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NECTA SPA TECHNICAL MANUAL “BRIO 250”  
 

Service Manual: Brio 250  

Edition 02-2002 

 

14

 / 27 

3.1 - BOILERS 

In the 

Brio Espresso 

model there is only one 

pressure 

type boiler identical to the model used for the Venezia

 

vending machine and controlled by an air-break and a vibration pump

Installed power 1200 W 

On the other hand in the 

Instant 

version there is a specific 

open-top 

boiler with an incorporated air-break. 

Installed power 1600 W 
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

ESPRESSO

   

 

 

 

 

INSTANT

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
See relevant section in the functional unit manual for details, photos and complete description 
NOTE * 

In both boilers the internal temperature control is by means of a NTC * type electronic probe fitted with an internal 12 K ohm 
(± 4 ohm) resistance at a temperature of 25° C. 
As the internal temperature increases the resistance is reduced progressively as indicated in the following table. 

 

Boiler temperature °C 

Value in ohm 

Allowed tolerance 

35875 

± 7 ohm 

25 

12000 

± 4 ohm 

50 2900  ,, 
85 1475  ,, 
90 1260  ,, 

100 963 

,, 

HYDRAULIC DIAGRAMS - ESPRESSO AND INSTANT VERSIONS 

3-way solenoid 
valve 

Safety 
thermostat 

NTC 
Probe 

Open-top 
boiler 

Pressure 
boiler 

Pump with a by-pass

Open-top 
boiler 

NTC Probe 

Thermostat 

2-way solenoid
valves 

Pressure 
boiler 

Содержание Necta BRIO 250

Страница 1: ...AL MANUAL BRIO 250 Service Manual Brio 250 Edition 02 2002 1 27 AFTER SALES SERVICE Hot Cold SERVICE MANUAL BRIO 250 BASIC TECHNICAL MANUAL THE CONTENTS OF THIS DOCUMENT ARE INTENDED FOR NECTA S AFTER...

Страница 2: ...8 9 10 11 Page 12 13 14 Page 15 Page 15 Page 16 Page 16 Page 17 Page 18 Page 19 Page 20 21 Page 22 Page 24 Page 25 Page 26 Page 27 NOTE The above systems and functional units are specific to this mac...

Страница 3: ...50 Edition 02 2002 3 27 1 HYDRAULIC LAYOUT List of hydraulic components 1 Water inlet solenoid valve 2 Air break 3 Filter 4 Volumetric counter 5 Pump 6 Pump by pass 7 Brewer unit 8 Pressure boiler 9 L...

Страница 4: ...c counter In the Instant version an open top boiler fitted with an internal float is used having also the function of an air break The amount of liquid is calculated by opening a solenoid valve counti...

Страница 5: ...orming to the standards in force which is adopted for that specific market In the event of replacement cables of exactly the same characteristics must be used Since the Brio vending machine is approve...

Страница 6: ...Cup sensor switch EX Executive coin mechanism connector PIP Programming mode button CCG Mechanical counter CMSB Cup release motor cam SAL Payment systems power supply board TR Transformer TZ Cup sens...

Страница 7: ...egend N Description 1 TRIAC boiler heating element 2 Jumper Espresso Instant configuration 3 MINIDIP Configuration 4 RAM 5 EPROM 6 J S 3 EPROM size configuration Jumper 7 J S 4 EPROM size configuratio...

Страница 8: ...ntained water supply K 05 Coffee brewer motor K 05 Solenoid valve 3 K 06 Solenoid valve 2 K 06 Solenoid valve 2 K 07 Solenoid valve 1 K 07 Solenoid valve 1 K 08 Whipper 1 K 08 Whipper 4 K 09 Doser dev...

Страница 9: ...ommands it also supports the coin mechanism connectors and the RS232 printer port The board power 15 V AC Note 2 is supplied through the transformer which is protected with two fuses 125 mA T on the p...

Страница 10: ...e for the required use To check its configuration proceed as follows A series of minidips Ref 3 are located at the centre of the board permitting its configuration for use in the different versions an...

Страница 11: ...GURATION STIRRER Dispensed also with unsweetened selections Not dispensed with unsweetened selections MINIDIP 2 ON OFF PAYMENT SYSTEM CONFIGURATION FRONT COIN MECHANISM Front ON OFF MINIDIP 1 Fixed to...

Страница 12: ...y important not to replace the microswitch with another one of different mechanical characteristics as a variety of malfunctions may occur Furthermore in the event of failure to the maximum level micr...

Страница 13: ...ons and sets the vending machine in Water Failure condition Stand by operating condition With the air break full when a selection is made a solenoid valve is activated 2 way or 3 way according to the...

Страница 14: ...unit manual for details photos and complete description NOTE In both boilers the internal temperature control is by means of a NTC type electronic probe fitted with an internal 12 K ohm 4 ohm resista...

Страница 15: ...tire range of H C vending machine is used The pump has overheating protection in case of continuous or dry operation by means of a 90 C self reset klixon In order to maintain a constant brewing pressu...

Страница 16: ...h characteristics as to be able to perform self adjustments under optimum conditions The kit ensures optimum temperature in the brewing chamber without altering the taste as it happens in currently ma...

Страница 17: ...nit used in other ranges of the H C machines but adapted to this specific application and with the sugar release device incorporated which works simultaneously Operation The release ratiomotor is trig...

Страница 18: ...etting cannot be longer than the one for dispensing water otherwise there is a risk of clogging up the mixers By default any time setting greater than the one for dispensing water is CUT Specific cont...

Страница 19: ...lity of dispensed products that must have as much as possible the appearance of products served at the bar The motors are special high rotation speed commutator motors 20 000 rpm powered with 230 V AC...

Страница 20: ...is approximately 10 c c per second and it is given as an indication as there are many variables that can affect the accuracy The liquid dose is determined by the counting of flow meter pulses cdv The...

Страница 21: ...ure to relay K02 After grinding and during the attempt of releasing the ground coffee the doser device plate triggers a microswitch that signals the coffee release If such microswitch is not triggered...

Страница 22: ...the tank float microswitch The coffee lacks body and cream and is dispensed too quickly Excessively coarse grinding Insufficient ground coffee dose Inspect the grade of grinding keeping in mind that...

Страница 23: ...NECTA SPA TECHNICAL MANUAL BRIO 250 Service Manual Brio 250 Edition 02 2002 23 27 13 WIRING DIAGRAMS Espresso version wiring diagram Instant version wiring diagram...

Страница 24: ...is responsible for correct operations on a vending machine HACCP Directives EEC 93 43 and 96 3 Guidelines for correct application Ensure hygiene control with a special manual for correct hygiene pract...

Страница 25: ...y FIG 3 If necessary remove the containers empty them completely and clean thoroughly Remove the coffee unit clean and rinse with a fresh clean sponge damp with hot water FIG 5 Remove the sugar dispen...

Страница 26: ...lean thoroughly and rinse with a fresh clean sponge damp with hot water Remove the coffee dispensing assembly and clean thoroughly FIG 6 Remove the sugar dispensing spout and clean thoroughly FIG 7 Re...

Страница 27: ...o replace the unit with one already serviced Disassemble the mixers completely clean and wash using sanitising products especially the powder removal areas disassemble completely the wheel and check t...

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