Viessmann AQUAHOME 11-N User manual

AQUAHOME 11-N
AQUAHOME 17-N
Installation and operations manual
Water softening station
ENG

Table of contents
Basic data
4
Section I
5
1. Hydraulic assembly
5
A. Safety information
5
B. Unpacking of water softener
5
C. Checking hydraulic fittings at installation site
6
D. Selecting installation site for the device
6
E. Materials
6
F. Regeneration washings discharge connection
7
2. Basic operations
9
A. Programming the control panel
9
B. Filling the brine tank with salt
11
C. Setting the desired water hardness value on the by-pass valve
12
Section II
13
1. Control panel functions
13
A. Manual activation of regeneration process
13
B. Additional functions
14
C. Basic diagnostic data
14
D. Power outage
15
E. Error codes
15
Section III
16
1. Service activities
16
A. Refilling salt in brine tank
16
B. Salt bridges
17
C. Control of hardness of treated water
17
D. Control of water pressure in the installation
18
E. Mechanical filter operation
18
F. Control of current hour clock indications
18
2. Operational recommendations
19
3. Operation logbook
19
4. Troubleshooting table
19
Section IV
20
1. Technical specifications and dimensions
20
Chapter V
21
1. Control activities prior to contacting a service provider
21
2. Warranty card
23
3. Device commissioning protocol (original copy)
25
4. Device commissioning protocol (copy no. 1)
27
Section VI
29
1. Component drawings
29
Impact of washings from water softener regeneration to municipal sewage systems and
home sewage treatment plants
33
Conditions of Technical Inspection of operation or pressure devices, fitted in AQUAHOME
ion exchange water softeners
33
3

Tip!
Before installing the device, please read carefully
this manual and comply with all safety rules related
to commissioning and operation of the device. In
case of any questions, please inquire with the
service team of your of the device.
Basic data
Prior to connecting, commissioning and operation of the device, please fill in the following information:
MOD. NO*
SER. NO*
*Information on model number and serial number can be found on the label, accessible after lifting of
the brine tank cover.
Commissioning date
-
Water hardness
dH (German water
hardness scale)
Water pressure
bar
4

Section I
1. Hydraulic assembly
A. Safety information
Before installing and
commissioning of the water
softener, please read carefuly this
manual. Compliance with the
guidelines provided in the manual
will ensure safe and full use of the
purchase device. Failure to
comply with this manual may
result in material and health
damage.
Water softener removes from
water calcium and magnesium
cations responsible for water
hardness and it can also remove
divalent (bivalent) iron compounds
dissolved in water at the
acceptable concentration up to 0.5
mg Fe per litre. The device is not
capable of removing iron in any
other form (such as organic form)
neither is it capable of improving
the taste and smell of water.
Ambient temperature, suitable for
water softener operation, must not
be lower than 4oC and higher than
40o C.
Maximum temperature of water
that can be softened by the device
must not be higher than 49 o C.
The device can be supplied
together with a mechanical filter
(optional), which should be
installed on the water pipe
supplying water to the softener, in
accordance with the schematic
diagram shown in figure 2.
Operating voltage of the device is
28 V. Please use the transformer
that is supplied together with the
device. To avoid defects resulting
from power outage, it is
recommended to install a back-up
power supply.
In case of damage of the power
cable the transformer must be
immediately disconnected. Prior to
reconnecting the transformer,
damaged power cable must be
replaced or repaired.
Prior to removing the outer valve
cover, power supply of the device
must be unconditionally
disconnected.
Water softener must not be used
for softening of water with
abnormal physical and chemical
as well as bacteriological
parameters.
B. Unpacking of water softener
The first step is to remove all
components of the device from the
cardboard box, remove protection
styrofoam and adhesive tapes. The
device should be checked for possible
damages occurring during transport.
In case of any damage to the device
supplier must be notified immediately.
The device must be removed from the
packaging with outmost care. The
device is delivered as assembled,
ready for use unit and therefore is
rather heavy. When moved the device
should be supported “at the bottom”
and must not be dragged across the
floor. Do not turn the device upside
down, drop the device or put it on
edgy or sharp surfaces.
5
electronic panel
control
head
overflow
brine hose
cover
brine well
brine valve
anti-spill
security
salt tank
well cover
Fig. 1

C. Checking hydraulic fittings at installation site
Tap water pressure
In order for the water softener to
function properly the pressure in the
water supply network must not be
lower than 1.4 bar and higher than 8.0
bars. If water pressure is below the
minimum, pressure raising pressure
tank must be used; if water pressure
exceeds the maximum value,
pressure regulator (pressure reducing
valve) must be installed.
Important notice!
If during daytime water pressure is
high, it is very likely that during night
time it will exceed the maximum value
of 8.0 bars. In this case, we
recommend to install a pressure
regulator. It is recommended to fit
pressure gauges on the installation, in
accordance with the schematic
diagram (figure 2), in order to control
operating water pressure in the
installation.
Water flow rate
In order for the water softener to
function properly the minimum water
flow rate at the water inlet should be
11.0 litres per minute.
D. Selecting installation site for the device
The water softener should be
located as close as possible to
hydrophore (in case of supplying
water from private well [intake]) or
water meter measuring the whole
water in the household (in case of
supplying the household with tap
water). The device should be
located in the immediate vicinity of
the outlet drain.
When installing the device
upstream from the water heater (or
boiler unit), make sure that the
temperature of water at the
connection point does not exceed
490C. It is recommended that a
check valve is fitted between the
water softener and the water heater
(or boiler unit) in order to prevent
hot water backflow to the water
softener. Excessively hot water may
cause damage of control valve
elements as well as the ion
exchange resin.
Make sure that the valve for water
used outside of the house (such as
water used for garden watering) is
installed upstream from the water
softener. Softening of water used
outside of the house is not cost
effective (unless necessary).
Installation site of the water softener
must not be exposed to freezing. If
frozen, the water softener will be
damaged. Any damage resulting
from freezing is not covered by the
warranty.
The water softener is powered with
28 V. The transformer and power
cable are provided along with the
device. Earthed power socket for
the water softener should be
located within the immediate vicinity
of the device and should be
protected against rain and sub-zero
temperatures. The water must be
always connected to the power
supply source; the power socket
must not be fitted with a controller
that could be incidentally switched
off.
E. Materials
Before commencing installation of the device, it is
important to check relevant connection of inflow
and outflow of water to and from the water
softener. The water “inflow” connection is located
on the right side of the device and water “outflow”
connection on its left side, when facing the device
(fig. 3).
6

Hydraulic connection of the water softener should be
implemented in accordance with a specimen
connection diagram shown in fig. 2. The water
softener is fitted with a by-pass valve with fitting
elements as well as a washings discharge hose.
Hydraulic installation accessories such as valves,
pressure gauges, water sampling valve etc. are not,
as standard, supplied with the device and should be
provided by the person implementing the installation.
F. Regeneration washings discharge connection
1. Regeneration washings
discharge connection.
Use the hose supplied together
with the device to connect the
installation of washings discharge
from the water softener. Place one
end of the hose on the washings
discharge stub pipe, located at the
rear part of the control head, and
place the other end of the hose in
the outlet drain (fig. 3). Make sure
to provide at least 4 cm air gap
between the end of the hose and
the outlet drain. This gap is
needed to prevent backflow of
sewer water into the water
softener.
Install the hose in a manner
preventing its movement during
intense flow of washings. The
hose must be not be bent, twisted
or punctured.
The hose must be located below
the outflow stub pipe from the
control valve.
2. Connection of flow elbow pipe of
the brine tank.
place the rubber connecting piece
in the hole of brine tank (from the
bottom) in such way that part of
the connecting piece is located
inside and part outside of the
brine tank
7
raw water
garden
water
Soft water
VALVE
VALVE
VALVE
VALVE
CHECK
VALVE
SAMPLING
VALVE
SAMPLING
VALVE
CONTROL
VAVLE
DEVICE BODY
WASHINGS OUTFLOW
PRE-FILTER
MANOMETER
MANOMETER
MANOMETER
Fig. 2

insert thick end of the elbow pipe
to the connection piece from the
outer side of the brine tank
the discharge hose - connection
point diameter 3/8”, outer thread
(not supplied with the device) -
can be connected in the way
identical to the one referred in
point 1.
Important notice:
- overflow hose of the brine tank
serves only as additional
safety feature in case the filling
of the brine tank with water is
not ended in accordance to the
program.
- no part on the overflow hose
can be placed above the
outflow level (fig. 3)
- the overflow hose of the brine
tank must not be connected to
the outflow stub pipe of the
control valve (see point 1
above).
Fig. 3
8
Treated
water
Fastening clamps
Main water flow
3/4’’ connection
pipe
3/4’’ joint
3/4’’ nut
Copper pipe
Seal
Washings
hose
BY-PASS
VALVE
Seal and nut
Copper pipe
3/4’’ connection
pipe
3/4’’ joint
Hard
water
Outlet
Inlet
Transformer
For the
control head
Fig. 3
Ant-spill security hose
(not included in the
delivery)
Discharge drain
4 cm gap
CAUTION: The washings hose and anti-spill
security hose must be fastened to the discharge
drain

2. Basic operations
A. Programming the control panel
After connecting the transformer
to the power socket, the display
screen will show the code of the
given device model and test
number (J2.0 or similar) for 3
seconds.
AQUAHOME 11-N should feature
the 11L code, while AQUAHOME
17-N should feature the 17L code
Then, the display screen will show
the PRESENT TIME caption and
the time 12:00 will start flashing in
the bottom left corner.
It is necessary to deactivate and
activate the power supply to
confirm the correctness of the
code. If the code displayed on the
screen is different than expected,
please contact the supplier’s
service team.
Audio signaller (BIP):the signaller
will activate each time the button
is pressed. A single audio signal
indicates one change on the
display screen. Series of audio
signals indicate wrong button
being pushed and the need to
push a different button.
Setting Time
If the PRESENT TIME information was not
displayed, it is necessary to press the “OK”
button (fig. 4) until the information is
displayed. In order to set the time, press ▲to
move forward or ▼ to go backwards.
If a twelve-hour clock is set, the “ante mridiem
(AM) caption will appear for the time between
000 and 1159 and the “post meridiem” (PM) will
appear for the time between 1200 and 2359.
With each pressing of the ▲or ▼ buttongs,
the time will increase or decrease in one
minute increments. If any of the buttons
remains pressed, the time will change at a
faster rate.
9
Fig. 4

Programming water hardness
Single press of the “OK” button (in the Time
mode) will cause the transition to the
HARDNESS mode; the value flashing on the
display screen should be 25 (default value).
Then, it is necessary to code the hardness of
used water in grains per American gallon -
gpg (water hardness expressed in, for
example, the German on should be multiplied
by 1.036). The water hardness can be
expressed in different units. Below is the table
showing water hardness units most commonly
used in our country:
Hardness unit
mg CaCO3/l
French degree (of)
German degree (on)
gpg
1 mg CaCO3/l
1
0.1
0.056
0.058
1French degree
(of)
10
1
0.56
0.58
1German
degree (on)
17.8
1.78
1
1.036
1 gpg
17.2
1.72
0.96
1
In case when the results of the
physical and chemical analysis
are not available, water hardness
information should be obtained
from local water supply company
or from relevant regional office of
the State Sanitary Inspectorate or
it should be self determined with
the use of a test which can be
ordered from the vendor. Please
enter the results obtained on page
4 of this manual as well as on a
separate label, which should be
placed under the brine tank cover
with the use of adhesive tape.
If raw water contains iron in
concentration exceeding 0.2 mg/l,
please use adjusted water
hardness instead of water
hardness. It is calculated in the
following manner:
Adjusted hardness [odH] = hardness [odH] + 4.8  iron
quantity in mg Fe/l
Enter the water hardness number
or adjusted water hardness
number (expressed in gpg) to the
water softener software as
operational water hardness. In
order to enter the water hardness
number press and hold ▲or ▼
until the relevant number appears
on the display screen. Pressing ▼
will reduce the displayed water
hardness value to 1. Pressing ▲
will increase the displayed water
hardness value to the maximum
value for the given device.
Between water hardness values of
1 and 25, each pressing of ▲or
▼ will respectively increase or
reduce the water hardness value
in one unit increments. The value
increases or decreases by 5 units
in the range between 25 and the
maximum value. If the button
remains pressed, the value will
change twice in one second.
Programming regeneration hour
Single press of the “OK”
button (in Hardness mode) will
cause the transition to the
RECHARGE TIME mode; the
value flashing on the display
screen should be 02:00 (2 a.m.)
as default value.
If this setting is confirmed (by
pressing the “OK” button), the
water softener will activate the
regeneration process at 2 a.m.
Due to water consumption
reduced to minimum at night, 2:00
a.m. is the optimum regeneration
hour.
In order to change the
regeneration hour settings, press
10

▲or ▼ to set the new start time
for the regeneration process. If a
twelve-hour clock is set, please
take note that the “ante mridiem
(AM) caption indicates the time
between 0000 and 1159 and the
“post meridiem” (PM) indicates the
time between 1200 and 2359.
Pressing the “OK” button
confirms the changes introduced.
With each pressing of one of the
▲or ▼ buttons, the time will
increase or decrease in one unit
increment. If the button remains
pressed, the time will change by
two units within one second.
Other functions of the control panel are
described in section II.
B. Filling the brine tank with salt
Regeneration of the ion exchange resin is done with
the use of brine or in other words - aqueous salt
solution. The process utilises special regenerative
salt in tablets. The brine tank is filled with salt tablets
after lifting the brine tank cover. For wet (humid)
premises, it is recommended to only half fill the brine
tank and refill it more often. The above
recommendation results from the possibility of
formation of so called salt bridges (fig. 6). For
premises with standard humidity, the brine tank can
be filled to full, i.e. up to the level of the brine valve
well height. During normal operation of the device
the control valve allows certain volume of water into
the brine tank in order to generate aqueous salt
solution that is later used for regeneration of the
medium.
Due to specific requirements concerning the quality
of the regeneration agent, only regeneration salt
approved by the water softener manufacturer should
be used (regeneration salt). Use of edible salt is not
recommended.
Prior to filling the brine tank with salt, make sure that
the cover of brine valve cover is tightly closed. No
salt tablet should be allowed to this part of the
device.
The brine tank capacity is provided in section IV -
“Dimensions and technical specifications”.
Upon filling the brine tank with salt, the regeneration
process should be activated manually. Activities to
be performed for the manual activation of the
regeneration process are described in section II.
The device is ready for use once the regeneration
process is complete.
11

C. Setting the desired water hardness number of the by-pass valve
The standard by-pass valve, fitted on
the water softener, features a water
hardness adjusting knob (fig. 5). The
water hardness adjusting knob is used
to adjust the hardness of softened
water. For households it is
recommended to use water with
hardness in the range between 3 and 6
degrees (according to the German
water hardness scale). Prior to any
adjustment, loosen the hex nut of the
water hardness adjusting knob (turning
it counter-clockwise) in order to unlock
it and set it in motion. In order to
increase the water hardness value in
the softened water, turn the water
hardness adjusting knob counter-
clockwise while holding the by-pass
valve handle. From fully closed position
of the water hardness adjusting knob,
the water hardness value can be
increased with the maximum of six full
turns. Exceeding the maximum of 6
counter-clock turns may result in the
depressurization and water leak from
the by-pass valve. It is necessary to
check the hardness of the output water.
If the hardness value is too high in
relation to the desired value, it is
necessary to turn the knob in the
opposite direction while holding the
piston handle. Once the desired
hardness is set, the water hardness
adjusting knob may be locked in place
by tightening the hex nut (turning it
clockwise) until stop. Make sure that
each time the by-pass valve is set in
the by-pass position (i.e. with piston
handle fully pushed in), the water
hardness adjusting knob must be fully
closed (turn it clockwise until stop).
Fig. 5
12
Extended
piston
handle
Soft water
outlet
Hard water
inlet
Change in the
direction of flow of the
hard water part
controlled via the
hardness adjusting
knob setting
Softener valve
outlet opening
Softener
valve inlet
opening
Soft water
outlet
Soft water
inlet
Inserted piston
handle
Hardness adjusting knob
Hex nut
Turn clockwise
to lock the hardness
adjusting knob,
counter-clockwise to
unlock the knob
OPERATING POSITION
(Normal device operation)
BY-PASS POSITION
Hardness adjusting knob
Turn counter-clockwise to
increase the water hardness
value in the treated water,
clockwise to decrease the water
hardness value

Section II
1. Control panel functions
A. Manual activation of regeneration process
During operation of the water softener, it
might be necessary to commence additional
manual regeneration. Such additional
regeneration process is required when:
actual water usage exceeds the planned
water usage (e.g. due to a visit of guests).
Such situation poses a threat that the resin’s
ion exchange capacity will be exhausted
before the device activates the regeneration
process automatically,
the brine tank is short on salt (the brine
tank was not refilled with salt) - the brine
tank must be immediately topped up with
salt,
it is the first operation of the device
(commissioning of the device).
Immediate regeneration
Press the button (fig. 4) and hold
it until the display screen shows a
flashing caption reading RECHARGE
NOW. The first phase of the
regeneration process will begin - filling
the brine tank with water. Subsequent
phases will be activated automatically.
Upon completion of the regeneration
process, the device’s water softening
capacity will be restored.
Regenerate tonight
Press the button (fig. 4). The
RECHARGE TONIGHT caption will
begin flashing. The regeneration
process will begin on the preset hour
(2.00 AM as default). In order to
cancel the regeneration process, it is
once more necessary to press (but
not to hold) the button. The
RECHARGE TONIGHT caption will
disappear from the display screen.
Important notice!
The device does not generate
softened water during the course of
the regeneration process.
13

B. Additional functions
Programming the maximum period
between regenerations in days
during water uptake idle period
Automatic regeneration during water
uptake idle period helps maintaining
microbiological cleanliness of the
medium (during water uptake idle
period the medium may become
inhabited by microorganisms and
bacteria). Press and hold the “OK”
button until the display shows the “000 -
- ” caption. Then, press (not hold) the
“OK” button again until the display
shows the flashing AUTO caption.With
factory settings the (AUTO) function will
be inactive, which means that the
device will not regenerate during the
water uptake idle period. To activate it,
press ▲or ▼ until obtaining the
required value. The available range of
settings is between 1 and 15 days
(DAY).Press the “OK” button. The
display screen will show the
RECHARGE caption, while the 97%
and OFF captions will flash alternately.
Automatic activation of regeneration
process when the resin’s ion
exchange capacity of the resin has
been used in 97%
The settings of the aforementioned
function may only be adjusted by the
manufacturer’s or supplier’s service
team.
With factory settings, the automatic
activation of regeneration after the
usage of the resin’s ion exchange
capacity in 97% is deactivated (OFF).
When activated (the display screen will
show the RECHARGE caption and,
while the 97% and ON captions will
flash alternately), the device will
commence regeneration when the
resin’s ion exchange capacity is used in
97%, regardless of the time of day.
Press the “OK” button. The display
screen will show the TIME caption as
well as the flashing 24 HR or 12 HR
caption.
Setting the time mode (12-hour clock
or 24-hour clock)
In order to change the 24-hour clock to
12-hour clock or vice versa, press ▲or
▼ to obtain the desired value.
Press the “OK” button.
Setting the backwash and fast rinse
duration time
The display screen will show the TIME
caption as well as, for example, the
flashing bA or 3 caption. This means
that the backwash duration time will
amount to 3 minutes. When the “OK”
button is pressed again, the display
screen will show the TIME caption as
well as, for example, the flashing FR
and 1 captions. This means that the
fast rinse duration time will amount to 1
minute. Press the “OK” button to return
to the main screen.
The settings of the duration of the
aforementioned regeneration cycles
may only be adjusted by the
manufacturer’s or supplier’s service
team.
C. Basic diagnostic data
Treated water flow indicator
The indicator enables diagnostics of
the device’s treated water flow counter.
It also enables reading the flow rate of
the flowing treated water.
Press and hold the “OK” button until
the display shows the “000 - - ”
caption. If the water flows through the
device, the display screen will show
altering values in the range between
000 and 199. The value of 199
appearing on the display screen will
indicate that the device generated 1
gallon (3.78 litres) of treated water.
Upon exceeding the number of 199,
the counter will resume measuring of
subsequent gallon of treated water
(range between 000 and 199).
Press the “OK” button multiple times
until the display screen shows the
current time to return to the main
screen.
Activation date memory
Press and hold the “OK” button until
the display shows the “000 - - ”
caption. Press and hold ▲until the
display screen shows a digit and the
bottom of the screen shows the TIME
14

caption. The digit will indicate the
number of days since the
commissioning of the water softener.
When the ▲button is released, the
display screen will once again show
the “000 - - ” caption. Press the “OK”
button multiple times until the display
screen shows the current time to return
to the main screen.
Regeneration counter
Press and hold the “OK” button until
the display shows the “000 - - ”
caption. When the ▼ button is
pressed, the display screen shows a
digit and the bottom of the screen
shows the RECHARGE caption. The
digit will indicate the number of
regenerations carried out by the water
softener since the device’s
commissioning.
When the ▲ button is released, the
display screen will once again show
the “000 - - ” caption. Press the “OK”
button multiple times until the display
screen shows the current time to
return to the main screen.
D. Power outage
If electrical power to the water softener is
lost, the display screen will turn off, but the
microprocessor will keep all settings for
several hours. When electrical power is
restored, verify and reset the time if it is
flashing or is incorrect. The programmed
values of the water hardness and the hour of
the regeneration process’s activation should
never be reset unless a change is desired.
Even if the time caption displayed after a
long period of power interruption is incorrect,
the device still functions properly and treats
water. The incorrect time will result in the
regeneration process being activated at a
wrong hour until the time caption is reset to
the correct one.
E. Error codes
An error code may appear on the display
screen whenever any of the electronic
components of the device malfunctions. If
the display screen shows an error code
instead of the current time, seek assistance
of an authorised service provider.
15

Section III
1. Service activities
The operation of the water softener is
entirely automatic.
The basic maintenance activities for
which the user of the water softener is
responsible, include:
control of the level of salt in the
brine tank - once every week,
periodical refill of regeneration salt
if it requires being topped up,
control of the hardness of water
treated by the water softener -
once every week
control of the water pressure in
the installation (control of installed
pressure gauges) - once every
two weeks,
control of the pre-filter’s cartridge
cleanliness, periodical
replacement of the cartridge
and/or control of the pressure
upstream and downstream of the
pre-filter - once a week or two
weeks,
control of the clock indications in
terms of the current hour and
possible resetting of clock
indications (resetting time - see
above).
Important notice!
Due to specific requirements
concerning the quality of the
regeneration agent, only regeneration
salt approved by the water softener
manufacturer should be used
(regeneration salt in tablets).
A. Refilling salt in brine tank
The control of the level of salt in the tank is a basic
maintenance activity during the use of the softener. The
activity should be carried out once a week. If the tank is
only 1/3 full, it is necessary to refill the salt up to the
brine valve well height. In case of lack of salt in the
tank, the ion exchange resin will not regenerate and the
device will not treat the water.
If possible, refill the regeneration salt in packages (25
kg). When refilling regeneration salt, make sure to
prevent any contaminants from penetrating into the
brine tank. In case the brine tank is contaminated, rinse
the tank with clean water. Also make sure that there are
no regeneration salt tablets in the brine valve well. For
this purpose, refill the brine tank with tablets only when
the brine valve well is covered (with a special cover).
16

B. Salt bridges
This phenomenon occurs when the
softener is installed in premises with
high levels of humidity. It can also
be caused by the use of
regeneration salt with wrong
parameters. A salt bridge forms on
the water surface and creates an
empty space between water and salt
and prevents their contact, which is
why the salt does not dissolve in the
water and no brine is created. This
prevents the regeneration of resin. If
the brine tank is full of salt, it is
difficult to verify the presence of a
salt bridge. The surface may feature
a normal layer of salt, but an empty
space may be present half way. In
order to determine whether or not a
salt bridge was created, proceed as
follows: use a stick (such as broom
handle) and place it near the device
(see figure no. 6). Mark a reference
point on the broom stick, 2.5-5 cm
below the edge of the brine tank.
Then push the broom insert the
broom stick into the brine tank to its
bottom. If stronger resistance can be
felt on the broom stick before it strikes
the tank bottom, it will be most likely a
salt bridge. Push the broom stick into
the salt bridge in a number of spots,
this way breaking the bridge. Never
break the salt bridge by pounding on
the walls of the brine tank. It may
damage the tank.
If the use of wrong kind of salt
resulted in the salt bridge, remove it
from the brine tank, then carefully
rinse the tank and refill it with salt of
appropriate quality.
C. Control of hardness of treated water
More frequent control of hardness of treated
water (once per two days) is required in the
initial period of operation of the water softener
(during the initial 10 days). The water
hardness value depends on the setting of the
mixing valve. For households the water
hardness value should be set in the range
between 3 and 6, according to the German
water hardness scale.
Following that initial period, the water
hardness parameter should be checked once
every two weeks. Enter the results of the
water hardness measurement to the operation
log book (see page 26). The instructions
Fig. 6
17
Insert a stick into the tank
to reach the salt bridge and
break it
Pen mark
Stick, e.g.
broom stick
Salt
Salt bridge
Water level
2.5 –5 cm

concerning the carrying out of the water
hardness measurement are included in
relevant water hardness tests (available at the
water softener’s supplier or manufacturer).
D. Control of water pressure in the installation
Pay attention to the value of feed
water pressure during operation of the
water softener. If the pressure of feed
water drops below 1.4 bar, determine
the cause of the drop and remove it. If
the pressure of feed water exceeds
8.0 bars, install a relevant pressure
reducer in the water feed system.
Please bear in mind that the control
program (including the conditions of
the automatic REGENERATION
process) was adopted for the
pressure value of 1.4 to 8.0 bars.
Avoid water pressure hammers
during the device operation.
E. Mechanical filter operation
In order to secure the proper
operation of the water softener, the
mechanical filter, supplied together
with the device, must be installed on
the raw water pipework (fig. 2). The
mechanical filter is designed to
protect the control head as well as
the medium against mechanical
contamination. Observation of the
filter cartridge’s (water cleaning
medium) contamination is carried out
by visual inspection. An additional
element enabling control of the filter
condition is monitoring of water
pressure upstream and downstream
of the filter. In case of using a filter
with a replaceable cartridge, provided
that the cartridge is worn
(contaminated), unscrew the filter
sump holding the cartridge, replace it
with a new filter cartridge and tighten
the sump with the new filter cartridge
in the filter assembly. Please bear in
mind to cut off water upstream of the
filter before carrying out the filter
cartridge replacement.
Important notice!
The filter cartridge must not be
rinsed, cleaned or regenerated in any
manner.
In case of using a filter with a
backwash feature, follow the user
manual provided together with the
filter.
Operating a filter with an overused
filter cartridge may undermine the
water quality and may cause damage
to the water softener.
F. Control of current hour clock indications
Control of the time indications shown
on the display screen of the water
softener should be carried out at least
once every two weeks. It will prevent
any movements in time of
commencing the regeneration
process. To eliminate any possible
difference between current time and
the time displayed by the device,
follow the guidelines provided on
page 9(Programming of the control
panel).
18

2. Operational recommendations
Make sure to protect the device
during operation against:
excessive dusting of the water
softener installation site,
too low and too high ambient
temperature in the vicinity of the
device - the temperature must
not drop below 4 oC and must not
exceed 40 oC,
incidental possibility of a sudden
heat source occurrence,
incidental possibility of hot water
backflow (with temperature
exceeding 49 oC) - in case when
such situation may not be entirely
avoided, install a check valve.
3. Operation logbook
An operation log book should be maintained during the operation of the water softener, in accordance
with a sample log book provided below:
No.
Date
Time
Inflow water hardness [odH]
Remarks
1
2
3
4
5
4. Troubleshooting table
Problem
Cause
Method of removal
Water softener
supplies water that
is too hard or
entirely unsoftened
No salt in the tank
Refill the salt
Activate manual regeneration
Power outage
Restore power supply Check the
displayed time Activate manual
regeneration
Occluded outflow of sewage from
the valve
Restore patency of the washings
discharge hose
Water softener
supplies water; salt
level remains
unchanged
Salt bridge has been formed in the
brine tank
Remove the salt bridge
The by-pass valve is in the by-pass
position
Set the by-pass valve in the service
position
Water is
periodically hard
Incorrectly set time
Set the correct time
Too low raw water hardness value
has been programmed
Determine the water hardness and
program the correct value
Incorrect code for the given model
of water softener
Contact the supplier’s service team
Soft water is fed during the
regeneration process
Such situation must be avoided. Check
the control panel settings
Uncontrolled water leakage.
Excessive water consumption
Check all water intake points Remove
all water leakage
19

Section IV
1. Technical specifications and dimensions
Water softener parameters
AQUAHOME 11-N
AQUAHOME 17-N
Maximum water flow rate (m3/h)
Operating pressure range (bar)
Water temperature range (°C)
Maximum water hardness (°dH)
Resin quantity (l)
Maximum ion exchange capacity (m3x °dH)
Max. water output between regenerations at 18°dH (l)
Estimated salt consumption per regeneration (kg)
Estimated water consumption per regeneration (l)
Connection diameter (inch)
1.1
1.4 - 8.0
4 - 49
48.0
11
34
1,900
1.0
57
1
1.9
1.4 - 8.0
4 - 49
48.0
17
62
3,400
2.0
60
1
Regenerative salt
Recommended salt types
regenerative salt in tablets
Dimensions
AQUAHOME 11-N
AQUAHOME 17-N
A
Total height
65.0 cm
82.2 cm
B
Height of water
connections
52.3 cm
69.5 cm
-
Depth
Width
48.0 cm
30.0 cm
48.0 cm
30.2 cm
-
Inlet / outlet spacing
8.6 cm
8.6 cm
20
INLET
OUTLET
8.6 cm
48.0 cm
30.2 cm
Presented chart illustrates the
relationship between the ion
exchange capacity of the deposit
depending on the amount of salt
used in the process of regeneration,
and productivity of salt in different
areas of recovery capacity. The unit
sets the regeneration frequency on
the basis of chart data - it minimizes
the consumption of salt during resin
regeneration