Coffed SR 25 User manual

Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
SR 25 Coffee roasting line
Operation Manual

Operation manual SR25
February 2017 Page 2
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
CERTIFICATE OF MANUFACTURE CONFORMITY
Coffed BDH, ul. Ceramiczna 28, 64-920 Piła PL
hereby confirms that the:
Coffee roasting line:
Type: SR25
is in conformity with the following European directives and standards::
Machinery directive MD 2006/42/EC,
Low voltage directive LVD 2006/95/EC,
Electromagnetic compatibility directive EMC 2004/108/EC
Gas appliance directive GAD 2009/142/EC
What is equivalent with fulfilling the following standards:
1. PN –EN ISO 12100
2. PN –EN 349:1999
3. PN –EN 60204-1
4. PN-EN 125:2013
And that it has been manufactured according to the technical documentation stored by Coffed
BDH
Piła, Poland February 13th, 2017r.
…………………………………………………………………………
(Damian Elcessor –Coffed BDH owner)

Operation manual SR25
February 2017 Page 3
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
Table of contents
1. GENERAL INFORMATION 4
1.1 Information about the operation manual 4
1.2 Liability and warranty 4
1.3 Safety precautions while operating the equipment 4
1.4 Intended use 5
1.5 Hazard indication symbols on the machine 5
2. INSTALLATION AND COMMISSIONING 5
2.1. General characteristics of the equipment 5
2.2. Technical description 6
2.2.1. Roaster with cooling bin 7
2.2.2. Control panel 8
2.2.3. Pneumatic green coffee loader 8
2.2.4. Destoner 9
2.2.5. Chaff cyclone 9
2.3. Commissioning and connecting to the installations 10
2.3.1. Electrical installation 10
2.3.2. Gas installation 10
2.3.3. Exhaust installation 10
2.3.4. Pneumatic installation 10
2.3.5. Start-up 10
2.3.6. Drum gap setup 11
3. WORKFLOW DESCRIPTION 11
3.1. Control panel screens 11
3.1.1. Operator’s password screen 12
3.1.2. Start screen 13
3.1.3. Roasting screen 14
3.1.4. Roast charts screen 17
3.1.5. Recipe selection and edition screen 18
3.1.5.1 Current recipe preview 19
3.1.5.2 Recipe edition 22
3.1.6. Maintenance screen 25
3.1.7. Faults and errors screen 27
3.2. Manual roasting mode 29
3.3. Automatic roasting mode 30
4. SERVICE AND MAINTENANCE 30
5. TROUBLESHOOTING 31
6. REPAIRS 31
7. DISPOSAL AND NEUTRALIZATION 32

Operation manual SR25
February 2017 Page 4
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
1. GENERAL INFORMATION
1.1 Information about the operation manual
This manual is an integral part of the equipment and it needs to be stored in the place where the equipment
is being used. The persons installing, providing maintenance, cleaning or using the equipment should have
constant access to the manual. The manual should be used by qualified personnel only. The knowledge of
and compliance with all safety and operating instructions is essential for safe and proper operation of the
equipment. In addition, when using the equipment all the local regulations regarding health and safety
precautions should be observed.
1.2 Liability and warranty
Personal injury or property damage liabilities and warranty claims are void if they occur as a result of:
- misuse of the equipment
- wrong installation, commissioning, start-up, maintenance or handling of the equipment
- use of the equipment with damaged or faulty functioning of the protective and safety appliances
- not abiding to the precautions in the manual
- making unauthorized changes (including construction changes) in the equipment
- installing additional parts that have not been tested and authorized by Coffed
- making changes in the gas burner that modify the burner manufacturers - set creation of the flame
- insufficient control of the elements, that can wear
- unprofessional repairs
- using the equipment despite being faulty
- using inappropriate fuel
- defects of the power cords that are not a part of the equipment
- using parts that are not original parts supplied by Coffed
1.3 Safety precautions while operating the equipment
The data referring to the safety of operation are in relation to European Union legislation that was in effect
at the date of the equipment’s production. If the equipment is used in industrial conditions, the user is
obliged to check the accordance of the recommended safety measures with the current regulations and to
comply to the newest rules.
If the equipment is used outside the European Union, the user should abide to the health and safety
regulations of the place where the equipment is installed. The specific environmental guidelines also need
to be respected.
Warning!
• The equipment is not designed to be used by persons (including children) with manual, sensory or
mental limitations and by persons without the necessary experience and knowledge.
• The equipment can be used by the above-mentioned persons only under supervision of a qualified
and trained person that is responsible for their safety, and has given them all the necessary
guidelines how to use the equipment.
• Children need to be under strict supervision, to ensure that they are not playing with the
equipment
•This manual needs to be carefully stored. In an event of sharing the machine with other people,
the manual needs also to be shared.
• All of the users must abide to the rules and information included in this manual and also to the
occupational health and safety regulations.
• The equipment is designed to be used in closed spaces only.

Operation manual SR25
February 2017 Page 5
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
1.4 Intended use
The equipment is working safely only when it is used for its designed purpose.
The SR25 coffee roasting line is designed for coffee roasting only and it is forbidden to use it to process
other products. During the roasting process green coffee beans are roasted, the final product are roasted
coffee beans.
Warning!
• Using the equipment to process products other than green coffee beans is prohibited and it will be
recognized as using the equipment not for its designed purpose.
•Using the equipment not for its designed purpose excludes all the liability claims against the
equipment manufacturer.
• The user is solely responsible for the damages and injuries that occurred during the use of the
equipment not for its designed purpose.
1.5 Hazard indication symbols on the machine
The following symbols are located on the device in the places where the hazard can occur:
No
Symbol
Descripton
1
High voltage –it is prohibited to open the marked door without disconnecting
the machine from electricity.
2
Hot surface –it is prohibited to touch the marked surface, when the machine is
working and immediately after switching off the machine.
3
Automatic start –extreme caution is advised, as the marked elements might
start to move without prior warning.
2. INSTALLATION AND COMMISSIONING
2.1. General characteristics of the equipment
The SR25 coffee roasting line has the following parameters:
Efficiency: up to 100kg of green coffee per hour
Roasting time: 8 –20 min per batch
Batch size: 8- 25kg of green coffee
The line needs gas, electric and compressed air supplies in order to work properly, the requirements for the
lines:
Fuel: LPG/G-50 natural gas
Gas pressure: 50 –80mbar

Operation manual SR25
February 2017 Page 6
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
Gas line diameter: ½ inch
Gas consumption: 1,1 kg/roast batch
Electric voltage: 3 x 400VAC
Electric connection type: 3L+N+PE
Maximum power consumption: 16A (32A with optional silos)
Compressed air requirement: 7,5bar of stable pressure
Compressed air line diameter: 10mm
Exhaust chimney diameter: 150mm
Total weight: 1050kg
Space required: 20 m2
Ceiling height: 3m
2.2 Technical description
The SR25 coffee roasting line consists of the following elements:
1. Roaster
1A. Cooling bin (integrated with the roaster)
2. Control panel:
3. Pneumatic green coffee loader
4. Destoner
5. Chaff cyclone
Pic.1 SR25 coffee roasting line general overview

Operation manual SR25
February 2017 Page 7
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
2.2.1 Roaster with cooling bin
Pic.2 Roaster with cooling bin overview
This is the main part of the SR25 coffee roasting line. Green (raw) coffee is processed inside of the roaster.
The beans are poured into a metal drum revolving above a gas burner and heated to a certain temperature
(ca. 200ºC). In the result of the process roasted coffee beans are produced (the main product), a significant
amount of coffee chaff is also released and drawn out of the drum through the exhaust system.
All the media connections (electricity, gas, compressed air) are located at the back of the roaster. The
media need to be connected before starting to work with the machine.
The integrated cooling bin is used to rapidly cool down the coffee immediately after finishing the roasting
process. The cooling bin is equipped with a separate fan to suck out the hot air and stirring arms, that
ensure the coffee is evenly cooled.
Measurements:
Height: 2350mm
Width: 1226mm
Length: 2636mm
Weight: 850kg

Operation manual SR25
February 2017 Page 8
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
2.2.2. Control panel:
Pic.3 Control panel overview
The control panel is equipped with a 10 inch touchscreen, that enables the operator to control all the
functions of the roasting line. The installed software and PLC enable automatic roasting mode, profiling and
recipe storage
Measurements:
Height: 1160mm
Width: 520mm
Length: 600mm
Weight: 50kg
2.2.3. Pneumatic green coffee loader
Pic.4 Pneumatic green coffee loader overview
The pneumatic green coffee loader is used to push coffee into the loading hopper located on the top of the
roaster. It consists of a cone shaped hopper standing on the floor, a fan and stainless steel pipes that
connect it to the top hopper.
Measurements:
Height: 1200mm
Width: 750mm
Length: 1192mm
Weight: 50kg

Operation manual SR25
February 2017 Page 9
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
2.2.4. Destoner
Pic.5 Destoner overview
The destoner gravitationally separates stones from the roasted coffee. Stones are present in the roasted
coffee due to the green coffee production process. The appliance is made out of stainless steel. I consists
of a roasted coffee hopper, under which is a basket used to collect stones and a roasted coffee silo. The
coffee is sucked into the silo thanks to the drag induced by the top fan.
Measurements:
Height: 2411mm
Width: 698mm
Length: 1506mm
Weight: 50kg
2.2.5. Chaff cyclone
Pic.6 Chaff cyclone overview
The chaff cyclone which is connected with the roaster’s exhaust system, separates the chaff from the
exhaust fumes and collects it into a wheeled bin underneath it. The chaff can be then disposed of, and the
fumes are directed into the chimney duct.
Measurements:
Height: 1821mm
Width: 602mm
Length: 602mm
Weight: 50kg

Operation manual SR25
February 2017 Page 10
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
2.3. Commissioning and connecting to the installations
The commissioning of the SR25 coffee roasting line usually takes place at the customer’s premises, after
COFFED technicians install and assemble the line. The coffee for the commissioning needs to be supplied
by the final user, unless stated otherwise in the purchase agreement. The commissioning test
encompasses a mechanic test (that checks all the mechanical parts and their controls) and a technological
test. The technological test covers roasting one batch of green coffee under production conditions.
2.3.1. Electrical installation
The SR25 coffee roasting line is equipped with a five-wire main power cable (three phases, neutral and
ground). The voltage is 400V, 50Hz,
If the local regulations require electric measurements to be made, they need to be performed by authorized
personnel with the necessary qualifications.
2.3.2. Gas installation
In order for the SR25 coffee roasting line to work properly, LPG or natural gas source needs to be
connected. The gas train diameter is ½ inch.
2.3.3. Exhaust installation
The final user is obliged to connect the SR25 coffee roasting line to an exhaust installation according to the
guidelines provided by the line’s manufacturer. An additional COx detector needs to be installed if the local
regulations require that. The chimney diameter is 15cm.
2.3.4. Pneumatic installation
Compressed air needs to be connected to operate the SR25 coffee roasting line. The pneumatic installation
should deliver at least 7.5 bar of constant, stable pressure. Quick fit connectors are used to connect the air,
the diameter of the pipe is 10mm.
2.3.5. Start-up
After all the above media (points 2.3.1. –2.3.4. are connected) the SR25 coffee roasting line can be
started. The main power switch is located on the left back side of the machine (when facing it).
Pic. 7 Main power switch Pic.8. Main power switch location

Operation manual SR25
February 2017 Page 11
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
2.3.6. Drum gap setup
The delivered machine has the drum gap set up for roasting coffee.
A wrench used for setting up the gap between the drum and the front cast iron mold is delivered with the
roaster (turning it right widens the gap, turning it left closes it). When the roaster is cold, and green coffee is
poured into the drum, particles smaller than 2mm may fall underneath it. This should stop after the roaster
is warmed up.
Warning!
The gap should not be smaller than 2mm when the roaster is cold, as it may result in damaging the
transmission.
3. WORKFLOW DESCRIPTION
3.1. Control panel screens
The SR25 coffee roasting line is controlled via a control panel (pic.3). All of the control elements are located
on the console (pic. 9). The functions and information regarding the operation and workflow of the machine
are displayed on the 10 inch touch panel display using respective screens.
LEGEND:
1. TOUCH PANEL DISPLAY
2. EMERGENCY DRUM OPENING
3. USB SLOT
4. ERROR RESET
5. BUZZER
6. MAIN EMERGENCY SWITCH
7. SAFETY CIRCUIT RESET
8. COOLING BIN EMERGENCY SWITCH
PIc.9 Console

Operation manual SR25
February 2017 Page 12
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
3.1.1. Operator’s password screen
Pic.10 Operator’s password screen
The operator’s password screen is visible after turning the machine on. The operator needs to insert a four
letter password in order to start working with the appliance. The password should not be given to
unauthorized personnel.
Pic.11 Operator’s password screen – inserting the password
After the correct password is inserted icons will show up in the right top corner of the screen. After
pressing the icon, the coffee line’s start screen will be displayed. The operator’s password screen will
not be accessible until the next startup of the line.

Operation manual SR25
February 2017 Page 13
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
Pic.12 Operator’s password screen after the correct password has been inserted
3.1.2. Start screen
Pic.13 Start screen
The manufacturer’s details, name, type and serial number of the machine are visible on the start screen.
The number of workhours is displayed by the icon –it is the number of hours when the burner of the
machine was working.
Eight buttons are visible on the right side of the screen. Their functions are the same for all of the screens,
on which they are displayed:

Operation manual SR25
February 2017 Page 14
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
–go to the start screen
–go to the roasting screen
–go to the roast charts screen
–go to the recipe selection and edition screen
–go to the service screen
–go to the faults and errors screen
–start roasting in automatic mode
–open drum in automatic mode (hold for one second)
–stop roasting in automatic mode (hold for one second)
3.1.3. Roasting screen
Pic.14 Roasting screen

Operation manual SR25
February 2017 Page 15
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
The roasting screen allows the operator to control all the functions of the SR25 coffee roasting line in order
to do the coffee roasting process. The displayed information include the status of the burner, motors, flaps
and the work mode (manual automatic). The full roasting process can be carried out using this screen only.
The displayed information:
No.
Icon
Description / function
1.
Roasting mode selection. When the slider -
Is at the side, then the machine works in manual mode,
when it is on the side, the machine works in automatic
mode
2.
Drum revolutions per minute (range 35-52)
3.
Automatic release of the coffee from the hopper into the
roaster on/off
4.
Hopper flap open/closed
5.
Destoner’s fan power
6.
Screenshot saved into the memory (a flash drive needs to be
inserted into the slot on the console)
7.
Current date and hour
8.
Current roasting mode
9.
Last roast time
10.
Chaff bin emptying mode
11.
Pneumatic green coffee loader on/off
12.
Destoner fan power controls
13.
Destoner on/off, cooling bin flap open/closed. Pulsating arrow
indicates that the destoner is starting.
14.
Cooling bin arms revolutions per minute (range 7-12)

Operation manual SR25
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Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
15.
Colling bin arms on/off
Cooling fan on/off
16.
Drum door open/closed
17.
1. 2.
1. Save the current roast into the flash memory
2. Roasting from the selected recipe/profile
18.
Burner power (range 20%-100%)
19.
Burner power controls
20.
Burner on/off
21.
Drum and exhaust fan on/off
22.
Exhaust fan power (range 60%-100%)
23.
Coffee temperature inside the drum (oC)
24.
Current roast time (mm:ss)
25.
Exhaust fumes temperature (oC)
Table.1 Roaster controls functions list

Operation manual SR25
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3.1.4. Roast charts screen
Pic.15 Roast charts screen
This screens enables to monitor the different parameters of the roasting process. The following data about
the current roast is displayed in relation to the time that has passed since putting the green coffee into the
drum:
No.
Line color
Parameter
1.
white
Coffee temperature
2.
yellow
Burner power
3.
red
Exhaust fumes temperature
4.
blue
Exhaust fan power
Table.2 Roast chart parameters list
The following buttons, that allow to control the roasting proces are also on this screen
No.
Icon
Description / function
1.
Pressing this button for the first time, allows to indicate the start of the “first
crack”phase on the chart, pressing it for the second time indicates the end
of this phase.
2.
Pressing this button for the first time, allows to indicate the start of the
“second crack”phase on the chart, pressing it for the second time indicates
the end of this phase.

Operation manual SR25
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3.
Burner power controls:
Pressing the „+” increases the power by 5%,
pressing the „–” decreases it by 5%
4.
Exhaust fan power controls:
Pressing the „+” increases the power by 5%,
pressing the „–” decreases it by 5%
5.
Zoom of the charts on
Zoom of the charts off
Table 3. Roast chart screen buttons list
3.1.5. Recipe selection and edition screen
Pic.16 Recipe selection screen
The recipe selection screen allows the operator to select and view one of the previously saved recipes for
the automatic roasting mode. The recipes are saved on the flash drive that needs to be connected to the
control panel. The following buttons are on the screen:

Operation manual SR25
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Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
No.
Icon
Description / function
1.
View the current recipe
2.
Edit the selected recipe
3.
Save the recipes from the PLC to the flash drive
4.
Load the recipes from the flash drive to the PLC
5.
Edit the names of the recipes
Tablel 4. List of the recipe selection screen
3.1.5.1 Current recipe preview
Pressing the opens the recipe preview screens
Pic.17 Recipe preview screen 1

Operation manual SR25
February 2017 Page 20
Coffed BDH | ul. Ceramiczna 28 | 64-920 Piła PL | tel[phone] | www.coffed.pl
Pic.18 Recipe preview screen 2
Pic.19 Recipe preview screen 3