Instruction/ maintenance manual of the product LCA-2 LP Bunn
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2 BUNN-O-MA TIC COMMERCIAL PRODUCT W ARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) All equipment other than as specified below: 2 years parts and 1 year labor . 2) Electronic circuit and/or control boards: parts and labor for 3 years.
3 Warranty .................................................................................................................................................2 User Notices ................................................................................
4 USER NOTICES Carefully read and follow all notices on the equipment and in this manual. They were written for your protec- tion. All notices are to be kept in good condition.
5 ELECTRICAL REQUIREMENTS WARNING - If the power cord is ever damaged, it must be replaced by the manufacturer or its ser vice agent with a special cord available from the manufacturer or its service agent in order to avoid a hazard.
6 INITIAL SET -UP NOTE: The LCA-2 LP weighs approximately 70 lbs. (32 kg). If necessar y , use more than one person when lifting or moving the dispenser . 1. Cut the plastic bands and remove the top box. 2. Locate and remove the parts box from top of packaging and set aside.
7 OPERA TING CONTROLS AND INTERF ACE 1. Dispense Switches: Push to dispense product. 2. Stop Switch: Momentary switch stops all dispense functions. 3. Hot Water Switch: Push and Hold switch to dispense hot water from the center dispense tip. 4. Carafe Switch: Momentarily pushed to select the Carafe dispense Volume.
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9 INST ALLING PUMP TUBING INST ALLING THE PUMP TUBING Refer to the T ube Replacement Instruction inside the Cabinet door . 1. Loosen the thumbscrew securing the tubing retainer plate to the pump body and set the retainer plate aside.
10 INITIAL FILL & HEA T 1. Select Normal on the Function Selector Switch and Run on the Mode Selector Switch. 2. Confirm the water supply is on. 3. Connect the dispenser to the power source. The Red POWER LED will illuminate and water will begin flowing into the tank.
11 Rinse Alarm Feature Periodic rinsing of the mix chambers and dispense tips is essential for proper maintenance and optimum performance of the dispenser .
12 PROGRAMMING THE DISPENSER Open the dispenser door to access the digital programming module with LED display . T wo basic modes are available to the operator: Display Mode and Program Mode. T o enter the Display Mode, Set the RUN/NIGHT/PROGRAM Switch to the RUN position.
13 MENU (-) (+) 0 6 0.0.0 Regular Dispense T otal Di spl ays T ota l Re gul ar Cof fee Dis pen sed (XX.X Gal) Decaf Dispense T otal Displays T otal Decaf Coffee Dispensed (XX.X Gal) MENU (-) (+) 0 7 0.0.0 Displays Software Version # - Exits T o Home View After 3 Seconds.
14 PROGRAMMING THE DISPENSER (Cont.) Program Mode : Used to change or enter new set-up values. T o enter the Program Mode , Set the RUN/NIGHT/PROGRAM Switch to the PROGRAM position, the unit will display “__PPP” to indicate it is in the Program Mode.
15 Right (Decaf) Dispense T otal Reset T otal to Zero (00.0 Gal) MENU (-) (+) P 7 0.0 LCD DISPLA Y PROGRAM MODE DESCRIPTION PROGRAMMING THE DISPENSER (Cont.) Program Mode (Continued) Empty Product Threshold Set Conductance Threshold Default = 600 Range = 100 Min / 900 Max T o check Conductance of Hot Water , view the display while rinsing .
16 PRIMING THE CONCENTRA TE LINES 1. Open the dispenser door . 2. Select Prime on the Function Selector Switch and Run on the Mode Selector Switch. 3. Close the dispenser door . 4. Place a container under the dispense tip. 5. Activate the appropriate dispenser until concentrate flows from the dispense nozzle.
17 OPERA TING THE DISPENSER Set the Function Selector Switch to “Normal” and the Mode Selector Switch to “Run .” 1A. Push and Hold Dispense Mode (Cup at a time). See Programming Functions to set this amount. a. Place cup on the tray beneath the dispensing tip.
18 CLEANING & PREVENT A TIVE MAINTENANCE General Cleaning and Sanitizing Procedures Note: The BUNN ® LCA-2 LP dispenser incorporates a “user selectable” rinse reminder feature, which lights the Rinse LED on the front panel when it is time to rinse.
19 REPLACING THE PUMP TUBING The pumps and tubing used in the dispenser are designed to give maximum per formance and long life. However , the tubes are a wear item and must be replaced periodically . How long the tubes last is dependent on usage and properties of the concentrate.
20 LCD DISPLA Y CALIBRA TION MODE DESCRIPTION CALIBRA TING THE DISPENSER Left (Regular) Pump Cal. Set PR IM E-N ORM AL -RI NS E s wit ch to PRIME position. Press and hold Regular Dispense Switch until pump st op s (20 sec. ) Refe r to Fie ld Cal ibra tion of the Concentrate Pumps.
21 CALIBRA TING THE DISPENSER (Cont.) LCD DISPLA Y CALIBRA TION MODE DESCRIPTION Right (Decaf) Water Rate Set PRIME-NORMAL-RINSE switch to RINSE position. Press and hold Decaf Dispense Switch until flow stops (20 sec.) Refer to Field Calibration of the Concentrate Pumps.
22 LED DISPLA Y ERROR DESCRIPTION/TROUBLESHOOTING TROUBLESHOOTING GUIDE Error Codes When an error has occurred, all Door LED’ s will be flashing. Open the Door to access the LED Display and record the Error Code. Refer to the list of Error Codes below to identify the problem.
23 TROUBLESHOOTING GUIDE (Cont.) Error Codes (Continued) LED DISPLA Y ERROR DESCRIPTION/TROUBLESHOOTING T ank T emp Sensor Failed Sensor Reading Out Of Range (High or Low). Faulty Sensor wiring. MENU (-) (+) E C 0 0 7 Switch Board Failure Una bl e T o C om mun ic at e W it h Th e Switch Board In The Door .
24 (Continued Next Page) Field Calibration of the Concentrate Pumps & Dispenser Flow Rates The factory set default values for the Pump & Dispenser Flow Rates are ver y accurate and typically do not need to be field calibrated.
25 Field Calibration of the Concentrate Pumps & Dispenser Flow Rates (Continued) 4. Stop dispensing and allow the tip to stop dripping. Discard the water collected 5. Place a 1500 to 2000 ml graduated container under Left Dispense Tip. 6. Press & Hold the Regular dispense switch.
26 BLU/BLK-16 RED-22 WHT/BLK-22 WHT/BLU-22 WHT/BLU-22 WHT/BLK-22 T AN-22 M SWITCH & LED BOARD RED/BLK-18 RIGHT PUMP RPM SENSOR M LEFT PUMP RPM SENSOR WHT/RED-18 BRN/WHT -18 BRN/BLK-18 GRN RED BLK .
An important point after buying a device Bunn LCA-2 LP (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bunn LCA-2 LP yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bunn LCA-2 LP - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bunn LCA-2 LP you will learn all the available features of the product, as well as information on its operation. The information that you get Bunn LCA-2 LP will certainly help you make a decision on the purchase.
If you already are a holder of Bunn LCA-2 LP, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bunn LCA-2 LP.
However, one of the most important roles played by the user manual is to help in solving problems with Bunn LCA-2 LP. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bunn LCA-2 LP along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
