Coffee Queen PREZZO User manual

PREZZO
TECHNICAL MANUAL
TM_EN
Part No.: 1764154_01

2
PREZZO
CONTENT
CONTENT........................................................................................................................................................ 2
GENERAL........................................................................................................................................................... 3
Facts & weight .........................................................................................................................................................3
Dimension sketch.....................................................................................................................................................4
CLEANING PROGRAM............................................................................................................................ 5
Clean mixer...............................................................................................................................................................5
Clean valves...............................................................................................................................................................6
Clean grinder ............................................................................................................................................................7
Grinder EK-7 ............................................................................................................................................................8
Periodic maintenance ..............................................................................................................................................8
Safety...........................................................................................................................................................................8
Monthly maintenance..............................................................................................................................................9
Basic adjustment of the grinding finess ............................................................................................................ 10
ERROR CODE DESCRIPTION.......................................................................................................... 11
FLOW CHARTS.......................................................................................................................................... 13
Water system CQube series.............................................................................................................................. 13
ELECTRICAL SCHEMATICS................................................................................................................ 14
High current 3 x 400VAC 1N 6600W............................................................................................................. 14
High current 3 x 230VAC 4400W .................................................................................................................... 15
High current 230VAC 1N 2200W .................................................................................................................... 16
IO-board outputs.................................................................................................................................................. 17
EXPLODED VIEW...................................................................................................................................... 18
Machine ................................................................................................................................................................... 18
Door ........................................................................................................................................................................ 20
Tank 5L .................................................................................................................................................................... 22
Bean hopper........................................................................................................................................................... 24
SERVICE INTERVALS................................................................................................................................ 25
IMPORTANT!
INFO.
CAUTION!
INFO.
More INFO. INFO.
Some important information may appear in textboxes seen below
Note

3
PREZZO
GENERAL
Facts & weight
FACTS PREZZO
Built-in grinder Ye s
Drink options 9
Ingredient canister None
Bean hoppers 2
Brewing mechanism None
Cleaning function by smart card Ye s
Electronic temperature control Ye s
Adjustable coffee strength Ye s
Illumination of cup during brewing Ye s
Base cabinet: large grounds container None
Energy saving mode Ye s
Height,Width, Depth 865, 290, 532mm
Tank volume 5 Litres
Power supply 380VAC, 50/60Hz/6600W
Cold water connection ½” External thread
Water purication lter Option
MODEL/NAME WEIGHT
PREZZO 40kg

4
PREZZO
GENERAL
Model A B C D E F
PREZZO 865mm 290mm 532mm 160mm 200mm 240mm
D
A
BC
EF
Dimension sketch

5
PREZZO
Detailed cleaning instructions
Cleaning means
rinsing with water
and rotating the
whipper.
Cleaning of the
mixing bowl should
be performed once
per day.
Repeat the cleaning procedures 2-3 times to get a better
cleaning effect.
Note
Clean mixer
Insert technical service card
Step to Clean Machine Press Enter or press
Clean Machine
Cleaning Hot Key appears on the display
Open the machine door.
Put a container that holds at least 0.5 litres under the outlet for hot drinks.
Press button on the cleaning panel. (See fig.A)
The machine will now clean the mixing bowl for 5 seconds.
Close the door and remove technical service card to return to normal mode.
A
CLEANING PROGRAM

6
PREZZO
Repeat the cleaning procedures 2-3 times to get a better
cleaning effect.
Note
Clean valves
Insert technical service card
Step to Clean Machine Press Enter or press
Clean Machine
Cleaning Hot Key appears on the display
Open the machine door.
Put a container that holds at least 0.5 litres under the outlet for hot drinks.
Press button on the cleaning panel. (See fig.A)
The machine will now clean the dispenser valves for 5 seconds.
Close the door and remove technical service card to return to normal mode.
Cleaning entails that
the valves “knock”
off any lime scale
and other particles
that may get stuck
in the cylinders and
flushing them with
water.
A
CLEANING PROGRAM
Detailed cleaning instructions

7
PREZZO
Detailed cleaning instructions
Clean grinder
CLEANING PROGRAM
If machine have two grinders, follow same procedure but use
button instead (Grinder 2) (See fig. B)
Grinder 1= left grinder
Grinder 2= right grinder
Note
Insert technical service card
Step to Clean Machine Press Enter or press
Clean Machine
Cleaning Hot Key appears on the display
Open the machine door.
Remove the brewer from its position and close bean stop in bottom of the
bean hopper.
Start grinder by pressing button (Grinder 1), this is a “Push and Hold”
function, the grinder will run as long as the button is pressed. (See fig.A)
Run grinder until no powder comes out of the grinder outlet, approx 10sec.
Remove the bean hopper and pour out the remaining coffee beans.
Reassemble bean hopper and fill with a cap GRINDZ cleaning tablets and re-
open bean stop. (See fig.C)
Start the grinder again by pressing button approx 10sec.
Run until no more cleaning powder come out of the grinder.
Refill the bean hopper with fresh coffee beans.
Reassemble the brewing mechanism.
Close the door and remove technical service card to return to normal mode.
Make one cup of brew coffee and throw it away.
Tips: Keep a cup
under the grinder
outlet during the
cleaning process. A
B
Cleaning with
grindz cleaning
tablets, Every
month
(Product No.
E1001001)
fig.C

8
PREZZO
Grinder EK-7
MAINTENANCE AND CARE
Periodic maintenance
Each month: clean outlet, grinding house and grinding discs.
Monthly cleaning of grinder using GRINDZ cleaning tablets (item no. E1001001).
Bean Stop
Grinder
Grinder outlet
Grinder Adjustment Wheel
Fixation Screw
Bean Hopper
Safety
Please read and observe the following service instructions carefully. Non-observance can result
in damage to the grinder as well as in healththreatening risks for the user.
All installations shall been done by an qualified personnel.
Symbols
Safety instruction:
In case of non-observance, extreme risk of accidents exists.
General instruction:
In case of non-observance, the device can become damaged or optimum operation not be
guaranteed.
Safety instructions
The grinder is only allowed to be used to grind whole coffee beans. Ground coffee is never
allowed to be filled into the input-shaft.
Do not carry out any modifications or changes on the grinder. In case for non-observance,
the manufacturer shall be liable for resulting damain no case whatsoever.
Never put your fingers or objects into the rotating grinding mechanism inside the input-
shaft.The grinder must not be operated when turning parts are accessible!
Make sure, that the power cannot be turned on when working on the built-in grinder!
In order to avoid damages, do not use power tools or cordless electric screwdrivers for any
work on the grinder.

9
PREZZO
MAINTENANCE AND CARE
Grinder EK-7
Monthly maintenance
Approximately every month the grinder housing and spout should be inspected for coffee residues
and obvious damages.
Fig.1 Fig.2
A
Proceed as follows:
Remove bean container. Remove all coffee residues from the spout and the grinder housing by
grinding through all coffee beans and using a vacuum cleaner to remove all residues.
Remove the two Phillips screws (A, See fig.1) on the side of grinder housing lid.
Carefully detach the grinding housing. Fig.1
Note its position for correct reassembly. Do not alter the adjustment of the grinding discs.
Clean the inside of the grinder housing with a soft brush. (See fig.2)
When reassembling the grinder housing, again check for the correct position and do not alter the
grind adjustment of the discs. Fasten the two Phillips screws.

10
PREZZO
MAINTENANCE AND CARE
Grinder EK-7
Basic adjustment of the grinding finess
Fig.3
CW for
Finer
Grinding
CCW for
Coarser
Grinding
The grinder adjustment can be easily reached through the space between the bean hoppers, before
adjusting loosen the fixation screw in front of the adjuster wheel to be able to rotate it.
To adjust the coarseness for left grinder, rotate the adjuster wheel towards you for coarser
grinding. For finer grinding rotate the wheel away from you.
To adjust the coarseness for right grinder, rotate the adjuster wheel towards you for finer grinding.
For coarser grinding rotate the wheel away from you.
Take into consideration that after the adjuster is moved, the effect is not immediate, it takes about
1 coffee cycle for the new coffee grounds to reach the outlet and into the brewer. So to test the
new adjustment, observe the second coffee after the change.
The finer the grinding, the slower the coffee will come out, and longer time will be needed for the
extraction of the espresso and vice versa.

11
PREZZO
Overcurrent
Group 1:1 = Brewing unit (0,95A limit)
Espresso unit (1,5A limit)
Group 1:2 = Other components (Fan,
Valves, Relays Etc..) (1,5A limit)
Group 1:3 = Mixer 1 (3,5A limit)
Group 1:5 = Mixer 2 (3,5A limit)
Group 2:1 = Milk pump (1,5A limit)
Message is shown if one of the software fuses have been
trigged. Caused by a component using too much current (A).
You can run each component in the “Hardware Test” menu
and the message will show when you turn on the compo-
nent that is using too much current.
ERROR:
Water Supply
Message will show if the inlet valve has been open for more
than 3 minutes and the machine still have not acquired cor-
rect water level.
Action: Check that the water to the machine is turned on,
Check the levelsensor, test function of the inlet valve in
“Expert Settings”
ERROR:
Tempsensor
Message will show if the NTC sensor is broken or is out
of range of its resistance curve, also if cables have loosened
from its connectors.
Action: Replace NTC sensor, check cable connection on the
NTC and PCB board.
ERROR:
Levelpins
Message will show if the cables to the water level high &
low have been connected to the wrong levelpin.
Action: Swap cables to the levelsensor
ERROR:
Check Heater
Message will show if the machine have not reached working
temperature within 14 minutes from startup.
Action: Check Overheating protection, cables to the ele-
ment, solid state relay, signal from IO-board to solid state
when you know the machine should heat, you can also force
the element to run in “Expert Settings”.
ERROR:Brewer
C.Door Press E
Message will show when you interrupt a brewing cycle, eg.
open the door when the machine is producing coffee.The
machine needs to reach home-position before producing
new drink.
Action: Press E, check door sensor, brewmec sensor
Clean brewfi lter
Message will show if the brewer motor uses more than
0,95A for filter brewer, 1.5A for espresso brewer.
Action: Check brewfilter if clogged, brew chamber is moun-
ted in wrong position, brewer motor is broken.
ERROR CODE DESCRIPTION

12
PREZZO
ERROR CODE DESCRIPTION
Peripheral
Hardware Error
This message will appear if you have loaded a faulty recipe
into the machine, the IO-Board is broken and does not get
connection with the UcMerisc board.
Usually this message appears if you eg. have loaded a stan-
dard recipe into a machine using pay system.
Make sure you are using the right recipe and reload.
Memory Error:
Reload Recipes
There is no recipe loaded on the UcMersic board.Transfer
of the recipes have been interrupted and not completed in
UcLoader. Memory on the UcMersic board is broken.
Fatal Error
Contact Service
Multiple Overcurrent messages at the same time, or
shortcut on the IO-Board, try to run components in
“Hardware Test” and locate faulty components, replace the
IO-Board if no one is found.
Smartcard Error:
Unknown Card
The smartcard is not programmed, chip on the smartcard
is damaged, card reader is broken or broken cable between
card reader and UcMerisc board.
Action: Insert and remove the card repeatedly, if the mes-
sage is shown every time, try another card. If the error
remains replace the card reader.
Smartcard Error
Wrong Pincode Chip on the smart card have been damaged, replace card.
Pay Error
Type XXX
IO-Pay board is reporting error from the payment device,
check coinchanger or cashflow device.

13
PREZZO
Water system CQube series
FLOW CHARTS
Cold water unit is not a standard feature in the machine it’s only an option.
Note
Inlet
Cup
Tea water
Mixer
Waste bin
Tank 960C
Overll
NTC
Te a
Level pin
Outlet 2
Decanter
Outlet 1
Heater elements

14
PREZZO
High current 3 x 400VAC 1N 6600W
ELECTRICAL SCHEMATICS

15
PREZZO
High current 3 x 230VAC 4400W
ELECTRICAL SCHEMATICS
L1
L1
L1
L3
L3
L2
L2

16
PREZZO
High current 230VAC 1N 2200W
ELECTRICAL SCHEMATICS

17
PREZZO
IO-board outputs
ELECTRICAL SCHEMATICS
Black
Blue
Yellow green
HOT
WATER IN
(inlet tank)
HOT WATER
OUT (TEA)
1 3 5 7 9 11 13 15
J3 Neltron 5566, 16POL (OUTPUTS 24V)
J1 Neltron5566, 22POL (OUTPUTS 24V)
1 3 5 7
2 4 6 8
1 3 5 7
2 4 6 8
5V
GND
GND
X RESET
1 3
2 4 6 8 10 12 14 16
2 4
HOT WATER
MIXER
1 3 5 7 9 11 13 15 17 19 21
2 4 6 8 10 12 14 16 18 20 22
FAN
HEATER TANK
GRINDER 1 GRINDER 2
DOOR SWITCH
DRIP TRAY HOT WATER
TEMP.
1 3 5 7 9 11 13 15 17 19 21 23 25
2 4 6 8 10 12 14 16 18 20 22 24 26
WATER LEVEL HIGH
J6
Fuse 1 Fuse 2 Fuse 3
J5
J2
ADR IN
230 AC to 24 VDC
L N GND -V -V +V +V
J4 BOXHEAD 24POL (INPUTS)
24V
24V
RX TX
ADR OUT
WATER LEVEL LOW
OUT 18
OUT 17
OUT 14
OUT 13
OUT 16
OUT 15
IN 19
IN 20
IN 21
IN 22
IN 23
IN 24
IN 2
IN 1
IN 4
IN 3
OUT 8
OUT 7
OUT 10
OUT 9
OUT 2
OUT 1
OUT 15
OUT 16

18
PREZZO
Machine
EXPLODED VIEW
Drawing
37
36
25
24
35
38
23
34
33
32
19
31
17
16
15
13
12
01
02
03
05
04
06
20
40
39
41
21
22
14
10
28
27
26
30
07
08
09
09
11
18
18
29

19
PREZZO
Machine
POS. PCS Part No. Description
01 1 160841 Microswitch or 710070 with holder
02 1 7160003 Bean hopper left
03 1 7160004 Bean hopper right
04 1 1604384 Fuse 5AT 5x20
05 1 1604111 PCB MAIN BOARD IO-TE
06 1 1031652 Power supply 150W
07 1 260755 Water tank 5L 3-phase complete
08 1 1604151 Centrifugal fan 24V 0.24A
09 3 160536 Gasket rubber NBR(Rubber trp 30.0)
10 1 160549 Connector FV122/B
11 1 1604174 Adjustable steam tube, white
12 2 1608281 Magnet 39x13x6
13 1 1604757 Grinder EK-7 left
14 1 1604758 Grinder EK-7 right
15 1 1264098 Grinder outlet left
16 1 1264099 Grinder outlet right
17 1 120497 Bulkhead adapter
18 1 120487 Steam trap
19 1 1201411 Angle outlet
20 1 120465 Rubber lead-in TPG 20.5
21 1 1031804 Chassi connector
22 1 1031302 Tea water pipe
23 1 710036 Drip tray level set
24 1 1605651 PG complete (PG16)
25 1 160801-04 Rocket switch single(orange)
26 1 1402581 Screw M4X10 black plastic top
27 1 252109 Drain panel
28 1 1602413 Relay 24V
29 3 1604203/1604201 Solid state 25A
30 3 1206581 Seal solid state
31 1 1264114 Outlet pipe insert
32 1 1364023 Outlet pipe prezzo
33 2 1402163 Screw M4x8
34 1 1105358 Trash bin
35 1 1206371 Valve inlet 2.5L /min 24V
36 4 120316 Adjustable foot
37 1 1505042 Inlet hose
38 1 1605241 Power cord 3-phase 1.8m
39 1 1264161 Gasket DIA23.5mm x 15mm D3mm
40 1 1264160 Gasket DIA18mm x 9mm D2mm
41 1 2760094 Gasket set for inlet hose
EXPLODED VIEW
Spare parts list

20
PREZZO
Door
EXPLODED VIEW
Drawing
12
14
23
21
13
22
25
27
28
29
26
31
32
33
34
10
11
02
03
04
06
07
05
20
08
01
05
07
06
19
30
24
15
03
16
09
17
18