M&V S.r.l. Minima User manual

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INIMA OWNERS MANUAL
INTRODUCTION .................................................................................................................................................................... 3
MINIMA SUPPLIED ITEMS. ........................................................................................................................................................ 3
PRODUCT SAFETY NOTICE ....................................................................................................................................................... 3
Inspection and unpacking ................................................................................................................................................... 3
General Installation precautions ........................................................................................................................................ 3
Always ensure the portafilter is locked in correctly ............................................................................................................ 4
UNPACKING THE MINIMA ........................................................................................................................................................ 4
The Accessories ................................................................................................................................................................... 4
The internal tank ................................................................................................................................................................. 4
MINIMA SPECIFICATIONS ......................................................................................................................................................... 5
THE MAJOR CONTROLS OF THE MINIMA .................................................................................................................... 6
IMPORTANT NOTE ............................................................................................................................................................... 7
PREPARING THE MINIMA FOR OPERATION ................................................................................................................ 8
FILLING THE MINIMA FOR THE FIRST TIME ............................................................................................................................... 8
FLUSHING THE MINIMA BEFORE USING .................................................................................................................................... 9
GRINDERS ................................................................................................................................................................................ 9
COFFEE .................................................................................................................................................................................... 9
USING THE MINIMA ........................................................................................................................................................... 10
SETTING BREW AND SERVICE BOILER TEMPERATURE ............................................................................................................. 10
ESPRESSO & OTHER DRINKS .......................................................................................................................................... 11
Espresso ............................................................................................................................................................................ 11
Ristretto ............................................................................................................................................................................. 11
Lungo ................................................................................................................................................................................ 11
Americano ......................................................................................................................................................................... 11
Cappuccino ....................................................................................................................................................................... 12
Latte .................................................................................................................................................................................. 12
Flat white .......................................................................................................................................................................... 12
Macchiato ......................................................................................................................................................................... 12
Cortado ............................................................................................................................................................................. 12
STEAMING MILK .................................................................................................................................................................... 13
After steaming milk ........................................................................................................................................................... 13
DRAWING HOT WATER TO WARM CUPS, FOR AMERICANOS, TEA AND OTHER HOT DRINKS .................................................... 14
CLEANING AND MAINTENANCE .................................................................................................................................... 15
AFTER EVERY ESPRESSO OR GROUP OF ESPRESSOS ................................................................................................................. 15
DAILY (AT THE END OF EACH DAY) ........................................................................................................................................ 15
MONTHLY .............................................................................................................................................................................. 15
ANNUALLY ............................................................................................................................................................................ 15
E61 GASKET REPLACEMENT ................................................................................................................................................... 16
DESCALING ............................................................................................................................................................................ 16
Service Boiler Descaling ................................................................................................................................................... 16
Brew Boiler Descaling ...................................................................................................................................................... 17
OTHER PROBLEMS.................................................................................................................................................................. 18
Display Error Codes ......................................................................................................................................................... 18
PID VALUES EXPLAINED ....................................................................................................................................................... 20
APPENDIX 1 - ELECTRICAL SCHEMATIC (SIMPLIFIED) ............................................................................................................ 21

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INIMA OWNERS MANUAL
Introduction
The Minima is a high quality prosumer grade dual boiler espresso machine that enables you to accurately control
brew temperature and easily make gourmet coffee drinks, such as espresso, cappuccino, latte, draw hot water or
Steam, all without any special preparation of the machine by having to switch it into different "modes" for
steaming and brewing.
An all stainless steel construction with a professional solenoid vented E61 group (originally developed by Faema
in 1961). Water circulates through the group head and the brew boiler, the metal of the group (8lbs of solid brass
with chrome plating) acts as a heat sink to keep the water temperature stable as you make your espresso. The
Minima is easy to use with simple controls.
Paolo Cortese (Designer, Director), Antonio Nurri (Director & Head of marketing
Minima Supplied Items.
 The Minima Espresso machine
 2 portafilter handles
 Double and single portafilter body
 Double basket, single basket and blind filter (rubber disk)
 Spare group gasket
 4 felt pads and 4 rubber pads
 Group cleaning brush
 Plastic Tamper
 Raised Cup stand (for espresso cups)
 Appropriate certifications, This manual and any additional
notes
Product Safety Notice
This manual is an integral and essential part of the product. Carefully read all warnings as they provide important
information required to install, use and maintain the Minima
Inspection and unpacking
After having removed the packaging, inspect the Minima for shipping damage. If you have any doubts, do not use
the Minima and contact a professionally qualified person or your dealer. Always keep all packaging including any
plastic bags. Keep packing materials out of reach of children and dispose of responsibly in accordance with your
countries recycling and disposal arrangements.
General Installation precautions
Before switching on the Minima make certain that the rating indicated by the label/specifications matches the
available power supply. The serial number and rating label is located at the rear of the machine. Installation
should be in line with the standards and laws within of the country where installed. We always recommend the
installing the Minima on a circuit protected by an RCD.
For electrical safety, this machine requires a ground or earth and a properly grounded electrical outlet with
adequate capacity for the current draw of the machine. If in any doubt, contact a certified electrician who can
check that the electrical outlet. We do not recommend the use of extension leads, adaptors or any other
equipment between the Minima and the mains supply socket (apart from a residual current device).

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Always ensure the portafilter is locked in correctly
Failure to do this can result in the portafilter coming undone, with the risk of scalding or breaking any cups below.
Please lock to the 6:30 position or further for safe operation
Unpacking the Minima
The Minima comes in a thick cardboard box with shaped packaging designed to protect it. Do not place the
Minima onto a surface subject to scratching or damage before installing the felt or rubber protectors. The felt
protectors allow the machine to easily slide on the counter top for filling. Use the rubber pads if you don’t need to
slide the machine.
Try not to damage the styrene packaging, as you may need it should you ever wish to transport/post the machine
without damage.
The Accessories
The machine comes with various accessories in padded plastic bags in the top section of packaging. Remove
these first before removing this section of packaging.
The internal tank
Access the internal tank for refilling
removing the steel cover as shown and
the internal plastic dust cover to refill the
tank with water. To remove the tank,
remove the both tubes and hold them to
one side then simply withdraw the tank
from the machine.
Remove the tank and wash in warm
soapy water before first use. Replace
both tubes in the tank. The longer of the
two tubes must reach all the way to the
bottom of the tank (this is the pump inlet),
make sure the small particulate filter is in
place. The shorter tube is the "expansion
valve" vent tube and need not reach the base of the tank or be under water. It is normal for water to exit this tube
during an espresso shot, when the machine is heating after a shot, or on initial warm up. Make sure both tubes
are in the tank and not kinked, do not place the inner lid on the tank, or replace the tank cover at this time.

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Minima Specifications
Dimensions: Height
x
Width,
x D
epth
370 x 270 x 440 mm
Weight: 21 kg approx
Voltage & Power (Max): 230 V-50Hz, 2480W (when used in simultaneous heating
mode), 1480W when used in brew boiler priority mode
(measured at UK Voltage).
Water Tank: 2.6 litres, removable with low water sensor. 2 litres usable
(approx)
Boilers: Twin insulated boilers, AISI 316L Stainless Steel (surgical
grade) 8mm end plates, 2mm thick walls. Incolloy 800 heating
elements.
Service boiler 2.3l (steam and hot water), 1200W
Brew boiler 800ml and 1000W
Pump Pressure:
15 bar max – regulated to 9 bar. (adjustable)
Gro
up Head:
Single E61 solenoid group (58mm)
Supplied Accessories  2 portafilter handles
 Double and single portafilter body
 Double basket, single basket and blind filter (rubber
disk)
 Spare group gasket
 4 felt pads and 4 rubber pads
 Group cleaning brush
 Plastic Tamper
 Raised Cup stand (for espresso cups)
 Appropriate certifications, This manual and any
additional notes

D
etachable
country specific
mains lead.
Construction: All stainless steel frame, body and boilers, removable drip tray,
cup warmer. Metal feet (height adjustable).
Water/Steam Hot water on demand. Steam on demand, wands on ball joint
mounts. Steam Boiler can be switched On/Off as required
Pressure Gauge
Group mounted (direct measure at coffee).

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The major controls of the Minima
PID Display
1. Shows Brew and service boiler
temperature
2. Shot timer (automatic)
3. Low water indicator (H2O)
4. 2 buttons to set brew temperatures
or access advanced settings
Power switch
5. Middle =
Minima is Off
6. Up = Brew
boiler only
7. Down = Brew
and Service
boilers on
Pressure of coffee
extraction/Group
pressu
re gauge
Cup warming tray
Steam
tap
Hot water
tap
Hot water
outlet
Portafilter –
loaded by lifting
into group head
with handle at 8
o’clock position
and moving anti
clockwise until
lugs engage (do
not apply too
much force, or jerk
handle
)
Vent for
release of
pressurised
water from
E61 group
Water tank hatch
Steam wand
E61 group
Brew switch
UP - to start making
espresso
DOWN - to finish and vent
group
Height
adjustable
feet
Drip tray
cover
(slides out)

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Important Note
If you don't read anything else, carefully read pages 8 and 9. It contains important information to prevent
damage to the Minima and correct setup and commissioning. There is a Video Playlist with various hints and tips.
It can be found at the following link and may have new Videos added from time to time. Some videos may be of
an earlier beta machine and have been left in where the process is identical.
https://tinyurl.com/Minima-User-Guide
The Minima is a machine that is simple to use even though it is a dual boiler machine. The single LED display
shows temperature, shot timer, low water visual indication and to access both temperature settings and advanced
settings. Throughout the guide, I will reference the "Brew Switch" and the "Power Switch".
The brew switch has two
positions, OFF (down) and Brew
(up). When you lift the switch,
the pump will run and water will
flow from the E61 group. When
you lower the switch, the pump
will stop and the vent solenoid
will activate and depressurise
the group.
The power switch has three
positions:
 Middle is off (the
machine is off and the
boilers do not heat).
 Up is for the coffee
brew boiler only and
with this setting the
machine will use around
70W per hour, at current
UK electricity prices
that's less than 15p per
day if the machine is on
from 9 am to Midnight.
 Down is for the coffee
and service boiler on together and the system will use more power. The service boiler needs to be on
for hot water and steam production. We recommend that you switch on the service boiler only when you
need it and not routinely run the machine with it switched on.

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Preparing the Minima for operation
You can think of this process as bringing your machine to life, be watchful during this time for anything abnormal
and ensure everything works correctly. Do not lock a portafilter into the group yet.
Filling the Minima for the first time
There are a few precautions when first commissioning any dual boiler and it is important to follow these
procedures to avoid unnecessary stress or damage to the machine, power on the Minima at step 3 and
not before.
1. Fill the water tank with clean water suitable for coffee machines (not high in lime scale forming
minerals).
2. Place a container under the E61 group (no portafilter should be loaded at this time)
3. Now move the Power Switch to the UP position (coffee brew boiler only). Wait until the software
revision has finished showing and the machine is fully booted up (about 5 seconds).
4. Press and hold the right hand display button for a few seconds until OFF shows in the display (this
ensures the heating elements are off).
5. Switch the Brew Switch to the brew position (up),
6. Once water flows from the E61 group for 5 seconds move the Brew Switch to the OFF position
(down). Water will stop flowing from the group
7. The pump may continue to run as it completes the fill of the service boiler.
8. Make sure the water tank water level is dropping and topped up as required.
9. Once the pump has stopped running, press the right hand display button once and Minima will now
start heating the brew boiler.
10. Move the Power Switch to the down position, wait for both service and brew boiler to heat.
11. Set the service boiler and steam boiler temperatures.
a. Press the left hand button once T1 (Coffee Boiler) will show in the display, quickly press the right
hand button and a temperature in C will show. Press the right (up) and left (down buttons) until
you get 93C.
b. Wait a moment and then T1 will show in the display, press the down button and T2 (Service
boiler) will display, quickly press the right hand button and a temperature in C will show. Press
the right (up) and left (down buttons) until you get 125C
c. Wait until T2 shows, continue waiting and Minima automatically exits temperature setting mode.
i. To go straight to the T2 setting, just press the left button twice.
ii. If at any time you wish to exit temperature setting mode, simply wait for about 3 or 4
seconds
The above sequence helps protect the heating elements, brew boilers in ALL dual boiler machines do not have level sensors and it is why you
need to see water flow for 5 seconds from the E61 group. If the machine comes from a retailer, testing prior to shipping could mean, water
flows immediately from the group and the pump may only run for a few seconds longer to fill the service boiler. The above procedure
assumes a machine with empty boilers.
It is possible an A7 error will pop up once or twice during commissioning with empty boilers, if it does simply
switch the machine off (wait 10 seconds) and switch on again.

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Flushing the Minima before using
The manufacturing process and any subsequent testing will leave particles and tainted water within the machine.
It is extremely important to ensure you flush the machine before using. You may do this immediately after
successfully commissioning the machine. After the flushing process, you can choose to have the brew boiler or
brew and service boilers on.
1. Fill (or refill) the plastic water tank with Filtered water, or ensure boiler safe water is used.
2. Power switch down (both boilers)
3. Brew Switch up and draw brew water through E61 group for 40 sec, wait 1 minute and repeat. Do this
step 5 or 6 times, smell and taste water to ensure it is clean.
4. Place a container under steam wand and open tap to draw steam for 5-10 seconds
5. SWITCH MACHINE OFF
6. Place a container under the hot water outlet and open tap to drain as much water as you can (you will get
approx 1400 ml).
7. Refill water tank then switch machine back on. Power switch UP for Brew boiler heating only (just in case)
and allow service boiler to refill (approximately 2 minutes), but after 1-minute power switch to Middle for
60 seconds to rest pump, then return to UP position again. Ensure service boiler is filling and water level
in storage tank drops.
8. You may have to repeat steps 4 to 7 more than once if any taint or taste remains in the water.
9. Refill water tank, your ready to make coffee
NB: Discard all water drawn from the machine during this flushing process. If the machine is unused for an
extended period (you go on holiday for more than 2 weeks), it may be useful to repeat this process
Grinders
The temptation might be to use an inexpensive grinder unsuitable for the machine. To get the most benefit use a
grinder costing from approximately 30-50% of the machines value. To give a real world example, a grinder such
as the Eureka Mignon, Mazzer Mini or better grinder would be an excellent choice and better results
obtained with grinders that are more expensive.
The Minima is able to use coffee ground a little finer than other machines and less expensive grinders tend not to
grind as well at the finer settings.
Coffee
To do the Minima any justice at all, coffee must be fresh. You should know the roast date of the coffee and only
use quality coffee from good roasters. Ideally, the coffee should rest for at least 5 days from the roast date before
using, often even longer. Use the time recommended by your roaster for resting any specific coffee before use.