Kees van der Westen Slim Jim mirage User manual

Slim Jim User manual page 0
User manual Slim Jim
espresso machines
(Original instructions)
Document ID: Sup-Tum-Eng Date of issue: December 20, 2018 Revision date: September 10, 2021

CONTENTS
Slim Jim User manual page 1
Designation............................................................................................................................................ 2
Precaution.............................................................................................................................................. 2
Safe operation........................................................................................................................................ 2
Water Quality ......................................................................................................................................... 3
Parts identification ................................................................................................................................ 4
Operational features.............................................................................................................................. 5
MAIN switch......................................................................................................................................... 5
HEAT switches .................................................................................................................................... 5
Circuit breakers ................................................................................................................................... 5
Bastone unit......................................................................................................................................... 6
Touchpad............................................................................................................................................. 6
Temperature display............................................................................................................................ 7
Shot time.............................................................................................................................................. 7
Pressure gauge ................................................................................................................................... 8
Dispensing hot water........................................................................................................................... 8
Steaming.............................................................................................................................................. 9
Pre-infusion cylinder............................................................................................................................ 9
Control panel ....................................................................................................................................... 10
Change individual boiler to ECO and back........................................................................................ 10
Go to stand-by................................................................................................................................... 11
Sensor malfunction............................................................................................................................ 12
Technical assistance......................................................................................................................... 12
Start automatic back-flush program .................................................................................................. 13
Flow meter error ................................................................................................................................ 13
Use external temperature sensor (option)......................................................................................... 14
Program volumes with touchpad or Bastone..................................................................................... 15
Change settings in the Barista menu................................................................................................ 16
Sub-menu TEMPERATURE SETTING............................................................................................. 17
Sub-menu VOLUME SETTING......................................................................................................... 17
Sub-menus TIMED ON/OFF and TIME/DATE.................................................................................. 18
Pump-pressure .................................................................................................................................... 19
Check................................................................................................................................................. 19
Adjust................................................................................................................................................. 20
Machine cool-down ............................................................................................................................. 20
Daily to weekly maintenance.............................................................................................................. 21
Use hot water from the machine ....................................................................................................... 21
Clean body ........................................................................................................................................ 21
Clean steam wand............................................................................................................................. 21
Remove filter basket.......................................................................................................................... 21
Clean filter holder .............................................................................................................................. 22
Back flush group................................................................................................................................ 22
Clean group screen, check and replace group seal.......................................................................... 23
Clean group dispersion plate............................................................................................................. 24
Replace dispersion base and plate ................................................................................................... 25
Descaling........................................................................................................................................... 25
Check machine condition, report malfunctions............................................................................... 26
Free-flowrate ..................................................................................................................................... 26
Heating element indicator lights ........................................................................................................ 26
Check pressure gauges..................................................................................................................... 27
Opening pressure of expansion valve............................................................................................... 27
Consistency in programmed volumes ............................................................................................... 27
External temperature probe (option) ................................................................................................. 28
Recommended maintenance and service scheme .......................................................................... 29
Service Record .................................................................................................................................... 30
Contact information ............................................................................................................................ 32

Slim Jim User manual page 2
Designation
This manual applies to the Slim Jim Mirage 2-group (Duette) and 3-group (Triplette) espresso
machines with touchpad or Bastone operation manufactured by Kees van der Westen Espressonistic
Works B.V. A separate rotational pump with electric motor is part of the appliance.
Precaution
Hot surfaces!
Parts of the machine will be hot when the machine is turned ON.
•The cup tray is equipped with an active heating element and can reach temperatures up to 75°C.
•The metal groups are intended to radiate heat and can reach a set-temperature of up to 99°C.
Hot water and/or steam!
When the machine is heated up, hot water and steam can escape from various parts of the machine
upon manipulation of a corresponding interface (valve, switch, touch-button, …).
•Activating the group will lead to water being dispensed with a temperature of up to 99°C.
•Activation of the hot water dispense can lead to steam escaping with temperatures up to 130°C as
well.
•Activating the mix-water dispense can lead to overheated water (steam) being dispensed when
the cold-water addition is not set correctly.
•Opening the steam tap will start steam escaping from the steam wand-tips, the steam can reach
temperatures up to 130°C.
Safe operation
•The espresso machine has to be placed in a horizontal position on a sturdy and flat surface.
•If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified persons in order to avoid a hazard.
•The new hose-sets supplied with the appliance are to be used. Old hose-sets should not be
reused.
•Intended use of the appliance is restricted to well-trained personnel only.
•The appliance must be installed in locations where it can be overseen by trained personnel.
•The appliance may not be left unattended when there is the possibility that children and/or
vulnerable people can reach the machine.
•This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand the
hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall
not be made by children without supervision.
•The mains electricity the appliance is connected to must include a residual-current-circuit-breaker
of 30 mA.
•The appliance may not be cleaned with the aid of a water jet.
•The appliance is not suited for outdoor use.
•Ambient temperature for correct operation of the appliance is 10-30°C (50-86°F).
•If ambient temperature falls below 5°C (41°F), keep the machine at ECO or ON to prevent freezing
of water inside the machine.
Note that the external rotational pump should be kept above freezing point of water as well.
Whenever the machine and/or pump have suffered freezing conditions, ask a technician to start-
up the appliance again.
•It is advised to install a leak prevention system as the appliances is directly connected to the water
mains. An unattended leak can cause serious damage to the premises.

CONTENTS
Slim Jim User manual page 3
Water Quality
Have a water treatment system installed and its function checked regularly. The treatment system
should at least have a carbon block that not only traps drug-remnants, Chlorine and organic
compounds but also prevents rigid particles >30 μm to enter the pump.
Optimally, the water fed into the espresso machine would fall in the higher part of the SCA “core
zone”, see Figure 1, and have a pH of 7.0-7.5 (at 25°C).
Figure 1. Alkalinity vs-Total Hardness graph showing the SCA “core zone” in green outline.
Besides the Alkalinity and Total Hardness requirements, the water should have the following
properties:
Parameter
Target
Acceptable range
unit
Total Hardness
72
50-175#
ppm
Total Alkalinity
40*#
40-75#
ppm
pH
7.0*
6.5-7.5*, 6.5-8.0#
--
Electrical conductivity
< 3 times Alkalinity
(in ppm)#
μS/cm1
Total Dissolved Solids
150*
75-250*
ppm1
Calcium Hardness
51-68*
17-85*
ppm
Sodium
10*
at or near 10*
ppm
Sulphate
30
0-50
ppm
Chloride
0
0-30
ppm
Silica
0
0-5
ppm
Odour and colour
clean*, fresh*, odour free*, clear*
Taste influencing organic compounds*#
not present
Chlorine#, Hypochlorite#, Chloramines#
Iron#, Lead#, Manganese
* SCAA Technical Standards Committee, 2009: water properties for optimum taste.
# Values from “The SCAE water Chart”(2015?).
Table 1. Showing parameter values for water meant to brew coffee with.
Water with properties that lie within the SCA “core zone”and has correct pH combines technical
aspects enabling a safe operation and sensory aspects yielding a high quality brew, provided the other
parameters are met as well. High brew-ratio’s, as for espresso, shift the optimum of total hardness and
alkalinity towards higher values within the core zone.
1
The conversion from electrical conductivity to TDS depends heavily on the water composition and temperature, yielding results
that can vary significantly. Additionally, even if the estimated TDS value is accurate, it does not contain any information about
what the TDS is actually made up of.
0
20
40
60
80
100
120
020 40 60 80 100 120
Total Hardness (ppm CaCO3)
Alkalinity (ppm CaCO3)
SCA
core
zone

WELCOME
Slim Jim User manual page 4
Parts identification
Figure 2. Showing the main operational parts of the Slim Jim Duette Bastone version. The Slim Jim
Triplette has three groups but its functions are identical to the Duette. On the Touchpad version, the
group brewing handle units are replaced with touchpads (see Figure 5).
1. Right hand group 3-digit display (shot-timer and/or temperature)
2. Main switch (switches power to everything but the heating circuits)
3. Heat switches 1, 2 and 3 (switches power to steam boiler and group heating)
4. (Centre group 3-digit display; only on Triplette: shot-timer and/or temperature)
5. Capacitive interface and display of controller
6. Left hand group 3-digit display (shot-timer and/or temperature)
7. Volume switch (left group)
8. Program & continuous button (left group)
9. Group indicator light (left group)
10. Group brewing handle (left group)
11. Group (left)
12. Two-stage pre-infusion cylinder
13. Hot water spout
14. Hot water toggle switch (hot water only)
15. Hot water button switch (mix-water)
16. Coffee brew pressure gauge (right group)
17. Steam valve (right)
18. Steam wand (right)
A. Cup-rack
B. Drip-tray
Not visible on this photo:
•Green indicator lights for heating spirals (one for each spiral; see page 26)
•Connection for external temperature probe (see page 28).
10
11
12
1
2
B
A
3
7
8
9
17
18
(4)
5
6
16
13
15
14

USER MANUAL - operation
Slim Jim User manual page 5
Operational features
MAIN switch
Notes!
The machine will re-start over and over again when the capacitive screen is touched during start-up.
Dirt and remnants of detergent may unexpectedly activate the capacitive screen. If the machine does
not start up properly, clean the surface of the capacitive screen with plain water and a soft cloth.
The main switch (see Figure 3) is located at the right hand side of the machine and has 2 positions:
DOWN=OFF Power to the controller is disconnected. When the machine is functioning correctly, all
heating is also off, whatever the position of the heat switches. With a malfunction it is
however possible that one (or more) heating elements/sections are still active.
UP=ON The machine is connected to the electric mains, but power to the heating elements will
remain disconnected as long as the heat switches are still off. The machine functions
but the boilers will not heat. The optional cup-heater may function if it is turned on.
Figure 3. Showing the three HEAT switches, the MAIN switch and a blank TEMP/TIMER (3-digit)
display.
HEAT switches
Heating power to the machine is split in three different circuits. Each circuit can be (dis-)connected
individually. The heating element of the steam boiler consists of a lower, middle and upper section.
Notes!
The boilers will not heat up when the HEAT switches are in the OFF position.
With the main switch in OFF position, the boilers should not heat up, irrespective of the position of the
HEAT switches. With a malfunction, heating may be ON even with the main switch in OFF position.
1. HEAT 1 powers the left group heating element and the lower section of the steam boiler heating
element.
2. HEAT 2 powers the central (Triplette) or right (Duette) group heating element and the middle
section of the steam boiler heating element.
3. HEAT 3 powers the right group heating element (Triplette only) and the upper section of the steam
boiler heating element.
Circuit breakers
The machine has an individual breaker for each of the four electrical circuits in the machine (main-
circuit plus 3 heat-circuits). When one of the circuits has a malfunction (electric short), the
corresponding breaker will cut power to that circuit only. If the main-circuit breaker is activated the
machine will be completely inoperable but if a single heat-circuit breaker is activated the rest of the
machine will remain functional.
The circuit breakers are located within the electrics tray and cannot be accessed by the barista. If a
circuit breaker is activated, have a technician check and repair the machine as soon as possible.

USER MANUAL - operation
Slim Jim User manual page 6
Bastone unit
A Bastone unit includes a brew handle, an
indicator LED, a momentary push button and a
two-position toggle switch.
Shortly pressing the brew handle down will start
the pre-set volume determined by the toggle-
switch. A pre-set volume can be stopped before
the volume is reached by shortly pressing the
brew handle again.
When the group is active, the indicator LED is lit.
The push button is the continuous (“on/off”)
switch with programming function.
The toggle switch determines which of the two
possible pre-set volumes is active.
Figure 4. Bastone unit.
The push button underneath each brew handle is the continuous (“on/off”) switch equivalent to button
#5 on a touchpad (see below). A continuous dispense can also be stopped by shortly pressing the
brew handle. The indicator light will flash continuously when the controller is in programming mode.
Touchpad
Note!
The main controller can be re-set by a procedure that makes use of the touchpad in combination with
the main switch. You are advised NOT to perform this procedure at any time as you will probably need
a technician to re-program the controller afterwards.
button
A touchpad has 5 momentary push buttons with internal
indicator LED.
The upper button (, 2 LEDs) is an on/off group switch
with programming function.
Buttons - are used to start a pre-set volume. A
pre-set volume can be stopped before the volume is
reached by shortly pressing any button.
When the group is active, the indicator LED of
corresponding button is lit.





Figure 5. Touchpad.(NB: the appearance of the push buttons has changed in 2021.)
Press the upper button briefly to open the group valve and activate the pump, the LED in the button
will light up. Press it briefly again to de-activate the pump and group valve, the LED will go off.
Press-hold the upper button for approximately 10 seconds to get the controller in programming mode
such that shot-volumes (and hot water timer) can be programmed. The indicator LED of the upper
button will flash. Press shortly again to leave programming mode.
For shot-volume programming with Bastone units or touchpads see page 15.
start/stop
volumes
volume 2 ←
→volume 1
on/off group
(program)
indicator LED

USER MANUAL - operation
Slim Jim User manual page 7
Temperature display
Each boiler is equipped with its own temperature controlling system. Measured temperature values
can be displayed 2-ways: on the control panel and/or on the large 3-digit displays underneath each
group (see Figure 6). In the barista menu, the temperature unit can be switched from °C to °F.
Figure 6. Showing a 3-digit temperature/timer display (left) and the control panel (right).
On control panel
At “normal” operation, the control panel will show the temperatures of all coffee boilers and the steam
boiler and will continue to do so during a shot such that information about temperature is always real-
time available during a shot.
An orange line above a temperature value on the interface indicates that the controller sends a signal
to activate the corresponding heating element.
the control panel of
a Triplette with
temperature in °C
the controller sends
out a signal to heat
group 2 and the
steam boiler
On 3-digit displays
Factory setting is that a 3-digit display will display the temperature of the corresponding group during
idle. It changes to a shot-timer when the group is activated. The shot-time will be replaced by the
boiler temperature after a user-adjustable amount of seconds (see Figure 7).
Shot time
The shot time gives an excellent indication of the brew process and can assist the trained barista to
refine that process.
The large 3-digit displays underneath each group (see Figure 7) function as shot timers and/or
temperature display. In factory setting the displays show at idle the temperature of the corresponding
coffee boiler. As soon as the group valve opens the function changes to shot timer, starting at zero,
and counting starts. The timer stops counting when the group valve is closed and the measured time
between opening and closing of the group valve remains displayed for an adjustable amount of
seconds after the group valve was closed upon which the display changes back to showing the
temperature.
Figure 7. A 3-digit display showing shot time (in seconds, left) and the same display showing
temperature (in °C, right).
GROUP 1
93.4
GROUP 2
92.6
GROUP 3
93.2
STEAM
124.6
MENU

USER MANUAL - operation
Slim Jim User manual page 8
Pressure gauge
While brewing a real shot the coffee-bed becomes less permeable during wetting (pre-infusion stage)
and pressure will rise until pump-pressure is reached (ideally 9 bar). The pressure gauges display the
pressure in the line that runs from group-valve to group-screen. This means that when a group is
inactive or when no portafilter is locked in, the pressure gauge will display 0 bar.
The pressure gauge shows the actual pressure
on the coffee bed.
When the group is inactive, the pressure
displayed is thus (very close to) 0.
Figure 8. The brew pressure gauge.
If 9 bar pressure is not reached during a normal brew, either the pump pressure is set too low or the
coffee bed was not able to produce enough counter pressure. Insufficient counter-pressure can be
caused by too few and/or too coarse coffee grinds, channelling in coffee bed during extraction, etc.
Dispensing hot water
Momentary toggle switch for dispense of water
directly from steam boiler.
Push button switch for timed dispense of non-
sputtering mix-water.
Figure 9. The hot-water toggle switch and mix-water push button switch.
Mixed water
Press the mixed-water push button switch down briefly. The flow will stop when the pre-set time has
elapsed, or when the switch is pressed down briefly again, whichever comes first.
A technician can manipulate the cold inflow with a set-screw on the manifold inside the machine to
optimise the mix-water temperature.
Hot water
Press-hold the toggle switch down to start water flowing directly from the steam boiler to the spout. It
will take a moment before the water starts to sputter indicating that boiling water is being dispensed.
The duration of that moment depends on the temperature of the intermediate parts just prior to
pressing the switch. The flow will stop when the switch is released.
Note!
Hot water can only be dispensed when the steam boiler is above 100°C as steam pressure is the
means to push the water out of the boiler. When the steam boiler is not at operational temperature yet,
the mix-water temperature will be lower than the set temperature.

USER MANUAL - operation
Slim Jim User manual page 9
Steaming
The Slim Jim has two identical mechanical steam valves that come in two versions: “twist-knob” and
“flip-flop”. The twist-knob version can optionally be equipped with foot operated solenoid valves.
Before steaming milk it is necessary to open the valve for a short while to purge water from the steam
wand and heat up the wand and valve. The purged water is condensate from steam coming in contact
with the cold tubing, valve and wand. Position the tip of the steam wand over the drip tray when
purging the condensate.
Directly after steaming milk, flush the steam wand with a little steam and clean the tip of the steam
wand with a damp cloth. For hygienic reasons, do not use this cloth for anything other than cleaning
the steam tip.
Twist the valve-knob to open/close and adjust
the steam flow. From fully open to fully closed is
about ½ turn, there is no need to close the valve
firmly.
If the optional foot-operated steam valve is
mounted, do not fully close the mechanical
valve.
Move the knob of a flip-flop valve in any
direction to open the valve. The knob will lock
into position when moved far enough from the
central position.
Figure 10. The right hand steam valve (twist-knob version).
When the optional foot operated solenoid valve is mounted, the knob is used to adjust the flow of the
steam only. The solenoid valve is opened and closed by an air-switch that is activated by a bellows on
the floor. Of course, when the mechanical valve is turned close, no steam will flow from the wand.
Note!
It is advised not to decrease the steam power by lowering the steam boiler temperature. A lower boiler
temperature will reduce the amount of steam that can be produced and the temperature of the mix-
water dispensing.
Pre-infusion cylinder
The piston rod will rise up during the initial stage
of a brew. A double spring assembly inside the
pre-infusion cylinder assures a slow-starting and
gradual pressure build-up to about 3 bar when
the maximum displacement of the piston is
reached.
Figure 11. Piston-rod ends of the dual-spring pre-infusion cylinders.
At the initial stage of a brew, water is fed onto the coffee-bed and into the pre-infusion cylinder. The
water will flow in the direction of the least back-pressure. At start the coffee-bed will have no back-
pressure but once the coffee is wetted, dominant water-flow changes towards the pre-infusion
cylinder. Pressure gradually increases until the cylinder is completely filled and all water has to flow
through the coffee-bed. From that moment brew-pressure quickly increases to pump-pressure.
Caution!
The piston-rod of the pre-infusion cylinder can become very warm.

USER MANUAL - operation
Slim Jim User manual page 10
The advantage of the pre-infusion cylinder over a reduced flow-rate at start is that the entire coffee-
bed will be soaked relatively quick and then has time to swell and settle at reduced but increasing
pressure before high water pressure is reached. With reduced flow-rate during pre-infusion it will take
longer to wet all coffee and swelling and setting of the coffee-grinds starts where water reaches the
grinds first such that the upper part of the coffee-bed becomes less permeable to the later inflow.
Control panel
Note!
Remnants of detergent may unexpectedly activate the capacitive screen. For that reason you should
use plain (warm) water and a soft cloth only to clean the plastic front panel.
The control panels of the Triplette and Duette are very similar and have a 5-“button” capacitive touch
screen. When at operation, the display will show the temperatures in °C or °F without the temperature
unit. The reason for this is that not showing the unit allows the use of a bigger font for the temperature
values. The user will be aware of the local unit-setting and realise that normal brewing is at 88-95°C or
190-203°F.
operational window
Triplette with
temperature in °C
the controller sends
out a signal to heat
group 2 and the
steam boiler
operational window
Duette with
temperature in °F
the Duette does not
have a 3rd group
Change individual boiler to ECO and back
The factory set operational temperatures of the boilers are 93.0°C (coffee) and 125.0°C (steam)
(199°F and 257°F) respectively. 125°C is equivalent to approximately 1.35 Bar steam overpressure.
Each boiler can be individually set to a lower ECO temperature (50°C, 122°F for the coffee boilers,
70°C, 158°F for the steam boiler). At the lower temperature setting up to 80% power is saved while the
boiler will still have a short heat-up time (appr. 8 minutes). In the “operational window”of the interface,
touch-hold the button of the boiler that you want to change until the colour of the button-frame
changes to green (about 6 seconds) and the temperature value is replaced with ECO. Touch-hold
again and the corresponding boiler will heat up to operational temperature again.
An individual group set at ECO will also turn to normal operation when the corresponding Bastone unit
or touchpad is operated.
When the steam boiler is set to ECO, using any of the groups to make a brew or pressing the mix-
water switch will turn the steam boiler back to normal operation.
operational window
touch-hold (6s)

the green frame and
word ECO indicate
that setpoint is ECO
touch-hold (6s)
or operate group 2
Bastone/touchpad

GROUP 1
93.4
GROUP 2
45.6
GROUP 3
93.2
ST EAM
124.6
MENU
GROUP 1
200.1
GROUP 2
114.1
STEAM
256.3
MENU
GROUP 1
93.4
GROUP 2
45.6
GROUP 3
93.2
ST EAM
124.6
MENU
GROUP 1
93.4
GROUP 2
ECO
GROUP 3
93.2
ST EAM
124.6
MENU

USER MANUAL - operation
Slim Jim User manual page 11
Note that in the example above group 2 is at 45.6°C at moment of switching to ECO. As the ECO
temperature of the coffee-boilers is 50°C, the boiler will continue to heat until 50°C is reached and the
centre line will thus remain orange.
Go to stand-by
You have to leave the operational window to go to stand-by. In stand-by the controller is in sleeping
mode and the machine does not operate. There are two stand-by modes: “NO HEAT” and “ECO-
MODE”. At “NO HEAT” there is no power to the heating elements and the boilers will (eventually) cool
down to room-temperature. At “ECO-MODE” the boilers will cool down to a lower set temperature and
are then kept at that temperature (coffee boilers: 50°C, steam boiler: 70°C).
operational window
touch

menu window
touch

stand-by window
choose “NO HEAT”
or “ECO MODE”
touch
touch



no-heat window
“NO HEAT”: the
machine will cool
down
eco window
“ECO”: the machine
will settle at lower
set temperature
touch
or operate a
Bastone/touchpad
touching the central button at “NO HEAT” or “ECO” will
return the machine to operation (first window
A machine set at ECO will also turn to normal operation when any of Bastone units or touchpads or
mix-water switch is manipulated. This “first manipulation” will not result in starting a dispense.
GROUP 1
93.4
GROUP 2
47.2
GROUP 3
93.2
ST EAM
124.6
MENU
GROUP 1
93.4
GROUP 2
47.2
GROUP 3
93.2
ST EAM
124.6
MENU
ST AND
BY
EXTERNAL
SENSOR
CLEAN
PROGRAM
SETTINGS
13 : 57
NO
HEAT
ECO
MODE
EXIT
THURSDAY 13 : 57
TECH. ASSIST ANCE
KEES VAN DER WESTEN
SLIM JIM
NO HEAT
THURSDAY 13 : 57
TECH. ASSISTANCE
KEES VAN DER WESTEN
SLIM JIM
ECO

USER MANUAL - operation
Slim Jim User manual page 12
Sensor malfunction
For each boiler sensor, the corresponding area in the display, as well as the 3-digit display, will show
O.C. (open circuit, infinite resistance) or C.C. (closed circuit, electric short) if there is a sensor
malfunction. When a sensor malfunction is shown for a boiler, the heating of that boiler is dis-engaged.
The machine will remain functional on the other boilers. When there is a steam boiler sensor
malfunction the indicator LED(s) on the Bastone units or touchpads will flash continuously.
Even though the coffee boilers will remain operational when there is a steam boiler sensor error,
overall functionality of the machine will be low. When the display shows a boiler-sensor malfunction,
have the machine repaired as soon as possible (probably the sensor has to be replaced).
operational window
an open circuit is
detected at group 1
temperature sensor
As the sensor in the distribution block has no designated area on the control panel, a sensor error is
indicated by a red centre line in all groups. There is no distinction between open or closed circuit. With
a malfunctioning sensor, the cool-valve will not open but the machine will remain functional. A non-
functional cool valve may lead to overheating of the groups and rapid decay of the flow-meters in the
machine. Have the machine repaired as soon as possible.
operational window
a distribution block
sensor malfunction
is detected
Technical assistance
In the no-heat or eco window (shown below) touch the left of the control panel. The next window will
show the telephone number to call for technical assistance, provided that the technician has entered
the information. The exit button will return to “NO HEAT” or “ECO MODE”, whatever the earlier setting
was.
no-heat window
“NO HEAT”: the
machine will cool
down
eco window
“ECO”: the machine
will settle at lower
set temperature
touch

assistance window
touch

EXIT will go back to previously active window
(NO HEAT or ECO)
GROUP 1
O.C.
GROUP 2
45.6
GROUP 3
93.2
ST EAM
124.6
MENU
GROUP 1
93.4
GROUP 2
45.6
GROUP 3
93.2
ST EAM
124.6
MENU
THURSDAY 13 : 57
TECH. ASSIST ANCE
KEES VAN DER WESTEN
SLIM JIM
NO HEAT
THURSDAY 13 : 57
TECH. ASSISTANCE
KEES VAN DER WESTEN
SLIM JIM
ECO
TELEPHONE NUMBER FOR TECHNICAL ASSISTANCE
[phone]
EXIT

USER MANUAL - operation
Slim Jim User manual page 13
Start automatic back-flush program
See paragraph “Back flush group” on page 22 for complete back-flush procedure.
When the machine is in “normal” operational mode touch the MENU icon on the interface.
In the next screen touch the button “CLEAN PROGRAM”.
operational window
touch

menu window
touch

This will start the cleaning program. The display will
immediately return to the upper (operational) window.
The groups will pressurise (duration: 16 seconds) and de-pressurise (duration: 10 seconds) 8 times
successively and then the machine will return to normal operation. Indicator LED(s) on the
corresponding Bastone unit or touchpad will flash during the cleaning program.
Note!
If a group is activated during the back-flush program, the group valve of that group will de-activate but
the back-flush routine will continue on the other group(s).
When all groups are manipulated, the group valves will all close but the pump will finish the back-flush
routine.
Flow meter error
When flow rate of a group becomes very low or stops, the flow-meter is not able to accurately
measure the amount of water passing through and the display will show an error message.
operational window
group 3 shows a
flow-meter error
This will not affect any ongoing action of the machine but “volume in the cup” may not be as
programmed. The error message will remain visible until the group is activated a next time.
The error message will not be shown during the cleaning program (automatic back-flush program).
GROUP 1
93.4
GROUP 2
45.6
GROUP 3
93.2
ST EAM
124.6
MENU
ST AND
BY
EXTERNAL
SENSOR
CLEAN
PROGRAM
SETTINGS
13 : 57
GROUP 1
93.4
GROUP 2
45.6
GROUP 3
flow m.
ST EAM
124.6
MENU

USER MANUAL - operation
Slim Jim User manual page 14
Use external temperature sensor (option)
An external NTC-sensor can be plugged into the bottom of the electrics tray (see Figure 21, page 28).
The temperature of the external sensor can be shown on the control panel instead of the steam boiler
temperature. In the menu window touch the button “EXTERNAL SENSOR”.
menu window
touch

external sensor
window Triplette
external sensor
attached (°C)
external sensor
window Duette
external sensor
attached (°F)
touch

return to operational window
There is a filter-basket with NTC sensor available that will register the temperature in the coffee-bed
during extraction and can be helpful to check functioning of the different groups. Of course you can
also check the mix-water temperature with this item.
Figure 12. Temperature sensor in filter basket (mounted in bottomless portafilter).
Although the input of the “external sensor” is displayed without delay, the temperature shown will
always be lagging a bit w.r.t. the actual temperature at the sensor-tip as the probe-temperature needs
to adjust to the surrounding temperature. Response time of this sensor to 90% (of the temperature
difference) is appr. 1 second.
ST AND
BY
EXTERNAL
SENSOR
CLEAN
PROGRAM
SETTINGS
13 : 57
GROUP 1
93.4
GROUP 2
45.6
GROUP 3
93.2
EXTERNAL
80.4
EXIT
GROUP 1
200.1
GROUP 2
114.1
EXTERNAL
176.7
EXIT

USER MANUAL - operation
Slim Jim User manual page 15
Program volumes with touchpad or Bastone
The Bastone version of the Slim Jim has 2 pre-set volumes per group, the touchpad version has 4 pre-
set volumes per group. When water flows through a coffee group, the flow meter of that group sends
pulses to the controller. The controller counts the pulses after activation of the group and will de-
activate the group when the pre-set number of pulses has been received (that is: when the pre-set
volume of water has passed the flow meter).
The pre-set volumes can be programmed 2-ways: (1) with the Bastone units or touchpads, or (2) using
the interface (in the Barista-menu; submenu “volumes”).
When using the Bastone or touchpad to program volumes, the left group is the dominant group
meaning that when a volume is programmed on the left group, the other group(s) will take over that
volume. After getting the machine to programming mode a shot is started and ended with the Bastone
(or touchpad). Upon leaving the programming mode, the last programmed dispense for each shot
volume is stored in memory.
Note!
Make sure to mimic an actual brew while programming volumes: check that the machine is at
operational temperature for some time and prepare the coffee-bed as you normally would.
procedure
1. get the controller in programming mode:
•touchpad: press-hold the upper button of the left touchpad (appr. 6 seconds)
•Bastone: press-hold the push button of the left Bastone (appr. 6 seconds)
the (top, programming) LED on all units will start flashing.
You now have 20-25 seconds to start the following
2. start the brew/dispense as normal
•touchpad: shortly press the button to be programmed
•Bastone: note the position of the toggle-switch, shortly press the Bastone handle down
•mix water: shortly press the dispense push button
On a touchpad, the corresponding LED lights up and the programming LED will be continuously lit.
On a Bastone unit, the LED will be continuously lit.
3. stop the brew/dispense when the correct volume is reached
•touchpad: shortly press the button to be programmed again
•Bastone: shortly press the Bastone handle down again
•mix water: shortly press the dispense push button again
the (top) LED on all units will start flashing again
you may now program another volume (on another or the same button/switch position if needed) or:
4. get the controller out of programming mode
•touchpad: shortly press the upper button of any touchpad
•Bastone: shortly press the push button of any Bastone unit
the (top) LED will stop flashing.
Note!
When the controller does not get into programming mode upon press-hold of the upper button/push-
button, use the main switch to switch the machine OFF, wait for the display to go blank, subsequently
switch ON and then try again.

USER MANUAL - operation
Slim Jim User manual page 16
Change settings in the Barista menu
You have to leave the operational window of the controller and choose the correct parameter-set (in
the settings window) to change individual settings.
operational window
touch

menu window
touch

settings window
touch

enter barista
password window
use ˄˅ to change
the value of the
underlined digit,
use ˂˃ to change
digit
use arrows to construct the password (see Note below)
touch

barista menu
window
choose a sub-menu
or exit to the
operational window
Note! With firmware versions:
XPV38 K V W FW ver. 1.18
Controller board FW ver. 1.23 CONCERTO230_KVW
or higher, the “Barista password” has changed from 33333 to 10000
GROUP 1
93.4
GROUP 2
45.6
GROUP 3
93.2
ST EAM
124.6
MENU
ST AND
BY
EXTERNAL
SENSOR
CLEAN
PROGRAM
SETTINGS
13 : 57
FACTORY
LEVEL
TECHNIC
LEVEL
MANAGER
LEVEL
BARISTA
LEVEL
EXIT
BARISTA PASSWORD: 00000
ENTER
TEMP.
SETTING
VOLUME
SETTING
TIME
DAT E
TIMED
ON/OFF
EXIT

USER MANUAL - operation
Slim Jim User manual page 17
Sub-menu TEMPERATURE SETTING
In the sub-menu temperature setting you can consecutively adjust the following:
parameter
range
factory
increm.
unit
remark
temperature display
°C, °F
°C
grp 1 temperature
80.0 .. 99.9°C
176 .. 212°F
93.0°C
199.4°F
0.1
°C or °F
grp 2 temperature
grp 3 temperature
In a Duette there is no group 3.
steam temperature
110 .. 130°C
230 .. 266°F
125°C
257°F
1
Do NOT set mix-water
temperature by changing the
steam boiler temperature
cup heater*
0 .. 100 or 70
0
1
% or °C
the cup-heater is OFF at “NO
HEAT” and “ECO-all”
show temp. at ECO
no, yes
no
When “yes” the digit displays will
show a temperature at ECO.
* With firmware versions 1.18 (for XPv) and 1.23 (Concerto) or higher the cup-heater has changed to
sensor-controlled temperature (max. 70°C).
With earlier firmware versions, the cup heater is time-controlled and should not be set higher than
15% (15 seconds ON, then 85 seconds OFF). A higher setting will soon activate the overheat safety
device (75°C) in the cup heater, effectively turning the heat OFF.
Sub-menu VOLUME SETTING
In the sub-menu volume setting you can consecutively adjust the following:
parameter
range
factory
increment
unit
remark
water timer
0.5 .. 15
4.0
0.1
s
mixed-water is timed.
touchpad
Bastone
V1Gr1*
50t
1
ml
With Bastone units
there are only 2
programmable volumes
per group. The
positions witht are only
available on a
touchpad.
V2Gr1
V1Gr1
100
V3Gr1
150t
V4Gr1
V2Gr1
200
V1Gr2
50t
V2Gr2
V1Gr2
15 .. 300
100
V3Gr2
150t
V4Gr2
V2Gr2
200
V1Gr3
50t
In a Duette there is no
group 3.
V2Gr3
V1Gr3
100
V3Gr3
150t
V4Gr3
V2Gr3
200
* V1Gr1 means shot volume 1 on group 1; V3Gr2 means shot volume 3 on group 2, etc.
Note that the volumes can also be set with the aid of the touchpads/Bastone units (see page 15). Only
when volumes are programmed with touchpad or Bastone, the left group is dominant.
You can roughly program a shot-volume with the touchpad/Bastone and then fine-tune that volume on
the control panel (increase or decrease) instead of brewing a new shot. Note that the volume shown
on the interface is the total volume that passes the flow-meter, it thus also includes the water that
remains in the coffee puck after the brew (appr. half the weight of the coffee-grinds) and the water that
flows into the double-spring pre-infusion cylinder (DSPIC: appr. 28 ml).
Example
A double espresso shot will have a dosed volume of about 60(brew) + 10(puck) + 28(DSPIC) = 98ml.

USER MANUAL - operation
Slim Jim User manual page 18
Sub-menus TIMED ON/OFF and TIME/DATE
In the sub-menu timed on/off you can consecutively adjust the following:
parameter
range
factory
remark
auto off
NO, to ECO-all, to NO HEAT
NO
turn automatically to stand-by
off time
hh:mm
time to turn to stand-by
auto on
NO, YES
NO
turn automatically ON
on time
hh:mm
time to turn ON
day off
none, Monday .. Sunday
none
skip a weekday to turn automatically ON
This sub-menu continues into the sub-menu TIME/DAY.
In the sub-menu time/date you can consecutively adjust the following:
parameter
range
factory
increment
unit
remark
shot time
-1 .. 99
20
1
s
-1 never show shot time
0 show shot time during brew only
present time
hh:mm
present day
Mon..Sun
Timer function to switch the machine
The machine can automatically change state:
•Using the “auto off” function will turn the machine to stand-by (ECO or NO HEAT) at a pre-set
time (e.g. at the end of the day). It is especially meant to facilitate the use of the ECO function.
•Using the “auto on” function will turn the machine to operational temperature at a pre-set time
(e.g. in the morning). When set correctly, the machine will be fully operational the minute the
store opens.
•The “day off” function will make the pre-programmed ON time skip a day.
An automatically set switch can be overridden manually on the machine at any time. After such
interference the timer function will continue to run in the background and will perform the next pre-set
action when it turns up.
Notes!
To have the machine react properly to the timer function instructions the main and heat switches must
remain in the ON position.
The time and weekday of the controller must also be set correctly. It is advised to check these
regularly (present time and weekday are shown on the ECO-all and NO HEAT windows).
Why switch to ECO …
1. A not-used machine kept at ECO consumes about 20% of the energy of a not-used machine kept
at operational temperature.
Heat loss of the machine is related to the square of the temperature difference between the machine
and its environment. Of course some extra energy is needed to heat up from ECO to operational
temperature. Switching to ECO will therefore lead to 70-75% energy reduction, depending on how
long the machine will be at ECO before turning ON again.
… and not to OFF?
2. A lot of parts in the machine suffer from temperature variations, the more so when these variations
are large.
3. Heating up from ECO (just over 8 minutes) is faster than heating up from room temperature (about
15 minutes).

USER MANUAL - operation
Slim Jim User manual page 19
Figure 13. Graph showing typical heat-up duration normalised at ECO-temperatures. From ECO to
operational temperatures takes just over 8 minutes for both coffee and steam. From 20°C to
operational takes 14 (coffee) and 16 (steam) minutes resp.. Also shown is heat-up with high power
heating element for steam boiler.
Note!
The temperature sensor of the steam-boiler is placed above the water-level for quick response to
steam withdrawal. At temperatures below 110 °C (230 °F) the sensor will not quickly register a change
in (water) temperature. For that reason, the steam-boiler temperature may be up to 6 °C higher than
the ECO-setpoint at the moment you switch from ECO to operational mode.
Pump-pressure
Check
Check the pump-pressure when an actual brew is at the infusion stage; i.e. the approximately stable
high pressure reached during a brew. Make sure that only a single group is active during this check as
multiple “users” will result in a somewhat lower pump-pressure.
Do not use the mix-water during this check as that will also result in some pressure loss.
Check all groups available and compare the results. The pump-pressure at the different groups should
be identical as there is only one pump used for the entire machine.
Notes!
A small divergency (<0.2 bar) between the groups can be the result of deviations between pressure
gauges and is no cause for alarm.
A large divergency may indicate a malfunction but can also be the result of different coffee-bed
preparation. Redo the check and have a technician solve the problem when the divergency persists.
0
10
20
30
40
50
60
70
80
90
100
110
120
130
-8 -6 -4 -2 0 2 4 6 8 10
temperature (°C)
time (minutes)
Typical heat up
times of Slim Jim
steam 6.0kW
steam 4.8kW
coffee