
Installation guide
B-4000
Tap options XL, XT, XR

2
Components for Billi B-4000
– XL, XT, XR
Before commencing installation,
ensure you have identified the following.
1. Underbench module
2. Dispenser upper with tubing
3. Dispenser base & mount
4. Barb locking bush
5. 4mm chrome screw & allen key
6. Large washer
7. Tube spring clamps x 3
8. 600mm flexible braided hose
9. Filter cartridge (installed)
10. User guide
11 Warranty registration card
12. Warning label
Additional Components – XR
13. Remote panel kit
Determine Unit Location
Plan the installation. Dispenser tube lengths,
position of power and water outlets, required
air space around the underbench module and
access for service must be considered before
cutting tube lengths. Refer to Diagrams 1 and 2.
Unit must be installed horizontally with display
panel facing to front of cupboard. The B-4000 is
designed for internal installation only.
Model Height Width Depth
Min side
clearance
B-4000 340mm 180mm 365mm 10mm
Water Supply
The B-4000 must only be connected to a cold
water supply. A ½” BSP stop tap (not supplied)
is to be installed in an easily accessible position
within 600mm from the B-4000 water
supply inlet.
Dynamic water supply pressure:
Min. 250 kPa, max. 1000 kPa.
Minimum water supply: 6 l/m at 250 kPa
Supply temp: min. 5°C, max. 30°C.
* Where supply pressure is greater than 500
kPa a PLV must be fitted. Billi recommends
PLV’s with anti-hammer properties.
Do not install with water that is
microbiologically unsafe or with water of
unknown quality without adequate disinfection
before or after the system. Systems certified
for cyst reduction may be used on disinfected
water that may contain filterable cysts.
Power Requirements
A single 10 amp standard power outlet
is required. A dedicated circuit should be
provided and must be fitted with an earth
leakage protection device (RCD).
An externally
fitted RCD device is acceptable.
The B-4000 is
supplied with a 1 metre flex cord and plug.
Installation requirements.
XL, XT, XR.
215mm
175mm
20mm
bench
thickness
1mm-48mm
Diagram 2
10mm
130mm
35mm 70mm
Diagram 1
Power
Outlet
800mm
Tube Length
Supplied
Stop Tap
(Installed by Plumber)
Max 600mm from Unit
Cupboard Dimensions:
230mm Minimum Width
523mm Minimum Depth
60mm
Minimum
Clearance
Tubing
removed
for clarity
FRONT SIDE
TOP
20mm
Diagram 3
180mm
340mm 340mm
20mm
460mm
180mm
460mm
Tubing
removed
for clarity

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1. Install Dispenser Assembly
Determine position of dispenser mounting
hole in sinktop or benchtop. Dispenser
base template (Diagram 4) may be cut
out and used t
o assist in correct positioning.
Refer to Diagram 2 for clearances allowed.
Hole size required is ø32mm.
—Stainless Steel Sinktop
A suitable 32mm hole punch (Part no: 857901)
is available as an accessory from Billi
Australia Pty Ltd. If possible, cut hole with die
mounted below the sinktop surface so that
burr is pulled downwards. Alternatively,
remove burr and radius edge of hole with fine
file. This allows barbed dispenser mount to
slide smoothly into mounting hole.
—Timber/Laminate Benchtop
Maximum benchtop thickness is 50mm
Cut 35mm hole in appropriate position*.
When drilling through a particle board bench
top, take care to avoid a large chip breaking
away as drill breaks through underside
surface. We recommend drilling a small
pilot hole through benchtop, partially drilling
the 35mm hole from underneath and then
completing drilling the hole from above.
The large 30mm washer supplied may
be used to secure barb where underside
particle board bench top has chipped away.
* For granite or marble benchtops we
recommend you use a certified stone
mason to pre-drill the hole.
2. Activate Dispenser Swivel Feature
To activate the swivel feature of your
dispenser, you will need to remove the
locking piece from the dispenser base.
Simply push out the piece as show in
Diagram 5. This will allow the tap to
move 45 degrees to the left and right.
3. Fit Dispenser Base
a. Cut a 32mm hole in sinktop or benchtop.
Remove burr if protruding upwards.
b. Push barbed mounting shaft through
mount hole.
c. Insert barb locking bush as shown
in Diagram 6. Finger tighten nut.
d. Ensure barb is centred in mount hole
before tightening. Check position of
base ring and gasket.
e. Moderately tighten locking nut using
multigrips or spanner. Take care to avoid
overtightening nut which may break the
plastic threaded shaft.
f. Place large D washer over thread as
shown in Diagram 7.
g. Cut off excess threaded shaft with a
hacksaw, using washer as a cutting guide.
IMPORTANT: Remove burrs and check internal
bore is completely smooth.
4. Fit Dispenser Head Assembly
a. Feed dispenser tubing and loom through
centre hole in the following order:
i. Dispenser power cord.
ii. Silicone tubes
b. Gently pull hoses from under the bench
top, do not attempt to force tubing through
with a pointed object as silicone tube is
easily punctured. Check tubing is not
kinked or twisted.
c. Turn dispenser head assembly to
approximately 60° from the straight
ahead position of dispenser base.
Slide head assembly onto base assembly
whilst gently pulling tubing downwards
from underneath to prevent tubing
bunching and kinking. Mounting lugs
will pass nut and slide down the 3
grooves on the swivel bearing.
d. Once fully down, turn dispenser to
straight ahead position. Fit chrome
plated M4 retaining screw to lower
rear threaded hole and tighten using the
allen key supplied. If swivel feature is
activated, check dispenser now swivels
smoothly 45° in each direction.
Installing the dispenser.
XL, XT, XR.
IMPORTANT: This Billi appliance is to be installed by a licensed trades person in accordance with
AS/NZS 3500.1 and AS/NZ 3500.2 and in compliance with applicable state regulatory requirements.
For correct operation of this appliance, it is essential to observe the manufacturer’s instructions.
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dispenser base
template
Diagram 4
Silicone
tubing
Diagram 8
Diagram 5
Diagram 6
Swivel
Bearing
Gasket
D Washer
required
Barb locking bush in position
Barbed
Mounting
Shaft
Ensure burr
is removed
& edge has
a radius
Base Casting
Locking Nut
Diagram 7
Cut o
excess
thread
Remove burrs after cutting and
ensure internal bore is smooth
Alloy locking
bush
D washer

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Additional installation – XR.
Flush mount remote panel.
Additional installation – XR.
Proud mount remote panel.
Determine Remote Panel Location
Dimensions and layout are shown in
diagram 9. Panel can be installed on a
wall, benchtop or even inside a cupboard
Minimum cut out dimensions are 121mm
height x 70mm width. Minimum depth
must be 20mm.
Cut out cavity into the plaster wall.
Ensure the cable is pre-installed into the
flush mount bracket before plastering.
Place the flush bracket into the plaster
wall with the cable gap facing towards the
ground.
Installing the Remote Panel
Cable must be protruding out of the
bottom of bracket – see diagram 9.
Tape up the cable terminals before
plastering process – see diagram 10.
Determine Remote Panel Location
Cut out cable access hole in the desired
location.
Hole size must be Width 25mm x Height
45mm – see diagram 13.
Drill a pilot hole using bracket as a
template. The template could also be
used as a guide to cut into the plaster.
Install Mount Bracket
Fasten the mount bracket on to the
wall using phillips head screwdriver
(ensure the spring clips are facing up)
– see diagram 14.
Diagram 10
Plaster and Paint
Start plastering as required.
Wait for the plaster to dry before cleaning
the bracket.
Use a light sandpaper to give smooth
finish on the drywall.
Then paint as required.
Completing Installation
Take the tape off the cable connector and
plug it into the panel – see diagram 11
The panel and bracket are magnetic.
Upon install, the magnets will pull
together and secure the module into
place in place – see diagram 11.
Installation is finished – see diagram 12.
Magnetic remover tool may be
required again. Do not throw away.
Diagram 9
Diagram 12
Diagram 11
Install Cabling
Feed the cable through pre cut hole.
Screw and fasten the cable strain bracket
to the back of remote tap module.
Secure the tap module by sliding it
onto the previously installed bracket
– see diagram 15.
Completing Installation
Ensure panel is secured.
Clean up any excess plaster.
Installation is finished – see diagram 16.
Diagram 14
Diagram 13
Diagram 16
Diagram 15
70mm
20mm
121mm
BRACKET
PANEL
25mm
45mm

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Turn On the Water Supply
Turn on water supply and ensure that there are
no leaks. Remove front panel of unit and remove
packing foam from under filter canister. Ensure
filter canister is securely locked back into place.
Replace front panel.
Power On
When power is applied the system checks
the water level in the hot tank and if empty
(below the low level sensor) then the unit
will enter the boiling point calibration mode.
This will normally only occur the first time
a new system is turned on.
On power ON, if the hot tank level sensor
is above the low level sensor, the unit will
enter its normal operating mode at full power.
This will happen when the system has been
installed and used at least once.
IMPORTANT: On initial power up, leave the unit
for 10 minutes before attempting user setup.
Boiling Point Calibration
The hot tank will first fill to the height of the
low level sensor. The water is then heated until
it reaches boiling point. The unit will continue
to boil for up to 30 seconds while the
temperature sensor calibrates.
WARNING: Steam and small amounts of
hot water may be discharged from the taps
and vent during this period.
While calibration is underway the hot
water indicator (red) will double blink rapidly.
The hot water set point is calibrated 0.5°C
below the boiling point. Once calibrated,
the unit will resume normal operations
and the calibration data is saved.
The unit will not re-calibrate under normal
circumstances. If a repeated calibration is
required the following procedure should be
followed:
– turn the water supply off
– run the hot water until the hot tank is empty
– turn the power off for 5 seconds, then on again
– turn water supply on
– the unit will then re-calibrate its boiling point.
Re-check Connections for Leaks
Explain Operation to User
1. Flush Water Supply
Flush water supply pipework before installing
the underbench unit by connecting 600mm
flexible braided hose to the supply tap and
running water into a bucket. Blockages/unit
malfunction caused by debris are not covered
under warranty.
2. Install Underbench Unit
Take care to observe minimum clearances.
Ensure there is adequate access to service
the unit, taking into account the tube lengths
and space available Refer Diagram 1, page 2.
3. Connect Dispenser Tubing
and Electrical Plug
IMPORTANT: Boiling outlet (red), vent tube
(grey) must not be kinked and must be installed
with a continual fall and no sag.
Connect all tubing and electrical plug as
shown in diagram 17 & 18.
Ensure correct orientation of dispenser
power plug before insertion. Trim tubes to
correct lengths using a sharp knife or plastic
tube cutter. Avoid leaving excess tubing which
will sag, trapping water. Fit spring clamps
supplied to retain silicone rubber tubing to
barbed fittings.
Installing
underbench module.
red silicon tube
blue silicon tube
grey silicon tube
dispenser cord
power cord
flexible hose
1/2” stop tap
(installed by plumber)
Diagram 17
boiling
(red)
ambient
(blue)
dispenser
power
cord
water
supply
hot vent
(grey)
Diagram 18
B-4000
Top View
Commissioning.

6
WARNINGS.
For continued safety of this appliance
it must be installed, operated and
maintained in accordance with the
manufacturer’s instructions.
— Your appliance should be installed by
a suitably qualified tradesperson.
— For correct operation of this appliance
it is essential to observe the instructions
as outlined in this booklet.
— Do not use this appliance with water
that is microbiologically unsafe or with
water of unknown quality without adequate
disinfection before or after the system.
Systems certified for cyst reduction may
be used on disinfected water that may
contain filterable cysts.
— Filter replacement must be performed
at intervals of not more than 12 months.
— Use this appliance only as directed in
these instructions and only for its designed
purpose.
— This appliance is not intended for use by
persons (including children) with reduced
physical, sensory or mental capabilities, or
lack of experience and knowledge, unless
they have been given supervision or
instruction concerning use of the appliance
by a person responsible for their safety.
— Children should be supervised to ensure
that they do not play with the appliance.
— DANGER: The operation of the thermal
cut-out indicates a possibly dangerous
situation. Do not reset the thermal cut-out
until the water heater has been serviced
by a qualified person.
— WARNING: Do not connect any restrictor
or pressure relief device to the vent pipe
of this water heater if installed.
— If the supply cord is damaged, it must be
replaced by the manufacturer, its service
agent or similarly qualified persons in
order to avoid a hazard.
— New hose-sets supplied with the appliance
are to be used and old hose-sets should
not be re-used.
INSTALLATION AND
COMMISSIONING CHECKLIST
Unit is set to reflect correct tap style
Filter packing foam removed from under
filter canister.
Dispenser mounted securely.
Dispenser swivels 45º in each direction
– M4 chrome retaining screw fitted.
Tubing is cut to correct lengths and not
kinked or sagging. Red, grey and 10mm
black tubes have a continual fall.
Tubing not twisted or kinked.
Tubing secured correctly – nuts and
spring clips.
Water main flushed before connection
to unit.
Unit connected to COLD water supply.
Correct air clearances around unit.
Power circuit fitted with an RCD –
earth leakage protection device.
Sawdust cleaned out of cupboard area.
Door vents fitted correctly (air-cooled
models only).
Initial program settings correctly
set for dispenser tube length.
Time (check if daylight savings),
day and date set correctly.
– Refer to B-4000 User Guide.
Unit heating and cooling (after initial
fill). Red and blue dispenser icons
flashing (or on continually when reached
temperature).
Boiling and chilled water flow correct.
If any difficulties arise contact
Billi Australia Pty Ltd: Phone 1800 812 321
(Free call).
Validate your warranty online at
www.billi.com.au
For information on our filtration
and service contracts please contact
Billi Customer Service on 1800 812 321
Commissioning.

7

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Billi Australi
a Pty Ltd
42 Luckno
w Cr
escent, Thomastown
Victoria 3074 Australia
Telephone 1800 812 321
Facsimile +61 3 9469 0499
www.billi.com.au
Designed and manufactured in Australia.
As Billi Australia Pty Ltd has a policy of
continual improvement, all details are
subject to change without notice. All
goods are sold subject to our published
terms and conditions. Billi is a registered
trademark. 0618
