bkon service manual draft 36 jjp

SERVICE MANUAL

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SAFETY

DANGER

WARNING

WARNING

CAUTION

DANGERIndicates potentially life-threatening danger or grave injury from electrocution.

WARNINGIndicates risk of injury.

CAUTIONIndicates risk of minor injury.

WARNINGIndicates risk of injury from Heat / Hot Surface.

DANGERElectrical System

- Energized electrical circuits present a potentially life threatening hazard. - Ensure all electrical power circuits connected to the unit and supply outlets

or connections are completely de-energized before performing any service. - When testing electrical components, always follow the OSHA standard for

the control of hazardous Energy (Lockout/Tagout), Title 29 Code of Federal Regulations (CFR) Part 1910.147.

Explanation of safety symbols

For your safetyThis documentation has been created exclusively for trained and authorized service providers of Franke Foodservice Systems, Inc.

WARNINGRisk of burning or scalding

- Hot water and steam are released repeatedly during the cleaning cycle. - Keep hands away from the outlet (purge valve) while in operation. - The glass cylinder may be HOT to the touch. - Do not disconnect “Hot Water” line before purging lines of hot water or

allowing suffi cient time for water in lines to cool.

IMPORTANT SAFETY INSTRUCTIONS - READ, UNDERSTAND AND SAVEThis operation manual contains important instructions and safety information about the BKON™ Craft Brewer.Observe the following dangers, warnings, cautions and notices when operating the BKON™ Craft Brewer.

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Safety

WARNING

CAUTION

NOTICE

NOTICE

NOTICEGeneral Reminders.

- Do not discard any loose parts as they may be required for proper operation. - Make sure line voltage matches voltage specifi cations in this manual.

Risk of injury and / or damage to the equipment!Making improper changes in the form of modifi cations or unauthorized repairs can lead to injury or damage to the equipment.

- Programming and settings may only be preformed by authorized service technicians. - Retrofi ts and repairs may only be preformed by authorized service technicians. - Do not make any modifi cations to the equipment that are not authorized by documentation provided by Franke Foodservice Systems, Inc.

Damage can occur from improper transport.Improperly transporting the equipment can cause faults or damage.

- Always transport in an upright position. - Transport the equipment so that it is protected from the elements, such as rain and moisture.

Damage can occur from using inappropriate tools. - Using inappropriate tools can damage components of the equipment.

Possible health hazard from heavy lifting. - Lifting heavy objects unaccompanied can cause injury. - Do not lift or move the equipment without appropriate help or tools.

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Table of Contents

Safety 1

Table of Contents 3

Service Prerequisites 4

Removal / Installation of Parts - Tower 7

Removal / Installation of Parts - WVSC 25

Programming 47

Testing and Adjustments 49

Troubleshooting 53

Water / Air Diagram 57

Electrical Diagram 59

Sequence of Operations 75

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SERVICE PREREQUISITES

If the BKON unit is powered ON upon the service technician’s arrival, the water system will be fi lled with hot water under pressure. Utilize the Cool Down function within the service menu before making any repairs or disconnecting any water lines.

WARNING

Cool Down Instructions

i

Green Tea White Tea

Black Tea

Spirits

Chai / Rooibos

Oolong Tea

Herbal / Fruit

Coffee

17:30

i 17:30

Service Menu

Vacuum Calibrati

Cool Down

Nitrogren Flush

Calibration

i

Cool Down

Brewing Process...

17:30

X

i

Cool Down

Brewing Process...

17:30

X

COOL DOWN completed

Cool Down completed. Turn of mac

CONTINUE

i

Green Tea White Tea

Black Tea

Spirits

Chai / Rooibos

Oolong Tea

Herbal / Fruit

Coffee

17:30

Enter PIN

1 2 3

4 5 6

7 8 9

Cancel 0 Enter

i

Update MBFirmware

Administration

17:30

ExportLog

ClearLog

ResetCounters

ViewLog

< I II

White Tea

ck Tea

Vacuum C

CoCCCCCCC

ogggggggggggggggggggrerenrenenrenenerenrreeennnennrr nnnrrreennrenrreenrrreenrrrrerrr Flushhhhhhhhhhhhhhhh

own

CONTTITTTTTTTTT

CleCleCleleCleeCleCleCleCleeCleeleCleeeeleeClelCleCleeCleeCleClelleeCleeCCClllCClCCCCCCCCCCC aaaaarararaaaaaaaaaaaaaLog

Reseee etCouououoouoouoooooooooooooooooooooooooooo nterssssssssssssssssssssssssssssrsssrrs

II

Press and hold the BKON dots for 5 seconds

Select Cool Down Cool Down is in process Cool Down is complete, select Continue and power off the WVSC

Enter PIN number 4576 and press Enter

Select page 21.

4. 5. 6.

2. 3.

4576

Purge Water System

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Service Prerequisites

Protect Air and Water Line and Connections

Remove the water, air and drain lines if the repair requires their removal.

Place a piece of tape over the water, air and drain tubing to prevent foreign debris from entering the system.

Before reconnecting the water, air and drain tubing ensure any foreign debris is expelled.

1. 2. 3.

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of 867

REMOVAL / INSTALLATION OF PARTS - TOWER

Top Cover (Tower)

Procedure Qty Remarks

(1)(2)(3)

Disassembly OrderElectrical connectionScrew (Phillips)End coverTop cover

421

Assembly is in the reverse order of disassembly Unplug at wall from WVSC

(1)

(3)

(2)

of 868

Removal / Installation of Parts - Tower

Locking Lever


(1)(2)(3)(4)

Disassembly OrderScrewAxel ClampAxisLocking lever

4211

Assembly is in the reverse order of disassembly

(1)

(2)

(3) (4)

Requisite Service Removal / Installation: Top Cover (Tower) - Page 7

of 869

Plunger Assembly


(1)(2)(3)

Disassembly OrderScrew (Phillips)Valve CylinderPlunger

411


Remove the silicone water and air lines and microswitch connections

Requisite Service Removal / Installation: Top Cover (Tower) - Page 7Locking Lever - Page 8

(1)

(2)

(3)


of 8610

Requisite Service Removal / Installation: Top Cover (Tower) - Page 7Locking Lever - Page 8Plunger Assembly - Page 9

Micro Switch Plunger Assembly


(1)(2)(3)(4)(5)

Disassembly OrderScrewWasherSpringMicro SwitchSafety Slide

11111


Caution: spring is easy to looseDisconnect wiring

(1)

(2)

(3)(4)

(5)


of 8611

Logo LEDs


(1)(2)

Removal OrderScrewsLED Board

21


Disconnect wiring connection


(1)

(2)


of 8612

Tower Solenoid Valves


(1)Removal OrderSolenoid Valves

Assembly is in the reverse order of disassembly Disconnect silicone tubing and voltage connectors



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Tower Left Side Panel


(1)Removal OrderSide Panel 1



(1)


of 8614

Temperature Sensors - Thot and Tmix


(1)(2)

Removal OrderNTC Tmix sensorNTC Thot sensor

11

Assembly is in the reverse order of disassembly Ensure water supply is turned off.

Requisite Service Removal / Installation: Top Cover (Tower) - Page 7Tower Left Side Panel - Page 13

(1)

(2)


of 8615

Tower LED Left Side Lights


(1)(2)

Removal OrderLED strip (Upper)LED strip (Lower)

11

Assembly is in the reverse order of disassembly Disconnect wire connections

Requisite Service Removal / Installation: Top Cover (Tower) - Page 7Tower Left Side Panel - Page 13

(1)

(2)


of 8616

Tower Right Side Panel


(1)Removal OrderRight Side Panel 1

Assembly is in the reverse order of disassembly Disconnect (6) wire connections before lifting side panelThot sensor wires are greenTmix sensor wires are grey

(1)



of 8617

User Interface Display


(1)(2)(3)(4)(5)(6)(7)(8)

Removal OrderScrewCoverScrewsPCB BoardStand offTouch screenUser Interface mounting screwsUser Interface gasket

11414121


Disconnect wire connections before removing boards

(1)

(2)

(3)

(4)

(5)

(6)

(7)


(8)

of 8618

Tower LED Right Side Lights


(1)(2)

Removal OrderLED strip (Upper)LED strip (Lower)

11

Assembly is in the reverse order of disassembly Disconnect wire connections

Requisite Service Removal / Installation: Top Cover (Tower) - Page 7Tower Right Side Panel - Page 16

(1)

(2)


of 8619

Drain Pan


(1)(2)(3)(4)

Removal OrderDrain Pan CoverScrewsDrain PanSeal

1411


Not shown

(1)

(2)

(3)

(4)


of 8620

Communication / Power Connector


(1)Removal OrderImage not available


Requisite Service Removal / Installation:


of 8621

Locking Handle


(1)(2)(3)(4)

Removal OrderHandle CoverScrewsAxel ClampLocking Handle

1411


(1)

(2)

(3)

(4)


of 8622

Actuator Switch


(1)(2)(3)(4)(5)(6)

Removal OrderBoltsSpringsHolding frameScrewsLimit housingMicro Switch

441211


Disconnect wiring

(1)

(2)

(3)

(4)

(5)(5)

(6)

Requisite Service Removal / Installation: Locking Handle - Page 21


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Locking Handle Bushing


(1)Removal OrderBrass bushing 2


(1)

Requisite Service Removal / Installation: Locking Handle - Page 21


of 8624

of 8625

WVSC Covers


(1)(2)(3)(4)(5)(6)

Removal OrderScrewsTop coverScrewRight coverScrewLeft cover

2121

21


(2)

(1)

(3)

(5)

(4)

(6)

REMOVAL / INSTALLATION OF PARTS - WVSC

of 8626

Air / Water Separator


(1)(2)

Removal OrderScrewAir / Water Separator

21


Disconnect silicone tubing

(2)

(1)

Requisite Service Removal / Installation: WVSC Covers - Page 25

Removal / Installation of Parts - WVSC

of 8627

Vacuum Pump


(1)(2)(3)

Removal OrderScrewsWasherVacuum pump

221


Disconnect silicone tubing and wiring

(2)(3)

(1)



of 8628

Power Switch


(1)(2)(3)(4)(5)(6)

Removal Order

KnobSet ScrewON / OFF face plateScrewsFront platePower Switch

111411

Assembly is in the reverse order of disassembly DANGER: Disconnect main power before removing power switch

Disconnect wiring

(2)

(3)

(4)

(5)

(6)



(1)

of 8629

Power Supply


(1)(2)

Removal Order

ScrewsPower supply bracket

21

Assembly is in the reverse order of disassembly DANGER: Disconnect main power before removing power supplyNEVER remove the mesh coverDisconnect wiring

(2)

(1)



of 8630

Secondary Board


(1)(2)(3)

Removal Order

ScrewHigh voltage board bracketScrews

116

Assembly is in the reverse order of disassembly DANGER: Disconnect main power before removing power supply

Disconnect wiring


(2)

(3)

(1)


of 8631

Command Board


(1)(2)(3)

Removal Order

ScrewLow voltage board bracketScrews

116

Assembly is in the reverse order of disassembly DANGER: Disconnect main power before removing power supply

Disconnect wiring


(2)

(1)

(3)


of 8632

Communication / Power Connection


(1)(2)

Removal OrderScrewCommunication / Power Connection

41



(2)

(1)


Ensure the largest notch is orientated to the operator side of the WVSC.

of 8633

Communication Port


(1)(2)(3)(4)

Removal OrderScrewNutWasherCommunication Connector

2221



(4)

(3)

(2)

(1)


of 8634

Flow Meter Shelf


(1)(2)

Removal OrderScrewFlow meter shelf

11



(2)

(1)



of 8635

Flow Meter


(1)(2)

Removal OrderScrewFlow meter



(2)

(1)



of 8636

Mixing Valve


(1)(2)

Removal OrderScrewsMixing valve



(2)

(1)



of 8637

Water Pump Motor


(1)(2)(3)(4)

Removal OrderBoltWasherWater pump motorCapacitor

4411


Disconnect silicone tubing and wiringSecured by one nut (see detail below)

(2)

(3)

(1)



Capacitor mounting detail.

of 8638

Rotary Pump


(1)Removal Order Assembly is in the reverse order of disassembly



of 8639

Thermal Block


(1)(2)(3)(4)(5)(6)

Removal OrderBoltWasherThermoblockTubing SpacerSensor NTCSafety Thermostat




(2)

(3)(4)

(1)

(5)

(6)


of 8640

Solenoid Valves


(1)(2)(3)(4)

Removal OrderScrewSolenoid valve holderScrewsSolenoid valve

11

105



(2)

(3)

(4)

(1)



of 8641

Descaling Valve


(1)(2)

Removal OrderScrewsDescaling valve

21



(2)

(1)



of 8642

Water Inlet Valve


(1)(2)

Removal OrderScrewsWater inlet valve

21



(2)

(1)



of 8643

Water Pressure Regulator


(1)Removal OrderWater pressure regulator 1

Assembly is in the reverse order of disassembly Disconnect silicone tubing

(1)



of 8644

Air Pressure Regulator


(1)Removal OrderAir pressure regulator 1

Assembly is in the reverse order of disassembly Disconnect silicone tubing

(1)



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Filter Holder


(1)(2)

Removal OrderThumb ScrewFilter Holder

11


Disconnect silicone tubing

(1)

(2)



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of 8647

PROGRAMMING

Entering / Updating Time and DateUser Interface Software UpdateUploading Main board SoftwareUploading New Menu (Drink Recipes)

Entering Time and Date

1. At the home screen, press the wrench icon button

2. Press the Time/Date button

3. Select the hour box, enter the current hour and press Ok - The time format used is the 24 hour clock, 16:30 is 4:30 PM

4. Select the minutes box, enter the current minutes and press Ok

5. Select the month box, enter the current month and press Ok

6. Select the day box, enter the current day and press Ok

7. Select the year box, enter the current year and press Ok

8. Press the < button will get you to the home screen

9. The Time & Date has been successfully changed

of 8648

Programming

7

1 2 3 4

5 6 8

1 2 3 4

5 6

1 2 3 4

5 6

Update new Menu

Install new Mainboard Software

Install new User Interface Software

Press & hold5 seconds

EnterPasscode4576

Insert

Waitca. 6min

Insert

Waitca. 20 s

Remove

insertSelect file

Waitca. 30 sec

Select

YES

START

RESTART

RESTART7

Remove

7

Remove

20%

RestartMachine

Select

YES

Select file

8RESTART

BK***.FSW

Main Board FW Selection

OK

Recipe File Loaded

Update MBFirmware

Waitapprox. 20 sec.

Waitapprox. 30 sec.

Waitapprox. 6 min.

of 8649

TESTING AND ADJUSTMENTS

User Interface Diagnostics/Service Menu

i 17:30

Service Menu

Vacuum Calibrati

Cool Down

Nitrogren Flush

Calibration

Calibration

Cool Down

Vacuum Calibrati

Nitrogren Flush

i

Green Tea White Tea

Black Tea

Spirits

Chai / Rooibos

Oolong Tea

Herbal / Fruit

Coffee

17:30

Enter PIN

1 2 3

4 5 6

7 8 9

Cancel 0 Enter

4576

Use this function to check water fl ow rate

Use this function to purge hot water before servicing brewer.

Used only at the factory to purge all water prior to shipping.

Use this function to check vacuum pressure.

i

Green Tea White Tea

Black Tea

Spirits

Chai / Rooibos

Oolong Tea

Herbal / Fruit

Coffee

17:30

White Tea

Te

i

Update MBFirmware

Administration

17:30

ExportLog

ClearLog

ResetCounters

ViewLog

< I II< I III


The service menu screen


Select page 2 to enter the service menu

1.

4.

2. 3.

of 8650

Water Calibration Check and Adjustment

Coffee Spirits

Chai / Rooibos

i

X

Calibration

Brewing Process...

17:30

i

Green Tea White Tea

Black Tea

Spirits

Chai / Rooibos

Oolong Tea

Herbal / Fruit

Coffee

17:30

Water Flow is HIGH

OK

It is necessary reduce the flowslightly. Open the Pump by-pass

turning the screw Counter-Clockwise. Then execute the test again.Flow Rate Between 14.5 - 15

i

Green Tea White Tea

Black Tea

Spirits

Chai / Rooibos

Oolong Tea

Herbal / Fruit

Coffee

17:30

Water Flow is LOW

OK

It is necessary increase the flowslightly. Close the Pump by-pass

turning the screw Clockwise. Thenexecute the test again.

i

Green Tea White Tea

Black Tea

Spirits

Chai / Rooibos

Oolong Tea

Herbal / Fruit

Coffee

17:30

Water Flow is OK

OK

Water flow is Ok.No need for adjustments.

Turn machine off,wait 10s and turn it back on.

Flow Rate Between 13.5 - 14.5

The BKON unit comes factory calibrated to the correct water fl ow rate. The following procedure can be used in the event the water fl ow should need to be readjusted. The Calibration function will check the water fl ow rate within the BKON unit.

1. Enter the Service Menu (page 49)2. Press the Calibration button to start water fl ow.

Pump will run for approximately 30 seconds.3. A message screen will appear saying that the water

fl ow is OK, too HIGH or too LOW.4. If it is too high or to low, adjust the pump pressure

accordingly.5. It is best to only turn the adjustment screw in ¼ turn

increments or less.6. Repeat process until you receive the “Water Flow

Rate is “OK” message.Note: You will need to press the Red dot and enter

the password each time you want to run the calibration function.

i 17:30

Service Menu

Vacuum Calibrati

Cool Down

Nitrogren Flush

Calibration

Vacuumuumuumuumummmumuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuummm Cgren Flush

onnnnnnnnnnnnnnnnnnnnnnnn

Testing and Adjustments

Step 2 Start water calibration

System is checking water fl ow rate

Step 3 Message - Water Flow is OK

Step 3 Messages - Water Flow is HIGH

Step 3 Messages - Water Flow is LOW

of 8651

Remove the top and right side panels

Loosen the locking nut (1)Turn the adjustment screw (2)

- Clockwise to increase pressure.

- Counterclockwise to decrease pressure

- Turn adjustment screw in ¼ turn increments or less

Tighten the locking nut.

Locate the water pump.

(1)(2)

Water Pump Adjustment


1. 2. 3.

of 8652

Vacuum Calibration


If the BKON unit is powered ON upon the service technician’s arrival, the water system will be fi lled with hot water under pressure. Utilize the Cool Down function (shown on page 4) before making any repairs or disconnecting any water lines.

WARNING

i

Green Tea White Tea

Black Tea

Spirits

Chai / Rooibos

Oolong Tea

Herbal / Fruit

Coffee

17:30

i 17:30

Service Menu

Vacuum Calibrati

Cool Down

Nitrogren Flush

Calibration

i

Cool Down

Brewing Process...

17:30

X

i

Cool Down

Brewing Process...

17:30

X

COOL DOWN completed

Cool Down completed. Turn of mac

CONTINUE

i

Green Tea White Tea

Black Tea

Spirits

Chai / Rooibos

Oolong Tea

Herbal / Fruit

Coffee

17:30

Enter PIN

1 2 3

4 5 6

7 8 9

Cancel 0 Enter

i

Update MBFirmware

Administration

17:30

ExportLog

ClearLog

ResetCounters

ViewLog

< I II

White Tea

ck Tea

VVVVVVacVVVVVVVVVVVVVVVVVVVVV uumFlushhhhh

CleCleCleleCleeCleCleCleCleeCleeleCleeeeleeClelCleCleeCleeCleClelleeCleeCCClllCClCCCCCCCCCCC aaaaarararaaaaaaaaaaaaaLog

Reseee etCouououoouoouoooooooooooooooooooooooooooo nterssssssssssssssssssssssssssssrsssrrs

II


Select Vacuum Calibration Vacuum Calibration is in process If the vacuum is too low, you will see this screen.


Select page 21.

4. 5. 6.

2. 3.

4576

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of 8653

Vacuum Calibration

i

Green Tea White Tea

Black Tea

Spirits

Chai / Rooibos

Oolong Tea

Herbal / Fruit

Coffee

17:30

i

Cool Down

Brewing Process...

17:30

X

If your adjustment was success-ful, you will see this screen.

Ensure that a brew handle and basket are installed in the brew chamber.

Loosen the locking nut. Power unit OFF.

Move the locking handle down, to the locked position.Note: The calibration will not work

otherwise.

Turn the adjusting knob clockwise to increase the vacuum pres-sure and counter clockwise to decrease.

Tighten locking nut.

Adjust ONLY 1/4 turn at a time. Check calibration after each adjustment.

Reinstall right side and top covers.

Locate the pressure regulator.7.

14.

8.

11. 15.

9.

12. 16.

13.

17.

10.


If the vacuum is too high, you will see this screen.

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XXX

of 8654

of 8655

TROUBLESHOOTING

Error Messages on User-InterfaceError Code Possible Cause Solution

Brew Chamber Glass Brew Chamber not installed correctly 1. Remove and reinstall Brew chamber.

Chamber Not Sealed

Purge valve may be stuck open or clogged with debris.

1. Poke purge valve with purge valve tool to make sure ball moves and is free of debris. Try a different purge valve or brew handle.

2. Make sure brew handle and basket are in place and free of debris.

Brew Chamber not sealed. 3. Make sure locking handle is down and locked in place.

Brew Handle Brew Handle not detected 1. Make sure brew handle and basket are in place when brewing.

Temp. Sensor Temperature check failed 1. Restart unit and try again.

Flow MeterNo water fl ow detected

1. Check supply water

2. Make sure drain from tower and drain from WVCS are not connected to each other. Both should be connect to store drain.

Air in water lines 3. Cycle power and allow the unit to reboot, purging air from lines. Repeat up to 4 times.

of 8656

Troubleshooting

General Trouble ShootingMalfunction Possible Cause Solution

User Interface not onMain power off 1. Check power cord and breaker

Communication cable disconnected 2. Check connection on tower and WVSC

Water leak

Leak Between Tower and WVSC 1. Check water line connections

Drain lines leak 2. Check drain line connections on Tower, WVSC and store drainLeaking from inside WVSC

Did not purge drink Purge valve is stuck in the closed position

1. Use manual purge or remove purge valve, per instructions using purge valve tool. Once valve is removed, use manual purge.

2. Punch with purge valve opener from inside brew handle.

3. Try a different purge valve.

Purge or dripping during brew cycle

Debris in purge valve 1. Use purge valve tool to remove debris from purge ball.

Purge valve spring has become too weak 2. Replace purge valve.

Beverage level is incorrect

Corrupt recipe1. Try a different recipe in the same size

Flowmeter malfunction

Consistent poor beverage quality

Wrong amount of tea / coffee 1. Check recipe and product measurement

Poor incoming water quality 2. Make sure incoming water is in spec.

Corrupt recipe 3. Check recipe

Chamber was locked during startup (result in calibration error)

4. Restart machine and make sure brew basket and handle are not installed during start up.

Beverage too hot or cold 5. Check recipe

of 8657

Temperature Sensor Error Codes

Error Title Message

11 TB1 Sensor Short WVSC - Temperature sensor of Thermal Block 1 is in short.



14 TcoldWater Short WVSC - Cold Water Temperature sensor is in short.

15 ThotWater Short TOWER - Hot Water Temperature sensor is in short.

16 TmixWater Short TOWER - Mix Water Temperature sensor is in short.

17 TB1 Sensor Open/Cold WVSC - Temperature sensor of Thermal Block 1 is Open or incoming water is too cold.

18 TB2 Sensor Open WVSC - Temperature sensor of Thermal Block 2 is Open

19 TB3 Sensor Open WVSC - Temperature sensor of Thermal Block 3 is Open

20 TcoldWater Open/Cold WVSC - Temperature sensor of Thermal Block 1 is Open or incoming water is too cold.

21 TmixWater Open TOWER - Mix Water Temperature sensor is Open.

22 ThotWater Open TOWER - Hot Water Temperature sensor is Open.

Troubleshooting

of 8658

of 8659

WATER / AIR DIAGRAMLe

gend

BK

ON

Wat

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w D

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am

BK

Bre

w C

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F1Fl

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eter

1 (C

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F2Fl

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eter

2 (H

ot W

ater

)

H1

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ting

Ele

men

t The

rmob

lock

1

H2

Hea

ting

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men

t The

rmob

lock

2

H3

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ting

Ele

men

t The

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lock

3

M1

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ump

P1

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ssur

e S

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r 1

P2

Man

omet

er W

ater

Pum

p

P3

Man

omet

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herm

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cks

P4

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um P

ump

TB1

Tem

pera

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Sen

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herm

oblo

ck 1

TB2

Tem

pera

ture

Sen

sor T

herm

oblo

ck 2

TB3

Tem

pera

ture

Sen

sor T

herm

oblo

ck 3

T(co

ld)

Ther

mos

tat C

old

Wat

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T(ho

t)Th

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osta

t Hot

Wat

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T(m

ix)

Ther

mos

tat M

ix W

ater

UV

1Va

lve

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Ove

rpre

ssur

e 12

Bar

(174

PS

I)

UV

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lve

Saf

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Ove

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(29

PS

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UV

3Va

lve

Dis

pens

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(3 P

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Lege

nd B

KO

N W

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fl ow

Dia

gram

V1

Valv

e M

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(Wat

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let V

alve

)

V2

Valv

e A

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aniti

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V3

Valv

e Fi

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V4

Valv

e R

inse

V5

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old

Wat

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V6

Valv

e A

tmos

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V7

Valv

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V8

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low

out

V9

Valv

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V10

Valv

e Va

cuum

V13

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e D

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ling

of 8660

Water / Air Diagram

hv22

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26.0

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of 8661

THERMOBLOCKSH1H2H3

THERMOBLOCKS123

POWER SWITCH

V1 & V13

V3 & V4

V2, V8, V7,V9, V10

V6

WATER PUMP

(EMPTY)

LIMUISEMPTY

FAN

V5

P4

To J1

FM 1&2

Tcold

(EMPTY)

(EMPTY)

(EMPTY)(EMPTY)

X Y

G

NEMA L6-30R

2 156

POWER SWITCH

Electrical Diagram OverviewWater Vacuum Supply Center

X700

X701 X801

X800

X400X401

X202X203

X204

X200

X500X501X502X503

X300

X402X403X504

X301X302X303X304

X704X705

X702

X703

ELECTRICAL DIAGRAM

of 8662

Comm

unica

tion C

able

From X203

BrewChamber

LEDs

LEDRight Upper

LEDRight Lower

LEDLeft Upper

LEDLeft Lower

SENSORS

From X203

Primary LED Board Front

Secondary LED Board Front

Secondary LED Board Back

Primary LED Board Back

Thot ThermostatTmix ThermostatBrew Handle MicroswitchBrew Cylinder Microswitch

Air Pressure Sensor

User Interface Box (Tower) Tower

J11

J10

J2

J3

J1

J5 J6 J3 J1

J106

J4

J1

J1

J1

J1

of 8663

12.0 kW

22.0 kW

32.0 kW

M

X701-1Thermoblocks

Water Pump

X701-2

X701-3

X702-1

X702

X701-4

X701-5

X701-6

X701

X700

X702-2

X Y

G

NEMA L6-30R

208V-220/230V

2

1 5

6

MainPower Switch

Secondary Board Electrical Diagram Overview

6 35 24 1

1234

1 2

1 2

Electrical Diagram

of 8664

Connector Pin Number Wire Color Description / Function VoltageX700 1 Red Main Power 208V-220/230VAC

2 Red Main Power 208V-220/230VAC3 Black Main Power 208V-220/230VAC4 Black Main Power 208V-220/230VAC

X701 1 Blue Thermoblock 1 208V-220/230VAC4 Grey Thermoblock 1 208V-220/230VAC2 Blue Thermoblock 2 208V-220/230VAC5 Grey Thermoblock 2 208V-220/230VAC3 Blue Thermoblock 3 208V-220/230VAC6 Grey Thermoblock 3 208V-220/230VAC

X702 1 Brown Water Pump 208V-220/230VAC2 Blue Water Pump 208V-220/230VAC

X703 1 Empty2 Empty

Electrical Diagram

of 8665

X800-6

X801-1

X705-1

X800-6

X800-5

X800-4

X801-2

X801

X800

X704

X705

X800-2

X800-3

X800-12

X801-3

X705-2

X800-12

X800-11

X800-10

X801-4

X800-8

X800-9 V2

V3

Spare

Fill

Leakage

Rinse

Air Sanitize

Vacuum

Blow Out

Descale

Purge

Mains

Air valve

V7

V4

V2

V10

V8

V13

V9

V1

V6

X704-3X704-1X704-4X704-2

Secondary Board Electrical Diagram Overview (Continued)

Command Board

12 611 510 49 38 27 1

1 23 45 67 89 10

4 23 1

4 23 1

1 2

Electrical Diagram

of 8666

Connector Pin Number Wire Color Description / Function VoltageX704 1 Yellow Rinse (V4) +24VDC

2 Purple Fill (V3) +24VDC3 Yellow Rinse (V4) -24VDC4 Purple Fill (V3) -24VDC

X705 1 Orange Air valve (V6) -24VDC2 Orange Air valve (V6) +24VDC

X800 1 Yellow Spare5 Brown Leakage (V7) +24VDC2 Orange Spare (V2) +24VDC6 Purple Vacuum (V10) +24VDC4 Grey Blow Out (V8) +24VDC6 Blue Purge (V9) +24VDC7 Yellow Spare11 Brown Leakage (V7) -24VDC8 Orange Air Sanitize (V2) -24VDC

12 Purple Vacuum (V10) -24VDC10 Grey Blow Out (V8) -24VDC12 Blue Purge (V9) -24VDC

X801 2 Yellow Main Water (V1) +24VDC1 Brown Descale (V13) +24VDC4 Yellow Main Water (V1) -24VDC3 Brown Descale (V13) -24VDC

Electrical Diagram

of 8667

X400-1H1

H2

H3

Tcold

FM2

FM1

NTC

NTC

NTC

NTC

Thermoblocks Temperature Sensors

Water Temperature Sensor

Flow Meters

X400-2

X403-3

X403-6

X400-3

X401-1

X403-1

X400-4

X400-5

X403-4

X400-6

X400

X401

X403

X401-2

X403-2

X403-5

Command Board Electrical Diagram Overview

Secondary Board

3 62 51 4

3 62 51 4

1 2

1 23 45 67 89 10

Electrical Diagram

of 8668

Connector Pin Number Wire Color Description / Function VoltageX301 1

(Not Used) 2

X302 1(Not Used) 2

X303 1(Not Used) 2

X304 1(Not Used) 2

X400 1 Brown NTC Thermoblock 1 Signal2 Yellow NTC Thermoblock 2 Signal3 Blue NTC Thermoblock 3 Signal4 Brown NTC Thermoblock 1 -24VDC5 Yellow NTC Thermoblock 2 -24VDC6 Blue NTC Thermoblock 3 -24VDC

X401 1 Red NTC Tcold Thermostat Signal2 White NTC Tcold Thermostat -24VDC

X402 1(Not Used) 2

34

X403 1 Brown Flowmeter 2 (Hot) -24VDC2 Orange Flowmeter 2 (Hot) -5VDC3 White Flowmeter 2 (Hot) Signal4 Green Flowmeter 1 (Cold) -24VDC5 Red Flowmeter 1 (Cold) +5VDC6 Blue Flowmeter 1 (Cold) Signal

X504 1(Not Used) 2

3

Electrical Diagram

of 8669

X200-2

X300-2

X503-2

X200-1

X203-6

X202-3

X203-5

X202-2

X203-4

X202-1

X202

X203

X200

X203-3X203-2X203-1

X300-1

X503-1

LIM Board

Communication Port

User Interface Screen

M Vacuum Pump

X500-1

X500

X503

X300

X500-2 Cold Water ODEV5

Fan

Command Board Electrical Diagram Overview (Continued)

3 62 51 4

123

123

1 2

1 2

2 1

Electrical Diagram

of 8670

Connector Pin Number Wire Color Description / Function VoltageX200 1 Blue Fan -24VDC

2 Red Fan +24VDC3 Empty

X202 1 Brown Digital Ground2 Green Communication Port3 Orange Communication Port

X203 1 Brown UI Communication2 Blue UI Communication3 White +24VDC4 Green LIM Communication5 Red LIM Communication6 Black Digital Ground -24VDC

X204 1(Not Used) 2

3

X300 1 Black Digital Ground -24VDC2 Red +24VDC +24VDC

X500 1 Yellow Cold Water ODE (V5) +24VDC2 Yellow Cold Water ODE (V5) Signal

X501 1(Not Used) 2

X502 1(Not Used) 2

X503 1 Black Vacuum Pump +24VDC2 Red Vacuum Pump -24VDC

Electrical Diagram

of 8671

User Interface Board Electrical Diagram Overview

J11-1

J11

J10-2J10-1

J10

J11-2

Command Board

LIM Board

12

3 2 1

Electrical Diagram

of 8672

Connector Pin Number Wire Color Description / Function VoltageJ10 1 Yellow User Interface Power -24VDC

2 Orange User Interface Power +24VDC

J11 1 Brown Communication2 Blue Communication

Electrical Diagram

of 8673

Primary LED Board Front

Command Board

User Interface Board

LIM Board Electrical Diagram Overview

Thot

Micro Switch Brew Handle

Tmix

Micro Switch Brew Cylinder

NTC

NTC

J3-1

J1

J3

J2

J3-2J3-3

J2-8

J2-3

J2-10

J2-2J2-1

J2-9

J2-4

J2-11

Pressure Sensor

J2-5

J1-3

J1-1

J2-7

J1-5J1-6

J2-6

J1-4

J1-2

1110987654321

12345

321

Electrical Diagram

of 8674

Connector Pin Number Wire Color Description / Function VoltageJ1 1 Yellow User Interface -24VDC

2 Orange User Interface +24VDC3 Green Communication4 Red Communication5 White Communication +24VDC6 Black Digital Ground -24VDC

J2 1 Green NTC Thot Thermostat Signal2 Green NTC Thot Thermostat Signal3 Grey NTC Tmix Thermostat Signal4 Grey NTC Tmix Thermostat Signal5 Brown Pressure Sensor6 Purple Pressure Sensor7 Orange Pressure Sensor8 Red Micro Switch Brew Handle Signal9 Red Micro Switch Brew Handle Signal

10 Black Micro Switch Brew Cylinder Signal11 Black Micro Switch Brew Cylinder Signal

J3 1 Blue Logo LED (Customer Side) -24VDC2 White Logo LED (Customer Side) +24VDC3 Yellow Logo LED (Customer Side) Signal

Electrical Diagram

of 8675

Primary LED Board Front = Pin 1

Brew Cylinder LEDs

LIM BoardSecondary LED Board Front

Secondary LED Board BackPrimary LED Board Back

LED Strip Left Upper

LED Strip Left Lower

LED Strip Right Upper

LED Strip Right Lower

LED Boards Electrical Diagram Overview

4

2

1

7

6

5

11

1

22

2

3344

7

J1

J3

J6

J5

J4J106

6

5

421

1

1

1

1

2

2

3

3

4

2

2

Electrical Diagram

of 8676

Connector Pin Number Wire Color Description / Function VoltagePrimary LED Board

J1 (Front) 1 Blue Primary LED Board Power -24VDC2 White Primary LED Board Power +24VDC3 Yellow Primary LED Board Power Signal

J3 (Front) 1 Blue LED Strip Upper Right +24VDC2 Red LED Strip Upper Right Signal3 White LED Strip Upper Right Signal4 Black LED Strip Upper Right -24VDC

J4 (Back) 1 Blue LED Strip Upper Left +24VDC2 Red LED Strip Upper Left Signal3 White LED Strip Upper Left Signal4 Black LED Strip Upper Left -24VDC

J5 (Front) 1 Blue Brew Cylinder LEDs +24VDC2 Red Brew Cylinder LEDs Signal

J6 (Front) 1 Black Secondary LED Board (J106) +24VDC2 Red Secondary LED Board (J106) Signal

Secondary LED BoardJ106 1 Black Secondary LED Board +24VDC

2 Red Secondary LED Board Signal

LED Strips UpperJ1 1 Blue Upper LED Light Strips +24VDC

2 Red Upper LED Light Strips Signal3 White Upper LED Light Strips Signal4 Black Upper LED Light Strips -24VDC5 Orange Upper LED Light Strips -24VDC6 Yellow Upper LED Light Strips Signal7 Purple Upper LED Light Strips +24VDC

LED Strips LowerJ1 1 Lower

2 Lower34 Orange -24VDC5 -24VDC6 Yellow Signal7 Purple +24VDC

Electrical Diagram

of 8677

SEQUENCE OF OPERATIONS

The 9 Core Functions of the BKON Unit:1. Fill2. Rinse3. Vacuum4. Purge no water5. Purge with water6. Blowout7. Drink Preparation

a. Preparation Vacuumb. Preparation Water

8. Start / Initialization

Fill - adding water at the correct temperature into the brew cylinder for beverage productionRinse - adding water to the brew cylinder after beverage cycle is complete to rinse away beverage ingredientsVacuum - decreasing the atmospheric pressure inside the brew cylinder, also called infusionPurge no water - expelling the contents of the brew cylinder by increasing the atmospheric pressure inside the brew

cylinderPurge with water - used to preheat the brew cylinder after an idle periodBlowout - removes water from the air / water separator after each beveragePreparation Vacuum - applying a small amount of vacuum to the brew cylinder. This small amount of vacuum does

two things;1. Air leak check before water enters the brew cylinder2. Pressure buffer, when the water fi rst enters the cylinder a small amount of water will fl ash

into steam due low atmospheric pressure. The pressure buffer prevents an over pressure event.

Preparation Water - heating water to the correct temperature before introducing it to the brew cylinder andStart / Initialization - daily start up of the unit and initialization of the software

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Sequence of Operations

Task T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17

1 Fill V1 M1 F2 F1 T(cold) T(hot) T(mix) V3 M1 V1 V3

2 Rinse V1 M1 F2 F1 T(cold) T(hot) T(mix) V4 M1 V1 V4

3 Vacuum (RAIN) P4 V10 V6 P1 vacuum pump speed modulation P4 V6 V10 V7 V7

4 Purge (No Water)Drink Dispensing P4 V9 V6 P1 vacuum pump speed

modulation P4 V6 V9

5Purge (With Water)Preheat Brew Cylinder

P4 V9 V6 P1 vacuum pump speed modulation V1 M1 V4 V9 V6 V4 V1 M1

6 Blowout Air/Water Separator V9 V8 P4 P4 V9 V8

7 Drink Preparation Vac Temp

a Vacuum Preparation P4 V10 V6 P1 to sense vacuum P4 V10 V6 V7 V7

b Water Temp Preparation V1 M1 T(cold) T(hot) T(mix) to sense water on

way to drain V5

Open

Lege

nd

SensingClosed

of 8679

Sequence of operations for the core functions:Fill -

1. Activate (open) main water inlet valve (V1)2. Activate (start) water pump (M1)3. Cold water thermostat ((T)cold) measures the temperature of the cold water4. Hot water fl owmeter 2 (F2) measure the amount of hot water5. Cold water fl owmeter (F1) measures the amount of cold water6. Air sanitizing valve (V2), not activated7. Hot water thermostat ((T)hot) measures the temperature of the hot water8. Mix water thermostat ((T)mix) measures the temperature of the mix water9. Active (open) the fi ll valve (V3), water will enter the brew cylinder

10. Deactivate (close) the water pump (M1)11. Deactivate (close) the main water inlet valve (V1)12. Deactivate (close) the fi ll valve (V3), water will stop entering the brew cylinder

Vacuum -

1. Activate (open) vacuum pump (P4)2. Activate (open) vacuum valve (V10)3. Activate (open) atmosphere valve (V6)4. Pressure sensor 1(P1) measures the vacuum pressure5. Vacuum pump speed modulation6. Vacuum pump speed modulation7. Vacuum pump speed modulation8. Vacuum pump speed modulation9. Vacuum pump speed modulation

10. Deactivate (Close) vacuum pump (P4)11. Deactivate (Close) atmosphere valve (V6)12. Deactivate (Close) vacuum valve (V10)13. Activate (open) air leakage valve (V7)14. Deactivate (Close) air leakage valve (V7)

Rinse -

1. Activate (open) main water inlet valve (V1)2. Activate (start) water pump (M1)3. Hot water fl owmeter (F2) measure the amount of hot water4. Cold water fl owmeter (F1) measures the amount of cold water5. Cold water thermostat ((T)cold) measures the temperature of the cold water6. Hot water thermostat ((T)hot) measures the temperature of the hot water7. Mix water thermostat ((T)mix) measures the temperature of the mix water8. Active (open) the rinse valve (V4), water will enter the brew cylinder9. Deactivate (close) the water pump (M1)

10. Deactivate (close) the main water inlet valve (V1)11. Deactivate (close) the fi ll valve (V3), water will stop entering the brew cylinder


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Purge NO water -

1. Activate (open) vacuum pump (P4)1. Activate (open) purge valve (V9)2. Activate (open) atmosphere valve (V6)3. Pressure sensor 1(P1) measures the vacuum pressure4. Vacuum pump speed modulation5. Vacuum pump speed modulation6. Vacuum pump speed modulation7. Vacuum pump speed modulation8. Vacuum pump speed modulation9. Vacuum pump speed modulation

10. Deactivate (Close) vacuum pump (P4)11. Deactivate (Close) atmosphere valve (V6)12. Deactivate (Close) purge valve (V9)

Purge WITH water -

1. Activate (open) vacuum pump (P4)2. Activate (open) purge valve (V9)3. Activate (open) atmosphere valve (V6)4. Pressure sensor 1(P1) measures the vacuum pressure5. vacuum pump speed modulation6. vacuum pump speed modulation7. vacuum pump speed modulation8. vacuum pump speed modulation9. vacuum pump speed modulation

10. Activate (open) the main water inlet valve (V1)11. Activate (start) water pump (M1)12. Activate (open) rinse valve (V4)13. Deactivate (Close) purge valve (V9)14. Deactivate (Close) atmosphere valve (V6)15. Deactivate (Close) rinse valve (V4)16. Deactivate (Close) main water inlet valve (V1)17. Deactivate (Close) water pump (M1)


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Blowout -

1. Activate (open) purge valve (V9)2. Activate (open) blowout valve (V8)3. Activate (open) vacuum pump (P4)4. Deactivate (Close) vacuum pump (P4)5. Deactivate (Close) purge valve (V9)6. Deactivate (Close) blowout valve (V8)

Start / Initialization -

Preparation vacuum -

1. Activate (open) vacuum pump (P4)2. Activate (open) vacuum valve (V10)3. Activate (open) atmosphere valve (V6)4. Pressure sensor 1(P1) measures the vacuum pressure5. To sense vacuum6. To sense vacuum7. To sense vacuum8. To sense vacuum9. Deactivate (Close) vacuum pump (P4)

10. Deactivate (Close) vacuum valve (V10)11. Deactivate (Close) atmosphere valve (V6)12. Activate (open) air leakage valve (V7)13. Deactivate (Close) air leakage valve (V7)

Preparation Water Temperature -

1. Activate (open) main water inlet valve (V1)2. Activate (start) water pump (M1)3. Cold water thermostat ((T)cold) measures the temperature of the cold water4. Hot water thermostat ((T)hot) measures the temperature of the hot water5. Mix water thermostat ((T)mix) measures the temperature of the mix water6. To sense water on the way to drain7. To sense water on the way to drain8. To sense water on the way to drain9. To sense water on the way to drain

10. To sense water on the way to drain11. Cold water mix valve (V5) optional12. Beverage cycle begins


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of 8683

The 5 Beverage Functions1. Prewash2. Fill3. Infusion4. Steep5. Dispense

Prewash - adding a small amount of water to wash the tea leaves (mostly darker teas)a. Preparation waterb. Preparation vacuumc. Filld. Purge no water

Fill - adding the correct temperature water to the brew cylindera. Preparation waterb. Preparation vacuumc. Fill

Infusion - decreasing the atmospheric pressure of the brew cylindera. Vacuum

Steep - giving the beverage time to brew (fl avor extraction)Dispense - expelling the beverage from the brew cylinder to the cup. By increasing the atmospheric pressure inside

the brew cylinder the check valve inside the purge valve is forced open allowing the brew cylinder to empty

b. Purge no waterc. Blowout

Beverage functions will vary both in the number of times used and in the amount of time they are engaged. These two variations are based on the programmed beverage recipe.


of 8684

N

24 7

35 10

40 17

30 15

5

6

3

250 50

205°

100 25

0 45

0 25

Brew Parameters Code Chart


of 8685

40 17

30 15

The blue pie shapes represents a negative pressure inside the brew cylinder, a vacuum, also called an infusion cycle.

Vacuum (Depth / Holding Time)The two numbers inside the blue box represents negative pressure amount and the time the pressure is held.In this example the unit decreases pressure inside the brew cylinder to -40 kPa for 17 seconds.Kilopascals (kPa)100 kPa = 1 bar

= 14.5 psi= 29.5 inHg

Purge (Depth / Holding Time)The two numbers inside the red box represent the positive pressure amount and the time the pressure is held.In this example the unit increases pressure inside the brew cylinder to 30 kPa for 15 seconds.Kilopascals (kPa)100 kPa = 1 bar

= 14.5 psi= 29.5 inHg

The red pie shapes represents a positive pressure inside the brew cylinder, also called a purge cycle.


of 8686

250 50

5

205°

Water Injection (Fill / Rinse)Water quantity is measured in milliliters (ml)In this example a total of 300 ml of water is injected into the brew cylinder. 250 ml of water is injected through the fi ll valve (V3) and 50 ml through the rinse valve (V4)

Atmosphere PauseThis is the amount of time in seconds that the unit pauses to allow the beverage to brew or steep.

Beverage TemperatureFor this example the beverage temperature is programmed for 205° F

Starting point and order of sequenceThe black vertical line is the stating point for the beverage cycle. The arrow is the order of sequence.


Franke Foodservice Systems Inc.800 Aviation ParkwaySmyrna, TN 37167www.frankefs.com

(19006964 Rev. B, April, 2015)© 2014 Franke Foodservice Systems, Inc. This media is the confi dential property of Franke Foodservice Systems, Inc. and shall not be reproduced in any form of media without the express written permission of Franke. BKON, BKON Craft Brewer, RAIN, Reverse Atmospheric Infusion, and the red dot logo are trademarks of Bkon LLC. Franke mark used under license Franke Technology and Trademark Ltd., Switzerland. Due to continuous product development, Franke Foodservice Systems Inc. reserves the right to make changes in design and specifi cations without prior notice.

Franke Group, which includes both Franke Foodservice Systems and Coffee Systems divisions, is one of the worlds leading suppliers of fully automatic coffee machines and innovative, out-of-home hot-beverage solutions. Franke is BKON's exclusive global partner, providing engineering, manufacturing, distribution and support for commercial systems that use BKON's patented Reverse Atmospheric Infusion™ brewing technology.

For Support:Tel 1-800-537-2653 opt. 2

bkon service manual draft 36 jjp

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