BWT E1 NEU HWS User manual

BWT E1 NEU ¾“-1“
(DN 20-25)
Important notice: Always keep the fitting and operating instructions close at hand to
avoid any mistakes and before carrying out any work on the device you should read
the fitting and operating instructions carefully and follow them. While ourdata sheets
and brochures should provide advice to the best of our knowledge, the content thereof
is not legally binding. In addition to this, our general terms and conditions of trade
apply.
Subject to alterations!
Installation and operating instructions EN
EHF
E1 NEU HWS ¾“ - 1“
EHF Single-lever filter / HWS domestic water station
E1 NEU ¾“ - 1“

2
Thank you very much for the confidence
that you have shown in us
by purchasing a BWT appliance.
Table of contents
EN

3
EN
1.
Scope of supply.............................................................................................................. 5
2.
Purpose ......................................................................................................................... 5
2.1 Filtration............................................................................................................................5
2.2 Pressure reducer (only E1 NEU HWS)...................................................................................5
3.
Function......................................................................................................................... 5
3.1 Filtration............................................................................................................................5
3.2 Pressure reducder + backflow preventer (only E1 NEU HWS)..................................................5
4.
Installation pre-requisites................................................................................................ 5
5.
Installation..................................................................................................................... 6
5.1 Check the direction of flow and change if necessary..............................................................6
5.2 Install filter.........................................................................................................................6
5.3 Install wall mounting...........................................................................................................6
6.Commissioning............................................................................................................... 6
6.1 Set pressure reducer (only E1 NEU HWS).............................................................................6
7.Operation...................................................................................................................... 7
7.1 Replace filter......................................................................................................................7
8.
Reminder service............................................................................................................ 7
9.
Operators' obligations ................................................................................................... 8
10.
10-year E1 guarantee .................................................................................................. 8
11.
Warranty..................................................................................................................... 8
12.
Rectification of defects.................................................................................................. 9
13.
Standards and legal provisions..................................................................................... 9
14.
Maintenance instructions .............................................................................................. 9
15.
Technical data.............................................................................................................. 10
Contens

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EN
Fig. 3 - Hygienic vault (lter cup + lter element) in the
black supporting core Fig. 4 -
Pressure reducer functional unit only E1 NEU HWS
Fig. 2 - E1 NEU HWSFig. 1 - E1 NEU HWS
Fig. 5 - E1 NEU HWS Backview E1 NEU HWS E1 NEU EHF
10
8
7
12
11
9
5
6
10
2
3
4
1
3A

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EN
1. Scope of supply
E1 NEU consisting of:
1 Lever (handle)
2 Cap
3 Connection screw joints and seals
3AConnection screw joints and seals, with a back-
ow preventer on the input side (with control
screw or facility for the connection of an inlet
pressure gauge, only E1 NEU HWS)
4 Supporting core incl. hygienic vault (= lter cup
+ lter element)
5 Back pressure manometer (only E1 NEU HWS)
6 Stopcock/unlocking device
Pressure reducer (only E1 NEU HWS, Fig. 4) con-
sisting of:
7 Spring cap
8 Display for back pressure setting value
9 Locking screw
10 Rotary knob for pressure reducer
11 Pressure reducer element
12 Slide ring
To be ordered separately:
Replacement lter element (in pack of 2)
Order number DE: 10386 (100 µm)
Order number AT: 810386 (100 µm)
Filter element change every 6 months!
Or for optimum hygiene: hygienic vault = lter cup
+ lter element + individually packaged lid, Replace-
ment without touching components exposed to water.
Order number DE: 20393 (100 µm)
Order number AT: 820393 (100 µm)
Hygienic vault change every 12 months!
2. Purpose
2.1 Filtration
The BWT E1 NEU is intended for the ltration of drin-
king and service water. It protects the water pipes
and the connected water-bearing system components
from functional defects and corrosion damage by for-
eign particles such as rust particles, shavings, sand,
hemp, etc. The lter cannot be used with chemically
treated circulation water, process water and cooling
water for ow cooling. A coarse dirt separator must
be installed upstream for waters with coarse dirt par-
ticles. The lters are not suitable for oils, fats, solvents,
soaps and other lubricating media. Neither are they
suitable for the separation of water-soluble substan-
ces.
2.2 Pressure reducer (only E1 NEU HWS)
The integrated pressure reducer installed downstream
from the lter serves to reduce pressure and regu-
late a desired back pressure, predominantly in the
domestic water supply plant. It keeps the regulated
back pressure almost constant, even when the pre-
pressure uctuates between, for example, 16 bar
and the set back pressure, e.g. 3 bar. A uniform, not
too high pressure preserves ttings and devices in
the entire domestic water installation, helps to save
up to 50 % of water and minimises noise evolution.
We recommend the installation of a pressure redu-
cer from 4 bar pre-pressure.
Caution: The plant must be set up according to the
installation and operating instructions of the AVB
Water V, Sec. 12.2. by the water supply company
or an installation company entered into the installer
directory of a water supply company.
3. Function
3.1 Filtration
The raw water ows through the raw water inlet
into the lter and then from the outside to the inside
through the lter element to the pure water outlet. The
foreign particles larger than the lter rating are retai-
ned on the outside of the lter fabric. Clean water
enters into the pipeline system.
If as a result of the increasing contamination of the
lter fabric the water pressure decreases perceptib-
ly, the lter element must be replaced. BUT AFTER 6
MONTHS AT THE LATEST!
3.2 Pressure reducer + backow preventer (only
E1 NEU HWS)
The pressure reducer works according to the prin-
ciple of the relieved single-seat valve. It is controlled
starting from the back pressure via a large-dimen-
sioned membrane and a pressure spring, the ten-
sion and thus the back pressure of which can be
changed with the rotary knob (11). The display (5)
shows the respective back pressure setting value.
The backow preventer only opens in the direction
of ow when water is removed and is tightly sealed
in idle position or counterpressure.
4. Installation pre-requisites
Heed local installation regulations, general guide-
lines and technical data. Install lters in cold water
pipes upstream from the objects to be protected.
Caution: The installation site must be frostproof and
avoid disruptive inuences (e.g. solvent vapours,
heating oil, washing alkalis, all kinds of chemicals,
UV radiation and heat sources above 40 °C).

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EN
Caution: keep plastic components free from oil and
fat, solvents and acids and base cleaners.
5. Installation
5.1 Check the direction of ow and change if
necessary
In the delivery state the direction of ow is from
left to right (heed ow direction arrow – visible on
the brass body below the handle). It is possible to
change this prior to lter installation – without con-
nection screw joints and manometer:
-Turn stopcock/
unlocking device (6)
to the ‘open‘ position
(90° clockwise)
-Open lever (1) by
approx. 80° - 90°
-Remove the black
cover on the reverse
of the lter
-Loosen bolt
(anti-rotation device)
-Rotate the brass
housing by 180°
-Reinsert the bolt
(anti-rotation device)
The direction of ow is
now from right to left.
5.2 Install lter
Mount the screw connection including the at gasket
enclosed with the lter – the screw connection with
the backow preventer must be positioned on the in-
put side (only E1 NEU HWS). Seal the manometer (5)
which is also enclosed (only E1 NEU HWS). Then in-
stall the lter according to the nominal width into the
similarly dimensioned cold water pipe and upstream
from the objects to be protected.
5.3 Install wall mounting
The wall mounting is pre-installed on the lter. It is
xed to the wall using the supplied bolts and dowels
(2 x KA40 or Ø 6 mm) in the wall.
-Installation of wall
mounting only after
installation of the
lter
-Distances for installa-
tion of wall mounting
according to the
sketch
-Caution: If lter * is
closed, then position
above in wall moun-
ting.
-A hygienic vault
(lter cup + lter
element + lid) can
be suspended in the
mounting
-The distance from the
wall varies between
80 - 120 mm. Two-
part wall mounting.
6. Commissioning
Check lter for proper instal-
lation.
6.1 Set pressure reducer (only
E1 NEU HWS)
The pressure reducer is under
the cap.
two part wall
mounting
Oblong hole for setting the distance
from the wall 80 mm - 120 mm
Hygienic vault
can be suspended
in the mounting
2 part design
Hygienic vault
Hygienic vault
can be suspended
in the mounting
2 part design
80-120

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EN
Simply remove the cap (2) to reach the pressure re-
ducer. The pressure reducer is set to a back pressure
of 4 bar at the factory. To change the back pressure,
loosen the locking screw (10) and turn the rotary
knob (11). The back pressure can be changed by
turning the setting knob (11) (control range 2 - 6
bar).
Clockwise rotation = higher back pressure.
Anti-clockwise = lower back pressure.
The manometer (5) displays the back pressure. Du-
ring setting, an outlet valve downstream from the
pressure reducer must be briey opened and closed
again a number of times. When water is removed,
the back pressure is temporarily reduced. The back
pressure must not exceed 80 % of the response pres-
sure of the hot water safety valve (DIN 1988-200).
7. Operation
The lter and pressure regulation functions work
completely autonomously without the need for ope-
ration. For impeccable, hygienic enjoyment of drin-
king water in accordance with the standards, it is
only necessary to replace the lter element at least
every 6 months.
7.1 Replace lter
With the new single lever operation, replacing the
lter element is easy and only takes seconds:
1. Slowly unlock the stopcock (6), thus
simultaneously and automatically stopping
the water (A1).
Note: The stopcock (6) is for maintenance
purposes only, i.e. for replacing the lter element.
It is not intended as the main shut-off for the water
supply.
2. Lift the single lever to approx. 130° (B1) – Pull
out the supporting core, incl. lter cup and lter
element (C1).
3. Dispose of the used lter element or – for
optimum hygiene – the complete hygienic vault
(environmentally-friendly plastic recycling).
4. Insert the new lter element or hygienic vault (A2),
close the lever (B2). Slowly release the stopcock/
unlocking device (6) (90° anti-clockwise) (C2).
8. Reminder service
With the BWT reminder service, BWT’s mainte-
nance information service will remind you on a
regular basis when it is time to change the lter
element and also provide important hints and tips
on hygiene. In combination with the reminder ser-
vice and the regular change of the lter element
or hygiene kit, an extended 10-year E1 guarantee
is available, depending on the national subsidiary
(see item 10).
B1
A1
C1
C1
B2
A2
C1

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EN
9. Operators’ obligations
According to German legislation
You have purchased a durable and service-friendly
product. However, all technical plants require regu-
lar servicing to keep them in perfect working order.
The pre-requisite for functioning and the warranty is
the replacement of the lter element and the visual
inspection for leakproofness by the operator.
Verication of initial pressure every 2 months in the
case of zero ow and high levels of water removal.
A further pre-requisite for functioning and the warran-
ty is replacing wearing parts at the prescribed main-
tenance intervals (see ‘12. Maintenance instruction’).
In accordance with DIN EN 806-5, wearing parts
must be replaced by experts (installer or factory ser-
vice centre).
We recommend entering into a maintenance con-
tract with your installer or factory service centre.
Note: Filters should not be operated by children.
Squeezing of the hand/ngers is possible.
Qualied staff:
The product may only be installed, commissioned
and serviced by skilled personnel. Only trained per-
sons are allowed to operate and use it.
Trained person:
Has received instruction and studied the information
in this document concerning the tasks entrusted to
him/her, and the possible risks in the event of inap-
propriate behaviour.
Skilled personnel:
Based on the professional training received, know-
ledge and experience, and knowledge of the rele-
vant denitions, is qualied to install the product, to
commission and to service it.
10. 10-year E1 guarantee
Depending on the BWT national subsidiary, a 10-
year guarantee is available for the new E1 lter.
The following prerequisites must be met:
- installation by a qualied expert
- proper operation
- registration (for details see www.bwt-service.com)
11. Warranty
In the event of breakdown during the warranty peri-
od, where a maintenance contract exists please con-
tact our factory service centre, specifying the type
of device (see technical data or type plate on the
device). Work under warranty may only be execut-
ed by our factory service centre. Works performed
under warranty by a specialist rm require explicit
commissioning by our customer service department.
If no maintenance contract exists, please contact
your in-house installer.

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EN
13. Standards and legal provisions
in the most recent version in each case
The lter was manufactured in compliance with
DIN EN 13443-1 “Mechanical lters and lter com-
binations in the drinking water installation”.
The following must be heeded when installing and
operating the lter:
-DIN EN 806, Technical regulations for drinking
water installations
-DIN 1988-200, Technical regulations for drin-
king water installations
-Regulation on the quality of water for human
consumption (drinking water regulation)
-Act on Regulation of the Water Household
(WHG)
-Act for promoting closed substance cycle waste
management and ensuring environmentally com-
patible waste disposal (Closed Substance Cycle
and Waste Management)
-The relevant regulations for installation, operati-
on and maintenance
14. Maintenance instructions
Drinking water is a foodstuff.
Hygienic care in the execution of works should
therefore be self-evident.
In accordance with DIN EN 806-5, maintenance
must be performed by experts (installer or factory
service centre).
Replacement of wearing parts (only original spare
parts)
Seals every 3 yrs
Pressure reducer element (12) every 6 yrs
Manometer (6) every 6 yrs
Verication of initial pressure with zero ow and
high levels of water removal.
Replacement of pressure-reducing element (only E1
NEU HWS)
Pressure reducer is located
under the cap (2). After stop-
ping the ow of water loo-
sen locking screw (10) and
turn rotary knob (11) in an
anticlockwise direction until
latching. Screw off spring
cover (8) with a ring wrench
(wrench width 36). Remove
pressure-reducing element
(12) and slide ring (13).
Grease O-rings of the new
valve element with silicone
grease and insert the valve
element into the casing, hee-
ding the correct t of the O
rings. Insert slide ring, screw
in spring cover and locking
screw. (tightening torque
35 - 40 N/m) Set pressure
reducer as described under
Commissioning. Check all
connections for leakproof-
ness (visual inspection).
Warning: Any guarantee /
warranty is void if the hygi-
ene safe is damaged, e.g.
mechanically (hygienic vault
falls on the oor) or thermal (stored under -25 °C /
over 40 °C temperature or is constantly exposed to
intense sunlight). Do not wash the lter element and
hygienic vault in the dishwasher! It must be used
only factory-new hygienic vaults, BWT replaced da-
maged parts free of charge: www.bwt-group.com.
Defect Cause Rectication
Water pressure in network sharply
reduced; water pressure falls sharply
upon removal (by more than 35 % of
resting pressure)
Filter element soiled Replace lter element/hygienic vault
Water pressure increases above the
set value Replacement or wear of sealing elements Readjust back pressure (see Com- missioning). If the pressure increases
further the valve element (12) must be
replaced (only E1 NEU HWS)
If the defect cannot be rectied with the aid of this information, the factory service centre must be contacted..
12. Rectication of defects

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EN
15. Technical data
BWT E1 NEU Single-lever lter Typ EHF ¾“ (1“) HWS ¾“ HWS 1“
Nominal width DN 20 20 25
Connection thread H ¾" (and 1") ¾" 1"
Swivel nut thread G 1 ¼“ G 1 ¼“ G 1 ¼“
Admission width µm 90-110 90-110 90-110
Flow rate at ∆p = 0,2 bar** m³/h 1,6 - -
Flow rate at ∆p = 0,5 bar** m³/h 2,3 - -
Flow rate with reducing valve* m³/h - 2,3 3,6
Output pressure after pressure reducing valve bar - 2-6 2-6
Nominal pressure (PN) bar 16 16 16
Operating pressure, min./max. bar 2/16 2/16 2/16
Water temperature, min./max. °C 5/30 5/30 5/30
Ambient temperature, min./max. °C 5/40 5/40 5/40
Overall length without tting A mm 100 100 100
Overall length with tting B/B1 mm 185 197 199
Total hight E1 NEU EHF/HWS incl. hygienic vault C/C1 mm 551 569 569
Total hight E1 NEU EHF/HWS D/D1 mm 381 399 399
Minimum distance pipe centre to oor E mm 480 480 480
Installation mass pipe centre to wall mm 80-120 80-120 80-120
Approx. operating weight kg 3,5 4,0 4,0
Item Nr. AT 840382 840384 840385
Item Nr. DE 40382 40384 40385
EAN
9022000403828 9022000403842 9022000403859
* according to
DIN EN 1567
** according to
DIN EN 13443-1
E1 NEU HWS
E1 NEU EHF

Further information:
www.bwt.com
BWT UK Limited
BWT House, The Gateway Centre,
Coronation Road, High Wycombe
Buckinghamshire. HP12 3SU
United Kingdom
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]