Marco Marco 1000680 User manual

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 1of 13
Marco Beverage Systems Ltd.
INSTRUCTIONS FOR MODEL
Revision 9
th
Mar 2010
Uber Boiler
P/N: 1000680 Uber Boiler 6L 2.8kW
P/N: 1000681 Uber Boiler 2L 2.8kW
Water pressure :5 - 50 psi (min.-max.)35 - 345 kPa (min.-max.)
MARCO is an ISO9001:2000
Registered Company.
Marco Beverage Systems Limited.
63d Heather Road,
Sandyford Industrial Estate,
Dublin 18.
Marco Beverage Systems Limited.
Shire House, Strixton Manor,
Strixton, Wellingborough, Northants,
NN29 7PA
Ireland Tel: [phone]
Ireland Fax: [phone]
email: [email protected]
www.marco.ie
UK Tel: [phone]
UK Fax: [phone]
email: [email protected]
www.marco-bev.co.uk

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 2of 13
UNIT INSTALLATION INFORMATION
SAFETY:
•Risk of scalding. Beware of accidentally operating the water drawoff dial
or push buttons especially when cleaning. If the dial is left in the ON
position (shown later) then pressing boost will cause water to flow
immediately from the font.
•This appliance must be earthed. If the plug supplied is not used then
ensure that the green/yellow cable is connected to a suitable earth.
•Risk of flooding –inlet hose. The hose supplied with this unit is non-toxic
food quality tested to 190psi. However, a hose is not a permanent
connection. It is, therefore, advisable to switch off boiler and close the
stopcock valve when boiler is not in use, e.g. overnight, weekends etc.
•Risk of flooding –overflow hose. Water spilling in the scale platform area
will run down a waste tube which should be plumbed –this is not intended
to be used as a dedicated drain facility. If a waste bucket is used it risks
overfilling.
•The utmost care has been taken in the manufacture and testing of this
unit. Failure to install, maintain and / or operate this boiler according to the
manufacturer’s instructions may result in conditions that can cause injury
or damage to property. If in any doubt about the serviceability of the boiler
always contact the manufacturer or your own supplier for advice.
•Children should be supervised to ensure that they do not play with the
appliance
•In the event any wires are damaged, such wires can only be replaced by
experts or professional afterservice staff from the manufacturer,
afterservice department or similiar function departments.
INSTALLATION DETAILS:
Electrical installation:
•Electrical specification: 2.8kW-230V-50Hz
•A 13A plug is factory fitted. A suitable 13A outlet is all that is required.
Plumbing installation procedure:
•Mains water pressure required (limits): 5-50psi (35-345kPa)
•Fit a stop Valve on a cold water line and attach a 3/4" BSP male fitting,
•(e.g. 3/4" x 1/2" 311 or washing machine type stop valve).
•Connect straight tailpiece of the hose to the stop valve fitting. Make sure that
the pre-attached sealing washer is fitted.
•Turn on the water to flush any impurities, dust etc from the inlet hose and
water pipe. Allow several gallons through.

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 3of 13
•Connect right-angled tailpiece of the hose to the inlet valve of the boiler (again
3/4" BSP). Make sure the sealing washer is fitted here also.
•Turn on water and check for leaks.
CLEANING:
The exterior of these machines may be cleaned with a damp cloth and a light
detergent. Do not use abrasive cloths or creams, as this will spoil the finish of the
machine. Do not use a water jet or spray.
NB: Beware of accidentally operating the Font Dial or buttons when cleaning the
front of the machine.
LIMESCALE:
In common with all water boiler manufacturers, service calls resulting from limescale
are not covered by warranty. Fitting a scale reducer is recommended, especially in
hard water areas. This can reduce the build-up of scale but may not stop it
altogether. The frequency that descaling is required depends on the local water
supply; hard water areas need more attention. Descaling of the machine should
ideally be carried out by qualified service personnel.
Descale agents/solution should be added to the Tank via the large tube as in photo.
Follow in the descale agent instuctions.
Descale Tube at
front of Unit
Location of On/Off Switch
–
under the unit

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 4of 13
COUNTER CUTOUT:
•NEVER lift or lower the unit by holding the font!–use the upper wide tile or lift
from the base.
•The unit requires a counter thick enough to support the weight of the machine
when full, when full it could be up to 30kg in total.
•Never overload the scale platform with a force greater than 9kg.
•Ensure the flow control dial is in the OFF position as shown below.
•Check the dimensions shown for the counter cutout and the upper tile, leave
adequate clearance on your counter top and check the space below the
counter/cabinet to ensure there is enough room.
•Cut out the counter top to be 410x195mm, this dimension includes
clearance/tolerance space for the lower part of the machine (the actual
machine is approx 405x190mm). The full dimensions are shown on the
following page.
•Hold the machine by the tile and slowly lower it down into the cutout, it is
advisable to wear thick work gloves. A second person may be needed who
could hold the machine at the bottom. Be careful not to trap fingers under the
tile as it is lowered.
•The weight of the machine when filled should be enough to ensure it is not
moving. If further fixing is required it silicone can be used to stick the tile to the
counter –but it is advisable to leave the machine free to be taken out for
servicing purposes.
Off
On
The Font Dial operates anticlockwise
to begin the flow of water.

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 5of 13

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 6of 13
Principle of Operation of the Uber Boiler
•The Uber Boiler is designed to be a highly accurate hot water delivery system.
This temperature accuracy is achieved by several features;
oIn stand-by the water is maintained at a set temperature [ Prime Mode ]
this is controlled via a thermistor in the tank,
oin the Boost Mode the hot water is circulated through the FONT (to
reduce any temperature loss)
a second thermisor located in the FONT is now used to control
the temperature of the water and therefore ensure the accuracy
of the delivered water
a specialised software algorithm is used to control the
temperature within +/- 0.2ºC,
Simplified operation :
1. The unit is preset to a Prime Temperature at the factory (this may be
changed by the user). This is the stand-by mode and the temperature
is displayed on the display panel as Tank Temp.
2. The user presses the Boost button and holds this button down until the
desired set temperature is displayed on the display panel.
3. The Uber Boiler will now ramp the tank temperature from the Prime
setting up to the Set Temp while recirculating the water through the
Font.
4. When the set temperature is reached the user will rotate the Font Dial
counterclockwise to start the flow of water.
5. To select another set temperature the user should press the Prime
button – return the unit to the Prime Mode – and repeat step 2 to the
new temperature.
FIRST OPERATION :
•Check that all installation procedures have been carried out.
•Ensure water valve is on.
•Plug boiler into 13A socket and press power switch on – located under the
bottom of the Tank unit.
•See Photo 1 for location and name of each feature.
•The boiler unit will then take in water to the high level probe and then
commence heating – this is known as a continuous fill cycle
•The display will show : PRIME FILL the TEMP : will show the temperature of
the water in the tank.

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 7of 13
•Once the water level in the tank has reached the high level probe (full) the
heater will operate and it will take approximately 20-25 minutes to reach the
PRIME temperature. On the display : PRIME HEAT
•Once the PRIME temperature has been reached the display will indicate :
PRIME READY
•The boiler is now ready for use
•Use of the Time and Weigh Features:
oTime : 00:00 – when the Timer Button is pressed the display will
indicate time elapsed in minutes : seconds. This can be used to
indicate the brewing time. Pressing the button once quickly will pause
the current time which can be restarted again. Pressing the button for
more than 2 seconds resets the Timer display to zero.
oWeight : 0000 – this is in grams. Pressing the Weigh button will reset
the weighing scale. The brewing vessel can be placed on the scale/drip
tray and the display will show its weight. Pressing the Weight button
again will “zero” (tare) the scale so that when the coffee grind is added
to the basket, its weight can be displayed. This is to help control the
Coffee / Water ratio. 1ml of water weights approx 1gram.
o9kg is the max allowable weight on the scales. DO NOT OVERLOAD
Photo 1
Weighing scale /
platform
Prime
Timer
Weight Boost
Display

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 8of 13
UNDERSTANDING THE DISPLAY AND CONTROLS:
The Display screen contains 4 Lines of information
1. First line on the display shows status message:
Status Description
PRIME FILL Tank is filling, not heating until reaches the top level probe.
Boost button disabled.
PRIME HEAT Tank is heating, not filling until temperature in the tank reaches
“Prime temp”. Boost button disabled.
PRIME READY
Tank is heated up to the “Prime temp”. Occasionally it will refill (if
water evaporates) and reheat once the temperature falls 0.5°C
below “Prime temp”. Boost button is operational and puts machine
into BOOST mode.
BOOST MANUAL BOOST mode. Water inlet disabled. Heater off. (BOOST button released).
Press PRIME button to go back to PRIME mode.
BOOSTING
MANUAL BOOST mode. Water inlet disabled.
Heater on. (BOOST button pressed). If any of the temperatures
(font or tank probe) will go above “Max temp” the heater will go off
and screen will show BOOST even if the BOOST button is pressed.
Press PRIME button to go back to PRIME mode.
SET TEMP: xx.x °C
AUTO BOOST mode. Water inlet disabled.
Shows the target temperature set by pressing and holding BOOST
button. Machine heats up to the set temperature and maintains it
within ±0.2 °C.
Press PRIME button to go back to PRIME mode.
Communication
error!
Display board lost communication with boiler PCB (can not receive
serial data about temperature and probes). All actions cancelled.
Whenever communication is restored, machine will go back to
PRIME FILL mode.
Low level probe err!
Top water level probe covered while low level not. Check low level
probe for scale. Boost button disabled.
Tank thermistor err!
Tank thermistor disconnected or short circuited. Boost button
disabled.
Font thermistor err! Font thermistor disconnected or short circuited. Boost button
disabled.

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 9of 13
2. The second line shows the live readout of:
•Tank temperature in PRIME mode,
•Font temperature in BOOST mode.
3. Third line shows the timer
•Clicking TIMER button turns on and off timer clock.
•Pressing it for longer than 2 seconds resets it and turns it off.
4. Fourth line shows measured weight, scaled in grams.
•Numbers above 9999 can NOT be displayed – “----“ will be shown instead.
•Negative numbers will be shown with minus sign (down to -9999).
•Pressing WEIGHT button will reset scale to zero.
•Please note that the max weight for the load cell is 4kg and any loads higher
than 9kg may destroy it.
•
NOTE: Because the boiler is electronically controlled no priming is necessary.
The element cannot switch on until a safe level of water is reached.
WARNING: ALWAYS ENSURE THE DIAL IS SET TO OFF BEFORE PRESSING
BOOST OR HOT WATER WILL BE FLOWING IMMEDIATELY.
Off
On
The Font Dial operates anticlockwise
to begin the flow of water.

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 10 of 13
MODES OF OPERATION
The uber Boiler has 2 modes of operation:
1 PRIME Mode
2 BOOST Mode, this may be operated in
•Manual Boost or
•Auto Boost mode.
PRIME MODE
After turning on or pressing PRIME button the machine goes into Prime Mode.
This is a stand-by mode when the water is prepared for final dispense.
The tank will fill to the top level probe (PRIME FILL) and heat up (PRIME HEAT) to
the preset temperature (Prime temp in calibration). Once the temperature gets above
(Prime temp - 1°C) the display will show PRIME READY message and the BOOST
button will be enabled.
Occasionally when the water evaporates the machine will refill and show PRIME
FILL message for few seconds before going back to PRIME READY again.
Prime Mode logic is based on thermostatic principal – the water accuracy is around
±2°C from the set point.
Prime Mode
status Description BOOST
button Pump
PRIME FILL Tank fills to the top probe; heater off. disabled
OFF
PRIME HEAT Tank heats up to the preset Prime temp disabled
OFF
PRIME READY Tank temperature above (Prime temp - 1°C) .
Once the temperature falls below (Prime temp –
3°C) the machine will go back to PRIME HEAT enabled
OFF
BOOST MODE
The UBER Boiler with 1.5 Rev Programme may be operated in one of two Boost
Modes.
In the Manual Boost mode the user controls the heating process by holding
the Boost button until the desired temperature is achieved.
In the Auto Boost Mode the user sets the desired temperature and releases
the Boost Button – the controller will manage the heating cycle to achieve the
desired temperature.

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 11 of 13
Manual Boost Mode
In Manual Boost Mode the heater is controlled manually by BOOST button. If the
temperature read by any of the sensors (tank or font) is higher than the Max temp
the heater will go off even if the BOOST button is pressed.
This mode is turned on by setting Delta value to 0.0 in Calibration Mode.
Boost Mode
status Heater Pump
BOOST Heater off ON
BOOSTING Heater on ON
Auto Boost Mode
In Auto Boost Mode user sets the desired temperature. It is done by pressing (and
holding) the BOOST button to increase SET TEMP (shown on the screen) in 0.1°C
steps. The set-up temperature range is between Prime temp and Max temp.
After setting-up the machine will start to heat to the desired temperature and will
maintain it within ±0.2°C. The SET TEMP may be incr eased at any time by pressing
the BOOST button. Pressing PRIME button will make the machine go back to Prime
Mode and reset the SET TEMP back to Prime temp.
The Auto Boost Mode is based on Advanced Proportional Logic (APL) control
algorithm that will perform heating in few steps measuring errors each time to keep
the temperature overshoots small.
Über Calibration (software ver 1.5)
The following information is for Calibration purposes and should not be required for
normal use conditions.
To enter calibration mode press all four buttons on the front tile at the same time.
Buttons on the left hand side change calibration option (up/down): See options below
1. Tank Temp Offset
2. Font Temp Offset
3. Prime Temp
4. Max Temp
5. Delta value
6. Dead Time
7. Boost Timeout
8. Scale zero & 1kg
9. Save & exit
Buttons on right hand side adjust the calibrated value (up/down, press longer to
repeat).

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 12 of 13
Calibration Options their Description and Default values.
Screen view
Options 1 - 9 Description Default value
Sets offset value for tank temperature sensor.
The offset is the difference between absolute
temperature and a measured one.
It is factory set using calibrated instruments.
TEMP shows live readout from tank sensor with the
applied offset.
0.0
Sets offset value for font temperature sensor.
The offset is the difference between absolute
temperature and a measured one.
It is factory set using calibrated instruments.
TEMP shows live readout from font sensor with the
applied offset.
0.0
Sets temperature at which the element clicks off in
prime mode. The turning-on temperature is 0.5
degree below this point.
(89.0
for 2L)
(90.0
for 6L)
Sets maximum temperature at which the element
can be switched on. Both sensors (tank and font)
are monitored, if any reading is above set value, the
element goes off. 97.5
Sets heating delta factor. This number tells the
software how many energized seconds it will take to
heat up the tank by one degree. This number is
proportional to the size of the tank and inversely
proportional to the power of the element. Setting
value too high will make the machine overshoot too
much; setting too low will make the process of
reaching the set temperature slower.
Setting value to 0 enables MANUAL mode (see
MANUAL BOOST MODE section).
(8.0
for 2L)
(13.0
for 6L)
Sets dead time (measured in seconds from the
beginning of every heating cycle in BOOST mode)
when software waits for the tank sensor to record
temperature change. Value depends on element
time constant and placement of the thermistor.
Setting the value too high will make temperature
swing too much in BOOST mode; setting too low
will make machine overshoot too much.
Not valid in MANUAL mode (can have any value).
00:12
(for
both 2L
&6L,)

Instruction Booklet 1000680 Uber Boiler 6L 2 8kW 1000681 Uber Boiler 2L 2 8kW 18-08-06 (2).doc Page 13 of 13
Sets BOOST mode time-out. Timer starts at the
beginning of the BOOST mode. Machine goes back
to PRIME mode after that time to avoid unit being
left in Boost Mode for too long.
06:00
Calibrates weighing scale. 1kg weight is needed.
Do NOT press any of the right hand side buttons
if you don’t have any reference weight! TIMER
button sets scale to zero; BOOST button sets new
value for 1kg.
To recalibrate the scale:
-empty the weighing platform,
-press TIMER button (reset scale to 0),
-place 1kg calibration weight,
-press BOOST button (set new value for 1kg)
WEIGHT shows live readout of the weight.
-
Press TIME button to accept all the settings – they
will be stored in the non-volatile memory. To cancel
and come back to the previous settings – turn the
machine off and on again.
-