BWT bestaqua 60 User manual

BW T bestaqua 60 - 62
Reverse Osmosis Plant
Installation and Operating manual EN

EN
2

EN
3
Content
1General information ..............................................................5
2Explanation of words ............................................................5
3Function descriptions .............................................................6
3.1 Permeate production ..................................................................................................6
4Positioning of the RO unit ......................................................6
5Water quality ........................................................................7
6Water connections .................................................................7
6.1 Connection of feed water (inlet water)..........................................................................7
6.2 Connection of outlet hose............................................................................................8
6.3 Connection og overflow hose ......................................................................................8
6.4 Connection of permeate (treated water)........................................................................8
7Electrical connections .............................................................8
8Function buttons og display elements ....................................9
8.1 Menu: Settings / GENERAL.......................................................................................10
8.2 Menu: Settings / Pressure .........................................................................................11
8.3 Menu: Settings / Conductivity ...................................................................................11
8.4 Menu: Settings / WCF Setup ....................................................................................12
8.5 Menu: Settings / System delays.................................................................................12
8.6 Menu: Installation (password protected)......................................................................13
8.7 Menu: MAINTENANCE............................................................................................14
8.8 Menu: INFO............................................................................................................14
9Start-up of the RO unit.........................................................15
9.1 Adjustment of concentrate outlet amount.....................................................................15
9.2 Adjustment of recirculation amount ............................................................................16
9.3 Start-up of transportpump (model LT & HQ).................................................................17
9.4 Use of manual by-pass..............................................................................................17
10 Automatic functions .............................................................17
11 Maintenance and troubleshooting........................................18

EN
4
11.1 Maintenance........................................................................................................18
11.2 Replacement of membranes ...................................................................................18
11.3 Overview of the Status- and Alarm LED ...................................................................19
11.4 Troubleshooting....................................................................................................19
12 Technical specifications ........................................................20
13 Appendix ............................................................................21
13.1 Preset standard values for BWT bestaqua 60, 61 and 62 ........................................21
13.2 Wiring diagram ...................................................................................................22
13.3 PI-diagram ...........................................................................................................25
13.4 Arrangement drawing ...........................................................................................26
13.4.1 Arrangement drawing: BWT bestaqua 62HQ ...................................................26
13.4.2 Arrangement drawing: BWT bestaqua 62HQ + BWT aquaflex 38 (Optional) .....27
13.5 Start-up control .....................................................................................................28
13.6 Operating journal.................................................................................................29
13.7 Spare parts drawing .............................................................................................30
13.7.1 Spare part drawing: BWT bestaqua 62HQ.......................................................30
13.7.2 Spare part drawing: BWT bestaqua 62HQ + BWT aquaflex 38 (Optional)..........31
13.8 Spare part list.......................................................................................................32
13.9 Disposal ..............................................................................................................34
13.10 Declaration of Conformity......................................................................................35

EN
5
1General information
This installation and operating manual (OPM)
applies to BWT bestaqua 60-62 total
desalination unit.
The OPM contains important information
about the correct installation and operation of
the BWT bestaqua 60-62:
1. Enclosed “Start-up control”- (section 14.5)
shall be completed and filed together with
the operating journal.
2. Operating journal shall be updated as
described in “Operating journal” (section
14.6).
3. Floor drain must be available in the
immediate vicinity of the RO unit.
4. The BWT bestaqua 60-62 unit removes
more than 99 % of all salts, and that is why
you need to be alert to possible
posttreatment with mixed bed or similar, if
a better water quality is requested.
5. The authorised agent takes on full
responsibility without costs for BWT who,
however, grants a 12 months guarantee
inclusive of replacement of defective spare
parts, on condition that the parts are
returned to BWT along with a specification
of the fault and stating production month /
year (RO unit no.).
6. The warranty becomes invalid, if the RO
unit is not commissioned by an authorised
BWT service technician.
7. The warranty becomes invalid, if
maintenance intervals (Chapter 14.6) are
not met.
You should read the OPM carefully before
assembling and starting up the RO unit.
Correct installation and operation forms the
basis of our warranty.
Your BWT bestaqua 60-62 is of a compact
design with integrated reservoir tank in order
to take up as little space as possible.
With its compact and finished design, your
BWT bestaqua 60-62 unit is easy to install
since all installations are preassembled and
tested in our factory.
Your BWT bestaqua 60-62 unit is furnished
with casters. That means that the RO unit can
be placed e.g. under a table and pulled out
for easy servicing.
Your BWT bestaqua 60-62 unit is furnished
with a powerful transport pump which can
supply water with a pressure and flow similar
to normal waterworks pressure and flow.
Your BWT bestaqua 60-62 unit is designed for
minimum maintenance and a long and
unproblematic operation. This, however, is on
condition that you install and maintain the RO
unit correctly.
Always read this OPM before
commissioning.
2Explanation of words
There will be a few technical explanations in
this OPM, which is described below.
Feed water: Is the water which is led
directly to the BWT bestaqua 60-62 reverse
osmosis unit and which must be desalinated.
Permeate: The treated, totally desalinated
water which is produced by the BWT
bestaqua 60-62 unit and supplied to the
reservoir tank.
Concentrate: Is the water that is led to drain.
This water contains the salts and minerals that
have been removed from the water.

EN
6
WCF (Recovery):The ratio between the
produced pure water (permeate) and the thus
required amount of feed water (soft water) is
expressed as permeate yield (WCF) or “Water
Conversion Factor“.
TDS: The amount of totally dissolved salts
measured in (mg/l).
Conductitity: Is the designation of salt
concentration of the water, measured in
(µS/cm). The lower the value, the better is
water quality.
RO: The abbreviation for Reverse Osmosis.
Membrane: Is the filter of the RO unit which
by high pressure and flow is capable of
desalinating the feed water.
Transport pump (TP-pump): Is the pump
which transports the treated water from the RO
unit reservoir to the consumer.
High pressure pump (HP-pump): Is the
pump which presses feed water through
membranes where the feed water is
desalinated.
Level switch: Is a switch, which gives a
signal when the BWT bestaqua 60-62 unit
must either be started or stopped, and it stops
the transport pump in case of dryrunning of
the reservoir tank.
Pressure transmitter: It transmits pressure
value for HP-pump and TP-pump to the control
box.
Conductitity transmitter: It transmits value
of feed water conductivity and permeate
conductivity to the control box.
RobotFlow: Automaticly adjustable valve-
module (option) ensures optimal use of feed
water depending on the feed water
conductivity.
3Function descriptions
3.1 Permeate production
The water is pressed through the RO
membrane by means of a highpressure pump.
The permeate is then led to consumption and
can e.g. be collected in a reservoir. The
concentrate (the water containing the
concentrated salts) is led to drain. The relation
between permeate/concentrate shall be
adjusted manually on the needle valve or
automaticly if the RO-unit equipped with
RobotFlow (optional).
Under normal operating conditions the RO
membranes have a long lifespan. But even
with a good feed water quality, layers of
impurities will, to a certain extent, occur and
there will be a slow reduction of the permeate
capacity.
4Positioning of the RO unit
The RO unit must be placed in a nonfreezing
environment on an even foundation so that the
water in the reservoir does not overflow when
the tank is full.
the foundation must be able to stand a load of
approx. 80 kg, which is the RO unit weight
when full.
The RO unit is furnished with casters, so if you
wish to be able to move the RO unit, you
should keep the foundation even and solid.
The outside measures of the RO unit are
(WxDxH): 350x560x736 mm, but when
positioning the RO unit you should consider
that the cover shall be demounted during
maintenance work. Either you must calculate

EN
7
with an additional 500 mm in height to be
able to lift the cover, or it should be possible
to roll the RO unit out for servicing (e.g. place
it under a table or similar)
You should also make space on the back of
the RO unit for the water installation;
especially you should take into account the
outlet hose from the RO unit.
The hose may never be bent!
Positioning of the RO unit must be done in a
way so that the air intake on the back never
gets covered.
There must also be space in front of the RO
unit, so that it is possible to freely read the
LCD. Also it should be possible to roll out the
RO unit in connection with maintenance.
In case of a stoppage, the reservoir may
overflow. Therefore there should always be a
drain in the immediate vicinity of the RO unit
so that the overflowing water does not cause
damage.
The following conditions must be fulfilled
otherwise is the installation of RO unit on your
own risk!
The floor must decline down towards a
functional floor drain from the RO unit.
The concentrate/overflow water have to
flow freely from the RO unit to drain.
5Water quality
The feed water, which is to be treated in the
BWT bestaqua 60-62 unit, must be drinking
water quality with maximum 500 mg/l TDS.
Max. feed water temperature is 25 °C. The
RO unit is adjusted at 10 °C in our factory.
The feed water may maximum contain:
* Fe: 0.05 mg/l
* Mn: 0.02 mg/l
* Cl2: 0.1 mg/l
* Turbidity: 1.0 NTU
* SDI15: 3.0
* KMnO4: 10 mg/l
If there are doubts about the feed water
composition, a water analysis must be made.
The RO unit must be connected to a feed-water
pressure of minimum 3 bar and maximum 6
bar. The quality of the treated water will be
less than 20 µS/cm at 10 °C.
6Water connections
Note! All water connections must be in
compliance with local regulations.
6.1 Connection of feed water (inlet
water)
BWT sell complete assembly kits for BWT
bestaqua 60-62.
On the feed water side you must fit a ball
valve so that the water may be cut off during
maintenance of the RO unit.
Install a ¾” flexible pressure hose on ¾”
fitting labled with “Feed water”at the back of
the RO unit. The opposite end shall be
connected to the 5µ prefilter witch is
connected to feed water supply.
The best operating result is obtained by
connecting to minimum ¾” feed-water pipe.
That reduces the drop in pressure to the RO
unit. With a too small feed-water connection,
there will be a risk of outage on the RO unit
due to lacking water pressure, e.g. when

EN
8
rinsing out the membranes at start-up of the
RO unit.
6.2 Connection of outlet hose
Start by dismounting the orange plug which is
fitted on the drain outlet fitting at the back of
the RO unit.
Install the supplied 12 mm plastic hose to
outlet.
Note! It is important that the hose is pressed
all the way down into the quickfitting (audible
“click” will sound when it is connected). The
opposite end shall be connected to drain
outlet. The hose may not be led down into the
outlet water, though, since the water may risk
getting sucked back into the RO unit during
standstill.
Note! The outlet hose may never be bent or
in any other way obstructed, as this would
damage the membrane.
6.3 Connection og overflow hose
On the back of the RO unit, on the overflow
nozzle, you shall connect a 1” plastic hose to
the floor drain or another subjacent drain. This
overflow is a safety overflow in case of fault
occurs on the level switch of the RO unit and
the reservoir tank as a consequence gets filled
to overflowing.
6.4 Connection of permeate (treated
water)
Fit a ¾" flexible pressure hose to the fitting
labled PERMEATE at the back of RO unit . The
opposite end shall be connected to the
consumer of the treated water or pipe
connection which is led to consumer of the
treated water.
Note! Totally desalinated water may speed
up corrosion. Therefore, always use non-
corrosive piping for the treated water, e.g.
stainless steel or PVC.
7Electrical connections
Note! The electrical connections must be
made in compliance with local regulations.
The electrical connection to the BWT bestaqua
60-62 unit must be as follows:
Voltage: 230 Volt-50 Hz
Fuse: 10 Amp
Max. power consumption: 1.5 kW
Colour/number-code of power cable:
Blue/2 wire: N
Brown/1 wire: L
Yellow/green wire: PE
If for some reason you need to change the
factory-mounted power cable, please cf.
Annex -14.2. Wiring Diagrams.
All internal connections in the RO unit like e.g.
pump control and level control are pre-
assembled in our factory. This means that only
the supplied power cable which is connected
to the control box must be connected to a
power plug.

EN
9
8Function buttons og display
elements
[ON/OFF] key switches the device from standby to ON/OFF when
pressed continuously for 2 sec and performs the reset of the device in
case of alarms and/or failures.
[ON/OFF] key stop/pauses the RO unit when pressed shortly
(Arrow up) key scrolls through the menu pages upward / right,
increases the value of the parameter presently shown on the display.
(Arrow down) key Scrolls through the menu pages downward / left,
decreases the value of the parameter presently shown on the display.
Confirmation key - Confirmation of the parameter presently shown on
the display.
Return key - Back to the previous menu or parameter-setting.
LED
LED for operating status and failure indication: The status LED
(green/red) shows the status of the device. Please read Annex 12.3
for details.
TP pump is delievering permeate
TP pump is paused and waiting until the reservoir is filled
TP pump is paused but ready to deliver permeate
TP pump is paused by External Stop

EN
10
8.1 Menu: Settings / GENERAL