Rocket R 58 User manual

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Rocket R 58
Dual Boiler Espresso Coffee Machine

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Contents
Rocket RE 58 Dual Boiler espresso machine 3
Important safeguards 4
Introduction 5
Instruction for use 6
Installation 10
Technical data 11
Start up 12
Programming the machine 13
Preparing espresso 18
Dispensing steam 20
Dispensing hot water 21
How to make great espresso 22
How to texture milk 23
How to clean your Rocket R 58 25
How to disassemble/dismantle the machine 27
Routine Maintenance 28
Espresso glossary and recipes 29
Trouble shooting 30
Setting the pump pressure 32
Connection to water supply 33
Alarm messages 34
For European Community countries: declaration of CE conformity 35

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Rocket R 58 Dual Boiler espresso machine
Most dual boiler PID espresso machines measure the water temperature used for the
extraction in the brew boiler. The boiler temperature reading is then converted into a
“group extraction” temperature. This information is misleading and inaccurate, as
the digital readout does not display the real temperature at the group rather the
temperature the manufacturer wishes the user to see.
Rocket Espresso measure the boiler temperature and display the boiler
temperature.
PID displayed boiler temperature
Group temperature measured using
SCASE (*) Ambient temperature (**)
103 °C
217.4 °F
90.8 °C
194.0 °F
104 °C
219.2 °F
91.7 °C
195.8 °F
105 °C
221.0 °F
92,0 °C
197.6 °F
106 °C
222.8 °F
93.5 °C
199.4 °F
107 °C
224.6 °F
94.6 °C
201.2 °F
108 °C
226.4 °F
95.3°C
203.0 °F
109 °C
228.2 °F
96.2 °C
204.8 °F
(*) The “SCASE” Thermofilter elevates the art of espresso by employing applied
measurement science. Very convenient brew temperature measurements are now
possible through use of the Thermofilter. The results of these measurements enhance
machine optimization for specific coffee blends, enable individual coffee shops to
establish enhanced quality control procedures for their machinery, and increase
knowledge of the thermal behaviour of espresso machines. This knowledge is
immediately useful in compensating for intermittent duty machine behaviour. The
Thermofilter enables performance comparisons of different espresso machines and
technologies by use of systematic testing protocols. Accurate temperature studies
will result in new machines with enhanced tuneability and stability that produce
better taste than ever before.
The Holy Grail of temperature devices? Well, let’s just say, that this is the state of
the art of something big. How big? Nobody knows for sure. However new machines
coming to the market are being evaluated with this device, and the current World
Barista Championship (WBC) and United States Barista Competition (USBC)
technical standards teams all use this device to test and evaluate the machines used
in competitions.
(**) Ambient temperature 19°C. (66.2 °F)

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Important Safeguards
1. Read all Instructions
2. Do not touch hot surfaces. Use handle or knobs.
3. To protect against electric shock do not immerse cord and plugs in
water or other liquid.
4. This appliance is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities or lack of
experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for
their safety. Children should be supervised to ensure that they do not
play with the appliance.
5. Unplug from outlet when not in use and before cleaning. Allow to cool
before putting on or taking off parts.
6. Do not operate any appliance with a damaged cord, plugs, or after the
appliance malfunctions or has been damaged in any manner. Return
appliance to the nearest authorized service facility for examination,
repair, or adjustment.
7. The use of accessory attachments not recommended by the appliance
manufacturer may cause injuries.
8. Do not use outdoors.
9. Do not let cord hang over edge of table or counter, or touch hot
surfaces.
10. Do not place on or near a hot gas or electric burner or in a heated
oven.
11. Extreme caution must be used when moving an appliance containing
hot oil or other hot liquids.
12. Always attach plug to appliance first, then plug cord into wall outlet.
To disconnect, turn any control to “off”, then remove plug from wall
outlet.
13. Do not use appliance for other than intended use.
14. Save these instructions.

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Introduction
Please read this technical handbook carefully since it provides important
information on the correct installation, use and maintenance of your
coffee machine.
The information contained in this manual is necessary for the safe
installation and operation of your coffee machine.
It should be retained in a safe place for future reference. Copies are
available from your local dealer.
The information contained in this manual relating to installation and
operation is not a substitute for safety instructions and technical data
affixed to the machine and/or its packaging.
The manual provides information that is current at the time of
publication. The information is subject to amendment or
alteration without notice.
Your machine should only be operated in accordance with instructions
contained in this manual and verbal instructions and training provided by
an authorised Rocket Espresso Ltd. dealer.
Installation and maintenance should only be carried out by technicians
and service providers authorised by Rocket Espresso Ltd.
Rocket Espresso Ltd. accepts no liability for injury and damage to
person, persons or property caused by incorrect installation, misuse, and
user negligence, neglect of the machine or any other circumstances
beyond its control.

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Instructions for use
This machine has been designed for the sole purpose of producing
coffee, hot water and steam for hot beverages.
All other uses are outside of the scope of this machine and, therefore,
dangerous and hazardous.
The machine has been designed from safe, accessible, durable
components and materials and manufactured to the highest standards
for use only in home / domestic environment.
The machine should not be exposed to elements such as sunlight, rain,
snow, extreme temperatures etc.
The machine must be operated by responsible adult persons who know
the use of the equipment and should not be used by children, minors or
untrained persons.
To protect against electric shock do not immerse machine, cord and
plugs in water or other liquid and do not ever let the machines
internal parts come in contact with liquids.
The user should be fully conversant with safety operating procedures
contained in the manual and should follow the instructions and advice
provided with.
To ensure maximum performance efficiency, it is essential that technical
service and maintenance is carried out exclusively by Rocket Espresso
Ltd. authorised technicians.
It is the responsibility of the user to notify the manufacturer of any
defects or damages which may affect the safety of the original
installation or future safe operation of the machine.
The user must respect the safety regulations at the point of installation.
The user must check the surrounding areas to ensure safe and hygienic
use is guaranteed.
The machine component’s manufacturers are responsible for the parts
supplied by them. The customer is responsible for the personal use of
the equipment.

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It is the responsibility of the user to ensure that the location of the
machine is hygienic, and that its continued safe operation can be
guaranteed.
When the machine is not being used for long periods of time, the
hydraulic systems should be drained completely and the machine stored
in a temperature above freezing (0°C or 32°F). This will prevent the
hydraulic system from freezing which could damage internal pipes and
boiler.
This appliance is intended to be used in household and similar
applications such as:
• staff kitchen areas in shops, offices and other working environment
• farm houses
• by clients in hotels, motels and other residential type environments
• bed and breakfast type environments
If the appliance should be connected to the water mains:
• The maximum inlet pressure is 0,4 MPa
• The minimum inlet pressure is 0,1 MPa
• You must use the new hose-sets supplied with the machine. Do not
reuse old hose-sets.
All spare parts fitted to the machine must be original Rocket Espresso
Ltd. components.
Before any cleaning or maintenance the machine should be
disconnected from the electric supply.
Never pull the electrical supply cable.
When cleaning the machine never use caustic or abrasive cleaning
chemicals.
To avoid electric shocks:
• Do not immerse machine itself, cord and plugs in water or other liquid
and do not ever let the machines internal parts come in contact with liquids.
• Ensure that the machine is installed with a proper earth/ground in
accordance to local safety practises, codes and legislation.
• Prevent the power cable from being stretched, or pulled tight.

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• Avoid using the machine with wet hands.
• Never operate the machine with bare feet.
Never operate the machine without ensuring the water reservoir contains
water.
The machine must be operated with soft, clean drinking water. This
means that there must be a minimum content of mineral in the water. If
the local water supply has a high mineral content use a water softener. A
build up of mineral deposit may restrict the flow of water within the
hydraulic systems causing damage to the machine and risking personal
injury.
The machine must be switched off whenever it is left unattended.

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Description of components Rocket R 58
FIG. A
1
Steam wand. Can become hot and cause burns.
2
Steam valve handle: turn left to open, turn right to shut.
3
Cups tray. Never pour any liquid on this tray! It will filter inside the
equipment and cause electrical shocks and serious injuries. Danger!
4
Hot water valve: turn left to open, turn right to shut.
5
Hot water wand. Can become hot and cause burns.
6
Pump pressure gauge
7
Lever. It’s metal parts can become hot and cause burns. Caution!
8
Brewing head (group). It’s very hot and can cause burns! Caution!
9
Filter holder. It’s metal parts can become hot and cause burns. Caution!
10
Drip tray
11
Boiler pressure gauge
12
On / off switch
13
Control light machine “on”

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Installation
All machines are designed to ensure maximum possible user safety. It
is, however, an important responsibility of the user to observe the
following safety codes to further enhance safe installation and operation.
• Always ensure that hazardous packing items such as plastic bags,
Styrofoam, nails, etc. are properly disposed of to prevent accidental
injury to children or other persons.
• If there is evidence of defect or damage to the machine an authorised
Rocket Espresso Ltd. dealer or technician should be notified immediately
so that remedial action can be taken.
• This machine is safe only when it has been correctly connected to an
efficient earthing/grounding system. This should conform to local safety
standards and legislation in force at the time of installation.
• Installation of any Rocket Espresso Ltd. product should only be
undertaken by duly authorised, properly trained and qualified personnel
• Dangerous or improper electrical connections are extremely hazardous
and should never occur.
• Always check the integrity of the components elements of the machine.
• Never fit defective or damaged spare parts. Always request
replacement from Rocket Espresso Ltd. .
• Before connecting the machine to electric supply, always check that
capacity and power rating at least equals the power requirement of the
machine.
• Protect the user by fitting a circuit breaker to electric supply feeding the
machine.
• Never attempt to run the machine with water that is harder than 7°F.
This equipment is to be installed to comply with the applicable
Federal, state, or local plumbing codes having jurisdiction.

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Technical data
Bodywork
All stainless steel (AISI 304).
Brewing head
Commercial brewing head. Weight 4.05 kg (9 lb).
Pre-infusion
Dual pre-infusion system: mechanical pre-infusion system with
progressively working piston and static pre-infusion chamber.
This reflects a smooth coffee extraction with optimum aroma,
body and “crema”.
Dual boiler
system
Rocket R 58 machines come with one dedicated boiler for coffee
water and one boiler for steam and hot water (service boiler). The
guarantee of consistent performances.
Boilers
Coffee water boiler: 0.58 litre capacity. Copper made. External
insulation.
Service boiler: 1.7 litre capacity. Copper made. Boiler comes
with lead free brass end plates and additional external insulation
for optimum thermal retention.
Optimised boiler capacity ratio to heater power. Results in fast
heat up time.
Heaters
Coffee water boiler: 1.400 W
Service boiler: 1.400 W
Max. simultaneous power consumption: 1.550 W
Pump
Full commercial rotary type pump (not vibration type pump) with
external pressure adjustment.
Temperature
control of
boilers
Electronic control by PID sensors inside the boilers for precise
temperature control. True boiler temperature displayed on PID.
Not a “calculated” group temperature display which does not
accurately reflect the “true” group temperature.
Pressure
gauges
One dedicated gauge for pump pressure and one for service boiler
pressure control.
Stainless steel
steam wand
With our cool-touch technology: anti-burn (only the nozzle gets
hot); easy cleaning as milk doesn’t bake on wand; more efficient
steam, as heat is not dissipated around the wand. Steam nozzle
designed for easy milk foaming with fine texture.
Electronically
controlled
Microprocessor controlled automatic level control of coffee water
boiler, service boiler and fresh water reservoir, with low water
level indication system.
Safety valve
Fully certified commercially rated safety valve.
Water supply
2.5 litre fresh water reservoir or alternatively by turning the
control switch, steel braided direct water connection (hard
plumbed) with full drip tray drainage system.
Dimensions
(WxDxH)
31 cm x 44 cm x 41 cm
12.2 in x 17,32 in x 16.14 in
Weight
29 kg / 64 lb
Additionally
Full size commercial one and two cup filter handles and baskets.
One blind filter. Metal tamper. Microfiber towel. Group cleaning
brush. Full training guide and instructions (DVD and manual).

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Start up
Parts which can become hot and cause injuries. Caution!
Never touch the following parts. They are or can become hot and could
cause burns:
1: Hot steam wand and spout
2: Metal parts of steam handle
4: Not insulated metal parts of hot water handle
5: Hot water wand and spout
7: Not insulated parts of lever
8: Coffee brewing group
9: Not insulated metal parts of filter holder

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Programming your Rocket R 58 espresso machine
Your machine is factory set to optimum working parameters.
Nevertheless you can set your personal parameters using the remote controller
(with display) to be connected to the machine.
You can change the settings of the following parameters:
■ Language
■ Hard plumbing to mains or pour over operation
■ Service boiler heating on or off. The service boiler is the one providing steam and
hot water. If you plan to produce only coffee, you can switch the heating of this
boiler off, so only the coffee water boiler (“brewing head boiler”) will be heated.
■ The coffee water brew boiler’s temperature is factory set to 105°C. You can
set the temperature between 95°C and 115°C. The factory setting of 105°C
reflects to an extraction of around 92°C.
■ The pressure of the service boiler is factory set to 1,1 Bar. It can be changed in
a range in between 0,8 Bar and 1,3 Bar.
Fig. D Connecting the remote controller to the machine
Please proceed as follows:
1. Switch the machine off (turning
on/off switch Fig. A/12 to
position “0”).
2. Plug the cable into the machine
(see Fig. D/1). Port left hand
lower side.
3. Now turn machine on (on/off
switch Fig. A/12 to position “1”).
The machine is ready to be programmed.

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The display reads:
Key 1
Key 2
This means the machine is in normal operation mode.
Please proceed as follows to enter programming mode.
1. Keep Key 3 pressed for at least 5 seconds until display reads “Language”.
2. Press Key 1 or key 2 until the display reads the desired language.
3. Press Key 3 to confirm and to move to the next setting which is the
selection of “Water reservoir operation” or “hard plumbing operation”
of the machine.
4. Use Key 1 or Key 2 to program the desired operation and press Key 3 to
confirm and proceed to the next setting which is enabling or disabling the
heating of the hot water/steam boiler (“service boiler”).
5. The display will read “Service boiler heating: off” or “Service boiler
heating: on”. Use Key 1 or Key 2 to program the desired option and
confirm with Key 3. Please note that turning off the heating of the service
boiler means operating only in coffee dispensing mode (using the coffee
brew boiler only).
6. Use Key 1 or Key 2 to program the desired operation and press Key 3 to
confirm and proceed to the next step which is setting the coffee brew
boiler temperature. The factory setting is 105°C. The temperature can be
set within a range from 95°C to 115°C.
7. Use Key 1 or Key 2 to program the desired temperature and press Key 3 to
confirm and proceed to the next step which is setting the service boiler
pressure (hot water/steam boiler). The pressure can be set within a range
of 0.8 Bar to 1.3 Bar. Factory setting is 1.1 Bar.
8. Use Key 1 or Key 2 to program the desired operation and press Key 3 to
confirm. Now the display reads again
Brew boiler
Temperature 105 °C (or the pressure you set)
Important: For “operation” you must exit “programme” mode through the exit
screen only.:
Brew boiler
Temperature 105 °C (or the temperature you set)
P
ok
Brew boiler
temperature 105°C
Key 3

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We assume the machine is properly installed
To use the machine with the direct water connection to the
hydraulic circuit instead of the water reservoir refer to page 33.
Before starting using the machine, please control the following:
1. Lever (7) is completely down.
2. Steam handle (2) is closed.
3. Hot water handle (4) is closed.
4. On/off switch (12) is on position “0” =machine switched off
5. Machine is unplugged.
6. Drip tray (10) and its grid are properly positioned into the machine.

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Now please proceed as follows:
(A)
(B)
1. Remove the cover from the water reservoir Fig. B-2
2. Remove the water reservoir (Fig. B-2 and clean it carefully with food
quality cleaning products. It’s very important that the water reservoir is
always clean! Please repeat this operation every day and whenever
necessary.
3. Fill the water tank with fresh drinking water to just over ¾ full.
4. Place the tank inside the machine taking care not to spill water.
5. Refer to page 33 for connection to the water supply.

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6. Put on the cover on top of the water reservoir.
7. Plug in the machine.
8. Turn the on/off switch (A-12) to the on position “1” and open the steam
handle (A-2). Boiler water fill starts (you will hear the pump’s noise).
9. When the boiler is properly filled with water, the pump will stop (=no
more noise). Now close the steam handle (A-2).
10. The heating up of the boiler water starts.
11. Wait till the boiler pressure gauge (A-11) reads approximately 1 bar.
12. Now open the steam handle (A-2) for 5 seconds to let out some
steam. This operation is very important as it removes possible vacuum
inside the boiler which will reflect in suction of milk inside the boiler itself
once starting to steam milk. Close the steam handle (A-2) again.
13. Wait until the boiler pressure gauge (A-11) reaches again 1 Bar.
14. Pull the lever (A-7) completely up.
14. Allow a cup of water to come out of the coffee brewing group (A-8).
15. Pull the lever (A-7) completely down (water will stop flowing).
Now the machine is ready for operation.

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Preparing one or two cups of espresso.
For the correct espresso preparation technique see page 30
Preparing a single espresso 25ml
1. Use one cup filter handle (with 1 spout)
2. Position the metal one cup filter basket firmly inside the filter holder
3. Fill the single filter basket with freshly ground coffee and tamp the
coffee until the finished height, is level with the internal reference line in
the filter basket.
4. Tamp the ground coffee gently using the tamper supplied with the
machine
5. Tighten the filter holder firmly into the brewing head (A-8).
6. Put one cup under the filter holder spout.
7. Pull the lever (A-7) completely upwards.
8. When the MAXIMUM extraction of 25 to 30 ml of espresso has been
dispensed, position the lever (A-7)completely down to stop the coffee
dispensing process.
9. Remove the filter holder (A-9) from the machine and empty used
coffee grounds.
10. Clean the filter holder.
Hot coffee flows into
the cups from the filter
handle’s coffee spouts.

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Preparing TWO cups or a double espresso coffee. 50 to 60 mls.
1. Use the two cup filter handle (with 2 spouts)
2. Position the metal two cups filter basket firmly inside the filter holder
3. Fill the single filter basket with freshly ground coffee and tamp the
coffee until the finished height, is level with the internal reference line in
the filter basket.
4. Tamp the ground coffee gently using the tamper supplied with the
machine
5. Tighten the filter holder firmly into the brewing head (A-8).
6. Put two cups under the filter holder spouts. Or one cup for a double.
7. Pull the lever (A-7) completely upwards.
8. When the maximum extraction of 50 to 60 mls, or 25 to 30 ml per cup
has been achieved, position the lever (A-7) completely down to stop the
coffee dispensing process.
9. Remove the filter holder (A-9) from the machine and empty used
coffee grounds.
10. Clean the filter holder.
Hot coffee flows into
the cups from the filter
handle’s coffee spout

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Dispensing steam to froth or
heat up liquids
1. Fill a suitable ideally stainless steel pitcher (used for food only) with an
insulated grip with the liquid to be heated up or frothed.
2. Position the steam nozzle of the steam wand (A-1) just below the
surface of the liquid inside the liquid in the recipient. To avoid personal
injury always ensure that the end nozzle of the steam pipe (A-1) is below
the surface of the liquid to be steamed.
3. Turn on steam valve (A-2) fully.
4. Heat up or froth the liquid inside the pitcher.
Pay attention to hot sprays! They may cause injuries.
5. When you’re done, close the steam valve (A-2).
Clean the steam wand (A-1) and the steam wand’s end nozzle carefully
with a non abrasive damp cloth after each single use without touching it
directly with any part of the body to avoid injury or damage due to the hot
surface of steam wand end nozzle. Caution: Hot surface.
Example: Steaming milk. For the correct milk texturing and heating
technique see page 28.
1. Use a clean, cold pitcher and fill 1/3 with cold, fresh milk. If milk has
previously been steamed and stored in the refrigerator, we suggest
adding some fresh milk in order to achieve optimum foam. Milk should
be stored at a temperature around 4-5°C (app. 40°F).
2. Insert steam nozzle (A-1) into the centre milk just below the surface of
the milk.
3. Open steam valve (A-2) rapidly.
4. Steam will come out of the nozzle and froth the milk. The milk volume
will increase rapidly. Please lift the pitcher progressively to make sure
that the steam nozzle is always right below the surface of the milk.