Borg & Overstrom E4 User manual

This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand
the hazards involved. Children shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without supervision.
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 0.4MPa (4 bar)
be exceeded.
The appliance is not suitable for installation in an area where a water jet could be used.
The appliance has to be placed in a horizontal position.
WARNING: Keep ventilation openings in the appliance enclosure or in the built-in structure clear of obstruction.
WARNING: When positioning the appliance, ensure the supply cord is not trapped or damaged.
WARNING: Do not locate multiple portable socket-outlets or portable power supplies at the rear of the appliance.
This appliance is intended to be used in household and similar applications such as:-
Staff kitchen areas in shops, offices and other working environments
Farm houses and by clients in hotels, motels and other residential type environments
Bed and breakfast type environments
Catering and similar non-retail applications
A-weighted emission sound pressure level is below 70 dB(A)
R290 is a refrigerant-grade propane used on a wide range of commercial refrigeration and air
conditioning units. A highly pure propane, it has a low environmental impact and nominal global
warming potential (GWP), meaning it possesses no qualities that can destroy the ozone layer. R290
also is the preferred hydrocarbon alternative of the Environmental Protection Agency (EPA),
substituting more harmful fluorocarbon refrigerants like R22, R134a, R404a and R502.
Units with R290 can only be maintained and repaired by authorized technicians who are
properly trained and certified.
Release date 01.07.2022
E4 Install & Operation
Manual
Safety
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R600a is a refrigerant-grade propane used on a wide range of commercial refrigeration and air
conditioning units. A highly pure propane, it has a low environmental impact and nominal global
warming potential (GWP), meaning it possesses no qualities that can destroy the ozone layer. R600a
also is the preferred hydrocarbon alternative of the Environmental Protection Agency (EPA),
substituting more harmful fluorocarbon refrigerants like R22, R134a, R404a and R502.
Units with R600a can only be maintained and repaired by authorized technicians who are
properly trained and certified.
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.
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
specified in the ‘Specification’ section of this manual.
The environment where this machine is installed must
be free of dust and corrosive/explosive gases.
Waste Electrical Products:

The WEEE symbol indicates that this item contains electronic components which must
be collected and disposed of separately.
Never dispose of electrical waste in general municipal waste. Collect and dispose of
such waste separately.
Make use of the return and collection systems available to you, or your local
recycling programme. Contact your local authority or place of purchase to find out
what schemes are available.
Electrical and electronic equipment contains hazardous substances which, when
disposed of incorrectly, may leak into the ground. This can contribute to soil and
water pollution which is hazardous to human health; and endangers wildlife.
It is essential that consumers look to re-use or recycle electrical or electronic waste
to avoid it going to landfill sites or incineration without treatment.

E4 - 230v
Specification

COOLING SYSTEM Stainless steel direct chill coil encased in a solid-block system for instant
response cool down action. Ultra efficiency compression system with
capillary control.
Environmentally friendly R290 refrigerant.
COLD TEMPERATURE 2°C - 11°C
CHILLED & SPARKLING CAPACITY 50L/h
HOT TEMPERATURE 92°C
HOT CAPACITY 15L/h
MAXIMUM RUNNING POWER
CONSUMPTION - CHILLED & AMBIENT
0.11kW - 230V
MAXIMUM RUNNING POWER
CONSUMPTION - CHILLED, SPARKLING &
AMBIENT
0.18kW - 230V
MAXIMUM RUNNING POWER
CONSUMPTION - CHILLED, AMBIENT &
HOT
1.45kW - 230V
MAXIMUM RUNNING POWER
CONSUMPTION - CHILLED, SPARKLING &
HOT
1.55kW - 230V
QUANTITY OF REFRIGERATION GAS R290a 33g
POWER SUPPLY 220V - 240V AC (50 Hz)
WATER CONNECTION Mains in - 8mm Push Fit
C02 CONNECTION 1/4” Push Fit.
DIMENSIONS (w x d x h) 320 x 451 x 420mm.
WEIGHT - CHILLED & AMBIENT 18Kg
WEIGHT - CHILLED, SPARKLING &
AMBIENT
22Kg
WEIGHT - CHILLED, AMBIENT & HOT 20Kg
WEIGHT - CHILLED, SPARKLING & HOT 23.5Kg
RATED CURRENT - CHILLED & AMBIENT 0.5A
RATED CURRENT - CHILLED, SPARKLING &
AMBIENT
0.8A
RATED CURRENT - CHILLED, AMBIENT &
HOT
6.4A

RATED CURRENT - CHILLED, SPARKLING &
HOT
6.7A
FUSE RATING 10A
MINIMUM TO MAXIMUM INLET WATER
PRESSURE
0.05MPa (0.5 bar) - 1.0 MPa (10 bar)
Internally regulated to 0.2 MPa (2 bar)
CO2 PRESSURE 0.4MPa (4 Bar) Maximum
MINIMUM TO MAXIMUM AMBIENT
ROOM OPERATING TEMPERATURE
5°C - 35°C
CLIMATIC CLASS N
E4 - 115v

COOLING SYSTEM Stainless steel direct chill coil encased in a solid-block system for instant
response cool down action. Ultra efficiency compression system with
capillary control.
Environmentally friendly R600a refrigerant.
COLD TEMPERATURE 37°F
CHILLED & SPARKLING CAPACITY 13.2 Gal/h
HOT TEMPERATURE 198°F
HOT CAPACITY 4 Gal/h
MAXIMUM RUNNING POWER
CONSUMPTION - CHILLED & AMBIENT
0.11kW - 110V
MAXIMUM RUNNING POWER
CONSUMPTION - CHILLED, SPARKLING &
AMBIENT
0.16kW - 110V
MAXIMUM RUNNING POWER
CONSUMPTION - CHILLED, AMBIENT &
HOT
0.82kW - 110V
MAXIMUM RUNNING POWER
CONSUMPTION - CHILLED, SPARKLING &
HOT
0.91kW - 110V
QUANTITY OF REFRIGERATION GAS R600a 33g
POWER SUPPLY 110V - 115V AC (50 Hz)
WATER CONNECTION Mains in - 8mm Push Fit
C02 CONNECTION 1/4” Push Fit.
DIMENSIONS (w x d x h) 12.6 x 15.7 x 16.3''
WEIGHT - CHILLED & AMBIENT 39.7lbs
WEIGHT - CHILLED, SPARKLING &
AMBIENT
48.5lbs
WEIGHT - CHILLED, AMBIENT & HOT 44.1lbs
WEIGHT - CHILLED, SPARKLING & HOT 51.8lbs
RATED CURRENT - CHILLED & AMBIENT 0.5A
RATED CURRENT - CHILLED, SPARKLING &
AMBIENT
1.4A
RATED CURRENT - CHILLED, AMBIENT &
HOT
7.4A

RATED CURRENT - CHILLED, SPARKLING &
HOT
8.3A
FUSE RATING 10A
MINIMUM TO MAXIMUM INLET WATER
PRESSURE
0.05MPa (0.5 bar) -
0.3 MPa (3 bar)
CO2 PRESSURE 0.4MPa (4 Bar) Maximum
MINIMUM TO MAXIMUM AMBIENT
ROOM OPERATING TEMPERATURE
41°F - 95°F
CLIMATIC CLASS N

Introduction
Hygienic and ergonomic, E4 flourishes in all environments – from boardroom to sports hall. Its compact size, large dispense
area for bottles, multiple water options and flexible configuration.
The E4 features a flush control panel with no intricate buttons to harbour germs and contaminants, the touch sensitive
console delivers instant high-quality chilled, ambient, hot and sparkling water.
Model Overview

Contents:
1 no E4 Unit
1 no 2.0m Power Cord Set
1 no Warranty Card
E4 - Major Components
Component/Feature Overview

1. Unit Lid, 2. Side Panel, 3. Carry Handle, 4. Control Panel, 5. Dispense Outlet, 6. Drip Tray, 7. Power Connection, 8.
On/Off Switch, 9. CO2 Inlet*, 10. Water Inlet, 11. Hot Tank Switch

Please Note:
Mains Installation Kit & Filters are supplied as extra items
according to individual ordering requirement.
*Sparkling versions only
Dimensions

Installation Requirements
Identify a suitable location for the E4 unit. It should be positioned within 2.0m of suitable services connections. Allow 15cm
of free space at the rear for ventilation.
The E4 unit must be installed in accordance with the relevant requirements of:
The appropriate building regulations by application of either The Building Regulations (England and Wales), The Building
Regulations (Scotland) or The Building Regulations (Northern Ireland). In territories other than those listed the local regulations
in force must be complied with.
The Water Supply (Water Fittings) Regulations (England, Wales and Northern Ireland) or The Water Byelaws in Scotland.
The unit must not be installed where it is liable to freeze. If the unit is thought to be frozen it must not be switched on. It
should be allowed to thaw and must then be thoroughly inspected to ensure it is undamaged.
Service Requirements
Water: Mains potable water – internally regulated to 0.2MPa (2 bar)
CO2: Food Grade CO2 to be supplied
Min mains pressure 0.05MPa (0.5 bar)
Electricity: 10A supply – Earth Leakage Protected
Installation

Tap Control Panel
1. Unlock Button (commissioning mode), 2. Chilled Dispense, 3. Sparkling Dispense, 4. Hot Dispense, 5. Warning
Symbol.
Note: CSH Version shown
Basic Functions
Operation

Dispensing cold water from unit:
Press and hold dispense icon and release to finish dispense
Dispensing hot water from unit:
Press the unlock icon and then press and hold the hot button to dispense.
Warning Symbol
‘Warning triangle’ symbol will illuminate and flash upon a fault. The number of flashes relates to a particular fault. See
troubleshoot chapter for more detail.
Connectivity
Bluetooth hands free app dispense
Bluetooth alarmed waste kit enabled
Foot switch operation enabled
E4 Installation & Water Connection
Connect to the water supply. Connect the CO2 supply from gas
regulator, ensuring the pressure is set to
max 58 PSI (4 bar), and turn on the
supply (See CO2 Installation section).
Connect the chiller to the electricity
supply and ensure unit is switched on.

Turn on the water supply. The carbonator should be purged of
air by activating the sparkling water
dispense for approximately 10
seconds.
The hot versions will have a label
covering the hot switch on the
backplate. Press the unlock icon then
hot dispense and wait until you see
water flowing from outlet.
When hot water is dispensing remove
the label from the hot switch at rear
and switch it to 'on'.
Allow the machine to stand for 8 - 12
minutes for the initial chilling process to
complete.
CO2 Bottle Installation - Sparkling Versions Only

Unpack CO2 Regulator and fit elbow
fitting 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.
Connect the assembled CO2 bottle
and regulator to the CO2 inlet using a
¼” pipe.
Stand the cylinder in a suitable place. We recommend between 3.5 - 4 bar
(58 PSI) (max). Do not exceed 4 bar
pressure.
Sparkling Water Flow Rate - Sparkling Versions Only

NOTE: Sparkling water flow rate factory setting = 2.4L per minute MAX. This may need adjusting
depending on inlet pressure. To do so follow below steps:
Remove the 2 screws
holding the unit lid down
and slide the lid off.
Remove the right hand side
panel screws. 2 screws are
located at the back and
one on top. Then slide the
panel back to gain access
to the flow controller.
Locate the flow control
adjuster, this is towards the
front of the unit.
Flow can then be adjusted
as follows: turning the cap
anti-clockwise to increase
flow and clockwise to
restrict flow. After each
adjustment the flow rate
should be timed to an
acceptable flow rate
and/or uninterrupted
sparkling dispense.
Once the correct flow rate is achieved place the cover back on to the unit by sliding it in place and replacing the
screws.

NOTE: Failure to use sanitising products and processes approved by Borg & Overström will invalidate your warranty.
This operation must only
be carried out by trained
staff.
A sanitisation procedure is
recommended every 6
months.
Turn off incoming mains
water
Briefly press chilled
dispense button to release
internal water pressure
from the machine.
Remove the existing filter Use hand gel and put on
protective gloves.
Add 25 ml of Bioguard
Internal Sanitising Solution
to a clean and empty
service filter cartridge.
Connect to filter head.
Turn on incoming water,
allow the service filter
cartridge to fill
Dispense water using the
chilled button until the
water appears pink.
Repeat with sparkling &
ambient water buttons.
Leave the solution inside
machine for sanitisation to
take effect (minimum 5
minutes) while thoroughly
cleaning the dispenser
externally. (All
maintenance operations
must be carried out with
the dispenser switched
off.)
Pay particular attention to
the dispense faucet and
the push button controls.
For this use Sterizen
External Sanitiser and
Sanitising Wipes.
Sanitisation Guide
Maintenance & Cleaning

Remember to include the
drip tray. If a Waste
Overflow System is fitted,
empty this and flush
through with a small
amount of sanitisation fluid
if needed.
Attend to any cosmetic
marks as needed. For this
we recommend the use of
Bioguard External
Sanitiser.
Reconnect the power and
switch on the dispenser.
When the external
cleaning (minimum 5
minutes) is completed, flush
the machine using the
chilled button with clean
water until the dispense
water runs clear.Repeat
briefly with the ambient
and sparkling buttons if
present.
Turn off water and briefly
press chilled dispense
button to release internal
water pressure from the
machine.
Remove the service filter.
Retain service filter for
reuse.
Fit new filter and turn on
incoming water supply.
Pre-flush the new filter to
waste using the chilled
button until the water
appears clear and is free
of air. Flush through a
small amount of water to
check all functions.
Please note that this sanitisation fluid 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 fluids.
In the event of any skin
contact, flush
immediately with clean,
cold water.
Emptying the CO2 Tank