Douwe Egberts Contenta User manual

Version 1.36
02/2004
Service manual
Contenta
Cafitesse 50
Version1.36/72X February 2004
Part number 89210190

Version 1.36
02/2004
Contents
1. Introduction and Safety
2. Installation
2.1 Installation requirements
2.2 Installation procedure
2.3 Handing over the machine to the customer
2.4 Dispenser description
2.5 Specifications
3. Faults
3.1 Indications
3.2 Troubleshooting
4. Programming
4.1 Programming by means of the service device
4.2 Programming by means of the operation panel buttons
4.3 Flow chart service device programming
4.4 Flow chart button programming
4.5 Default settings
5. Functions
5A Water system
1. Disassembly and adjustment
A. Boiler replacement
B. Boiler temperature adjustment
C. Heating element replacement
D. Temperature sensor replacement
E. Level sensor replacement
F. Product valves replacement
G. Disassembly of the water inlet valve

Version 1.36
02/2004
Preface and Safety Instructions 1
Installation 2
Faults 3
Programming 4
Functions 5
Water System
Dosing System
Product Delivery
Cooling System
Housing / Cabinet
Control
Preventive Maintenance 6
Service Procedures 7
Service Information Bulletins 8
Modification Instructions 9
Spare Parts List 10
5A
5C
5D
5F
5G
5K

Version 1.36
02/2004

Introduction & Safety -1 Version 1.36
02/2004
Introducing
The Contenta/Cafitesse 50 forms the low-end extension of the liquid coffee
concentrate brewer range. Serving the ‘small’ segment of the out-of-home market, it
is designed for outlets with an average coffee consumption of 45 cups per day
without significant consumption peaks.
Entering a large and competitive market the Coffee dispenser sets a new standard
with its distinctive features as compared to conventional pour-over coffee service; it
excels in convenience, speed, constant product quality and design.
The Contenta/Cafitesse 50 design is geared towards convenience. It delivers (1)
coffee either in a cup or pot that comes with the machine (additional pots are
available as an accessory) and (2) hot water for tea or instant drinks.
In effect, the Coffee dispenser is a smaller liquid coffee brewer and the technical
aspects in this manual are quite similar to that of the larger ‘Cafitesse’ brewers.
OCS
To exploit the mentioned inherent qualities the Contenta/Cafitesse 50 is placed in
the framework of the ‘Office Coffee Service’-concept (OCS). The concentrated
coffee and other ingredients are distributed directly to the customer by a service/
sales representative, who also performs relevant preventive maintenance tasks,
such as boiler exchange for descaling.
Extensive and/or time-consuming repairs and maintenance, such as preventive
boiler decalcification is basically done in a central workshop. The customer will
benefit from this system, as it greatly reduces the machine-down time.
The efficiency of this system is also warranted by the modular and straight-forward
construction of the dispenser.

Introduction & Safety -2 Version 1.36
02/2004
Safety
General remark concerning safety
This subsection is intended as an overview of the warnings and instructions used in this manual that must
always be observed.

The following general safety precautions apply to the operation and maintenance of the machine and must
always be observed. Non-observance of these instructions or any other safety precautions mentioned in this
manual could impair the machine safety standards, lead to dangerous situations, and the manufacturer
cannot be held responsible for possible damages.
Service technicians must thoroughly read and understand the Service Manual and operating instructions
before they can install the dispenser and put it into operation.The service technician must hand over and
explain the operating instructions to the customer.
Installation, startup, programming and, if required, repair of the dispenser must be performed by trained and
authorized service technicians only.
Hazard intensity levels
There are three different levels of hazard intensity, identified by signal words DANGER, WARNING and
CAUTION. The level of hazard is determined by the following definitions;
DANGER Sudden hazards, that WILL lead to either serious personal injury or death.
WARNING Hazards due to dangerous behaviour that CAN lead to either serious injury or death.
CAUTION Hazards due to dangerous behavior that can lead to either minor injury to persons
or damage to product.
In addition the following symbols have been added throughout the service manual to
emphasize safety measures related to a specific action.
Pay particular attention to the remark preceeded by this symbol.
General warning
Risk of electric shock
Risk of contact with (very) hot liquids or objects.

Introduction & Safety -3 Version 1.36
02/2004
OPERATION
WARNING: Do not use the machine for other than the intended use. The machine is intended for in-door
operation only. Please do not place the machine too close to a sink (wet) or cooking device (hot).
CAUTION: The liquids delivered by the dispenser are hot. Keep hands and body parts clear from the
delivery area while the dispenser is producing coffee or hot water. Keep children away from the
machine.
CAUTION: If the dispenser is not used for a longer period of time (e.g. at night or during the week-end), set
the ON/Stand-by button to Stand-by. The power source should not be interrupted completely,
because the cooling system will not function. Close the water tap if a fixed water connection is
installed.
CAUTION: Connect to a source of filtered drinking water and/or use filtered drinking water to (re)fill the water
tank. Particularly at locations with poor water quality filtered water is highly recommended or may
even be required. Observe the indicated water pressure when a fixed water connection is
installed.
CAUTION: Do not store the machine at locations with a surrounding temperature below 0°C./34°F.
CAUTION: Please note that the driptray capacity is limited to 250 ml/13,5 fl oz. (1~2 cups). Please empty the
driptray in case coffee or water has been delivered while no cup or pot was present.
CAUTION: The customer should clean the machine on a daily and weekly basis as described in the user
manual and instruction label for hygienic and functional reasons.
CAUTION: Always observe basic hygiene and use only food-grade cleaning agents. Clean the machine
parts with a clean damp cloth. Do not spray the dispenser off.
CAUTION: Please allow the internal boiler to cool off before you do relocate or move the dispenser
(recommended waiting time is 3 hours). Always keep the dispenser upright when moving.
ELECTRICITY
DANGER: Never plug a power cord into a wall outlet (or unplug a power cord) when either part is wet or
either part is touched with wet hands.
DANGER: Safety devices must not be bypassed or put out of action.
DANGER: Do not operate any appliance with a damaged power cord or plug.
WARNING: The dispenser must be connected to drinking water supply and to electric power
supply in accordance with local regulations.
WARNING: The dispenser must be connected to a properly fused electric circuit. When the machine
has been relocated, please make sure that the machine does not overload the capacity of the
electrical circuit when plugged in at the new location. Observe the local regulations!
WARNING: Do not connect the dispenser to any power source other than indicated on the rating label.
WARNING: Never immerse power cord or the machine in water or any other liquid.

Introduction & Safety -4 Version 1.36
02/2004
INGREDIENT HANDLING
CAUTION: Ensure that the cooling compartment is properly closed at all times. The coffee quality may
otherwise deterioriate.
Store coffee packs only in a refrigerator at a temperature below 6°C/42.8°F.
Always check the expiration date on the package (‘best before date’) and use the coffee pack
that has been stored for the longest period (first-in, first-out principle).

Installation -1 Version 1.36
02/2004
2. Unpacking and installation
2.1 Installation requirements
• Required tools
- Tools to make the required water connections, if applicable.
- A service device is needed to adjust set volumes, coffee strength, device calibration, etc.
- To remove covers a Pitcher torx no.10 (left, right, rear side cover) and no.15 (tank lid/inlet valve) is required.
• General requirements
Please ensure that the following requirements are met before you install the machine.
Ambient temperature : 1 - 32 °C / 50 - 90°F
Humidity : up to 80 % RH
Power supply : Europe : 230V/10A Europe / Japan :100V/12A / USA : 120V/15A
Determine the capacity of the electrical circuit before the machine is connected to
prevent overload. (min. spare capacity depending on version) It is recommended to
connect to an electrical circuit equipped with a fault current safety switch.
The machine must be connected to a grounded outlet conform regulations.
Water supply : Water pressure allowed: Min. 0.8 bar dynamic pressure/ Max. 10 bar static pressure.
(fixed water connection) Please measure in case of doubt.
Always operate in compliance with local regulations.
Location : Avoid direct exposure to hot or cold air, vibration and excessive amounts of dust.
Do not install the machine in the immediate vicinity of a stove or sink
to avoid extreme temperatures or humidity.
Place the machine on an even stable surface capable of supporting the weight
of the machine (approx. 19 Kg.) and beyond the reach of small children.
The location should allow proper access for operation and maintenance
of the machine as well as enough space behind the machine for ventilation.
Machine dimensions / space requirements
560 mm
22”
325 mm
12.8”
360 mm
14.2”
600 mm
23.6”
recommended clearance
around the dispenser :
120 mm/4.7”

Installation -2 Version 1.36
02/2004
2.2 Installation procedure
(1) Machines shipped with a removable watertank.
See chapter 5A for additional installation of the fixed water connection kit.
7.Place chilled coffee pack
8. Rinse the water system
thoroughly
Installation completed
1.Unpack machine
3.Fill cold water tank
Start
9.Calibrate and program machine
4.Connect power cord
2.Attach labels / operation panel
cover
5.Install drip tray with grille
and trough
6.Switch machine on
7
2
2
3
4
5
6

Installation -3 Version 1.36
02/2004
(2) Machines shipped with a fixed water connection (plumbed-in unit).
7. Place chilled coffee pack
8. Rinse the water system
thoroughly
Installation completed
Check water quality / water
pressure requirements:(min. : 0.8
bar dynamic pressure / max. 10
bar static pressure)
Start
9. Calibrate and program machine
1.Unpack machine.
4
2
2
3
NSF (US)
version
6
5
5
7
*The numbers correspond with the steps of the procedure.
** Size and type of filter may vary depending on local circumstances. Not illustrated here
Additional
labels NSF
version
4. Connect power cord
2. Attach labels / operation panel
cover
3. Place water stop valve,
install water filter**
and connect water supply hose
6. Switch machine on
5. Install drip tray with grille
and trough

Installation -4 Version 1.36
02/2004
Unpacking
1. Unpack the machine.
Attach labels
2. Attach the language specific operation panel cover and the various labels. (removable water tank
version illustrated here) NSF machines feature two additional labels attached to the inside of the
cooling compartment door.
Branding sticker : lower
middle of the door
Operation panel
cover
Quick reference label : frame opposite to water tank
Coffee pot
Drip tray/grille
Trough
Top pad
Bottom pad
Accessory case
containing : Dispenser
(upright)
Carton carrier (dotted line)
Outer carton

Installation -5 Version 1.36
02/2004
3. Depending on the version you are installing, proceed with 3a for machines with a removable water
tank or 3b for machines with a fixed water connection.
3a. Fill the cold water tank.
(Check if the sieve inside the tank is correctly placed over the water outlet)
Fill the cold water tank
Sieve
Outlet
Install Water stop valve, filter and hose
3b. Confirm that the installation conditions are met for usage of the fixed water connection.
Important
- Ensure that the installation conditions are met before you install the fixed water connection. (see page 1)
- Always observe local regulation regarding plumbing!
- Water pressure allowed: Min. 0.8 bar dynamic pressure/ Max. 10 bar static pressure
- Make sure that the caution label indicating these pressure values is in clear sight after installation.
1. Connect the water stop valve to the faucet.
2. Connect the flexible water hose to the machine. (Do not forget to put the sealing ring in place!)
3. Flush the water filter. The necessity of this is depending on the type of filter used. Refer to the
manufacturer instructions.
4. Connect the water filter inlet hose to the water stop valve.
5. Connect the flexible water hose to the water filter.
6. Open the faucet to fill the water filter and the hoses.
7. Loosen the connection between the flexible hose and the inlet valve a little to allow air to escape from the
hose. Reconnect firmly afterwards.
1
2
3
6
4
5
7
1
2

Installation -6 Version 1.36
02/2004
4. Connect the power cord.
Connect the power cord
6. Press the on/stand-by button as illustrated to switch the machine on. The boiler is probably empty
when the machine is switched on for the first time, the heating element remains therefore off until the
boiler has been filled with water.
The indicator LED ‘ Please wait, warming up ’ (boiler temperature low indication) lights on and will thereafter
remain on until the operational temperature has been reached. This will take approx. 8 minutes for
220 V or up to 20 minutes for 110/120 V machines
Switch on the machine
5. Install cup grille, drip tray and trough.
Install drip tray, cup grille and trough
The microprocessor will be initialized. This takes up to 30 seconds. During initialization all LED’s light
on.

Installation -7 Version 1.36
02/2004
Install coffee pack
7. Install the 1,25 l/42.3 fl oz coffee pack. (chilled)
• Check the expiration date.
• Shake the coffee pack at least 10 times.
• Verify that the coffee is completely thawed /
properly chilled.
• Open pack and unfold dosing tube.
• Place the coffee pack in the cooling
compartment and close the door.
Rinse water system
8. Dispense a sufficient amount of coffee and hot water to rinse the water system.
It is recommended to pour no less than 8 cups of hot water and 8 cups or 1 pot of coffee.
This step eliminates the possibility of ‘off-taste’ and ensures the best water quality.
Program the machine
9. Calibrate the machine, set cup volumes and coffee strength. Programming can be done by
means of buttons or the service device. (See also chapter 4 for additional information)
1. Entering the programming mode
• Push the stop and power button simulteanously for 3 seconds.
The LED’s on the operation panel will flash 3 times to indicate that the programming mode has been entered.
During the programming mode the power on LED will blink continuously.
In case the machine has been over a long period (6 months or more) :
(a) for coffee it is recommended to dispense 2 times a double pot from the
machine after installation.
(b) for tea it is advisable to dispense once more 2 pots of hot water the next
morning.

Installation -8 Version 1.36
02/2004
Program the machine
2. Calibrate the machine
• First ensure the through is in place.
• Place a 0.5 litre/16.9 fl oz measuring cup under the coffee outlet
• Push the pot button and keep it pressed until 0.5 litre/1.9 fl oz is dispensed.
• Release the button.
The flow will be automatically calculated (cc/sec) based on the fixed quantity (0.5 litre/16.9 fl oz) and
the time needed to dispense this amount.
3. Coffee cup volume setting
• Place a cup under the coffee outlet.
• Push the coffee cup button until the desired amount is dispensed in the cup.
4. Hot water cup volume setting
• Place a cup under the hot water outlet.
• Push the hot water cup button until the desired amount is dispensed in the cup.
5. Coffee pot volume setting
The volume of the coffee pot is set to 0,9 litre/33 oz and cannot be changed by means of the buttons.
Connect the service device to set another volume (range: 20-999 ml/0.7-33 oz).
6. Coffee strength (ratio) setting
The standard coffee ratio is 1:22. This ratio can be adjusted to meet customer preferences.
Press the stop button and the pot of coffee button to check the actual ratio setting.
Count the number of times that the LED is actually blinking and add (in case the Replace coffee pack
LED lights) or substract (in case the Refill water tank LED lights) this from the offset value (1:20) to
calculate the actual ratio.
Adjusting the coffee strength
To increase coffee strength keep the stop button pressed, while pressing the cup of coffee
button the desired amount of times.
Wait for the Refill water tank LED to light up when the button has
been pressed and proceed.
To decrease the coffee keep the stop button pressed, while pressing the hot water button
strength the desired amount of times.
Wait for the Replace coffee pack LED to light up when
the button has been pressed and proceed.
7. Coffee pot ratio setting (service device only)
From software version 2.09 the coffee strength (ratio) of the coffee pot can be set/changed
independently from the cup ratio. (range 5~99 / default 1:22)
8. Exit the programming mode
Pres the power button once to exit the programming mode.
The power LED stops blinking and lights on.
= 1 : 20 2x = 1 : 22
(coffee less strong) 2x = 1 : 18
(coffee stronger)

Installation -9 Version 1.36
02/2004
2.3 Handing over the dispenser to the customer
Ensure that the dispenser is working flawlessly once the machine has been installed and programmed according to the
wishes of the customer.
Instruct the user(s) of the machine regarding the following items. Good understanding and commitment will contribute to
the overall machine performance! Time spent on customer instruction is in this respect invaluable.
Customer instruction
• Safety
The size and weight of the machine may invite the user to move the machine around. It is important to point out
that hot water can flow out of the machine if it is severely tilted or shaken when it is being lifted or carried.
This risk can be avoided by waiting until the boiler inside the machine has cooled down.
(recommended waiting time mentioned in the user manual is 3 hours)
When a machine with fixed water connection is relocated the water hose contain air. When reconnected this air
may enter the water system and cause malfunctions.
• Basic machine operation & ingredients
• HACCP, hygiene and product storage
• Cleaning procedure (and correct descaling procedure the water tank)
• Indicators and corrective actions
• Quick reference label
• Delivery of products (route-seller)
Materials to be handed over to the customer
• User manual
• Brush (for dosing coil cleaning)
• Additional Quick reference card (NSF version)
Incorrect pack removal may result in a snapped dosing tube
and spilled coffee. Please instruct the customer.
Do not pull
dosing tube may snap!
Tilt and lift
to remove

Installation -10 Version 1.36
02/2004
7
REPLACE COFFEE PACK
REFILL WATERTANK
WARMING UP, PLEASE WAIT stop
COFFEEHOT WATER
6543
1
2
2.4 Dispenser description
3
4
6
9
7
10
12
4
2
8
11
13 14
9. Operation panel
10. Cooling compartment door
11. Cooling temperature high indication
12. Power on/stand-by indication
13. Power inlet
14. Opening for reset switch
Fixed water connection only
15. Water inlet valve
16. Flow restrictor
17. Sieve
1
5
15
16 17
1. Cold water tank lid
2. Cold water tank
3. Cold water level window
4. Main switch
5. Drip tray
6. Cup grille
7. Coffee outlet
8. Hot water outlet
1. Coffee pack empty indication
2. Cold water tank empty indication
3. Boiler temperature low indication
4. Hot water button ( in dispenser up to the 3 series)
5. Coffee (cup) button
6. Coffee (pot) button
7. Stop button

Installation -11 Version 1.36
02/2004
System Chilled liquid concentrated coffee brewing
Capacity 1.25 litres / approx 42.3 fl oz
Average number of cups (125 ml / 4 oz) at various ratios (± 10%)
Pack size 90 mm/3,5” (H) x 90 mm/3.5” (W) x 230 mm/9” (D)
Machine size 560 mm/22” (H) x 325 mm/12,8” (W) x 360 mm/14.2” (D)
Weight 12 Kg (max. 19.0 Kg)
Noise level max. 40 dB(A) at 1 metre/3.3 ft (stand-by mode)
Power supply 85~240 V AC 50/60 Hz (Switch mode power supply)
Power consumption Europe: max. 2100 W
Japan: max. 1280 W
USA: max. 1480 W
Environment Temperature between 1 °C and 32 °C / 34~90°F
Humidity up to 80 % RH
Cleaning time (user) 15 minutes per day
Machine lifetime 7 years
Cooling System Thermo-electrical (Peltier element with fan)
Capacity 1,25 litres/42,3 BIB (bag-in-box)
Temperature 3~5 °C/37.4~41°F
Boiler System Heating element (2100 W)
Capacity 1,8 litres/60,8 fl oz
Temperature Adjustable between 83~96 °C / 181~205°F
Cold water supply Water-container with a capacity of 3 litres/101.4 fl oz or
a fixed water connection. (see also chapter 5A)
Dosing B2 dosing coil
Accessories Coffee pot (940 ml/31.8 fl oz)
User operation
Outlets Coffee and hot water
Coffee Cup volume 20-999 cc / 0.6-33 oz
Time 8-10 sec. (125 ml / 4 oz)
Pot volume 20-999 ml / 0.6-33 oz (factory setting = 900 ml/30.4 fl oz)
Brewing Time 60 sec.
Waiting time 230V : 120 sec. between two pots
120V : 188 sec. between two pots
110V : 228 sec. between two pots
2.5 Specifications
Ratio No. of cups
1:5 60
1:6 70
1:7 80
1:8 90
1:9 100
1:10 110
1:11 120
1:12 130
1:13 140
1:14 150
1:15 160
Ratio No. of cups
1:16 170
1:17 180
1:18 190
1:19 200
1:20 210
1:21 220
1:22 230
1:23 240
1:24 250
1:25 260
1:26 270
Ratio No. of cups
1:27 280
1:28 290
1:29 300
1:30 310
1:31 320
1:32 330
1:33 340
1:34 350
1:35 360
1:36 370
1:37 380
1:38 390
Ratio No. of cups
1:39 400
1:40 410
1:41 420
1:42 430
1:43 440
1:44 450
1:45 460
1:46 470
1:47 480
1:48 490
1:49 500
1:50 510

Version 1.36
02/2004