Grindmaster Brew-11, Brew-10H, Brew-10Q, Brew-10HQ, Brew-11H Operation And Instruction Manual
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Table of Contents
Warning Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Warning Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Water Hook-up . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Electrical Hook-up & Start-up Procedure . . . . . . . .5
Operating the Touchpad . . . . . . . . . . . . . . . . . . . . .5
Brewing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Setting Throw Weights and Water Portion . . . . . . .6
Timer Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Setting the Grind . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Shear Plate Replacement . . . . . . . . . . . . . . . . . . . .8
Water Solenoid Valve Replacement . . . . . . . . . . . .8
Control Board Settings . . . . . . . . . . . . . . . . . . . . . .9
Troubleshooting Guide . . . . . . . . . . . . . . . . . . .10-11
Exploded Views . . . . . . . . . . . . . . . . . . . . . . . .12-16
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . .17
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
0505 Form # BW-350-11
Part #70661
Grind’n Brew Coffee Systems™
Operation and Instruction Manual
for
Models: -
11, -21, -10, -20 including H, HQ versions
TABLE OF CONTENTS
Prior authorization must be obtained from
Grindmaster Corporation for all
warranty claims.
Model Grind’n Brew-10
Model Grind’n Brew-20H
Model Grind’n Brew-21
Model Grind’n Brew-11H
Warning Labels
Page 2 Grind’n Brew Coffee Systems™
! WARNING:
USE ONLY ON A CIRCUIT THAT IS PROPERLY PROTECTED AND CAPABLE OF THE
RATED LOAD.
! WARNING:
ELECTRONICALLY GROUND THE CHASSIS.
! WARNING:
DO NOT DEFORM PLUG OR CORD.
! WARNING:
FOLLOW NATIONAL AND LOCAL 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 UNPLUG UNIT FROM POWER SUPPLY BEFORE SERVICING.
x
x
x
x
x
x
x
x
1810
1810
208
3660
1710
1710
2674 3560 1810 1810 2749 3660
120
120
208/240 120 120 208/240 208/240208/240
1710
1710
2674 3560 1810 1810 2749 3660
120
120
208/240 120 120 208/240 208/240208/240
Page 3 Grind’n Brew Coffee Systems™
Technical Data - Single Bean Domestic Models
Technical Data - Dual Bean Domestic Models
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 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 underneath 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 fitting 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 4
Electrical 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.
Page 5 Grind’n Brew Coffee Systems™
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.
Operating the Touchpad (Refer to Figure B)
1. To select the appropriate bean hopper, press the hopper button until the 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 button until the half pot or full pot symbol (depending
on your need) is illuminated.
3. The Mode 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 button until the grinder symbol is illuminated.
b) To brew only, press the center of the Mode button until the coffee cup symbol is illuminated.
c) To grind and brew, press the Mode button until both symbols are illuminated together.
Figure B
(Dual Bean Model)
(Single Bean Model)
Half or Full PotBean Selector
(Dual Bean Models Only)
Grind only
Brew only
Grind and Brew Option
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.
Figure C
Setting Throw Weights and Water Portion (Refer to Figure C)
Tools Required: #2 Phillips screwdriver
1. Remove lower front access panel to expose digital timer. Refer to chart to
determine timer setting for the amount of coffee/water you wish to dispense.
2. Use the Select button to toggle to the setting available on your unit.
3. Use the up and down buttons to make your adjustments to the settings, then
press the Select button again to store your new settings. The display will flash
to indicate your settings have been stored. Scroll through the settings to confirm
that the timer setting gives the desired dispense volume.
a.) Brew a pot to confirm that the timer setting produces the desired
dispense volume.
b.) Record your new timer values on the customer settings chart
located on the time face.
4. After a few seconds, the display will shut itself off. The access panel may
be re-installed.
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.
Grind’n Brew Coffee Systems™ Page 6
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.
1. Make sure that a new paper filter is in the brew basket and the brew basket is in place in the brewer.
2. Place beans in the hopper.
3. Choose to “Grind and Brew”. Press the far right touchpad so “Grind and Brew” lights are lit.
4. Choose the Portion Size. Press the middle touchpad until desired volume is lit.
5. 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.
6. 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 automatical-
ly 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.
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 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 new coffee filter.
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