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Mechanical Installation

NOTICE:

This brewer should be installed by a

knowledgeable and experienced commercial
equipment installer.

Brewer Contents
Your brewer package should include the following:
1 Grind’n Brew (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 adjustable 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" (10 cm) plastic legs (included)
at the bottom of the brewer. Lean the brewer
towards its side to expose screw holes underneath
for legs. Adjust the leg height to suit the size of
airpots you will use. 

NOTICE:

Adjust the feet to level the brewer. With

bubble level, check to see that the brewer is level on
countertop.

Water Hook-up (Refer to Figure A)

NOTICE:

This equipment must be installed in

compliance with applicable Federal, State and/or Local
plumbing codes having jurisdiction. This product
requires an approved back flow prevention water
device, such as a double check valve, to be installed
between the machine and the water supply. Incoming
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. (3.8 L) of water
into a pail. This will ensure 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.

Electrical Hook-up and Start-up Procedure (Refer
to Figure B)

NOTICE:

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:

Do not plug the unit in yet. Make

sure that the Main Power Switch in the back of
the unit is in the Off position before plugging in
the brewer.

1. Plug the brewer into an electrical outlet.
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. Once
the Ready light is lit, you are ready to brew.

4

Grindmaster

®

Grind’n Brew

Installation

CAUTION

Lifting hazard. Single person lift

could cause injury. It is recommended that moving or
lifting the unit be done by two people to avoid injury.

NEMA 5-15P

Figure B

Figure A

Summary of Contents for GnB 10H

Page 1: ... 24 Wiring Diagram 25 Thank you for purchasing this quality brewing system For your safety and the safety of others read all warnings and the operator manual before installing or using the product Properly instruct all operators Keep training records For future reference record serial number here Table of Contents Model GNB 20H 2016 Grindmaster Cecilware Printed in USA 0516 Form BW 354 03 Part 390...

Page 2: ...ge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children should be supervised to ensure that they do not play with the appliance Do not alter or deform the power cord or plug in any way Altering or deforming the plug may cause electrical shock damage unit and will void warranty To reduce risk of expolsion or fire do...

Page 3: ... 31 x 9 25 x 24 25 26 25 x 9 25 x 24 25 37 5 x 9 5 x 24 25 32 75 x 9 5 x 24 25 H x W x D 79 cm x 23 cm x 62 cm 67 cm x 23 cm x 62 cm 95 cm x 23 cm x 62 cm 83 cm x 23 cm x 62 cm Electrical 120V 1710W 15A 1 PH 120V 1810W 15A 1 PH 120V 1710W 15A 1 PH 120V 1810W 15A 1 PH Circuit NEMA 5 15R 5 15R 5 15R 5 15R No of Hoppers 1 1 2 2 Hopper Capacity 5 5 lbs 5 5 lbs 6 5 lbs 6 5 lbs Per Hopper 2 5 kg 2 5 kg ...

Page 4: ...dicated 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 3 8 L of water into a pail This will ensure 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 G...

Page 5: ...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 and the brewing cycle will begin 8 You will see the coffee bean level go down slightly You will hear the coff...

Page 6: ...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 cycle will always stop pouring once the Brew Time is met regardless of ...

Page 7: ...me Displays the current selection of on time Off to 2 00 minutes 9 Show Pre Infusion off Pre Infusion off 10 Set Pre Infusion off time Displays the current selection of off time 5 seconds to 1 minute 11 Show Pulse Brew P b None 12 Pulse Brew Pulse Number sets the number of pulses in the brew cycle Displays the current selection depending on Brew Cycle OFF to 10 13 Pulse Brew Pour Time sets the amo...

Page 8: ...ile setting the brew volume This feature is disabled by the User Lockout Jumper System Restore Feature This function will restore a Grind n Brew unit to its original factory settings To activate system restore power on the unit while holding in the DOWN button Continue holding the DOWN button and the display will scroll rEStorE to indicate that a system restore is about to happen If the DOWN butto...

Page 9: ... Digit 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 Analog Digital 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 Le...

Page 10: ... OR the water is boiling Er4 Heater Error 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...

Page 11: ...give an unpleasant taste to the first brews Warmers The warmer plate is easy to clean and will maintain its appearance 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 Coffee Grounds Outlet Using a clean dry cloth wipe area around spray deflector see below and coffee grounds o...

Page 12: ... 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 must line up with the cut outs on the grind head 7 Remove the shear cap and broken shear plate 8 Slide the rotating burr onto the motor shaft aligning up the sweeps with the cutouts on the grind head Rotate the burr so that the burr is h...

Page 13: ...e Use no more than 3 1 2 oz 28 gm of coffee Coffee ground too finely Coarsen grind Double batching You must dump old coffee and use fresh new filter for each brew Unpleasant taste Water tank or brew basket needs Clean sanitize de lime cleaning Refer to Regular Maintenance section Brewer will not brew Basket has not been changed Remove basket replace filter reinstall Grinder will not start when Mai...

Page 14: ...o outlet Do trips extension cord not use extension cord Insufficient current due to Designate single line for unit Do overloaded line not use multi outlet box Basket Out light flashing Water fill valve on too long Clean or replace water fill valve Display board displays Water supply turned off Turn water supply on ER1 Basket Out light flashing Problem with Thermistor Replace if defective Display b...

Page 15: ...rd before repairing or replacing any internal components of the unit Before any attempt to replace a component be sure to check all electrical connections for proper contact Only a qualified service technician should perform electrical and mechanical adjustments or repairs PROBLEM POSSIBLE CAUSE SOLUTION Hot water spigot not Drain tube limed up Delime tank and drain tube dispensing Defective valve...

Page 16: ...833257 7 5 7 1 6 7 0 1 32 5 367 5 8 7 5 5 03 3 67 5327 9 56 21 6 5327 5 0 6 1 5 7 75 6833257 25 32 5 6833 6 2 1 25 6 5 1 21 7 3 1216 9 5 50 5 3 7 9 56 21 6 50 5 3 7 6 50 5 66 0 1 287 6 5 6 5 31 75 66 6 5 3 7 7 6 5 31 75 66 6 5 3 7 7 6 5 31 75 66 1 25 6 5 1 21 6 5 3 31 66 6 5 3 31 66 6 5 3 7 7 1XW 66 6 5 3 31 06 66 187 1 21 6 6 5 31 75 66 6 5 31 75 66 1 25 6 5 1 21 6 5 3 7 7 6 5 3 1 187 36 66 187 3...

Page 17: ...Grind n Brew Grindmaster 17 Parts Diagram and List continued Top Panel Assembly 0 1 2 1 3 4 4 ...

Page 18: ...8 1 6 21 78 1 6 21 78 1 6 21 78 1 6 21 78 1 6 21 78 635 3 8 5 66 7 5 03 26 2 137 5 77 1 66 6 56 6833257 9 17 78 78 63 7 2 6 21 78 287 7 5200 7 803 9 9 0 17 7 1 9 7 67 7 7 03 0 7 352 7 50 6725 9 9 9 1 7 30 29 5 7 5 7 1 7 1 5 7 66 5 7 7 67 7 6 5 3 31 66 187 7 11501 66 6 5 3 7 7 187 0 1 7 5 5200 7 6 21 7 6 7 7 5 7 1 6 5 31 75 66 1 25 6 5 1 21 66 0 352 187 36 66 6 5 3 31 66 7 50 1 7 6 5 3 7 66 ...

Page 19: ...Grindmaster 19 1 287 6 5 7 0 12 3 57 180 5 HVFULSWLRQ 47 6 7 52 5 02817 50 5 3 7 6 5 3 7 7 3 7 50 5 678 7 5 50 5 9 78 1 7 6 5 1 95 6 7 5 7 50 5 187 36 66 78 1 7 6 5 1 Parts Diagram and List continued Warmer Assembly ...

Page 20: ...am and List continued Grinder Assembly Non Shutter 01 2345 6 3001 782 1 92345 6 2 1 782 1 92345 6 4 1 782 1 92345 6 01 4 1 782 1 92345 6 01 2 8 0 1 A B 5 5 6 024 A 2 1 1C 081 3 0 4 1 1C 081 3 0 4 2 8 5 0 4 260 00016 210 00284 210 00285 86355 ...

Page 21: ...Grind n Brew Grindmaster 21 Parts Diagram and List continued Single Bean Upper Assembly ...

Page 22: ... 8 1 02725 8 5 9 DPS UHHQ YGF DPS 5 YGF 63 5 1 21 6 872 3 57 7 21 35 1 8 1 233 5 1 8 1 3257 21 5 833 5 3257 21 5 2 5 6 7 3257 21 5 72 3 7 325715 95 1 8 1 5 8 5 6 7 5217 1 8 1 9 9 1 6 872 5 7 1 6 872 187 1 61 6 5 3 8 6 5 3 31 66 6 5 3 7 7 187 251 1 7 66 187 1 21 6 517 53 635 1 8 5 5 9 635 1 6 7 50 7 6 5 3 1 187 61 66 5 7 233 5 1 7 6 7 3 6 66 187 61 66 6 5 3 31 6 5 3 31 66 187 1 1 6 5 6 1 7 233 5 8 ...

Page 23: ...W 2XW 6ZLWFK RQWURO 3DQHO VVVHPEO 1 287 6 5 7 0 12 3 57 180 5 6 5 37 21 47 5 17 11 66 0 21752 5 29 5 17 5 1 352 5 0 RQWURO 1 5 3 XOFUXP DVNHW RXW VZLWFK 3 927 8 580 3 1 1 50 5 63 6 UDFNHW 1 FRQWUROOHU 3DQHO 1 LUSRW 6SODVK 6FUHZ 7 SH 3 66 0DJQHW 2 6 5 3 7 7 6 5 31 75 66 67 1 2 5956 02817 63 7 5 51 1 3 6FUHZ 66 61 3 86 1 2 ...

Page 24: ...A L U S N I Y L L U F 2 5 1 F O 1 T E E H S T O N L L A H S P R O C R E T S A M D N I R G E H T F O N O I T A M R O F N I L A I T N E D I F N O C D N A Y R A T E I R P O R P S N I A T N O C G N I W A R D S I H T T N E S N O C R U O T U O H T I W N O I T A N I M A X E R O F S E I T R A P E D I S T U O O T D E T T I M B U S R O D E N A O L D E I P O C D E C U D O R P E R E B N O M M O C Y B N W D L ...

Page 25: ...Grind n Brew Grindmaster 25 Wiring Diagram ...

Page 26: ...26 Grindmaster Grind n Brew ...

Page 27: ...Grind n Brew Grindmaster 27 ...

Page 28: ...ilware 4003 Collins Lane Louisville KY 40245 USA Phone 502 425 4776 Toll Free 800 695 4500 Fax 502 425 4664 Web gmcw com Email info gmcw com 2016 Grindmaster Cecilware Printed in USA 0516 Form BW 354 03 Part 390 00062 ...

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