SAHARA SERIES DryLine® DEHYDRATOR USER MANUAL
Contents
1. on ONO LL 1 N HH ks a Place alarm connection wires in proper terminals and tighten the screw on the terminal block See section 4 The relay contacts are rated at 2 non inductive 30 Vdc 2 6 Connecting Dehydrator to the Transmission Line CAUTION Check the antenna and transmission line ystem pressure rating before connecting he dehydrator to the system Insert one end of the 3 8 poly tube feed line tubing into the fitting on the dehydrator output port Connect the other end of the poly tube to the transmission line Connect the Remote Sense Line Tubing Insert a single tubing run from the transmission line into the fitting on the rear of the unit marked Remote Sense Install the isolation shutoff valves The valves when used on output lines allow the system to retain pressure while the system is removed for servicing Place each valve in line between each output and transmission line Install the Output line and the Remote Sense line in separate ports on the gas inlet Ifa second port is not available install a tee in the gas inlet at the transmission line and connect both the outlet and Remote Sense to the tee However this type of connection could cause excessive back pressure in the dehydrator causing it to short cycle SAHARA SERIES DryLine DEHYDRATOR USER MANUAL CAUTION Do not operate the unit with the Remote Sense l2. 2 4 2 Testthe Dehydrator 2 5 Connecting the Alarm Outputs 24 1 AC Power 2 6 Connecting Dehydrator to the Transmission Line 3 Figure 4 SAHARA Series System configuration diagram Basic 2 6 2 SAHARA Series System configuration diagram Multi Line Tm Figure 5 SAHARA Series System gau diagram Multi Line DEEST 2 6 3 Pressure Monitoring and Control unus uU 2 6 4 Dehydrator Duty Cycles 2 7 Purging the Transmission Line bd dod dodo ay 2 6 1 SAHARA Series System configuration diagram Basic TEILT 2 8 PC Interface to B Version Dehydrator Control 10 Section 3 Maintenance 12 3 0 Maintenance suu wes wha S UR wed awe tan cee end 3 1 Preventive Maintenance 3 2 Dehydrator Filter Element Replacement popa wept aes ame iZ 3 2 1 Replace the coalescing 5 12 3 3 Annual Inspection ER P 3 3 1 Check the electrical 13 3 3 2 Checkthe ground wire sas sra sea are sas daa waw was 3 3 3 3 Check the hour meter Een 3 4 Parts Replacement and Dehydrator Overhaul ith Abie due d Ghar eee dd 3 4 1 In Case Of Difficulty see llle 3 3 4 2 Tools a n
3. is doloe 5 3 4 3 Overhaul Procedure LLL 3 4 4 Unit Shutdown and Removal ju ern P 3 4 5 Unplug the unit from the power supply ign a aa 3 5 Service Restoration RECOMMENDATION Ses eth ad aay aca Section 4 Troubleshooting 15 Figure 6 Electrical Diagram SAHARA2 and SAHARA2A 17 Figure 7 Pneumatic 18 O O O O o0 N N N N N N N OO n Q P F A SAHARA SERIES DryLine DEHYDRATOR USER MANUAL A Section 5 Replacement 19 Overhaul Kit SAHARA KIT OVRHL sss sse cee ss sse sse sss sss 19 Filter Element Replacement Kit SAHARA KIT ELMNT 19 Filter Bowl Assemble Replacement Kit SAHARA KIT FLTRS 19 Dryer Tube Replacement Kit 5 1 19 Solenoid Replacement Kit SAHARA KIT SOLND 19 Section 6 Customer 19 6 0 han ed Nae Gee a EE ee dg 6 1 In Case of Trouble 19 6 2 Initial Steps by CommScope 20 6 3 Repair Center 5 20 6 4 ROMS INQUINIES Uu e E a
4. Section 3 Maintenance 3 0 Maintenance The SAHARA Series Dehydrator requires relatively little maintenance to ensure satisfactory operation over long periods of time This section outlines the recommended annual preventive maintenance for the unit and the suggested overhaul for every 6000 hours of compressor operation 3 1 Preventive Maintenance The annual maintenance of a SAHARA Series consists of a preventative maintenance inspection of the dehydrator and replacement of the felt air intake filter if necessary These tasks can easily be performed in the field with the unit connected to the transmission line system and with only the front and top corner opened for maintenance In addition to the annual inspection a complete overhaul is recommended every 6000 hours or sooner if local conditions warrant HTO 1 EFIE Mo g Pi 3 2 Dehydrator Filter Element Replacement 3 2 1 Replace the coalescing filters Remove front cover turn filter bowl housing CCW to remove coalescing filters element No need to remove any hoses From the front of the dehydrator the left coalescing filter is 5 0 micron and the right coalescing filter is 0 01microns The coalescing elements should be replaced every 6000 hours of operation To replace filter coalescing elements due things in reverse orders 12 CAUTION Do not apply oil or other chemicals to the ilter element Make sure the element i
5. The first step you should take if trouble develops using a dehydrator is to read the operators manual and follow the trouble isolating procedures given in it If the steps in the manual do not identify and remedy the problem then contact an CommScope Customer Service Center for 24 hour telephone assistance Filter Bowl Assemble Replacement Kit SAHARA KIT FLTRS BAH WIE LIA ANDREW C SAHARAZA Model Number DrjLine 24 Vac 50 609 3 9A 2 BPS DIS LT A Dryer Tube Replacement Kit SAHARA KIT DRYER Si a gt e 2 Record the Model Number e g SAHARA and a i Serial Number from the product label as you will be asked for these when you call Two main locations are currently available to help Solenoid Replacement Kit SAHARA KIT SOLND From North America Telephone 1 800 255 1479 Fax U S A 1 800 349 5444 SAHARA SERIES DryLine DEHYDRATOR USER MANUAL 6 2 6 3 International Telephone 1 779 435 6500 Fax Number 1 779 435 8579 Web Access Internet www commscope com email prc commscope com Initial Steps by CommScope When your call or fax communication is received the CommScope staff will work with you to pinpoint the possible cause of trouble If the pressurization equipment is suspect they will ask for your unit Model Number and Serial Number check the warranty status of the unit advise the availability of a loaner unit provide an estimate of the co
6. Connector 3 8 polytube compression Low Pressure Alarm kPa psig 6 9 1 0 SAHARA SERIES DryLine DEHYDRATOR USER MANUAL Section 2 Installation 2 1 2 2 Unpacking and Inspection Open carton Remove the top piece of foam packaging Carefully remove the installation accessories and manual and dehydrator Check the dehydrator for shipping damage such as dents or loose parts Controls and Displays Default password is 1111 Familiarize yourself with the controls and displays prior to installing or testing the dehydrator Keypad Controls Advances display scrolls ahead to the next display or program mode with out changing the values in the microprocessor memory Enters into the microprocessor memory the values displayed in the window and advances display scrolls ahead to the next program or display mode Numerically increase displayed settings in display window When depressed longer than 1 2 second scrolling will occur at a faster rate Numerically decrease displayed settings in display window When depressed longer than 1 2 second scrolling will occur at a faster rate Used to allow the user quick access to the system event log Event Log Codes 0 Event Power Up Event High Humidity Alarm 2 Event Excessive Run Time Alarm 3 Event Low Pressure Alarm 4 Event High Pressure Alarm 5 Event Compressor Fault 6 Event Log Cleared 7 Event Powering Down 8
7. he ob aa 24220 SAHARA SERIES DryLine DEHYDRATOR USER MANUAL Section 1 General Information 1 1 1 2 Introduction This manual contains the information you need to install operate and maintain your SAHARA Series DryLine Dehydrator Please take the time to read this manual before attempting to operate or service the unit CAUTION This appliance is not intended for access by the general public This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Description SAHARA Series dehydrators provide dry air for pressurizing large 2830 to 31 150 liters 100 and 1100 ft3 antenna and transmission line systems The dehydrators produce 45 C 50 F dew point dry air at a nominal volumetric flow rate of 56 3 SLPM 2 0 SCFM Each dehydrator consists of an electrically driven air compressor a membrane dryer assembly an automatic transmission line pressure sensing system and alarm outputs housed in a rigid metal chassis It is designed as a free standing unit The front panel features a control interface with display for alarms and pressure For easy serviceability power connections alarm output connections and all filter elements are accessible f
8. installed to the halo grounding system Check the hour meter Check the hour meter on the display to determine the duty cycle of the dehydrator If the dehydrator has been running for more than 10 of its installed time check the systems for leaks Also check the time on the meter to determine if it is time to perform the 6000 hour overhaul 13 3 4 3 4 1 3 4 2 3 4 3 Parts Replacement and Dehydrator Overhaul CommsScope SAHARA Series DryLine Dehydrator are designed to give many years of trouble free service and require very minimal maintenance The dehydrator contains as a standard feature an hour meter that records compressor run hours To ensure continuous and reliable operation the dehydrator must be overhauled every 6000 hours of compressor operation The kits shown in Section 5 contain all of the necessary parts to perform this overhaul The dehydrator overhaul kit includes parts to overhaul the compressor and critical components in the dehydrator that often become worn over time In Case Of Difficulty If the dehydrator is not operating refer to Section 2 on Installation and Section 4 on troubleshooting the unit Tools The following tools are used in the maintenance and overhaul procedures Adjustable open end wrench 2 Phillips screwdrivers Small flat blade screw driver Overhaul Procedure When the SAHARA compressor run time reaches 6000 hours or a multiple of 6000 hours it
9. is time to replace certain items in the compressor and the air path of the dehydrator These include the piston cups piston seals and head gaskets of the compressor the filter elements in the water and coalescing filters and the tube section connecting the compressor output to the heat exchanger In addition if the unit gives the dryer pressure alarm the compressor may be in need of an overhaul This does not always coincide with the 6000 hour time frame If the dryer pressure alarm is triggered check the system for leaks If no leaks are detected the compressor will need to be overhauled SAHARA SERIES DryLine DEHYDRATOR USER MANUAL 3 4 4 Unit Shutdown and Removal room to purge the membrane dryer of any acquired moisture before reconnecting to the In order to perform an overhaul on the SAHARA transmission line system Series the unit must be turned off and removed from service As this is being done the low pressure alarm may activate through a reporting alarm system Personnel monitoring such an alarm should be notified in advance so that they are aware of the fact that service is being performed It is also necessary to disconnect the dehydrator dry air output from the waveguide system during the overhaul If isolation valves have been installed between dehydrator remote pressure sense line and transmission line close valve before removing unit service to prevent pressure loss 3 4 5 Unplug the unit from t
10. lt 0 E S D a 0 Figure 6 BS7 WHITE FILTER SPARK FILTER SOLENOID 1 SOLENOID WHITE 88 2 FAN 17 SAHARA SERIES DryLine DEHYDRATOR USER MANUAL AMVINI YIONVHIX3 oneuneug 31N l4 1ndino 3SN3S 3ATVA 330 dOd JUNSSIYA yk yova YOSSIYAMNOD Mari NO3OIIN L0 O a a RA Mari NOUDIN 0 S V 3 m IlOHLINOO X18W3SSV H3AMNG GION31OS pex INIT YOSNIS 3YNSSIYA IH eniq aNr1 40SN3S 38NSSIYA 18 SAHARA SERIES DryLine DEHYDRATOR USER MANUAL Section 5 Section 6 Replacement Parts Customer Service The following is a list of the replacement kits for the 6 0 Introduction SAHARA Series dehydrators CommScope provides in warranty and out E of warranty repairs as well as dehydrator and 18 compressor overhauls from several Repair Centers Coordination of these services is provided through the nearest Sales Office or Customer Service Center The Center is also ji prepared to help you with the following TE N Technical Assistance Overhaul Kit SAHARA KIT OVRHL Troubleshooting Spare Parts Installation Materials Repairs Loaner Units System Accessories Filter Element Replacement Kit SAHARA KIT ELMNT 6 1 Case of Trouble
11. 2 6 4 Dehydrator Duty Cycles The dehydrator is programmed at the factory to start when the output pressure of the dehydrator drops to 13 8 kPa 2 psig and stops when the pressure reaches 34 5 kPa 5 psig Some system components however have lower pressure ratings If this is the case please contact CommScope Customer service Note If the transmission lines have not been purged continue with section 2 7 Otherwise proceed to section 3 2 7 Purging the Transmission Line Air in the transmission line system must be replaced with dry air to ensure satisfactory operation of the transmitted signal 1 Determine the total system volume 2 Divide the system volume by the flow rate of the dehydrator 3398 SLPH 120 SCFH to determine the number of hours needed for one purge cycle 2 8 SAHARA SERIES DryLine DEHYDRATOR USER MANUAL 3 Open the far end of the transmission line 4 Operate the dehydrator for no less than three purge cycles If it is not possible to open the far end of the transmission line follow these steps 1 Connect the dehydrator to the transmission line and pressurize the system The system pressure should reach 34 kPa 5 0 psig 2 Wait 15 minutes while the air absorbs moisture in the system then disconnect the dehydrator from the transmission line and allow the air to vent 3 Repeat steps 1 and 2 twelve times to purge the system PC Interface to B Version Dehydrator Control Board 1
12. COMMSC PE Andrew Solutions SAHARA SERIES DryLine DEHYDRATOR USER MANUAL Bulletin 1 0587 001 Rev C 2011 2012 CommScope Inc All rights reserved 1 12 SAHARAZA PINTA ALA Tas WBE 8 Pb SAHARA SERIES DryLine DEHYDRATOR USER MANUAL Tabel of Contents Section 1 General Information 2 20 eee ese sss ee sss ee ee 1 1 INTOQUCUON 25 5 bas 86 456 856 s s SEE NER Son 2 2 sss sss esas ee 3 Theory of operation 2 2 24 uua acia ada RE RA a ae 4 Alarms Figure 1 Discrete Alarm Terminal Strip with Summary Alam Figure 2 Summary Alarm Terminal Strip sun e ua Figure Pin and Jumpers 1 5 Specifications SAHARA Series Section 2 Installation 2 2 2 ee sas ee 21 Unpacking and Inspection 2 00 lille ll lll lee ee 2 2 Controls and Displays asa en 224 Event Log Codes srs dea BYE s 2 3 Installing the 2 3 1 Setonbenchorthe floor llis ooo re 2 4 Power Connections o sss e ses oo hh
13. Event Compressor Lifetime Eeprom Fail Installing the Dehydrator Set on bench or the floor Power Connections Confirm your dehydrator electrical input matches the available power SAHARA SERIES DryLine DEHYDRATOR USER MANUAL Ensure an electrical safety ground is installed on the ground stud located adjacent to the power input connector It is intended to be customer installed in the field to your halo grounding system SAHARA2 amp SAHARA2A 220 Vac 10 60 Hz 240 Vac 10 50 Hz 2 41 AC Power AC units should be connected into a standard 30 amp power receptacle of the proper voltage Make sure the power circuit is properly grounded Ground Stud CAUTION Proper electrical connection is required It is suggested a licensed electrician be contracted to connect the AC wiring to the unit if it is connected directly to the mains Failure to properly connect the power wires could result in a dangerous electrical shock hazard CAUTION This unit is designed for connection to a single phase power source Connection to a 3 phase power source will cause significant damage to internal components 2 42 Test the Dehydrator Turn the dehydrator ON and check the output port on the rear of the unit after five seconds of operation to make sure air is flowing 2 5 Connecting the Alarm Outputs To connect the alarms locate the terminal block TB 1 on the rear of the unit 1 Summary 1 mu Discrete
14. Turn off dehydrator remove top cover connect a USB 2 0 and mini USB cord between the computer and the dehydrator control board The mini USB connector is found on the upper left corner of the controller board and is marked USB See image below 2 Once the unit is powered up and connected to the computer a Found New Hardware Wizard may open Select No not this time and click Cancel 3 Goto the Start menu gt select Programs gt Accessories gt Communications gt HyperTerminal 4 The HyperTerminal will ask for a Connection Description Name This is not relevant for this device so type anything into this field it will not be useful once the board is disconnected from the computer A new connection will need to be established every 10 new time that the unit is connected Choose the virtual com port from the drop down list It should be Com3 or Com4 for the first time that you load firmware click Next In the Port Settings screen change the Bits per Second setting to 19200 and change the Flow Control setting to None Turn Caps Lock on Type ID into the blank field and hit enter The program should respond with a list of data including serial number hardware and firmware version etc If it does not respond with this your connection 10 11 did not work The virtual com port selection is generally the issue here Start a new connection and try again Once succes
15. he power supply Follow the instructions included in the compressor overhaul kit When the overhaul is complete reinstall Complete overhaul can be done without removing the compressor from the chassis The compressor head air filter output port and relief valve can all be removed though top panel When the overhaul is complete reinstall 3 5 Service Restoration RECOMMENDATION If the dehydrator overhaul process has taken more than a few hours it is recommended that the unit be run for one hour into the 14 SAHARA SERIES DryLine DEHYDRATOR USER MANUAL Section 4 Troubleshooting If you experience difficulty with your dehydrator use the troubleshooting procedures described below Caution Electrical troubleshooting requires access to potentially dangerous voltages and should only be performed by a licensed electrician Problem Condition Pp Solution If the display light falls to light make sure the unit is plugged in and power outlet is operating If you still have no light unplug the unit remove the unit Dehydrator display does not light unit does not run cover and check for loose connections Refer to the wiring diagram for proper connections Check to ensure that proper AC voltage is being supplied to the input See figure 6 Turn shut off valve to the off position and observe pressure gauge The pressure gauge line should read approximately 34 kPa 5 0 psig and the alarm should clear If alarm does not c
16. ine disconnected this may result in an over pressure condition Also be sure that any isolation valves are open before operating the unit 2 6 1 SAHARA Series System configuration diagram Basic This configuration shows proper hook up for systems when only a single waveguide is required in the system Remote Pressure Sense Line Isolation Shut off Valves Dehydrator Output Line Primary Large Wave Guide SAHARA Dehydrator Figure 4 SAHARA Series System configuration diagram Basic 2 6 2 SAHARA Series System configuration diagram Multi Line This configuration shows proper hook up for systems when more than a single wave waveguide is required in the system For larger systems a 6 output manifold can be added This diagram can also be used for hooking a DP 4A 001 or 6600D Series or LM400 Series Manifold to the system Remote Pressure Sense Line Isolation Shut off Valves Dehydrator Output Line Primary Large Wave Guide SAHARA Dehydrator Any other Monitor or Manifold can be used in this location to expand the system DP 4A 001 or 6600D or L6600D or LM400 Series Manifold Outputs to other Wave Guides Figure 5 SAHARA Series System configuration diagram Multi Line 2 6 3 Pressure Monitoring and Control Pressure Monitoring Points Dehydrator output pressure is monitored at the transmission line on all models by the Remote Sense port on the rear of the unit
17. lear remove cover and verify tubing and wiring connections are secure See figure 6 Low pressure alarm activated With dehydrator isolated from transmission line observe pressure in transmission line If pressure drops use a leak detector solution to locate leaks in the transmission line Repair leaks if possible If the problem persists contact CommScope Customer Service See Section 6 Check the display on the controller Toggle the ON OFF switch attached to power connection Compressor does not turn Check input voltage per wiring diagram If the problem persists contact CommScope Customer Service See Section 6 Ensure that the drain line tubing exiting the bottom of the drain solenoid is not clogged When the compressor cycles ON air and moisture should flow out of the drain line into drain pan for a few seconds while the valve is open Filter bowls show excessive water If solenoid does not vent verify proper voltage is present for the first few seconds after the compressor starts and drops to 0 volts If proper voltage is present and solenoid does not shift replace 15 SAHARA SERIES DryLine DEHYDRATOR USER MANUAL Left blank for notes SAHARA SERIES DryLine DEHYDRATOR USER MANUAL DISCRETE ALARMS SAHARA2A ONLY 9 SAHARA2A ONLY GROUND GREEN WITH YELLOW STRIP gt FAN EE 4 GROUND QO BS 5 GREEN lt 2 lt I lt 0 lt
18. on system volume and overall system leak rate When connected to a normal system the dehydrator s duty cycle should not exceed 10 and will maintain the system pressure between 14 kPa 2 0 psig and 34 kPa 5 0 psig If the duty cycle significantly exceeds 10 check the system for leaks When open to atmosphere the dehydrator will run continuously and provide approximately 56 3 SLPM 2 0 SCFM The display will also reflect a pressure between 0 and 34 kPa 5 0 psig while the output flow is between 0 and 56 3 SLPM 2 0 SCPM The pressure sensor measures pressure at the Remote Sense port and will show the actual pressure in the transmission lines or to the distribution manifold SAHARA SERIES DryLine DEHYDRATOR USER MANUAL 1 4 Alarms The SAHARA Series offers Low Pressure and Excess Run alarms as a standard feature In addition a summary alarm connection is provided on all units Additional alarms are available in the discrete alarm version These include High Humidity and Power Fail alarms All four alarms plus the summary alarm have discrete connection contacts Alarm conditions are indicated on the display The alarms are Form C dry contacts and have connection options for Normally Open NO or Normally Closed NC configurations The external alarm monitoring system supplied by others is connected to the terminal strip located on the rear of the cabinet A small slotted screwdriver is necessary to make the c
19. onnections The connections to the alarm strip are as follows refer to Figure 1 for correct locations and colors of the wires on the terminal strip 1 Summary 1 Discrete 588998 Figure 1 Discrete Alarm Terminal Strip with Summary Alam DISCRETE WIRE FUNCTION REFERNCE WIRE TERMINAL COLOR ALARM FUNCTION 2 OU Ono 1 ooo 353 WIRE FUNCTION REFERNCE WIRE TERMINAL COLOR ALARM FUNCTION BLACK SUMMARY NC WHITE SUMMARY COM SUMMARY NO Figure 2 Summary Alarm Terminal Strip Alarm Definitions Activates when Excess Run and or Low Pressure alarms are triggered It will also report High Humidity if unit is equipped with full alarms The summary alarm does not report Power Fail Summary Activates when power is removed from the dehydrator This includes turning the power off at the switch Power Fail High Humidity Activates when system or dehydrator output humidity rise above 7 5 relative humidity At initial installation this alarm will continue to alarm until the system has been properly purged Excess Run Factory strapped run time set in accordance with the normal run time for the dehydrator application Selectable times are 1 10 30 120 and 240 minutes with the 10 minute selection used on the SAHARA Series as the default setting Low Pressure If system pressure falls below the low pressure trigger point 7 kPa 1 0 psig on the SAHARA Series the low p
20. ressure alarm sensor will activate an alarm contact This alarm is an indication of a significant system leak or a dehydrator failure Note All of the alarms clear and reset automatically but can be manually reset in the display menus However if the alarm condition still exists the alarm will return immediately after being reset SAHARA SERIES DryLine DEHYDRATOR USER MANUAL re NOTIN HIGH PRESSURE 1 HSE SENSOR U2 i Br ens HUMIDITY SENSOR MRO50B he ONLY COMP OUTPUT P4 LOW PRESSURE EL 3E T Bi SENSOR SOLENOID 1 LIN BR FILTER DRAIN a a 6 4 4 5 A o ir 48 Vac COMP OUTPU SUM ALARM KEVPAD DISCRETE ALARMS P7 P8 P9 MRO50B ONLY NO NC J4 NO NC Figure 3 Pin and Jumpers Location 1 5 Specifications SAHARA Series Dehydrator Output Pressure kPa psig 14 35 2 0 5 0 Dimensions Height mm in w feet 292 11 5 without feet 267 10 5 Output capacity 56 6 SLPM Width mm in 432 17 0 2 0 SCFM Depth mm in 381 15 0 total approx Net weight kg Ib 24 95 55 0 Output Dew Point 45 C 50 F or better Alarms Operating Temperature Range 10 to 40 C Power Fail Alarm loss of input power 14 to 104 F optional Electrical Input High Humidity Alarm Set Point 7 5 RH SAHARA2 amp SAHARA2a 220 Vac 60 Hz optional factory set SAHARA2 amp SAHARA2a 240 Vac 50 Hz Excess Run Alarm 10 minutes factory set Output
21. rom the outside 1 3 The SAHARA Series maintains transmission line pressures from 14 34 kPa 2 0 to 5 0 psig It is intended for standard microwave antenna Broadcast applications and any other transmission line pressurization requirement that supports a medium pressure limit Theory of operation The SAHARA series of DryLine Dehydrators while similar in moisture removal technology operates differently than some of the DryLine series of dehydrators In order to maintain a positive constant level of pressure to medium air volume systems and to maintain an acceptable dryness level in the product air stream a downstream pressure sensor is utilized for controlling the operation of the unit This feedback controlled sensor prompts the unit to engage at 14 kPa 2 0 psig and shut down at 34 kPa 5 0 psig In addition to monitoring the downstream flow the system is also set up to utilize the downstream air volume to provide the dry air for the feedback loop The feedback loop is necessary to maintain the dryness of the membrane cartridge and will consume a small percentage of the air supplied by the dehydrator During normal operation the bleed air in the feedback loop will cause the pressure to slowly drop in the downstream air volume and the SAHARA compressor will cycle automatically The dehydrator will only cycle off when it sees a down stream pressure of 34 kPa 5 0 psig The rate of these cycles however will vary based
22. s seated completely in the housing and then replace the cover Discard old elements 3 3 Annual Inspection Warning Electrical Hazard Unplug power cord before servicing unit Inspection includes checking for loose or damaged hoses fittings and electrical connections Open the top cover and front door and verify that there is no significant water build up in the two filter bowls located inside the front cover of the dehydrator There may be some droplets of water in the filter bowls the lower portion of each bowl but there should be only a small amount of liquid in either bowl 3 3 1 3 3 2 3 3 3 SAHARA SERIES DryLine DEHYDRATOR USER MANUAL If there is excessive water refer to the troubleshooting section 4 Replacement of the elements in the coalescing filters is covered in the maintenance section of this manual Check the electrical connections Check the screw at the power input connector to ensure that the AC power cord is securely terminated Check the screw in alarm terminals to ensure that all wire connections are tight A loose or damaged connection may result in erratic operation and unnecessary downtime Refer to the troubleshooting section 4 if an electrical problem is encountered Check the ground wire Check that an electrical safety ground is installed on the stud on the rear of the dehydrator This connection point is adjacent to the power input connector It is intended to be customer
23. sfully connected you can enter HELP to view a list of commands In order to access your unit s entire event log click on Transfer on the command bar at the top of the page Click on Capture Text in the drop down menu and then choose a location on your computer to store the text file Type in GLOG and hit enter Click on Transfer again and click on Transfer Text and select Stop from the side scroll menu Open the text file from the storage location Copy the entire text to MS Word to view the event log correctly When viewing events on the display of the unit the following codes will be shown SAHARA SERIES DryLine DEHYDRATOR USER MANUAL LCD Reference in code Log download string EV 0 LOGEV POWERUP Event powering up EV21 LOGEV HH ALM _ Event humidity alarm trip EV 2 LOGEV_XR_ALM _ Event excessive run time alarm trip EV 3 LOGEV_LP_ALM _ Event low pressure alarm trip EV 4 LOGEV_HP_ALM _ Event high pressure alarm trip EV 5 LOGEV_CP_ALM _ Event compressor fault trip 6 LOGEV CLR _ Event log cleared EV 7 LOGEV_PWRDWN _ Event powering down EV 8 LOGEV_CL_FAIL _ Event Comp lifetime eeprom fail 12 For each additional unit that is re flashed the virtual Com port will increment by one If the first unit is Com3 the next will be Com4 and so on 11 SAHARA SERIES DryLine DEHYDRATOR USER MANUAL
24. st for inspection and repairs if the unit is out of warranty fax a Return Material Authorization Sheet to you Repair Center Process A method of Payment must be provided prior to issuing of RMA regardless of warranty status In Warranty Repair Most CommScope pressurization products carry a warranty of one to three years depending upon model number Warranty details are available on our web page If your unit falls within its warranty period inspection and repairs will be performed at no charge and the unit will be promptly returned to you If a warranty unit is deemed no problem found an inspection fee and freight will be charged to the customer Out Of Warranty Repair We will inform you with the cost of repair and obtain your approval to proceed with repairs or if you elect not to have the unit repaired your instructions 6 4 on disposition of your unit When repairs are complete we will return your unit and invoice you for the inspection charge materials used for the repair and labor applied to complete the repair If you elected not to repair the unit we will invoice you for the inspection and freight charge if unit is to be returned 20 Loaner Units Loaner units are available from the repair center to maintain your system while repairs are being performed If you feel you need a loaner please contact us at at one of the numbers listed under contact numbers A for the full value of the unit must be iss
25. ued prior to shipment Also contact us when the loaner is ready to be returned so that we can issue a NEW RMA number to identify your return and create the appropriate credit to your account Damages to loaner will be deducted from the Packing Instructions Pack your unit securely for shipment to the Repair Center If you received a loaner unit we suggest you use the box and packing materials to return your unit Otherwise we have factory packing materials available for a nominal fee Enclose a completed copy of this form inside the box and clearly mark your Company Name and RMA XXXXXXX on outside of the box Address the box to the following Ship To Address COMMSCOPE PRESSURIZATION SERVICE CENTER XXXXXXX 11312 S PIPELINE RD EULESS TX 76040 6629 Please note Units received with Biological animal contamination will be returned unrepaired or scraped after notification and you will be invoiced for inspection and freight Contact Numbers If you have any questions about the repair process or status of your unit please contact us directly through one of the following methods Telephone below TEL 817 864 4150 817 864 4155 FAX 817 864 4179 RoHS Inquiries For inquiries on RoHS please contact the following CommScope Inc Corke Abbey Bray Co Dublin Ireland Attn Legal Department
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