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17

heatless desiccant air dryer

D2

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 certified 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-fitted 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 specification.

• 

Always check all connections for any leaks.

• 

Ensure all loose parts are removed or secured to the unit before operation.

Summary of Contents for D2

Page 1: ...User guide heatless desiccant air dryer revision 2022 116 document 17 100 0120 2022 Air Gas Solutions LLC www n psi co uk...

Page 2: ...uccessful 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 s...

Page 3: ...uct 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 monitor...

Page 4: ...97 7700 internet www n psi co uk email sales n psi co uk usa nano purification solutions inc address 5509 David Cox Road Charlotte NC 28269 USA telephone 1 704 897 2182 internet www n psi com email su...

Page 5: ...to the product Any modifications 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...

Page 6: ...O Class 2 at recommended max rated flow at 7 Barg and 25 C inlet see correction factors 2 1 flow rates model inlet flow rate connection Nm3 hr scfm inlet outlet NDL 060 58 34 1 1 BSPP or NPT 1 BSPP or...

Page 7: ...3 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 4...

Page 8: ...ompressed 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 9 shroud 10 control panel displ...

Page 9: ...l Recommended inlet filtration 0 01 m filter 1 m filter water separator inlet flow compressed air outlet compressed air inlet outlet flow 2 5 site location When selecting an installation site for the...

Page 10: ...its status Allow the unit to cycle at least 2 times before slowly opening the outlet flow In case of using the Remote Start Stop function ensure external voltage is active This unit must be grounded I...

Page 11: ...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...

Page 12: ...ink 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 a...

Page 13: ...rized 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...

Page 14: ...g 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...

Page 15: ...ng to switch Hours the dryer has run between services 3 Service Re set Display When due a service the product display will show SERVICE REQUIRED After servicing the product you will be required to res...

Page 16: ...services hours in ES mode DEWPT SENSOR FAULT 7 Dew 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...

Page 17: ...seating prior to assembly Ensure all components are re fitted to the product before operation Check all connection and sealing faces for any leakage if any found resolve and check again Ensure the uni...

Page 18: ...muffler 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 Repl...

Page 19: ...per site condition Exhaust silencer blocked Replace exhaust silencer muffler element Failure of dryer to cycle controller not functioning correctly ensure the controller is powered up check the on scr...

Page 20: ...20 heatless desiccant air dryer D2 5 process and instrumentation diagram SOLENOID INLET B VALVE SOLENOID INLET A VALVE TO BUFFER PRESSURE COLUMN A GAUGES PRESSURE COLUMN B GAUGES...

Page 21: ...21 heatless desiccant air dryer D2 6 wiring diagram...

Page 22: ...22 heatless desiccant air dryer D2 notes 22...

Page 23: ...23 heatless desiccant air dryer D2 notes...

Page 24: ...2182 support n psi com www n psi com nano purification solutions st catharines ontario canada tel 1 905 684 6266 support n psi com www n psi com nano purification solutions new bethlehem pennsylvania...

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