NANO DXR15-A Instruction Book

Refrigerant dryers

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NANO

Refrigerant dryers

DXR15-A,DXR21-A,DXR36-A,DXR45-A,DXR60-A,DXR72-A

DXR96-A,DXR120-A,DXR140-A,DXR170-A,DXR200-A,DXR240-A

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Page 1 NANO Refrigerant dryers DXR15-A,DXR21-A,DXR36-A,DXR45-A,DXR60-A,DXR72-A DXR96-A,DXR120-A,DXR140-A,DXR170-A,DXR200-A,DXR240-A Instruction book...
Page 3 NANO Refrigerant dryers DXR15-A,DXR21-A,DXR36-A,DXR45-A,DXR60-A DXR72-A,DXR96-A,DXR120-A,DXR140-A,DXR170-A DXR200-A,DXR240-A Instruction book Original instructions COPYRIGHT NOTICE Any unauthorized use or copying of the contents or any part thereof is prohibited. This applies in particular to trademarks, model denominations, part numbers and drawings. This instruction book is valid for CE as well as non-CE labelled machines. It meets the requirements for instructions specified by the applicable European directives as identified in the Declaration of Conformity.
Page 4: Table Of Contents
Instruction book Table of contents Safety precautions......................4 Safety icons..........................4 General safety precautions....................4 Safety precautions during installation................5 Safety precautions during operation..................6 Safety precautions during maintenance or repair.............. 7 Dismantling and disposal......................8 General description...................... 10 Introduction..........................10 Air system..........................12 Refrigerant system.........................
Page 5 Instruction book Digital controller......................21 Operating instructions....................23 Warnings........................... 23 Dryer control panel....................... 23 Starting.............................23 During operation........................24 Stopping.............................24 Maintenance instructions.................... 26 Device settings......................27 Problem solving......................28 Technical data....................... 31 Reference conditions and limitations.................. 31 Air dryer data...........................31 Correction factor........................35 2205 6959 19...
Page 6: Safety Precautions
Instruction book Safety precautions Safety icons Explanation Note: Important note Warning: Warning Danger: Danger to life General safety precautions General precautions Warning: All responsibility for any damage or injury resulting from neglecting these precautions, or non-observance of the normal caution and care required for installation, operation, maintenance and repair, even if not expressly stated, will be disclaimed by the manufacturer.
Page 7: Safety Precautions During Installation
Instruction book Safety precautions during installation Precautions during installation 1. The dryer must only be lifted using suitable equipment and in accordance with the applicable safety regulations. Loose or pivoting parts must be securely fastened before lifting. It is strictly forbidden to dwell or stay in the risk zone under a lifted load.
Page 8: Safety Precautions During Operation
Instruction book 16. If no safety valve is present in the air net close to the desiccant dryer (e.g. safety valve of compressor), full flow safety valves must be installed on the dryer vessels. 17. If the maximum pressure of the compressor is higher than the design pressure of the dryer, a full flow safety valve must be installed between the compressor and the dryer in order to blow off the excessive pressure.
Page 9: Safety Precautions During Maintenance Or Repair
Instruction book 9. If warm cooling air from dryers is used in air heating systems, e.g. to warm up a working area, take precautions against air pollution and possible contamination of the breathing air. If warm cooling air from dryers is used in air heating systems, e.g. to warm up a working area, take precautions against air pollution and possible contamination of the breathing air.
Page 10: Dismantling And Disposal
Instruction book 15. All regulating and safety devices shall be maintained with due care to ensure that they function properly. They may not be put out of action. 16. Before clearing the machine for use after maintenance or overhaul, check that operating pressures, temperatures and time settings are correct.
Page 11 Instruction book The equipment is labelled in accordance with the European Directive 2012/19/EU with the crossed- out wheelie bin symbol. At the end of life-time of the electric and electronic equipment (EEE) it must be taken to separate collection. For more information check with your local waste authority, customer center or distributor. Disposal of other used material Used filters or any other used material (e.g.
Page 12: General Description
Instruction book General description Introduction General views Figure 1:Front view DXR15-DXR96 2205 6959 19...
Page 13 Instruction book Figure 2:Front view DXR120-DXR240 2205 6959 19...
Page 14: Air System
Instruction book Figure 3: Rear view Reference Description Air outlet Air inlet Condensate drain outlet Dewpoint indicator Dryer on/off switch Electrical cable outlet Introduction The air dryers remove moisture from compressed air by cooling the air to near freezing point. This causes water to condense.
Page 15: Refrigerant System
Instruction book Reference Description Air inlet Air outlet Compressor Hot gas valve(on DXR15-240) High pressure switch(on DXR36-240) Air condenser Fan motor Filter dryer Expansion capillary(on DXR15-240) Evaporator Liquid separator(on DXR120-240) Air-air exchanger Separator Drain valve Digital controller Description Compressed air enters heat exchanger (10) and is cooled by the outgoing cold, dried air. Water in the incoming air starts to condense.
Page 16: Automatic Regulation System
Instruction book Reference Description Air inlet Air outlet Compressor Hot gas valve(on DXR15-240) High pressure switch(on DXR36-240) Air condenser Fan motor Filter dryer Expansion capillary(on DXR15-240) Evaporator Liquid separator(on DXR120-240) Air-air exchanger Separator Drain valve Digital controller Description Compressor (1) delivers hot, high-pressure refrigerant gas which flows through condenser (4) where most of the refrigerant condenses.
Page 17: Electrical System
Instruction book Reference Description Compressor Hot gas valve(on DXR15-240) High pressure switch(on DXR36-240) Air condenser Fan motor Filter dryer Expansion capillary(on DXR15-240) Evaporator Liquid separator(on DXR120-240) Air-air exchanger Separator Drain valve Digital controller Description The condenser pressure must be kept as constant as possible to obtain stable operation. The digital controller (13) therefore stops and starts the cooling fan (5).
Page 18 Instruction book Figure 4: Drain system Time settings of time drain Model MIC-A 1. Switch on the power. Note: the voltage must comply with the voltage mentioned on the coil. 2. MIC-A will start with its pre-set time setting of 1min OFF and 1 sec ON time. 3.
Page 19: Installation
Instruction book Installation Dimension drawings The dimension drawings can be found in the technical documentation, delivered with the dryer. Dimension drawing Model 9843041985 DXR15-A 9843041986 DXR21-A 9843041987 DXR36-A 9843041988 DXR45-A 9843041989 DXR60-A 9843041990 DXR72-A 9843041991 DXR96-A 9843041992 DXR120-A 9843041993 DXR140-A...
Page 20: Installation Proposal
Instruction book Instructions 1. Provide an isolating switch. For the correct location of the isolating switch, see Installation proposal. 2. Check that the cables and wires inside the electric cabinet are clamped tight to their terminals. 3. Check the fuses and the setting of the upstream overload relay. 4.
Page 21 Instruction book Example of compressor/dryer room Figure 5: Installation proposal, example Reference Description Install the refrigerant air dryer on a level floor, suitable for its weight. Install the dryer where the ambient air is as clean as possible and where the temperature of the air will never exceed the limits.
Page 22: Pictographs
Instruction book Reference Description Provide an air inlet valve and outlet valve. If a bypass pipe and valve are installed, the dryer can be serviced while it is bypassed. Location of isolating switch and fuses. Minimum distance 1.5 m (58.5 in) (Front, left and right). Pictographs Pictographs Reference Description...
Page 23: Digital Controller
Instruction book Digital controller Dew point indicator Name Symbol State Meaning Machine running Run time time Warning symbol Break down Fan stop Flashing Fan delay Fan sysmbol Fan work Unlock Lock symbol Lock Set symbol Set mode Number Temp/day Common operation 1.
Page 24 Instruction book Alarm display Normal Flashing alarm Notes Possible causes Observations operation Warning icon E0 Flashing Data access error Restart controller flashing Evaporation Connect Warning icon E1 Flashing sensor is not evaporation flashing connected sensor Condensation Connect Warning icon E2 Flashing sensor is not condensation flashing...
Page 25: Operating Instructions
Instruction book Operating instructions Warnings Safety precautions The operator must apply all relevant safety precautions, including those mentioned in this manual. Altitude operation Consult your supplier if operating above 3000 m (9843 ft). Dryer control panel Description Reference Description Dewpoint indicator Dryer on/off switch Starting Attention...
Page 26: During Operation
Instruction book Procedure 1. If installed, close the dryer by-pass valve. See Installation proposal. 2. Press dryer on/off switch (2). 3. Open dryer air inlet valve (customer's installation). 4. Approx. 5 minutes later, open dryer air outlet valve (customer's installation). 5.
Page 27 Instruction book Note: To keep the compressed air net free of condensate, start the dryer before starting the compressor and stop the compressor before stopping the dryer. Procedure 1. Close the dryer inlet and outlet valve (customer’s installation).. 2. Press dryer on/off switch (2) and the dryer will stop. 3.
Page 28: Maintenance Instructions
Instruction book Maintenance instructions Safety precautions Before starting any maintenance or repair work, close the air inlet and outlet valves and switch off the voltage. When removing the side panels of the dryer, be aware that internal elements such as the pipes can be hot.
Page 29: Device Settings
Instruction book Device settings Regulating and safety devices The regulating and safety devices are factory-adjusted to obtain optimum performance of the dryer. Do not alter the setting of any of the devices. 2205 6959 19...
Page 30: Problem Solving
Instruction book Problem solving Condensate drain and air inlet and outlet valves, example Reference Description Location dryer air inlet and air outlet Condensate drain Dryer on/off switch Isolating switch Attention Warning: Use only authorized parts. Any damage or malfunction caused by the use of unauthorized parts is not covered by Warranty or Product Liability.
Page 31 Instruction book 3. Move dryer on/off switch (3) to position 0 to switch off the voltage. See section Stopping. 4. Open the isolating switch (4) to prevent an accidental start. Warning: The air inlet and outlet valves (1) can be locked during maintenance or repair work as follows: •...
Page 32 Instruction book Condition Fault Remedy The condensate drain Drain system clogged Have system inspected. remains inoperative Hot gas by-pass valve Evaporator pressure is too Have hot gas by-pass valve incorrectly set or out of high or too low at unload adjusted.
Page 33: Technical Data
°C Maximum compressed air inlet °C temperature (1) Please check name plate for the working pressure (located at the rear side) Air dryer data Performance data Unit DXR15-A DXR21-A DXR36-A DXR45-A Volume flow at dryer inlet Pressure drop 0.28 0.28 0.28...
Page 34 Instruction book Unit DXR15-A DXR21-A DXR36-A DXR45-A Sound level dB(A) Refrigerant type R134a R134a R410A R410A Total amount Net mass (approx.) Net dimensions (approx.) Length Width Height Packing weight (approx.) Packing dimensions (approx.) Length Width Height Unit DXR60-A DXR72-A DXR96-A...
Page 35 1020 1126 1126 Packing weight (approx.) Packing dimensions (approx.) Length 1070 1070 Width Height 1156 1156 1256 1256 Electrical data Unit DXR15-A DXR21-A DXR36-A DXR45-A Tension- 230/1/50 230/1/50 Phases- V/Ph/Hz 230/1/50 230/1/50 Frequency Maximum power 1030 1270 (Amb.T.45°C; Inlet T.55°C)
Page 36 2650 2900 Inlet T.35°C) Nominal current amps 12.5 16.6 Minimum cable size (max cable length 10 mt) Fan motor protection Piping Conditions Unit DXR15-A DXR21-A DXR36-A DXR45-A Air connections (Male) G3/4" G1" G1" G1.5" Condensate drain (rubber pipe) Unit DXR60-A...
Page 37: Correction Factor
Instruction book Unit DXR140-A DXR170-A DXR200-A DXR240-A Air connections (Male) G2.5" G2.5" G2.5" G2.5" Condensate drain (rubber pipe) Correction factor Correction factor K = A*B*C (A) Ambient temperature (°C) Correction factor 0.91 0.81 0.72 0.61 (B) Inlet temperature (°C) Correction factor 0.82 0.69 0.58...
Page 40 Experience. Customer. Service. www.n-psi.com...

This manual is also suitable for:

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