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COFFE

tek

LTD

NEVA 4

Issue 1

22/02/08

4

FOREWORD

1.

The information contained in this technical manual is applicable to the Neva 4 Beverage
Machine. Due to customer requirements some units may vary from the one described in
the manual.

2.

Personnel who have undergone relevant equipment training must only undertake
maintenance of the beverage machine.

3.

The Manufacturer reserves the right to make changes, without notice, to the design of the
beverage machine, which may affect the information contained in this manual.

4.

The Neva 4 Beverage Machine is designed for indoor use, in an environment with an
ambient temperature range of between 0

°

C and 40

°

C.

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Содержание NEVA 4

Страница 1: ...NEVA 4 BEVERAGE MACHINE TECHNICAL MANUAL ...

Страница 2: ...TRONIC SYSTEM 10 Functional Description 10 Circuit Description 11 SECTION 2 PROGRAMMING 14 INTRODUCTION 14 INTERNAL KEYPAD LAYOUT 15 KEYPAD FUNCTIONS 15 OPERATORS PROGRAM 16 ENGINEERS PROGRAM 17 Program Options 17 SECTION 3 INSTALLATION AND MAINTENANCE 26 INTRODUCTION 26 SAFETY WARNINGS 27 FROST WARNING 27 Location 28 Levelling 28 Securing 28 CONNECTING THE WATER SERVICES 29 CONNECTING THE ELECTRI...

Страница 3: ...COFFEtek LTD 3 22 02 08 Issue 1 NEVA 4 This page is intentionally blank ...

Страница 4: ...the manual 2 Personnel who have undergone relevant equipment training must only undertake maintenance of the beverage machine 3 The Manufacturer reserves the right to make changes without notice to the design of the beverage machine which may affect the information contained in this manual 4 The Neva 4 Beverage Machine is designed for indoor use in an environment with an ambient temperature range ...

Страница 5: ...COFFEtek LTD 5 22 02 08 Issue 1 NEVA 4 This page is intentionally blank ...

Страница 6: ...dispensed in the required quantity The machine does not accept money but a feature such as this can be added 3 The status of the machine may be monitored and the configuration altered by accessing a program using an internal keypad and display The program offers a menu of options each consisting of a number of sub options which can be altered Programming is accomplished using a dedicated programmi...

Страница 7: ...erage machine 7 6kW Model for fused 30 Amp supply a as above b Current Rating 23A c The fused electrical supply must be terminated at a safety isolator switch which provides a contact separation of at least 3mm The isolator should be located within 1m of the beverage machine Note the mains lead appropriate to the 6kW heater load is not suitable for use with a rewireable domestic plug and no attemp...

Страница 8: ...the inner components is achieved by removing the left hand side panel by lifting it upwards clear of its keyhole shifts Removing this panel gives access to all internal components 15 The mains electricity supply cable enters the machine via a cable gland on the base panel of the machine where it terminates in a terminal block Water System 16 The main water supply enters the machine via a double ch...

Страница 9: ...spensed ingredient to produce the selected beverage Solenoid operated valves distribute the hot water to the selected mixing bowl the amount of water being determined by the program setting A BOILER OVERTEMP CUTOUT 1 D C VALVES INLET VALVE B A MIXERS B D C OVERTEMP CUTOUT 2 6kW ONLY OVERFLOW FIG 1 2 WATER SYSTEM FUNCTIONAL DIAGRAM ...

Страница 10: ...riate 23 The main System Program tasks the microprocessor with continually checking the status of the input devices keypad probe etc and responding to data received by signaling the output devices LCD display motors whippers etc to take the appropriate action The System Program also requests the microprocessor to interrogate the variable settings in NVRAM and to modify its actions accordingly 24 O...

Страница 11: ...AC main supply is taken from the terminal block to the Power Supply PCB via the On Off switch The Power Supply PCB provides DC supplies of 24V 12V and 5V The 24V DC output supplies the ingredient motors whipper motors extraction fan SSR and solenoid operated valves The 12V DC output supplies the MPU Controller Board and operational coin acceptor if fitted 28 The MPU Controller Board continually ch...

Страница 12: ...COFFEtek LTD NEVA 4 Issue 1 22 02 08 12 ...

Страница 13: ......

Страница 14: ...both the Operator and the Service Engineer but the Engineer s Program is only available to the Service Engineer 2 Both the programs are stored in programmable read only memory on the Controller Board The values and settings Variables which the program allows the programmer to alter are stored in NVRAM non volatile random access memory 3 Settings are maintained without the need for back up battery ...

Страница 15: ...d resetting the drink counters if applicable Additionally the operator can set the machine to Out of Service mode if required 5 Keypad key functions when used in the operator s programming mode are as follows Key ENTER used to access a function Key ESC used to escape from the operators mode Key PROG used to access the Operator s Program then used to change menu functions ARROWS UP DOWN À LEFT RIGH...

Страница 16: ... options are as follows TOTAL VENDS RESET COUNTERS DISABLE VENDS VIEW INGREDIENT COUNTERS TOTAL VENDS 9 Access the TOTAL VENDS COUNT option using PROG key the display will show total vend count RESET COUNTERS 10 Access RESET COUNTERS by using PROG key to clear drink counters press ENTER The display will show ARE YOU SURE ENTER Y ESC N DISABLE VENDS 11 The machine may be disabled without switching ...

Страница 17: ... will now show SELECT DRINK TO MODIFY 4 The machine is now in engineer s mode Program Options 15 Thirteen program options are available as follows SELECT DRINK TO MODIFY SELECT DRINK TO TEST OUTPUT TEST CHANGE PRICE OF OR INHIBIT DRINKS SET INGREDIENT THROW RATE TANK STATUS INITIALISE CHANGE SETTINGS PRESS DRINK FOR FIXED COUNTERS EDIT BIN NAMES SAVE TO HIGH MEMORY BANK SET FACTORY DEFAULTS LEAVE ...

Страница 18: ...d in these menus 18 The SELECT DRINK TO MODIFY option allows modification of individual drink timings 1 First select the drink e g Product A The display will show DRINK 03 NAME IS PRODUCT A If name is correct move to step 4 2 Press ENTER The display will show PRODUCT A À ENTER OR ESC 3 Press to scroll other drink name options available or press À to return to Product A Press ENTER to enter new opt...

Страница 19: ...h of the Coffee drink 1 With the SELECT DRINK TO MODIFY menu displayed press the button on the EXTERNAL keypad that is assigned to the Coffee drink Then use the À to scroll through to the display that controls the coffee ingredient motor run time It will be of the form below COFFEE ING DUR Note It is the DURation we want to change to adjust the strength NOT the START time which would only control ...

Страница 20: ...TOR MOTOR A B C D WHIPPER WHIPPER WHIPPER A B C D 1 For example to operate the Ingredient Motor C select Motor C by pressing until it appears in the display window then press to switch the motor ON then press to switch the motor OFF 2 To select other components press or À to list all other components and repeat the procedure above CHANGE PRICE OF OR INHIBIT DRINK 25 The CHANGE PRICE OF OR INHIBIT ...

Страница 21: ...show INGREDIENT A grams per second VAL 00001 05 3 Press to increase the value or À to decrease it 4 Having set the new throw rate press ENTER to enter the new value 5 Press to display the next ingredient 6 Press ESC to exit from the SET INGREDIENT THROW RATE option TANK STATUS 27 The TANK STATUS option allows the Engineer to view the status of the boiler water level and temperature 1 Press ENTER t...

Страница 22: ... of drink are scaled i e product whipper water DRY VEND FLAG Enables product only operation 0 Water On 1 Water Off CREDIT LOCK Disables all free drink facilities 0 Credit Lock disabled default setting 1 Credit Lock active When Credit Lock is set to 1 Credit Device and Credit Lock settings are not displayed Additionally Select Drink to Test Select Drink to Restore Presets Change Price or Inhibit Dr...

Страница 23: ...e been altered 6 Press PROG to exit from the CHANGE SETTINGS option and access the next Engineer s Program option DISABLING THE CREDIT LOCK 30 To disable the CREDIT LOCK after it has been set proceed as follows a Enter CHANGE SETTINGS and set the Dry Vend Flag to 42 b Exit from CHANGE SETTINGS c Enter CHANGE SETTINGS and set the Dry Vend Flag to 0 d Set the Credit Lock to 0 PRESS DRINK FOR FIXED C...

Страница 24: ...g mode 4 Keeping the machine switched on move the link on LK1 to the centre and right hand position on the MPU These new settings are retained in High Level Memory The machine setting can be adjusted but if the machine is initialised the machine will return to High Level Memory SET FACTORY DEFAULTS 34 The SET FACTORY DEFAULT option will allow the engineer to initialise a new MPU Board with default...

Страница 25: ...COFFEtek LTD 25 22 02 08 Issue 1 NEVA 4 This page is intentionally blank ...

Страница 26: ...ny procedure which is found to be impracticable inadequate or inaccurate should be reported to the Management for further investigation 3 The requirements of proper hygiene in respect of food products must be ensured at every level of contact with the beverage machine and the ingredients associated with it 4 In compliance with current regulations the materials used in the manufacture of the bevera...

Страница 27: ... indoor use in an environment with an ambient temperature range of between 0 C and 40 C The machine should be located close to the appropriate electrical and water services with a minimum of 100mm 4in clearance between the rear of the cabinet and the wall to allow adequate ventilation and if in a corner location not closer to the right hand wall than 400mm 16in to accommodate opening of the door T...

Страница 28: ...ted close to the appropriate electrical and water services with a minimum of 100mm 4in clearance between the rear of the cabinet and the wall to allow adequate ventilation and if in a corner location not closer to the right hand wall than 400mm 16in to accommodate opening of the door The unit should not be situated in an area where a water jet could be used Levelling 6 The machine should be levell...

Страница 29: ...the flexible hose 9 The outlet should be fitted with BSP connections and must be positioned within 1 5m of the machine to ensure correct fitting of the hose If possible the outlet should be located behind the machine to prevent misuse 10 Before connecting the machine hose to the mains outlet flush the system via the stopcock to remove any impurities that may have accumulated in the mains supply pi...

Страница 30: ...THE REAR OF THE MACHINE 5 THE BEVERAGE MACHINE MUST BE EARTHED 12 The beverage machine is fitted with a domestic 3 pin plug for connection to a standard 13A supply alternatively the beverage machine may be connected via a safety isolator switch with a contact separation of at least 3mm to a 230V 50Hz 13A supply Note that replacement of the Y Type mains cable requires special tools Should the cable...

Страница 31: ...which have been removed 4 Remove the solenoid operated valves and the thermostat probe from the tank 5 Check the heater element for signs of deterioration Replace if necessary 6 Descale the tank in the approved manner 7 After descaling flush the tank thoroughly with cold water refit the solenoid operated valves and thermostat probe and install and reconnect the tank to the machine 8 Restore the el...

Страница 32: ...mportance of hygiene and regular cleaning is fully appreciated by the Operator 16 With the water and electrical supplies connected to the machine proceed as follows 1 Set the On Off switch on the machine to OFF 2 Isolate the electrical supply from the machine 3 Open the cabinet door and locate the waste tray 4 Ensure that the overflow pipes are not trapped 5 Restore the electrical supply to the ma...

Страница 33: ...electrical supply from the machine 15 Check all hose connections for leaks 16 Clean the interior and exterior of the cabinet 17 Restore the electrical supply to the machine 18 Set the On Off switch on the machine to ON 19 Operate the machine through the complete range of dispense operations and check that each one is correct ...

Страница 34: ...eater tank e Solid state relay fault f Low cut out in program incorrectly set g Temperature probe wet a Jammed motor b Power Supply failure safety trip a Power Supply failure a Low water pressure b Inlet valve fault c MPU Board fault a Check motors b Replace MPU Board c Reset power a Replace keypad b Reconnect c Replace MPU Board a Check and replace b Reset trip c Check desired temperature setting...

Страница 35: ...positioned a Dispense pipes incorrectly fitted to dispense head b Mixing bowls incorrectly fitted c Whipper seals missing d Overflow pipe incorrectly fitted a Display connector loose a Thermal cut out tripped b Heater fuse blown c Incorrect temperature setting a Reset desired temperature setting b Replace probe c Replace MPU board d Replace relay a Check probe circuit b Check inlet valve and repla...

Страница 36: ...COFFEtek LTD NEVA 4 Issue 1 22 02 08 36 Section 4 Exploded Parts Diagram ...

Страница 37: ...COFFEtek LTD NEVA 4 Issue 1 22 02 08 38 ...

Страница 38: ...COFFEtek LTD 39 22 02 08 Issue 1 NEVA 4 ...

Страница 39: ...COFFEtek LTD NEVA 4 Issue 1 22 02 08 40 ...

Страница 40: ...COFFEtek LTD 41 22 02 08 Issue 1 NEVA 4 ...

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