NANO D-Series User Manual

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D-Series

1

HEATLESS COMPRESSED AIR DRYER

MAINTENANCE & SERVICE MANUAL

www.n-psi.com

NDL-060

NDL-070

NDL-080

NDL-090

NDL-100

NDL-110

NDL-120

NDL-130

Table of Contents

Questions and Answers:

J
Jerry FigueroaAug 2, 2025
What to do if NANO D-Series fails to cycle?
- L
  Lori GarciaAug 3, 2025
  If your NANO Dehumidifier isn't cycling, here's what to check: * First, make sure the controller is getting power and that the on-screen status shows it's powering the solenoid valves during normal operation. * Next, ensure the inlet pressure is at least 4 barg; adjust if necessary. * Also, check if the unit fails to depressurize when cycling, the solenoid valve might not be working. If the coil has power but isn't clicking, consider replacing the valve. * Finally, verify the inlet air supply if the outlet flow stops.
C
collierlaurenAug 7, 2025
Why NANO D-Series Dehumidifier has poor dew point performance?
- A
  Alexis GreenAug 8, 2025
  Poor dew point performance in your NANO Dehumidifier can stem from several causes: * Insufficient inlet pressure: Ensure it's at least 4 bar and adjust if needed. * Electrical fault: Check that the power is on, the front panel is lit, and the dryer is cycling correctly. * Moist or contaminated desiccant: Find and eliminate the source of contamination, and replace the cartridges (do not reuse). * High air consumption: Make sure the dryer's performance matches the system's air consumption needs. * Excessive inlet air temperature: Verify it against the technical specifications. * Insufficient purge air: Have service personnel adjust the settings, as they are factory pre-set. * Blocked exhaust silencer: Consult service personnel.
T
toddsandersAug 12, 2025
What to do if NANO Dehumidifier constantly depressurizes?
- M
  Melanie WrightAug 13, 2025
  If your NANO Dehumidifier is constantly depressurizing, try the following: * First, switch off and restart the dryer. Make sure it's pressurized before powering it on, allowing it to initialize before starting operation. * If there's erratic airflow from the exhaust, it could indicate a faulty or damaged valve, requiring service.
Y
ypetersonAug 17, 2025
What to do if my NANO D-Series Dehumidifier is not cycling?
- S
  sandrathomasAug 17, 2025
  If your NANO Dehumidifier isn't cycling, first ensure the controller is powered and check the on-screen column status to confirm it's powering the solenoid valves during normal operation. Also, check the power to the unit and the fuse (T2A 250V) located at Fig 8.A. Insufficient inlet pressure could also be the culprit; ensure it's at least 4 barg and adjust the inlet pressure settings if needed. A failure to de-pressurize during cycling could indicate a solenoid valve malfunction. If the coil has power, replace the valve. A working valve should produce an audible click when energized. Finally, check the inlet air supply if the outlet flow stops.
K
Katherine ScottAug 22, 2025
Why does my NANO Dehumidifier have poor dew point performance?
- G
  Gina FoxAug 22, 2025
  If your NANO Dehumidifier shows poor dew point performance, start by checking the inlet pressure; it should be a minimum of 4 barg. Adjust the inlet pressure settings if necessary. Ensure the power is on, the dryer front panel is illuminated, and the dryer is cycling correctly. If the desiccant is moist or contaminated, identify and eliminate the source of contamination and replace the cartridges, avoiding reuse. Confirm that the dryer's performance matches the required system air consumption. Verify the inlet air temperature against the technical specifications. Insufficient purge air can also cause this issue; consult service personnel to adjust the settings, as they are factory pre-set. Lastly, a blocked exhaust silencer may be the cause, requiring assistance from service personnel.
D
Debra MorrisAug 27, 2025
What to do if my NANO D-Series has constant depressurization?
- E
  Elizabeth BurchAug 28, 2025
  If your NANO Dehumidifier is constantly depressurizing, try switching it off and restarting it. Make sure the dryer is pressurized before powering it on to allow it to initialize before starting operation. Erratic airflow from the exhaust may indicate a faulty or damaged valve, requiring service.

NANO D-Series Specifications

General

Brand	NANO
Model	D-Series
Category	Dehumidifier
Language	English

Summary

GENERAL INFORMATION

Copyright

Details the copyright ownership and usage restrictions for the manual.

Document Introduction

Outlines the purpose and scope of this service manual.

General Safety

Critical safety warnings and precautions for operating and maintaining the dryer.

Warranty Guidelines

Explains the dryer's warranty period and requirements for service parts.

SERVICE INTERVALS

PRODUCT ASSEMBLY (NDL-060 to NDL-090)

PRODUCT ASSEMBLY (NDL-100 to NDL-130)

RECOMMENDED TOOLS

DRYER SHUT DOWN PROCEDURE

SERVICE 'A' INSTRUCTIONS: Replacing Desiccant Cartridges (NDL-060 to NDL-120)

SERVICE 'A' INSTRUCTIONS: Replacing Desiccant Cartridges (NDL-130 Only)

SERVICE 'B' INSTRUCTIONS: Replacing Inlet Control and Exhaust Valves (NDL-060 to NDL-90)

SERVICE 'B' INSTRUCTIONS: Replacing Inlet Valves (NDL-100 to NDL-130 Only)

SERVICE 'B' INSTRUCTIONS: Replacing Inlet Control and Exhaust Valves (NDL-100 to NDL-130)

SERVICE 'B' INSTRUCTIONS: Replacing Outlet Valves (NDL-060 to NDL-130)

SERVICE 'C' INSTRUCTIONS: ES Models Only

RESETTING THE DRYER CONTROLLER

MANIFOLD TIGHTENING SEQUENCES

DRYER START-UP PROCEDURE

OTHER DRYER CHECKS & NON-SERVICEABLE ITEMS

DAILY CHECKS

Routine daily inspections to ensure dryer performance and identify issues.

MAINTENANCE GUIDELINES

General rules for safe and effective dryer maintenance operations.

TROUBLESHOOTING

REFERENCE TO KNOWN ISSUE

Specific known issues with their causes and solutions, including piping and electrical.

Additional Items

Concerns related to non-authorized parts, untrained personnel, and improper operation.

SERVICE RECORD & NOTES

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