25-06-2015 version 2.5
R.O. SYSTEMS
USER MANUAL
LP-10/10BP/20BP/30BP/60BP/100BP
LP-10/10BP/20BP/30BP/60BP/100BP
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Contronics Engineering B.V., Ambachtsweg 8, 5492 NJ Sint-Oedenrode, The Netherlands,
hereby declares that products LP-10BP, LP-20BP, LP-30BP, LP-60BP and LP-100BP,
produced and delivered by Contronics Engineering B.V., are in accordance with the
following CE directives:
EMC-Directive : 2004/108/EG
Directive for low-voltage
electrical installation : 2006/95/EG
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LP-10/10BP/20BP/30BP/60BP/100BP
Table of contents
1. INTRODUCTION ................................................................................... 4
2. KNOW YOUR REVERSE OSMOSIS (R.O.) SYSTEM .......................... 5
3. AVAILABLE SYSTEMS ......................................................................... 7
4. CONTENT OF THE DELIVERY ............................................................. 8
5. INSTALLATION PROCEDURE .............................................................. 9
6. WATER DETECTION CIRCUIT (LP-30BP/60BP/100BP) ................... 10
7. TEMPERATURE PROTECTION (LP-30BP/60BP/100BP) ...................11
8. LOW-PRESSURE PROTECTION (LP-30BP/60BP/100BP) ................11
9. START-UP PROCEDURE .....................................................................11
10. MAINTENANCE ..................................................................................11
11. CHECKING THE DEMINERALISED WATER .................................... 12
12. CHECKING THE BUFFER TANK ...................................................... 12
13. STORING THE SYSTEM ................................................................... 13
14. MALFUNCTIONS ............................................................................... 14
15. SPECIFICATIONS .............................................................................. 15
16. OPTIONS LP-10WS, LP-10WSG en LP-10WSWSG ........................ 16
17. INSTALLATION PROCEDURE .......................................................... 17
18. STARTPROCEDURE ......................................................................... 17
19. MAINTENANCE ................................................................................. 17
20. OPERATION OF LP-10WSG ............................................................. 17
21. SPECIFICATIONS .............................................................................. 18
LP-10/10BP/20BP/30BP/60BP/100BP
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1. INTRODUCTION
The use of demineralised water is recommended with Contronics humidiers for the
following reasons:
- Any minerals, salts and bacteria that enter the humidier will cause the water
reservoir to become polluted. The integrated ushing programme will delay this
process but will not prevent it entirely.
Depending on the quality of the added water, the water reservoir will eventually
become blocked. As a result, the energy of the transducers will no
longer be effective, and they will wear out more quickly. In addition, the oat
switch could transmit the wrong information to the electronics system, thereby
causing damage to the electronics.
- The minerals and salts (calcium) present in the water will end up in the area to be
humidied and could cause annoying deposits of dust.
- Any bacteria present in the water (Legionella) could multiply easily in the relatively
warm water in the tank and could thereby constitute a health hazard.
The use of demineralised water reduces:
- Maintenance
- Wear and tear to the transducers
- Deposits of dust in the area
- Bacterial growth
System components
The Contronics LP series is tted with a high-quality (Dow Chemical) membrane.
Working on the principle of Reverse Osmosis (R.O.), the membrane only allows water
molecules to pass through. A ushing system prevents clogging, increases the service
life of the membrane and improves performance.
Systems can be supplied with a capacity of 375 – 3,600 l per day (at a temperature of
25°C and depending on the water pressure).
Two preliminary lters are positioned ahead of the membrane: a 5 micron pre-lter and
an active carbon lter.
In the BP version, an electric pump has been added to increase the capacity in order to
cope with low water pressure or higher consumption.
The system also incorporates an automatic shut-off valve. When the system does not
need to supply demineralised water and is at the correct pressure, this will ensure that
the supply water will be shut off in order to prevent water from being unnecessarily
wasted through ushing.
A buffer tank is also included in the delivery (including the T-piece connector) and must
be tted in the supply line to the humidier. This tank will supply additional water
whenever the humidier is consuming more than the osmosis system is able to supply.
This occurs during ushing and lling. At any other time, the system supplies more
than the required consumption and any excess water will be used to top-up the tank.
The tank incorporates a rubber bag in which the demineralised water is stored. The air
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LP-10/10BP/20BP/30BP/60BP/100BP
pressure is higher between the bag and the external shell.
In the LP-30BP, LP-60BP and LP-100BP models, an electronic water leakage detector
is supplied that will cut off the water supply if any leakage is detected.
2. KNOW YOUR REVERSE OSMOSIS (R.O.) SYSTEM
Before starting the installation, take a few moments to become familiar with the names
of the components. Compare the device you have unpacked to the drawing below.
Once you are familiar with the lay-out, you can start the installation.
Figure 1. LP-10
Reverse osmosis membrane
3/8” water supply connection
Sediment pre-lter
Drainage hose
Demineralised water
Restrictor in the coupling
Carbon pre-lter
Shut-off valveNon-return valve
Fuse
Non-return valve
Shut-off valve
Reverse osmosis membrane
Booster pump
Pressure switch
3/8” water supply connection
Sediment pre-lter
Carbon pre-lter
Demineralised water
Figure 2. LP-10BP
LP-10/10BP/20BP/30BP/60BP/100BP
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Figure 2. LP-10BP
Fuse
Non-return valve
Shut-off valve
Reverse osmosis membrane
Booster pump
Pressure switch
3/8” water supply connection
Reverse osmosis
membrane (x 2)
Booster pump
3/4” water supply connection
Restrictor
Drainage hose
Water detection
sensor
Demineralised water
Alarm LED
Low water-pressure LED
Reset button
Sediment pre-lter
Carbon pre-lter
Sediment pre-lter (x 2)
Carbon pre-lter
Demineralised water
Figure 3. LP-20BP
Figure 4. LP-30BP
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LP-10/10BP/20BP/30BP/60BP/100BP
Figure 5. LP-60BP – LP-100BP
3. AVAILABLE SYSTEMS
LP-10 Reverse osmosis lter with a maximum capacity of 375 kg/day
(15.6 kg/hr) at a water pressure of 3.5 bar (50 PSI) and a water
temperature of 25 °C.
Under normal operating conditions (10 °C), 240 kg/day, 3.5 bar,
suitable for maximum:
5 x HU-25 or
2 x HU-45 or
1 x HU-85
LP-10BP Reverse osmosis lter with booster pump and a maximum capacity of
375 kg/day (15.6 kg/hr) at a minimum water pressure of 1 bar (15 PSI)
and a water temperature of 25 °C.
Under normal operating conditions (10 °C), 240 kg/day, suitable
for maximum:
5 x HU-25 or
2 x HU-45 or
1 x HU-85
Reverse osmosis
membrane (x 4)
Booster pump
3/4” water supply connection
Restrictor
Drainage hose
Water detection sensor
Demineralised water
Alarm LED
Low water-pressure LED
Reset button
Sediment pre-lter (x 2)
Carbon pre-lter
LP-10/10BP/20BP/30BP/60BP/100BP
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LP-20BP Reverse osmosis lter with booster pump and a maximum capacity of
750 kg/day (31.2 kg/hr) at a minimum water pressure of 1 bar (15 PSI)
and a water temperature of 25 °C.
Under normal operating conditions (10 °C), 480 kg/day, suitable
for maximum:
4 x HU-45 or
2 x HU-85
LP-30BP Reverse osmosis lter with booster pump and a maximum capacity of
1125 kg/day (47 kg/hr) at a minimum water pressure of 1 bar (15 PSI)
and a water temperature of 25 °C.
Under normal operating conditions (10 °C), 720 kg/day, suitable
for maximum:
4 x HU-85 or
1 x HU-245
LP-60BP Reverse osmosis lter with booster pump and a maximum capacity of
2250 kg/day (114 kg/hr) at a minimum water pressure of 1 bar (15 PSI)
and a water temperature of 25 °C.
Under normal operating conditions (10 °C), 1440 kg/day, suitable
for maximum:
8 x HU-85 or
2 x HU-245
LP-100BP Reverse osmosis lter with booster pump and a maximum capacity of
3600 kg/day (140 kg/hr) at a minimum water pressure of 1 bar (15 PSI)
and a water temperature of 25 °C.
Under normal operating conditions (10 °C), 2310 kg/day, suitable
for maximum:
4 x HU-245
4. CONTENT OF THE DELIVERY
- R.O. unit with 1/4” supply tap
- Buffer tank (hydro-pneumatic) with shut-off tap
- 3/8” hose, 4 metres
- 3/8” T-piece
- Coupling 3/4” screw thread - 3/8” hose
- 1/4” discharge hose, 2 metres
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LP-10/10BP/20BP/30BP/60BP/100BP
Figure 6 LP-10 with pressure tank and connections
5. INSTALLATION PROCEDURE
Place the device in a suitable location. Place the pre-lter (for LP-30BP/60BP/100BP 2 x)
in the left-hand holder.
Place the carbon lter in the right-hand holder (remove the cellophane).
When doing this, ensure that the O-rings on the holders are seated correctly.
The carbon lter is tted with a at rubber ange at the top and the bottom.
Remember to make allowance for the connections for the water supply, discharge,
buffer tank and socket. It is recommended to t the device against the wall in the
vertical position. This will speed up the air bleeding and will enable easy replacement
of the lters. Although it is possible to mount the device in a horizontal position, the
preferred position is vertical with an eye to the easy replacement of the pre-lters.
Supply water connection:
WARNING
Do not place an automatic stop valve in the water supply to the R.O. system.
No inlet pressure, or inadequate inlet pressure, can damage the pump and/or
motor.
Tap
Water supply
to HUto drain
Buffer tank
T-piece
LP-10/10BP/20BP/30BP/60BP/100BP
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Check that the supply pressure is at least 2 bar. Where the inlet pressure < 2 bar it is
recommended to install a device incorporating a booster pump (BP).
For maximum performance, the inlet pressure must be a minimum of 4 bar for the
LP-10.
Connect the R.O. unit to a washing machine tap with an air bleed valve. The R.O. unit
has a shut-off tap in the water supply with 1/4” inner thread. A shut-off valve ensures
that the water supply is cut off when the buffer tank is completely full and no water is
being consumed.
R.O. water connection:
1. Fit a 3/8” tube from the R.O. water connection (Figure 6) to the T-piece and from
the T-piece to the inlet valve on the storage tank.
2. Fit a tube from the T-piece to the humidier. The ¾” connection coupling to the
humidier is included in the delivery.
Discharge connection:
Fit a tube (1/4” minimum) from the discharge connection (Figure 6) to the drain.
Important: Always leave a gap between the discharge tube and the drain in order to
prevent the water from owing back into the R.O. system.
Electrical connection (BP model only):
Insert the plug into the socket.
6. WATER DETECTION CIRCUIT (LP-30BP/60BP/100BP)
Position the water detector in an area where you would expect water to collect rst in
case of a leak. If the surface here is conductive, rst lay an insulating layer. If the water
detector detects a leak, the supply valve to the system will be closed immediately. It is,
however, possible that the content of the buffer tank will continue to leak (10 l water).
A reset button has been located on the electronics housing; if this button is briey
pressed, the system will be re-activated.
In addition, a connection for an external alarm is also provided on the electronics
housing in the form of a potential-free contact.
WARNING
Use only plastic or stainless steel tubing for demineralised water.
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LP-10/10BP/20BP/30BP/60BP/100BP
7. TEMPERATURE PROTECTION (LP-30BP/60BP/100BP)
The LP-30BP/60BP/100BP are tted with a temperature cut-out device that will
temporarily interrupt the power supply if the pump motor becomes overheated.
8. LOW-PRESSURE PROTECTION (LP-30BP/60BP/100BP)
The LP-30BP/60BP/100BP are tted with a low-pressure protection device to protect
the pump. If the inlet pressure to the pump falls below 1 bar, the system will be
switched off and the blue LED will light up. A reset button has been located on the
electronics housing; if this button is briey pressed, the system will be re-activated.
9. START-UP PROCEDURE
1. Check all connections once again.
2. Close the tap on the buffer tank. This will bring the system up to pressure quickly
without the need to wait until the buffer tank is lled.
3. Open the supply tap and check for any leaks. If any are found, close the supply
tap and repair the leaks rst.
3a. For the BP model: Insert the plug into the wall socket.
4. Disconnect the water supply tube from the humidier and allow the water to ow
freely for about 2 minutes in order to ush the membrane, which is saturated with
a disinfecting agent.
5. Re-connect the tube to the humidier.
6. Open the tap on the storage tank and wait until the tank is completely lled (the
discharge water will stop).
7. Only now can you switch the humidier on.
10. MAINTENANCE
Some maintenance is necessary in order to guarantee the long service life of the
system. Normal maintenance consists of replacing the sediment lter and the active
carbon lter(s). This should be done at least once a year if the humidier is in
continuous use. If the supply water is heavily polluted with minerals or chlorine,
however, it is recommended to do this more often.
Procedure:
Before replacing the lters, the system must be de-pressurised.
1. Cut off the power from the pump (BP model only).
2. Switch the humidier off.
3. Close the supply tap.
4. Close the tap on the storage tank.
5. Disconnect one of the tubes from the storage tank and collect the excess water.
6. Exchange the lters by unscrewing the lter holders.
Beware: The lter holders still contain water.
LP-10/10BP/20BP/30BP/60BP/100BP
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7. Before re-installing the lters, the O-ring must be checked for damage and correct
seating.
8. The holders can be cleaned with soap and water or with chlorine, if necessary.
Rinse thoroughly afterwards.
9. After re-installing, screw the holders back into place (hand-tight!).
Starting up again:
1. Open the supply tap and let the system ush through for about 5 minutes (in order
to ush out any air).
2. Supply voltage to the pump.
3. Reconnect the tube to the storage tank.
4. Open the tap on the storage tank.
5. Wait until the system reaches the correct pressure (the discharge water will stop).
6. Switch the humidier on again.
11. CHECKING THE DEMINERALISED WATER
- Take a sample of the supply water.
- Measure the conductivity of the supplied tap water using a micro-siemens meter.
- Take a sample of the demineralised water.
- Measure the conductivity of the demineralised water using a micro-siemens
meter.
- Divide the value found for the demineralised water by the value found for the
supplied tap water and multiply the result by 100%:
< 10%: the water quality is good
Between 10% and 20%: the water quality is acceptable
> 20%: the water quality is poor – replace the membrane.
- If the micro-siemens value for the supplied tap water is >500 uS, it is
recommended to install a de-scaling system ahead of the R.O. system.
12. CHECKING THE BUFFER TANK
If the buffer tank is not completely lled during the start-up procedure, it is possible that
the pressure in the tank is too high compared to the pressure of the supplied water. In
this case it is possible to release some of the (air) pressure step-by-step via the valve
situated underneath the tank under a black cap, until the tank is lled. It is also possible
to measure the pressure with the same kind of meter that is used for car tyres.
To check that the pressure is not too low, the tank must be disconnected with the tap
closed. Open the tap in an area where this is possible and allow the tank to empty
completely.
If the pressure is too low, it is possible to increase the pressure using the valve and
the same system that is used to increase the pressure in car tyres. The pressure is
normally adjusted to 0.45 bar.
If the humidiers are installed at a higher elevation than the buffer tank, 0.1 bar must be
added for every metre of height difference.
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LP-10/10BP/20BP/30BP/60BP/100BP
13. STORING THE SYSTEM
Always store the system in a frost-free area, but with a temperature that is as low as
possible. If the storage period is to exceed 3 months, remove the membrane and store
it fully immersed in disinfected water in order to prevent desiccation and/or bacterial
growth.
LP-10/10BP/20BP/30BP/60BP/100BP
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14. MALFUNCTIONS
No or too little
water?
Check inlet pressure
Taps open?
Check electrical
connection
Discharge water
but no
demineralised
water
Replace membrane(s),
clean restrictor
Demineralised
water but no
discharge water
Clean restrictor, check if
discharge hose blocked
Red LED
illuminated
Check for leaks
Blue LED
illuminated
Check inlet pressure
(dynamic > 1 bar)
Replace pre-filters
Calcium
precipitation
while humidifying
Micro-siemens check
(page. 10 item 10)
Replace membrane(s),
clean restrictor
Pump not
running
Pump motor hot Wait until cooled down
Pump motor overheats
again
Remove air
Reset
Check ratio
discharge water :
demineralised water
3 : 1
Check ratio
discharge water :
demineralised water
3 : 1
Check ratio
discharge water :
demineralised water
3 : 1
Replace pump
Reset
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LP-10/10BP/20BP/30BP/60BP/100BP
15. SPECIFICATIONS
LP-10 LP-10BP LP-20BP LP-30BP LP-60BP LP-100BP
Maximum production in
kg/day at 25 °C
water temperature
375 560 750 1125 2250 3600
Maximum production in
kg/day at 10 °C
water temperature
240 360 480 720 1440 2310
Retention of salts and
minerals (%)
98 98 98 98 98 98
Yield compared to supplied water (%)
20-35 20-35 20-35 20-35 20-35 20-35
Ambient temperature 0 °C till
25 °C
0 °C till
25 °C
0 °C till
25 °C
0 °C till
25 °C
0 °C till
25 °C
0 °C till
25 °C
Water temperature 0 °C till
25 °C
0 °C till
25 °C
0 °C till
25 °C
0 °C till
25 °C
0 °C till
25 °C
0 °C till
25 °C
Power consumption (W) 0 25 25 250 250 250
Minimum pressure 2 bar 1 bar 1 bar 1 bar 1 bar 1 bar
Dimensions (LxWxH cm) 36x23x38 36x23x46 36x23x46 50x35x54 50x35x54 50x35x54
Content of
buffer tank (kg)
10 10 10 10 10 10 (2 x)
Buffer tank dimensions 26 x 40 26 x 40 26 x 40 26 x 40 26 x 40 26 x 40
Inlet pressure (bar) 0.45 0,45 0,45 0,45 0,45 0,45
Net weight (kg) 3,9 7,7 8,7 16,3 18,1 18,1
LP-10/10BP/20BP/30BP/60BP/100BP
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16. OPTIONS LP-10WS, LP-10WSG en LP-10WSWSG
This extra user manual provides specic operating, installation and maintenance
instructions for the LP-10WS, LP-10WSG and LP-10WSWSG options.
LP-10WS is an LP-10 combined with a
permeate pump. The pump, which is
powered by water, ensures that the
rinsing water is used more efciently.
The LP-10 needs 30 litres of rinsing
water to produce 10 litres of
demineralised water.
The LP-10WS uses only 20 litres.
Annually the LP-10WS saves 85 m
3
.
See the graph and specications on
page 19.
Figure 7. LP-10WS
The LP-10WSG monitors the
membrane function continuously.
Normally the membrane is checked
1 x a year.
This is now done automatically and
will show when the membrane
needs to be replaced. If the quality
of the membrane sinks below a
certain level, the humidication
system that is connected to the
LP-10WSG is switched off. See
specications page 19.
Figure 8. LP-10WSG
Figure 9. LP-10WSWSG combines the options WS en WSG
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LP-10/10BP/20BP/30BP/60BP/100BP
17. INSTALLATION PROCEDURE
Ditto LP-10. See page 9. The only difference being putting the plug for the LP-10WSG
and the10WSWSG in the socket.
18. STARTPROCEDURE
See page 11. The green or green/yellow LED lights up when LP-10WSG and
LP-10WSWSG has been installed. After a few minutes, and with a good supply of
water, the green LED is the only one lit up.
19. MAINTENANCE
The LP-10WS, LP-10WSG and the LP-10WSWSG only need the maintenance described
on page 11. There is no maintenance for the WS and WSG options.
20. OPERATION OF LP-10WSG
The osmosis is working properly if the green LED is lit up. The membrane needs
replacing during the maintenance inspection if the yellow LED lights up. If the red LED
ashes the membrane must be replaced at once. If it is not replaced within 24 hours,
the red LED will light up and the connected humidier will be switched off.
STARTUP µS permeate
X = x 100%
µS water supply
X < 10%
X ≥ 10%
X < 10% X ≥10% (after 3 minutes)
X < 20% X ≥ 20%
X ≥ 20% (after 24 hours)
WAIT
(green/yellow)
CONTROL
(yellow)
REPLACE
(flashes red)
SWITCHES OFF
(constant red)
OKAY
(green)
LP-10/10BP/20BP/30BP/60BP/100BP
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21. SPECIFICATIONS
LP-10WS LP-10WSG LP-10WSWSG
Electricity consumption (W) n/a 2 2
Mains voltage (V) n/a 230 230
Maximum switching capacity (W) n/a 500 500
Yield in respect to added water (%) 1 : 2 1 : 3 1 : 2
Water yield per hour (L) (3.5 bar) 10 10 10
Dimensions LxBxH (cm) 36x23x43 36x23x43 36x23x43
Net weight (kg) 4,5 4,8 5,2
LP-10BPWS LP-10BPWSG LP-10BPWSWSG
Electricity consumption (W) 25 277 27
Mains voltage (V) 230 230 230
Maximum switching capacity (W) 500 500 500
Yield in respect to added water (%) 1 : 2 1 : 3 1 : 2
Water yield per hour (L) (3.5 bar) 18 15 18
Dimensions LxBxH (cm) 36x23x46 36x23x46 36x23x46
Net weight (kg) 7,6 7,9 8,3
LP-20BPWS LP-20BPWSG LP-20BPWSWSG
Electricity consumption (W) 25 27 27
Mains voltage (V) 230 230 230
Maximum switching capacity (W) 500 500 500
Yield in respect to added water (%) 1 : 2 1 : 3 1 : 2
Water yield per hour (L) (3.5 bar) 23 20 23
Dimensions LxBxH (cm) 43x23x46 43x23x46 43x23x46
Net weight (kg) 9 9,3 9,7
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LP-10/10BP/20BP/30BP/60BP/100BP
20.00
25.00
30.00
35.00
40.00
45.00
50.00
l/hr
LP-10 CAPACITY<>CONSUMPTION
Permeate
Total consumption LP-10
0.00
5.00
10.00
15.00
0.0 1.0 2.0 3.0 4.0 5.0 6.0
City water pressure (bar)
Total consumption LP-10 + WS
DISCLAIMER
Contronics works continuously on the further development of its R.O. systems.
We therefore reserve the right to modify the design, construction and technology of
the product at any time. For this reason, no claims can be made based on the data,
illustrations and description in this user manual.
Additional, up-to-date information is available on www.contronics.nl.
LP-10/10BP/20BP/30BP/60BP/100BP
20
P.O. Box 144
5490 AC Sint-Oedenrode
The Netherlands
Telephone: +31(0)413-487000
Telefax: +31(0)413-473903
Website: www.contronics.nl
E-mail: info@contronics.nl
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