Grindmaster AMERICAN METAL WARE 87710 Installation And Operation Manual Download Page 23 | Manualshive

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American Metal Ware 87710E Coffee Urn

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Summary of Contents for AMERICAN METAL WARE 87710

Page 1: ...800 568 5715 technical service only FAX 502 425 4664 www grindmaster com X TABLE OF CONTENTS General Description 3 Roughing In Drawing 4 Installation 5 Spray Over Time Volume Rate 6 How To Brew 7 Thermostat Adjustments Timer 8 Care and Cleaning 9 Explanation of Agitation System 10 Operation Malfunction and Service 11 Dual Lever Control 12 Troubleshooting Level Control 14 Service Troubleshooting Ag...

Page 2: ...ter always at the desired temperature Measurement of water quantity sprayed over coffee is by push button start electric reset timer timing a constant water flow rate to the spray nozzle Hot water from the water compartment is pumped to the spray nozzle controlled by the reset timer Automatic refill maintains water level in water compartment Control system components are enclosed in stainless stee...

Page 3: ...Page 4 American Metal Ware 87710E Coffee Urn ...

Page 4: ... the housing on the left end See drawing as required It is recommended that a fused disconnect switch be installed near urn The urn body must be grounded either through metallic conduit or else by means of ground wire An experienced electrician should be respon sible for the installation of the urn and its associated supply line NOTE Neutral wire required on all single phase and on 208 volt 3 phas...

Page 5: ...s more or less than desired reset timer Longer time more sprayover shorter time less sprayover Each 1 4 minute increase or decrease adds or subtracts about 1 4 gallon to sprayover total Note that setting of sprayover bypass valve on sprayarm affects amount of sprayover Further adjustment of sprayover volume can be made using the internal bypass valve located in the side pump housing Screwdriver ad...

Page 6: ...al mixing can be performed at later time by pressing manual air agitation push button Where urn is not equipped with air agitation draw one gallon for each three gallons of finished brew from coffee faucet and pour over top into coffee liner The coffee is ready to serve Hold coffee at 185O 190O F or HOLD setting on thermostat knob Brewed coffee can be held at this temperature for up to one hour wi...

Page 7: ...st be restarted by pushing the START button Spray Rinse Of Liner To rinse the liner after brewing coffee swing the spray arm over the desired liner and push START button Allow hot water to spray from the spray arm for approximately 30 to 60 seconds and then push STOP button and drain the liner If the water temperature is below the HI end of the BREW zone on the thermometer dial with the knob on BR...

Page 8: ...rub the faucet then rinse it thoroughly with hot water Place a gallon or more of fresh water in the urn until next use Remove cover and clean Replace cover and leave partly open ALWAYS REMEMBER TO EMPTY AND RINSE THE URN WITH HOT WATER BEFORE USING AGAIN Be sure that the outer jacket is full of water Turn on the heat and fill the urn liner 3 4 full of water use only urn cleaning compounds followin...

Page 9: ...ns with delayed air agitation Option 43D have a two minute delay after the end of the brew cycle before the 30 second agitation cycle starts for improved mixing This delayed program is provided by a separate delay solid state relay Whenever power to the urn has been off such as upon installation the automatic agitation program will begin as soon as the power is turned on Otherwise it operates only...

Page 10: ... at heater is O K check for broken or loose wire Water must be showing in center gauge glass 2 if Opt 39 equipped Check heater for an open circuit with ohmmeter or continuity tester If necessary replace heater It is necessary to remove coffee liner to replace electric heater Service Checks and Cures Set knob on BREW and remove knob by pulling outward Using small screwdriver in center of shaft turn...

Page 11: ... until more water is added A device called a DUAL LEVEL CONTROL keeps the tank filled with water and turns off the heat when water is low by simultaneously monitoring two different water levels Components 1 Dual Level Control switches power to both the thermostat and water inlet solenoid valve by sensing changes in water level 2 Electrode Assembly consists of a high short and a low extra long sens...

Page 12: ... Ware 87710E Coffee Urn Page 13 Fill Solenoid Valve Thermostat Thermostat Thermostat Thermostat ON OFF ON ON OFF ON ON ON Fill Solenoid Valve Fill Solenoid Valve Fill Solenoid Valve 2 Description and Operation of Dual Level Control System continued B 3 Quick Service Check of Dual Level Control System 1 All wire secure and properly connected 2 Clean the electrodes Lime mineral scale build up can in...

Page 13: ...er switch if provided is on Make sure all water supply line valves are open Visual Water entering tank continuously and usually slowly Visual Jumper from HI terminal to metal enclosure stops fill Jumper for C terminal next to XL to metal enclosure stops fill Visual Jumper from HI to C does not stop fill Nothing operates on machine Crack fitting at water inlet for pressure check 1 Fill solenoid val...

Page 14: ...rainer and not after Check for 120V AC across H and N ter minals Disassemble Jumper from FILL ter minal to H terminal does not start fill Tank fills with electrode wire disconnected from HI terminal Tank does not fill with electrode wire disconnected from HI terminal Tank fills with electrode wire disconnected from HI terminal Visual Check C and HI probe terminals as well as FILL Also check neutra...

Page 15: ...at cutoff and tank fill Heat comes on with no probe wires HI XL C connected 1 Thermostat off 2 Thermostat inopera tive or out of calibration 3 Power relay or con tactor inoperative 4 Low electrode faulty or covered with lime scale 5 Dual Level Control faulty 1 Thermostat and fill valve connected to wrong terminals on Dual Level Control 2 Electrode s shorting to ground 3 Dual Level Control faulty E...

Page 16: ...agitation switch Where automatic agitation is built into timer and manual switch checks okay timer is defective and should be replaced Where automatic agitation is a separate solid state agitation relay and manual switch checks okay the relay is defective and should be replaced If there is a constant low air pump output the solid state timer or relay is defective and should be replaced IF NO AIR E...

Page 17: ...gh all valves can be operated in any position by mounting the valve upright there is less chance of malfunction caused by the collection of foreign material The solenoid coil can be rotated 360O for ease of wiring If possible do not reduce the length of the solenoid coil wire leads so that if it becomes necessary to remove coil at a later date for valve cleanout etc wire leads will not have to be ...

Page 18: ... should be free of corrosion If any appear damaged replace them with a parts kit which contains all moving parts necessary to rebuild valve to an as new condition Inspect enclosing tube assembly for wear exterior dents or other conditions which would impair free movement of the poppet and or plunger assembly Its interior should be clean and free from any obstructions Be especially critical of its ...

Page 19: ...Page 20 American Metal Ware 87710E Coffee Urn 093 011 ...

Page 20: ...American Metal Ware 87710E Coffee Urn Page 21 ...

Page 21: ...cet 13 Leg 14 Shank with Wing Coupling Nut 15 Electric Immersion Water Heater 16 Thermometer 17 Circuit Breaker 18 Manual Agitation Switch 19 Fill Solenoid Valve 20 Sprayover Pump 21 Water Pressure Regulator 22 Heater Contactor 23 Liquid Level Control Dual 24 Power Input Terminal Block 25 Solid State Relay Automatic Air Agitation 26 Water Strainer 27 Start Push Button 28 Stop Push Button 29 Refill...

Page 22: ...stat Opt 47 504001 Thermostat Heater Circuit 533 012 Sprayover Pump 533 004 Sprayover Pump Complete Assembly 533 013 Pump Repair Kit 512012 Sprayover Pump Silicone Tubing 5 8 O D x 3 8 I D 524006 Pinch Clamp for 5 8 O D Tubing 712 017 Electrode Assembly 6 10 Gallon Pump Urn 508004 Dual Air Pump 512011 Silicone Tubing 1 4 O D x 1 8 I D for Air Agitation 515001 Manual Agitation Push Button 712 050 S...

Page 23: ...Page 24 American Metal Ware 87710E Coffee Urn ...

Page 24: ...American Metal Ware 87710E Coffee Urn Page 25 ...

Page 25: ...Page 26 American Metal Ware 87710E Coffe Urn ...

Page 26: ...Machines Crathco Hot Beverage Dispensers Crathco Cold and Frozen Beverage Dispensers American Metal Ware Coffee and Tea Systems Tel 502 425 4776 Fax 502 425 4664 1 800 695 4500 P O Box 35020 Louisville KY 40232 USA www grindmaster com email info grindmaster com ...

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