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BUNN
TECHNICAL TRAINING
®
AutoPOD™

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Summary of Contents for Bunn AutoPOD

  • Page 1 BUNN TECHNICAL TRAINING ® AutoPOD™...
  • Page 2: Table Of Contents

    Warning Messages ......................24 Error Messages ........................24 Tank Draining ........................25 Hot Water Tank Removal ....................26 Brew Tank Removal ......................26 Level 3 Programming ......................27 Triac Map ..........................28 © 2009 Bunn-O-Matic Corporation. All Rights Reserved Rev. B...
  • Page 3: Unit 1: Installation

    The learner will be able to locate and document the serial number. The learner will be able to hook up the water supply to the AutoPOD™ and AutoPOD™ with Pump. The learner will be able to power up and perform the initial set-up of the brewer.
  • Page 4: Site Requirements

    Site Requirements Space • AutoPOD™ is only for indoor use on a sturdy counter or shelf • AutoPOD™ dimensions is 15.8”H x 9.7” W x 15.2” D (40.1cm H x 24.6cm W x 38.6cm D) • Weight 30 lbs Water Treatment • Sediment filtration to reduce large particles...
  • Page 5: Autopod™ With Pump

    AutoPOD™ with Pump Model Pressure regulator with fittings secure to the .75-11.5 NH (Hose Thread) fitting at the rear of the brewer and turn on the water supply Electrical Install Step 1: Plug-in the attached cordset from the brewer into a conventional 120VAC outlet. Step 2: The brewer LCD (Liquid Crystal Display) will light up and the brewer is ready for the initial setup.
  • Page 6: Unit 2: Setup

    etup Unit Objectives Given a realistic scenario depicting a new site install, the learner will be able to install and setup the brewer for customer turnover without error. Given an installed machine, all the necessary tools and safety equipment, the learner will be able to set the machine up for initial operation.
  • Page 7: User Interface

    The switch decal is nothing more than a overlay with description of the buttons. The user interface allows the user to program the brewer for product recipes and begin the brew process with the selection of large or small cup. The AutoPOD™ brewer also gives the user the option of a Hot Water dispense. Switch Operation “Programming”...
  • Page 8: Programming Menus

    Hot H2O Temp HOT H2O TEMP: 200 Adjust tank temperature 185º F to 200º F (85º C to 96º C). DONE H2O Ready H2O READY: 195 Sets the minimum temperature allowable to start a hot water dispense. DONE AutoPOD™ Training Manual...
  • Page 9: Brew Tank

    4500 brews for next PM countdown. SERVICE TOOLS ? Service Tools Allows testing of load components and switches. It should be only used by trained tech nicians. FACTORY DEFAULTS Factory Defaults Resets all brew settings, calibrations back to factory presets. Bunn-O-Matic Corporation...
  • Page 10: Calibrating Flow Rate

    Step 3: Depress the Hot Water button one time and the brewer will start a timed hot water dispense. During this short time the display will scroll the, CAUTION HOT WATER, message and stop displaying the message when the dis- pense is finished. The screen will now say, ENTER OZ 10.0. Enter the captured ounces and depress DONE button. ENTER OZ : 10.0 DONE AutoPOD™ Training Manual...
  • Page 11: Coffee Brewing

    10 ounces of water. The display will revert back to the original menu, CALIBRATE MAXIMUM H2O TIME?, to repeat test if needed. Coffee Brewing Process Step 1: Home screen will display a total of three messages. AutoPod Brewer Place Cup Press Open Ready To Brew...
  • Page 12: Unit 3: Machine Composition

    achine oMposition Unit Objectives Given a realistic scenario in which the learner has access to the machine’s internal components the learner will understand the composition and functions of the brewer. Given a realistic scenario requiring the learner to access the internal components of the machine the learner will be able to remove the front panel and top cover.
  • Page 13: Exterior Overview

    Accessing the Inside of the Brewer The majority of service work done to the AutoPOD™ brewer will require the service technician to access the inside of the unit. The brewer has three removable panels to facilitate access- the main housing, top cover and rear panel.
  • Page 14: Machine Function And Operations

    Dispensing System The AutoPOD™ has two different dispense systems, one for hot water dispense and the other for a dispense during brewing. Hot Water Dispense The hot water dispense system consists of: • 20 ounce hot water tank with element...
  • Page 15: Brew Tank

    During a dispense water enters the inlet valve and is regulated by .175 flow control and enters a booster pump, (Not all AutoPOD™ units have a booster pump; product number specific), which is capable of 50psi. The pump is intended for low water pressure applications. With some heavier/finer grind pods that require more pressure to brew, if the pressure gets below 25-30psi they will brew slower. The pump will boost the incoming water pressure to a high enough level to brew normally. These pumps can create 50+psi, but the pod will determine the actual brewing pres- sure.
  • Page 16: Heating System

    Step 3: After brewing is complete, the pod holder rotates further back and down to coffee pod eject position. The coffee pod eject has an option of making a single or double attempt of ejecting the pod in the programming menu. AutoPOD™ Training Manual...
  • Page 17 Step 11: The Ejector assembly is now ready to be removed. The Ejector is attached to the main trunk frame by 1 standard screw located on each outer side of the tanks. You will need to grab the upper sprayhead assembly while removing the screws keeping the Ejector from falling free. Bunn-O-Matic Corporation...
  • Page 18: Unit 4: Preventive Maintenance

    reventive aintenance Unit Objectives Given a realistic scenario depicting a machine requiring a preventive maintenance, the learner will be able to identify which elements of a component need to be serviced without error. Given a machine, all the necessary tools and safety equipment, the learner will be able to identify the components that need to be serviced for the PM.
  • Page 19: Preventive Maintenance

    □ Re-install sprayhead with gasket. Make sure seal is installed with the ridge facing up □ Remove and clean pod screen assembly of coffee oil build up. Replace pod screen if missing (BUNN P/N: 40806.1000) Step 2: Clean the stream guide bowl □...
  • Page 20 □ Access programming and go to CALIBRATE FLOW ? menu □ Depress YES button □ Place graduated measuring cup (minimum 10 ounces) under coffee outlet □ Follow the instruction on the display □ After dispense finishes, read number of ounces and enter that amount into brewer using the +/- switches, then press DONE to set the volume into memory AutoPOD™ Training Manual...
  • Page 21 □ Follow “Operation” procedure in the Installation and Operating Guide for coffee brewing and hot water dispensing □ Check levels against large and small brew ounce settings in the program menus “Brew OZ. A & Brew Oz B” □ If ounces are off then repeat the calibration procedure in step 7 □ Check H2O dispense level for 10 ounce dispense □ If ounces are off then repeat the calibration procedure in step 8 Bunn-O-Matic Corporation...
  • Page 22: Unit 5: Troubleshooting

    roubleshooting Unit Objectives Given a realistic scenario depicting one of several possible machine malfunctions, the learner will be able to effectively troubleshoot, diagnose and repair the malfunction before returning the machine to normal opera- tion. Given a machine displaying an error or warning message, all the necessary tools and safety equip ment, the learner will be able to access the software and use “Service Tools”...
  • Page 23: Service Tools

    Troubleshooting and Repair The AutoPOD™ brewer features on-board troubleshooting. Since all of the machine’s components are controlled or activated by the control board you can activate and test load components individually from the user interface to test the inputs. This allows you to listen to solenoid valves opening, observing the flow of water, switches operating, sensors operat- ing, motor movement or test to see if a component is receiving voltage using a meter.
  • Page 24: Index Motor

    MOTOR INDEX MOTOR INDEX MOTOR DUMP NEXT LOAD DUMP NEXT LOAD DUMP NEXT LOAD INDEX MOTOR INDEX MOTOR DUMP NEXT LOAD DUMP NEXT LOAD Water Inlet The water inlet test screen when activated will allow water to flow out the brew tank sprayhead outlet and display increasing flow count number at the same time. The flow count number is the signal input from the metering pulses of the volumetric meter (flow meter). WATER INLET 0 WATER INLET 657 NEXT NEXT AutoPOD™ Training Manual...
  • Page 25: Warning Messages

    (90psi) a factory set (50psi) pressure regulator can be purchased from Bunn-O-Matic. The second variable you need to keep in mind is the product itself. The weight and grind of the product is also a variable in determining the pressure. Even though you have moderate high incoming pressure of 70psi, you could still activate the pressure switch because of the water not being able to push through quick enough causing back pressure to build up above the coffee and back to the pressure switch.
  • Page 26: Tank Draining

    Step 9: Carefully clamp hose A. Select START. Step 10: When brew tank blowout mode is finished, select NEXT. Step 11: Carefully clamp the Hot Water hose B. Select START. Step 12: When tanks are empty, disconnect power to the brewer. Step 13: Replace the top cover and tighten screws. AutoPOD™ Training Manual...
  • Page 27: Hot Water Tank Removal

    Step 3: Drain tank by following procedures written in the Installation and Operating Guide or disconnect snap clamp from braided tube with the thermistor and remove braided tube with thermistor from the tank fitting. Turn brewer over sink and water will drain out of the tank slowly. Step 4: Position brewer onto countertop with the rear facing you and tilt the machine forward until it rests on the front edge bottom. Bunn-O-Matic Corporation...
  • Page 28: Level 3 Programming

    The type of thermistor used in early and late AutoPOD™ model has a different default number. If you select a probe type between metal and plastic this will automati cally set the default number for the “Relay Off After Brew”...
  • Page 29: Triac Map

    Triac Map 1. Output to heater relay contacts (TH1) 2. Hot water solenoid (TH2) 3. Brew solenoid (TH4) 4. Optional booster pump (TH3) Bunn-O-Matic Corporation...

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