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Bunn CDBC-APS, Руководство по эксплуатации и обслуживанию

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Bunn CDBC-APS Скачать руководство пользователя страница 14

Page 14

TROUBLESHOOTING (cont.)

PROBLEM

PROBABLE CAUSE

REMEDY

Spitting  or  excessive  steaming
(cont.)

Brewer is making unusual noises

2a.  Temperature  Probe  (CDBC-
APS/TS/TSR)

2b. Temperature Probe (CEZ-APS/
TS/TSR)

3. Control Board (CDBC & CEZ)

1. Plumbing lines

2. Water supply

3. Lime build up

A)  Remove  the  probe  from  the
grommet and submerge in a water
bath of approximately 70

°

F(21

°

C).

Connect  an  ohmmeter  to  pins  3
and  4  of  the  J3  connector.  At
60

°

F(16

°

C) the reading should be

15.3k 

±

 2k OHMS, at 70

°

F(21

°

C)

the reading should be 11.8k 

±

 2k

OHMS, and at 80

°

F(27

°

C) the read-

ing should be 9.3k 

±

 2k OHMS. If

the probe is within these param-
eters, reconnect the J3 plug to the
control board.

B)  Remove  the  probe  from  the
grommet and submerge in a water
bath of approximately 70

°

F(21

°

C).

Connect  an  ohmmeter  to  pins  2
and  3  of  the  J5  connector.  At
60

°

F(16

°

C) the reading should be

15.3k 

±

 2k OHMS, at 70

°

F(21

°

C)

the reading should be 11.8k 

±

 2k

OHMS, and at 80

°

F(27

°

C) the read-

ing should be 9.3k 

±

 2k OHMS. If

the probe is within these param-
eters, reconnect the J5 plug to the
control board.

Set  the  temperature  to  200

°

F

(95

°

C). Let tank temperature sta-

bilize.  If  temperature  in  tank  is
above temperature setting by more
than  7

°

F,  replace  the  control

board.(See pages 21 & 22)

Plumbing lines should not rest on
the counter top.

The brewer must be connected to
a cold water supply.

Remove  the  tank  lid  and  clean
inside of tank with a deliming agent,
if necessary.

HEATING CIRCUIT (cont.)

29253 030101

Содержание CDBC-APS

Страница 1: ...ATI ON SPR ING FIE LD ILL INO IS U S A MO DE L S N VO LTS A C AM P WA TTS PH AS E WIR E HE RTZ CO VER ED UN DE R ON E OR MO RE OF THE FO LLO WIN G PA TEN TS ON E OR MO RE OT HE R PA TEN TS MA Y BE PEN DIN G B U N N MA NU FAC TUR ED BY BU NN O MA TIC CO RP OR ATI ON SPR ING FIE LD ILL INO IS U S A MO DE L S N VO LTS A C AM P WA TTS PH AS E WIR E HE RTZ CO VER ED UN DE R ON E OR MO RE OF THE FO LLO ...

Страница 2: ...r damage or casualty THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY WRITTEN OR ORAL EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF EITHER MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE The agents dealers or employees of Bunn are not authorized to make modifications to this warranty or to make additional warranties that are binding on Bunn Acc...

Страница 3: ...Page 3 USER NOTICES Carefully read and follow all notices in this manual and on the equipment All labels on the equipment should be kept in good condition Replace any unreadable or damaged labels ...

Страница 4: ...REMENTS These brewers must be connected to a cold water system with operating pressure between 20 and 90 psi 138 and620kPa froma1 2 orlargersupplyline Ashut offvalveshouldbeinstalledinthelinebeforethebrewer Install a regulator in the line when pressure is greater than 90 psi 620 kPa to reduce it to 50 psi 345 kPa The water inlet fitting is 1 4 flare Bunn O Matic does not recommend the use of a rev...

Страница 5: ...empty NOTE Hot water will be available at the faucet in a limited amount whenthe ON OFF indicatorisnotglowingbecausethetankwillnot refill BREW SWITCH Momentarilypressingandreleasingtheswitchstartsabrewcyclewhenthe ON OFF switchisinthe ON upper position NOTE The ON OFF switch must be in the ON upper position to initiate and complete a brew cycle READY INDICATOR This indicator glows when the presele...

Страница 6: ... finish and measure the amount of water in the server It should be 64 ounces 2 Refer to the adjustments section of this manual should the volume need to be increased or decreased The brewer is now ready for use in accordance with the coffee brewing instructions below COFFEE BREWING 1 Insert a BUNN filter into the funnel 2 Pour the fresh coffee into the filter and level the bed of grounds by gently...

Страница 7: ...Page 7 CEZ APS TS TSR ADJUSTMENTS OPTIONAL SETTINGS ...

Страница 8: ...rior to making these adjustments Adjusting Brew Volumes The brewer is factory set to deliver 64 ounces 2 for each brew cycle BREW VOLUME SET UP Use the following steps when the setting is unknown or a different circuit board is being installed 1 Place an empty funnel in the funnel rails and an empty server or graduated vessel beneath the funnel 2 Place the ON OFF switch in the ON upper position 3 ...

Страница 9: ...notices Before troubleshooting this brewer check for the following A Control Boards CDBC APS TS TSR 1 Make sure ribbon cable is properly attached to the control board ALL PINS INSERTED INTO PLUG 2 Makesurethereisanyloninsulatingwasherundereachscrewheadthatholdsthecontrolboardtotheplastic front end cap This is important for proper operation B Control Boards CEZ APS TS TSR Locate J6 connector on con...

Страница 10: ...N and indicator is lit Remove the Probe and check for lime deposit on tip Clean and reinstall Disconnect the brewer from the power source and remove wires from refill valve coil Check for continuity across the terminals of the solenoid coil If continuity is notpresent replacetherefillvalve See page 30 If continuity is present the valve may be stuck closed Shut water off to brewer SettheON OFFswitc...

Страница 11: ...yshouldbepresent Connect the J3 plug to the control board and proceed to step 3 B Disconnectthebrewerfromthe power source Disconnect the J5 connector from the control board Check for continuity from the nut on top of the level probe to pin 5 of the plug continuity should be present Pull the temperature probe up about an inch from the grommet Check for continuity from the outside surface of the tem...

Страница 12: ...l the temperature probe up about an inch from the grommet Check for continuity from the outside surface of the temperature probe and pin 4 of the plug continuity should be present Connect the J3 plug to the control board and pro ceed to step 4a B Disconnectthebrewerfromthe power source Disconnect the J5 connector from the control board Check for continuity from the tank mounting screw where the gr...

Страница 13: ...eters reconnect the J3 plug to the control board B Remove the probe from the grommetandsubmergeinawater bathofapproximately70 F 21 C Connect an ohmmeter to pins 2 and 3 of the J5 connector At 60 F 16 C the reading should be 15 3k 2k OHMS at 70 F 21 C the reading should be 11 8k 2k OHMS andat80 F 27 C theread ing should be 9 3k 2k OHMS If the probe is within these param eters reconnect the J5 plug ...

Страница 14: ...rs reconnect the J3 plug to the control board B Remove the probe from the grommetandsubmergeinawater bathofapproximately70 F 21 C Connect an ohmmeter to pins 2 and 3 of the J5 connector At 60 F 16 C the reading should be 15 3k 2k OHMS at 70 F 21 C the reading should be 11 8k 2k OHMS andat80 F 27 C theread ing should be 9 3k 2k OHMS If the probe is within these param eters reconnect the J5 plug to ...

Страница 15: ...for voltage across the black and white terminals at the termi nal block The indicator lamp must be lit Allow brewer to heat until ready lamp is lit or disable the brew lockout feature See page 7 or 8 Press ON OFF switch indicator must be lit Brewer will refill until water touches probe inside tank Water must be in contact with refill probe before brew cycle will start Disconnect the brewer from th...

Страница 16: ...f continuity is present the valve may be stuck closed Set up brewer according to in structionsinsection Adjustments BrewVolumes Seepages7or8 Usingastopwatchorsecondhand time the length of the brew cycle Record this time inside the top lid Ifserviceiseverneededagain use the time as reference to determine if time has changed Inspect the dispense valve and sprayhead for excessive lime de posits Delim...

Страница 17: ...six hole stainless steel spray head must be used for proper extraction Place an empty brew funnel on an empty server beneath the spray head Initiatebrewcycleandcheck the water temperature immedi ately below the sprayhead with a thermometer The reading must not be less than 195 F 91 C Ad just the temperature setting to in crease the water temperature RefertoInitialSet upinstructions BUNN paper filt...

Страница 18: ...remain in the funnel 1 Sprayhead 2 Funnel loading Make sure sprayhead is present and holes are clear and unob structed Thereshouldbesixsepa rate streams of water coming out of the sprayhead The BUNN paper filter must be centered in the funnel and the bed ofgroundsleveledbyshakinggen tly 29253 071599 ...

Страница 19: ...ank and circuit board 2 Low Tank Level Fault Water pressure Level probe dry for 7 minutes after fill valve is energized Level probe wiring Temperature probe wiring Fill valve wiring function strainer 3 Low Water Temperature Fault Tank heater wiring function Sensor in tank is calling for heat for 30 minutes or more Temperature probe wiring 4 Tank Sensor Disagreement Temperature probe wiring Level p...

Страница 20: ...ecome necessary Refer to Troubleshooting for assistance in determining the cause of any problem WARNING Inspection testing and repair of electri cal equipment should be performed only by qualified service personnel The brewer should be unplugged when servicing except when electrical tests are re quired and the test procedure specifically states to plug in the brewer COMPONENT ACCESS WARNING Discon...

Страница 21: ...sconnect the black wire and blue wire from the relay on the control board 2 Disconnect the 10 pin connector and the 4 pin connector from the main wiring harness 3 Disconnect the 11 pin connector from the control panel 4 Remove the four 6 screws and four nylon wash ers and the two 4 40 screws securing the control board to the end cap assembly 5 Install a new control board and secure with the four 6...

Страница 22: ... 5 Remove the four spacers from the control board and attach them to the new board 6 Locate J6 connector on control board If jumper is across pins 1 2 board is set to operate tea brewer or a brewer that DOES NOT use a water level probe If jumper is across pins 2 3 board is set to operate a coffee brewer or a brewer that uses a water level probe Look at the bottom side of the control board Pin 1 of...

Страница 23: ...moval and Replacement 1 Disconnect the 11 pin connector to the switch panel from the control board 2 Remove the four 6 screws nylon washers and the two 4 40 screws securing the control board to the end cap assembly and set aside 3 Gently pry the switch panel from the end cap assembly 4 Removeanyadhesivethatremainsontheendcap 5 Removetheadhesivebackingfromthenewswitch panel Inserttheribbonconnector...

Страница 24: ...ILL INOI S U S A MO DE L S N VO LT S A C AM P WAT TS PH AS E WIRE HE RT Z CO VE RE D UN DE R ON E OR MO RE OF TH E FO LL OW ING PA TE NT S ON E OR MO RE OT HE R PA TE NT S MA Y BE PE ND ING DISCONNECT FROM POWER SOURCE BEFORE REMOVAL OF ANY PANEL OR REPLACEMENT OF ANY COMPONENT WARNIN G ...

Страница 25: ...PONENT WARNIN G C A U T I O N W A R M E R S A N D S U R F A C E S A R E H O T SERVICE cont BREW SWITCH Start Model CEZ APS TS TSR Location The BREW switch is located in the center front of the hood Test Procedure 1 Disconnect the brewer from the power source 2 Disconnect the white yellow wire from the top switch terminal and the white orange from the bottom switch terminal 3 Check for continuity a...

Страница 26: ...ve waterborne particles If the sound is not heard as described proceed to 6 P1919 P1853 WHI GRN from Control Board WHI from Terminal Block FIG 10 DISPENSE VALVE WIRING FIG 9 DISPENSE VALVE 29253 030101 6 Connect the voltmeter lead ends to the dispense valve coil terminals Connect the brewer to the power source Brewer temperature lockout must be disabled Place ON OFF Switch in the ON position Press...

Страница 27: ... BY BU NN O MA TIC CO RP OR ATI ON SPR ING FIE LD ILL INO IS U S A MO DE L S N VO LTS A C AM P WA TTS PH AS E WIR E HE RTZ CO VER ED UN DE R ON E OR MO RE OF THE FO LLO WIN G PA TEN TS ON E OR MO RE OT HE R PA TEN TS MA Y BE PEN DIN G ...

Страница 28: ... panel as previously described 2 Disconnect the vent hose from the top of the tank by pulling the elbow fitting from the grommet in the top of the tank lid 3 Drain water from the tank 4 Disconnect the water supply tube to the dispense valve from the side of the tank 5 Disconnect the water supply tube to the solenoid valve from the bottom of the tank 6 On brewers with faucet disconnect the outlet w...

Страница 29: ...sing 8 32 nut 22 Connect the pink wire to the level probe 23 Insert the temperature probe through the grom met in the tank lid 24 Install the elbow fitting of the vent hose into the grommet in the tank lid 25 On brewers with faucet connect the outlet water line of the faucet to the side of the tank and secure with clamp 26 Connect the water supply tube from the solenoid to the bottom of the tank a...

Страница 30: ...Page 30 TR M2 J1 J2 J3 J4 J5 J6 J7 TR M1 ...

Страница 31: ...ILL DISPENSE J1 1 J1 2 J1 1 J1 5 J1 10 C O N T R O L P C B O A R D COM N O BLK BLK BLK BLK 14 BLK 14 BLK 14 BLK WHI GRN WHI GRN WHI BLU WHI BLU COUNTER OPTIONAL 120V AC 2 WIRE 120 208V AC 3 WIRE 120 240V AC 3 WIRE SINGLE PHASE BLK WHI CONTROL PANEL ASSY J2 1 J2 6 J2 11 BREW SW ON OFF SW HIDDEN SW J3 1 J3 4 BLK PNK WHI GRN LEVEL PROBE t STATIC SHIELD 29253 071599 SCHEMATIC WIRING DIAGRAM CDBC APS T...

Страница 32: ...Page 32 SCHEMATIC WIRING DIAGRAM CEZ APS TS TSR WHI 29341 0000B 6 99 1998 BUNN O MATIC CORPORATION WHI WHI BREW SWITCH TANK HEATER ...

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