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
. All rights reserved.
New dispenser “KORO” 07/10/2005 page 1 / 42
SERVICE MANUAL
New Dispenser
“Koro”
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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
. All rights reserved.
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
32
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 FRESHBREWER 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
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
. All rights reserved.
New dispenser “KORO” 07/10/2005 page 3 / 42
I
NSTANT VERSION (OPEN AND CLOSED DOOR)
E
SPRESSO VERSION (OPEN AND CLOSED DOOR)
1 -
PLANNED MODELS
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
. All rights reserved.
New dispenser “KORO” 07/10/2005 page 4 / 42
External water supply tank
Internal water supply tank
FRESH-BREWER VERSION (OPEN AND CLOSED DOOR)
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
. All rights reserved.
New dispenser “KORO” 07/10/2005 page 5 / 42
3 4 6 5 1 2 7 8 9 10 11
2 -
MAIN EXTERNAL COMPONENTS
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
. All rights reserved.
New dispenser “KORO” 07/10/2005 page 6 / 42
1 6 2 8 4
Fustino
fondi liquidi
Mixer
Ugelli mobili
Contenitori
solubili
2
.1
- MAIN INTE
RNAL COMPONENTS
13 14 17 16 15 12 18 19 20 21 22
Espresso
Version
26 27 28 29
23 24 25
Fresh
Brewer
Version
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
. All rights reserved.
New dispenser “KORO” 07/10/2005 page 7 / 42
VISTA
CON PORTA APERTA
2.2 REAR COMPARTMENT WITHOUT PROTECTIVE
CASING
Detail of CPU / actuation machine board
Detail of machine board
(FRESH-BREWER version only)
30 31 32 36 35 37 39 33 34 38
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
. All rights reserved.
New dispenser “KORO” 07/10/2005 page 8 / 42
Perspective view without protective casing
Side view without protective casing
– espresso boiler side
Side view without protective casing
open-top boiler side (FB – Instant)
42 40 44 41 43
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
. All rights reserved.
New dispenser “KORO” 07/10/2005 page 9 / 42
3 - LIST OF MAIN COMPONENTS
N° Ref.
DESCRIPTION
1 Lock
2 Cabinet
3 User interface
4 Selection keypad
5 Dispensing unit
6 Dispensing compartment
7 Back protective casing
8 Grid fuses
9 Main switch
10 Water inlet solenoid valve
11 Power supply 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 Solid waste container
22 Brewer unit Z3000
23 Coffee container for FB (powder)
24 Instant product container
25 Dispensing compartment
26 Hot water nozzle
27 FB unit SIGMA BREWER
28 Mixers
29 Protective casing
30 Actuation board
31 Steam exhauster
32 Boiler heating element actuation board
33 Grid fuses
34 Main switch
35 Sigma Brewer control board (FB version only)
36 Transformer fuses
37 Transformer
38 Grid noise suppressor
39 Power supply cable clamp
40 Coffee grinder unit
41 Espresso boiler compartment
42 Espresso boiler
43 Electromagnetic pump
44 Open-top boiler (Instant & Fresh brewer)
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
. All rights reserved.
New dispenser “KORO” 07/10/2005 page 10 / 42
4 – TECHNICAL DATA AND FEATURES
Height 500 mm
Width 508 mm
Depth 528 mm
Overall depth with door open 724 mm
Weight 28 Kg
Power supply voltage 230 V AC - 50 Hz
Installed power 1500 W (espresso)
2400 W (FB / I)
Payment systems used
The machine is pre-set to use
(by means of specific kits) payment systems
coin mechanisms and 24 V DC validators with protocols
EXECUTIVE 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
One open-top boiler for instant and Fresh-brew
versions
Temperature setting via software
SAFETY DEVICES
Main switch (at the back) – Main switch upon opening the door
Water inlet solenoid valve with overflow device
Manual-reset boiler safety thermostat
Manual-reset instant boiler anti-boiling thermostat
Air-break float block
Presence of liquid waste tray – Presence of coffee grounds tray
Boiler sensor control (short-circuit or failure)
Double heating and timing protection for:
Pump – Doser devices – Coffee unit ratiomotor – Coffee grinder – Mixer motors
Fuse protection for: Transformers, electronic boards and main wiring
CONTROLS
Presence of water
Presence of coffee
Operating temperature reached
508 500 528 331 724 331
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
. All rights reserved.
New dispenser “KORO” 07/10/2005 page 11 / 42
5 - ELECTRICAL SAFETY AND RELEVANT STANDARDS
The vending machine New Dispenser was designed and made in conformity with the
provisions of the following directives and related European standards:
MACHINE SAFETY DIRECTIVE EEC 98/37
EN 60529 UNI EN 292 –1-2 IEC 695-2-2
LOW VOLTAGE DIRECTIVE EEC 73/23; EEC 89/392; EEC
89/336
(the low voltage directive covers all equipment powered with voltage below 400 V AC)
The following European standards are applied:
EN 60335-2-14 EN 60335-2-15 EN 60335-2-24 EN 60335-2-75
ELECTROMAGNETIC COMPATIBILITY DIRECTIVE
EN 61000-3-3 EN 61000-4-2 EN 61000-4-3 EN 61000-4-4 EN 61000-4-5 EN 61000-4-11
---…----…---…---
With regard to Low Voltage and Electromagnetic Compatibility this vending machine was tested and
certified by a certifying body authorised by ministerial decree: IMQ.
It is therefore prohibited (on pain of voiding the warranty and the responsibility of the certification) to
replace 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 in the vending machine.
Install the vending machine outdoor or in any case in a place that is not protected from the weather.
Use the vending machine for purposes other than those indicated in the sales contract.
Connect the vending machine by means of extension cords or multiple sockets and/or adapters.
Use water jets for cleaning.
Then, it is also compulsory to:
Verify the conformity and suitability of power supply line and of the power outlet.
6 – REQUIREMENT FOR THE USERS
For safety purposes, three different operators with different qualifications have been defined.
USER
The user is practically the final user who buys the products from the machine.
The user must not have any access whatsoever to the inside of the machine.
PERSON RESPONSIBLE FOR REFILLING AND ROUTINE CLEANING
The person responsible for refilling has the key for opening the machine and is in charge of the refilling,
cleaning and internal hygiene of the machine.
He must not have any access to energised parts or moving parts.
MAINTENANCE TECHNICIAN
The maintenance technician must be a highly skilled person and must be aware of the electrical hazards in
the event of complex technical operations and can operate with the machine switched on and the door
open, using the safety key supplied.
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
. 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 reference as it may differ for each version.
REF. DESCRIPTION REF. DESCRIPTION REF. DESCRIPTION
1
Spouts assembly 2 Pump 3 Mixers
4
Boiler assembly 5 Brewer unit 6 Solenoid valve block
7
Bypass 8 Water supply tank 9 Volumetric counter
3 5 1 2 4 6
8 9 7
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
. 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 reference as it may differ for each version.
8 – HYDRAULIC LAYOUT INSTANT
REF. DESCRIPTION REF. DESCRIPTION REF. DESCRIPTION
1
Spouts assembly 2 Mixers 3 Solenoid valves
4
Boiler assembly 5 Water supply pump 6 Water supply tank
2 1 6 5 4 3
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