NANO D2 User manual

User guide
heatless desiccant air dryer
revision: 2022-116 document: 17-100-0120
© 2022 Air & Gas Solutions LLC.
www.n-psi.co.uk

Experience. Customer. Service.
about us
Experience.
Our team is comprised of and supported by individuals spanning
all disciplines from research & development, engineering &
manufacturing, marketing & sales and service & support. Our
backgrounds are in air and gas purication and our experience
in this eld spans a wide range of industries. We combine this
knowledge and experience to ensure our products and services are
designed and provided to meet the objectives and expectations
of you - our Customer.
Service.
At nano we recognise that world-class customer service is the
most important component to any successful business. Your
business needs to exceed your customers’ expectations to
stand out from your competitors and our service must positively
impact your business so you can be successful in doing so. Our
commitment is simple… we will stand behind our products and
ensure that our customer service is unrivaled in the industry.
Customer.
We recognise that our Customers are not only our valuable
distribution partners who sell and support our products or the
machine builders who depend on them as protection for their
equipment. They are the contractors who install them, the
manufacturers who use them in their processes and the service
people who maintain them. At nano we have developed our
products, packaging and support materials to ensure they exceed
all of our Customers’ expectations.

3
section description page
1
1. general information
4
1.1 manufacturers detials and support
1.2 document introduction
5
1.3 warranty guidelines
1.4 general safety
1.5 intended use of the product
2
2. technical specication
6
2.1 ow rates
2.2 product dimensions 7
2.3 product overview 8
2.4 typical system layout
9
2.5 site location
2.6 operation 10
2.7 remote start/stop control 11
2.8 remote stop control 12
2.9 shutdown procedure 13
3
3. monitoring dryer performance (when ES option is tted) 14-16
3.2 maintenance
173.3 cleaning
3.4 daily checks
3.5 service schedule and breakdown 18
4
troubleshooting 19
process and instrumentation diagram 20
wiring diagram 21
notes 22-23
table of contents

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1. general information
This manual is copyrighted, all rights reserved. It may not, in whole or in part, be copied, photocopied, reproduced, translated, or
reduced to any electronic medium or machine readable form without prior consent in writing from Air & Gas Solutions LLC. It may not be
distributed through the internet or computer bulletin board systems without prior consent from Air & Gas Solutions LLC.
1.1 manufacturers detials and support
nano-purication solutions ltd. (Manufacturer)
address: Dukesway
Team Valley Trading Estate Gateshead
NE11 0PZ
United Kingdom
telephone: [phone]
internet: www.n-psi.co.uk
email [email protected]
usa - nano-purication solutions inc.
address: 5509 David Cox Road
Charlotte, NC 28269
USA
telephone: [phone]
internet: www.n-psi.com
email: [email protected]
canada - nano-purication solutions inc.
address: 7 Petrie Street
St. Catharines,
Ontario L2P 3J6
Canada
telephone: [phone]
internet: www.n-psi.com
email: [email protected]
germany - nano-purication solutions inc.
address: Maastrichter Straße 12
D-41812 Erkelenz
Germany
telephone: [phone]
internet: www.n-psi.de
e-mail: [email protected]
NOTES: highlight important sections of information where
particular care and attention should be paid.
CAUTIONS: indicate any situation or operation that may result in
potential damage to the product, injury to the user, or render the
product unsafe.
annotations

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1.2 document introduction
This manual provides factory prescribed installation and maintenance procedures for the heatless desiccant air dryer. The procedures
illustrated in this document are only to be performed by authorized personnel. For further information regarding the procedures outlined in
this document contact the manufacturer before proceeding. Be sure to read this document carefully before attempting to install or operate
the heatless desiccant air dryer. This document should be permanently available at the heatless desiccant air dryer installation site.
1.3 warranty guidelines
All products are supplied with a 2 year manufacturer’s warranty from the date of purchase when installed and maintained in accordance
with the manufacturers guidelines. Only genuine service parts should be used and no modications made.
1.4 general safety
No modications must be made to the product. Any modications may reduce the operational safety of the product and invalidate the
manufacturer’s warranty. This could potentially result in damage to the product and serious personal injury.
For your own safety, when carrying out work on this product, all relevant national safety regulations must be complied with relating to
pressurized and electrical systems.
Only authorized, competent and trained personnel are permitted to work on this product. This user guide is intended solely for such
personnel and is to be used only as a reference; it should not be used to replace conventional training.
1.5 intended use of the product
The heatless desiccant air dryer is exclusively intended for the treatment of compressed air, which is free from bulk water, oil and solid
matter constituents.
The product should be located within a building and protected from extreme conditions and weather. The heatless desiccant air dryer
must be operated only in accordance with the data on the rating plate. Any operations that do not comply with those stated on the
product rating label will render the warranty void

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2. technical specication
specications standard options
maximum water content (ISO class) class 2 -40°C (-40°F) pdp class 1: -70°C (-94°F) pdp
minimum operating pressure 4 barg (58 psig) -
maximum operating pressure 16 barg (232 psig) -
recommended operating temp range 1.5 to °C (35 to °F) -
design operating temperature range 1.5 to 50°C (35 to 122°F) -
power supply requirements 100-240V AC @ 50-60 Hz 24V DC
consult rating label, options operating parameters may differ
ISO Class 2 at recommended max rated flow at 7 Barg and 25°C inlet; see correction factors.
2.1 ow rates
model
inlet ow rate connection
Nm3/hr scfm inlet outlet
NDL-060 58 34.1
1”
BSPP or NPT
1”
BSPP or NPT
NDL-070 70 41.2
NDL-080 90 52.9
NDL-090 112 65.9
NDL-100 150 88.2
NDL-110 180 105.9
NDL-120 224 131.8
NDL-130 301 177.1
Inlet Tempertrue Correction Factors
°C 5 10 15 20 25 30 35 40 45 50
°F 41 50 59 68 77 86 95 104 113 122
correction factor 0.8 0.9 0.94 1 1 0.98 0.95 0.9 0.85 0.72
Inlet Pressure Correction Factors
barg 45678910 11 12 13 14 16
psig 58 72 87 101 116 130 145 159 188 203 217 232
correction factor 0.63 0.75 0.88 1 1.13 1.25 1.38 1.50 1.63 1.75 1.88 2.13

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2.2 product dimensions
model
dimension
weight
A B C D E
mm inches mm inches mm inches mm inches mm inches kg lbs
NDL
-060 743 29.25
426 16.77 283 11.14 234 9.21
681 26.81 47.0 104
NDL
-070 743 29.25 681 26.81 47.0 104
NDL
-080 923 36.34 861 33.90 58.0 128
NDL
-090 923 36.34 861 33.90 58.0 128
NDL
-100 1098 43.23 1036 40.79 70.5 155
NDL
-110 1248 49.13 1186 46.69 82.5 182
NDL
-120 1498 58.97 1436 56.53 95.5 210
NDL
-130 1848 72.75 1786 70.31 117.5 259
DIMENSION 'A'
DIMENSION 'B'
DIMENSION 'C'
INLET
DIMENSION 'D'
OUTLET
DIMENSION 'E'

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number description
1 compressed air inlet
2 air outlet
3 column
4 exhaust silencer
5 exhaust valve ‘A’
6 inlet valve ‘A’
7 inlet valve ‘B’
2.3 product overview
number description
8 exhaust valve ‘B’
9shroud
10 control panel display
11 top cover
12 shroud latches
13 Gauge ‘A’
14 Gauge ‘B’

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2.4 typical system layout
IMPORTANT: It is essential that the system into which the unit is installed is tted with a pressure limiting/
relief device. This device should be installed between the compressor and the unit.
IMPORTANT: Inlet valves have a single direction ow. Any reverse ow of these valves can cause irreparable
damage to the valve diaphragms.
By-pass
(optional)
Recommended
inlet ltration
0.01 μm lter
1 μm lter
water separator
inlet ow
compressed
air outlet
compressed
air inlet
outlet ow
2.5 site location
When selecting an installation site for the unit, ensure the following conditions are met:
• Installation site should be located indoors on a at protected from the weather and other harmful conditions.
• The ambient temperature must not drop below 1.5°C (34.7°F) or exceed 50°C (122°F)
• The installation site should be level and able to support the weight of the product.
• Ensure sufcient space around the product, to allow access for operation and maintenance.

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2.6 operation
Do not allow the unit to ow air unless switched on and cycling.
Resulting effect could be desiccant contamination; requiring a desiccant service.
• Ensure all pipe work is connected as per the typical layout
• The unit is connected with a power supply as stated on the rating label.
• Ensure the inlet air pressure is with in limits as stated on the rating label on the product.
• Ensure the inlet air temperature is with in limits as stated on the rating label on the product.
• Slowly open the inlet ow and allow the unit to pressurize
• Turn on the power to the unit, the unit will display its’ status.
• Allow the unit to cycle at least 2 times before slowly opening the outlet ow.
• In case of using the Remote Start/Stop function, ensure external voltage is active.
This unit must be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric
shock by providing an escape wire for the electric current. This unit is equipped with a cord having a grounding
wire with an appropriate grounding plug.
The plug must be plugged into an outlet that is properly installed and grounded in accordance with all local
codes and ordinances.
Do not modify the plug provided; if it does not t the outlet, have the proper outlet installed by a qualied
electrician.
SERVICE LED
illuminated when
service required
DISPLAY PANEL
hours run/dewpoint
column a/b online
OPERATION LED
illuminated when
in operation

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2.7 remote start/stop control
To gain access to the remote start/stop feature:
• Remove the screws from the top cover and lift away from the dryer.
• Locate and action the two latches to open the shroud, this will then expose the controller
• Remove the insulation from the ying lead
• There are six wires; 1. Brown Wire - 24V DC Output
2. Blue Wire - 24V DC Output
3. Black Wire - Remote Start/Stop Input
4. White Wire - Alarm Input (Zero volt contact)
5. Green Wire - Alarm Output (Zero volt contact)
6. Red Wire - Remote Stop Input
• To set up the Remote Start/Stop control, remove/break the connection between the Brown and Black wires and connect
externally to a remote switch or relay.
• A 24V DC Output must be connected to the Black wire to enable the dryer to operate, if the connection is broken or if there is
no voltage the dryer will switch off and revert to standby mode, displaying “REMOTE STOP ACTIVE” on the controller display.
Under no circumstances should an external voltage or current be applied to any of these wires, as damage to
the control system will occur, negating the warranty.
Figure 4

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2.8 remote stop control
To gain access to the remote stop feature:
• Locate electrical connector 4 (see gure 3). Remove the screw from electrical connector.
• emove the electrical connectors cover.
• Using the connections available create a link between pins 1 and 4;
Pin 1: 24V DC + (Positive) Output
Pin 2: N/A
Pin 3: N/A
Pin 4: Remote Stop Input
• When the connection is made, i.e. the dryer has been remotely switched off, the dryer will stop cycling and go into standby
mode, displaying “REMOTE STOP ACTIVE”. If the connection is broken the dryer will operate as normall.
• Re-attach the electrical connectors cover and screw back onto the control plate.
• Using remote stop ensures the correct shut-down sequence is implemented.

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2.9 shutdown procedure
Close both the inlet and outlet valves ensure the dryer is completely isolated.
The dryer will still be pressurized! In order to depressurize the dryer; ensure the dryer is isolated from the
compressed air supply source.
• Cycle the dryer at least twice to ensure the dryer exhausts and is completely depressurized.
• When fully depressurized the ‘clicking’ of the exhaust valves will be heard but no air exhausted.
• When the dryer is fully depressurized, isolate from the electrical supply.

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3. monitoring dryer performance (when ES option is tted)
The pressure dew-point is displayed on the display of the control panel. When the dew-point displayed is equal to or better than -40°C
(-40°F) PDP the dryer will switch into energy saving mode and stop cycling, resulting in zero purge, but no interruption in ow. When
the dew-point degrades to -39°C (-40°F) or higher, then the dryer will restart cycling ensuring the dew-point is maintained at or better
than -40°C (-40°F).
If during normal operation, the unit fails to achieve dew-point (degrades above -30°C (-22°F )) the dewpoint alarm output will be
indicated on the front screen and the remote alarm output will activate.
The set levels for the ES and dewpoint alarm are adjustable and can be accessed by carefully removing the front bezel to expose the
PLC and adjustment buttons.
Hold buttons A & B down for 8 seconds to access the menu shown on page 17 display 8.
Adjusting Dewpoint Settings
Hold down button 1 and button 3 for ve seconds
In the DEWPOINT SETTING menu, hold down the white button until the word ‘Param’
appears at the bottom of the screen
Press button 4 once. The text will change to ‘Prog’.
The ‘ES SETPOINT’ line will begin to ash.
Using the buttons, adjust the ‘ES SETPOINT’ or ‘DWPNT ALARM’
Button 1 is used to move up a line.
Button 4 is used to move down a line.
Button 2 is used to lower the value
Button 3 is used to increase the value.
Following any changes to the conguration, it is essential that the program is
reverted back to ‘Param’.
Hold down the white button until ‘Prog’ is displayed at the bottom of the screen
Once ‘Prog’ appears, press button 4 once. The text will change back to ‘Param’.
Beware, this is only an illustrative example.
Dewpoint set-points and alarms are adjustable through the display panel.

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1 Power-up Display (only visable on power start-up for 10 seconds)
During power-up the screen will display:
Program number followed by the version
Total hours the product has operated
This screen can be displayed at any time by pressing and holding buttons 1 & 2 for
two seconds
2Normal Operation Display
During normal operation the screen will display:
Column ‘A’ and ‘B’ status, this will show as one of three sequences:
ONLINE - column is owing
PURGE - column is regenerating
READY - column is waiting to switch
Hours the dryer has run between services
3Service Re-set Display
When due a service, the product display will show ‘SERVICE REQUIRED’.
After servicing the product, you will be required to reset the service hours run
counter. When a magnet is held to the specied area on the dryer shroud for 10
seconds, the screen will display ‘SERVICE
RE-SET’. The hours run counter will revert back to zero.
4Normal Operation Display (ES Models)
During normal operation of an ES enabled product, the screen will constantly disply
the updated pressure dewpoint reading. This can be displayed in either degrees
celcius or degrees fahrenheit, depending on how the controller is congured.
Speak to the manufacturer about your requirements

16
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heatless desiccant air dryer
5Energy Saving Mode Active Display (ES Models)
While energy saving mode is active the screen will display:
• Column ‘A’ status and Column ‘B’ status, this will be shown as;
• ONLINE; this column is owing
• ‘ENERGY SAVING MODE’
• Hours the dryer has run between services/hours in ES mode
•
Constantly updated dew-point reading, this can be displayed in either
degrees celcius or degrees fahrenheit.
6Dew-point Sensor Fault Display (ES Models)
If a fault occurs with the dew-point sensor or the connection to the dew-point
sensor, the screen will display;
• Column ‘A’ status and Column ‘B’ status
• Hours the dryer has run between services/hours in ES mode
• ‘DEWPT SENSOR FAULT’
7Dew-point Alarm Display (ES Models)
If the dew-point sensor reading falls below the desired alarm limit the screen will
display;
• Column ‘A’ status and Column ‘B’ status
• Hours the dryer has run between services/hours in ES mode
• ‘DEWPOINT ALARM’
8Energy Savings Adjustment Display (ES Models)
When adjusting the ES set-point the screen will display;
‘ES SETPOINT’ - This is the point at which the dryer activates ES mode. If the
dewpoint is less than the ES set-point, ES mode activates. If the dewpoint is
greater than the ES set-point, ES mode deactivates.
‘DWPNT ALARM’ - this is the point that the dryer will activate the dewpoint alarm
and remote alarms.
‘ES OVERRIDE’ This is the maximum time in minutes that ES mode is continuously
active before the dryer switches columns and performs a regeneration cycle.

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3.1 maintenance
Maintenance operations should only be conducted once the system has been shut down and is fully
depressurized. All operations should be carried out by authorized and suitably trained personnel
• Isolate the unit from the compressed air and electrical supply ensuring the system is in a safe condition for maintenance to be
carried out.
• All connections must be removed with care, paying particular attention to the areas that become pressurized.
• All seals removed during maintenance operations must be replaced with new seals.
• Only certied and approved replacement parts should be used.
• Do not modify or adjust the control settings.
• Check all connections and sealing faces for cleanliness and secure seating prior to assembly.
• Ensure all components are re-tted to the product before operation.
• Check all connection and sealing faces for any leakage, if any found resolve and check again.
• Ensure the unit is left operating in a safe working condition after completion of maintenance
3.2 cleaning
Clean the equipment with a damp cloth only and avoid excessive moisture around any electrical connections.
If required a mild detergant can be used. Do not use abrasives/solvents as these may cause damage.
3.3 daily checks
• Check the unit for any signs of external damage.
• If the red service indicator is active, the unit must be serviced to ensure continued operation.
• Remove any loose dust or dirt from the unit, clean all surfaces that appear to have attracted unwanted contaminants.
• Ensure the unit is operating within the specication.
• Always check all connections for any leaks.
• Ensure all loose parts are removed or secured to the unit before operation.

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3.4 service schedule and breakdown
service year 1
(12 months)
year 2
(24 months)
year 3
(36 months)
year 4
(48 months)
year 5
(60 months)
year 6
(72 months)
year 7
(84 months)
year 8
(96 months)
Aüüüüüüüü
Büüüü
Cü ü
E
(ES MODELS ONLY) üüüüüüüü
Service A - Every 1 year (12 months)
Replace external exhaust silencer/mufer element
Applicable to all models
Service B - Every 2 year (24 months)
Replace desiccant cartridges
Replace top manifold gasket seals
Applicable to all models
Service C - Every 4 year (48 months)
Replace exhaust valves
Replace inlet valves
Replace outlet valves
Replace solenoid coils
Applicable to all models
Service E - Every 1 year (12 months)
Calibrate dew-point sensor
Applicable to ES models only
When contacting your service provider be sure to provide the part number and serial number of your dryer

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4. trouble shooting
problem problem caused solution
Poor dew-point
performance
Insufcient inlet pressure 4barg (58psig) minium inlet pressure required to operate, if not,
check and restore system pressure
Electrical fault Ensure the power is on and the dryer front panel is illuminated;
check the dryer is cycling correctly
Moist or contaminated desiccant Eliminate the cause of contamination, replace desiccant cartridges
(do not re-use).
Excessive inlet air temperature Check against the technical specication
Insufcient purge air
Purge incorrectly adjusted, consult the service personnel to adjust
settings (factory pre-set). Consult Service Technician to adjust as per
site condition
Exhaust silencer blocked Replace exhaust silencer/mufer element.
Failure of dryer
to cycle
controller not functioning correctly ensure the controller is powered up, check the on screen column
status to ensure it is powering the solenoid valves during operation
insufcient inlet pressure 4barg (58psig) minium inlet pressure required to operate, if not,
check and restore system pressure
controller not illuminated Check power supply to the dryer, check fuse and replace.
failure to de-pressurize when cycling Solenoid valve not functioning correctly; if there is power to the coil,
replace valve. Consult PLC display
outlet ow stops Check inlet air supply
failure to initialize dryer Switch off and restart dryer. Ensure dryer is pressurized before
powering up to allow the dryer to initialize before operation.
erratic air ow from exhaust Faulty or damaged valves, carry out service

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5. process and instrumentation diagram
SOLENOID
INLET ‘B’
VALVE
SOLENOID
INLET ‘A’
VALVE
TO BUFFER
PRESSURE
COLUMN ‘A’
GAUGES
PRESSURE
COLUMN ‘B’
GAUGES