Grindmaster 67710E User's Manual
Contents
1. ACB AgOZ 2 12313 Nun HS3H3 MIYE 3337 OL 334409 SIXIN N31SAS NOU VLIDV N04 TVNN3LNI 703 3HVM NVOIM3AY 51001 LNOHLUA 7009 SI LYHL NOUYTNSNI 3I8VAONW3H NON SI320Y3 sSv19438l4 TYM vnd YALNNOD OL N3lSV4 OL STIOH UI SUAE M3NOS 1334 Q39NV4 S B D JHL NI ONINIVI 3H 334309 40 WO V NVHL 5531 SI N3HM 5 801V33dO OL STYNOIS 033201 0 4 51 83402 55322 YOLVIIGN 13411 SIONINOO WIMINI 2INO312313 WNY3LNI TW 535 ATIVNH31NI HOIHM 7041802 032804NI34 ALNG AAV3H 2 i o OF 031201 0 4 38 2 Y3NIT H2Y3 OL ONZE 2 SNOLLRB 4015 ONY LAVIS MIXA aauinb34 583114 ON 2 ATIVNYRINI 1 313 A34 1N3ON3d30NI 13x5vg Mid IN3NYWHdd 341501283 13315 SS3INIVIS 3I8VAOIGU NON 039 Metal Ware 67710E Coffee Urn Installation WARNING ELECTRIC SHOCK HAZARD INSTALLATION SHOULD BE PERFORMED BY QUALIFIED SERVICE PERSONNEL ONLY Initial Considerations Unpack the Urn Remove the cardboard carton from around the urn Be careful not to scratch the stainless steel with any tools Unwrap any plastic wrapped items Open both liner covers and remove materials inside the liners Remove the control enclosure to expose electric connections Select a sight for the urn The Urn2. must be placed on a sturdy leveled table The table must have a tray to collect liquid from the faucets To set up initially and adjust later the installer must have access to the side of the urn where the controls are located Be sure to allow for space in the sight selection Water and Electric The electric ratings are printed on the nameplate of the urn and on the rough in drawing The urn must be connected to a branch circuit with its own shut off A water line must be run to the connection location The urn has a 3 8 NPT water inlet as shown on the rough in drawing Use 3 8 OD copper tubing for the connection For especially long runs where pressure drop is likely to be a problem use larger tubing The water line should have a shut off valve near the urn The water pressure at the urn should be between 30 and 70 psig Softened water does not make good coffee For best results use cold tap water Cold water will require a recovery time between brews You may connect hot water if it is necessary to brew in both liners continuously Chlorine and lime in water are the biggest problems in the operation of coffee brewers Be sure the water is free of chlorine which will deteriorate the stainless steel Filters may be purchased to help control lime American Metal Ware s warranty does not cover water problems Place Urn Position the urn on the table in its operating position Level the urn front to back and left to right The height of
3. to adjust ANGE NOS CM Open the valve slightly for faster sprayover close Figure 7 Flow Valve for slower sprayover Turn the urn back on and wait for the water hot light to turn on Brew water into the liner for the standard 12 1 2 minutes Adjust the timer if it does not run the pump for the correct time Page 13 American Metal Ware 67710E Coffee Urn A zt adjust the cont The level in the liner should be one inch below the line where the liner ring attaches to the liner wall Re adjust until the level is correct Fill Rate Adjustment The fill rate depends on the water line pressure and the opening of the FAST FILL VALVE see figure 8 If the urn does not refill as fast as it uses water during a brew cycle you may adjust the fill rate If you adjust for maximum fill rate and the level still cannot keep up either the pressure is too low or the fill system may have clog See Troubleshooting Figure 8 Fill Rate Valve To Adjust the Fill Rate Remove the control access cover Locate the needle valve labeled FAST FILL VALVE Open the valve a few turns Brew water into both liners simultaneously Watch the FILLING indicator If the light cycles on and off the rate is fast enough If the FILLING light stays on the rate 15 too slow Re adjust American Metal Ware 67710E Coffee Urn Page 14 Cleaning Cleaning your coffee brewer will help the m
4. 01 V 3SYHd 33UH Ol 183 02 OL N OHS 3SYHd TIONIS 3u3dNY CNY SIUM 30 WANN ONY 3S5YHd 300A 803 3LY I3PYN 238 335 343H YMOd 123 09 LOND 304 300 UYYYdI YH SNAN INISNIJSKI 310703 ONY 341 drifid YOULNOD Bum 002 sum c fi orz ozl 61 902 071 Bum 1 04 BOAON 30018 NOULO3IONd Liu XDIY338 5350038 30VLL YIN 01 ONAYH SUON NO BSN 39 AVA BOLOYINOO 27094 Z Y ULON 3SYHd SINGO 2 10N 04 ANO TONS 2 TTET OL S354 LOH OML 1238809 1351 VLA Wd 803 TONG 804 0344 WULNOD 01 IY A DZI JYJH H3MOd 123 09 KINO BVAd JONS American Metal Ware 67710E Coffee Urn Page 17 Notes American Metal Ware 67710E Page 18 GRINDMASTER CORPORATION Grindmaster Coffee Grinders and Brewers Espressimo Espresso Machines e Crathco Hot Beverage Dispensers Crathco Cold and Frozen Beverage Dispensers American MetalWare 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 e email info grindmaster com
5. American Metal Ware Coffee Urn Installation Operation amp Service Manual For Model 67710 TABLE CONTENTS Warning Labels Introduction About the 67710E Coffee Urn General Description Features of This Model X Pre Installation Package Contents Rough In Drawing Installation Initial Considerations Electric Steam Special Features Adjustments Bypass Adjustment Thermostat Adjustment Timer Adjustment Flow Rate Adjustment Fill Rate Adjustment After completing installation and set up the equipment owner should keep this manual for future reference Each Day Semi Weekly Wiring Diagram Grindmaster Corporation 4003 Collins Lane Louisville Kentucky 40245 USA 502 425 4776 800 695 4500 USA and Canada only 800 568 5715 technical service only FAX 502 425 4664 www grindmaster com Grindmaster Corporation 1996 1104 Form AM 320 02 PRINTED IN USA WARNING ELECTRIC SHOCK HAZARD WARNING DANGEROUS ELECTRIC VOLTAGE IS PRESENT WITHIN THIS APPLIANCE TO REDUCE THE RISK OF INJURY OR DEATH DO NOT OPERATE UNLESS THE CONTROL ACCESS PANEL 15 SECURE INSTALLATION SERVICE AND ADJUSTMENTS SHOULD BE PERFORMED ONLY BY QUALIFIED SERVICE PERSONNEL CAUTION HOT LIQUID HAZARD CAUTION SCALDING HOT LIQUIDS ARE PRESENT WITHIN THIS APPLIANCE TO PREVENT BURNS TAKE CARE WHEN OPERATING CLEANING AND PERFORMING MAINTENANCE ON THIS MACHINE A
6. achine last longer produce better coffee and keep its attractive appearance Cleaning regularly does not take much time Follow these steps for daily and weekly cleaning Cleaning brushes may be purchased from American Metal Ware or your restaurant equipment dealer Do not use soap scouring powders or abrasive materials to clean your equipment These will damage the stainless steel finish After Each Use Empty and rinse brew basket Drain and rinse urn liner Add some hot water to liner and brush liner interior To add small amounts of hot water to liner close cover and press start and stop switches to control amount Rinse again and urn is ready for next brew Each Day Brush urn liner well rinse well Wipe exterior surfaces with a damp rag The stainless steel may be cleaned with stainless steel cleaner After the last use and cleaning fill brew water into the liners to help any coffee oils from staining the metal Semi Weekly Clean the liners with urn cleaner never use bleach or chlorine based products on stainless steel Fill the liner 3 4 with hot water Follow the cleaner s instructions and allow to stand in hot urn for 30 minutes Coffee brewer cleaners which have been used successfully DIP IT from Economics Laboratory White Plaines NY OXYLITE from Avril Inc Syndet Division Reading PA TEMP KLEEN from Caddy Corp of America Pitman NJ Scrub inside the liner with a long handle
7. d brush Clean the nut in the bottom of the liner Be sure the liner is empty Remove the bonnet or the cap and handle part of the coffee faucets Brush inside of the faucet body Clean the silicone faucet seal Also with the liners empty remove the coffee faucets from their shanks Brush clean the tube interior which leads to the center of the liners Page 15 American Metal Ware 67710E Coffee Urn 3008 AYUS Y0 2019712 INMY WOLVOKINI NI 334300 HOLVE ON 3835 00419 NUN E9009 Ti MOOMGHLMON ONORAYM OD 34VM WLIW NV IYINY N23 31vQ onl swosW3u Ydd 135 3NO STOMINOO YANIN NUN 834 13S S IOHLNOO Tid ONY 1V3H 315 40 OVA 021 16 American Metal Ware 67710E Coffee Urn AWO 4 JONE Z H 5 vid SINGAIT 2 10N 00 e E 10006 E MOOMGHLVOM 790 ONOMAYM OO 3uVA WLAN NYOIM3AY 9151 of 6 SLN3N313 ONUV3H HO LY SHOLOYINOO 7 4 803 310N 335 qun IY SWARA Zu ony by SiDIOVINOO 304 f YAI strana ONY 24 LON D YANYOISNVEL 9315 71809 06 ozy 17080 TOULNOD OL 610171 noui p z 301 HON I 2H09 0S v 11080
8. ee the Adjustment section for instructions on speeding the fill rate Press the STOP switch if you need to stop the brew The timer will reset when STOP is pressed so be sure the liner is empty before you press START again After the Brew is Finished When the brew cycle has automatically shut off you should have ten gallons of coffee The level will be higher in the liner if you brew with no grounds If the level is not correct see the Adjustment section Allow about two minutes for the grinds to stop dripping CAREFULLY open the liner cover Remove the brew basket dispose of the used grounds and rinse the basket Replace the basket on top of the liner and close the lid The lid may be locked again Monitor the level of coffee by checking the flashing light labeled COFFEE IN LINER WHEN LIT If this light is flashing the liner is almost empty Page 11 American Metal Ware 67710E Coffee Urn Adjustments WARNING ELECTRIC SHOCK HAZARD INSTALLATION SHOULD BE PERFORMED BY QUALIFIED SERVICE PERSONNEL ONLY Bypass Adjustment 7 ALI See figure 4 EB Each liner has an independent bypass which is adjustable The E Bypass valve controls the ratio of water sprayed over the EES grounds to the water poured directly into the liner bypassing the grounds re _ urn is shipped from the factory with the bypass open Figure 4 Bypass Valve 3 1 2 turns This means approximately 25 of the
9. merican Metal Ware 67710E Coffee Urn Page 2 Introduction Thank you for purchasing this American Metal Ware product American Metal Ware has been building beverage equipment since 1883 This product has been designed for the quality and cost conscious restaurant operator in mind Our metal craftsmen proudly build each product with great attention to detail This manual has been prepared to compliment your equipment Take a few minutes to become familiar with the equipment before you start operation Within you will find information on the set up operation and maintenance of the equipment This information will help you use this equipment to produce the best possible beverage product The installation and setup instructions will help get the equipment running quickly You will also learn the functions of all controls Follow the cleaning and maintenance instructions to ensure a long life for your equipment and to preserve its attractive appearance If this product requires service or adjustment see the Adjustment section of this manual This section will explain the safest and easiest procedures for finding and making adjustments A repair parts section will help you identify the parts you need Page 3 American Metal Ware 67710E Coffee Urn About the 67710E Coffee Urn General Description This coffee urn has been engineered to suit the special needs of the prison environment This section highlights the characteristics and special features
10. n be started and checked Leave the access cover open Turn on the water supply Turn on the electricity to the urn The urn will now begin to fill The heaters should still be off When the water level is above the heaters the contactor will close to turn on the heaters Check for leaks in the water connection and inside the control enclosure Assuming all is working correctly close the control enclosure and allow to finish filling An indicator light labeled FILLING is lit while the fill valve is open When the light turns off the urn is full The urn will take approximately 15 minutes to fill If cold water is used the heat up time is approximately 30 minutes depending on the electric ratings of the urn An indicator light labeled WATER HOT will turn on when the heaters have shut off Page 9 American Metal Ware 67710E Coffee Urn Operation Now that the urn has been installed and started up it is ready for operations This section describes the brew process from start to finish Before brewing the first batch of coffee follow the procedure outlined here to brew an initial batch of water only into each liner This will rinse the components and set the gaskets and seals Load the Coffee Remove the pad lock which secures the liner cover over the liner into which you want to brew Lift the cover to expose the brew basket Note that the brew basket has a mesh bottom so filter paper is not required If the
11. ner no gauge glass Automatic Refill and Low Water Heater Cutoff Stainless steel mesh coffee filter High Speed Brewing Brew in both liners simultaneously Maintenance All components are easily accessible in the side control enclosure Replace most components without draining the urn Durable easy to clean 304 stainless steel construction American Metal Ware 67710E Coffee Urn Page 4 Pre Installation Package Contents This coffee brewer should be packed in a box on a wooden skid Check to make sure the box contains the following parts 1 The Urn 2 Two stainless steel mesh brew baskets 3 Three pad locks and one set of three identical keys 4 This instruction manual 5 Two clamps for pump tubing in the control enclosure 6 Two sets of two keys to turn on brew controls The next page shows a rough in drawing number 094 004 Refer to this drawing for information required for installation The drawing shows the locations of the electric and water inlets and some important dimensions of the brewer Page 5 American Metal Ware 67710E Coffee Urn swej AjueJeM 3ueuniedeq sadas eoiuuoe eq uonezuouine pezuoujne ue Jo 153 wd 9 8 92 52 209 Jo 1x3 9 9 899 008 1e JNO je peeu jns s 81
12. of the product The urn is a large capacity high speed coffee brewing and holding unit The body is constructed of two walls of stainless steel with insulation between Inside is a large capacity water tank where the brew is heated Two ten gallon liners fit into that tank Each liner has its own controls which start and stop the brew process with the push of a button A pump draws water from the tank and sprays it over the grounds which are placed above the liners Faucets on the front of the urn allow the dispense of coffee from each liner and hot water from the tank A control automatically refills the tank as water is drawn off A thermostat regulates the temperature by switching electric heating elements inside the tank Features of This Model Safety and Security No parts removable by hand No breakable parts Minimization of screw fastened parts on exterior All remaining screws way e Lockable covers over control compartment and brewing area When locked there is no access to hot water or coffee except through faucet Security faucets with wrench tight metal bonnets and self closing handles Insulated body stays cooler Lock our brew controls Drain handle located inside control enclosure Flanged feet may be bolted to table Operation Fully automatic brew cycle with automatic air agitation Adjustable timer by pass sprayover rate and thermostat Sensors indicate coffee in li
13. re are used grounds in the basket dispose of them and rinse the basket Fill the brew basket with the proper amount of ground coffee to brew ten gallons Pour the coffee directly into the basket do not use filter paper See the following section for instructions on the amount and grind WATER HOT of coffee FILLING Check the liner The liner should be COFFEE IN LINER empty and clean before brewing a batch If the liner is not empty it BREW LOCK will overflow when brewing Place the brew basket over the liner BREW LIGHT and close the lid You may padlock the lid at this time to prevent START tampering Start the Brew Turn the brew lock key to ON for the liner you are brewing to Check the WATER HOT light to be sure the water is up to temperature If the light is off wait a few moments for the urn to finish heating Be certain to close the cover over the liner you wish to use Figure 3 Brew Controls Press the START switch for the liner you are brewing to American Metal Ware 67710E Coffee Urn Page 10 pump will run for 12 1 2 minutes to spray over the water required for 10 gallons of coffee The BREW light stays on while the pump is running As water in the tank is used it is refilled automatically The FILL light indicates that the fill valve is open The light should alternate on and off even when brewing to both sides If the FILL light stays on during the brew cycle s
14. t if needed Timer Adjustment See figure 6 Two timers control the brew cycle including the air agitation When a start switch is pressed the timer sends power to the pump through the normally open contact Also the brew light is turned on These stay on for the set amount of time After the time is up the air agitation turns on to stir the coffee Timer Adjust Figure 6 Brew Timer The time is set by turning an adjustment potentiometer see figure 6 This potentiometer is factory set to spray for 12 1 2 minutes To Adjust the Timer Turn off power to the urn Remove the control enclosure access cover Locate the timer you need to adjust Find the marked adjustment potentiometer on the front of the timer Insert a screwdriver and turn the potentiometer to the approximate time you need Restart the brewer and measure the time of a brew start button pressed to sprayover stop Re adjust the potentiometer to make fine corrections if needed Flow Rate Adjustment Spei Over See figure 7 Control Two valves one for each liner control the flow rate of waterg sas from the pump to the sprayover They have been factory set 10 provide proper rate for a twelve minute brew time Only adjust these if the rate has obviously come out of adjustment To Adjust the Rate Turn off all power to the urn Remove the control enclosure access cover Locate the valve to the liner you want
15. the feet is adjustable for this purpose Complete the Hook Up Water Hook Up The water connection is on the back of the urn s control enclosure see figure 1 Page 7 American Metal Ware 67710E Coffee Urn It is 3 8 Female connection See the rough in drawing for details on location You may wish to install a water line filter to inhibit lime deposits especially if your area has particularly hard water Lime which precipitates as the water is heated will eventually build up inside the urn Electric Hook Up Before starting any work be sure the Electric Inlet electric line has been turned off Check the nameplate on the urn for the elec tric ratings of the urn Awiring diagram is also provided inside the control 3 8 FPT enclosure and in this manual Use the Water appropriate circuit breaker and cord for Inlet the electric service that this urn that requires Secure the cord to the rear of the control enclosure with the appropriate cord grip bushing The hole for electric connection is located on the rear of the urn s control enclosure as shown in figure 1 and on the rough in drawing Figure 1 Service Hookup Locations Wire the cord to the terminal block and the ground connection shown in figure 2 Be sure the connection is secure and no strands touch adjacent wires Figure 2 Terminal Block American Metal Ware 67710E Coffee Urn Page 8 Initial Start Up Now that the brewer is connected it ca
16. water bypasses the coffee grounds See the next section on Brew Techniques about the effect of bypass on coffee If you desire more of the water to go through the coffee grounds close the valve Open the valve to allow more water to bypass the coffee Each liner s valve must be adjusted separately You may need to adjust the brew timer slightly if you adjust the bypass to maintain the correct volume Thermostat Adjustment See figure 5 The thermostat controls the temperature of the water in the tank by switching the heater contactor on and off A capillary tube monitors temperature near the heaters The thermostat is calibrated such that when the shaft is Adi turned all the the temperature is 200 degrees Screw Fahrenheit To change the water tank temperature e Turn off power to the urn e Remove the control enclosure access cover e Locate the thermostat shaft inside the control enclosure Turn the shaft full on Figure 5 Thermostat American Metal Ware 67710E Coffee Urn Page 12 Change the Water Tank Temperature cont Insert a miniature flat screwdriver into the center of the shaft Turn the screw slightly to make adjustments clockwise to increase the temperature counterclockwise to lower Turn the power back on and allow the temperature to equalize The water hot light turns on when the heaters are off Check the water temperature inside the tank Repeat adjustmen
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