background image

27

cycling refrigerated air dryer

R

1

Cleaning the drain Y-strainer*

General comments 

The solenoid drain is protected by a strainer to prevent damage to the solenoid valve seals from metal parti-

cles or dust. This strainer must be cleaned 1 week after the first start-up and then once per month. If this is 

not done, the strainer will clog and it will not be possible to purge the system correctly. Liquid phase water 

will appear in the compressed air network. 

Procedure 

1.  Close the manual valve on the purge (see the refrigeration/pneumatic circuit diagram). 

2.  Unscrew the strainer lock nut. 

3.  Withdraw the metal mesh, clean and refit. 

4.  Check the condition of the seal and replace if necessary. 

5.  Tighten the strainer lock nut. 

6.  Open the manual valve on the purge line.

*You must comply with the recommendations at the beginning of this chapter.

 

The solenoid valve must always be protected by a filter to ensure that solid particles do not prevent it from 

opening and closing correctly.  If particles do get through the filter and cause faulty operation of the solenoid 

purge valve, it is must be dismantled and cleaned.

Procedure 

1.  Close the manual valve on the purge line (see refrigeration/pneumatic circuit diagram). 

2.  Disconnect the solenoid valve power supply. 

3.  Disconnect the solenoid valve from the pipework and clamp it in a vice. 

4.  Unscrew the coil lock nut and take it off the plunger.

5.  Unscrew the plunger from the valve seat.  

6.  Check the O ring and the other components. Clean carefully.   

7.  Re-assemble the valve by reversing operations 1 to 5.    

 

Do not over tighten the coil lock nut as this could prevent the valve from closing.  

8.    Refit the solenoid valve to the pipework, respecting the direction of the air flow indicated by an arrow on 

the body. 

9.     Reconnect the power supply to the solenoid purge valve.  

10.   Open the manual valve on the purge line 

*You must comply with the recommendations at the beginning of this chapter.

Solenoid valve maintenance

*

Summary of Contents for NXC 0020

Page 1: ...NXC series cycling refrigerated air dryer user guide...

Page 2: ...e 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...

Page 3: ...principle 11 2 2 machine code identification 2 3 operating principle of the dryer 12 2 4 installation 13 2 5 by pass 15 2 6 operation 16 2 7 use 17 2 8 controller instructions 18 2 9 safety system 21...

Page 4: ...icular 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 nano purificati...

Page 5: ...e errors and is likely to be modified with respect to technical features All products are supplied with a 30 months manufacturer s warranty from the date of shipment from the factory or 24 months from...

Page 6: ...ed in this manual Do not climb on the unit Operate the unit after it is properly installed in the recommended position Operate the unit after it is properly installed in the recommended position Do no...

Page 7: ...nical institution for similar equipment or interventions under the authority of competent personnel The refrigeration technician is authorized to carry out only the specific operations stated in this...

Page 8: ...s Failing the above you risk suffering facial injuries or even fatal injuries You also run the risk of the dryer the products plates or the installation breaking down or causing a serious incident Oth...

Page 9: ...he ones that have been ordered Any damage or complaints must be reported to nano purification solutions and declared to the carrier or shipper before the carrier leaves premises when product is delive...

Page 10: ...ure of the unit e g polystyrene or board sheet A Ensure that the forks of the truck jut out min 4 inches B from the unit Example of lifting using slings Place the slings as shown Place the rigid struc...

Page 11: ...m age to the dryer and void warranty water NXC CYCLING REFRIGERATED DRYER condensate separator pre filter post filter treated compressed air oil by pass valve air compressor refrigerated dryer downstr...

Page 12: ...12 cycling refrigerated air dryer R1 Schematic diagram NXC 0020 to NXC 0110 2 3 operating principle of the dryer NXC 0130 to NXC 2000...

Page 13: ...ate of dehumidification and the service life of the dryer Allow 5 feet of clear space around the dryer to facilitate maintenance operations and repairs 4 The ambient temperature where the air dryer is...

Page 14: ...irculation of the compressed air after inspection of the inlet and outlet of the AIR DRYER Assembling the piping in the wrong direction causes the AIR DRYER to malfunction 2 The compressed air piping...

Page 15: ...formation will vary by model Refer to the drawing of your specific model air dryer and consult with a compressed air piping contractor for appropriate installation no name qty 1 union NPT thread 3 pcs...

Page 16: ...pection of the components 1 Is there a problem in the air system and electric circuit 2 Has the by pass circuit valve optional been closed 3 Is the purge system valve open 4 Is the compressed air pres...

Page 17: ...llowing key points will optimize daily use Always turn your dryer ON 10 to 15 minutes before the air compressor This will ensure that the heat exchanger has been cooled to a proper level to handle the...

Page 18: ...than nominal capacity or in a particularly hot environment Adjustment Press the set button for one second the digital display will show set and then the current set point will be flashing Use the Up a...

Page 19: ...The display will exit the parameter setting menu Note that if this last operation of holding the set button for 3 seconds is not completed all changes to parameters will revert to previous values and...

Page 20: ...ing or partial expansion The objective of properly adjusting the purge duration is simply to limit the loss compressed air to the absolute minimum required for this operation A properly adjusted purgi...

Page 21: ...wn refer to corrective maintenance or contact nano purification solutions 2 Press the start button to restart the dryer 2 9 safety system Daily maintenance Check that the drain normally evacuates the...

Page 22: ...air inlet temperature because pressure increases if temperature is high 2 R 407c Below 60 psi Refill refrigeration gas if there is insufficient volume check for any leakage Above 140 psi Remove a cert...

Page 23: ...t the refrigeration circuit the state of pipework and look for oil slicks which can indicate a loss of refrigerant gas pressure Test the pipework connections Test the condition of the electrical conta...

Page 24: ...ves CLOSED and the by pass valve OPEN Depressurize the dryer by pressing the drain manual override until internal pressure is zero After carrying out the three procedures above proceed as specified be...

Page 25: ...NXC 2000 1 Replace the upper panel by sliding it forwards to engage the lock tabs Screw in the rear screws of the upper panel Otherwise replace the front panel by sliding it downwards to engage the l...

Page 26: ...s internal layout no description no description 1 thermal mass 6 low pressure switch 2 compressor 7 high pressure switch 3 condenser 8 drain solenoid valve 4 condenser fan 9 pressure gauge 5 fan press...

Page 27: ...rotected by a filter to ensure that solid particles do not prevent it from opening and closing correctly If particles do get through the filter and cause faulty operation of the solenoid purge valve i...

Page 28: ...OFF See note E B Excessive drop in compressed air pressure Compressed air flow rate too high Pressure downstream from the dryer lower than the expected value Reduce the compressed air flow rate Conden...

Page 29: ...power supply had failed Repair or replace the fan Press the red re set button on the pressure controller Ambient temperature too high Ambient air temperature conditions higher than maximum authorized...

Page 30: ...and high ambient temperature at the same time The compressor head and body are very hot The compressor stops and tries to start up again a few seconds later Shut the compressor down and adjust compre...

Page 31: ...nsions A B C D E F G in mm in mm in mm in mm in mm in mm in mm NXC 0020 16 93 430 22 24 565 15 98 406 7 80 198 9 41 239 4 57 116 20 67 525 NXC 0030 18 19 462 25 79 655 18 39 467 5 91 150 10 91 277 7 6...

Page 32: ...6 540 9 92 252 12 83 326 6 34 161 28 56 726 NXC 0130 29 13 740 36 46 926 24 33 618 10 24 260 15 71 399 11 08 282 34 57 878 NXC 0165 29 13 740 36 46 926 24 33 618 10 24 260 15 71 399 11 08 282 34 57 87...

Page 33: ...cling refrigerated air dryer R1 model dimensions A B C D E F G H in mm in mm in mm in mm in mm in mm in mm in mm NXC 0500 29 0 736 47 3 1202 42 3 1074 7 8 197 5 8 148 10 7 271 45 5 1156 16 0 407 6 NXC...

Page 34: ...0850 model dimensions A B C D E F G H in mm in mm in mm in mm in mm in mm in mm in mm NXC 0650 29 1 740 59 1 1500 65 9 1674 12 0 305 16 1 408 8 5 216 50 8 1290 21 9 556 NXC 0850 29 1 740 59 1 1500 65...

Page 35: ...C D E F G H in mm in mm in mm in mm in mm in mm in mm in mm NXC 1050 43 7 1110 59 1 1500 56 1 1425 14 9 379 5 16 1 408 5 16 2 411 55 1397 21 9 556 5 NXC 1300 43 7 1110 59 1 1500 56 1 1425 14 9 379 5 1...

Page 36: ...l dimensions A B C D E F G H in mm in mm in mm in mm in mm in mm in mm in mm NXC 1600 43 7 1110 59 1 1500 73 8 1875 13 1 331 5 16 1 408 5 19 6 497 56 5 1435 1 21 9 556 5 NXC 2000 43 7 1110 59 1 1500 7...

Page 37: ...me parts are subject to change without prior notice no description part no no description part no 1 front panel NXC0020 1 301 10 air cooled condenser SC400 MAST05 2 controller C0104 220N 11 refrigeran...

Page 38: ...dle partition plate NXC0030 1 901 4 suction pressure gauge A1102 040N 14 evaporator NXC 0030 5 expansion valve SAV 05 A1001 139N evaporator NXC 0045 6 refrigerant filter A1001 087N 15 bottom base asse...

Page 39: ...5 1 601 15 evaporator NXC 0065 5 condenser fan motor A0601 033N evaporator NXC 0090 6 suction pressure gauge A1102 040N evaporator NXC 0110 7 air cooled condenser SC400 MAST01 16 side panel right NXC0...

Page 40: ...6 suction pressure gauge A1102 040N evaporator NXC 0165 7 air cooled condenser SC400 MAST02 19 bottom base assembly NXC0130 1 100 8 top panel NXC0130 1 701 20 side panel right NXC0130 1 401 9 back pa...

Page 41: ...17 bottom base assembly NXC0200 1 100 7 suction pressure gauge A1102 040N 18 compressor contactor C0108 007N 8 top panel NXC0200 1 701 low pressure switch A0802 061N 9 back panel assembly NXC0200 1 5...

Page 42: ...6 air cooled condenser SC400 MAST03 16 side panel right NXC0200 1 401 7 suction pressure gauge A1102 040N 17 bottom base assembly NXC0200 1 100 8 top panel NXC0200 1 701 18 compressor contactor C0108...

Page 43: ...late NXC0500 1 901 5 side panel left NXC0500 1 601 18 evaporator unit SH400 NXC 0500 4 6 fan motor A0702 045N 19 expansion valve A1001 143N 7 filter A1001 020N 20 side panel right NXC0500 1 401 8 cond...

Page 44: ...NXC 0850 4 6 left panel L NXC0650 1 601 20 bottom base assembly NXC0650 1 100 7 pressure gauge A1102 040N 21 filter A1001 020N 8 top panel NXC0650 1 701 22 fan pressure switch A0802 054N 9 fan motor...

Page 45: ...d valve A0904 089N 6 pressure gauge A1102 040N 20 right panel L NXC1050 1 401 7 left panel L NXC1050 1 601 21 evaporator unit NXC 1050 SH400 NXC 1050 4 8 fan motor A0702 045N evaporator unit NXC 1300...

Page 46: ...089N 6 top panel NXC1600 1 701 20 right panel L NXC1600 1 401 7 pressure gauge 21 evaporator unit NXC 1600 SH400 NXC 1600 4 8 left panel L NXC1600 1 601 evaporator units NXC 2000 SH400 NXC 2000 4 9 fa...

Page 47: ...47 cycling refrigerated air dryer R1 3 3 electrical wirings NXC 0020 115V 1 60 NXC 0030 to NXC 0045 115V 1 60Hz...

Page 48: ...48 cycling refrigerated air dryer R1 NXC 0065 to NXC 0110 115V 1 60 NXC 0130 to NXC 0165 115V 1 60Hz...

Page 49: ...49 cycling refrigerated air dryer R1 NXC 0200 to NXC 0400 230V 1 60 NXC 0200 to NXC 0400 460V 3 60Hz...

Page 50: ...50 cycling refrigerated air dryer R1 NXC 0500 to NXC 0850 460V 3 60Hz NXC 1050 to NXC 2000 460V 3 60Hz...

Page 51: ...V 60Hz 1 33 11 90 1 232 R407c 302 NXC 0200 1 230V 60Hz 2 12 10 70 2 232 R407c 386 NXC 0200 3 460V 60Hz 1 83 4 63 2 232 R134a 386 NXC 0265 1 230V 60Hz 2 12 10 70 2 232 R407c 386 NXC 0265 3 460V 60Hz 1...

Page 52: ...ssary Apply artificial respiration if breathing has ceased or shows signs of failing In the event of cardiac arrest apply external cardiac massage Obtain immediate medical attention Skin Contact Thaw...

Page 53: ...spillages Ventilate area Contain spillages with sand earth or any suitable adsorbent material Prevent liquid from entering drains sewers basements and workpits since the vapor may create a suffocatin...

Page 54: ...COM HFC 125 1 1 1 2 Tetrafluoroethane 1000 4240 OES HFC 134a PHYSICAL AND CHEMICAL PROPERTIES Form liquified gas Color colorless Odor slight ethereal Boiling Point Deg C 44 3 to 37 1 boiling range Va...

Page 55: ...rial produced in wholly contained systems High tonnage material used in open systems Vapor Persistence and Degradation HFC 32 Decomposed comparatively rapidly in the lower atmosphere troposphere Atmos...

Page 56: ...ng Name REFRIGERANT GAS R 407C ROAD RAIL ADR RID Class 2 ADR RID Item No 2A ADR Sin 3340 REGULATORY INFORMATION Not Classified as Hazardous to Users GLOSSARY OES Occupational Exposure Standard UK HSE...

Page 57: ...n the case of freeze burns After contact with skin wash immediately with plenty of warm water If irritation or blistering occur obtain medical attention Eye Contact Immediately irrigate with eyewash s...

Page 58: ...w the occupational exposure limit can be achieved by good occupational hygiene practice The vapor is heavier than air high concentrations may be produced at low levels where general ventilation is poo...

Page 59: ...if in contact with alkali metals and alkaline earth metals sodium potassium barium Hazardous Decomposition Product s hydrogen fluoride by thermal decomposition and hydrolysis TOXICOLOGICAL INFORMATION...

Page 60: ...ility which is equipped to absorb and neutralise acid gases and other toxic processing products TRANSPORT INFORMATION UN No 3159 AIR ICAO IATA primary 2 2 SEA IMDG primary 2 2 Marine Pollutant Not cla...

Page 61: ...notes...

Page 62: ...notes...

Page 63: ...dryers F series industrial filters R series refrigerated dryers B series breathing air purifiers GEN2 series nitrogen generators V series oil vapor removal systems S series oil water separators additi...

Page 64: ...t n psi com nano purification solutions ltd dukesway team valley trading estate gateshead ne11 opz united kingdom tel 44 0 191 497 7700 www n psi co uk enquiries n psi co uk nano purification solution...

Reviews: