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Page 12

Grind’n Brew

®

Coffee Systems

Figure C

Timer Settings

A standard 64 oz. bottle Grind’n Brew

All Airpot Grind’n Brews

• 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

Approx.

Setting

Approx.

Single Bean

yield

Dual Bean

yield

Single/Left Full Pot

4.2 sec.

2 oz.

5.7 sec.

2 oz.

Right Full Pot

-

-

5.7 sec.

2 oz.

Single/Left Half Pot

2.4 sec.

1.25 oz.

3.0 sec.

1.25 oz.

Right Full Pot

-

-

3.0 sec.

1.25 oz.

Full Pot 

112-125 sec.

62 fl oz.

112-125 sec.

62 fl oz.

Half Pot

56-63 sec.

31 fl oz.

56-63 sec.

31 fl oz.

Setting

Approx.

Setting

Approx.

Single Bean

yield

Dual Bean

yield

Single/Left Full Pot

4.5 sec.

2.3 oz.

6.2 sec.

2.3 oz.

Right Full Pot

-

-

6.2 sec.

2.3 oz.

Single/Left Half Pot

2.7 sec.

1.4 oz.

3.7 sec.

1.4 oz.

Right Full Pot

-

-

3.7 sec.

1.4 oz.

Full Pot 

140-153 sec.

72 fl oz.

140-153 sec.

72 fl oz.

Half Pot

70-77 sec.

36 fl oz.

70-77 sec.

36 fl oz.

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. 

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 lock nut.

5.

Visually inspect the grind adjustment with a small portion of coffee and
readjust if necessary.

6.

Reinstall the front decal panel.

Summary of Contents for 10H

Page 1: ...ting Guide 15 Exploded Views 17 Wiring Diagrams 22 Grindmaster Corporation 4003 Collins Lane Louisville KY 40245 USA 502 425 4776 800 695 4500 800 568 5715 Technical Service Only FAX 502 425 4664 www grindmaster com Grindmaster Corporation 1997 PRINTED IN USA Patents Pending 0307 Form BW 350 13 Part 70661 Grind n Brew Coffee Systems Operation and Instruction Manual for Models 11 21 10 20 including...

Page 2: ......

Page 3: ...AL ELECTRICAL CODES WARNING WATER CONNECTIONS SHALL COMPLY WITH THE PLUMBING CODE OF BOCA THE FOOD SERVICE SANITATION MANUAL OF THE FDA WARNING DO NOT USE NEAR COMBUSTIBLES WARNING FAILURE TO COMPLY RISKS PERSONAL INJURY DAMAGE TO EQUIPMENT FIRE OR SHOCK HAZARD WARNING READ THE ENTIRE OPERATING MANUAL INCLUDING THE LIMIT OF WARRANTY AND LIABILITY BEFORE BUYING OR USING THIS PRODUCT WARNING ALWAYS ...

Page 4: ... 3660 1710 1710 2674 3560 1810 1810 2749 3660 120 120 208 240 120 120 208 240 208 240 208 240 1710 1710 2674 3560 1810 1810 2749 3660 120 120 208 240 120 120 208 240 208 240 208 240 Technical Data Single Bean Domestic Models Technical Data Dual Bean Domestic Models ...

Page 5: ...t 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...

Page 6: ...he 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 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 n...

Page 7: ...t 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 After brewing a pot 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 tha...

Page 8: ...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 ...

Page 9: ...Setting Display Adjustments 1 Temperature Scale between F or C Displays the current selection Factory default is F F or C 2 Water Temperature setpoint in F or C Displays the current selection Factory default is 195 in F or 91 in C 170 to 205 F 77 to 96 C 3 Show Auger Time the amount of coffee beans fed into the grinder At None 4 Set Auger Time the amount of coffee beans fed into the grinder Displa...

Page 10: ... 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 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 un...

Page 11: ...t center 1 Always show bean count 0 Don t show bean count Lowest Digit right most 1 Grind n Brew Model 0 Grind Only Model 6 Display Water Temperature Show averaged A D reading of temperature Show the current temperature in F of the thermistor 7 Display Water Level 1 Show averaged A D reading of water level 1 If 500 water level full If 500 water level not full 8 Display Water Level 2 Show averaged ...

Page 12: ...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 di...

Page 13: ...ppearance 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 insi...

Page 14: ...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 th...

Page 15: ...tart button is pushed Main power switch turned off No power to outlet Basket out Circuit breaker has tripped Basket has not been changed Turn main power switch on located on back of unit left 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 R...

Page 16: ...ater 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 bask...

Page 17: ...Grind n Brew Coffee Systems Page 17 Exploded View Grind n Brew Assembly ...

Page 18: ...Page 18 Grind n Brew Coffee Systems Mounting Sheet Assembly Warmer Assembly Basket Arm Assembly ...

Page 19: ... 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 I D 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 SWIV...

Page 20: ...Page 20 Grind n Brew Coffee Systems Exploded View Hot Water Tank Assembly Export Units ...

Page 21: ...Grind n Brew Coffee Systems Page 21 Single Bean Upper Assembly Dual Bean Upper Assembly ...

Page 22: ...Page 22 Grind n Brew Coffee Systems Wiring Diagram 115 230V 60Hz ...

Page 23: ......

Page 24: ... Corporation 1997 PRINTED IN USA 0307 Form BW 350 13 Part 70661 Tel 502 425 4776 Fax 502 425 4664 1 800 695 4500 USA Canada only P O Box 35020 Louisville KY 40232 USA www grindmaster com email info grindmaster com ...

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