Summary of Contents for Beko DRYPOINT RAX 125 NA-E-OB Series
Page 1
EN - english Instructions for installation and operation Compressed air refrigeration dryer DRYPOINT ® RAX 20-500 NA 1ph UL...
Page 2
Dear customer, ® Thank you for deciding in favour of the DRYPOINT RAX 20-500 NA UL compressed-air refrigeration dryer. Please read ® these installation and operating instructions carefully before mounting and starting up the DRYPOINT RAX 20-500 NA ® UL and follow our directions. Perfect functioning of the DRYPOINT RAX 20-500 NA UL and thus reliable compressed- air drying can only be guaranteed when the provisions and notes stipulated here are strictly adhered to.
Contents Name plate Safety instructions Safety pictograms in accordance with DIN 4844 Signal words in accordance with ANSI Overview of the safety instructions Proper use Exclusion from a field of application Operating instructions in accordance with the 97/23/EC Pressure Equipment Directive Transport Storage Installation...
Page 4
Electric diagram DRYPOINT RAX 125-250 NA 13.3.4 Electric diagram DRYPOINT RAX 300-350 NA 13.3.5 Electric diagram DRYPOINT RAX 400-500 NA Pos : 1 /Beko Tec hnisc he Dokumentati on/Ü bersc hriften/1/Sic herheits hinweise @ 0\mod_1183637609261_6.doc @ 5365 DRYPOINT® RAX 20-500 NA 1ph UL...
Safety instructions Pos : 2 /Beko Tec hnisc he Dokumentati on/Gl obal e T exte/Allgemei ner Hi nweis BM @ 0\mod_1183615737313_6.doc @ 4004 Pos : 3 /Beko Tec hnisc he Dokumentati on/Sic herheit/Hi nweis Anlei tung BEKO @ 0\mod_1184147787557_6.doc @ 5758 Please check whether or not these instructions correspond to the device type.
Do not operate with open cover (housing) Maintenance works or controlling measures must only be carried out by qualified personnel Do not smoke Note Pos: 4 /Beko Technische Dokumentation/Sicherheit/Gefahr Druckluft @ 0\mod_1184148143854_6.doc @ 577 ARIA Connection point compressed-air inlet LUFT...
Page 7
Safety instructions NOTE: Text that contains important specifications to be considered – does not refer to safety precautions. The device was carefully designed with particular attention paid to environmental protection: • CFC-free refrigerants • CFC-free insulation material • Energy-saving design •...
"Installation" chapter leads to the expiration of the guarantee. Improper installation may result in dangerous situations for the personnel and/or the device. Pos: 5 /Beko Technische Dokumentation/Sicherheit/Maßnahmen Druckluft BM @ 0\mod_1184148284291_6.doc @ 5812 Pos: 6 /Beko Technische Dokumentation/Sicherheit/Gefahr Netzspannung @ 0\mod_1184148186948_6.doc @ 5794...
Page 9
Safety instructions ® The DRYPOINT RAX 20-500 NA UL compressed-air refrigeration dryer contains fluorinated greenhouse gas/refrigerant. Installation, repair and maintenance works at the refrigeration system must only be carried out by certified skilled personnel (specialists). A certification in accordance with EC regulation 303/2008 must be available.
Page 10
Pos : 12 /Beko T ec hnis che D okumentati on/Übersc hriften/1/Besti mmungsgemäße Ver wendung @ 0 \mod_1183637706293_6.doc @ 5383 DRYPOINT® RAX 20-500 NA 1ph UL...
Pos : 15 /Beko T ec hnis che D okumentati on/Übesc hriften/1/Aussc hluss vom Anwendungs bereic h @ 0 \mod_1236003439359_6.doc @ 13709 Exclusion from a field of application Pos : 16 /Beko T ec hnis che D okumentati on/Besti mmungsgemäß e Ver wendung/BEKOM AT/Aus schl uß Anwendung BM 31/32/33 @ 0\mod_1236003837511_6.doc @ 13736 Note! Improper use! The device is intended for the separation of water in compressed air.
Operating instructions in accordance with the 97/23/EC Pressure Equipment Directive Operating instructions in accordance with the 97/23/EC Pressure Equipment Directive The DRYPOINT® RAX 20-500 NA UL compressed-air refrigeration dryer contains pressure equipment in the sense of the 97/23/EC Pressure Equipment Directive. Therefore, the entire plant needs to be registered with the supervisory authority if required in accordance with the local regulations.
Installation Installation Place of installation Note! Ambient conditions! In the event that the dryer is not installed under suitable ambient conditions, the ability of the device to condense refrigerant gas is impaired. This can result in a higher load of the refrigerating compressor, and in a loss of efficiency and performance of the dryer.
Installation Installation plan - A - Air compressor Aftercooler Condensate separator Prefilter Bypass group Dryer Compressed-air tank - B - Final filter Bekomat condensate drain Installation type A is recommended when the total consumption corresponds to the throughput rate of the compressor. Installation type B is recommended when the air consumption constantly varies, with peak values which considerably exceed the throughput rate of the compressor.
Installation Connection to the compressed-air system Danger! Compressed air! All works must only be carried out by qualified skilled personnel. Never work on compressed-air systems which are under pressure. The operator or the user must ensure that the dryer is never operated with a pressure exceeding the maximum pressure value indicated on the name plate.
Installation Electrical connections Danger! Supply voltage! The connection to the electric mains should only be carried out by qualified skilled personnel and must correspond to the legal provisions in force in your region. Prior to connecting the device, please check the name plate to avoid exceeding the indicated values. The voltage tolerance is +/- 10%.
Start-up 10 Start-up 10.1 Preliminary stages Note! Exceeding of the operating parameters! Ensure that the operating parameters comply with the nominal values indicated on the name plate of the dryer (voltage, frequency, air pressure, air temperature, ambient temperature etc.). Prior to delivery, this dryer was thoroughly tested, packed and checked. Please verify the soundness of the dryer during the initial start-up and check the perfect functioning during the first operating hours.
10.3 Shut down and restart Shut down (see Section 11.1 "Control panel") • Ensure that the dew point temperature indicated on the DMC 18 electronic control unit is stable. • Interrupt the compressed-air supply. • After a few minutes, stop the dryer by switching off the main switch on the control panel (pos. 1). Restart (see Section 11.1 "Control panel") •...
Technical description 13 Technical description 13.1 Control panel The control panel explained below is the only dryer user interface. RAX 20 – 100 NA UL RAX 125 – 500 NA UL Main switch Electronic control unit DMC 18 Air and refrigerant gas flow chart 13.2 Functional description Operating principle –...
Technical description 13.4 Refrigerating compressor The employed refrigerating compressors are constructed by leading manufacturers. The hermetically sealed construction is absolutely gastight. The integrated safeguard protects the compressor against overheating and excess current. The protection is automatically reset as soon as the nominal conditions are reached again. 13.5 Condenser The condenser is the component in which the gas coming from the compressor is cooled down, condensed and liquefied.
Technical description 13.10 Refrigerant pressure switches LPS – HPS – PV To ensure the operational reliability and the protection of the dryer, a series of pressure switches are installed in the gas cycle. LPS : Low-pressure guard on the suction side of the compressor, which is triggered when the pressure drops below the predetermined value.
Technical description 13.12 DMC 18 electronics (control unit compressed-air dryer) Led - temperature in °C Led - temperature in °F Led – drain ON Led – alarm/service Button – access configuration menu Button – decrease / service Button – increase / drain test DISPLAY The DMC18 controls the alarms and the settings of the dryer operation and of the BEKOMAT drain.
Technical description 13.12.5 Operation of the potential-free failure/alarm contact The DMC 18 is equipped with a potential-free contact to indicate failures or alarm conditions. Dryer is switched on and no service warning/alarm is active. Dryer is off or a service warning/alarm is active. 13.12.6 How to change operating parameters –...
Maintenance, troubleshooting, spare parts and dismantling 13.13 Electronically level-controlled BEKOMAT condensate drain The electronically level-controlled BEKOMAT condensate drain boasts a special condensate management which ensures that condensate is discharged safely and without an unnecessary loss of compressed air. This drain has a condensate collection container in which a capacitive sensor continuously monitors the liquid level.
Page 29
Maintenance, troubleshooting, spare parts and dismantling Prior to carrying out maintenance works at the dryer, switch it off and wait for at least 30 minutes. Caution! Hot surfaces! During operation, several components can reach surface temperatures of more than 140°F (60°C).
Maintenance, troubleshooting, spare parts and dismantling 14.3 Troubleshooting Certified skilled personnel Installation works must exclusively be carried out by authorised and qualified skilled personnel. Prior to undertaking any measures on the DRYPOINT® RAX 20-500 NA compressed-air refrigeration dryer, the certified skilled personnel shall read up on the device by carefully studying the operating instructions. The operator is responsible for the adherence to these provisions.
Page 31
The dryer does not discharge the condensate – see the corresponding point. The hot-gas bypass valve needs to be re-adjusted – contact a BEKO service technician to have the nominal setting re-established. There is a leak in the refrigeration cycle – contact a BEKO service technician.
Page 32
The HPS pressure switch is defective – contact a BEKO service technician for the replacement. ◆ If installed: There is a leak in the refrigeration cycle – please contact a BEKO service technician. the LPS low-pressure The pressure switch is automatically reset as soon as the normal conditions are re- switch was triggered.
Page 33
The dryer does not discharge the condensate – see the corresponding point. The hot-gas bypass valve needs to be re-adjusted – contact a BEKO service technician to have the nominal setting re-established. There is a leak in the refrigeration cycle – contact a BEKO service technician.
Page 34
The HPS pressure switch is defective – contact a BEKO service technician for the replacement. ◆ If installed: There is a leak in the refrigeration cycle – please contact a BEKO service technician. the LPS low-pressure The pressure switch is automatically reset as soon as the normal conditions are re- switch was triggered.
Maintenance, troubleshooting, spare parts and dismantling 14.4 Recommended spare parts Spare parts list is printed on a dedicated sticker applied inside the dryer. On this sticker each spare part is identified with its ID Number and related Spare Part Number. Here below the cross-reference table between ID Numbers and exploded drawings Ref.
When delivered, the dryer is ready to operate and filled with a refrigerant of the R134a or R407C type. Should you detect a refrigerant leak, please contact a BEKO service technician. Prior to any intervention, the room needs to be ventilated.
Appendices 16.2 Exploded diagrams 16.2.1 Components of the exploded diagrams Alu drying module Air dryer control 1.1 Insulation material Bekomat drain Refrigerant pressure switch LPS Main switch Safety temperature switch TS … Refrigerant pressure switch HPS Front panel Refrigerant fan pressure switch PV Back plate Compressor Right sidewall...