Related Manuals for CMA Dishmachines AK
Summary of Contents for CMA Dishmachines AK
- Page 1 FULLY-AUTOMATIC ESPRESSO COFFEE MACHINE use and maintenance manual for the TECHNICIAN ENGLISH Via Condotti Bardini, 1 - 31058 SUSEGANA (TV) - ITALY Tel. +39.0438.6615 - Fax +39.0438.60657 - www.cmaspa.com - cma@cmaspa.com...
- Page 3 FULLY-AUTOMATIC ESPRESSO COFFEE MACHINE use and maintenance manual for the TECHNICIAN English...
- Page 4 INTRODUTION The manufacturer reserves the right to make product improvements. We guarantee that this manual respects the technological status at the time the machine is supplied. We are open to any suggestions from technicians which may improve the product and the manual. GENERAL WARNINGS Once the packaging has been removed make certain the appliance is in good condition;...
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Page 5: Table Of Contents
Summary GENERAL DESCRIPTION ......................... 6 TECHNICAL FEATURES ........................... 7 DESCRIPTION OF INTERNAL COMPONENTS ..................7 INSTALLATION ............................8 4.1 Unpacking .....................................8 4.2 Preparation of the coffee grinder ..............................8 4.3 Positioning the machine ................................8 CONNECTIONS & OPERATIONS ......................9 5.1 Hydraulic connection ..................................9 5.2 Maintenance and cleaning .................................10 5.3 Electrical connection ..................................10 Machine start-up... -
Page 6: General Description
Technical manual GENERAL DESCRIPTION 1 Opening for decaffeinated coffee/for washing tabets 2 Coffee grinder hopper 3 Opening for washing tabs 4 Inspection door 5 Programming key 6 Steam dispensing knob 7 Steam dispensing wand 8 Hot water dispensing spout model Pressure gauge Coffee grouts box Coffee spouts... -
Page 7: Technical Features
Technical manual TECHNICAL FEATURES 57 cm Width (L) Depth (P) 59 cm Height (H) 83 cm Weight 94 kg Voltage 230/240/400 V 4000 W Total input (18 A) Boiler heating 2700 W Boiler capacity 7 litres element power (12 A) Coffee grinder 350 W x 2 Boiler working... -
Page 8: Installation
Technical manual INSTALLATION Unpacking For correct unpacking proceed as follows to unpack the machine correctly: Cut the straps around the packaging. Pull the box off upwards. Position the machine on the worktop. We recommend you keep the packaging until the guarantee period has expired. -
Page 9: Connections & Operations
Technical manual 5. CONNECTIONS and OPERATIONS 5.1 Hydraulic connection The softener provided has been designed to function at a pressure ranging between 1 and 9 bar. It has to be fi lled with cold drinking water only. When connecting the machine to the water mains, install a tap between the machine and the mains so as to be able to interrupt the supply of water to the appliance. -
Page 10: Maintenance And Cleaning
Technical manual 5.2 Maintenance and cleaning To make the service and cleaning operations easier, parts of the external casing are removable. In particular from the front, the user has access to the inside of the machine by opening the doors that cover the group and push button panel. - Page 11 Technical manual SINGLE-PHASE 230V MONOFASE 230V + EARTH + TERRA LEGEND Brown Black Blue Yellow-Green TRIFASE 230V THREE-PHASE 230V + EARTH + TERRA Machine cable Electricity mains R-S-T Phase Phase Neutral Earth THREE-PHASE 400V TRIFASE 400V + NEUTRAL + NEUTRO + EARTH + TERRA english...
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Page 12: Machine Start-Up
Technical manual Machine start-up Once the machine has been correctly connected to the electrical mains, it is started by placing the bi-polar switch on the left side of the machine in position 1. Once this is done, the display will illuminate, and the message "PRESS START" will appear. In this situation the machine will not be activated, the boiler heating element, and the controls will not be enabled. -
Page 13: Machine Programming
Technical manual MACHINE PROGRAMMING This chapter lists the instructions for modifying some machine parameters, such as group temperatures, grinding times, dose adjustment, and so on. The procedures are also described for checking for defective components, for counting selections made, for setting wash requests, and so forth. -
Page 14: Programming Of Grinding Times
Technical manual Programming of grinding times Programming of grinding times is for the purpose of changing the amount of grams of coffee for each selection in which coffee is used. This modifi cation is performed by changing the grinding time for each coffee selection. To modify grinding times, proceed as follows: Turn the programming key clockwise. -
Page 15: Programming Of Group Temperatures
Technical manual Programming of group temperatures In this section it is possible to modify the temperature of each group. In fact, each group is heated by an internal heating element controlled by a temperature sensor. This operation may be necessary when the coffee delivered is not at a temperature which is satisfactory to the client. -
Page 16: Programming Grounds
Technical manual Programming grounds no. This programming operation allows you to change the maximum number of coffee grounds tabs that can be discarded into the grounds drawer. Once this number has been reached, the machine will inform the operator to empty the grounds drawer via the procedure shown in the user's manual of the machine. -
Page 17: Loading/Saving Data On Smart Card
Technical manual Loading/saving data on Smart Card The machine is standard equipped with a Smart Card reader. This makes it possible to save all data programmed by the user in a card with a microchip. This data can subsequently be re-loaded in the same machine or in another of the same model. To do this, proceed as follows: 1. -
Page 18: Added Water Option
Technical manual Added water option The added water option makes it possible choose to which coffee selections a certain programmable amount of hot water will be added. This option is available in the medium single and double selections, and single and double long (American coffee) selections of both groups. - Page 19 Technical manual 3. PROGRAMMING COFFEE AND MILK / CAPPUCCINO SELECTIONS By pressing the key for the desired selection, the phase of milk suction and heating by the cappuccino maker will be started. Once the desired dose of milk is reached, press the same key again. The machine will stop milk delivery, and it will memorize the time required for the suction of that amount.
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Page 20: Adjustment Of Doses
Technical manual b) Hot milk with a shot of coffee Press the key for the selection of hot milk with a shot of coffee. The display will show the message "PROG. MILK WITH SHOT OF COFFEE C." and delivery will begin of non-foamed hot milk. Once the desired dose is reached, press the same key. - Page 21 Technical manual Press the key for the selection of which you wish to modify the dose. The display will show the volume of water in c.c. calculated by the volumetric dosing device for that particular selection. E.g. "C. DOSE 1 ESPRESSO GR1 CC NNN".
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Page 22: Programming Date
Technical manual 6.10 Programming date In this section it is possible to update and modify the date in the machine (year, month, day and time). To modify one of the date parameters, proceed as follows: Turn the programming key clockwise. This key is located on the right of the control panel. The display will show the letter "P", to indicate that the machine can be programmed. -
Page 23: Alarm Signals
Technical manual 6.11 Alarm signals In this section it is possible to check all signals that the machine provides in the event of a malfunction. The machine will record every single alarm in a register (group motor blocked, group overheat, coffee missing alarm, etc.). - Page 24 Technical manual control machine alarms Display of the number of alarms due to maximum boiler water level fi lling time being exceeded. IN the boiler nn Press ENTER to go to the next check. Display of the number of alarms due to minimum level of minimum level water in the boiler.
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Page 25: Input Test
Technical manual 6.12 Input test In this section it is possible to check the operation of all input signals of the machine such as push button panel keys, microswitches, probes, and so forth. To carry out this check proceed as follows: Turn the programming key clockwise. - Page 26 Technical manual INPUT test TEST InPUT K 1 0 ---> TEST InPUT TEST InPUT TEST InPUT K 2 0 ---> K 16 0 ---> K 30 1 ---> TEST InPUT TEST InPUT TEST InPUT K 3 0 ---> K 17 0 ---> K 31 0 --->...
- Page 27 Technical manual push button panel control Keep the selection key pressed (for example 1 ESPRESSO from coffee). The test is OK if what is shown on the display goes TEST InPUT from K 1 0 ---> k .. indicates the push button code (see drawings on page 25.
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Page 28: Actuator Test
Technical manual 6.13 Actuator test In this section it is possible to check the electrical operation of all components (utilities) of the machine (grinder motor, group motor, solenoid valves, etc). To carry out this check proceed as follows: Turn the programming key clockwise. This key is located on the right of the control panel. The display will show the letter "P", to indicate that the machine can be programmed. - Page 29 Technical manual Group 1 motor functionality test. By pressing the ARROW keys program test verify if the motor is working properly. MOTOR GRoUP 1 Press ENTER to go to the next check. Group 2 motor functionality test. By pressing the ARROW keys program test verify if the motor is working properly.
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Page 30: Data Reading
Technical manual 6.14 Data reading In this section it is possible to check the number of deliveries provided by the machine (no. of espressos gr1, no. of teas, no. of cappuccinos, no. of washing performed, etc.). The method of reading the selections made differs depending on whether the machine is confi gured of use without staff key (standard) or with staff key (optional). - Page 31 Technical manual If key U is inserted, the list of simple staff keys that can be selected will be displayed by pressing the ENTER key Once the desired key has been selected, by pressing the single selections the display will show the number of cycles performed for that specifi...
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Page 32: Resetting Data
Technical manual 6.15 Resetting data (only in standard confi guration without staff keys) This option makes it possible to reset all cycles performed and recorded by the machine. To reset cycles, proceed as follows: Turn the programming key clockwise. This key is located on the right of the control panel. The display will show the letter "P", to indicate that the machine can be programmed. - Page 33 Technical manual To activate and modify the wash requests, proceed as follows: Turn the programming key clockwise. This key is located on the right of the control panel. The display will show the letter "P", to indicate that the machine can be programmed. Once the letter "P"...
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Page 34: Machine Configuration
Technical manual MACHINE CONFIGURATION Preparation of confi guration mode The fully automatic espresso coffee machine is supplied ready for installation with a factory-set confi guration (language, key confi guration, etc.). If this confi guration is not the best suited to customer needs, it can be varied as follows: Turn the machine off. -
Page 35: Confi Guration Of Coin Slot
Technical manual Confi guration of coin slot When this option is activated, the machine is set up for coin slot operation (see attached manual). Confi guration of cappuccino maker This option makes it possible to de-activate all selections that use milk, thus including the cappuccino maker. When this item is activated, all keys assigned to selections that use the cappuccino maker will be locked. -
Page 36: Confi Guration Of Double Cycle Gr.1
Technical manual Confi guration of double cycle gr.1 Double cycle activation makes it possible to deliver a coffee beverage in two consecutive automatic cycles. When the desired key is pressed, the machine will perform two complete cycles. This option can be activated only for the DOUBLE LONG selections of each group. In confi... -
Page 37: Push Button Panel Confi Guration
Technical manual 7.12 Push button panel confi guration Automatic machines with software version 3.23 or greater have the possibility to confi gure each single key of the push button panels on the front of the machine. It will therefore be possible to defi ne an arbitrary number of selections from a preset list included in the software. To do this, proceed as follows: In confi... -
Page 38: Confi Guration Of Rs 232
Technical manual 7.13 Confi guration of RS 232 (connection to external device) By activating this option, the machine will be enabled for connection to an external electronic device, such as a computer or cash register. The machine may work in debit-credit mode (the cash register records beverages prepared by the machine) or credit-debit (the machine only provides selections authorized by the cash register). -
Page 39: Confi Guration For Lack Of Coffee In Decaffeinated
Technical manual 7.15 Confi guration for lack of coffee in decaffeinated In this section it is possible to de-activate, only for decaf selections, the check that the machine carries out to verify lack of coffee during the pressing phase. This option may at times be necessary since, using a 7-gram dose of ground coffee, to be poured to the appropriate funnel, part of this dose may not reach the group chamber. -
Page 40: Machine Components
Technical manual MACHINE COMPONENTS Boiler The boiler, made of copper plate, housed the heat exchangers and the electric heating element (1). The heating element heats the water in the boiler. Water to make coffee is taken from the heat exchanger, while hot water is taken from the boiler. -
Page 41: Pressure Control
Technical manual Dispensing unit The dispensing unit is the “heart” of the coffee-machine. It has a piston that presses the coffee for infusion and a movable arm acting as stopper. The piston and the stopper are controlled by a D.C. motor. The mechanical wear of some components alters the operating conditions of the inside parts, modifying the machine’s original defaults (see group... -
Page 42: Maintenance Of Groups
Technical manual Maintenance of groups The delivery group is the main mechanical component of the machine. It requires regular maintenance. This maintenance requires the group to be removed. To replace the delivery groups, proceed as follows: Open the upper cover. Disconnect the electrical plug located in the outer part of the group. - Page 43 Technical manual O.R. replacement upper piston: Remove the group from the machine following the instructions on page 42. Loosen the screws that hold the upper brush. Use a small screwdriver or a pointed tool to lever out the o-ring. Once removed, carefully clean the housing of the o-ring of coffee residue, using the provided brushes dipped in hot water.
- Page 44 Technical manual Replacement of 230 V heating element (blue wires). Remove the group from the machine following the instructions on page 42. Loosen the anchoring screw (1) without removing it. It is located on the front side of the group chamber. Extract the cartridge heating element from the chamber.
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Page 45: Pressure Control
Technical manual Pressure control (pressure switch) It is used to turn the heating elements on or off according to the pressure reached inside the boiler. Pressure regulation can vary from a minimum of 0.5 bar to a maximum of 1.4 bar. Contacts inside the machine are subject to oxidation. -
Page 46: Cappuccino-Maker
Technical manual 8.11 Cappuccino-maker 1 - Steam solenoid valve EV1 (milk suction - Venturi effect). 2 - Added water solenoid valve. 3 - Milk fl ow reducer in suction (reduces or increases the fl ow of milk and thus increases or reduces the temperature) 4 - Coffee dispensing spout. -
Page 47: Electronic System
Technical manual ELECTRONIC SYSTEM The electronic system consists of the following electronic cards: POWER Hardware card DRIVER Hardware card CPU Software logic MOTHER BOARD Hardware card DISPLAY CARD SMART CARD In addition, it has: Push button panel and display Actuator relays LEDs Microswitches Level probes... -
Page 48: Troubleshooting
Technical manual TROUBLESHOOTING 10.1 Indications on the display display cause remedy Press the key Use the relative knob Groud too coarse on the coffee grinder to make ground fi ner GRINDing GR 1 - 2 NOT correct Using the provided brush, eliminate the Coffee residue around upper piston coffee residues around the (see page 61) head... - Page 49 Technical manual display cause remedy Microswitch no. 1 is either faulty Reconnect and/or or disconnected change microswitch no.1 if necessary piston motor gr 1 - 2 blocked Check correct setting of cam no. 1 Incorrect setting of cam no. 1 (see Chap.11) Foreign body inside the dispensing Remove the foreign body...
- Page 50 Technical manual display cause remedy Softner taps closed or the Open all taps upstream from the machine mains water taps are closed Change the pump Pump fi lter clogged fi lter Remove the tube and clean it or replace it Presence of lime deposits in WATER LEVEL the boiler fi...
- Page 51 Technical manual display cause remedy Coffee ground too fi ne Increase coarseness with the ring nut Enter the “Actuator Test” in machine Water fl ow obstructed somewhere programming and fi nd where the blockage along the hydraulic circuit (volumet- is (group solenoid valve or motor pump). ric dosing device, gicleur group) Eliminate blockage either by cleaning or volum doser gr1 - 2...
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Page 52: Failures And Functional Problems
Technical manual 10.2 Failures and functional problems problem cause remedy SCNR valve (expansion and check Replace the SCNR valve valve) or its components (spring, seal, etc.) are malfunctioning Limescale or impurities inside the Open the valve and clean all components SCNR valve ERRATIC COFFEE SCNR valve drainage pressure... - Page 53 Technical manual problem cause remedy WATER IS LEAKING Bottom piston seals deteriorated Replace the bottom piston seals FROM THE BOTTOM OF Replace the fi tting and/or pipe Fitting and/or pipe deteriorated THE DISPENSING GROUP No mechanical seal of the shaft or O- Check the pump ring Tighten the fi...
- Page 54 Technical manual problem cause remedy THE GAUGE SHOWS A Change the gauge The gauge is faulty NOT COMPLYING PUMP Recalibrate the motor pump The motor pump is incorrectly PRESSURE calibrated Restore Microswitch no. 3 faulty or connection, disconnection changing the THE DISPLAY FAILS TO microswitch if SIGNAL THERE IS NO...
- Page 55 Technical manual problem cause remedy Place the injector correctly The injector is not properly in place Wait for correct operating pressure No steam Close the milk suction regulator Milk suction regulator is open too much THE MILK IS TOO COLD Clean the hole with the relative brush The cappuccino-maker through-hole is clogged...
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Page 56: Adjustment Of The Dispensing Group
Technical manual 11. ADJUSTMENT of the DISPENSING GROUP 11.1 Positioning of the cams a. Switch the machine OFF and then ON again b. Turn the programmation key c. Press the MODE key several times until TEST ATTUATORI is displayed PHASE 1 Press the piston (A) descent key until it reaches inside the cylinder (B) with the supporting arm (C) completely straight;... - Page 57 Technical manual PHASE 5 Remove the coffee grounds drawar (F); PHASE 6 Press the piston (A) descent key until the piston bar (G) is 3 mm under the group bottom tooth (H) PHASE 7 Position cam no.2 so that the microswitch lever (L) is in the top position.
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Page 58: Control The Adjustment
Technical manual 11.2 Adjustment control CAM No.1 control PHASE 1 Press the piston descent key until it has reached the lowest position allowed. PHASE 2 Keep the ascent key pressed until the piston (A) stops automatically; PHASE 3 Proceed according to the following steps: adjustment situation operations on GR. - Page 59 Technical manual checking CAM No. 2 PHASE 1 After checking of cam no.1, keep the piston descent key (A) pressed until it stops by itself; PHASE 2 Proceed according to the following steps: adjustment situation operations on GR. 1 operations on GR. 2 INCORRECT ADJUSTMENT Turn cam 2 Turn cam 2...
- Page 60 Technical manual checking CAM No. 3 PHASE 1 After checking cam no. 2, press the piston ascent key (A) until the piston stops by itself; PHASE 2 Keep the descent key pressed until the piston stops by itself (A); PHASE 3 Press the descent key again until the piston stops by itself (A);...
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Page 61: Cleaning
Technical manual 12. CLEANING Each day Wash the cappuccino maker as follow: - dip the milk suction tube in a container with milk and soap - select the milk button - repeat this operation several times - repeat the operation using water only. - Page 62 Technical manual english...
- Page 63 Technical manual WIRING AND HYDRAULIC DIAGRAMS english...
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Page 64: Wiring Diagrams
Technical manual 13 WIRING DIAGRAMS 13.1 POWER DIAGRAM english... -
Page 65: High Voltage Diagram
Technical manual 13.2 HIGH VOLTAGE diagram english... -
Page 66: Low Voltage Diagram
Technical manual 13.3 LOW VOLTAGE diagram P15/A P15/B A - Cappuccino milk sensor set group 1 M - Steam button B - Minimum level sensor (red) - Water button C - Level sensor (blue) - Volumetric dosing device group 1 D - Boiler temperature sensor - Volumetric dosing device group 2 E - Common micro... -
Page 67: Cpu Card - 2003 Version
Technical manual 13.4 CPU card - 2003 version DL10 DL11 DL12 DL13 DL14 DL15 DL16 DL17 DL18 DL19 DL20 DL21 DL22 DL23 DL24 DL25 DL26 DL27 DL28 DL29 DL30 DL31 DL32 DL33 DL34 DL35 DL36 DL37 GIEMME 02.52.0084 REV-4 EPROM DALLAS IC12 EPROM... -
Page 68: Cpu Card - 2005 Version
Technical manual 13.5 CPU card - Version 2005 DL10 DL11 DL12 DL13 DL14 DL15 DL16 DL17 DL18 DL19 DL20 DL21 DL22 DL23 DL24 DL25 DL26 DL27 DL28 DL29 DL30 DL31 DL32 DL33 DL34 DL35 DL36 DL37 DL38 GIEMME 02.52.0084 REV-5 R146 C23A R167... -
Page 69: Driver Card - 2003 Version
Technical manual 13.6 DRIVER card - 2003 version PF13 PF14 GIEMME 02.52.0085 REV-2 Resistance powered signal gr.2 SV relay added water gr.2 Resistance powered signal gr.1 Grinder relay gr.2 Movement signal gr.2 Solenoid valve relay gr.2 Movement signal gr.2 SV relay added water gr.1 Movement signal gr.1 Grinder relay gr.1 Movement signal gr.1... -
Page 70: Power Supply Card - 2003 Version
Technical manual 13.7 POWER SUPPLY card - 2003 version TRF1 PTC1 RL10 M15E M15E M15E M15E M15E M15E M15E M15E M15E M15E GIEMME 02.52.0083 REV-1 Pump relay Card power supply Tea SV relay 12V circuit Token dispenser 5V circuit EV1 cappuccino maker relay Boiler refi... -
Page 71: Mother Board Connector Diagram - 2003 Version
Technical manual 13.8 MOTHER BOARD connectors diagram- 2003 version FrameGnd 02.52.0086 REV 3 50-pole fiat Neutral connection +VAL push button panel Neutral and display Phase Phase +12V Contactor Automatic steam +Val Counter Vent1 LH Cap.Disch.-Sv3 volum. Gr1 RH Cap.disch.-Sv3 +Val RH Cap.Air-Sv1 Counter Vent2... -
Page 72: Interface Connection Diagram
Technical manual 13.9 INTERFACE CONNECTION diagram Functional Technical Specifi cation 32 I/O relay Thanks to the interface dosing can be connected to management systems that use for each key the corresponding output of a relay or of an open-collector transistor. The I/O card utilises a relay contact. - Page 73 Technical manual Table of codes generated by DOS aut. 2 gr. 4 with “AUTOMA” fi le DESCRIPTION SIGNAL RELAY REF. CONNETT. I/O Espresso GR.1 011 h CN7-1 Medium GR.1 012 h CN7-2 Long GR.1 013 h CN7-3 2 Espressos GR.1 014 h CN7-4 2 Medium GR.1...
- Page 74 Technical manual I/O active I/O excluded Serial communication LED Power supply LED OK RELAY GROUP DOSE 1 Espresso 1 Medium 1 Long 2 Espressos 2 Medium 2 Long 1 Espresso 1 Medium 1 Long 2 Espressos RL10 2 Medium RL11 RL12 2 Long RL13...
- Page 75 Technical manual 8 7 6 5 4 3 2 1 Connectors card Power supply Remove jumper JP2 Serial transmission cable cod. 22554002 Power cable cod. 22554003 I/O active I/O excluded Serial communication LED Power supply LED OK Black To connect to the P21 Interface I/O relay english...
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Page 76: Hydraulic Diagrams
Technical manual HYDRAULIC DIAGRAM - Water inlet 2 - Tap 3 - Filter 4 - Pump 5 - Distributor 6 - Mixing solenoid valve 7 - Tea solenoid valve 8 - SCNR valve 9 - Volumetric doser 10 - Exchanger 11 - Boiler 12 - Boiler solenoid valve 13 - Gauge... - Page 77 Technical manual NOTE english...
- Page 80 C.M.A. S.p.a. Via Condotti Bardini, 1 - 31058 SUSEGANA (TV) - ITALY Tel. +39.0438.6615 - Fax +39.0438.60657 www.cmaspa.com - cma@cmaspa.com Cod. 02000133 - Rev. 03 - 12/2005...
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