BWT Avanti RF Series User manual

1-510213 / 10946 / 2016-09 / © BWT Wassertechnik GmbH / Printed in Germany
BWT Avanti RF
Manual backwashing filter
DN 25 and DN 50
90 micron sediment filter
complete with dual check valve
backflow prevention device
Installation and operating manual AUS
Suitability:
Suitable for domestic and commer-
cial installations to remove sedi-
ment and improve the service life
of plumbing fixtures and fittings.
Product Approval:
The product is certified to
ATS 5200.103
ATS 5200.103
LIC WM-020272

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5
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2a
1 Scope of supply
BWT Avanti RF Australia consisting of:
1 Top section in DR brass
2 Union connection fitting with seals
2a Union connection with dual check valve
3 Transparent bowl with filter element
4 Hose connection for flushing water supply
5 Turning knob for the backwashing element
The product is approved to ATS 5200.103; Techni-
cal Specification for plumbing and drainage products
Part 103: Water treatment systems (other than tho-
se specified in AS/NZS 3497).
2 Intended Use
The filters are primarily used for filtering sediments
from water.
They protect plumbing fixtures and fittings from mal-
functioning, and against damage caused by foreign
particles such as rust, swarf and sand.
The filters are not intended for use with chemically
treated circulating water.
2.1 Suitable Applications
• Domestic water supply
• Commercial use and high rise buildings
• Industrial
• Food preparation areas and beverage equip-
ment as a pre-filter
In applications with water containing coarse impuri-
ties, a coarse dirt separator must be used.
The filter is not suitable for oils, greases, solvents,
soaps and other lubricating media nor for the sepa-
ration of water-soluble substances.
3 Function
Untreated water flows through the filter where impu-
rities > 90 µm are trapped by the filter screen and
removed.The filter screen can be cleaned by back-
washing as required.

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For the backwashing process, the waste water con-
nection is opened by turning the turning knob (5)
and the backwashing element is also turned. The
particles on the filter cloth are removed by suction
from the suction-ring backwashing system and then
washed out.
4 Installation conditions
The unit must be installed by a licenced tradesper-
son to AS/NZS 3500.
A connection must be available for draining the flus-
hing water.
The filter installation must be protected against
freezing conditions, solvent vapours, fuel oil, che-
micals of all kinds, UV radiation and heat sources
above 40 °C.
If the unit has been dropped or damaged, plastic
parts must be replaced even if there is no visible
damage. A cover is recommended where the filter
is installed in direct sunlight.
The unit should be installed to allow clear access
for removal.
Observe the local installation regulations, gener-
al guidelines, general hygiene regulations and the
technical specifications.
A connection to the sewage system (discharge) of
min. DN 40 should be available.
Attention: The installation site must be protect-
ed against frost and must ensure the protection of
the filter against e.g. solvent vapours, fuel oil, lees,
chemicals of any kind, UV radiation and heat sourc-
es above 40 °C.
Attention: Keep the plastic parts free from grease,
solvents and acidic as well as basic detergents.The
plastic parts must be replaced even if there is no vis-
ible damage after severe concussions and shocks
e.g. due to the use of unsuitable tools or if dropped
on stone floors etc (danger of bursting). Avoid ex-
treme pressure impact.
Σm3
0 0 0
> 20 mm

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Σm3
0 0 0
> 20 mm
5 Installation
Install filter according to its nominal size in cold wa-
ter pipes of the same dimensions and before the
equipment to be protected. Install stop valves be-
fore and after the filter.
Assemble the connection fittings (2) in the pipe and
install filter in flow direction (see flow direction ar-
row) in the horizontal cold water pipe (see instal-
lation sketch).
Connect flushing water connection with hose to the
waste drain or provide a collection basin (capaci-
ty approx. 15 l).
Please note: The flushing water hose must be in-
stalled at a minimum distance of 20 mm above the
highest possible waste water level (free discharge).
6 Startup
Check the filter and the flushing water pipe for prop-
er installation.
The stop valves must not be opened yet. Check the
transparent cylinder (3) for proper fit and then close
the turning knob (5) by turning it clockwise.
Slowly open the stop valves before and after the
filter and deaerate the water pipe at the next out-
let downstram.
If the flushing water pipe is not connected to the
waste water before backwashing, provide a col-
lecting basin.
Open the turning knob counter-clockwise and con-
tinue until fully open. Reverse the procedure to close
and complete the backwash. Check wether the fil-
ter is correctly sealed.
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7 Operation
A backwash must be carried out as required to pre-
vent dirt particles from settling on the filter cloth (or
more frequently with higher amounts of dirt).
Before starting the backwash procedure, provide
a collecting basin, if the flushing water pipe is not
connected to the waste water drain.
Backwashing
Open the turning knob (5) counter-clockwise until
you can hear water running out and then close it
again. Check whether the filter is correctly sealed.
The turning knob is epuipped with a safety clutch.
If turning too forcibly a latch jumps, this prevents
damage to the locking system.
The plastic parts may only be cleaned with a soft,
damp cloth. Do not use any solvents or detergents
nor acid cleaners.
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8 Trouble-shooting
Fault Cause Solution
Water pressure in system has
dropped considerably;
Water pressure drops consider-
ably when water is bled
(by more than 35% of the stat-
ic pressure)
Dirty filter element Carry out backwash
Flushing water outlet cannot
be closed
Backwash element does not
reach final position due to
coarse dirt particles
Fully open and close turning
knob; repeat backwash sev-
eral times
If the fault cannot be rectified using these notes, please contact your local Reece branch.
Flow-rate Avanti RF Type 1“
Flow-rate Avanti RF Type 2“
6,7
26,7
43,3
55,0
73,3
86,7
91,7
96,7
101,7
110,0
0,0
20,0
40,0
60,0
80,0
100,0
120,0
140,0
160,0
0,020,040,060,080,0100,0 120,0
Pressuredrop p in kPa
Flowrate Q in l/min
Multipur 25
40,0
96,7
146,7
158,3
206,7
250,0
258,3
263,3
270,0
276,7
0,0
20,0
40,0
60,0
80,0
100,0
120,0
140,0
160,0
0,050,0100,0 150,0200,0 250,
03
00,0
Pressuredrop p in kPa
Flowrate Q in l/min
Multipur 50

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C
D
A
B
E
G
9 Specifications
BWT Avanti RF Type 1“ 2“
Nominal connection size DN 25 50
Hose connection, diameter E mm 14 20
Flow rate at ∆p = 20 kPa m3/h 3,5 10,0
Flow rate at ∆p = 50 kPa m3/h 6,0 15,5
Filter screen µm 90/110
Nominal pressure (PN) bar 16
Water temperature °C 5 - 30
Ambient temperature, max. °C 5 - 40
Overall length without fitting A mm 100 140
Overall length with fitting B mm 205 327
Total height C mm 278 370
Distance pipe centre to floor, min. D mm 400 450
Swivel nut thread G G 1 1/4“ x R1“ G 2 1/4“ x R2“
Distance pipe centre to wall, min. mm 50 60
Operating weight, approx. kg 2,2 5,4

Further information:
Reece. Works
for you. ™
Call 1800 032 566 or visit www.reece.com.au
for your nearest Reece store.
Due to limitations in the printing process the
colours in this brochure are a guide only.
The manufacturer/distributor reserves the right
to vary specifications or delete models from
their range without prior notification. The ma-
nufacturer/distributor takes no responsibility for
printing errors.
www.reece.com.au