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™
GRINDMASTER CORPORATION
Liquid Coffee Dispenser
Operation and Instruction Manual
for
LCD-2A (Ambient Cabinet)
& LCD-2R (Refrigerated Cabinet)
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . .2
User Replaceable Parts . . . . . . . . . . . . . . .3
Warning Labels . . . . . . . . . . . . . . . . . . . . . .4
Installation . . . . . . . . . . . . . . . . . . . . . . . . .5
How to Dispense a Cup of Coffee . . . . . . . . . .7
User Programming Instructions . . . . . .
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Introduction The Grindmaster-Cecilware Liquid Coffee Dispensers (LCD-2A) and the Liquid Coffee Chilled Dispenser (LCD-2R) deliver two types of coffee made from liquid concentrate plus hot water. • The dispenser can be set up for continuous draw (by the cup) for self-serve applications, or portion-control to fill carafes and decanters for wait staff. The standard machine allows for (2) portion sizes per dispense head with the use of a hidden override switch located on the bottom left side of t
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User Replaceable Parts 5 . (
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Page 3 Model LCD-2R and LCD-2A
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Warning Labels The following warning labels were on your dispenser when it was shipped from the factory. They should remain on your dispenser in good, readable condition at all times. If one of your labels is missing or damaged, order a replace- ment label immediately. Part #62981, Located on lower splash panel on front of dispenser Part #61321, Located behind the drip pan on the front of the dispenser Part #61319, Located on the outside on the back of the dispenser and on the outside on the
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Installation Water Inlet Connection: The National Sanitation Foundation requires the following for an NSF approved water hook-up: 1. A quick disconnect water connection or enough coiled tubing so that the machine can be moved for cleaning underneath. 2. An approved backflow prevention device, such as a double check valve to be installed between the machine and water supply. A 3/8" male flare adapter is provided on the back of the machine for hook-up to water supply. On uni
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Installation (cont.) Electrical Hook-up: Ensure water connection is made to machine before proceeding and water source is turned ON. NOTE: Installation must be performed by a qualified electrician and must conform to all local and national codes. NOTE: Machine is factory configured for field wiring and power cord is not provided. If the machine is intended to configured to 120 volt operation, a conversion kit 63578 is available for the addition of a proper 120 volt power cord and a seria
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Installation (cont.) 9. After the water tank has completed the fill cycle, the display located on the front door of the dispenser should indicate that the heating element has been activated. Allow 10-60 minutes for the water tank to reach operating temperature. (Note: Heatup time is dependent on water inlet temperature and input wattage to the machine.) Bag-in-Box Hook-up 1. Place cups under dispense spouts to catch concentrate and water for priming and dispense operations to follow. 2. Place
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User Programming Instructions refer to Figure C Setup Mode Open the door and insert Setup key into keyswitch above cooler compartment. Turn key ¼ turn clock- wise, the display on front of door will say ‘Setup Mode, Press Enter’. The two ‘Prime’ buttons and the Flush button now become the programming buttons: Prime 1 = UP, Prime 2 = DOWN, Flush = ENTER Press the Enter button (flush). The user now has access to the following options: Coffee ratio: The user can adjust the strength of the regular
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“Engineer” Program Settings TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN ONLY Engineer Mode To access engineer mode go into Setup mode, when the screen says ‘Setup Mode, Press Enter’ press the Hot Water tap – the display will now say ‘Engineer Mode, Press Enter’. The engineer has access to the following options: Max Temp [181F]: Sets the maximum temperature of the boiler. Set Lockout Temp [161F]: Sets the selection lockout temperature. Power Setting [230v AC]: The input mains voltage has
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“Engineer” Program Settings TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN ONLY Engineer Mode (cont.) No prod, Stop Sel [Disabled]: No product, stop Selection. If enabled, when the coffee goes low during a dispense it will stop, giving a low measure. If disabled it will continue with the dispense even if the coffee goes low, then lock out once the dispense is finished. Calibrate Temp: This is the calibration setting for the boiler thermistor. Calibrate Disp Temp: This is the calibration sett
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“Engineer” Program Settings TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN ONLY Machine Fault Codes (cont.) 6: Water overheat The thermistor has detected the water is too hot. The boiler element contactor may have failed short circuit. The machine may be running high Wattage Power with a preheater. 7: Leak If the machine refills 15 times without a dispense the machine assumes a leak. A water outlet valve may be leaking. 8: Inlet valve leak Not available with single inlet valve machines 9: T
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“Engineer” Program Settings TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN ONLY Programming Guide for Calibration of Mix Ratio (cont.) To check water flow rate and calibrate the actual mix ratio adjustment to match the programming mix ratio: IMPORTANT NOTE REGARDING PORTION OVERRIDE BUTTON: The default time setting for the override portion is 100 which equates to 10.0 seconds. The override dispense volume should be set to 100 (= 10.0 seconds) for calibration purpos- es. Follow the program
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“Engineer” Program Settings TO BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN ONLY Programming Guide for Calibration of Mix Ratio (cont.) Worksheet Average water volume / Average concentrate volume = mix ratio Example: 600 ml water / 20 ml concentrate = 30:1 ratio Dispensed Water 1. _____________ ml 2. _____________ ml 3. _____________ ml Average: _____________ ml Water Flow Rate = Average ml / Override Portion Time = ml/second Water Flow Rate = _____________ ml / _____________ seconds = ______
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Weekly Cleaning Instructions refer to Figure E NOTE: Some bag-in-box connectors require some disassembly for cleaning and sanitizing NOTE: Some bag-in-box connectors requires some extra steps for cleaning and sanitizing. 1. Remove fitting cap (a) from bag-in-box quick disconnect fitting if applicable. 2. Then, if equipped with an internal check valve follow the following steps: 3. For QCD (Liqui-Box) fitting remove fitting cap (a) then remove the internal check valve parts by using the edge of
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Service and Cleaning Draining the Tank Always empty the tank before shipping. WARNING: Draining of tank should be performed by a qualified service technician. The tank contains 4 gallons (15.1 litre) of very hot water. May cause severe burns. 1. Prepare a minimum 5 gallon (17.5 litre) heat resistant container to drain the tank water into. 2. Unplug the machine. 3. Remove the drain tray and front access panel. 4. Locate the silicone drain hose. Put the end of the drain hose into the buck
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Troubleshooting Guide A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problem encountered. If the problem remains after exhausting the troubleshooting steps, contact Grindmaster- Cecilware Technical Service Department (800-695-4500, 8am-6pm, M-F). • Only qualified service personnel should perform inspection, testing, and repair of electrical equipment • Intermittent operation of electronic circuit boards is unlikely. Board failure will normally be
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Troubleshooting Guide (cont.) WARNING: Risk of electrical shock. Disconnect power before removal of any machine access panels. Problem/Cause Remedy MACHINE DOES NOT POWER UP Machine is unplugged Ensure machine is plugged into power supply Power switch in OFF position Flip power switch to “ON” position (located at lower right corner of back of machine); Blue LCD on door should be illuminated when ON. Branch circuit breaker has tripped Reset circuit breaker at service supply panel Power supply
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Troubleshooting Guide (cont.) Problem/Cause Remedy LCD DISPLAY INDICATES “OVERFLOW” NOTE: Water must be drained from the tank below the float switch after the fault condition is diagnosed. Water level probe sensitivity is set too low Increase sensitivity of water fill circuit (see programming notes: Water Level Trip) Faulty or corroded level probe Remove level probe and grommet. Remove any scale or miner- al buildup and reassemble. Faulty level control circuit wiring Ensure both probe and probe
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Wiring Diagram
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Grindmaster® Coffee Grinders and Brewers � PrecisionBrew™ Brewing Systems � Espressimo® Espresso Machines Crathco® Hot Beverage Dispensers � Crathco® Cold and Frozen Beverage Dispensers � AMW Coffee and Tea Systems Tel (502) 425-4776 � Fax (502) 425-4664 � 1-800-695-4500 (USA & Canada only) P.O. Box 35020 � Louisville, KY 40232 � USA www.grindmaster.com � email: info@grindmaster.com © Grindmaster Corporation, 2009 0910 Form # AM-328-04 PRINTED IN USA Part # 63543
