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120 VOLTS AC 2 WIRE

120/208-240 VOLTS AC 3 WIRE

208-240 VOLTS AC 2 WIRE

SINGLE PHASE 50/60HZ

J14-1

J14-7

J18-1

J18-6

J7-1

J7-5

J7-10

J2-1

J2 -8

J3-1

J3-6

J4-1

J4-5

J5-1

J5-3

-1

-5

-1

-2

J1-1

J1-4

J15-1

J15-4

J8-1

J8-3

J16-1

J16-5

J16-12

DOOR

PORTION

CONTROL

ORN

BLK

TAN

BLK

GRN

RED

SOL

RED

SOL

LEFT DISP

RIGHT DISP

HOT WATER

REFILL

RED

OVERFLOW

PROTECTION SW

CABINET

THERMISTOR

COOLING CABINET

LEFT

CONDUCTANCE

SENSOR

RIGHT

CONDUCTANCE

SENSOR

WHI

GRN

WHI/ORN

WHI/YEL

ORN

BLK

RED

VIO

BLU

RED

YEL

RIGHT

PUMP

LEFT

PUMP

RED

BLK

RED

BLK

TRIAC

TANK HEATER

LIMIT

THERMOSTAT

N (120V 2-Wire)

L2 (208-240V 2-Wire)

RED
RED/BLK

RED/BLK

BRN/WHI

ORN

BLU

PNK

BLK

VIO

BLK

RED

BLK
BLK

BLK

GRN

BRN/BLK

BLU/BLK

WHI/GRY

WHI/RED

WHI/BLU

WHI/YEL

WHI/ORN

BLK

RED

BLK

WHI/BLU

J1-1

J1-5

J1-10

J1-16

WHI

GRN/WHI

GRN/BLK

WHI/BLK

WHI/G

WHI/VIO

WHI/YEL

RED/BL

ORN/BLK

RED/WH

BLU/WH

BLU/BL

BLK-14

BLK

BLK-14

BLU-14

RED-14

WHI

RIGHT RPM

SENSOR

LEFT RPM

SENSOR

RED

BLK

RED

BLK

GRN

SELECTOR

SWITCH

SELECTOR

SWITCH

RINSE

PRIME

NITE

RUN

N(L2)
L(L1)

-V

UNIVERSAL

POWER SUPPLY

1
2
3
4
5
6
7

YES (+)

EXIT

NO (-)

TOUCHPAD

GRN

SCHEMATIC WIRING DIAGRAM

LCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2C

WHI/ORN

WHI/YEL

BLK

GRN

WHI/RED

TAN

WHI/YEL

WHI/VIO

WHI/GRY

GRN

ORN

RED

BLK

WHI

GRN/WHI

GRN/BLK
WHI/BLK

RED/BLK

ORN/BLK

RED/WHI

BLU/WHI

BLU/BLK

WHI/YEL

HEAT SINK

THERMISTOR

LLC Models only

PELTIER

MASTER ON/OFF

SWITCH

LF DISP. SW.

RT DISP. SW.

-V

BLK

RED

TUBE

WARMER

TUBE

WARMER

DISPENSERS WITH

PORTION CONTROL

Early Models

SW. & THERMOSTAT

Models with Master ON/OFF Switch

34766 031907

Содержание LCA-2

Страница 1: ...ONE 217 529 6601 FAX 217 529 6644 To ensure you have the latest revision of the Operating Manual or to view the Illustrated Parts Catalog Programming Manual or Service Manual please visit the Bunn O Matic website at www bunn com This is absolutely FREE and the quickest way to obtain the latest catalog and manual updates For Technical Service contact Bunn O Matic Corporation at 1 800 286 6070 34766...

Страница 2: ...BUNN Accordingly statements by such individuals whether oral or written do not constitute warranties and should not be relied upon If BUNN determines in its sole discretion that the equipment does not conform to the warranty BUNN at its exclusive option while the equipment is under warranty shall either 1 provide at no charge replacement parts and or labor during the applicable parts and labor war...

Страница 3: ...ing the Pump Tubing 23 Draining the Hot Water 24 Troubleshooting 25 Field Calibration of the Concentrate Pumps 30 Dispenser Flow Rate Calibration 31 Field Calibrating the Hot Water Flow Rate 31 Field Calibrating the Empty BIB Warning 32 Schematic Wiring Diagrams 33 CONTENTS INTRODUCTION The Liquid Coffee Ambient Dispenser LCA 2 and the Liquid Coffee Chilled Dispenser LCC 2 delivers two types of co...

Страница 4: ...od condition Replace any unreadable or damaged labels 00656 0000 00986 0002 37881 0000 This equipment must be installed to comply with the International Plumbing Code of the International Code Council and the Food Code Manual of the Food and Drug Adminis tration FDA For models installed outside the U S A comply with the applicable Plumbing Sanitation Code Optional Field Wiring 208 240 V 25 8 A 620...

Страница 5: ...ater wire to the Top Red Terminal as shown Fig 1 Fig 2 Fig 3 34766 110408 120V A C 120V A C 208 or 240V A C RED 208 or 240V A C 120V A C TO MASTER ON OFF SWITCH BLACK RED TO MASTER ON OFF SWITCH BLACK RED TO MASTER ON OFF SWITCH BLACK FIELD WIRING TERMINAL BLOCK DIAGRAM For all 208 240 Volt Connections Use No 10 AWG Wires suitable for 90 C 194 F 1 Unit shipped per Fig 1 wired for 120V A C 2 Wire 2...

Страница 6: ...umbing Sanitation Code for your area INITIAL SET UP NOTE The LCC 2 Chilled Unit weighs approximately 80 lbs 36 3 kg and the LCA 2 Ambient Unit weighs approximately 70 lbs 31 8 kg If necessary use more than one person when lifting or moving the dispenser 1 Locate and remove the information packets and tube kits from top of packaging and set aside 2 Remove foam packing and cut around the bottom of b...

Страница 7: ...e mix chamber back into position in the dispenser you may have to rotate it slightly and secure it with the two screws 10 Reposition the grommet vent line and pump tubing onto the mix chamber ports Caution Failure to properly replace and secure any of the above components may result leaks and or cause damage to the dispenser IfyouchangedtheDispenserFlowRate youwillneedtoreprogramthedispensertothen...

Страница 8: ...e 2 Depress the tension screw and remove it from the notch in the pump body releasing the spring tension on the pump band 3 Apply lubricant BUNN O MATIC part number M2531 0001 to the new pump tubing 4 Insert the tubing onto the mix chamber port and wrap the tubing around the pump rotor making sure that the elbow and clamps end up on the bottom side of the pump body 5 Close the compression band rei...

Страница 9: ... chiller WARNING The OFF Mode does not remove AC power from the dispenser Disconnect power source before servicing the dispenser c Night Anti pilfering mode that disables dispensing but keeps the tank heater and chiller if applicable operational 7 Door Interlock Switch Unit will not dispense product if the door is open 8 Power LED Red illuminates when AC power is applied to dispenser 9 Ready LED G...

Страница 10: ...is full The dispenser will not begin heating the water until after the tank is filled Dispenser models with product chillers will begin to cool the cabinet at this time 4 The Green READY LED will illuminate when the tank temperature reaches the preset ready temperature Note The time required to heat the water initially will vary depending on the AC Power supplied to the dispenser While the tank is...

Страница 11: ...actory preset range is 10 and is adjustable to a Max of 15 This insures that the FlavorGard system is not responding to factors that cannot be corrected by minor adjustments to the speed of the metering pump e g kinked hoses low water pressure severely worn tubes empty BIB s etc NOTE Changes to Concentrate Ratios or Dispenser Flow Rates will automatically disable FlavorGard You will need to re ena...

Страница 12: ...IB Warning Then enable the BIB Empty Lockout feature refer to the BIB Empty Lockout menu in Programming the Dispenser The dispenser will now Lockout dispensing and flash the Right or Left REFILL LED corresponding to the empty BIB Once the BIB has been replaced PRIME the concentrate line refer to Priming the Concentrate Lines and then dispense mixed product until the REFILL LED goes out NOTE If the...

Страница 13: ...ate Select NO to deactivate Select YES or NO Place a 16 Oz 500 mL cup undertheLeftdispensetip then activate the Left dispenser Select YES or NO Place a 16 Oz 500 mL cup under the Right dispense tip then activate the Right dispenser Normal Display for LCA models No Chiller Normal Display for LCC models with Chiller Enter the desired Mix Ratio for the concentrate used in the Left dispenser 20 1 100 ...

Страница 14: ...ed Scroll down to continue Set the volume to be dispensed during a Left Portion controlled dispense to 0 640 Oz or 0 18 93L Set the volume to be dispensed during a Right Portion controlled dispense to 0 640 Oz or 0 18 93L Set the desired portion control volume to be dispensed during a Normal Left dispense to 0 640 Oz or 0 18 93L Set the desired portion control volume to be dispensed during a Alter...

Страница 15: ...assword code _ _ _ _ as you will need it to access these functions in the future Use the or buttons to enter password Enter the access Code to view the remaining functions Factory Default 0 Use the or buttons to adjust the target Temp Use the or buttons to adjust the target Temp Use the or buttons to adjust the target Temp Select RESET to clear total NONE Select RESET to clear total NONE Sets the ...

Страница 16: ...nable Use the or buttons to adjust the Delay Time The Left Pump will dispense concentrate for 20 seconds then shut off automatically Collect and measure the concentrate dispensed Enter the volume of concentrate measured from the Left Pump in mL not Oz regardless of Preferred Units selected The Left Dispenser will dispense hot water for 20 seconds then shut off automatically Collect and measure the...

Страница 17: ...easured from the Right Pump in mL not Oz regardless of Preferred Units selected The Right Dispenser will dispense hot water for 20 seconds then shut off automatically Collect and measure the water dispensed Enter the volume of the water measured from the Right dispenser in Oz mL Scroll down to bypass this screen The Hot Water Dispenser will dispense for 20 seconds then shut off automatically Colle...

Страница 18: ...e OFF Delay Flushes the mix chamber at the end of a dispense LED diagnostics Selecting YES will light all Front Door LED s SwitchDiagnostic Activateswitchesseparatelyto test Display will indicate which Switch has been activated NOTE Door Interlock switch must be held closed RefillValveDiagnostic PressYEStomomentarily energize the Solenoid CAUTION Inlet Valve will open and water will flow if connec...

Страница 19: ... Installation Decal on the door for proper routing See Fig 3 7 Close the cabinet door 34766 042304 PRIMING THE CONCENTRATE LINES 1 Open the dispenser door 2 Load concentrate per instructions in the section titled Loading the Concentrate 3 Select Prime on the Function Selector Switch and Run on the Mode Selector Switch 4 Close the dispenser door 5 Place a container under the appropriate dispense ti...

Страница 20: ...e Function Selector Switch to Normal and the Mode Selector Switch to Run 1 Pull and Hold Dispense Mode Cup at a time a Place cup on the cup tray beneath the desired dispensing tip For a large container flip the cup tray up and place the container on top of the drip tray b Pull and Hold the corresponding dispense handle until the cup or other container is full c Remove cup or container 2 Portion Di...

Страница 21: ... quit dispensing then remove the container Push and Hold Dispensing of Coffee or Hot Water Push and Hold Dispense Mode See Programming Functions on how to set the Preset Volume to Zero a Place cup on the cup tray beneath the desired dispensing tip For a large container flip the cup tray up and place the container on top of the drip tray b Push and hold the corresponding dispense switch until the c...

Страница 22: ... Remove the bag connector from the product box and disassemble or prop open the internal valve to allow free flow of product through the connector NOTE Cutting the mating fittings from an empty bag makes an excellent free flowing connector for this purpose 4 Place the bag connector into a one gallon 3 8 liter container of warm soapy tap water 140 F 60 C 5 Place an empty container under dispense ti...

Страница 23: ...iner plate aside 3 Depress the tension screw and remove it from the notch in the pump housing releasing the spring tension on the pump band 4 Open the compression band and gently pull the pump tube from around the pump s rotor 5 Inspect the pump bands for signs of wear Replace if necessary 6 Apply lubricant BUNN O MATIC part number M2531 0001 to the new pump tubing s rotor side 7 Insert the tube o...

Страница 24: ...container with a minimum of five gallon capacity 5 Make sure drain clamp is closed Then remove drain plug 6 Direct tube into sink or container and open drain clamp Continue draining tank until ALL of the water is out Be very careful with the draining water because it can be very hot 7 Close drain clamp insert drain plug place drain tube back into machine and replace splash panel Note The dispenser...

Страница 25: ...hould perform inspection testing and repair of electrical equipment Shortingtheterminalsortheapplicationofexternalvoltagestoelectroniccomponentsmayresultincomponent or circuit board failure Intermittent operation of electronic circuit boards is unlikely board failure will normally be permanent If an intermittent condition is encountered the cause will likely be a switch contact or a loose wire con...

Страница 26: ...ty BIB Warning Concentrate BIB is Empty BIB Not properly connected Tubing kinked or blocked Empty BIB warning set too high Left Refill LED ON Left BIB Empty Replace BIB see loading the Concentrate Left Dispenser will not operate Left Refill LED FLASHING Empty BIB Lockout Enabled Replace BIB see loading the Concentrate Remove the lower splash guard to view the Fault message See Diagnostics After th...

Страница 27: ...cted for the Right Hand Dispenser is too large for the application 2 The Ratio selected for the Right Hand Dispenser is not correct for the application 1 Concentrate BIB is Empty 2 BIB Not properly connected 3 Tubing kinked or blocked 4 Empty BIB Warning set too high 1 Concentrate BIB is Empty 2 BIB Not properly connected 3 Tubing kinked or blocked 4 Empty BIB Warning set too high Refer to Selecti...

Страница 28: ...F RANGE CHECK WIRE FOR SHORTS Service Required Service Required Service Required Service Required Service Required Service Required Check water supply shut off Service Required Service Required Service Required Service Required 1 Refill valve stuck open 2 Faulty refill probe 3 Faulty overflow switch 1 Tank Heater failure 2 Triac failure 3 Tank Temp sensor failure 1 Water shut off to dispenser 2 In...

Страница 29: ... other 2 Evaporator temperature too high 1 Motor failure 2 RPM Sensor failure 1 Motor failure 2 RPM Sensor failure 1 Cabinet circulating fan failure 2 Ice build up on evaporator coils 3 Evaporator sensor failure 1 Air intake filter clogged 2 Wiring failure 3 Compressor failure 1 Concentrate buildup on probes 2 Machine dispensing continously 3 Water flowing continously 1 Invalid wire harness config...

Страница 30: ...ipping Discard the concentrate collected 4 Select NORMAL on the Function Selector Switch 5 Locate the programming module and use the Arrow Down key to scroll through LCD screens until CAL LEFT SIDE appears and press the YES button 6 The CAL LEFT PUMP menu screen will be displayed Place a 50 ml graduated cylinder under Left Dispense Tip and activate the Left Dispenser momentarily The dispenser will...

Страница 31: ...to the amount measured in STEP 16 21 Press Down Arrow Key again to exit the CAL LEFT SIDE functions Calibrating the Right Side Dispenser Repeat STEPS 1 21 above for the CAL RIGHT SIDE menus Field Calibration of the Concentrate Pumps Dispenser Flow Rates Continued Field Calibrating the Hot Water Flow Rate 1 Locate the programming module and use the Arrow Down key to scroll through the LCD screen un...

Страница 32: ... 1 Remove the lower splash guard assembly to access the digital programming module with LCD display 2 Open the cabinet door and set the Function Switch to the Rinse position Close the door 3 Place a large container under the Left dispenser tip then activate and hold the left dispenser 4 Dispense long enough to rinse all the concentrate out of the mix chamber and for the Conductance reading to stab...

Страница 33: ...LK BRN WHI BRN WHI ORN BLU PNK BLK BLK VIO VIO BLK RED BLK BLK BLK GRN BRN BLK BRN BLK BLU BLK BLU BLK WHI GRY WHI GRY WHI GRY WHI RED WHI BLU WHI YEL WHI ORN t BLK BLK BLK BLK RED RED RED RED BLK BLK BLK BLK BLK BLK BLK WHI BLU J1 1 J1 5 J1 10 J1 16 S W I T C H A N D L E D B O A R D GRN ORN TAN RED BLK WHI GRN WHI GRN BLK WHI BLK WHI GRY WHI VIO WHI YEL RED BLK ORN BLK RED WHI BLU WHI BLU BLK BLK...

Страница 34: ... BLK BLK BLK GRN BRN BLK BRN BLK BLU BLK BLU BLK WHI GRY WHI GRY WHI GRY WHI RED WHI BLU WHI YEL WHI ORN t BLK BLK BLK BLK RED RED RED RED BLK BLK BLK BLK BLK BLK BLK WHI BLU J1 1 J1 5 J1 10 J1 16 S W I T C H A N D L E D B O A R D GRN ORN TAN RED BLK WHI GRN WHI GRN BLK WHI BLK WHI GRY WHI VIO WHI YEL RED BLK ORN BLK RED WHI BLU WHI BLU BLK BLK 14 BLK 14 BLK 14 BLK BLK 14 BLU 14 BLU 14 RED 14 RED ...

Страница 35: ... ORN t BLK BLK BLK BLK RED RED RED RED BLK BLK BLK BLK BLK BLK BLK WHI BLU J1 1 J1 5 J1 10 J1 16 GRN ORN TAN RED BLK WHI GRN WHI GRN BLK WHI BLK WHI GRY WHI VIO WHI YEL RED BLK ORN BLK RED WHI BLU WHI BLU BLK BLK BLK BLK BLK 10 AMP 10 AMP BLK 14 BLK 14 BLU 14 BLU 14 RED 14 RED 14 WHI WHI WHI RED RIGHT RPM SENSOR LEFT RPM SENSOR RED BLK BLK RED BLK GRN GRN SELECTOR SWITCH SELECTOR SWITCH RINSE PRIM...

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