CDL NANO RO User manual

OWNER’S
MANUAL
NANO RO
REVERSE
OSMOSIS SYSTEM
Version 1.0
06/11/2020
© All rights reserved - CDL Maple Sugaring Equipment

2CDL Sugaring Equipment

3CDL Sugaring Equipment
TABLE OF CONTENT
INTRODUCTION 4
CHARACTERISTICS 5
PARTS 6
PRODUCT DESIGN 7
TECHNICAL SPECIFICATIONS 8
FITTINGS 9
FLOW DIAGRAM 10
RINSE 12
WASH 13
DRAIN 14
CONCENTRATION (1 PASS) 15
CONCENTRATION (BATCH) 16
HOW TO REPLACE FILTRATION CARTRIDGES 17
HOW TO INSTALL MEMBRANES 17
DAILY MEMBRANE CLEANING 18
PROTECT FROM FREEZING 18
IMPORTANT NOTES 18
LONG-TERM STORAGE PROCEDURE 19
WATER QUALITY GUIDELINES 20
WARRANTY 21

4CDL Sugaring Equipment
INTRODUCTION
Thank you for choosing our Nano RO 2- or 3-membrane system. Please read this manual
carefully before installation and start-up.
The CDL 2- or 3-membrane Nano RO is a simple and effective tool for maple and birch sap
concentration. Its three-stage prefiltration removes impurities like suspended solids and larger
organic matter to better protect membranes and improve overall system performance.
Remarks and instructions
1. Read the instructions before installing and operating the RO system.
2. To avoid damage to the system, do not disassemble it unnecessarily. Disassembling and
reassembling parts may cause breaks or leaks.
3. For your safety, it is recommended to plug the unit into a GFCI electrical outlet.
4. To make sure that the system runs normally, be sure to use cleaning chemicals and filters
supplied by CDL.
5. Please handle, install, and move the unit with care to avoid damaging the more delicate
parts.
6. Before beginning operation, install the membranes and the 5-micron filters in their
respective housings.
7. Wash and rinse the system thoroughly before concentrating the sap (see daily membranes
cleaning page 18).
8. During concentration, do not exceed 100 psi for the 3-membrane system and 70 psi for the
2-membrane system. In the 2-membrane system, the concentrate flow must be double the
permeate flow. Since the 2-membrane unit does not have a recirculation pump to ensure
proper cross-flow circulation, it is important to follow those rules to prevent membrane
fouling.
9. This system is not designed for concentrations exceeding 5 to 6 degrees Brix for the
3-membrane unit (which has a recirculation pump) and 4 degrees Brix in batch mode for the
2-membrane unit (which does not have a recirculation pump). Concentration capacity varies
depending on the condition of the membranes, the temperature and quality of the sap, and
the operating pressure.

5CDL Sugaring Equipment
10. Membranes must be cleaned daily.
11. If the device is not used for a few days, make sure to wash the membranes properly. To
prevent bacterial growth, run a citric acid solution (3 pH) through the membranes. Stop
the device and install the 3 plugs (Green  = feed pump inlet; red  = concentrate outlet;
blue  = filtrate outlet).
12. Rinse the equipment before resuming concentration.
CHARACTERISTICS
• Stage 1: The feed line strainer catches impurities in the water and prevents pump blockage.
The strainer must remain connected to the feed line (3/8” yellow  feed tube).
• Stage 2: The 5-micron filter absorbs harmful substances in the water, such as colourants
and organic substances ( 3/8” yellow  feed tube).
• Stage 3: The 5-micron filter effectively removes sediment, mold, suspended matter, and
other substances from the water ( 3/8” yellow  feed tube).
• Stage 4: Reverse osmosis is applied using the 600 GPD RO membrane filter (3) and the
0.0001 μm RO membrane, allowing only pure water molecules and dissolved oxygen to pass
through. Organic molecules such as sugar and good minerals are concentrated (3/8” red 
tube on the recirculation circuit and 1/4” red  on the concentrate outlet).
• Stage 5: A regulating valve on the 1/4” concentrate outlet (red  tube) increases and reduces
the pressure and controls the level of concentration. Maximum operating pressure: 100 psi
(70 psi on 2-membrane system).
Recirculation pump:
The 3-membrane Nano RO is equipped with a unique recirculation pump for better performance.
By creating more cross flow on the membrane surface, the permeate flow remains steady and
the system achieves higher concentration .

6CDL Sugaring Equipment
PARTS
Filter Housing Wrench
3/8" Feed Line Strainer
PP Filter 600 gal
66821001
Membrane Housing Wrench
600 GPD RO Membrane
660600
1/4" - 3/8" Tube
Filter
Housing Cap
O-ring
Filter
Housing
Citric acid1 kg (powder)
66994
Organic membrane soap
”Superflow green” 1 kg (powder)
662403
Cleaning products (not included)

7CDL Sugaring Equipment
PRODUCT DESIGN
DESCRIPTION
1 800 gal 36 V Pump
2 Pressure Gauge
3 On-Off Button
4 5 Micron PP Filter Housing
DESCRIPTION
5 3213 Membrane Housing
6 Recirculation Pump
7 Flow Switch
8 Feed Port
1
1268 7
2
3
4
8
5
4
5

8CDL Sugaring Equipment
Model #: 81008 81013R
Number of taps: 25–75 50–≥150
Membranes 2 Membranes 600 GPD
3 Membranes 600 GPD
Recirculation pump
110 V, 0.45 A
Water removal: 6–8 GPH
@ 4–5 Brix concentrate
10–13 GPH
@ 5–6 Brix concentrate
Pump rating max flow: 40 GPH 40 GPH
Power consumption: 144 W 242 W
Transformer: 110 volts, transformer included 110 volts, transformer included
Shipping weight: 17 kg 22 kg
Shipping dimensions: 22" x 21" x 12" 22" x 21" x 12"
Included: • 2x 600 GPD membrane
• 2x pre-filter cartridge
• Tool for pre-filter housing
• Tool for membrane housing
• 12’ 3/8" suction tubing
with strainer (yellow)
• 12’ 3/8" permeate
tubing (blue)
• 12’ 1/4" concentrate
tubing (red)
• Spare fitting kit
• Spare O-ring kit
• 3x 600 GPD membrane
• 2x pre-filter cartridge
• Tool for pre-filter housing
• Tool for membrane housing
• 12’ 3/8" suction tubing
with strainer (yellow)
• 12’ 3/8" permeate
tubing (blue)
• 12’ 1/4" concentrate
tubing (red)
• Spare fitting kit
• Spare O-ring kit
Test conditions: Sap temperature 42 °F, 2 Brix,
50/50 water reduction, 70 psi
Sap temperature 42°F, 2 Brix,
65/35 water reduction, 100 psi
TECHNICAL
SPECIFICATIONS
REVERSE
OSMOSIS SYSTEM
WITH 2 MEMBRANES
REVERSE
OSMOSIS SYSTEM WITH
RECIRCULATION PUMP
AND 3 MEMBRANES

9CDL Sugaring Equipment
FITTINGS
DESCRIPTION ITEM
NUMBER
1 ELBOW 3/8” X 1/4” TUBE-MIPT 664661
2 ELBOW 3/8” X 3/8” TUBE-MIPT 664658
3 TEE 3/8” X 3/8” X 3/8” TUBE 664666
4 TEE 3/8” X 3/8” X 1/4” TUBE 664665
5ADAPTATOR 3/8” X 1/2”
TUBE-MIPT 664652
6ADAPTATOR 1/4” X 1/8”
TUBE-FIPT 664653
7 VALVE 1/4” TUBE 664667
8 CAP 1/4” TUBE 664655
DESCRIPTION ITEM
NUMBER
9 CAP 3/8” TUBE 664654
10 ELBOW 3/8” X 3/8” TUBE-STEM 664659
11 ELBOW 1/4” X 1/4” TUBE-STEM 664660
12 TEE 3/8” X 1/4” X 3/8” TUBE 664664
13 ADAPTATER 3/8” X 1/2”
TUBE-FIPT 664651
14 SPRING CHECK VALVE
3/8” TUBE 664663
15 MANOMETER
0-140 PSI - 1/8” MIPT 664662
1
6 11
10 13
2
7
12
3
8
14 15
4
9
5
10

10 CDL Sugaring Equipment
Feed and
Pressure Pump
PI
Pressure Gauge
0–100 psi
Filter Cartridge
Suction Mesh
Filter
Membrane
#1
Membrane
#2
Concentrate
Control Valve
IN
OUT
IN OUT
OUT
OUT
IN
IN
OUT OUT
Concentrate
3/8" Tube
3/8" Tube
3/8" Tube
3/8" Tube
3/8" Tube
3/8" Tube
Permeate
3/8" Tube
1/4" Tube
3/8" Tube
Flow diagram (2-membrane model)

11CDL Sugaring Equipment
Feed and
Pressure Pump
Recirculation
Pump
Filter Cartridge
Suction Mesh
Filter
Membrane
#1
Membrane
#2
Membrane
#3
Check valve Concentrate
Control Valve
IN
OUT
IN
IN
OUT
OUT
OUT
OUT
IN
ININ
OUT OUTOUT
Concentrate
3/8" Tube
3/8" Tube
3/8" Tube
3/8" Tube
3/8" Tube
3/8" Tube
3/8" Tube
1/4" Tube
3/8" Tube
OUT IN
PI
Pressure Gauge
0–100 psi
3/8" Tube
3/8" Tube
OUT
3/8" Tube
Permeate
Flow diagram (3-membrane model)

12 CDL Sugaring Equipment
Concentration
valve control
Drain
Suction line
15 gal. ≥
permeate
Rinse
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Permeate Concentrate Sap

13CDL Sugaring Equipment
Concentration
valve control
Suction line
5 gal
washing
solution
Wash
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Permeate Concentrate Sap

14 CDL Sugaring Equipment
Concentration
valve control
Drain
Suction line
Suction tube
out of the tank
Drain
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Permeate Concentrate Sap

15CDL Sugaring Equipment
Concentration
valve control
Suction line
Sap
Permeate Concentrate
Concentration (1 pass)
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Permeate Concentrate Sap

16 CDL Sugaring Equipment
Concentration
valve control
Suction line
Sap
Permeate
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Perméat / permeate
Concentré / Concentrate
Sève / Sap
Valve controle de
concentration /
Concentration valve
control
Drain
Tuyau de suction / Suction line
Rincage / Rinse
15 Gal.
Perméat /
Permeate
Permeate Concentrate Sap
Concentration (batch)

17CDL Sugaring Equipment
HOW TO REPLACE FILTRATION CARTRIDGES
1. Unscrew the cartridge housing.
2. Remove the old cartridge.
3. Insert the new cartridge into the housing.
4. Lubricate the transparent gasket lightly with silicone grease. Make sure the gasket is still
in place.
5. Make sure that the cartridge is centred in the housing. Screw the housing into place.
HOW TO INSTALL MEMBRANES
1. Unscrew the cover from the housing.
2. Remove the old membrane.
3. Lightly lubricate all O-rings and casing seals with silicone-based food-grade grease. Insert
the new membrane fully into the housing.
4. Make sure the membrane seal is on the cover side.
5. Screw the cover onto the housing.
1
1
2 3
3 4
4
2
5
5

18 CDL Sugaring Equipment
DAILY MEMBRANE CLEANING
• Rinse the sugar water out of the equipment using 5 gallons of permeate and recover it in
the sap tank.
• Complete the rinse by draining with 5 gallons of permeate.
• Using a 5-gallon bucket of permeate at 80 °F, add 1/4 cup of Super Flow Green membrane
cleaner.
• Place the suction tube (yellow  ), permeate tube (blue  ), and concentrate tube (red  )
into the wash solution bucket.
• Open the concentrate control valve.
• Run the equipment in a closed loop into the wash solution bucket for 30 minutes.
• Once the wash is finished, flush the solution to drain.
• Repeat the wash if the wash solution is coloured or cloudy.
• Rinse the equipment with no less than 10 to 15 gallons of clean permeate
PROTECT FROM FREEZING
• Protect the equipment from freezing during temporary storage.
• If the equipment must remain in a cold place, remove the filters and drain the equipment
properly. Reinstall filter housing and run the pump dry for a few minutes. This will partially
remove water from the system and prevent frost damage to the pumps and other parts.
• Make sure there is no water remaining in the equipment and lines.
• The equipment may need to be thawed with warm water when it’s ready to be used again.
• Make sure that all pumps are ice-free before using the equipment. Small pieces of ice may
damage the pumps. Thaw the pumps with a hair dryer or by pouring warm water over them.
IMPORTANT NOTES
• It is always best to keep the equipment in an area that is above freezing temperature.
• If the equipment is moved through freezing weather, make sure it is drained properly before
exposing it to cold temperature.

19CDL Sugaring Equipment
LONG-TERM STORAGE PROCEDURE
1. Properly clean RO membranes using CDL Super Flow Green membrane cleaner, following
the instructions on the container. Repeated washes may be necessary if the wash solution
is cloudy. A coloured wash solution means that the membrane is not entirely clean. The
solution should be clear after the final wash.
Replace filtration cartridges with new ones.
5 gallons of permeate is sufficient for rinsing between washes. We recommend draining the
wash solution, following the drainage procedure, before rinsing.
2. Rinse membranes with RO permeate or acceptable quality water. If permeate isn’t available,
see the water quality guidelines to determine which water is safe to use.
3. Citric acid treatment
Treating with citric acid helps dissolve minerals that may partially block membrane pores.
Following the washing procedure, add 1/4 cup of citric acid to a 5-gallon bucket of 80 °F
permeate.
Run the equipment in a closed loop for 1 hour or more, allow soaking overnight. If the water
is cloudy, wash the system with CDL Super Flow Green, then rinse.
4. Storage solution
You may leave membranes in the unit for storage as long the unit is protected from frost.
Citric acid is a good preservative that prevents bacteria from developing in the system. Add
1/4 cup of CDL citric acid to a 5-gallon bucket of permeate, then run the RO in a closed
loop for ½ hour to allow proper mixing. To prevent leaks, disconnect the suction (yellow  ),
concentrate (red  ), and permeate (blue  ) tubes and insert the provided plugs in the
connectors.
5. Store the equipment in a cool room where protected from frost

20 CDL Sugaring Equipment
WATER QUALITY GUIDELINES
The quality of the water used for flushing and cleaning the membranes is of utmost importance,
as unclean water can cause deposits on the membranes. In most cases, municipal water
does not qualify as “clean water”. Chlorinated water must not be used to rinse or clean the
membranes.
Special attention should be paid to possible contaminants such as iron, manganese, and
silicates. Clean water must meet the following specifications at all times:
Important note:
When possible, RO permeate is always preferred for washing and rinsing
membranes.
CONTAMINANT REQUIREMENT
Iron <0.05ppm
Manganese <0.02ppm
Silicate <5ppm
Aluminum <0.05ppm
Hardness <85ppm
Particles <5μm
Turbidity <1NTU