Bunn LCC-2, LCA-2 PC manual Electrical Requirements, Field Wiring Terminal Block Diagram

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ELECTRICAL REQUIREMENTS

CAUTION: The dispenser must remain disconnected from the power source until specified in Electrical Hook- Up.

The LCA-2 and LCC-2 dispensers are supplied with a 120-volt / 15 Amp cord set and require a 2-wire, grounded, individual branch circuit rated for 120 volts AC, 15 amp, single phase, 60Hz. The mating connector must be a NEMA 5-15R.

The LCA-2C and LCC-2C dispensers are supplied with a 120-volt / 20 Amp cord set and require a 2-wire, grounded, individual branch circuit rated for 120 volts AC, 20 amp, single phase, 60Hz. The mating connector must be a NEMA 5-20R.

These dispensers can be Field Wired for 208 or 240 volt applications. This requires a 2 or 3-wire, grounded, individual branch circuit rated for 208/240 volts AC, 30 amp, single phase, 60 Hz.

NOTE: The internal terminal block must be rewired for 208/240 applications, (see Optional Field Wiring Diagram).

FIELD WIRING TERMINAL BLOCK DIAGRAM

Models without Master ON/OFF Switch

 

 

HEATER RED

 

 

 

 

HEATER RED

 

10A. FUSE - WHITE

 

HEATER RED

120V A.C.

 

10A. FUSE - WHITE

 

 

208 or

10A. FUSE - WHITE

208 or

 

 

 

240V A.C.

 

240V A.C.

10A. FUSE - BLACK

120V A.C.

10A. FUSE - BLACK

 

10A. FUSE - BLACK

120V A.C.

 

LIMIT SW. - BLACK

Fig. 1

LIMIT SW. - BLACK

Fig. 2

LIMIT SW. - BLACK

Fig. 3

 

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.For 208 - 240V A.C./2-Wire per Fig. 2: Move both the Red-Heater wire and the White-Fuse wire to the Top Red Terminal as shown.

3.For 120/208 - 240V A.C./3-Wire per Fig. 3: Move the Red Heater wire to the Top Red Terminal as shown.

FIELD WIRING TERMINAL BLOCK DIAGRAM

Models with Master ON/OFF Switch

RED

TO MASTER

ON/OFF120V A.C.

SWITCH

BLACK

Fig. 1

RED

 

TO MASTER

208 or

ON/OFF

240V A.C.

SWITCH

 

BLACK

Fig. 2

RED

 

 

TO MASTER

120V A.C.

208 or

ON/OFF

240V A.C.

SWITCH

120V A.C.

 

BLACK

Fig. 3

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.For 208 - 240V A.C./2-Wire per Fig. 2.

3.For 120/208 - 240V A.C./3-Wire per Fig. 3.

34766 010407

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Contents Post Office BOX SPRINGFIELD, Illinois Phone 217 529-6601 FAX 217Contents BUNN-O-MATIC Commercial Product WarrantyIntroduction User Notices00656.0000 28181.0003Field Wiring Terminal Block Diagram Models without Master ON/OFF SwitchModels with Master ON/OFF Switch Electrical RequirementsPlumbing Requirements Initial SET-UPElectrical HOOK-UP Plumbing HOOK-UPRemoving the restrictors Setting Dispenser Flow RateReprogramming the Dispenser Flow Rate Selecting the Correct Pump Tubing DispenseRate Oz/sec 16 I.D. TubingOperating Controls and Interface 1513Initial Fill & Heat Rinse Alarm Feature FlavorGard FeatureAlarm Mode BIB Empty Lockout Feature Brew Temperature Lockout FeatureProgramming the Dispenser Menu Screen Action Description Tank Temp351 + Exit 3/16LF Disp Volume RT Disp VolumeMenu Screen Lock Flavor ? Exit YES Flavors Locked 0oz +Menu Screen Tank Temp Exit +Ready Temp Cabinet TempMenu Screen Rinse Lockout ? No Exit YESBrew Lockout ? No Exit YES Action DescriptionMenu Screen Action CAL Right Pump ? Pull DispenserCAL RT WTR Flow Pull Dispenser CAL Right Side ? Exit YESWTR Start Delay WTR Stop DelayTest LED’S ? No Exit YES Test Switches ? Factory Defaults No YES Action DescriptionLoading the Concentrate Priming the Concentrate LinesOperating the Pull & Hold Dispenser Filling Cambros or other large containersOperating the Preset Portion Control Dispenser Models LCA-2 PC, LCA-2C PC, LCA-2A PCCleaning & Preventative Maintenance General Cleaning and Sanitizing Procedures Daily RinsingDaily Parts Washing Weekly SanitizingReplacing the Pump Tubing Draining the HOT Water Tank Power LED OFF TroubleshootingFront Panel LED Display Messages Internal Fault Left Refill LED onConcentrate BIB is Empty Empty BIB WarningTroubleshooting Dispenser Diagnostics-LCD Display BIB Not properly connected Check BIB Connector FittingsTubing kinked or blocked Check Tubing installation Possible CauseScreen Displayed Possible Cause Evaporator temperature too high Service Required Motor failure Service RequiredRPM Sensor failure Service Required Cabinet circulating fan failure Service RequiredCalibrating the Left Side Dispenser Field Calibrating the Hot Water Flow Rate Oz/sec 53 ml/sec w/ flow restrictorOz/sec 74 ml/sec w/o flow restrictor Calibrating the Right Side DispenserField Calibrating the Empty BIB Warning Calibrating The Empty BIB ThresholdLCA-2/LCA-2, PC/LCA-2C/LCA-2C, PC/LCC-2/LCC-2C Schematic Wiring Diagram Schematic Wiring Diagram LCC-2A/LCA-2A/LCA-2A, PC
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LCA-2 PC, LCA-2, LCC-2 specifications

The Bunn LCC-2, LCA-2 PC, and LCA-2A are high-performance commercial coffee brewers designed to meet the demands of busy coffee shops, restaurants, and other food service establishments. These machines are known for their efficiency, durability, and advanced brewing technologies, making them popular choices in the industry.

Starting with the Bunn LCC-2, this brewer is recognized for its compact design and ease of use. It has a brewing capacity of up to 3.8 gallons per hour, ensuring that coffee is ready quickly during peak hours. The LCC-2 uses a pour-over brewing method, which means that water is heated to the ideal brewing temperature and then poured over coffee grounds for optimal extraction. One of its standout features is the digital temperature control, which allows operators to adjust brewing temperatures easily for different coffee types. Additionally, the Bunn LCC-2 features a stainless steel construction that enhances durability and provides a sleek look for any commercial kitchen.

Moving on to the Bunn LCA-2 PC, this model includes programmable capabilities, making it perfect for establishments that require consistency and convenience. The LCA-2 PC allows users to preset brewing schedules and customize brew cycles, ensuring that each pot of coffee meets specific flavor profiles. This model is designed with a large-capacity brewing system that can produce up to 7.5 gallons of coffee per hour, making it an ideal choice for high-demand environments. It also boasts a built-in hot water faucet, which provides instant hot water for other beverages or culinary applications. The LCA-2 PC's advanced brewing automation helps maintain optimal brew quality while minimizing waste.

Lastly, the Bunn LCA-2A is an advanced version that focuses on automation and efficiency. This brewer features a state-of-the-art digital brew timer, which allows precise control over brew times, leading to consistent flavor extraction. The LCA-2A also integrates with Bunn’s patented brewWISE technology, which tracks brew recipes and monitors performance. The intuitive interface allows for easy operation, even for staff who may be less experienced with coffee brewing. With a capacity of up to 4 gallons per hour and a durable stainless steel frame, the LCA-2A ensures longevity while delivering exceptional coffee.

In summary, the Bunn LCC-2, LCA-2 PC, and LCA-2A represent the pinnacle of commercial coffee brewing technology. Their unique features, including programmable settings, large brewing capacities, and durable constructions, cater to the diverse needs of the food service industry. Each model emphasizes convenience, flexibility, and quality, making them invaluable assets in any professional coffee environment.