Borg & Overstrom E4 User manual

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
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
Operation

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.