Borg & Overstrom U2 User manual

U2/S2 - Install & Operation Manual
GB
Dispense options
Telephone
[phone]
Email
[e-mail]
borgandoverstrom.com
Synergy House
Fakenham Road
Morton On The Hill
NR9 5SP
Chilled
Ambient
Chilled & Ambient
Chilled & Sparkling
Chilled, Ambient & Sparkling
Contents 2 Model Overview
3 Component/Feature Overview
5 Installation
15 Operation
18 Maintenance & Cleaning
21 Advanced Troubleshooting
23 Exploded Diagrams & Parts List
26 Technical Information
31 Declarations of Conformity

Install & Operation Manual
Borg & Overström GB2
Model Overview
COOLING SYSTEM Stainless steel direct chill coil
encased in a solid-block system
for instant response cool down
action. Ultra efciency compression
system with capillary control.
Environmentally friendly R134a
refrigerant.
COLD TEMPERATURE 2°C - 10°C.
OUTPUT PER HOUR 40 litres cold at <10°C.
40 litres sparkling at <10°C.
DISPENSE Multi-Neck Faucet with
ergonomically designed lever
controls for each tap.
MAX RUNNING POWER
CONSUMPTION - CHILLED,
AMBIENT & SPARKLING
570 watt (during recovery),
Rated input 323 watt.
MAX RUNNING POWER
CONSUMPTION - CHILLED
& AMBIENT
570 watt (during recovery),
Rated input 300 watt.
POWER SUPPLY 230V AC (50 Hz)
WATER CONNECTION Mains in - 1/4” Push Fit/ Faucet -
1/4” Push Fit
CO2 CONNECTION 1/4” Push Fit
DIMENSIONS (w x d x h) 330 x 370 x 362mm
WEIGHT 26Kg
CUPBOARD VENTILATION Required
Introduction
The u2 is a robust, simple to operate
and maintain multi-headed tap with an
aesthetically striking design.
The under-counter dispenser is a
Dry Chill™ cooler designed to
provide ambient still, chilled and/or
carbonated water. All the materials and
components are tested during the entire
production process in order to satisfy all
expectations.

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3
Component/Feature Overview
Contents:
1 no Tap Tower
2/3 no Tap Spacers
2/3 no Tap Lever sets
1 no u2 Dispense Label Set
1 no u2 Tap Nut
1 no u2 Mounting Gasket
Please Note:
Mains Installation Kit & Filters are supplied as extra items according to individual ordering requirement.
Ambient water Pipe always Longest
U2 Tap - Major Components
Dispense
Lever
Threaded Stem
& Back Nut
Chilled Water Pipe
Main Body
Cold Water Tap
Ambient Water Tap
Sparkling Water Tap
Gasket
Ambient
Water Pipe
Sparkling Water Pipe

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Install & Operation Manual
S2 Manual - Major Components
Contents:
1 no Undercounter Unit
1 no 2.0m Power Cord Set
1 no Co2 Regulator with Gauge & Connection tube*
1 no Stainless Steel Drip Tray (c/w with Drain Outlet Cap)
1 no Ventilation Ducting Kit
1 no Ventilation Grille
3 no Outlet Supply Pipes
*Sparkling versions only.
CO2 Inlet*
Water Inlet
Top Panel
Chilled Water Outlet
Unit Carry Handle
Side Panel
Ambient Water Outlet
Eliwell Control Panel
Front Panel
Sparkling Water Outlet*
Power Connection

Install & Operation ManualBorg & Overström GB
5
Installation
Tap Installation
1
Identify a suitable location for the undercounter unit. It
should be positioned within 1.0m of the faucet, and
within 2.0m of a suitable services connections:
Service Requirements
Water: Mains potable water – 2.0bar recommended. Min 1.0bar
Electricity: 13A supply – Earth Leakage Protected.
234
When planning and providing
for the connection to the
services, always allow for
easily accessible service isolator
ttings and for the position of an
external water lter.
Identify a suitable position for
the tap. A 50mm (max) hole is
required for a three headed tap,
and a 35mm (max) hole for a
two headed tap.
When positioning to drain over
an existing sink bowl, allow for
the reach of the tap levers or
otherwise the position of any
optional drip tray. 168mm to
middle tap, 148mm to outside
taps.
50mm/35mm
148mm
168mm

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Install & Operation Manual
Once the ventilation system is
installed, position the unit on the
ducting as instructed and follow
the connection steps on page 9.
13
Also allow for the height
of the tap levers under any
overhanging cupboard/shelf.
Carefully form the needed hole,
using the correct type of cutter
for the work surface material.
Observe all local occupational
health and safety requirements.
Remove the back nut from
the tap and carefully feed the
connecting pipe tails through the
hole formed in the work surface.
Ensure the rubber gasket is
positioned correctly on the base
of the tap.
With the tap in position carefully
ret the nut. Take care not to
over-tighten.
5
98
Allow for the space needed
for forming the required hole.
Relate the selected position to
the underneath of the counter
and check for any obstructions.
Allow sufcient space for tting a
back nut to the faucet stem.
6
70mm
7
10
Fit optional Drip Tray at this
stage (if selected).
12
470mm
Install the ventilation system
using the instructions/templates
provided.
11

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Install & Operation Manual
Tap Dimensions
Footprint Dimensions
126.5mm
120mm
Three Head
Tap 108mm
103mm
Two Head
Tap
215mm 240mm
470mm
200mm
285mm
240mm
470mm
200mm
150mm
285mm

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Install & Operation Manual
Driptray Dimensions
400mm
A
250mm
430mm
220mm
56 mm 30 mm
1mm
Section A - A
12.7mm
Waste Spigot

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Install & Operation Manual
Ventilation System Installation
When Borg & Overström u2 undercounter
units are installed inside a cabinet or
housing, adequate ventilation is
recommended to ensure that they operate
satisfactorily.
During a cooling cycle it is normal for the
unit to produce heat, and the purpose of
ventilation is to provide a supply of air
that can absorb the generated heat which
would otherwise accumulate inside the
cabinet or housing, and reduce the cooling
performance of the unit. The amount of heat
generated by the cooling cycle depends
directly upon the amount of usage – the
higher the usage, the more heat produced.
To provide adequate ventilation we
recommend that air grilles/vents are tted
as supplied (or vent apertures formed) in
the cabinet to allow an airow as shown
below. Normally this should be enough for
all situations.
In conjunction with an inlet vent grille set into
the front of the plinth, it is recommended that
a ducting box and duct is installed in the
base of the cabinet. Another slot located in
the base is responsible for allowing airow
past the condenser positioned at the rear of
the dispenser. Instructions for installing the
ventilation system are as follows:
Using the supplied templates, cut the bottom and kickboard panel of the installation cabinet.
Kickboard Cutout
Bottom Cutout
Kickboard Panel
1
Bottom Panel
Rear Bottom Cutout

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Install & Operation Manual
Insert ducting box into its cut slot in the Bottom panel. Then insert the air ducting into the ducting box until it reaches its limits.
Then cut the air ducting so that it is ush with the kickboard.
Centrally locate the ventilation grille over the kick board cut out, then using self tapping screws, secure the kick plate.
The unit must be positioned accurately over the air ducts to ensure optimum airow.
Ducting Box
Air Ducting
2
3
4
Air Flow
Air Flow
Align duct with
rear cut out
Rear Cut
Out

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Install & Operation Manual
Undercounter Installation & Water Connection
*Sparkling versions only.
12
5678
9
Locate the machine in a
suitable enclosure, ensuring
that the supplied ventilation kit
can be installed.
Connect the u2 tap to
the Chilled, Ambient and
Sparkling* water outlets.
*Connect the CO2 supply
from gas regulator, ensuring
the pressure is set to 58 PSI
(4 bar), and turn on the supply.
Connect the chiller to the
water supply and open the
mains supply isolation valve.
Connect the unit to the
electrical supply and turn on.
After approximately 10
minutes, the compressor and
fan will stop as the chiller has
reached its normal operating
temperature.
*The carbonator should be
purged of air by activating the
sparkling water dispense for
approximately 20 seconds.
*Isolate the water supply
and activate the sparkling
water dispense. When the
water system has emptied,
allow gas to be expelled for
approximately 5 seconds.
Immediately after this 5
second period restore the
water supply and allow the
system to rell.
Dispense ambient, still and
sparkling water*, in turn,
to purge any air from the
system. The time to do this
may vary depending on the
length of pipe between the
unit and the tap.
4
3
10
mins
40 PSI
20
secs

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Install & Operation Manual
*Sparkling versions only.
The unit should be isolated from the electricity supply before removal of any covers.
Great care must be employed when working with high pressure carbon dioxide, and
in no cases should the maximum operating pressure of 58 PSI (4 bar) be exceeded.
Safety
Tap
Water Pipe
Co2 Bottle*
Co2 Pipe*

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Install & Operation Manual
1
Remove the 3 screws holding
the unit lid down and lift the
lid away
Locate the ow control adjuster,
this can be found on top of the
carbonator can, connected to
the central port of the can.
Loosen the lock nut, but do
not remove. Flow can then be adjusted
by turning the adjuster screw,
anti-clockwise to increase ow
and clockwise to restrict ow.
After each adjustment the ow
rate should be timed.
Sparkling Water Flow Rate - Sparkling Versions Only
NOTE: The soda water ow rate is set to 35ml/sec at a CO2 pressure of 58 PSI (4 bar). To
adjust the soda water ow rate follow these steps:
Once the correct ow rate is achieved reverse steps 1, 2 and 3.
C
2
C
3 4
C

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Install & Operation Manual
General Safety
• Always place the dispenser in its
vertical position, on a surface which
can capably support its weight.
• During use this machine must remain
in its upright position.
• Adequate ventilation must be
allowed for - we recommend using
the supplied ventilation ducting kit.
• Keep the machine away from
sunlight, heat and moisture.
• Power and water supply points must
be available near the dispenser,
and must meet the criteria specied
in the ‘Specication’ section of this
manual.
• The environment where this machine
is installed must be free of dust and
corrosive/explosive gases.

Install & Operation ManualBorg & Overström GB
15
Operation
Use the valves on the sides of the taps to increase or decrease ow rate. Lever in the upright position is fully closed.
Ambient
Water Tap
Functions & Controls
Sparkling Water Tap
Cold Water Tap
Flow Restrictor Lever
OPEN OPEN
CLOSED

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Install & Operation Manual
1. Switch on Mains power – the display will
ash several times, then the fridge system
will switch on and the display will give a
steady reading, this is the temperature of
the water bath sensor.
2. Press and release the ‘Set’ button – The
display will show ‘SET’.
3. Press ‘Set’ again and the display will show
a numeric value (e.g. 9°C).
4. Raise or lower this gure to the desired
setting using the up or down arrows on the
left of the control display window.
5. When the correct setting is shown in the
display window press ‘Set’ button the
display will now show SET.
6. Press FNC button to return to the probe
temperature reading.
Basic Settings
8888
8888
Adjusting the Set Point:
1. Press and hold the ‘Set’ button until CP
shows on the display – Release the button.
2. Press ‘Set again, DIF will show on the
display.
3. Press ‘Set’ again and the display will show
a numeric value, (e.g. 1°C, the default
setting.)
4. Raise or lower this gure to the desired
setting using the up or down arrows on the
left of the control display window.
5. When the adjustment has been made
press ‘Set’ again the display will show DIF.
6. If no further changes are required press
FNC again to exit.
Altering the Differential setting:
8888
8888
8888
NOTE: If no buttons are pressed for 15 seconds, the control will revert to temperature display mode,and any
changes to settings will be saved.
Controls
Power Connection Socket
Note: the undercounter unit
automatically powers up when the
power lead is connected.
8888
Control Button
Eliwell Control Panel
Control Button Function Button
Setting Button
Digital Display

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Install & Operation Manual
CO2 Bottle Installation - Sparkling Versions Only
Allow the machine to stand for 8 - 12
minutes for the initial chilling process to
complete.
Unpack CO2 Regulator and t elbow tting
to spigot outlet.
Attach the regulator to the disposable CO2
bottle, ensuring the small pressure relief
vent in the stem is facing away from you or
anyone else. Ensure the regulator is closed.
Hand tighten securely.
Stand the cylinder in a suitable place. It is necessary to prime the sparkling system
with CO2 - using the sparkling dispense
lever for a few seconds until CO2 is coming
through, check and adjust the C02 pressure
accordingly
Connect the assembled CO2 bottle and
regulator to the CO2 inlet using a ¼” pipe.
We recommend between 3.5 - 4 bar(58
PSI) (max). Do not exceed 4 bar pressure.
58 PSI
2
456
7
1 3
10
mins

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18
Maintenance & Cleaning
Sanitisation Guide
NOTE: All maintenance operations must be carried out with the dispenser switched off. This
operation must only be carried out by trained staff. Every 6 months a sanitisation procedure is
recommended as follows:
Turn off incoming mains water.
Connect to lter head.Add 25 ml of Bioguard Internal
Sanitisation uid to a clean and
empty service lter cartridge.
Turn on incoming water, allow
service cartridge/doser to ll.
132
4 5
7
Dispense water using the cold
dispense lever until the water
appears pink. Briey dispense
using the ambient lever too. Repeat
with sparkling dispense lever if
present.
Briey dispense cold/ambient
water to release internal water
pressure from the machine.
Remove the existing lter.
Use Bioguard Hand Gel and put
on protective gloves.
8
Leave the solution inside machine
for sanitisation to take effect
(minimum 5 minutes) while
thoroughly cleaning the machine
externally
9
6
PINK
5
mins

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Install & Operation Manual
For this we recommend the use
of Bioguard Foam Descaler &
Sanitiser Spray.
Turn off water and remove the
service lter. Retain service lter
for reuse.
When the external cleaning
(minimum 5 minutes) is
completed, ush the machine
using the cold dispense lever
with clean water until the
dispense water runs clear.
Repeat briey with the ambient
and sparkling levers if present.
Fit new lter. Turn on incoming
water supply and reconnect the
power.
10 1211
13
Pre-ush the new lter to waste
using the ambient dispense lever
until the water appears clear
and is free of air. Flush through a
small amount of water to check
all functions.
Pay particular attention to the
dispense faucets and the tap
levers. For this use Bioguard
External Sanitiser & Clear Spray
and Sanitising Wipes.
Attend to any cosmetic marks
with Bioguard Rejuvenator &
Protector as needed.
Remember to include the drip
tray. If a Waste Overow
System is tted, empty this
and ush through with a small
amount of sanitisation uid if
needed.
15
14
16 17
Please note that this sanitisation uid contains an
active caustic/alkaline agent.
Always use responsibly and with care remembering
that due to its alkaline nature unnecessary
concentrated/prolonged contact with any materials,
including metals, can cause damage. Always rinse
all contact surfaces after use with clean water.
Avoid skin contact and wear
protective gloves when
handling sanitisation uids.
In the event of any skin
contact, ush immediately
with clean, cold water.
5
mins
PINK
5
mins

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Install & Operation Manual
Emptying the CO2 Tank - Sparkling Versions Only
1
Turn off the water supply.
3
2
Pull and hold the Sparkling water
dispense lever until all the water
is expelled and only CO2 gas is
being released.
The tank is empty of sparking
water when only CO2 is being
released.
4
Ensure to release the Sparkling
water dispense lever and take
care to avoid releasing excess
amounts of CO2 gas as this
may damage the tank.