 CENTER SPRING f 5 71041 RIGHT BASKET ARM SPRING 6 71040 LEFT BASKET SPRING 7 71122 SHOULDER BOLT 5 16 5 8 SS 13 8 71063 SPACER 5 8 0D x 1 4 9 60007 NUT ESNA 1 4 20 SS 10 71092 SWITCH SNAP ACTION 11 71127 SCREW 4 40 5 8 12 71128 NUT 4 40 13 71065 BELLOW 14 60006 WASHER 1 4 ID SAE SS RE GNBISO 1 DWG ECN2129 Page 18 Grind n Brew Coffee Systems Exploded View Hot Water Tank Assembly 1 61762 PLUG 5 8 HOLE 2 61128 PROBE THERMISTOR 12 LG 3 71147 GROMMET PROBE 4 61773 COVER TANK PIC 1 5 70635 FASTON TAB 1 4 X 0 032 6 71129 NUT 8 32 KEPS S S 7 82116 BRACKET TANK 8 71084 SCREW
11. Grind n Brew Coffee Operation and Instruction Manual for Models 11 21 10 20 including H HQ versions Warning Labels Technical Data Unit Installation Water Hook up Electrical Hook up amp Start up Procedure Operating the Touchpad Brewing User Lockout Model Grind n Brew 10H Model Grind n Brew 11H Bean Counter User Settings Pulse Brew Cycle User Menu Brew Volume Setting System Restore Feature Factory Field Test Menu Water System Errors Timer Settings Setting the Grind Maintenance Shear Plate Replacement Troubleshooting Guide Model Grind n Brew 20H Model Grind n Brew 21H Exploded Views Wiring Diagrams Prior authorization must be obtained from Grindmaster Corporation for all warranty claims Grindmaster Corporation 4003 Collins Lane Louisville KY 40245 USA 502 425 4776 800 695 4500 GRINDMASTER 800 568 5715 Technical Service Only FAX 502 425 4664 CORPORATION www grindmaster com Grindmaster Corporation 1997 Patents Pending PRINTED IN USA 0307 Form BW 350 13 Part 70661 Warning Labels The following warning labels were on your grinderbrewer when it shipped from the factory They should remain on your grinderbrewer in good readable condition at all times If one of your labels is missing or damaged order a replacement label immediately Part 71104 Located on outside back grinderbrewer casing N WARNING USE ONLY ON A C
12. IRCUIT THAT IS PROPERLY PROTECTED AND CAPABLE OF THE RATED LOAD N WARNING ELECTRONICALLY GROUND THE CHASSIS N WARNING DO NOT DEFORM PLUG OR CORD N WARNING FOLLOW NATIONAL AND LOCAL ELECTRICAL CODES N WARNING WATER CONNECTIONS SHALL COMPLY WITH THE PLUMBING CODE OF BOCA amp THE FOOD SERVICE SANITATION MANUAL OF THE FDA N WARNING DO NOT USE NEAR COMBUSTIBLES N WARNING FAILURE TO COMPLY RISKS PERSONAL INJURY DAMAGE TO EQUIPMENT FIRE OR SHOCK HAZARD N WARNING READ THE ENTIRE OPERATING MANUAL INCLUDING THE LIMIT OF WARRANTY AND LIABILITY BEFORE BUYING OR USING THIS PRODUCT N WARNING ALWAYS UNPLUG UNIT FROM POWER SUPPLY BEFORE SERVICING Grind n Brew Coffee Systems Page 3 Technical Data Single Bean Domestic Models MODEL 10 10H 10Q 10HQ 11 11H 11Q 11HQ PART 70916 70917 70920 70921 70900 70901 70904 70905 VOLTAGE 120 120 208 240 208 240 120 120 208 240 208 240 FREQUENCY 60Hz 60Hz 60 Hz 60 Hz 60 Hz 60 Hz 60 Hz 60 Hz WATTS 1710 1710 2674 3560 1810 1810 2749 3660 CIRCUIT BREAKER 15 15 20 20 15 15 20 20 NO OF HOPPERS 1 1 1 1 1 1 1 1 HOPPER CAPACITY HOPPER 5 1 2 Ibs 5 1 2 Ibs 5 1 2 Ibs 5 1 2 Ibs 5 1 2 Ibs 5 1 2 Ibs 5 1 2 Ibs 5 1 2 Ibs BREW CAPACITY 1 2 gal 1 2 gal 1 2 gal 1 2 gal 1 2 gal 1 2 gal 1 2 gal 1 2 gal INO
13. LL NO mE TANK HEATER Q MODELS ONLY GRINDER RELAY BLACK CONTACT RED RED WHITE D CIRCUIT GRINDER MOTOR BREAKER CAPACITOR BLK jc BLK NOTE UN 115V MODEL teu eres 7 RETURN LEG OF HEATER IS CONNECTED TO NEUTRAL PINK WHITE Q MODELS CONNECTED TO 12 SHUTTER SOLENOID PO BROWN WHITE KBE DUMP VALVE PURPLE WHITE WATER SOLENOID BLACK LAVENDER WHITE DUAL BEAN MODELS ONLY YELLOW WHITE RIGHT AUGER ECC d uoce J BLACK TRANSFORMER VAITE 120V COM RED LIGHT BLUE RED GRINDER RELAY TAN j RED Vt RED RED HEATER RELAY COIL YELLOW READY LED PURPLE BASKET OUT LED NOWWOSD 31IHA 3qAtr ANIA Nava S9TA2I 3018 1 1 GRAY WHITE RED START SWITCH BASKET SWITCH THERMISTER LOW VOLTAGE DC LOGIC CIRCUIT S WATER LEVEL PROBE 4 WATER TANK GROUND 71148 DWG REV E CONTROLLER Page 22 Grind n Brew Coffee Systems GRINDMASTER CORPORATION Tel 502 425 4776 Fax 502 425 4664 1 800 695 4500 USA amp Canada only Box 35020 e Louisville KY 40232 USA Grindmaster Corporation 1997 www grindmaster com email info grindmaster com 0307 Form BW 350 13 PRINTED IN USA Part 470661
14. OF WARMERS 0 0 0 0 1 1 1 1 FEATURES GRIND N BREW x x x x x x x GRIND ONLY x x x x x x x x BREW ONLY x x x x x x x x HALF BREW x x x PAINTED CASING x x STAINLESS CASING x x x x AGENCY APPROVALS U L ELECTRICAL x x x x x x x CUL ELECTRICAL x x x x x x x x U L SANITATION x x x x x x x x DIMENSIONS WIDTH INCHES 9 1 4 9 1 4 9 1 4 9 1 4 9 1 4 9 1 4 9 1 4 9 1 4 DEPTH INCHES 24 1 4 24 1 4 24 1 4 24 1 4 24 1 4 24 1 4 24 1 4 24 114 HEIGHT INCHES 31 31 31 31 26 1 4 26 1 4 26 1 4 26 1 4 WEIGHT LBS 65 Ibs 65 Ibs 65 Ibs 65 lbs 65 Ibs 65 Ibs 65 Ibs 65 Ibs SHIPPING WEIGHT lbs 80 Ibs 80 Ibs 80lbs 80lbs 8Olbs 80 Ibs 80 Ibs 80 Ibs Technical Data Dual Bean Domestic Models MODEL 20 20H 20Q 20HQ 21 21H 21 21HQ PART 70918 70919 70922 70923 70902 70903 70906 70907 VOLTAGE 120 120 208 240 208 240 120 120 208 240 208 240 FREQUENCY 60 Hz 60 Hz 60 Hz 60 Hz 60 Hz 60 Hz 60 Hz 60 Hz WATTS 1710 1710 2674 3560 1810 1810 2749 3660 CIRCUIT BREAKER 15 15 20 20 15 15 20 20 NO OF HOPPERS 2 2 2 2 2 2 2 2 HOPPER CAPACITY HOPPER 6 1 2 Ibs 6 1 2 Ibs 61 2 Ibs 6 1 2 Ibs 6 1 2 Ibs 6 1 2 Ibs 6 1 2 Ibs 6 1 2 Ibs BREW CAPACITY 1 2 gal 1 2 gal 1 2 gal 1 2 gal 1 2 gal 1 2 gal 1 2 gal 1 2 gal NO OF
15. Systems Troubleshooting Guide The following procedures must be performed by a qualified service technician A CAUTION Unplug power cord from outlet before cleaning or servicing the unit Problem Weak coffee Possible Cause Not enough coffee used Grind is too coarse Water not hot enough Too much water used half brews Coffee bed has dry areas Set to portion more coffee Readjust grind to a finer grind Check spray temp should be greater than 185 F Adjust brew time at the controller Spray deflector broken or missing Replace Strong coffee Too much coffee used Readjust coffee portion Bitter coffee Grind is too fine Coarsen grind setting Grounds in coffee Paper filter collapsed during brewing Use proper filter Brew basket overflowed Too much coffee Coffee ground too finely Double batching Use no more than 3 1 2 oz of coffee Coarsen grind You must dump old coffee and use fresh new filter for each brew Unpleasant taste Water tank or brew basket needs cleaning Clean sanitize de lime Refer to Regular Maintenance section Brewer will not brew Grinder will not start when start button is pushed Basket has not been changed Main power switch turned off No power to outlet Basket out Circuit breaker has tripped Basket has not been changed Remove basket replace filter reinstall Turn main power switch on located on back of unit left
16. UT ESNA 6 32 SPRING SHUTTER NUT ESNA 1 4 20 SS BRACKET SHUTOFF BOLT SHOULDER 5 8 X 5 16 SS Dual Bean Upper Assembly PART NO DESCRIPTION 71222 HOPPER CRADLE ASSEMBLY 71229 HOPPER LID ASSEMBLY 86087 NYLON SCREW 8 32x1 2 SL BD 86086 NYLON NUT 8 32 LOC 71206 HOPPER PARTITION 71210 DUAL BEAN HOPPER ASSEMBLY 71204 SHUTOFF VALVE 86508 CENTER SPRING 71208 SHUTOFF VALVE BRACKET 60007 NUT 1 104 20 71122 SHOULDER BOLT 5 16 5 8 86913 NUT 6 32 ESNA 71228 FRONT PANEL ASSEMBLY 71220 PORTIONER UPPER HALF 86481 AUGER DRIVE SPRING 71177 SCREW 8 32x3 8 PH FL 61304 SCREW 6 32x1 2 PH PN BLACK 71248 PORTIONER COV R PLATE 86482 120 VOLT AUGER MOTOR 71215 AUGER MOTOR BRACKET 71166 TINNERMAN 8 32 S S 86480 AUGER DRIVE FEEDER 71253 RIVNUT 8 32 SECOND GRIP 71304 AUGER MOTOR WIRE HARNESS 71084 SCREW 8 32x1 2 PH PN TYPE F 71219 PORTIONER LOWER HALF 71419 PORTIONER GASKET 71261 8 32 ESNA NUT 07044 02 8 32 X 1 2 PH PN SS SCREW 71252 1 4 20 WING NUT 12074 BRACKET W 1 4 20 STUD GNBISO 5 DWG REV F Grind n Brew Coffee Systems Page 21 Wiring Diagram 115 230V 60Hz q L1 N L2 GROUND m lt R 4 aa MAIN POWER MAIN POWER rg SWITCH SWITCH ON OFF ON OFF e mE pw WARMER SWITCH BLACK BRUWN WHITE WARMER PLATE WARMER LIGHT HEATER RELAY THERMODISC BLACK CUNTACT BLACK t BLACK YE
17. ber IMPORTANT Each output will be turned ON when its number is on the display REGARDLESS of temperature or fill level Be CAREFUL not to overfill the tank and keep electric items out of the way of the brew channel 1 LED Test All LEDs ON Verify that all LEDs turn on 2 Firmware Version Display firmware version Shows the software version of the control 3 Date Code Display date code serial ID Not used with Grind n Brew 4 Non Resetable Bean Scroll non resetable bean counter Shows the total number of seconds the Counter grinder has been grinding non resetable 5 Configuration Inputs Each digit of the display corresponds toa Highest Digit left most configuration input The input is either 1 Double Hopper 0 disabled or 1 enabled 0 Single Hopper Middle Digit center 1 Always show bean count 0 Don t show bean count Lowest Digit right most 4 Grind n Brew Model 0 Grind Only Model 6 Display Water Show averaged A D reading of temperature Show the current temperature in F of the Temperature thermistor 7 Display Water Level 1 Show averaged A D reading of water level 1 If gt 500 water level full If 500 water level not full 8 Display Water Level 2 Show averaged A D reading of water level 2 Not used with Grind n Brew 9 Show Input Display scrolls InPut Input Test Mode 10 Input Test Press each key and the display will show a Hopper Button 12 number related to tha
18. coffee filter User Lockout User Lockout is achieved via the position of the LOCK jumper on the board header Locate the header on the board shown below and place the jumper in the desired position In the Locked position all menus in this document are locked out and the unit will only allow brewing or grinding functions There are two versions of the header 10 pin and 2 pin Both configurations are shown below 10 Pin Version Locked OOOOO 1 LOCK Unlocked OOOOO OOOOD 1 1 LOCK 2 Pin Version User Lockout Jumper R21 C4R9 R28 R27 C14 814 C8 R11 ISP 1 D6 05 Q4 IR37 p Locked J L IL 166 SES mo CU 7 05 Te LOCK R46 GRINDMASTER CORPR32 R31 R30 R29 R18 RI7 RI6 RIS of 71960 A530 059 023 VER 1 18 07 RO FUSE2 oz K6 Unlocked D18 F5 2 O D F3 od TOUCHPAD LEFT TOUCHPAD LOCK User Lockout Jumper Grind n Brew Coffee Systems Page 7 The built in bean counter measures relative usage of its Grind n Brew machine by totaling the amount of seconds the augers have fed beans into the grinder This number directly correlates to the amount of beans used by the machine Depending on model the bean counter is either always shown or hidden to the user The
19. ctrical Hook up and Start up Procedure All Models IMPORTANT Do not plug the unit in yet IMPORTANT This equipment must be installed in compliance with applicable Federal State and or Local electrical codes having jurisdiction Do not use extension cords Make sure that the outlet the brewer plugs into is grounded IMPORTANT Make sure that the Main Power Switch in the back of the unit is in the Off position before plugging in the brewer IMPORTANT Domestic Q models at 208 230V must have a 4 wire electrical connection The circuit must have 2 hots 1 ground and 1 neutral wire Failure to install with a 4 wire connection will void the manufacturer s warranty 208 230 Volt Grind n Brew units require a 20 Amp circuit 1 Plug the brewer into an electrical outlet or run power to unit for hardwire applications 2 Make sure the brew basket is inserted in the brew rails 3 Reach to the back of the brewer and press the white Main Power Switch to the On position The front control lights will go on and water will enter the brewer The tank will fill in 2 3 minutes from the moment the Main Power Switch is turned on 4 Once the tank is full it will take 10 15 minutes to heat the water to the brewing temperature Cut that time in half for the 230V Q models Once the Ready light is lit you are ready to brew Operating the Touchpad Refer to Figure B 1 To select the appropriate bean hopper press the hopper left button until the
20. desired indicator arrow is illuminated NOTE This step only applies to dual bean hoppers 2 To select a portion size press the center of the Portion Size middle button until the half pot or full pot symbol depending on your need is illuminated 3 The Mode right button allows you to select either the Brew Only Grind Only or Grind and Brew feature a To grind only press the center of the Mode right button until the grinder symbol is illuminated b To brew only press the center of the Mode right button until the coffee cup symbol is illuminated C To grind and brew press the Mode right button until both symbols are illuminated together Bean Selector Half or Full Pot Grind only Dual Bean Models Only Brew only Grind and Brew Option Figure B Single Bean Model Dual Bean Model IMPORTANT Brewers are factory set for throw weight and water portion Please check that installation is correct before making adjustment No adjustments should be necessary for normal installation Page 6 Grind n Brew Coffee Systems Brewing IMPORTANT Brewers are factory set for the correct grind and brew times for average situations You should not need to make adjustments in the field Make sure that a new paper filter is in the brew basket and the brew basket is in place in the brewer Place beans in the hopper Choose to Grind and Brew Press the far right touchpad so Grind and Brew lights are lit
21. e brewing is selected the unit will brew the number of pulses identified by the Pulse Brew Pulses setting Each pulse is identical It will begin by dumping water for the Pulse Brew Pour Time and then wait for the Pulse Brew Delay Time This will repeat until all pulses are finished Once the pulses are complete the unit will pour water for the remaining Brew Time Brew Time is the total amount of time water is poured over the coffee grinds Pulse Brew Pour Times are included in this total Pulse Brew Delay Times are not included The cycle will always stop pouring once the Brew Time is met regardless of whether this happens in the middle of pulse brewing Drip Time is half of the Brew Time However the Drip Time will never be greater than 1 30 Page 8 Grind n Brew Coffee Systems User Menu The User Menu is accessed by pressing the SET key on the display board Navigation is accomplished by pressing the UP DOWN and SET keys Feedback to the user is shown by the 3 digit numerical display The User Menu exits after a 1 minute timeout or all modes are stepped through This menu is disabled by the User Lockout Jumper Brew Settings Brew Cycle Selection There are four independent settings for brew cycles Regular Full Brew Regular Half Brew Decaf Full Brew and Decaf Half Brew The User Menu adjusts settings for the brew cycle selected by the keypad For instance if you want to change settings for Decaf Half brew then set the keypad
22. ficient current due to overloaded line Plug unit directly into outlet Do not use extension cord Designate single line for unit Do not use multi outlet box Basket Out light flashing Display board displays 1 Water fill valve on too long Water supply turned off Clean or replace water fill valve Turn water supply on Basket Out light flashing Display board displays ER2 Problem with Thermistor Replace if defective Basket Out light flashing Display board displays ER3 Heater Relay failed Contactor Failed Heater Failed open Hi Temp failed Control Board output failed Replace defective component Water not hot enough Thermistor not set high enough Adjust potentiometer Water boiling or steaming Thermistor set too high Defective Thermistor Adjust potentiometer Replace Thermistor Start switch not working Basket Out light illuminated Brew basket out of place Replace basket No lights are on Including Warmer light No power to brewer Power switch turned Off Turn power on Turn switch on No touch pad lights other lights o k Too much or not enough water in decanter Touch pad disconnected Water time adjustment Reconnect touch pad Readjust Spray head dripping Lime build up in dump valve Delime unit Hot water spigot dripping Faulty seal Replace seal Hot water spigot not dispens ing D
23. n Brew Coffee Systems Page 13 Shear Plate Replacement Refer to Figure Tools Required 2 Phillips screwdriver large flat blade screwdriver 1 Unplug the machine 2 Remove the front panel Shut off the bean flow to the grinder Single bean units require you to pull the bean shut off valve forward Dual bean units require you to push the bean shut off valve back into the slots in the hopper 3 Remove the hopper cradle There are 5 screws 2 in front and 3 across the back holding the hopper cradle in place 4 Remove the spray head First remove the spray deflector by spinning it clockwise Second pull the spray nozzle away from the mounting sheet 5 Remove the grind cap by loosening the 2 screws and rotating the grind cap away from the screws 6 Pull out the revolving burr and feedworm assembly The sweeps on the revolving burr and feedworm assembly The sweeps on the revolving burr must line up with the cut outs on the grind head 7 Remove the shear cap and broken shear plate 8 Slide the rotating burr onto the motor shaft aligning up the sweeps with the cutouts on the grind head Rotate the burr so that the burr is held back into the burr pocket by the sweeps on the grind head lip Slide the drive coupler into place Rotate the slot on the drive coupler with the feedworm Insert a new shear plate 9 Reassemble the remaining components in reverse order of disassembly Figure E Page 14 Grind n Brew Coffee
24. ot Grind n Brews Setting Approx Setting Approx Setting Approx Setting Approx Single Bean yield Dual Bean yield Single Bean yield Dual Bean yield Single Left Full Pot 4 2 sec 2 oz 5 7 sec 2 oz Single Left Full Pot 4 5 sec 2 3 OZ 6 2 sec 2 3 OZ Right Full Pot 5 7 sec 2 oz Right Full Pot 6 2 sec 2 3 oz Single Left Half Pot 2 4 sec 125 oz 3 0 sec 1 25 oz Single Left Half Pot 2 7 sec 14 oz 3 7 sec 1 4 oz Right Full Pot 3 0 sec 1 25 oz Right Full Pot 3 7 sec 1 4 oz Full Pot 112 125 sec 62 fl oz 112 125 sec 62 fl oz Full Pot 140 153 sec 72 fl oz 140 153 sec 72 fl oz Half Pot 56 63 sec 31 fl oz 56 63 sec 31102 Half Pot 70 77 sec 36 fl oz 70 77 sec 36 fl oz Increase of 1 sec to timer setting equates to an increase in fluid volume by 1 2 oz Decrease of 1 sec to timer setting equates to a decrease in fluid volume by 1 2 oz Setting the Grind Refer to Figure C Tools Required 2 Phillips screwdriver 7 8 box wrench large flat blade screwdriver 1 Remove front decal panel by removing screw on underside of panel and 2 screws on both sides of panel 2 Loosen adjusting screw lock nut by turning counter clockwise 3 Turn slotted adjusting screw clockwise to make the grind coarser or counter clockwise to make the grind finer Generally a 1 8 to 1 4 turn will provide the desired adjustment 4 After adjustment has been made re tighten the adjusting screw
25. rain tube limed up Defective valve seat Delime tank and drain tube Replace seat Warmer Failure Loss of power Defective warmer switch or warmer heater Check power source Perform continuity test Replace defec tive component Auger motor water solenoid shutter not working Bus fuse on controller board is blown Replace 5 Amp bus fuse Basket Out or Brew Cycle indicators will not light up Polarity reversed LED burned out Connect black wire to terminal of LED Replace LED If you still need help call our Technical Service Department at 800 695 4500 USA amp Canada only or 502 425 4776 Monday through Friday 8 00 AM 8 00 PM Eastern Standard Time or an authorized service center in your area Please have the model and serial number ready so that accurate information can be given Prior authorization must be obtained from Grindmaster Corporation s Technical Services Department for all warranty claims Page 16 Grind n Brew Coffee Systems Exploded View Grind n Brew Assembly GRIND N BREW ASSEMBLY AIN WIRING POWER SUPPLY WIRING HARNESS SEE WATER TANK ASSEMBLY 6 1 SEE GRINDHEAD ASSEMBLY MOUNTIN H ASSEMBLY SEE BASKET ARM ASSEMBLY SEE WARMER ASSEMBLY 4 20 SS 1 41 41 41 44 41 4 31 oon NUT ESNA 1 CARRIAGE BOLT 1 4 20 X 1 4 BASE ASSEMBLY LEG
26. side from front on Check outlet with lamp or radio to verify outlet has power Ensure basket is in position Reset circuit breaker located on back of unit by pushing the reset button in until you hear a click Remove basket replace filter reinstall Grinder runs or hums but no coffee is dispensed Shear disc is broken Obstruction in opening of auger assembly on dual bean units Obstruction in opening to grinding chamber Slide valve is bending Blown fuse on controller board Dual bean only Replace shear disc See Shear Disc Replacement section Remove hopper and clear obstruction Remove hopper and clean obstruction Check for free operation of slide valve Adjust solenoid mount or slide valve mount as required Make sure white slide valve gasket is not touching moving parts Check for blown fuse and replace with 5 Amp fuse Quantity of coffee dispensed each throw is not the same Defective timer in controller Slide valve is binding Check the length of time grinder runs with watch Remove upper assembly and clean obstruction Check for free operation of slide valve Adjust solenoid mount or slide valve mount as required Make sure white slide valve gasket is not touching moving parts Grind n Brew Coffee Systems Page 15 Troubleshooting Guide cont Problem Circuit breaker continuously trips Possible Cause Insufficient current due to use of extension cord Insuf
27. t key Size Button 10 Grind Brew Button 8 Down Button 0 Up Button 2 Start Switch 16 Basket Out Switch 17 Select Button advances Factory Test to Step 11 11 Show Output Display scrolls outPut Output Test Mode 12 Output Test Turns on each relay separately Displays Scroll through relay outputs with the UP and DOWN keys Outputs are as follows 001 Fill Valve O02 Brew Valve O03 Grind Shutter 004 Left Auger Motor O05 Right Auger Motor O06 not used O07 Heater O08 Grinder Motor O09 Basket Out Light O10 Ready Light Grind n Brew Coffee Systems Page 11 Water System Errors There are three system errors that can be detected by the microprocessor These errors are 1 Water Fill Error Er1 the water full detection has failed and the fill valve has been on for at least 5 minutes 2 Thermistor Error Er2 the Thermistor is detected either open shorted OR the water is boiling 3 Heater Error Er3 the heater has been on for 3 minutes but no rise in water temperature was detected If any of these errors are detected the unit will shut off all water fill and heat related functions Brewing is disabled but grinding is still allowed The display will show the error when the unit is idle To clear any error the user can hold in the UP key for 5 seconds reset power to the unit or enter field test mode Timer Settings A standard 64 oz bottle Grind n Brew All Airp
28. the cycle shown on the keypad The keypad cannot be modified while setting the brew volume This feature is disabled by the User Lockout Jumper System Restore Feature This function will restore a Grind n Brew unit to its original factory settings To activate system restore power on the unit while holding in the DOWN button Continue holding the DOWN button and the display will scroll rEStorE to indicate that a system restore is about to happen If the DOWN button is released at this point the restore is cancelled If the button hold is continued the display will scroll donE to show completion of a system restore Upon a successful restore the original factory settings will override all changes The bean counter is not affected 10 Grind n Brew Coffee Systems Factory Field Test Menu This menu is intended to check product functionality both at the end of the factory line and in the field This mode is entered by pressing and holding the DOWN key on the display board and Full Half key on the keypad for 10 seconds Once the menu is entered the unit will start with an LED test that lights all LEDs and segments on the display Navigation is done just like the User Menu Refer to the table below for operation Field Test Mode exits after stepping through all modes only there is not a timeout Function Operation Description O where 2 digit output num
29. to the Decaf Hopper and Half Brew Size before entering the User Menu The keypad settings cannot be changed while the User Menu is displayed User Menu Navigation Advancing through the menu is done by pressing the SET Key Each parameter is adjusted by pressing the UP and DOWN keys Pressing and holding the UP and DOWN keys will quickly scroll through settings The table below shows how to step through this menu Step Setting Display Adjustments 1 Temperature Scale between Displays the current F or C F or C selection Factory default is F 2 Water Temperature Displays the current 170 to 205 F setpoint in F or C selection Factory default is 77 to 96 C 195 in F or 91 in C 3 Show Auger Time At None the amount of coffee beans fed into the grinder 4 Set Auger Time Displays the current 0 1 to 45 0 seconds the amount of coffee beans fed selection depending on Brew into the grinder Cycle 5 Show Brew Time Total amount of pour time for the brew cycle 6 Set Brew Time Displays the current 0 01 to 6 00 in minutes sec Total amount of pour time for selection depending on Brew onds the brew cycle Cycle 7 Show Pulse Brew P b None 8 Pulse Brew Pulse Number Displays the current OFF to 10 sets the number of pulses in selection depending on Brew the brew cycle Cycle
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