Coffed SR 5 User manual

Operation manual SR5
February 2018 Page 2
CERTIFICATE OF MANUFACTURE CONFORMITY
Coffed Private Limited Company, ul. Ceramiczna 28, 64-920 Piła PL
hereby confirms that the:
Coffee roasting line:
Type: SR5
is in conformity with the following European directives and standards::
Machinery directive MD 2006/42/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 ISO12100
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
Piła, Poland February 13th, 2018r.
…………………………………………………………………………
(Damian Elcessor – Coffed Private Limited owner)

Operation manual SR5
February 2018 Page 3
Table of contents
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
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. Chaff cyclone 8
2.2.3. Control panel 9
2.3. Commissioning and connecting to the installations 9
2.3.1. Electrical installation 9
2.3.2. Gas installation 9
2.3.3. Exhaust installation 10
2.3.4. Start-up 10
2.3.5. Drum gap setup 10
WORKFLOW DESCRIPTION 11
3.1. Control panel screens 11
3.1.1. Operator’s password screen 11
3.1.2. Start screen 12
3.1.3. Roasting screen 13
3.1.4. Roast charts screen 14
3.1.5. Recipe selection and edition screen 16
3.1.5.1 Current recipe preview 17
3.1.5.2 Recipe edition 20
3.1.6. Maintenance screen 23
3.1.7. Faults and errors screen 25
3.2. Manual roasting mode 27
SERVICE AND MAINTENANCE 28
2. TROUBLESHOOTING 28
3. REPAIRS 29
4. DISPOSAL AND NEUTRALIZATION 30

Operation manual SR5
February 2018 Page 4
GENERAL INFORMATION
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.
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
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 SR5
February 2018 Page 5
Intended use
The equipment is working safely only when it is used for its designed purpose.
The SR5 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.
1.1 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
1High voltage – it is prohibited to open the marked door without disconnecting
the machine from electricity.
2Hot 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.
INSTALLATION AND COMMISSIONING
2.1. General characteristics of the equipment
The SR5 coffee roasting line has the following parameters:
Efficiency: up to 20kg of green coffee per hour
Roasting time: 8 – 20 min per batch
Batch size: 4 - 5kg 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 SR5
February 2018 Page 6
Gas line diameter: ½ inch
Gas consumption: 0,3 kg/roast batch
Electric voltage: 230V single phase, 50Hz (L1, N, PE)
Maximum power consumption: 12A
Exhaust chimney diameter: 6mm
Total weight:
Space required:
Air pressure:
Air pressure line diameter:
380kg
12 m2
6-8 mbar
8mm
Ceiling height: 2,7m
2.2 Technical description

The SR5 coffee roasting line consists of the following elements:
Roaster
1A. Cooling bin (integrated with the roaster) 1B. Steering panel 1C. Green coffee hopper
1D. Inlet flap 1E. Drum door 1F. Cooling bin flap
2. Chaff cyclone
Pic.1 SR5 coffee roasting line general overview

Operation manual SR5
February 2018 Page 7
2.2.1 Roaster with cooling bin
Pic.2 Roaster with cooling bin overview
This is the main part of the SR5 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: 1658mm
Width: 810mm
Length: 1428mm
Weight: 330kg

Operation manual SR5
February 2018 Page 8
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:
1847mm
Width: 413mm

Operation manual SR5
February 2018 Page 9
Commissioning and connecting to the installations
The commissioning of the SR5 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.
Electrical installation
The SR5 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.
Gas installation
In order for the SR5 coffee roasting line to work properly, LPG or natural gas source needs to be
connected. The gas train diameter is ½ inch.
Exhaust installation
The final user is obliged to connect the SR5 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 123mm.
Warning:
Place, where roaster will be placed, should be supplied in air ventiation. For safety reason, place should
be also equipped in carbon dioxide sensor.
Start-up
After all the above media (points 2.3.1. – 2.3.4. are connected) the SR5 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 SR5
February 2018 Page 10
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.
WORKFLOW DESCRIPTION
Control panel screens
The SR5 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.3 Console

Operation manual SR5
February 2018 Page 11
Operator’s password screen
Pic.10 Operator’s password screen
Operator's password screen is visible after turning ON machine. The operator needs to put 4 digit
password to enable roaster. Standard password is: 1234. Password should not be given to unauthorized
personnel.

Operation manual SR5
February 2018 Page 12
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 SR5
February 2018 Page 13
– 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
– stop roasting in automatic mode (hold for one second)
Roasting screen
Pic.14 Roasting screen

Operation manual SR5
February 2018 Page 15
9.
Colling bin arms on/off
Cooling fan on/off
10. Drum door open/closed
11. 1. 2.
1. Save the current roast into the flash memory
2. Roasting from the selected recipe/profile
12. Burner power (range 20%-100%)
13. Burner power controls
14. Burner on/off
15. Drum and exhaust fan on/off
16. Exhaust fan power (range 60%-100%)
17. Coffee temperature inside the drum (oC)
18. Current roast time (mm:ss)
19. Exhaust fumes temperature (oC)
Table.1 Roaster controls functions list

Operation manual SR5
February 2018 Page 16
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 SR5
February 2018 Page 17
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%
Table 3. Roast chart screen buttons list
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 SR5
February 2018 Page 18
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
Current recipe preview
Pressing the opens the recipe preview screens
Pic.17 Recipe preview screen 1