Grindmaster AT-2W/AT-2WE User's Manual
Contents
1. ADJUSTMENT Disconnect power to brewer Remove lid and pour in basin Loosen nuts for brew rails Fit basket in place Tighten nuts and check basket fit UVPRPRWN _ cc Saa Auto Series Brewer Manual Page 5 SPARE PARTS LIST temno panno _____ peseniion emne Pate Deserto 5 70818 Element Heating 1400W 120V 37 70341 Elbow Silicone 90 deg en O CI pa CL ooo 73222 Element Heating 17600 1201 fros Pipe Adapter e rosi niet Tube Assomby 40 rst fer Role av 7 rate cover Tank WiBracket tremost_____ 78261 rmerReeg 3v 10 05826 Tubing 3 8 ID x 5 8 OD Silicone 44 71529 Wire Hinge Pour Over Lid 11 73033 45 73008 Elbow Brass 1 8 NPT 3 8 Barb Nut Slotted Hex SS size M20x1 5 17 73036 Thermostat Regulating 73233 Valve Inlet 230V 50 60Hz f00s23 T Stat 1 2 Manual Reset 230V Models _ 52 15192 Panelcenerss AT AP ATAPE_ 73057 Gasket Tank O Ring 73029 Base Cover Panel AT 2W Thermostat Clip Lock 73217 1 Decal Main Front AT 2W 73217 Decal Main Front W Switch Power AT 2W 73031 Panel Warmer Top AT 2W Leg Support Base Welded 100524 Bracket Hi Limit Manual Reset 230V Models 73213 25 73024 Base Cover Panel AT AP AT AC 73001 Bracket Warmer 13029 Heater Warmer 120V 100W A535 028 Heater Warmer 220V 100W 73004 Top Cover SS AT 2W 73027 Airpot Stopper 27B 73182 Rail Brew LH Assembly 73249 Pressure Faucet 62436 Ready Light Gre2. immediately Part 71509 for warmer models only Located near warmer plates i Warmers and surfaces are hot Part 71582 Located on rear and top access panels x Disconnect power before servicing Part 70248 Located on front behind server A CAUTION ATTENTION AVISO DE PRECAUCION BASKET CONTENTS LE CONTENU DU PORTE FILTRE EL CONTENIDO DE LA VASIJA ARE HOT EST CHAUD CALIENTE ESTA REMOVE WITH CARE LE RETIRER AVEC SOIN REMUEVA CON CUIDADO LE NON RESPECT DE CES EL NO SEGUIR ESTAS CONSIGNES RISQUE INSTRUCCIONES PUEDE CAUBAR D ENTRAINER DES BLESSURES SERIOS ACCIDENTES FAILURE TO COMPLY RISKS INJURY CAUTION WARMERS AND SURFACES ARE HOT ATTENTION LES SURFACES EXT RIEURES ET LES ELEMENTS CHAUFFANTS SONT CHAUDS ADVERTENCIA PARRILLAS Y OTRAS SUPERFICIES 70248 ESTAN CALIENTES GRINDMASTER CORP Part 71949 or 71149 Located on brew basket CAUTION HOT LIQUID Hot liquid in brew basket could cause burns Remove with care Part 71949 Part 71149 Auto Series Brewer Manual Page 3 A WARNING Read and follow installation instructions before plugging or wiring in machine to electrical circuit Warranty will be void if unit is connected to any voltage other than that listed on the name plate FILL BREWER TANK WITH WATER BEFORE CONNECTION TO POWER SUPPLY WATER CONNECTION The following is required for water hook up 1 A quick disconnect water connection or enough coiled
3. G GRINDMASTER CORPORATION AUTO SERIES BREWERS Installation Operation and Service Manual TABLE OF CONTENTS Warning Liberia 3 Water Connection 4 Installation Instructions 4 Coffee Preparation Procedures 5 Brew Volume Adjustment 5 Brew Basket Rail Adjustment 5 Spare Parts List cri 6 KEE AT ENN AT ANNE MARE Carls nee Water Tank Assembly Drawing 7 AT 2W AT 2WE Drawing 8 AT AP AT APE Drawing 9 AT 3WR AT 3WRE Drawing 10 AT TC AT TCE Drawing iii 11 Troubleshooting Guide 12 Component Replacement Instructions 13 Prior authorization must be obtained from Grindmaster Corporation for all warranty claims Model AT 3WR AT 3WRE Model AT TC AT TCE Grindmaster Corporation 4003 Collins Lane Louisville Kentucky 40245 USA GRINDMASTER 502 425 4776 800 695 4500 USA and Canada only CORPORATION 800 568 5715 Technical Service only FAX 502 425 4664 www grindmaster com Grindmaster Corporation 2007 0307 Form BW 340 01 PRINTED IN THAILAND Part 73254 WARNING LABELS The following warning labels were on your dispenser when it was shipped from the factory They should remain on your dispenser in good readable condition at all times If one of your labels is missing or damaged order a replacement label
4. M EST 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 Service Department for all warranty claims Page 12 Auto Series Brewer Manual COMPONENT REPLACEMENT INSTRUCTIONS A WARNING Disconnect power before servicing Risk of electric shock These steps apply to replacement of TANK TANK HEATER and HI LIMIT or MAIN THERMOSTAT Remove brewer lid Disconnect electrical connectors from upper warmer plate if applicable Remove pour in basin assembly receiving pan Disconnect electrical terminals and hoses as needed Remove front two screws mounting the tank Lift tank and lid completely out of tank Remove two rear screws mounting tank to tank lid Reverse steps 1 6 to reassemble new tank assembly OL Ud 09 N Pa THERMOSTAT HI LIMIT Disconnect wires to hi limit thermostat Remove two screws and remove thermostat Check continuity of the new hi limit thermostat before installing Screw down new t stat and reconnect wires Make sure the hi limit thermostat is securely mounted and that all electrical connections are tight and isolated UE WN MAIN THERMOSTAT 1 Disconnect wires and remove tank and tank lid assembly 2 Remove two rear screws mounting tank to tank lid 3 Remove screws which secure thermostat to tank lid 4 Loosen thumb nut securing capillary bulb 5 Remove grommet from top of tank lid
5. ater has reached brewing temperature thermostat will click off heating noise will stop and green ready light will be on pour 1 decanter 60 0z 1 8L of water through pour in opening Machine is now ready to use 5 Pour 1 decanter of water through pour in opening to check for proper temperature setting with an accurate thermometer Take the temperature of this water at a point below the brew basket opening at the start of the brew cycle and when the decanter is half full Recommended temperature of the water is approximately 195 F 91 C 6 In higher altitude locations 5 000 feet 1 500m above sea level the thermostat may have to be adjusted lower to prevent boiling Page 4 Auto Series Brewer Manual COFFEE PREPARATION PROCEDURES Pour Over Mode 1 Place filter into brew basket 2 Put the proper amount of coffee into the filter 3 Slide the brew basket into holder 4 Place empty decanter on warmer located directly under the brew basket and turn corresponding warmer switch ON NOTE For airpots open airpot lid remove pump stem from airpot and place airpot opening directly under center hole in brew basket 5 Pour decanter of fresh water through pour in opening at top of brewer 6 Hot water will be delivered through the sprayhead This distributes the hot water evenly over the coffee bed within the brew basket The coffee will drain from brew basket into the container below 7 TURN OFF WARMER WHEN NOT IN USE Red light indica
6. by pressing up with thumb and pulling capillary bulb out through hole 6 Reverse steps 1 5 to reassemble new tank assembly TANK HEATING ELEMENT 1 Disconnect wires and remove tank and tank lid assembly 2 Remove two rear screws mounting tank to tank lid 3 Loosen thumb nut securing capillary bulb and remove bracket 4 Remove two brass nuts and remove element 5 Install new element and washers with nuts secured tightly 6 Inspect tank lid gasket and replace if necessary 7 Reverse steps 1 3 to reassemble WARMER ELEMENT 1 Remove retaining screws from warmer plate 2 Lift plate and disconnect leads 3 Remove nuts and washers holding retaining plate and warmer element to plate 4 Reverse steps 1 3 to reassemble Auto Series Brewer Manual Page 13 GRINDMASTER CORPORATION Grindmaster Coffee Grinders and Brewers e PrecisionBrew Brewing Systems e Espressimo Espresso Machines Crathco Hot Beverage Dispensers e Crathco Cold and Frozen Beverage Dispensers e AMW Coffee and Tea Systems Tel 502 425 4776 e Fax 502 425 4664 e 1 800 695 4500 USA Canada only P O Box 35020 e Louisville KY 40232 e USA Grindmaster Corporation 2007 www grindmaster com e email info grindmaster com 0307 Form BW 340 01 PRINTED IN USA Part 73254
7. en 120V 31 70445 Brew Switch 73058 Switch Warmer Lighted 230V 73059 switch Warmer Lighted 120V 20 21 22 23 24 25 26 i 27B i 28 29 30 31 Switch Power Optional 73218A Top Body Assemply AT 2W 73218A Top Body Assemply AT 3WR 57A 57B 58 To T 63 MIC 69 61237 Fitting Assembly 1 4MFL x 3 4Hs Brass Not shown 61530 Power Cord 120V 61453 Power Cord 230V Page 6 Auto Series Brewer Manual WATER TANK ASSEMBLY IN 7727 I _ I Page 7 Auto Series Brewer Manual AT 2W AT 2WE PART LIST Auto Series Brewer Manual Page 8 AT AP AT APE PART LIST Page 9 Auto Series Brewer Manual AT 3WR AT 3WRE PART LIST Auto Series Brewer Manual Page 10 AT TC AT TCE PART LIST Page 11 Auto Series Brewer Manual TROUBLESHOOTING GUIDE Problem Possible Source Check Solution No Hot Water 1 Tank heater 1 Check the voltage at the tank 1 A If correct voltage is present at the tank heater heater terminals Voltage should be terminals and water is not being heated replace tank 120V 230V for E models Check heater serial tag for proper voltage B If voltage is not present at tank heater terminals refer to step 2 C If incorrect voltage is present at tank heater terminals check voltage at outlet _ 2 Hi limit thermostat 2 Check the voltage between the 2 A If voltage is present on incoming terminal on the or main thermosta
8. t warmer terminals should 1 If voltage is present on terminals but warmer is be 120V 230V for E models not heating replace warmer 2 Warmer On Off switch 2 If voltage is not present on warmer 2 If switch does not make and break continuity terminals check continuity of switch when turned on and off replace switch 3 Bad harness 3 Check connections between harness 3 All connections should be tight and switch and between switch and warmer Overflowing 1 Receiving container 1 Operating instructions 1 Always start brew cycle with empty container not completely empty at start of brew cycle 2 Not siphoning properly 2 Refer to dripping step 1 2 Refer to dripping step 1 3 Adjust timer 3 Check valve on time with watch 3 Refer to Brew Volume Adjustment section Low Pot Level 1 Adjust timer 1 Check valve on time with watch 1 Refer to Brew Volume Adjustment section Excessively Long 1 Lime scale build up 1 Remove spray head deflector and check 1 Delime machine Brew Times nozzle Little or No Water 1 Lime scale build up Be sure water is turned on 1 Delime heat exchanger From Faucet 2 Clogged inlet valve 2 Replace or repair inlet valve If you still need help call an authorized dealer in your area or Grindmaster Corporation s Technical Service Department You can reach Technical Service at 502 425 4776 or 800 695 4500 USA and Canada only Monday Friday 8 00 AM 8 00 P
9. t white wire on the tank heater hi limit thermostat but not on the outgoing terminal terminal and the incoming terminal replace hi limit thermostat black wire on the hi limit B Check voltage between black and white wire on thermostat then the outgoing receptacle If voltage is not present check outlet or black wire terminal on the hi limit circuit breaker thermostat C If voltage is not present on incoming terminal of hi limit thermostat replace main thermostat Steaming or 1 Main thermostat 1 Thermostat contact stuck or out of 1 A Adjust thermostat to lower temperature setting Spitting Around calibration B Thermostat should be calibrated or replaced Funnel 2 High altitude 2 For altitude above 5 000 feet 1 500m Dripping 1 Not siphoning properly 1 Water should flow from sprayhead freely 1 A Clean sprayhead holes B Check tightness of sprayhead tube C Check brass elbow in tank for debris 2 Leaky fill valve 2 Turn off water supply to see if 2 Replace or repair inlet valve as needed dripping stops Dry Coffee 1 Filters 1 Are correct filters being used 1 Use correct filter Remaining on 2 Not siphoning properly 2 Refer to dripping step 1 2 Refer to dripping step 1 Brew Basket 3 Improper loading of 3 Filter and coffee in brew basket 3 Filter should be centered in brew basket and brew basket coffee bed should be level Warmer Station 1 Warmer defective 1 Voltage a
10. tes warmer is ON Not for airpot brewers 8 Before brewing next pot remove brew basket from brew rails and dump filter into waste basket COFFEE PREPARATION PROCEDURES Auto Mode 1 Place filter into brew basket 2 Put the proper amount of coffee into the filter 3 Slide the brew basket into holder 4 Place empty decanter on warmer located directly under the brew basket and turn corresponding warmer switch ON NOTE For airpots open airpot lid remove pump stem from airpot and place airpot opening directly under center hole in brew basket 5 Press Brew switch once then release 6 Valve will turn on approximately 1 minute and fill pour in basin 7 Hot water will be delivered through the sprayhead This distributes the hot water evenly over the coffee bed within the brew basket The coffee will drain from brew basket into the container below 8 TURN OFF WARMER WHEN NOT IN USE Red light indicates warmer is ON Not for airpot brewers 9 Before brewing next pot remove brew basket from brew rails and dump filter into waste basket 10 Do not press Brew switch more than once during brew cycle BREW VOLUME ADJUSTMENT 1 Disconnect power to brewer 2 Remove plug on upper left side of chassis 3 With a flat head screwdriver turn dial clockwise slightly to increase volume and counter clockwise to decrease volume 4 Reconnect power and run a brew cycle to check volume 5 Repeat steps 1 3 if necessary BREW BASKET RAIL
11. tubing so the machine can be moved for cleaning underneath required for NSF approved water hook up 2 A 1 4 male flare adapter is provided to be attached by the installer to the back of the machine for hook up to water supply 3 Installation to a water filter system is required to prevent lime and scale build up in the machine 4 Water pipe connections and fixtures directly connected to potable water supply shall be sized installed and maintained in accordance with Federal State and Local codes required for NSF approved water hook up 5 Equipment is to be installed with adequate backflow protection to comply with applicable Federal State and local codes required for NSF approved water hook up Minimum water pressure to the machine 30 psi 2 0 bar Maximum water pressure to the machine 80 psi 5 6 bar INSTALLATION INSTRUCTIONS 1 Place the decanter under brew basket raise top evaporation cover and pour three decanters of water through the top pour in opening Water should come through the brew basket as the third decanter of water drains out of the pour in basin 2 Brewer is shipped with thermostat turned on full clockwise position Plug brewer into a dedicated grounded 120V 15A circuit 230V 15A circuit for E models 3 Allow 10 15 minutes for water in tank to heat to brewing temperature Hot water may drip from brew basket on initial thermal expansion of water in the tank This will not occur thereafter 4 After w
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