Ecosoft CROSS 90 User guide

Installer and user guide for CROSS 90 direct ow
reverse osmosis lter
Інструкція з підключення та експлуатації
прямоточного фільтру зворотного осмосу CROSS 90

2
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
CONTENTS
1. Purpose of the product 3
2. Specicaons and components 4
2.1 Specicaons and requirements 4
2.2 Water quality 5
2.2.1 Supply water quality requirements 5
2.2.2 Water quality aer lter 5
2.3 Reverse osmosis lter components 6
2.4 Reverse osmosis lter indicators 7
3. Filter installaon 7
3.1 Before commencing installaon 7
3.2 Connecon diagram 8
3.3 Installaon procedure 8
3.4 First me use 13
4. Steps aer installaon 13
5. Usage 14
5.1 Parts of the lter and their recommended change out rates 14
5.2 The procedure for cartridges replacing 14
5.3 Filter lifeme display 15
5.4 Water quality display 16
5.5 System operaon modes 16
5.6 SMART features 17
6. Sanizaon of reverse osmosis lter 18
7. Troubleshoong 20
8. Service record 21
9. Environmental and health safety 22
10. Purchasing 22
11. Transportaon and storage 23
12. Warranty 23

3
EN
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
DEAR CUSTOMER!
1. PURPOSE OF THE PRODUCT
Thank you for choosing our products.
We want you and your family to enjoy clean drinking water. With Ecoso lter you will forget
the trouble of using large boles. Pure spring water for drinking, cooking and making drinks will
always be at hand. Please read this instrucon manual and check validity of the warranty card
before using the system.
Reverse osmosis is by far the most advanced technology of water puricaon in use today. Special
semipermeable membrane structure similar in its properes to the membrane of a living cell
is capable of purifying drinking water from virtually all harmful impuries (see Figure 1). The
membrane can be conceived of as having ny pores, 200 mes smaller than viruses and 4000
mes smaller than bacteria. Domesc water lters with reverse osmosis membranes harness the
principle of body’s metabolism on a cellular level. Only molecules of certain size can penetrate
cellular membrane.
Direct ow reverse osmosis lter CROSS 90 is a four-stage in three steps ltraon unit with
three cartridges funconing as follows (see secon (2.3) for reference numbers). Filter rack is
connected to cold water supply with feed water adapter (4). White tube (3/8”) carries water from
feed valve through low pressure switch and inlet solenoid valve to the CF lter cartridge. Incoming
water then passes through pre-lter cartridge (7). Pre-lter cartridge is a complex cartridge with
(2) stages inside. It is designed to remove solids (such as rust, sand, silt, etc), residual chlorine,
and organochlorines from water. Aer undergoing pre-treatment steps in the pre-lter, water
enters into the third (and the most important) stage: reverse osmosis membrane (7) contained in
a cartridge RO. One of the two outlets supplies puried water (permeate), and the other carries
away water with rejected impuries (concentrate). The membrane puries water at the molecular
level by passing through its pores only the water molecules and the molecules of dissolved oxygen.
Tap water under
pressure
Figure 1
Molecules of smaller
size, pure water
Larger molecules
Concentrate
for disposal
Membrane
Water
molecules

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INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
1. PURPOSE OF THE PRODUCT
№ Parameter Value
1Main pressure, bar 1-4 *
2Feed water temperature, °C +5…+30**
3Flow capacity, l/min 1,5
4Electrical rang 230 V, 50 Hz
5Weight of the system, kg 11
6Ambient temperature, °C +5…+40
7Water supply connecon ½″ thread
8Filter dimensions, H × W × D, mm 458 x 140 x 435
2. SPECIFICATIONS AND COMPONENTS
2.1 SPECIFICATIONS AND REQUIREMENTS
Inside the membrane, water is separated into two streams: concentrate, which is discharged into
drain, and permeate, which enters next step – post-lter (7).
Aer opening the puried water valve (3), the pressure in the system drops and the high pressure
switch is acvated, opening the inlet valve and starng the pump, automacally resuming the
ow of water through the pretreatment cartridge to the membrane. Aer opening the puried
water valve (3), the pressure in the system drops and the high pressure switch is acvated,
opening the inlet valve and starng the pump, automacally resuming the ow of water through
the pretreatment cartridge to the membrane. The puried water aer the membrane enters
the fourth stage of puricaon — the CB carbon post-lter, designed for nal water puricaon.
The puried water aer the membrane enters the fourth stage of puricaon — the CB carbon
post-lter, designed for nal water puricaon. It contains extruded acvated carbon. This lter
improves the taste and smell of the puried water. This lter is direct-ow, so no water storage
tank is required. With a capacity of 600 GPD (90 l/h), it takes only 8 seconds to ll a 200 ml glass.
* If supply water pressure is below required value, purchase pumped model or t your exisng
lter with booster pump. If the pressure in the water system is above the limit, it is necessary to
install a pressure regulator on the main pipe. If pressure in tank bladder is outside this range, it is
necessary to pump up or release the pressure unl it conforms to the requirement.
** If supply water temperature is up in the range of +20…+30 °C, rejecon of impuries will be
decreased and system capacity increased, bringing about an increase in TDS. Using the product
with supply water temperature in excess of +30 °C is not recommended.

5
EN
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
№ Index Value**
1pH 6.5-8.5
2TDS <1500 ppm
3Hardness <500 ppm CaCO3
(<28 °dH)
4Free chlorine <0.5 ppm
5Iron <0.3 ppm
№ Index Value
1pH 5.5-6.5
2TDS 5-15 ppm
3Calcium <2 ppm
4Magnesium <1 ppm
5Sodium + Potassium <5 ppm
№ Index Value**
6Manganese <0.1 ppm
7Chemical oxygen
demand <5 ppm O2
8Total bacterial count
(TBC) <50 CFU/mL
9E. coli ter <3
2. SPECIFICATIONS AND COMPONENTS
2.2 WATER QUALITY
2.2.1 SUPPLY WATER QUALITY REQUIREMENTS*
2.2.2 WATER QUALITY AFTER FILTER*
Do not use with water that is microbiologically unsafe or of unknown quality without adequate
disinfecon before or aer the system.
* If water supply does not meet the requirements, service life of membrane and/or pre-lter
cartridges may be shortened.
** If your home is supplied with raw well water, perform laboratory test of your water before
in- stalling a reverse osmosis lter. If any of your water indices exceed the limit, consider using a
water treatment system to correct supply water quality. Refer to water treatment specialists or
companies for advice and proper equipment selecon.
* Values are determined under the following
condions: temperature of supply water is
25 °C, supply water quality and operaon
condions correspond to manufacturer’s
requirements.

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INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
2. SPECIFICATIONS AND COMPONENTS
1) Filter rack
4) Feed water
adapter with valve
7) Set of cartridges
CF - CPVDFRO
RO - CSVRO600DFRO
CB - CHVCBDFRO
2) Power adaptor 3) Drinking
water faucet
6) Drain saddle5) Set of colored tubes
2.3 REVERSE OSMOSIS FILTER COMPONENTS
The manufacturer reserves the right
to modify product design or specic
components if such modicaon does
not entail deterioraon of consumer
properes of the product.

7
EN
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
2. SPECIFICATIONS AND COMPONENTS
3. FILTER INSTALLATION
2.4 REVERSE OSMOSIS FILTER INDICATORS
1 – System performance indicator - making water indicaon, water quality indicaon, faults
indicaon, ushing indicaon
2 – RO replacement lter lifeme indicator
3 – CB replacement lter lifeme indicator
4 – CF replacement lter lifeme indicator
5 – Faucet indicator - making water indicaon, faults indicaon, replacement indicaon, ushing
indicaon
5
Before installing a domesc reverse osmosis lter please carefully read this instrucon.
This system must be installed in compliance with local codes.
3.1 BEFORE COMMENCING INSTALLATION
1) Check that all parts are in the package. Do not open the plasc bags with lter parts before you
make sure everything is in place to be able to return faulty/incomplete package.
2) Check conformity of your local variables to requirements specicaons:
Main pressure* Supply water temperature*
Check water pressure at mains before install-
ing the product. Compare to the requirements
in paragraph (2.1).
Check temperature of supply water. Compare
to the requirements in paragraph (2.1).
*Refer to paragraph 2.1 for recommended measures in case any of the above variables
does not meet the requirements.
1
2
3
4

8
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
— verify that your product is as specied in paragraph 2.1;
— verify that your supply water quality** meets the requirements in paragraph 2.2.
**If supply water quality does not meet the requirements, it is necessary to consult with a
water treatment specialist.
3) Before installing the system, make sure there is enough space for the lter rack under the sink.
4) Electrical safety noce: This appliance should be connected into a circuit with an RCB installed.
Please note voltage requirements.
5) Install the system per the guidelines of this manual.
6) The unit is to be supplied with single-phase 230 VAC, 50 Hz electrical power.
The unit is supplied with power cord and can be connected to a properly installed IEC 60884-1
compliant socket. Electrical specicaon of the unit can be found on manufacturer’s factory
scker. That system and installaon must comply with state and local laws and regulaons.
3.2 СONNECTION DIAGRAM
3.3 INSTALLATION PROCEDURE
Wash your hands thoroughly with an-bacterial soap before handling tubes, cartridges, and
membrane.
This system should desirably be installed in places protected from direct sunlight and away
from heang appliances.
3. FILTER INSTALLATION
3/8” White pipe
1/4” Red pipe
1/4” White pipe

9
EN
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
1. Remove the reverse osmosis system from its packaging and check the equipment.
2. Shut o water supply in your kitchen or whole home and open water tap where you are about
to install the system (on your kitchen sink) for 1 minute to relieve pressure in the system, and
then close it.
3. Screw the feed water adapter with valve (4) into the cold water plumbing.
Connecons size is selected to t most common size ½ inch pipe. If your pipe is of another size,
prepare an appropriate adapter.
4. Unscrew the compression nut from the feed valve (4) and put it on the 3/8” white tube. Push
the white tube on the end of feed valve’s ng and screw on the compression nut. Connect the
free end of the 3/8” white tube with the quick connect ng “Inlet” on the connecon panel of
the rack. Insert the 3/8“ quick coupling lock plate between the quick connect and the claw of the
water inlet pipe.
3/8” PE pipe in
proper length
3/8” quick coupling
lock plate
3. FILTER INSTALLATION

10
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
5. Connect the drain saddle (6) with drain pipe from
the kitchen sink. The drain saddle is compable
with most standard drain pipes. Drill a hole of 5.0
mm (0.2”) diameter in the kitchen sink drain pipe,
apply rubber gasket with scky base (included in
the package).
Install the drain saddle (6) on the drain pipe over
the hole. Tighten screws on drain saddle with a
screwdriver. Insert red tube into the connecon on
the clamp. Connect the other end of the red tube
with concentrate outlet “Waste” on the connecon
panel of the rack. Insert 1/4” quick coupling lock
plate between quick coupling and jack catch of pipe.
6. Connect one end of 1/4” white tube to
the “Filtered” output on the connecon
panel of the rack. Insert the 1/4”quick
coupling lock plate between the quick
connect and the claw of the water inlet
pipe.
CAUTION! If RO systems do not use air gap faucets, it is required that they be plumbed in with
a physical air gap between the waste water outlet and the drain. This is so if the drain backs
up, sewage will not push up into the RO system.
1/4” quick coupling
lock plate
1/4” wihte PE pipe in proper lenght
Sewage outlet
1/4” quick coupling
lock plate
1/4” wihte PE pipe
in proper lenght
3. FILTER INSTALLATION

11
EN
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
7. Installaon of the faucet.
7.1. To install drinking water faucet (3) drill 12.5
mm (1/2”) diameter hole for single way tap in a
convenient locaon at the sink or countertop.
Cauon! metal shavings can damage your
unit, remove them carefully as soon as you
have drilled the hole. If the mounng surface
is ceramic or stone, you may need a special
carbide drill.
Mount the faucet on the sink or countertop as
shown in the gure. Upper gasket, gasket ring,
below gasket and installaon knob on the faucet
shank must x the faucet rmly on the surface.
7.2 Push the direct quick coupling as deeply as
possible to the boom of the faucet’s inlet water
threaded pipe and insert the xing clip.
7.3 Aer the faucet is installed, insert the other
end of the 1/4” white tube of pure water pipe
connected to the rack into the quick connecon
of the faucet and insert the xing clip.
7.4 Take the faucet aviaon connector and insert
it into the special connector on the connecon
panel in the required direcon, and x it by
screwing it with a plasc ring.
Data interface
Aviaon interface
Faucet body
Upper gasket
Countertop
Gasket ring
Below gasket
Installaon knob
Inlet water threaded pipe
Direct quick coupling
1/4” quick coupling
lock plate
1/4” PE Pipe
3. FILTER INSTALLATION

12
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
8. Connect the power adapter to the power output on the connecon panel of the rack.
To install the lters, present each lter in its respecve housing with the handle in a horizontal
posion (1):
1. The CF lter cartridge is installed on the
rst stage CF of main body tank;
2. The RO lter cartridge is installed on the
second stage RO of main body tank;
3. The CB lter cartridge is installed on the
third stage CB of main body tank.
Insert rmly all the way and turn the handle
90 degrees clockwise. Aer installaon, the
lters should be as shown in posion (2).
(1) (2)
Power interface
Power
3. FILTER INSTALLATION

13
EN
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
3.4. FIRST TIME USE
1. Turn on the feed water valve (4).
2. Connect the machine to the power supply. When the machine is powered on, the buzzer will
sound for 0.1 seconds, and the four indicator and the indicator on the puried water faucet will
light up in turn (blue-violet-red) for 1 second;
3. The machine will automacally wash for 5 mins. During washing, the lter life indicators (2-4)
are constantly lit in blue, and the system indicator (1) ashes red. The main part of the water is
draining.
4. Flush for 30 mins aer washing. During ushing, the lters lifeme indicators (2-4) lights are
always on, and the system indicator (1) light ashes blue (or as an indicator (1) is also a water
quality indicator it ashes according to the present water quality situaon), faucet indicator (5)
is also ashes blue.
5. When washing, be sure to carefully check the ghtness of all parts of the product, wipe the
connecon points with a paper ssue to see if the paper ssue is wet. Check whether the water
pipes are installed correctly and completely.
6. When the ushing is complete, turn o the puried water faucet and make sure that the faucet
does not leak, then the machine debugging is completed.
7. Aer washing, the whole machine enters the normal water-making state, and the system
indicator (1) and faucet indicator (5) are always blue during water supply . At this me, if you have
no need for water, turn o the faucet.
VERIFICATION OF THE UNIT’S OPERATING PARAMETERS
1. Measure recovery (proporon of supply water that becomes puried). You will need 1 L (1
quart) measuring cup and a stopwatch.
Open faucet (3) and measure me that the unit takes to produce 1 L (1 quart) of permeate
(puried water), then close faucet (3). Write down the result (tPermeate in the equaon below).
Disconnect the red tube connected to sink drain from drain saddle. Open faucet (3) and measure
me that the unit takes to produce 1 L (1 quart) of concentrate (waste water), then close faucet
3. Write down the result (tConcentrate in the equaon below). Calculate recovery using formula:
Where t is the number of seconds to obtain 1 L (1 quart) of water, R is recovery.
4. STEPS AFTER INSTALLATION
3. FILTER INSTALLATION

14
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
Replacement lter Replacement lter lifeme
/ Pure water treatment capacity
CF Filter cartridge 12 months / 4 000 L
RO Filter cartridge 24 months / 8 000 L
CB Filter cartridge 12 months / 4 000 L
2. Measure TDS of supply water and TDS of puried water using a calibrated TDS meter.
3. Check the operaon of the inlet solenoid valve. When closing the inlet valve (4), aer 1.5
minutes (90 seconds), the low pressure switch is acvated, the inlet valve is closed, and the
pump stops, the corresponding sound and light indicaon is acvated (paragraph 6.6). When the
puried water faucet is turned o, the high pressure switch is acvated, the inlet valve is closed
and the pump stops.
4. Check the unit for leaks.
5. Make record of commissioning in the maintenance log in paragraph 9 of this book.
Domesc reverse osmosis system is designed for puricaon of cold water only.
To enjoy puried water of consistent quality, replacement lters should be replaced on me.
Delay in the replacement of cartridges can lead to deterioraon or destrucon of the membrane.
If the rate of ltraon drops signicantly and is not helped by replacing CF lter, you need to
replace reverse osmosis membrane.
If you do not plan to use the system for a long me, it is recommended to shut o the water
supply to the system and disconnect it from the power supply.
5.1 PARTS OF THE FILTER AND THEIR RECOMMENDED CHANGE OUT RATES
Warning. The replacement cycle of each lter element suggested for this system is an average
value obtained according to the tap water condions in dierent locaons. If the local water
quality is below average, the actual lter element life will dier from the recommended lter
element life. If the lter element is prematurely clogged or defecve, use the actual state of use
as a basis for replacing the lter element.
* The service life of the membranes and cartridges and the frequency of their replacement
depend on the quality of the incoming water.
5.2 THE PROCEDURE FOR CARTRIDGES REPLACING
Please replace the lter cartridge regularly according to the violet and red lights of the respecve
replacement lter lifeme indicator (2-4) or faucet indicator (5).
The system has FAST&DRY lter replacement technology. The replacement process does not need
to cut o the water source.
4. STEPS AFTER INSTALLATION
5. USAGE

15
EN
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
Period of life Time of life re-
maining (days)
Liters of
capacity
remaining
Lifeme
display Acousc
Normal > 15 > 150 Permanent
blue No alarm
There is lile
le ≤ 15 ≤ 150 Permanent
violet
One beep when there is lile
me of life of the lters
Exhausted ≤ 0 ≤ 0 Permanent
red
Double beeps when lter
capacity or lifeme is ex-
hausted
To replace the cartridge you need to make easy steps:
1. Turn the exhaust lter counterclockwise.
2. Pull the exhausted lter towards you.
3. Present a new lter in its respecve housing with the handle in a horizontal posion.
4. Insert rmly all the way and turn the handle 90 degrees clockwise.
5. Reset the lter cartridge: long press the corresponding lter cartridge reset key for 5 seconds,
the buzzer will sound once (1s), the corresponding lter cartridge life indicator will ash purple
twice and then turn on blue. The system will start ushing the respecve lter for 5-6 minutes
(for CF and RO), indicator (1) ashes red. Aer this me expires, you must complete the rinsing of
the lters (RO and CB) by opening the puried water valve (3), and indicator 1 and the indicator
on the puried water valve will ash in the color corresponding to the current water quality. The
rinsing me for the RO lter is 30 minutes, and for the CB lter – 15 minutes. When the rinsing is
complete, indicator (1) and indicator (5) on the puried water valve light up blue.
5.3 FILTER LIFETIME DISPLAY
5. USAGE

16
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
5.4 WATER QUALITY DISPLAY
5.5 SYSTEM OPERATION MODES
5. USAGE
Water quality Tds range, ppm Water quality display
Excellent < 100 Permanent blue
Good ≥ 100 and < 150 Permanent violet
Bad ≥ 150 Permanent red
Funcon Acon logic
Replacement lter
lifeme indicator
status
System indicator status
Power on Buzzer beeps 0.1S, indicator
display 3S
Blue-Purple-Red
indicator light on 1S
Blue-Purple-Red indicator
light on 1S
First me use
washing
Automac ushing 5 mins Blue always lights
on Red ashing
The user turns on the tap to
go on running water for 30
minutes
Blue always lights
on
Flashing according to
current water quality
status
Washing for a
replacement
lter
1. CF lter cartridge:
automac ushing for 5
minutes.
2. RO lter cartridge:
automac ushing for 5
minutes, open the tap and
ush for 30 minutes.
3. CB lter cartridge: open
the tap and ush for 15
minutes.
Blue always lights
on
1. Water quality indicator
light red ashing when
ushing.
2. When opening the
faucet to ushing, the
water quality indicator will
be ashing according to
the current water quality.
User takes
water Water making acon
Always light on
(based on lter
lifeme display)
Always light on accord-
ing to the current water
quality
Standby
The machine stops making
water and goes into standby
mode.
Always light on
(based on lter
lifeme display)
Go out
Fault The whole machine does
not work See part 6.6

17
EN
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
5.6 SMART FEATURES
5. USAGE
SMART features Display Acousc Soluon
Leak inside the
machine.
System indicator (1), lters
lifeme indicators (2-4) and
faucet indicator (5) ashing
red
Beeps for 3
minutes
When the leak is
eliminated, the alarm is
deacvated, and it returns
to the normal state
Protecon by
pump me
Filters lifeme indicators
(2-4) and faucet indicator
(5) ashing red
3 beeps
The pump has been
working between 30 and
33 minutes. Disconnect
and reconnect the
electrical connecon
Protecon
against lack
of inlet water
pressure
Pressure loss while the
system is running: the
system runs for 90 seconds,
then the pump stops,
service life indicators (2-4)
ash blue, open puried
water valve (5) ashes red
3 beeps
Open the inlet water
valve. Check the incoming
water supply line for
blockages
No inlet pressure at system
start-up: service life
indicators (2-4) ash blue,
open puried water tap (5)
ashes red
3 beeps
Open the inlet water
valve. Check the incoming
water supply line for
blockages
Protecon by
start / stop
Filters lifeme indicators
(2-4) and faucet indicator
(5) ashing violet
4 beeps Disconnect and reconnect
the electrical connecon
Low temperature
protecon
System indicator (1), lters
lifeme indicators (2-4) and
faucet indicator (5) ashing
red
5 beeps Disconnect and reconnect
the electrical connecon

18
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
6. SANITIZATION OF REVERSE OSMOSIS FILTER
Necessary material:
• Filter housing 2.5” x 10” and connectors
• 3% hydrogen peroxide (1 l)
• Brush
• Single-use vinyl gloves
• Easy-rinse soap or detergent
• Sanizing spray
• Paper napkin
Carry out a sanizaon of the equipment aer lters replacement and connuous stand-by.
The water used during sanizaon must be potable water (from a public distribuon network
complying with the corresponding potability requirements). To do this, follow the steps below:
• Open faucet 3 and let water recirculate in order to renew the water inside the equipment.
• Close the inlet valve (4) and open faucet (3) to decrease the pressure in the equipment.
• Use single-use vinyl gloves to handle sanizing products.
• Remove the exhausted replacement lters for disposal and clean the inside of the housing and
the connecons with a brush (which must be kept clean and disinfected) together with Easy-to-
rinse soap or detergent (low-sudsing) and suitable for cleaning surfaces in contact with food.
Subsequently rinse the housings and connecons correctly ensuring that all traces of detergent
are removed.
• Change the lters and wash them as indicated in the corresponding secon 6.2. To sanize the
equipment, the lters must be inside their housings.
• Disconnect the inlet tube to the system marked as “Inlet”, and insert the Filter housing 2.5” x
10” with connectors between the feed water valve (4) and the system’s water “Inlet”.
• Once the assembly is installed, keep the feed water valve (4) closed. The Filter housing 2.5” x
10” must be empty.
• Pour 1 L of Hydrogen Peroxide into the Filter housing. Screw the samp correctly to its head.
• The feed water valve (4) and the faucet (3) must be closed. Connect the equipment to the
electrical supply.
• Open the feed water valve 4 and the faucet (3), allowing the system to start operang and
leng the Oxygenated Water suck into it. When rst poon of sanizing liquid (about 300 ml) will
run out close the faucet (3). At this me the enre circuit contains sanizing liquid.
• Aer 10 minutes open faucet (3) and let the water ow for 5 minutes.

19
EN
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
6. SANITIZATION OF REVERSE OSMOSIS FILTER
• Pay special aenon to sanizing the faucet spout. Use the sanizing spray (or, failing that,
hydrogen peroxide, dosing it in such a way that it penetrates the faucet spout) and single-use
blong paper. Spray the spray on the faucet nozzle, rub the spout and faucet nozzle with the
disposable paper and do not touch it directly with your hands.
• Given that sanizaon and rinsing do not ensure the complete removal of carbon dust from
new lters or sanizaon residues, rinse the osmosis equipment with plenty of water, aer each
sanizaon, circulang mains water of adequate quality for 5 minutes or more. Discard the rst 5
liters of water before consuming it.
• Remove sanizing installaon when disinfecon is nished
• At the end, take a drying kitchen paper, dry all the parts that may have goen wet and especially
the leak detecon probe.

20
INSTALLER AND USER GUIDE FOR CROSS 90 DIRECT FLOW REVERSE OSMOSIS FILTER
This manual is the intellectual property of Ecoso. Copying and reprinng is prohibited. © 2023
7. TROUBLESHOOTING
Problem Cause Soluon
Fing leak Tube is not joined ghtly Remove and rejoin the tube
Drain saddle leak Drain saddle is not installed
properly
Reinstall drain saddle as described in
paragraph 3.3 in this manual
Water runs too
slowly from the
faucet or slows
down substanally
a few seconds
aer the faucet is
opened
High noise Replace CF lter
The system keeps switching on
and o and will not stop
Measure permeate ow rate by opening
the faucet. Use a measuring cup to
check if the me it takes to produce 1 L
drinking water is 40 seconds.
If it took twice as long or more to
produce 1 liter of water, the membrane
may need to be replaced
High noise Straighten the tube
High noise Water supply pressure too high
If necessary, install a pressure regulator
or refer to a plumber. Contact the
service center
The system keeps
switching on and
o and will not
stop
Surges in feed water pressure
just above low pressure switch
seng
Eliminate pressure surges. Check
supply water piping for clogs and other
obstrucons and eliminate if present
The system will
not switch on
Feed valve or main shuto valve
is closed
Open all valves on supply water pipes.
Check for clogs/ obstrucon
Defecve low pressure switch
High pressure switch is
Low pressure switch defecve Replace
the switch. Check the contact group
Defecve high pressure switch Low pressure switch defecve Replace
the switch. Check the contact group
Pump overrun protecon has
been triggered
Disconnect and reconnect the electrical
connecon
The system will
not switch o High pressure switch failure Replace high pressure switch. Verify proper electrical contact
The system has
switched o but
connues to send
water to drain
Solenoid valve failure Replace the solenoid valve