Kees van der Westen Spirit DUETTE User manual

Spirit installation manual page 0
Installation manual Spirit
(Original instructions)
Document ID: Sup-Rim-Eng Date of issue: October 22, 2014 Revision date: May 20, 2020

CONTENTS
Spirit installation manual page 1
Designation............................................................................................................................................ 2
Safe operation........................................................................................................................................ 2
Advice for installation personnel......................................................................................................... 2
Installation quickstart ........................................................................................................................... 3
1. Connect water.......................................................................................................................... 3
2. Connect water disposal........................................................................................................... 4
3. Open water mains ................................................................................................................... 4
4. Make sure that machine is switched “OFF”............................................................................. 4
5. Connect electricity ................................................................................................................... 5
6. Fire up and adjust.................................................................................................................... 5
Welcome................................................................................................................................................. 7
Parts identification............................................................................................................................... 7
Note on this manual ............................................................................................................................ 8
Before installation ................................................................................................................................. 9
Water quality........................................................................................................................................ 9
Area preparation................................................................................................................................ 10
Machine location................................................................................................................................ 10
Surface.............................................................................................................................................. 10
Pump location.................................................................................................................................... 11
Dimensions........................................................................................................................................ 12
Upon arrival.......................................................................................................................................... 15
Parts included in standard shipment................................................................................................. 15
Extra materials needed ..................................................................................................................... 15
Unpack and place.............................................................................................................................. 15
Installation............................................................................................................................................ 17
Precaution ......................................................................................................................................... 17
Water supply...................................................................................................................................... 18
Water treatment system .................................................................................................................... 18
Connect water supply to machine..................................................................................................... 18
Waste/drain ....................................................................................................................................... 21
Electric mains.................................................................................................................................... 22
3-phase machine (3N~400V, 50/60Hz)......................................................................................... 22
single-phase machine (~230V, 50/60Hz)...................................................................................... 23
3-phase / single phase conversion................................................................................................ 23
Connect pump cables.................................................................................................................... 24
Connect mains cable..................................................................................................................... 25
Filling the machine with water from empty........................................................................................ 26
Expel air from coffee system......................................................................................................... 27
First use................................................................................................................................................ 28
Heating up......................................................................................................................................... 28
Set hot water dosage ........................................................................................................................ 28
Adjust coffee system pump pressure................................................................................................ 29
Set hot water temperature................................................................................................................. 30
More information on our website....................................................................................................... 32
Contact information ............................................................................................................................ 32

PREFACE
Spirit installation manual page 2
Designation
This manual applies to the 2-group and 3-group Spirit espresso machines with touchpad or Bastone
operation manufactured by Kees van der Westen Espressonistic Works B.V. Separate rotational
pumps with electric motors are part of the appliance.
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.
Advice for installation personnel
We do our utmost to have the machine in optimal condition before it is crated. Unfortunately storage
and/or shipment sometimes has a negative effect on the state of the machine upon arrival.
Note!
We recommend to check and bench-test each machine in your workshop immediately after delivery
and certainly before installation at a client’s location.
Body panels may become affected by prolonged exposure to salty air (transport by sea). Stains on
shiny stainless steel and polished aluminium can be removed with silver-polish and a soft cloth. Stains
on painted parts may be wiped off with wet towel, possibly with the addition of a mild detergent.
Prolonged storage may also result in deposition/crystallisation of water-dissolved minerals that can
block the small openings in the machine (restrictors underneath fill valve, group valves and such) thus
affecting the performance of the machine.
Despite our careful packaging, handling of the crate may be so rough that the frame bends or parts
get damaged during transport. It is noted that the customer is responsible for additional insurance
during transport as standard compensation from the shipping company will not cover all costs.

Spirit installation manual page 3
Installation quickstart
If the information in this section is not sufficient, we refer to the “installation manual” which you can
find in a following section (page 17 onwards) of this manual, or contact your local installation
technician.
1. Connect water
Install water treatment system (not in shipment), flush new cartridge, and connect water treatment
system to all pumps. Mount steam boiler pump as the last one “downstream” of water treatment
system. Make sure water has run through the pump(s) before the electric motors start.
First pump downstream of water treatment system. Note corresponding colour-coding on hose and
cable-plug. The elbow end of the high pressure hose would normally be on the machine side..
Connect high pressure hoses of all pump outlets to Spirit according to table and picture below.
coffee
system
group 1
group 2
group 3
steam
boiler
2-pump
machines
“C”
green
“S”
red
pump/gr
Duette
“L”
green
“R”
purple
“S”
red
pump/gr
Triplette
“L”
green
“C”
purple
“R”
yellow
“S”
red
The photo shows letter and colour-coding on a pump/group Triplette.
T-fitting
Spirit
water
treatment
coffee
(group 1)
pump
next
pump
L
C
R
S

INSTALLATION QUICKSTART
Spirit installation manual page 4
2. Connect water disposal
Attach both drain hoses to Spirit and fixate with hose clamp. Insert other end into sewer. Make sure
hoses slope down and cannot get pinched.
3. Open water mains
(The coffee-boilers will start to fill.)
Check for leaks at all connections just made.
4. Make sure that machine is switched “OFF”
Mains switch = “OFF” and …
… all temperature controller switches point down.
discharge pipe
on drip tray
machine
waste
controller switches

INSTALLATION QUICKSTART
Spirit installation manual page 5
5. Connect electricity
Mount pump cables of machine to correct pump.
Left: pump cables on 2-pump machine. Right: pump cables on pump/group Triplette, mains cable not
mounted yet. During 2019 machines colour coding on plugs at pump cables was introduced
Mount the mains cable directly in wall connection box or attach plug to mains power cable and plug in
wall socket. Shown below is the 3-phase plug used in Europe.
3-phase
1-phase
USA
Phase/
Live
P1
brown
black
P2
black
brown
P3
grey
Neutral
N
blue
blue
white*
Earth
E
yellow/
green
yellow/
green
green
Left: 400V 16Amp 3P-N-E plug. Right: table with mains electricity colour coding.
* The white lead in the USA cable must be hooked up to the anti-phase 115Vac live (anti-phase w.r.t.
the black 115Vac live).
6. Fire up and adjust
Turn mains switch to “ NO HEAT”
Pumps are engaged and boilers will start to fill.
Engage groups until water runs from group.
After 2 minutes, pump(s) will disengage.
Turn mains switch to “OFF” and back to “NO HEAT” (repeatedly)
Repeat (3-6 times) until pumps stop before 2 minutes have past.
Check if water runs from all groups when these are activated
If not, check water connections.
coffee
mains
supply
steam
back
light
switch
grey
black
yellow/
green
brown
blue
back
light
switch
group 1, left
group 2, centre
group 3, right
steam

INSTALLATION QUICKSTART
Spirit installation manual page 6
Turn mains switch to “ON”
And switch back light “on”.
Flip controller switches upwards
Boilers will heat up (this takes about 20-30 minutes).
Set coffee brewing pressure
By adjusting coffee system pump pressure (use coffee puck, not blind filter).
Set hot water temperature (when machine is at operational temperature)
Increase hot water temperature by decreasing steam boiler pump pressure.
Decrease hot water temperature by increasing steam boiler pump pressure.
Set dosages for brew shots and hot water
See user manual for details. This must be repeated after some days of use.
If the information in this section is not sufficient, we refer to the “installation manual” which you can
find in a following section of this manual (page 14 onwards), or contact your local installation
technician.

Spirit installation manual page 7
Welcome
Parts identification
Figure 1. Showing main operational parts of the Spirit Duette Bastone version. The Spirit Triplette is
wider since it has three groups but its functions are identical to the Duette. On the Touchpad version,
the group brewing lever units are replaced with touchpads (see Figure 3).
1. Mains switch
2. Coffee boiler PID temperature controller (right group)
3. Coffee boiler heating on-off switch (right group)
4. Steam boiler temperature controller
5. Steam boiler heating on-off switch
6. Volume switch (left group)
7. Program button (left group)
8. Brew indicator light (left group)
9. Group brewing lever (left group)
10. Pressure gauge (left group)
11. Group (left)
12. Hot water spout
13. Hot water lever
14. Steam power adjustment lever (right)
15. Steam lever (right)
16. Steam wand (right)
17. Steam tip (right, with protective cap)
A. Cup warmer tray
B. Drip tray
Not visible on this photo:
•Green indicator lights for heating spirals (one for each spiral; see user manual)
•Switch for illumination of transparent back panel (see p. Fout! Bladwijzer niet gedefinieerd.).
1
9
10
11
2
3
13
B
A
4
5
6
7
8
16
15
17
14
12

WELCOME
Spirit installation manual page 8
Note on this manual
Work on the Spirit manual started in March 2012 and is a continuing process. Photographs in the
manual are taken in the shop from (pre-production) machines being built at the time. For that reason,
body panels and/or parts from the machines on display may be missing and parts in the machine you
bought may not look identical to the parts shown in the manual. Over time, sections are added and/or
improved, sometimes as result of readers making comments. If you have suggestions for
improvements, do not hesitate to send them to: [e-mail].
For more -or more recent- information, we refer you to the files that can downloaded from:
http://www.keesvanderwesten.com/spirit-support.html.
The technical manual for the Spirit is meant for maintenance technicians and only available upon
request.
Figure 2. The “customer” side of the Spirit Duette Bastone, shown with standard-logo.
Figure 3. A Spirit Triplette Touchpad version seen from the front.

Spirit installation manual page 9
Before installation
See “Advice for installation personnel” (page 2) about checking and bench testing the machine prior to
installation on location.
Water quality
Have the local water tested and ask the water supply company if there can be seasonal changes in
water quality and when so, in what order these changes occur.
Optimally, the water fed into the espresso machine would fall in the high end of the SCA “core zone”,
see Figure 4, and have a pH of 7.0-7.5 (at 25°C).
Figure 4. 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.
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

BEFORE INSTALLATION
Spirit installation manual page 10
Water with properties that lie within the SCA “core zone” and 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.
Area preparation
Before unpacking the machine, you must be sure that the area where the machine will be placed has
been prepared properly. The countertop should be level and firm enough to carry the weight of the
machine (up to 135 kg, 300 lbs), even when force is applied to it (to lock in the filter holders, tamp the
coffee bed, etc.). A countertop height of 85-100 cm (33-40”) is suitable for most baristas.
The water supply and water treatment system must be nearby (max. 1.5 meter; 5 feet) the machine.
Discharge may not be further away than 1.5 meters, have an internal diameter of at least 40 mm (1.5
inch) to accommodate two somewhat flexible hoses with external diameter 20 mm. The discharge
should be fitted with a syphon. There must be space nearby to locate the two (or more) water pumps
with their individual electric motors (depth x width x height: 30 x 20 x 25 cm each; 12” x 8” x 10”).
A wall socket or power mains outlet box must be nearby (max. 1.5 meter). Depending on the machine
ordered, the power mains is either ~3N 400V ~230V. All power mains must have an Earth connection
and should be able to safely deliver the maximum power consumption of 7.5kW; 32.7 Amps (standard
Duette) or 10.2 kW; 44.5 Amps (pump-per-group Triplette).
You may want to have the water, drain and power fed through one or more openings in the countertop
(see Figure 5: Footprints of the Duette and Triplette). As the Spirit has full free space underneath, the
opening(s) in the countertop can be positioned anywhere. For a visually pleasing result we
recommend feeding the pump and drain hoses through an opening located just behind the front left
foot, and the mains and pump cables through an opening just behind the front right foot, of the
machine.
Notes!
Make sure that the mains and pump cables “bend-upwards” in the cabinet below the machine to
prevent the possibility that water dripping along these feeds reaches the wall socket or pump-motors.
Be aware of the location and functioning of the knock-box when planning the design of the
connections to your machine.
General tips
•Install the knock-box centred underneath the espresso machine or near the grinder(s) in the back
of the bar. This will result in a favourable routing of the filter holder (knock empty, fill, tamp, lock
into group).
•Have your cabinet-maker fit the knock-box prior to installing the espresso machine. Whoever
installs the machine may not be able or equipped to do so.
•Have approximately 10 cm (4”) of free countertop space at the barista’s side of the machine. This
is useful working space for cups and saucers.
•Have a fridge installed as close to the espresso machine as possible. Cold milk is essential for the
proper preparation of a cappuccino.
Machine location
The machine is only to be installed in locations where it can be overseen by trained personnel.
Areas where a water-jet could be used are not suitable as location for the machine.
Surface
The countertop must be sturdy enough to easily support the machines’ weight (when filled: up to
100kg) plus extra equipment (one or two coffee-grinders, tableware, …). The surface should have a
height of 95-100 cm and be smooth, flat and horizontal.
It is advised to think about the location of holes in the countertop where the water and waste hoses
and electric cables should pass before the machine is installed.

BEFORE INSTALLATION
Spirit installation manual page 11
Pump location
There should be nearby space for the electric motors with rotary vane pump. The pump-assemblies
should not be able to touch the walls of the cabinet they are located in to prevent noise. Further noise
reduction can be achieved by placing the assemblies on a 2-4cm thick rubber-foam sheet with
dimensions: 16x30cm per assembly (not supplied with machine). The pumps will be electrically
connected to the espresso machine with an approximately 2 m long cable fitted with a plug.
Areas where a water-jet could be used are not suitable as location for the pump-assemblies.
Make sure there is air-flow possible near the motors to prevent overheating.

BEFORE INSTALLATION
Spirit installation manual page 12
Dimensions
Figure 5. Footprints of Spirit Duette (top) and Triplette (bottom). Actual measurements may deviate up
to 5 mm.
Black circle………………………
Machine foot (diameter = 50 mm)
White rectangles………………...
Suggested locations for openings behind front feet to feed
connections through the countertop
Minimum sizes of countertop openings
Pump hoses
35 mm (connector diameter is 22 mm, hose is 12 mm)
2 drain hoses
40 mm (20 mm each)
Pump + drain hoses
40 mm (insert pump hoses first)
Electric cables
20 mm (mains cable plus 2 pump cables, no plug)
All feeds through 1 opening
55 mm (insert pump hoses first)
hoses
cables
hoses
cables
129
709
489
145
50
972
679
129
489
145
50
709
1264
971

BEFORE INSTALLATION
Spirit installation manual page 13
Figure 6. Measurements of Spirit Duette. Note that the rubber feet are not present, these are 20 mm
high and have a diameter of 50 mm.
WITHOUT RUBBER FEET 20 mm high
WITHOUT RUBBER FEET 20 mm high

BEFORE INSTALLATION
Spirit installation manual page 14
Figure 7. Measurements of Spirit Triplette. Note that the rubber feet are not present, these are 20 mm
high and have a diameter of 50 mm.
WITHOUT RUBBER FEET 20 mm high
WITHOUT RUBBER FEET 20 mm high

Spirit installation manual page 15
Upon arrival
Parts included in standard shipment
•Spirit espresso machine
Accessories
standard p/g Duette p/g Triplette
•2 pcs 3 pcs 4 pcs water pumps with electric motors
•2 pcs 3 pcs 4 pcs high-pressure, steel webbed, hoses, each 1.5 m (5 ft)
•3 pcs 4 pcs 5 pcs high-pressure, steel webbed, hoses, each 0.5 m (1 ft 8 in)
•1 pcs 2 pcs 3 pcs T-fitting (3/8M-3/8M-3/8F)
Duette Triplette
•2 pcs 3 pcs Filter holders with filter baskets
•2 pcs 3pcs Blind filter: Duette 2 pcs, Triplette 3 pcs
•2 pcs discharge hose, inner diameter 15 mm (5/8”) with stainless steel hose clamps
•Stainless steel “Kees van der Westen” tamper; compliant with VST specifications
•Jar with cleaning powder
•Group brush
•2 pcs “Kees van der Westen” shot glasses
•T-shirt “Spirit”
•Kit with consumable parts to facilitate maintenance and routine service. Exact content varies over
time and may depend on whoever is responsible for maintenance and service.
Extra materials needed
•Water treatment system (at least an effective particle filter and de-scaler)
•Materials to connect the water treatment system to the T-fitting (3/8M) on the first water pump
•Coffee grinder
•Knock box
•Pitcher
•…
Unpack and place
Tools needed
•flat screw driver or alike; pliers; Phillips screw driver no. 2, preferably on a power drill.
Procedure (follow instructions printed on the crate)
1. Straighten the top metal tabs with a flat screw driver and pliers and remove the lid of the crate.
2. Unload the individual parts inside.
3. Remove the shelf.
4. Straighten the metal tabs on 2 corners of the crate.
5. Remove the Philips screws and take the side panels from the crate-bottom.
6. Lift the machine by its legs and place on the countertop.
Caution! Lifting the machine other than by its legs may cause damage. For that reason you have to
remove the side panels from the crate.
Warning! The machine has a considerable weight. Make sure you have assistance while lifting the
Spirit to its place.

UPON ARRIVAL
Spirit installation manual page 16
7. When necessary, adjust the feet such that the machine is level and all feet are firmly touching the
countertop. The rubber feet can be individually lowered: loosen the cover nut first, then “unscrew”
the foot from the leg. When correct height is achieved, tighten the cover nut (see Figure 8).
Figure 8. Adjust the height of an individual leg. Loosen the cover nut, “unscrew” the foot from the leg
until correct height is reached, then tighten cover nut.
cover nut
rubber
foot

Spirit installation manual page 17
Installation
Precaution
Installation of and maintenance on the Spirit should only be undertaken by a qualified technician. Parts
of the machine can reach a temperature of close to 130 °C (266 °F). The steam/hot water boiler
contains water and pressurised steam at 125 °C and 1.35 bar overpressure (257 °F and 20 PSI),
temperature and pressure in the coffee boiler system may reach up to 96 °C and 12 bar overpressure
(205 °F and 175 PSI).
Danger
We cannot be held responsible for damage and/or injuries resulting from actions performed on our
machines by non-qualified personnel.
Caution!
Always ensure water supply to the machine is in perfect working order before connecting electric
power.
Parts needed, included in shipment
•Machine
•2/3/4* high pressure hoses, 1.5 m (5 ft)
•3/4/5* high pressure hoses, 0.5 m (1 ft 8 in)
•1/2/3* T-fittings 3/8M
•2/3/4* pumps with motor, 30x20x25 cm (length x width x height; 12x8x10 inch)
•2 discharge hoses with stainless steel clamps
* for amount per machine and version see page 15.
Parts needed, not included in shipment
•Hose that connects water treatment system to 3/8M fitting on first pump
•Water treatment system with supplies to connect it to the water mains
Tools needed
•Spanner 20-22 mm
•Spanner 30 mm or adjustable spanner
•Teflon tape
•Screw drivers (flat no. 2 and 4; Phillips no.2)
•Sharp knife
•Bucket
•Quick response temperature sensor and appropriate meter

INSTALLATION
Spirit installation manual page 18
Water supply
Rated pressure: 0.1-0.5 MPa (1-5 bar; downstream of treatment system)
Rated flow: minimum 4 litre/minute
The water supply should be able to deliver a minimum amount of 4 litres per minute in the range 0.1-
0.5 MPa (1-5 bar). The machine and accompanying rotary vane pumps must be connected with the
supplied new set of high-pressure hoses, old hose-sets should not be re-used. The distance between
water treatment system and (first) pump cannot be greater than 0.5 meter and the distance between
any pump and machine cannot be greater than 1.5 meter, unless there is appropriate material
available to increase these distances.
Note! Not included in the shipment are supplies to make the connection between the water-tap and
the water treatment system.
Water treatment system
The water treatment system should also be able to deliver a minimum amount of 4 litres per minute
and 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.
If the resulting water does not fall into the SCA “core-zone” (see Figure 4) have additional treatment
installed.
Notes!
Flush the water treatment system according to the manufacturers instruction before connecting it to
the pump-inlet.
Make sure that the functioning of the water treatment system will be checked on a regular basis.
Connect water supply to machine
Connect the water mains to the inlet of an efficient device to remove calcium and magnesium ions and
Chlorine from the water entering your machine. Scale and Chlorine are the worst enemies of an
espresso machine. Be sure to follow the instructions of the water treatment system before use
(rinse!!), also when new.
In 2019 we introduced colour-coding to mark the different pump-cables and hose-connections on the
machine. The installation material contains pairs of coloured rings that can be used to colour-code the
hoses on both ends accordingly. We suggest to use the rings supplied with the long high-pressure
hoses to colour-code them accordingly: put a similar coloured ring on each end of the hose.
Figure 9. Showing the high pressure hose connections on a pump-per-group Spirit Triplette. Inlet
fittings have a coloured O-ring to facilitate installation. Compare to right part of Figure 10.
L
C
R
S

INSTALLATION
Spirit installation manual page 19
Figure 10 and Figure 11 show schematically how to connect the hoses and pumps to the different
versions of the machine. Described below is the standard lay-out for machines with 2 pumps.
Figure 10. Left: Set-up for standard, 2 pump, machines. Water treatment system on right is connected
to the coffee boiler pump. The T-fitting on this pump then supplies water to the steam boiler pump.
The water treatment system and the rightmost hose are not included in your shipment.
Right: Showing letter-marking and colour coding on machine for the different machine versions.
Compare to Figure 9.
Figure 11. Set-up for pump-per-group machines. In a Duette there is no 3rd group and PUMP 3 in the
above scheme is not present.
1. Colour-code the long hoses on both ends with the red and green rings respectively.
2. Attach the knee-shaped end of the red-coded steam boiler hose to the rear fitting on the machine
with marked “S” and red O-ring on it (3/8M connections; see Figure 9). There is no need for any
type of gasket. The rounded end of the hose fits snugly onto the fitting, providing a leak free
connection when turned tight.
3. Do the same with the knee-shaped end of the green-coded coffee system hose (front fitting
marked “C”, green O-ring)
4. Attach the other ends of the long high pressure hoses to the outlet of an individual pump (3/8M
connections, see Figure 10 and Figure 11). No need for gaskets.
Notes!
The outlet of the pump is marked with an arrow pointing away from the pump-housing.
The inlet of the pump is marked with an arrow pointing towards the pump-housing (see Figure 12).
The steam boiler hose (red) attaches to the pump without T-fitting.
5. “Loop” the pump(s) with short hose(s) as shown on Figure 10 and Figure 11.
"S"
steam
"C"
coffee
on pump/group Duette
on standard machine
"L"
left
"S"
steam
"L"
left
"R"
right
on pump/group Triplette
"S"
steam
"R"
right
"C"
centre
steam
boiler
coffee
system
water
mains
pump 1
pump 2
water
treatment
system
steam
boiler
group 3
(if present)
group 2
group 1
water
mains
pump 1
pump 2
pump 3
if present
pump 4
water
treatment
system