Rongzi YF-650 T2 User manual

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WARNINGS
This appliance is not intended for use by persons (including children) with reduced
physical,senory 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.
Make sure the power plug is offline when cleaning, also, Care is needed while
handling cutting blades during cleaning.
If the supply cord is damaged, it must be replaced by the manufacturer or its service
agent or a similarly qualified person in order to avoid a hazard.
Correct Disposal of this product
This marking indicates that this product should not be disposed with other household
wastes throughout the EU. To prevent possible harm to the environment or human
health from uncontrolled waste disposal, recycle it responsibly to promote the
sustainable reuse of material resources. To return your used device, please use the
return and collection systems or contact the retailer where the product was purchased.
They can take this product for environmental safe recycling.
Warranty Information
The manufacturer provides warranty in accordance with the legislation of the
customer's own country of residence, with a minimum of 1 year, starting from the date
on which the appliance is sold to the end user.
The warranty only covers defects in material or workmanship.
The repairs under warranty may only be carried out by an authorized service centre.
When making a claim under the warranty, the original bill of purchase (with purchase
date) must be submitted.
The warranty will not apply in cases of:
Normal wear and tear incorrect use, e.g. overloading of the appliance; use of non
approved accessories; Use of force; damage caused by external influences; damage
caused by nonobservance of the user manual, e.g. connection to a non- suitable mains
supply or non compliance with the installation instructions. Partially or completely
dismantled appliances
This appliance has been designed solely for grinding coffee beans. Any other use is
understood to be improper, and consequently hazardous. The manufacturer cannot
be held responsible for any damage as a result of improper or incorrect use. Do not
use the appliance for grinding other types of food, or anything else. THE COFFEE
GRINDERS AND COFFEE GRINDER-DOSERS MANUFACTURED BY OUR
COMPANY ARE INTENDED FOR SKILLED PERSONNEL ONLY FOR
PROFESSIONAL USE AND NOT FOR HOUSEHOLD USE. The user must be an
adult. Do not allow children or incapable persons to use the appliance.

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Content
1) FOREWORD ................................... 3
2) Technical Specifications: ................ 3
3) General Description ....................... 4
4) INSTALLATION AND WIRING .......... 4
4.1) PACKAGING ........................................................................................................... 4
4.2) Installation and wiring............................................................................................. 5
5) OPERATION OF THE APPLIANCE ..... 5
5.1) PRELIMINARIES .................................................................................................... 5
5.2) SWITCHING THE APPLIANCE ON AND OFF.................................................. 5
5.3) ADJUSTING GRINDING ....................................................................................... 6
5.4) COFFEE DOSE ADJUSTMENT .......................................................................... 7
6) PROTECTIONS ................................ 8
6.1) THERMAL OVERLOAD PROTECTION ............................................................. 8
6.2) OVERHEAT OF THE BLADES PROTECTION ................................................. 8
7) WARNINGS REGARDING SAFETY .... 8
8) MAINTENANCE .............................. 9
9) CLEANING THE APPLIANCE........... 10

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1) FOREWORD
Thanks for purchasing our ODG grinder (YF-650 T2) grinder, The ODG is a
commercial appliance to be used in coffee shops, espresso bars, hotels, restaurants,
etc. The grinder will grind whole bean coffee into variable, user-selectable (form super
fine to course) coffee powder on your demand. Please read this manual from cover to
cover before using the appliance as it contains important instructions for the safety,
operation and maintenance of the appliance. Look after this manual and keep it in a
safe place.
The manufacturer reserves the right to make changes to the product and to the
manual without notification.
2) Technical Specifications:
.TECHNICAL SPECIFICATIONS
Height: 560mm
Width: 210mm
Length: 300mm
Weight: 15Kg
Burrs diameter: 64mm
Hopper capacity: 1200gr.
Electrical Specifications: 230V/50Hz or 110V/60Hz Power: 350W
Grinding capacities: 6-9Kg/hour

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3) General Description
4) INSTALLATION AND WIRING
4.1) PACKAGING
While opening the packaging, check carefully to make sure the appliance is intact and
there are no signs of damage. If in any doubt, do not use the unit and contact
personnel with the appropriate professional skills.
The packaging materials must be kept away from children as they represent a
potential source of danger.

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Keep the packaging until the warranty has expired!
4.2) Installation and wiring
The appliance must be installed by skilled technical personnel in conformity
with the safety rules in force. Incorrect installation may result in injury of persons or
animals, or damage to property, for which the manufacturer cannot be held
responsible.
The appliance must be placed on a stable, flat surface.
Before plugging in the appliance, make sure the voltage and frequency values of
the supply mains correspond to the ratings indicated on the label featuring the
appliance’s technical data.
The wall socket must be fitted with an efficient earth contact. Consequently, it is
essential to make sure the earth system is efficient and in conformity with current
safety rules. If any doubt, ask appropriate professional skills personnel to check
the system thoroughly. IT IS COMPULSORY TO EARTH THE APPLIANCE. The
manufacturer cannot be held responsible in the event this regulation is not
complied with.
It is essential to make sure the ratings of the system are suitable for the power
absorbed by the appliance - as indicated on the label featuring the technical data and
that the wall socket is protected against over currents.
Do not use extension cables, plug adapters for multiple sockets or makeshift
connections.
In EEC member countries, the regulation in force calls for the external
equipotential terminal () on the outer part of the appliance’s base plate to be
connected to an equipotential node if the installation is to be correct.
THE HOPPER MUST BE PLACED ON THE APPLIANCE AND PROPERLY
FIXED WITH THE APPROPRIATE SCREW OR WITH THE APPROPRIATE
LINCHPIN, ACCORDING TO GRINDER MODEL.
5) OPERATION OF THE APPLIANCE
5.1) PRELIMINARIES
Verify that the hopper is correctly placed on the appliance. Close the locking slide and
fill the hopper with coffee beans. Open the locking slide so that the beans are allowed
to drop into the grinding system.
5.2) SWITCHING THE APPLIANCE ON AND OFF
In order to power up the appliance, set the switch to “I” position. The display located
on the lid of the push button panel will show a counter with the incremental number of
doses ground by the appliance and the temperature of the blazes.After having placed
the filter holder on the filter holder:

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-the push-button on the left of the bottom line (indicting one cup) to grind and
dispense a single dose;
-the push-button on the right of the bottom line (indicating two cups) to grind
and dispense a double dose;
The counter adds one for each single dose and adds two for each double
dose.
One can manually activate the appliance by pushing the push button on the left
of the middle line for manual grinding (indicating ). Hold down the push
button for manual grinding and the grinder will grind until you lift the fingers.
Also, one can activate the appliance by pushing the push button on the right of
the middle line for 3minutes continuously grinding.
These two modes grinding (manually pushing and 3 minutes grinding)
will not be added in the counter. We suggest using the manual push button
for finding the exact time for one or double dose.
In order to switch off the appliance, please set the switch to “O“ position.
5.3) ADJUSTING GRINDING
In order to achieve finer or coarse grinding, the adjustment disk located under
the hopper must be adjusted.
By rotation the disk clockwise, the coarseness of the ground coffee will be
increased; to fineness, rotation the disk anticlockwise.
The disk remains in the chosen position without having to be locked in place.
The adjustment must be performed with the motor on, and preferably without
any coffee between the grinding blades.
Grind small amounts of coffee in order to determine the optimal degree of
fineness.
Before checking the fineness of the ground coffee, grind some doses of coffee
to fill the duct between the grinding area and the outlet. This operation must be
done whenever the grinding setting has been changed in order to empty the
duct of the previous ground coffee.
The change of the grinding setting might vary the weight of the doses.
Therefore adjust the doses only after the grinding setting.
In the grinder-doser version, if the coffee comes out of the espresso coffee
machine very quickly, it means the coffee is ground too coarse. On the other
hand, if it comes out too slowly, it means the coffee is ground too fine. In
additional, bear in mind that there are many conditions liable to influence the
correct supply, such as the weight of the portions, the compacting, the
espresso machine settings, and the cleaning of the filters.

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5.4) COFFEE DOSE ADJUSTMENT
In order to adjust the weight of the portion dispensed, use the increment/decrement
button controls (“+” and “-“) located on the top line near the display. After having set
the optimal degree of fineness, check the weight of the dose with a digital precision
scale. In order to adjust the dose, just select the dose you wish to adjust and hold
pressing the push button for 2.5 seconds; the display will blink and show the current
setting for the selected dose. By pressing the increment/decrement buttons “+” and “-“,
the grinding time can be increased or decreased and consequently the selected dose
can be increased or decreased. Approximately, a change of 0.1 seconds is equivalent
to a change of dose of 0.3 grams (0.01 ounces). After setting the desired amount of
grinding time, press the pre-selected push button again to confirm and save the data
set and exit from the adjusting program. Use a digital precision scale to check again
the weight of the dose and, if necessary, repeat above mentioned operation.
WHEN YOU ARE INSIDE THE AJUSTING PROGRAM, IT IS NOT POSSIBLE TO
OPERATE THE APPLIANCE.
IF THE APPLIANCE GETS SWITCHED OFF (SWITCH OFF OR POWER OFF)
BEFORE EXITING FROM THE AJUSTING PROGRAM, THE CHANGES ARE NOT
SAVED.
3 MINUTES MODE and MANUAL GRINDING MODE CANNOT BE
PROGRAMMED AND THE DOSES DISPLAY WILL NOT BE ADDED
DURING THESE TWO MODES.
WARM REMINDER:
In order to collect the portions of ground coffee, put the filter into holder under the
grounder outlet all the way. The default setting for one dose is 7sec and 13sec for two

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doses.
6) PROTECTIONS
6.1) THERMAL OVERLOAD PROTECTION
The appliance’s motor is protected against overheating resulting from overcurrents by
a thermal overload protection which, when tripped, cuts off the power supply to the
motor. Should the protection trip as a result of anomalous operation, such as the
grinding blades jamming, the appliance must be turned off using the on-off switch,
UNPLUGGED FROM THE MAINS, AND SKILLED TECHNICAL PERSONNEL
CONTACTED. NEVER PERFORM ANY WORK ON THE APPLIANCE WHILE IT IS
ATTACHED TO THE MAINS, TO AVOID THE RISK THAT MOTOR TURNS ON
SUDDENLY. If the appliance overheats as a result of the motor stopping, allow the
appliance to cool down before performing any repair work.
6.2) OVERHEAT OF THE BLADES PROTECTION
In order to reduce coffee ground agglomeration caused by the blades temperature and
maximum keep the aroma of the coffee.The appliance’s blades temperature is
monitored and showed in the display. The power supply to the motor will be cut off
once the temperature reaches 75centidegree and will be connected again when the
temperature goes down to 40degree.
7) WARNINGS REGARDING SAFETY
This electrical appliance must be used in conformity with the rules in force governing
safe operation.
•WHEN OPERATING THE APPLIANCE, BEWARE OF THE MOVING
MECHANICAL PARTS IN THE AREA OF THE GRINDING BLADES AND OF THE
GROUND COFFEE OUTLET. BEFORE REMOVING THE HOPPER FROM THE
GRINDING SYSTEM, DISCONNECT THE POWER SUPPLY. AVOID REMOVING
FOREIGN BODIES FROM THE GRINDING SYSTEM OR HOPPER WITHOUT
FIRST UNPLUGGING THE APPLIANCE FROM THE MAINS.
Take care, as the grinding blades may continue rotating for a short while even
after the appliance is switched off.
THE USER IS NOT AUTHORIZED TO REMOVE SCREWS OR ANY PARTS
SCREWED ONTO THE APPLIANCE.
In the event the appliance is not working properly or is faulty, contact skilled
technical personnel, and do not attempt to make repairs yourself.
BEFORE PERFORMING ANY WORK ON THE APPLIANCE, INCLUDING
CLEANING AND/OR MAINTENANCE, DISCONNECT IT FROM THE POWER
SUPPLY BY UNPLUGGING.TURNING OFF THE APPLIANCE USING ITS MASTER
SWITCH DOES NOT ASSURE THE SAME CONDITIONS OF SAFETY.
When the appliance is left unattended, the appliance’s power supply must be
disconnected using its master switch (for example, at night, during work breaks,

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midweek closing or holidays).
Do not let liquids of any kind come into contact with the internal or external parts of the
appliance.
Never put ground coffee in the hopper intended only for coffee beans.
Do not tamper with the appliance.
Do not tug on the supply cable to unplug the appliance from the mains.
Do not touch the appliance with damp or wet hands or feet.
Do not use the appliance barefoot.
The manufacturer cannot be held responsible for bodily injury or damage to property if
these regulations are not complied with.
8) MAINTENANCE
It is essential to check the state of the supply cable and plug periodically. IN THE
EVENT THE SUPPLY CABLE OR PLUG ARE DAMAGED, CALL IN SKILLED
TECHNICAL PERSONNEL TO REPLACE THEM, THIS TO PREVENT ANY RISK. IN
- CERTIFIED APPLIANCES, A SPECIAL TOOL IS REQUIRED TO OPEN THE
BASE PLATE TO GET AT THE CABLE.
It is recommended to use original spare parts only.
In order to assure the lasting efficiency of the appliance, skilled technical
personnel must be called in to perform periodical maintenance, including detailed
checks of the state of those components subject to wear.
The state of the grinding blades must be checked periodically (approximately
every 50kg of grinded coffee). Blades in an excellent state will result in a high quality
grinding and prevent the appliances overheating. Replace grinding blades every
400kg of grinded coffee (when using original replacement parts).
Be aware of the appliance’s noise level. In case the noise level is higher than
normal or irregular noises are coming from within the appliance, get certified
personnel to perform an overall check of the appliance.

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9) CLEANING THE APPLIANCE
DISCONNECT THE APPLIANCE’S POWER SUPPLY BY UNPLUGGING IT
BEFORE CLEANING.
THE APPLIANCE MUST NOT BE CLEANED USING WATER JETS.
Do not install the appliance in rooms where water jets are used for cleaning.
THE APPLIANCE MUST BE CLEANED PERIODICALLY BY SKILLED
TECHNICAL PERSONNEL ONLY.
Use perfectly clean, disinfected cloths or brushes for cleaning.
Do not use abrasive products as these are liable to take the sheen off shiny parts.
Hopper
Wash the hopper after having removed it from the appliance, with water and
neutral soap, rinse it accurately with warm water and dry perfectly well.
To ensure great coffee taste, clean the bean hopper periodically. the hopper must
be correctly fixed to the appliance.
Grinding system
After removing the grinding dial, remove the top blade container and clean the
blades, the threads and the entire grinding system with a brush and a dry cloth. After
having placed the top blade container back into place, screw the adjustment ring and
insert, in models fitted with one, the tamper-proof screw in the hole allowing most
adjustment. Place the hopper back into place and then set the grind adjustment.
Funnel
After having removed the lid, clean the funnel and its lid with a dry and disinfected
brush.
Xiamen Rongzi Import&Export Co., Ltd.
Yuyao Yongfei Applicances Co., Ltd.
All right reserved. It is prohibited to reproduce, adapt or translate this document
without prior written authorization. First Edition: July 2014
Last revised: EL02 07/2010