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NW Global Vending – TECHNICAL MANUAL

This document was produced by MARK AC for the exclusive use of the technical personnel in the after-sales service.

. No part of this document may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING

New dispenser “KORO”

07/10/2005

page 2 / 42

TABLE OF CONTENTS

1
2

2.1
2.2
3

4
5
6
7

8
9
10

11
12
13
14

15
16
17

18
19
20

21

22
23

24
25

26
27

28
29
30
31

PLANNED MODELS

MAIN EXTERNAL COMPONENTS

MAIN INTERNAL COMPONENTS
REAR COMPARTMENT WITHOUT PROTECTIVE CASING
LIST OF MAIN COMPONENTS

TECHNICAL DATA AND FEATURES

ELECTRICAL SAFETY AND RELEVANT STANDARDS
REQUIREMENT FOR THE USERS

HYDRAULIC LAYOUT OF ESPRESSO VERSION

HYDRAULIC LAYOUT OF INSTANT VERSION
HYDRAULIC LAYOUT OF FRESH BREWER VERSION
HYDRAULIC LAYOUT OF VARIABLE CHAMBER ESPRESSO

INTERNAL LAYOUTS
ELECTRICAL SYSTEMS – CONNECTIONS
CONNECTION OF ELECTRONIC BOARDS

WIRING DIAGRAMS

ACTUATION BOARD – CONFIGURATIONS
SIGMA BREWER CONTROL BOARD
PUSH-BUTTON BOARD

BOILER CONTROL BOARD
AIR-BREAK AND BOILERS (INSTANT & ESPRESSO)
PUMPS AND BYPASS

ESPRESSO COFFEE, FRESH-BREWER UNIT & SIGMA
BREWER
SPOUTS ASSEMBLY
POWDER PRODUCT CONTAINER AND DOSER DEVICES

ASSY.

MIXER UNIT

COFFEE GRINDER AND DOSER DEVICE ASSEMBLY

POWDER AND LIQUID DOSE TABLES
ROUTINE AND EXTRAORDINARY MAINTENANCE
PROGRAM

TROUBLE-SHOOTING

HACCP DIRECTIVE

DAILY CLEANING AND HYGIENE PROGRAM

DAILY CLEANING AND HYGIENE PROGRAM FRESH-

BREWER UNIT

MONTHLY CLEANING AND HYGIENE PROGRAM

Pag. 3 - 4
Pag. 5

Pag. 6
Pag. 7-8
Pag. 9

Pag. 10
Pag. 11
Pag. 11
Pag. 12

Pag. 13
Pag. 14
Pag. 15

Pag. 16
Pag. 17
Pag. 17- 18
Pag. 19

Pag. 20-21
Pag. 22
Pag. 23

Pag. 23
Pag. 24 - 26
Pag. 27

Pag. 28 -29

Pag. 30
Pag. 31

Pag. 32
Pag. 33

Pag. 34
Pag. 35

Pag. 36 - 38
Pag. 39
Pag. 40
Pag. 41

Pag. 42

Содержание Koro

Страница 1: ...les service No part of this document may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING All rights reserved New dispenser KORO 07 10...

Страница 2: ...LAYOUT OF FRESH BREWER VERSION HYDRAULIC LAYOUT OF VARIABLE CHAMBER ESPRESSO INTERNAL LAYOUTS ELECTRICAL SYSTEMS CONNECTIONS CONNECTION OF ELECTRONIC BOARDS WIRING DIAGRAMS ACTUATION BOARD CONFIGURAT...

Страница 3: ...in the after sales service No part of this document may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING All rights reserved New dispe...

Страница 4: ...the after sales service No part of this document may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING All rights reserved New dispens...

Страница 5: ...technical personnel in the after sales service No part of this document may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING All right...

Страница 6: ...may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING All rights reserved New dispenser KORO 07 10 2005 page 6 42 1 6 2 8 4 Fustino fo...

Страница 7: ...ent may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING All rights reserved New dispenser KORO 07 10 2005 page 7 42 VISTA CON PORTA A...

Страница 8: ...ument may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING All rights reserved New dispenser KORO 07 10 2005 page 8 42 Perspective vie...

Страница 9: ...ply cable 12 Grinder doser device 13 Instant product container 14 Mixers 15 Door 16 Coffee beans door 17 Coffee beans hopper 18 Decaf coffee door powder 19 Water supply tank espresso 20 Drip tray 21 S...

Страница 10: ...E BDV MDB Water supply From the mains with a water pressure of 5 to 85 N cm2 BASE VERSIONS Espresso Instant Fresh brewer INSTALLED BOILERS AND TEMPERATURE One pressure boiler for the espresso version...

Страница 11: ...any electrical component with non original parts during the routine and extraordinary maintenance operations Therefore it is also prohibited to Tamper with or deactivate the safety systems installed i...

Страница 12: ...the prior permission of NW GLOBAL VENDING All rights reserved New dispenser KORO 07 10 2005 page 12 42 7 HYDRAULIC LAYOUT ESPRESSO ESPRESSO VERSION COMPONENTS N B The diagram shown is given only as a...

Страница 13: ...ly or entirely without the prior permission of NW GLOBAL VENDING All rights reserved New dispenser KORO 07 10 2005 page 13 42 INSTANT VERSION COMPONENTS N B The diagram shown is given only as a refere...

Страница 14: ...without the prior permission of NW GLOBAL VENDING All rights reserved New dispenser KORO 07 10 2005 page 14 42 9 HYDRAULIC LAYOUT FRESH BREWER COMPONENTI VERSIONE FRESH BREWER N B The diagram shown i...

Страница 15: ...VARIABLE CHAMBER ESPRESSO COMPONENTS OF ESPRESSO VERSION WITH VARIABLE BREWING CHAMBER This diagram is used exclusively for variable chamber brewer units as it differs also with regard to the electri...

Страница 16: ...ly or entirely without the prior permission of NW GLOBAL VENDING All rights reserved New dispenser KORO 07 10 2005 page 16 42 11 INTERNAL LAYOUTS EXAMPLES OF INTERNAL LAYOUT NOTE THE FOLLOWING I LAYOU...

Страница 17: ...as standard feature and chosen among the following types 1 HO5 RN F copper with a 3 x 1 5 mm2 section 2 HO5 V V F 3 HO5 V V F Fitted with a fixed SCHUKO plug NB it is possible that for some specific...

Страница 18: ...ights reserved New dispenser KORO 07 10 2005 page 18 42 BOARD CONNECTION DIAGRAM Signal DESCRIPTION SAL Power supply card SM FB Sigma brewer control board SM Actuation and control board CCG Mechanical...

Страница 19: ...echnical personnel in the after sales service No part of this document may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING All rights...

Страница 20: ...controls the actuations the input signals and the boiler board The 15 VAC voltage necessary for operating the board is supplied by the transformer protected by a 125 mAT fuse on the primary winding a...

Страница 21: ...esh Brewer solenoid valve K 7 Coffee brewer motor Not used K 8 Discharge solenoid valve 2 Not used K 9 Instant prod solenoid valve 1 Instant prod solenoid valve 1 K 10 Doser device motor 1 Doser devic...

Страница 22: ...s functions The board also controls the dispensing of fresh product and the flow diverter solenoid valve from spout external nozzle The 24 VAC voltage necessary for operating the board is supplied by...

Страница 23: ...t used 3 To mechanical counter optional 4 To actuation CPU board 5 Input 6 Display adjustment trimmer 7 To display 8 12 Vdc validators 9 Not used 10 RS232 serial port 11 Not used 12 Programming access...

Страница 24: ...from the mains and in such event it allows the completion of the current selection Furthermore in the espresso version it serves the purpose of have a water reserve at atmospheric pressure so that th...

Страница 25: ...only the open top instant boiler also fitted with a new design level control system 3 Fresh brew version fitted with only the open top instant boiler used in the Instant version The espresso boiler i...

Страница 26: ...lure to the control system and boiler without water thermostat 1 is triggered at approximately 125 C and disconnects the power supply in order to reactivate everything the malfunction must be identifi...

Страница 27: ...sh brew The pump has overheating protection in case of continuous or dry operation by means of a 90 C self reset klixon It is fitted with a by pass at the outlet to ensure correct and consistent dispe...

Страница 28: ...sions for the purpose of increasing the temperature of the first coffee A specific brewer unit for filtered coffee SIGMA BREWER is used in the FB version For further details on the functional units re...

Страница 29: ...9 42 DETAIL OF SIGMA BREWER UNIT BEING REMOVED DETAIL OF BREWING CHAMBER BEING REMOVED DETAIL OF LOWER FILTER BEING REMOVED SIGMA BREWER UNIT REMOVED FROM THE VENDING MACHINE BREWING CHAMBER AND FILTE...

Страница 30: ...ird party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING All rights reserved New dispenser KORO 07 10 2005 page 30 42 22 SPOUTS ASSEMBLY Because of the size of t...

Страница 31: ...s for maintenance as well as quick changes to the layout by means of preassembled modules 23 DOSER DEVICES AND POWDER PRODUCT CONTAINERS Standards components are used already adopted in other applicat...

Страница 32: ...re newly designed although many components are developed from the ones used in previous models More specifically the release and opening system of the external assembly is new while the motor and the...

Страница 33: ...creasing or decreasing such value the amount increases or decreases It is therefore possible to set selections with different coffee doses It is therefore clear that it is very important to keep the a...

Страница 34: ...iven as a guideline as there are many variables that can affect the accuracy The liquid dose is determined by the flow meter pulse counting volumetric counter Both versions Instant and Espresso use an...

Страница 35: ...ghtness in the axial bush and the correct assembly if necessary replace 2 Check the wear of the motor brushes and clean off the excess of carbon powder 50 000 annual Boiler and solenoid valve assembly...

Страница 36: ...means of a special sensor Check the presence of coffee Check the distance between the grinding wheels Check the presence of the sensor Check the functioning of the relay K16 The display indicates the...

Страница 37: ...ating control systems on the winding were not triggered That the sensor works correctly Check the activation of relay K16 The display indicates the message ESPRESSO UNIT If the unit does not reach the...

Страница 38: ...ult one For espresso only The coffee lacks body and is dispensed too quickly Coffee dose too small or ground too coarsely The dose is calculated using an algorithm that counts the number revolutions o...

Страница 39: ...ing schedule for the vending machine hygiene condition Important notes For a correct use of the machine the directives must be fully applied The operator is responsible for correct operations on a ven...

Страница 40: ...ed under the mixer rinse it and eliminate any residue FIG 4 Slide out the external mixer assembly and disassemble it FIG 5 6 clean and rinse out thoroughly all residue Remove the brewer unit clean and...

Страница 41: ...and rinse the tank FIG 1 Remove the coffee grounds container empty it and rinse it thoroughly FIG 2 Remove the brewing chamber and disassemble it clean and rinse under hot current water FIG 3 5 Remov...

Страница 42: ...pletely remove the upper piston and the lower brewing chamber FIG 3 FIG 4 carry out the maintenance operations indicated in the specific manual and more specifically clean or replace the filters and l...

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