Borg & Overstrom U1, S2 Install & Operation Manual

u1 40L - 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 & 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

29 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 and sparkling at
<10°C.

DISPENSE Swan Neck Faucet with

ergonomically designed and situated
light touch sensitive controls.

MAX RUNNING POWER
CONSUMPTION

570 watt (during recovery), Rated
input 277 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

The u1 epitomises cutting-edge design
and innovation with its contoured tap
and compact under-counter unit. This is

our most discreet range and will t into

any environment seamlessly.
The under-counter dispenser is a dry
block cooler carbonator designed

to provide ambient still, chilled and
carbonated water. All the materials and
components are tested during the entire
production process in order to satisfy all
expectations.

Introduction

Install & Operation ManualBorg & Overström GB

3

Component/Feature Overview

Contents:

1 no Electronic Swan Neck Tap
1 no 2/3-Button Membrane Control Panel
1 no 1.0m x 6mm Insulated Water Pipe
1 no Connector Box
1 no 4mm Self Adhesive Clip
1 no Fixings Set

Please Note:
Mains Installation Kit & Filters are supplied as extra items according to individual ordering requirement.

U1 Tap - Major Components

Swan Neck

Threaded Stem & Back Nut

Water Pipe

Electrical Connection

Main Body

Faucet

Membrane Control Panel

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Install & Operation Manual

Major Components

Contents:

1 no Undercounter Unit
1 no 2.0m Power Cord Set
1 no 1.0m Faucet Connection Harness
1 no Co2 Regulator with Gauge & Connection
tube (Sparkling option only)
1 no Stainless Steel Drip Tray (c/w with Drain
Outlet Cap)
1 no Ventilation Ducting Kit
1 no Ventilation Grille

Faucet Connection Harness

CO2 Inlet

Water Inlet

Top Panel

Power Connection

Unit Carry Handle

Side Panel

Front Panel

Water Outlet

Eliwell Control Panel

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

suitable services connections. Allow enough space to t the

ventilation ducting system.

Service Requirements

Water: Mains potable water – internally regulated to 1.3bar. Min
mains pressure 1.3bar.

Electricity: 13A supply – Earth Leakage Protected.

2

33 - 35mm

3

187mm

4

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
swan neck faucet. A 33-35mm
(max) hole is required.

When positioning to drain over
an existing sink bowl, allow for
the reach of the swan neck or
otherwise the position of any
optional drip tray.

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Install & Operation Manual

400mm

Also allow for the height of
the swan neck 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 and washer
from the faucet and carefully
feed the connecting pipe tail
and ribbon cable through the
hole formed in the work surface.
Ensure the sealing O ring is pre-

tted in the base of the faucet.

You may want to apply a thin
bead of silicone sealant also.

With the faucet control panel in

the right position, carefully ret

the back washer and nut. Take
care not to over-tighten.

5

9

8

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

the back nut to the faucet stem.

6

7

10

78mm

70mm

Install the ventilation system
using the instructions/templates
provided.

11 12

Fit optional Drip Tray at this
stage (if selected).

Once the ventilation system is
installed, position the unit on the
ducting as instructed and follow
the connection steps on page 9.

13

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Install & Operation Manual

Tap Dimensions

135mm

414mm

188mm

42mm

260mm

33.3mm

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Install & Operation Manual

Driptray Dimensions

250mm/ 9¹³/16”

12.7mm/ ½” Waste Spigot

110mm/ 4 ¹¹/32”

220mm/ 8 ²¹/32”

12.7mm/ ½”
Waste Spigot

180mm/

7 ³/32”

150mm

/

5 ²9/32”

75mm/
2 ¹5/16”

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Install & Operation Manual

Ventilation System Installation

When Borg & Overström u1 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

(To align with vent

in bottom of unit)

Kickboard Panel

1

Bottom Panel

Rear Bottom Cutout (To

align with ducting at rear

of unit)

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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

Air Flow

Air Flow

2

3

4

Align duct with

rear cut out

Rear Cut

Out

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Install & Operation Manual

Undercounter Installation & Water Connection

1

2

7

8

9

10

11

Locate the machine in a
suitable enclosure, ensuring
that the supplied ventilation kit
can be installed.

Connect the u1 tap to the
water outlet.

Connect the faucet connection
harness to the tap control
panel membrane.

Connect the CO2 supply
from gas regulator, ensuring
the pressure is set to max 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.

3

6

5

10

mins

58 PSI

20

secs

Install within connection box
as supplied.

4

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Install & Operation Manual

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

Faucet Connection

Harness

Water Pipe

Tap

Co2 Pipe

Co2 Bottle

Tap Control Panel

Membrane

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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

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.

1

2

3 4

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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

Ambient Water Button

Cold Water Button

Ambient Water Indicator

Functions & Controls

Sparkling Water Button

Sparkling Water Indicator

Cold Water Indicator

Tap Control Panel

8888

Control Button

Eliwell Control Panel

Control Button

Function Button

Setting Button

Digital Display

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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

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:

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.

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Install & Operation Manual

CO2 Bottle Installation

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 - push the sparkling button for a
few seconds until CO2 is coming through.
Check and adjust the CO2 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

4

5

6

7

1 3

10

mins

Install & Operation ManualBorg & Overström GB

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.

1

3

2

4 5

7

Dispense water using the cold
button until the water appears pink.

Briey press the ambient button

too. Repeat with sparkling button
if present.

Briey press cold/ambient dispense

button 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 button with clean
water until the dispense water

runs clear. Repeat briey with the

ambient and sparkling buttons.

Fit new lter. Turn on incoming

water supply and reconnect the
power.

10

12

11

13

Pre-ush the new lter to waste

using the ambient button 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 faucet and the push
button controls. 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

1

Turn off the water supply.

3

2

Press and hold the Sparkling
water dispense button 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 button and take care to
avoid releasing excess amounts
of CO2 gas as this may
damage the tank.

Install & Operation ManualBorg & Overström GB

21

Problem/Report Possible Cause Suggested Action

No Water Dispensing Water Pressure Regulator Check water tank ow through the

regulator. Replace if necessary.

No Sparkling Water No CO2 pressure, check by operating

pressure relief valve on carbonator tank.

Check CO2 bottle, regulator and non­return valve. Supply pressure should be 58
psi (4bar), adjust or replace as necessary.

Carbonator Tank Not Filling Check carbonator probe for possible short

circuit to ground.
Check for pump timeout, cycle power off

& on then purge carbonator.
Check supply to water pump (230V AC),

if voltage present & pump inoperative ­replace pump.

If voltage not present & pump is not
timed out, check control board fuses. If
necessary replace control board.

Poor Quality Carbonation Incorrect CO2 Pressure Check CO2 bottle, regulator and non-

return valve. Supply pressure should be 58
psi (4bar), adjust or replace as necessary.

Air in Carbonator Tank Isolate the power supply and operate the

sparkling water tap until gas is expelled.
Allow gas to expel for 5 seconds. Switch
on power supply and allow the tank to

rell.

Residue in Carbonator Tank After prolonged use, a surface lm can

develop within the carbonator tank. Refer
to cleaning and sanitising instructions.

Carbonator Tank is Overlled If pump runs continuously, check

connections to tank level probe, if problem
persists replace the PCB.

Advanced Troubleshooting

Fault Diagnostics

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22

Install & Operation Manual

Fault Diagnostics (Continued)

Problem/Report Possible Cause Suggested Action

Warm Drinks Insufcient cooling air ow through the

fridge.

Check that the condenser is not blocked.
Check supply to cooling fans (230V AC).
If supply present replace fans.
If supply not present move on to the

compressor. The supply to the fans and the
compressor are linked.

Compressor not running Check supply to compressor (230V AC).

If supply not present check the Eliwell
fridge controller is operating.

Check for system over heat. Allow the unit

to cool and check for airow obstructions.

Once the unit has cooled the fridge system
will restart. If the problem persists contact
technical support.

If the Eliwell controller is operating check
the operating parameters are correctly set
and inspect the probes. Replace probes
as necessary.

Eliwell fridge controller not operating. Check supply to the controller. If present

replace the controller.
If supply is not present check the PCB.

PCB not operating. Check the fuses on the board and the fuse

in the mains plug. If fuses are ok replace
the PCB.

Fridge failure If compressor & fan are running and there

is no cooling contact technical support.

Install & Operation ManualBorg & Overström GB

23

603002

Exploded Diagrams & Parts List

Tap Exploded Diagram

607131

604001

601254

601254

603001

603002

607132

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Install & Operation Manual

Chilled, Ambient & Sparkling Exploded Diagram

637325

637408

637426

637106

637107

637326

462374

637324

637425

462668

462313

635512

632031

462359

462874

462362

462371

172180

462667

632032

462376

462384

462368

462325

462318

462364

462369

637417

462013

462014

462012

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Install & Operation Manual

Borg & Overstrom

Part No

Description

601254 u1 Tap Assembly complete with O-ring, Nut and washer set

603001 u1 tap replacement O-ring

603002 u1 tap O-ring, Nut and washer set

604001 u1 Swan Neck Tap Aerator Set

607131 u1 Tap Chilled & Ambient Control Panel Membrane

607132 u1 tap Chilled, Ambient & Sparkling Control Panel Membrane

Tap Parts List

Parts List

Borg & Overstrom

Part No

Description

172180 Swan Neck Faucet Connection Harness

462012 3/8 LLDPE BU TUBE

462013 1/4 LLDPE BU TUBE

462014 5/16 LLDPE BU TUBE

462313 Straight Adaptor, 3/8x1/4 BSP

462318 Equal Tee, 1/4

462325 Bulkhead Connector, 1/4

462359 Equal Tee, 3/8

462362 Equal Elbow, 3/8

462364 Stem Adaptor, 3/8ODx1/4BSP

462368 Stem Elbow, 1/4-1/4

462369 Stem Elbow, 3/8-1/4

462371 Stem Elbow, 3/8-3/8

462374 Reducer, 3/8-5/16

462376 Equal Elbow, 5/16

462384 Stem Elbow, 5/16-5/16

462667 Single Check Valve, 5/16

462668 Single Check Valve, 1/4

462874 Reducing Straight Connector, 5/16-1/4

632031 DRY047 Front Wrap

632032 DRY045 Lid

633512 Can Wrap Insulation

637106 Solenoid Dispense Control Board

637107 EXL170 CLIP III Control Board

637324 3 Way Dispense Solenoid

637325 Flow Control

637326 Eliwell Control

637408 Axial Fan 240V

637417 12V Power Supply

637425 Aquatec Pump IPC1400 MOTOR ASSEMBLY

637426 Bit Regulator 1.3bar TYP 88259R6

Install & Operation ManualBorg & Overström GB

26

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 and sparkling at <10°C.

DISPENSE Swan Neck Faucet with ergonomically designed and

situated light touch sensitive controls.

MAX RUNNING POWER CONSUMPTION 570 watt (during recovery)

RATED INPUT 277 watt

QUANTITY OF REFRIGERATION GAS R134a 130g

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

RATED CURRENT 2A

FUSE RATING 5A

INLET WATER PRESSURE 22 PSI (1.5Bar) - Internally regulated to 22 PSI (1.5Bar).

CO2 PRESSURE 58 PSI (4 Bar) Maximum

COMPRESSOR Tecumseh THB4422Y

CLIMATIC CLASS N

Technical Information

Specication

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Install & Operation Manual

Circuit Diagram

1

2

3

4

5

6

7

8

9

10

11

12

13

4

3

2

1

9

8

7

6

5

4

3

2

1

5A

5A

230 AC

INLET

M

M

BROWN
BLUE
WHITE
YELLOW
GREEN

PURPLE

BLACK

RED

KEY

FAN

COMPRESSOR

TRANSFORMER

SWITCH

SOLENOID

FUSE

PUMP

BRIDGE DIODE

TEMPERATURE SWITC

H

CARBONATOR CAN

M

TEMPERATURE PROBE

CONDENSER FAN

12Vdc POWER SUPPLY

RIBBON CABLE

CONNECTION TO TAP

AMBIENT
DISPENSE
SOLENOID

CHILLED
DISPENSE
SOLENOID

SPARKLING
DISPENSE
SOLENOID

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Install & Operation Manual

Water Pathway Diagram

CARBONATION

PUMP

CARBONATION TANK

TAP WATER OUT

AMBIENT

CHILLED

SPARKLING

MIXED LINE

WATER IN

WATER COIL

NON

RETURN

VALVE

NON

RETURN

VALVE

CARBONATION

FLOW CONTROL

WATER PRESSURE

REGULATOR

CO2 IN

NON

RETURN

VALVE

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Install & Operation Manual

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Install & Operation Manual

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Install & Operation Manual

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Install & Operation Manual

© Copyright Borg & Overström.
This manual is printed by Borg & Overström and shall not be reproduced or copied in anyway.

Document Reference: u1.40.I&OM.v28022018