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Installation and Operating Manual Heatless Regenerated Dryer DRYPOINT® XC Economy Series XCe models 80 to 800 with BEKOMINI Controller READ MANUAL FIRST BEFORE INSTALLATION AND OPERATION...
Contents 1. SAFETY AND SYSTEM PRECAUTIONS ............................3 1.1 Definition of the Safety Symbols ............................3 1.2 Operational Warnings ............................... 3 2. INSPECTION AND INSTALLATION ............................... 4 2.1 Incoming Inspection and Transportation .......................... 4 2.2 Design and Use of the Dryer ............................. 4 2.3 Location and Installation ..............................4 2.4 Mounted Filters with Bypass ............................6 3. TECHNICAL SPECIFICATIONS AND GENERAL FUNCTION ......................7 3.1 Technical Data by Model Size ............................
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8. MAINTENANCE AND SERVICE ..............................19 8.1 Routine Maintenance ..............................19 8.2 Maintenance and Service Intervals ..........................20 8.3 Fuses ....................................20 8.4 Desiccant Replacement ..............................21 8.5 Inlet and Exhaust Valve Repair ............................21 9. TROUBLESHOOTING GUIDE ..............................22 10. MAINTENANCE AND SPARE PARTS ............................25 10.1 Required Maintenance Parts ............................25 10.2 Spare Parts ..................................27 11.
SAFETY AND SYSTEM PRECAUTIONS Definition of the Safety Symbols Before attempting any Electrical Hazard: General Warning: Warning: Warning: Warning: service, please read the Possibility of electro- Risk of damage or injury Under pressure High temperature Non-breathable air manual cution Warning: Warning: Warning: Warning: Warning: Operations that can be Do not operate if parts All work to be per- Water cannot be used Machine level noise Personal protec- performed by qualified are missing or have formed by qualified to extinguish fire may exceed 85 dBA tion required operators...
INSPECTION AND INSTALLATION Incoming Inspection and Transportation All dryers are tested and inspected at the factory prior to shipping. Thoroughly inspect and verify the integrity of the packaging upon receipt and note any damage on the freight bill. Place the unit as close as possible to the installation point before unpacking the contents and inspect for concealed damage. Freight claims are to be filed with the carrier immediately and the manufacturer’s technical service department notified thereafter. To move the packaged unit, we suggest the use of a suitable crane or forklift. We do not recommend moving the unit by any hand operated or manual mechanism. Handle with care. Heavy blows could cause irreparable damage. Even when packaged, keep the machine protected from severe weather. The packaging materials are recyclable. Each material must be properly disposed in a manner complying with the rules and regulations of the local municipality government. Design and Use of the Dryer This dryer has been designed, manufactured and tested to be used only to separate the humidity normally contained in compressed air; any other use is considered to be improper. The manufacturer is not responsible for any problems arising from the improper use of this machine. The end user, in any and all cases, is responsible for any resulting damages. Moreover, the correct use of this machine requires the verification of certain installation conditions, in particular: + V oltage and frequency of the electrical power supplied + Pressure, temperature, flow rate and chemical composition of the incoming compressed air + Ambient temperatures The dryer is supplied as tested and fully assembled. The only operation left for the end user is the connection to the plant air and adjustment of the purge rate in compliance with the instructions given in this manual. Factory settings are at nominal conditions at 100 psig and the stated model flow rate (see sect. 3). The purpose of the machine is the separation of water vapor that is present in compressed air. It is not intended to separate oil or other contaminants that are present in compressed air.
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Technicians that service the machine must wear hearing and eye protection while servicing the dryer. Each employee must select a proper personal protection device (PPD) hearing protector such as earmuffs, ear canal caps or earplugs in order to prevent permanent hearing damage or loss. Minimum Installation Requirements: + S elect a clean, dry room that is free of dust and protected from atmospheric disturbances. + The equipment foundation must be smooth, horizontally level, able to bear the weight of the dryer and vibration free + Minimum ambient temperature of +40 °F + Maximum ambient temperature of +120 °F + Allow a clearance of at least 3’ on all sides of the dryer in order to easily facilitate all maintenance needs + The dryer is required to be anchored to the supporting surface + Coalescing pre-filter with drain must be installed + The location of an air receiver tank will vary depending on compressor type and application conditions Incorrect installation may void warranty. NOTE: All piping and electrical connections should be inspected prior to installation to ensure they have maintained their integrity during shipping and locating the dryer.
Optimal Installation Diagram Air Compressor After Cooler CLEARPOINT® Inline Water Separator CLEARPOINT® 5.0 Micron (Grade G) Filtration Receiver Tank CLEARPOINT® 1.0 Micron (Grade F) Filtration DRYPOINT® XCe Desiccant Dryer with CLEARPOINT® Pre and Post-filtration Dry Air Outlet Condensate Drainage Points for BEKOMAT® Optimal installation is with moderately-sized receivers at the inlet and outlet side of the dryer. This allows for the additional free cooling and moisture collection and more consistent dryer inlet flow provided by an upstream receiver, while providing the most reliable shop air supply due to the downstream receiver. Under no circumstances should the peak demand air flow exceed the maximum rated air flow of the dryer. We recommend the dryer be installed with a 0.01 micron CLEARPOINT® coalescing pre-filter at the inlet and a 1 micron CLEARPOINT® particulate post-filter at the outlet. It is recommended to install both 5 micron and 1 micron filters upstream of the dryer in order to maintain the operational lifespan of the inlet filter.
aerosols, dirt, rust, scale and liquid water. If contaminated, the desiccant material will lose its adsorption proprieties. During normal operation, the desiccant will release a small amount of dust (as fine powder) that is particularly abrasive and can be extremely damaging to downstream components and users. For this reason, it is highly recommended that the dryer is equipped with two high-efficiency CLEARPOINT® filters: + 0.01 micron filtration grade coalescing pre-filter with differential pressure gauge and either a float drain or BEKOMAT® + 1.0 micron filtration grade particulate post-filter (differential gauge optional) and with a manual drain. 3.4 Flow Diagram Number Name Number Name Inlet Valve (Normally Open) Solenoid Block Purge Exhaust Valve (Normally Closed) Pilot Air Filter and Regulator Exhaust Silencer Vessel Pressure Gauge Outlet Check Valves Dew Point Sensor (Optional) Pressure Relief Valve Energy Management System %RH Purge Control Valve Pre-filter with Float Drain Optional BEKOMAT Zero Loss Drain Post-filter with Manual Drain DRYPOINT® XC Series Heatless Regenerated Dryers: IOM10003 (Rev.I)
Cycle Operation The cycle time is factory set for operation at 100 psig inlet air pressure and 100 °F inlet air temperature. + 1 0 minutes for -40 °F (-40 °C) IV-A = Inlet Valve, Vessel A IV-B = Inlet Valve, Vessel B PV-A = Purge Valve, Vessel A PV-B = Purge Valve, Vessel B Pressurization Sequence After proper pressurization of the dryer the operator may begin the start-up. During the start-up phase, both purge exhaust valves PVA and PVB (5 and 6) are closed for a period of 70-seconds to help guarantee the complete pressurization of the dryer. Step 1-2 T he purge exhaust valve PV-B (2) is powered open to depressurize vessel for regeneration. Simultaneously the solenoid valve IV-B (1) is powered closed by the pneumatic tower selection. The compressed air flow is directed to vessel A, where the desiccant material adsorbs the humidity down to the target dew point. Through the purge control valve (6), a set amount of dry air discharged from tower A is expanded into vessel B. This dry air, while crossing Vessel B, dries the adsorbent material and the now moisture-laden purge air is discharged through the PV-B valve (2) and exits the silencers (3). At the end of this stage the adsorption material of vessel B is completely regenerated. Step 3 T he purge exhaust valve PV-B (2) is closed and then through the Purge Control Valve (6) vessel B is re- pressurized to the working pressure. The sum of steps 1-2 + 3 equals a half cycle time. Step 4-5 T he purge exhaust valve PV-A (2) is powered open to depressurize vessel for regeneration. Simultaneously the solenoid valve IV-B (1) is powered closed. The compressed air flow is directed to vessel B, where the desiccant material adsorbs the humidity down to the target dew point. Through the purge control valve (6) a defined amount of dry air coming out from tower A is expanded into vessel B. This dry air while crossing vessel A, dries the adsorbent material dragging away the humidity through the PV-A valve (2) and the silencers (3). At the end of this stage the adsorption material of vessel A is completely regenerated. Step 6 T he purge exhaust valve PV-A (8) is closed and then through the Purge Control Valve (6) vessel A is re- pressurized up to the working pressure. The sum of step 4-5 + 6 equals a half cycle time. At the end, the...
4. PURGE VALVE ADJUSTMENT The purge flow control valve must be set to match the inlet pressure of the dryer. The valve must be opened to the corresponding number of turns referenced in the table below. + Always base the pressure adjustment on the lowest operating pressure of the system + The initial setting from factory is for 100 psig operation The procedure for adjusting the purge flow control valve is as follows: Rendered drawing of purge Turn knob clockwise Turn knob counter clockwise flow control valve (to the right) to close (to the left) to open The knob stem of the valve is numbered and a complete turn is considered turning the control knob 360° from number to number. The number of turns expressed in the table below is based on the number of turns from the closed position. 1.
START-UP Verification Prior to Start-up Verify that the operating parameters match with the acceptable ranges indicated on the data plate of the dryer (voltage, frequency, air pressure, air temperature, ambient temperature, etc.). This is not the same as the ASME UW plate on the vessels and may be lower than what is stamped on the ASME UW plate. Before delivery, each dryer is submitted to accurate tests simulating real operating conditions. Nevertheless, the unit could be damaged during transportation. Therefore, we suggest checking the integrity of the dryer upon arrival (see page 4) and observing the dryer during the first hours of operation. The start-up must be performed by qualified personnel only. It is mandatory that the qualified person in charge will verify safe operational conditions complying with the local safety and accident prevention requirements. The same qualified person will be responsible for the proper and safe operation of the dryer. Never operate the dryer if all panels are not properly in place or if any componentry is missing or appears damaged. Service to be performed by qualified personnel only. The end user is responsible to ensure that the dryer will never be operated with pressure that exceeds the maximum pressure rating of the unit. Operating the dryer at a pressure higher than the maximum rating could be dangerous for both the operator and the machine. The inlet air temperature and air flow rate entering the dryer must be within the limits indicated on the data plate. Installation precautions must be taken in order to limit the vibration that can occur during the operation of the dryer. Therefore, we recommend using flexible connecting pipes that are able to insulate the dryer from possible vibrations originating from the pipe line. The connection to the main power is to be carried out by qualified personnel, and the safety protocol must comply with local rules and laws. Before connecting the unit to the electric power, verify that the voltage and the frequency available on the mains correspond to the data on the data plate of the dryer. In terms of voltage, a ±5% tolerance is acceptable. The wire size feeding the dryer must comply with the consumption of the dryer, while keeping into account also the ambient temperature, the conditions of the main power junction box, the length of the wire, and the requirements enforced by the National Electric Code. It is mandatory to ensure the connection to the ground terminal. The condensate is discharged at the same pressure as the air entering the dryer. Never point the condensate drain discharge towards anybody. Connect and properly fasten the condensate drain to a collection system or container. The outlet condensate hose cannot be connected to pressurized systems. DO NOT DISPOSE OF CONDENSATE INTO THE ENVIRONMENT The condensate collected in the dryer contains oil particles released into the air stream by the compressor.
Start-up Procedures During the first start-up or start-up after a long period of inactivity or following maintenance, the technician must comply with the instructions below. The start-up must be performed by qualified personnel only. The employee that operates the machine must wear hearing and eye protection before operating the dryer. Each employee must select a proper personal protection device (PPD) hearing protector such as earmuffs, ear canal caps or earplugs in order to prevent permanent hearing damage or loss. Start-up Sequence + Please read and understand the entire manual before operating the dryer + Verify the factory settings + V erify the wiring diagrams that pertain to your unit and ensure the correct power supply is connected Do not energize the circuit at this time + Verify that proper short circuit protection has been provided following all applicable codes and regulations + Verify that all the steps of in the previous chapters relating to installation have been observed + Verify that the connection to the compressed air system is correct + Verify that the condensate drain pipe is properly fastened and connected to a collection system or container + Remove any packaging and other material that might obstruct the area around the dryer Before starting the dryer your compressor should be running, your compressed air system pressurized and the dryer bypassed and not yet pressurized. 1. With the dryer bypassed and in isolation (see page 14) 2. SLOWLY open the inlet isolation valve allowing compressed air into the dryer. It is critical that the dryer be pressurized slowly to prevent fluidization of the desiccant bed. Keep the outlet isolation valve closed at this time.
General Operation + T he dryer may require up to 48-hours of operation to reach normal operating outlet dew point. Therefore, indicators and alarms do not need to be recognized during this time. Applications where a dew point lower than -40 °F is needed, may require additional time to reach equilibrium. + T he dryer will not perform without properly sized and installed pre-filtration, condensate drainage and correct purge flow adjustment. + A fter the initial start-up some dusting may occur. This is normal and will diminish with time, although may accelerate the first maintenance interval of the exhaust valves, exhaust silencers and post-filter element. + E xhaust valves and silencers may have to be cleaned due to dusting from shipping and the initial start-up, and should be cleaned regularly to ensure proper operation. Post-filter elements should also be part of a regular preventative maintenance schedule. + Never service the dryer or filters without first relieving pressure from the dryer. + A desiccant dryer should never be pressurized or depressurized suddenly. This will cause degradation and dusting of the desiccant bed. + The dryer is designed for a maximum operating pressure of 150 psig as standard. 6. ISOLATION AND SHUT DOWN PROCEDURES Users operating the machine must wear hearing and eye protection. Each employee must select a proper personal protection device (PPD) hearing protector such as earmuffs, ear canal caps or earplugs in order to prevent permanent hearing damage or loss.
CONTROLLER INFORMATION AND OPERATION 7.1 Display Overview The LED illuminated PID controller interfaces between the dryer and the operator (shown above). The following pages the detailed information about the controller’s settings and operation. The controller has a total of nine LEDs to inform the operator its step in operation: + Two check valves indicating the direction of air flow out of the dryer + One purge valve indicator used during regeneration + Two LEDs are used to indicate the active dryer tower during operation + Four LEDs indicate purge exhaust valve and inlet valve PV- and IV- The controller has two additional LEDs used to indicate power and service in the upper left corner of the display as shown by the corresponding icons. During normal operation, the power LED is green and the service indicator LED is off. 7.2 Controller Startup It is important to note that the controller is programed to run five times in succession for a short cycle. That is a 50% shorter run times without consideration of the dew point input to bring the dryer to a defined state. After this startup procedure the device is in normal operation mode. During statup the compressor synchronization input is also active. 7.3 Controller Inputs The controller and housing provide three M12 and two M16 glands on for its input / output connection lines. For input, the connections are: + Power cable + Compressor-synchronization signal DRYPOINT® XC Series Heatless Regenerated Dryers: IOM10003 (Rev.I)
The input “compressor synchronization”, is meant to synchronize the dryer with switching ON and OFF of the compressor. Hence, it prevents a situation where the dryer continues to operate and use rinsing air from the compressed air network though there is no supply of compressed air. In case the voltage (120V AC-Input) drops at the input, the purge exhaust valve is immediately closed. After the compressor signal comes back online, the drying cycle is continued from the same point, meaning that the last open valve also opens again. Note two exceptions: + T his is not valid if the remaining regeneration time is less than 30 seconds, in which case it immediately switches over to the other drying column, which means the other valve is opened. + I f the compressor is switched off for more than 24 hours, then the device is started with five short full Nema cycles as though the operating voltage has been interrupted (i.e. as after RESET). 7.4 Controller Outputs The controller outputs information two ways, one, to the controller display, the other, to the dryer system through the housing glands: + Purge Exhaust Valve A + Purge Exhaust Valve B The controller outputs the dryer’s operational step to the controller display LED indicators. This indicates the activated valves and drying tower. In addition, the power light and service indicator are displayed. The controller outputs an electrical signal to the tower selector solenoid valve and energizes the appropriate valves based on dryer’s step of operation. 7.5 Controller Settings The controller unit has a total of eight DIP switches with the following parameters: + Three DIP switches are used to set the tower regeneration time + Two DIP switches are used to set the pressure build-up time...
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The controller’s eight DIP switches are detailed in the following section. These switches are adjustable but should only be done so by a qualified person. 7.5.1 Regeneration Time (1, 2, 3) The regeneration time is the time selected for steps 1-2 detailed in Section 3.5. The three DIP switches can be adjusted to eight (8) selection times between 2.5 and 6 minutes in increments of 30-seconds as follows: + 000 2.5 minutes + 100 3.0 minutes + 010 3.5 minutes + 110 4.0 minutes (factory setting) + 001 4.5 minutes + 101 5.0 minutes + 011 5.5 minutes + 111 6.0 minutes 7.5.2 Re-Pressure Build-Up Time (4, 5) The re-pressure build-up time is the time selected for step 3 in Section 3.5. The two DIP switches can be adjusted to four (4) regeneration times between 60 and 120 seconds in 20-second increments as follows: + 00...
Service Reset Button Disconnect dryer from power. With the dryer disconnected from the power source press the reset button and hold it and plug the dryer back in to its power source. After that the timer is reset to 8000 hrs. After 360-days of the service indicator LED will flash amber indicating that service is due, and after 400- days the LED will flash red indicating that service is overdue. Power Requirements The controller operates on 100-120VAC / 50-60Hz. The units are shipped with an installed standard US 120 volt cord for convenience. Before starting up the machine it is necessary to have a qualified electrician review the electrical requirements schematic and install to the National Electric Code. Please refer to Section 12. The optional BEKOMAT® on the pre-filter at the dryer inlet is supplied according to the power voltage indicated in the order;...
8. MAINTENANCE AND SERVICE Routine Maintenance The service must be carried out only by a qualified technician. Before any service is carried out, always verify that: + The power has been disconnected following proper Lock-out, Tag-out procedures + Depressurize the unit and ensure the unit is isolated from the compressed air system (see sect. 6) DAILY + Check that pre-filter condensate drain is working properly + Check the differential pressure of any installed pre and post filtration...
8.2 Maintenance and Service Intervals Preventative maintenance of the pre- and post-filter element, and desiccant material is required. The controller monitors the dryers operating hours and will activate the maintenance alarms after the following intervals: + 360 Days: Amber Service Light + 400 Days: Red Service Light The dryer system should be check for items that require standard replacement and maintenance such as: the filter elements, exhaust silencers, and desiccant material. NOTE: The maintenance alarms (reminders) do not change the operation of the controller in any way. 8.3 Fuses One safety fuse is fitted on the electronic board, in positions F1. The fuse protects all circuits the electronic board of the BEKOMINI controller. The replacement fuse type is: + T1A type Radial lead fuse, PCB style The fuse can break if there are any problems with the dryer. In which case, only a certified technician can replace the fuse, but only after solving the problem that caused the malfunction first.
Desiccant Replacement CAUTION: Activated alumina desiccant dust is considered a nuisance dust. Proper precautions should be taken prior to replacing the desiccant material in the dryer. Please refer to the Safety Data Sheet (SDS). 1. Isolate and shut down the dryer. 2. P lace a suitable container at the edge of each drain port on the bottom of the towers that are located on the sides, facing outward. 3. O pen the drain ports on the bottom of the towers and catch the desiccant in the containers. 4. R efill each tower with the recommended type, size and quantity of desiccant. Only use manufacturer supplied desiccant, which is high quality, high capacity desiccant designed and sized for the dryers. 5. C arefully knock on the sides of the tower chambers while filling so that the desiccant will pack tightly. Some settling may be required in order to fit the specified fill amount into the tower. Tank sizes may be the same for multiple models, so do not be concerned if the tower is not entirely full. 6. D esiccant that has been contaminated with oil or other substances may require different disposal methods and procedures than desiccant that is being replaced due to aging. Consult the appropriate MSDS and follow all applicable laws and regulations regarding disposal. Inlet and Exhaust Valve Repair 1. Isolate and shut down the dryer. 2. Make certain that there are no “pockets” of pressure contained by the various valves. 3.
TROUBLESHOOTING GUIDE The troubleshooting and the eventual checks must be performed by qualified personnel only. The technician that services the machine must wear hearing and eye protection while servicing the dryer. Each employee must select a proper personal protection device (PPD) hearing protector such as earmuffs, ear canal caps or earplugs in order to prevent permanent hearing damage or loss. SYSTEM TROUBLE POSSIBLE CAUSE SUGGESTED ACTION T he service LED Service Reminder I f the service LED indicator light is flashing amber this is an indication that the dryer is approaching the annual on maintenance interval, and schedule maintenance should be the controller is performed within the next 5-days. – 360 hours flashing amber Service Due I f the service LED indicator light is flashing red then the dryer or red. is overdue for scheduled maintenance by approximately one month, and should be serviced immediately to ensure trouble free operation. – 400 hours Dryer stopped ...
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SYSTEM TROUBLE POSSIBLE CAUSE SUGGESTED ACTION H igh Dewpoint Purge Valve Adjust and ensure correct setting (as checked by Exhaust Silencers Backpressure due to clog, install new mufflers external sensor) Desiccant Media is fouled, replace new Purge Exhaust Valve See Purge Exhaust Valve troubleshooting Low Pressure Increase to rated pressure High Flow ensure air inlet flow does not exceed dryer capacity High Temperature ensure air inlet temperature does not exceed dryer capacity ...
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COMPONENT POSSIBLE CAUSE SUGGESTED ACTION TROUBLE Drain Contaminated Clean drain and plumbing Drain Install service drain kit or replace entire unit Pre-Filter Application Failure with upstream bulk water separator Dirty element Contaminated filter, replace element Electrical Faulty electrical signal D ifferential pressure Clean, check and or replace gauge Post-Filter Dryer dusting ...
MAINTENANCE AND SPARE PARTS We strongly recommend stocking the suggested spare parts to help enable you to promptly carry out any required maintenance and/or replace any parts that may fail without having to wait for the parts to be delivered. If you need to replace any other parts, please contact your local distributor or BEKO Technologies, Corp. Technical Service Department at +1 (800) 235-6797 for assistance. 10.1 Required Maintenance Parts Interval DESCRIPTION Order No. 080 100 120 160 200 250 300 400 500 650 800 Pre-filter Element 0.01 μm 07SX 4038113 10SX 4038149 12SX 4038114 ...
DISMANTLING OF THE DRYER If the dryer is to be dismantled and disposed of then it must be split into groups of materials of construction. Part Material Desiccant material Activated alumina, Oil contaminated Frame and supports Carbon steel, Powder coated Piping Galvanized steel, Galvanized malleable iron, Brass, Aluminum Towers and screens Carbon steel, Stainless steel Valves Brass, Stainless steel, Bronze, Plastic Filter housing Aluminum, Epoxy paint Filter cartridge Filtering material, PVC, Oil Solenoid valve Bronze, Steel, Techno-polymer, PVC Condensate Drain PVC, Aluminum, Steel, Bronze Silencers Aluminum, Stainless steel Safety Valves Brass, Bronze Gaskets and O-Ring Graphite, Synthetic elastomer Electric cables Copper, PVC Electric Parts PVC, Copper, Bronze, Silicon We recommend complying with the safety rules and regulations for the disposal of each type of material. The adsorption material and the filter cartridge will contain droplets of lubrication oil. Do not dispose of these materials in the environment. All local Governmental laws and regulations must be followed in disposing of the above listed materials. DRYPOINT® XC Series Heatless Regenerated Dryers: IOM10003 (Rev.I)
12. ELECTRICAL WIRING DIAGRAM GENERAL DESCRIPTION OF PARTS + Desiccant – An adsorbent used for drying air or gases. The proper quantity, size and type are necessary. + Inlet Valve – Normally open air operated switching valves used to direct air flow through the towers. + Exhaust Valve – Normally closed air operated switching valves used to exhaust purge air, hold air in the on-line tower and exhaust air from the tower ready to be regenerated. + Outlet and Check Valves – Valves that allow full flow in one direction and no flow in the opposite direction. These valves are used in conjunction with the inlet and exhaust valves to control the desired flow of process air through the dryer. + Safety Relief Valves – Valves on each tower to protect the vessels from overpressure situations. The setting is indicated on each valve. + Purge Exhaust Silencer – Installed to reduce exhaust noise during purge and blow down for the protection all personnel and to comply with OSHA standards. Silencers are non-mechanical, but must be maintained. + Purge Flow Control Valve – Valve that allows the adjustment and regulation of purge air flow used for the regeneration process. + BEKOMIN Controller – Electronic controller that provides an interface between the operator and dryer, provides dryer cycle status, operates the electric solenoid valves, provides indicator lights and alarm controls. All hard wired connections, including the power connections during installation are made to this device.