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Curtis ALPHA-D Diagnostics Manual

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Diagnostics Guide.
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Summary of Contents for Curtis ALPHA-D

  • Page 1 $9.95 Diagnostics Guide. for trained service personnel only...

  • Page 2: Table Of Contents

    CONTENTS The Basics of Installation, Brewing and Maintenance .......3-5 Installation and Setup .................3 The Basics of Brewing ................4 Care and Maintenance ................5 Programming ADS Systems (Pre-G3) ............6-9 Coffee Systems ..................6 Tea Systems ....................7 Primo Cappuccino ..................8 Programming Sleep Mode and Warmer/Quality Timer ........ 9 Diagnostic Blocks and Troubleshooting ADS Systems (Pre-G3) .....

  • Page 3: The Basics Of Installation, Brewing And Maintenance

    SETup ALL Curtis Systems Are Factory Pre-Set and Ready-to-Go for Normal Use. Generally there will not be a reason to change programming. However, should you need to make slight adjustments to meet your brewing needs, programming instructions are provided later in this manual.

  • Page 4: The Basics Of Brewing

    ThE baSiCS Of brEwiNg GEMINI® and ThermoLogic™ Systems WIThouT aN INTeRlock GRINdeR 1. Brewer should be ON. (Confirm Rear Toggle Switch position, then press ON/OFF button.) 2. Place an empty Satellite or Thermo Server on the deck. 3. Place filter and ground coffee in brew cone. Position in brewing system. 4.

  • Page 5: Care And Maintenance

    Do not use bleach or any cleaner containing chlo- rine. 3. Clean inside the decanter or airpot with a Curtis cleaning brush (Model CAB-1 or JB-1) or SOFT scouring pad. 4. Slide out brew cone. Rinse thoroughly with clean water.

  • Page 6: Programming Ads Coffee Systems (Pre-G3)

    prOgraMMiNg adS COffEE SySTEMS (prE-g3) TO ACCESS PREVENTATIVE MAINTENANCE BREW CYCLE COUNTER 0003 0050 EXAMPLE 0100 2000 2153...

  • Page 7: Tea Systems

    prOgraMMiNg adS TEa SySTEMS (prE-g3)

  • Page 8: Primo Cappuccino

    prOgraMMiNg adS priMO CappuCCiNO SySTEMS (prE-g3) PRIMO CAPPUCCINO CHANGING THE POWDER/WATER RATIO – Factory Preset to 100% (Ratio should be determined by powder mfg.) Enter the Program Mode by Pressing and HOLDING ANY TWO Buttons until Lights START Blinking; RELEASE. •...

  • Page 9: Programming Sleep Mode And Warmer/Quality Timer

    prOgraMMiNg adS SlEEp MOdE aNd warMEr/qualiTy TiMEr (prE-g3) SLEEP MODE is an energy-saving feature that, when enabled, works as follows: Two hours AFTER the last brew the system will reduce energy to the heating tank, allowing the temperature to “normalize” at 140°F. – effectively saving energy. Sleep Mode is indicated by the “sleep” light on the front control panel.

  • Page 10: Diagnostic Blocks And Troubleshooting Ads Systems (Pre-G3)

    diagNOSTiC blOCkS aNd TrOublEShOOTiNg adS SySTEMS (prE-g3) Basic knowledge of electrical circuits and test equipment is required. Caution should always be used whenever servicing equipment because of high voltages and hot water. In addition to common hand tools, the following are recommended: clamp-on amp Meter digital Multi-Tester...

  • Page 11: Control Board

    The following four items describe the operation and diagnostic method for the major control systems on Pre-Generation 3 models: 1. Control Board 3. Water Level Probe 2. Temperature Sensor 4. Membrane Switch Face Panel 1. CONTROL BOARD Each unit has a digital control board that controls all functions of the system. Primo Cappuccino™ machines have two boards: a control board in the door behind the membrane switch and a water level/heat control board in the left side cover.
  • Page 12 9. If jumping membrane connector pins on the board does not turn the unit ON, verify that there is power to the board. This is accomplished by using the appropriate schematic for the unit being serviced (See Table 1, p. 13).

  • Page 13: Membrane Switch

    TABLE 1 each coNTRol boaRd coNNecToR haS a coMMoN oN oNe SIde. When testing, use the following guidelines: Membrane Connector Pin Location: C123456 or 654321C where “C” is the common and the “number” is the pin. NOTE: Pin #1 is always adjacent to the “C” common. Wiring Harness Connector Models: Line voltage is measured across “L1” and “N.”. Individual connection models: Line voltage is measured across “black”...

  • Page 14: Heating Tank Temperature Sensor

    2. TEMPERATURE SENSOR If you suspect that your unit is not heating properly or if your ready-to-brew light indicates an error code, (three long blinks and whether short blinks), you can test the heating tank sensor to see whether it is working properly. TeSTING The SeNSoR: 1.

  • Page 15: Membrane Switch Face Panel

    Doing so may damage the membrane switch. COMpONENT – rESiSTaNCE rEfErENCE CharT HEATING TEMPERATURE LEVEL PROBE PRODUCT LINE ELEMENT SENSOR (Ambient) (Wet) alPha bReWING SYSTeMS ALPHA-D/DS/DD 9 to 12Ω 5k to 180kΩ 30k to 100kΩ aIRPoT bReWING SYSTeMS D500 9 to 12Ω 5k to 180kΩ 30k to 100kΩ D1000AP 15 to 20Ω...

  • Page 16: Caution - High Voltage

    TablE 2 – adS wiriNg harNESS/piN CallOuT fuNCTiONS CAUTION – HIGH VOLTAGE OPTO-BOARD 3o ON TRIAC RETURN N (NEUTRAL) TRIAC GATE OPTO-BOARD 3o GND PROBE GND CHASSIS INLET VALVE BREW VALVE SENSOR SENSOR...

  • Page 17: Diagnostic Blocks And Troubleshooting G3 Systems

    diagNOSTiC blOCkS aNd TrOublEShOOTiNg g3 SySTEMS THE DIAGNOSTIC BIG THREE 1. avoId aSSuMING Too quIcklY ThaT The boaRd IS The PRobleM.. 2. bReW “NoRMalIze” (RuN) ThRee TIMeS beFoRe MakING aNY PRoGRaM chaNGeS. 3. FINd The RooT cauSe. IMPORTANT A. Most equipment comes equipped with a mechanical high- limit reset thermostat mounted on the hot water tank. Be sure that this is reset by depressing the red button. B.
  • Page 18 Basic knowledge of electrical circuits and test equipment is required. Caution should always be used whenever servicing equipment because of high voltages and hot water. In addition to common hand tools, the following are recommended: clamp-on amp Meter digital Multi-Tester 120vac circuit Tester Mini Self-clipping Test lead The Digital Multi-Tester Depending on whether your multi-tester is analog or digital, you must select the appropriate range for each test.

  • Page 19: Control Systems And Modules

    CURTIS Generation 3 (G3) Electronic Control Systems must use the following diagnostic procedures for troubleshooting. The control modules contain no user serviceable parts. It is important that each sub-system in the unit be known good. This process of Testing each sub-system through the wiring harness connector and specific components will ensure the proper operation of the components.

  • Page 20: G3 Wiring Harness/Pin Callouts

    TablE 3 – g3 wiriNg harNESS/piN CallOuT fuNCTiONS CAUTION – HIGH VOLTAGE GEM Twin/Single; THERMOPRO Twin/Single PCGT UPM P1 Molex (w/Triac or Solid State Relay [SSR]) 1 120VAC HOT (BLK) 9 DUMP VALVE 1 2 120VAC HOT (BLK) 10 GEAR MOTOR 1 1 GRINDER 11 SENSOR WARMER R 20 10...

  • Page 21: Appendix: Overview Of Electricity And Water Connections

    appENdix: OVErViEw Of ElECTriCiTy aNd waTEr CONNECTiONS The following section provides a fundamental overview of electricity (voltage, resistance, current, and power) and the importance of an adequate water connection. as always, caution should be used whenever servicing equipment because of high voltages and hot water. ThE CONCEpT Of ElECTriCal ValuES Water Level (VOLTAGE) Faucet (RESISTANCE) Fully Open = 0Ω Fully Closed = <A Few Million Ohms Stream (CURRENT/AMPS) Paddle Wheel Rotates because of stream (POWER/WATTS)

  • Page 22: Resistance/Ohms

    ThE CONCEpT Of rESiSTaNCE Or OhMS (Ω) Example 1 The LONGER the wire is, 2 OhMS (Ω) the MORE resistance it has. 4 OhMS (Ω) – wire is twice as long. Example 2 0 Ω 5000 Ω (5ΚΩ) No Continuity/ No Reading Example 3 0 OHMS (0Ω)

  • Page 23: Basic Power Connections

    baSiC pOwEr CONNECTiONS 120VAC Single Phase Receptacle 220VAC Single Phase Power Block IMPORTANT: L1 voltage to Neutral must always be confirmed as 110V. In certain instances, L1 to N may be 220V (“Stinger Leg” – typically indicated by orange). If a “Stinger Leg”...

  • Page 24: Basic Water Supply And Connections

    baSiC waTEr – Supply aNd CONNECTiONS Flow Requirements Each piece of equipment should be connected 1 Minute to a supply line that provides a minimum of ONE GALLON per MINUTE at the inlet valve connection. 1 Gallon Pressure: 20 -100 PSI is recommended. Supply lines should always be sized to ensure proper flow.
  • Page 25 Notes...
  • Page 26 Notes...
  • Page 27 Notes...
  • Page 28 Wilbur Curtis Company, inC. 6913 Acco Street, Montebello, CA 90640-5403 Telephone: 800-421-6150 · 323-837-2300 Fax: 323-837-2406 www.wilburcurtis.com © 2001-2008 Wilbur Curtis Company, Inc. Printed in U.S.A. APR/08 – 11385 – F-3135 - revC...

This manual is also suitable for:

Alpha-dsAlpha-ddAirpot d500Airpot d1000apThermologic low profilePrimo cappuccino ... Show all

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