MT500C SERIES DryLine® DEHYDRATOR USER MANUAL
Contents
1. Overhaul Kit MTSOOB KIT OVRHL Filter Element Replacement Kit MTSOOB KIT ELMNT DET Filter Bowl Assemble Replacement Kit MT500B KIT FLTRS Filter Bowl Assemble and Dryer Tube Replacement Kit MT500B KIT DRYER Solenoid Replacement Kit MTSOOB KIT SOLND I Section 6 Customer Service sss sos ww sos son soe eee Fu coe Ws 6 0 000000000 6 1 In Case of Trouble us sace e iex aces bes n A Re d AUR ee J 6 2 Initial Steps by 6 3 Center Process ss cr dunk rece Cen e RH ee PRR aou MT500C SERIES DryLine DEHYDRATOR USER MANUAL General Information 1 1 Introduction This manual contains the information you need to install operate and maintain your MTSOOC Series DryLine Dehydrator Please take the time to read 1 3 this manual before attempting to operate or service the unit 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 c2. on the rear of the unit 1 2 3 2 5 4 Place alarm connection wires in proper terminals and tighten the screw on the terminal block See Section 1 4 for alarm locations The relay contacts are rated at 2 A non inductive 30 Vdc 1 Connecting Dehydrator to the Transmission Line 2 CAUTION Check the antenna and transmission line system pressure rating before connecting the dehydrator to the system 3 Using supplied PTFE tape screw one of the included 3 8 compression fittings into the output bulkhead There is an elbow and a straight compression fitting included with the unit Insert one end of the 3 8 poly tube feed line tubing into the compression fitting on the dehydrator output port Tighten securely with a 9 16 wrench Be careful not to over tighten Connect the other end of the poly tube to the transmission line Using supplied PTFE tape screw one of the included 3 8 compression fittings into the output bulkhead There is an elbow and a straight compression fitting included with the unit Insert one end of the 3 8 poly tube feed line tubing into the compression fitting on the dehydrator output port Tighten securely with a 9 16 wrench Connect the dehydrator to the transmission line and pressurize the system The system pressure should reach program setting Wait 15 minutes while the air absorbs moisture in the system then disconnect the dehydrator from the transmission line and allow the air t
3. 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 flow 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 When connected to a normal system the dehydrator s duty cycle should not exceed 10 and will maintain the system pressure between 2 1 kPa 0 3 psig and 103 4 kPa 15 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 14 SLPM 0 5 SCFM The display will also reflect a programmable pressure between 0 and 103 4 kPa 15 0 psig while the output flow is between 0 and 14 SLPM 0 5 SCFM The pressure sensor measures pressure beyond the flow control orifice and will show the actual pressure in the transmission lines or to the distribution manifold Alarms The MT500C 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 ve
4. applying solution not to wet wiring or electronics 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 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 Ensure that the drain line tubing exiting the bottom of the drain solenoid is not clogged When the compressor cycles off air and moisture should flow out of the drain line into drain pan If solenoid does not vent verify proper voltage is present when Filter bowls show excessive water compressor is running and absent when compressor is off If proper voltage is present and solenoid does not shift replace 12 MT500C SERIES DryLine DEHYDRATOR USER MANUAL 3343510 e21329 3 92 18 200S LIA 411813 E BROWN 6 ORANGE O BLUE 00712 GREEN 1 GION310S annoys 8 uaria STIVLAG 92 18 NO SS3NWVH 0 GATIVLSNI AHOLOV AVuD MONIA 35NVuO qas 3310 33 ania NVL 30000 BLACK 6d 8d SWavi
5. completely in the housing and then replace the cover Discard the old element 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 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 bowels 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 MT500C SERIES DryLine DEHYDRATOR USER MANUAL If there is excessive water refer to the 3 4 troubleshooting section Replacement of the filter elements in the water filter and coalescing filter is covered in the overhaul section of this manual Check the electrical connections Check the screw at the power input connector lock 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 if an electrical problem is encountered 3 4 1 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
6. the output port at the rear of the unit to make sure air is flowing 2 4 3 Programming 1 With the unit turned ON 2 Press SELECT until the screen reads PROGRAM MODE Press the ENTER button 4 The screen will read PASSWORD 5 Press the up arrow until a 1 is displayed Press the enter button Repeat until 1111 is displayed and press enter 6 Thescreen will then read Change XR TIME 7 Usethe up and down arrow buttons to increase or decrease the excess run time alarm setting and press enter when the desired value is reached 8 The screen will then read CHANGE STOP PRESSURE CAUTION THE END USER IS RESPONSIBLE FOR VERIFYING THE PRESSURE LIMITS OF THE TRANSMISSION LINE AND ANTENNA SYSTEM DAMAGE CAN OCCUR IF THE SYSTEM IS OVER PRESSURED 9 Usethe up and down arrows to adjust the stop pressure this must be a value larger than the start pressure to the desired setting and press the ENTER button 10 The screen will then read CHANGE START PRESSURE 11 Use the up and down arrows to adjust the start pressure this must be a value smaller than the stop pressure to the desired setting and press the ENTER button 12 The screen will then read CHANGE ALARM HIGH 13 Use the up and down arrows to adjust the HIGH ALARM pressure this must be a value larger than the stop pressure to the desired setting and press the ENTER button 14 The screen will then read CHANGE ALARM LOW 15 Use the up and down arrows to adjus
7. COMMSCSPE Andrew Solutions MT500C SERIES DryLine DEHYDRATOR USER MANUAL Bulletin AE01B A0591 001 Rev A 2014 CommScope Inc All rights reserved 01 14 MT500C SERIES DryLine DEHYDRATOR USER MANUAL i _ Section 1 General Information wee cee cee tee sse 1 1 10000001001 ER ES ies Re 1 2 DOSCRID UE OM o ar iue OE de eran 1 3 Theory of operation a koh TENE bene ood babe dare doen Rael 4 1 4 Alarms Tm Figure 1 Discrete Alarm Terminal Strip with Summary Alam Figure 2 Summary Alarm Terminal 5 Figure 3 Pin and Jumpers Location 1 5 Specifications MT500C Dehydrator Section 2 Installation i uu eee BES whe ee xb 2 1 Unpacking and Inspection ee ne nee cee eee cee ee nee 2 2 Controls and 15 2 2 1 Event Log Codes 2 3 Installing the Dehydrator TT 2 3 1 19 Rack Mounting ar set on optional shelf D CP 2 4 2 Testthe Dehydrator eee haa ha hail 2 4 3 Pi ogrammlhgi sio Ca 2 4 Power Connections GAS BAO GES REN
8. GRAS 9848 we Sa Gan 2 4 1 AC Power REP 2 5 Connecting the Alarm Outputs nie 2 6 Connecting Dehydrator to tlie Transmission Line 2 7 Purging the Transmission Line Section 3 Maintenance cco Ve 3 0 Maintenance eR eR REAPER we SAS 2545 3 1 Preventive Maintenance 3 2 Dehydrator Filter Element Replacemielit 3 3 Annual Inspection D 3 3 1 Checkthe electrical connections 3 3 2 Check the ground wire 3 3 3 Check the hour meter 3 4 Parts Replacement and Dehydrator Overhaul LL 3 41 ImCaseOfDifficulby ise aaa b XO RE e RCM PUE wien AA RN c dor ee 3 42 10015 mn 3 4 3 Overhaul Procedure mI 3 4 4 Unit Shutdown and Removal 3 45 Unplug the unit from the power supply 3 5 Service Restoration RECOMMENDATION ehh rien O 0000004400000 68 0 02 W gt gt N Section 4 Figure 4 MT500C 81326 Electrical with Discrete Figure 5 MT500C Pneumatic BW I Section 5 Replacement Parts
9. ators 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 Record the Model Number e g MT500C and Serial Number from the product label as you will be asked for these when you call Two main locations are currently available to help From North America Telephone 1 800 255 1479 Fax U S A 1 800 349 5444 International Telephone 1 779 435 6500 Fax Number 1 779 435 8579 Web Access Internet www commscope com email prc commscope com 6 2 6 3 MT500C SERIES DryLine DEHYDRATOR USER MANUAL 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 e ask for your unit Model Number and Serial Number e check the warranty status of the unit e advise the availability of a loaner unit e provide an estimate of the cost for inspection and repairs if the unit is out of warranty e faxa 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 a
10. be customer installed in the field 3 4 2 Check the hour meter Check the hour meter on the front panel to determine the duty cycle of the dehydrator If the dehydrator has been running for more than 3 4 3 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 3 4 4 10 Parts Replacement and Dehydrator Overhaul CommScope MT500C 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 e Adjustable open end wrench e 2 Phillips screwdrivers Small flat blade screw driver Overhaul Procedure When the MT500C compressor run time reaches 6000 hours or a multiple of 6000 hours it is time to rep
11. city 14 0 SLPM 0 5 SCFM Net weight kg lb 16 55 36 1 2 total approx Alarms Output Dew Point 45 C 50 F or better Power Fail Alarm loss of input power Operating Temperature Range 1 to 40 C High Humidity Alarm Set Point 7 5 RH 33 to 104 F factory set Electrical Input Excess Run Alarm 10 minutes factory set 81326 230 10 Vac 50 60 Hz Low Pressure Alarm kPa psig Programmable Output Connector 3 8 polytube compression MT500C SERIES DryLine DEHYDRATOR USER MANUAL 2 1 Unpacking and Inspection Open carton Remove the top piece of foam packaging Carefully remove the installation accessories manual and dehydrator Check the dehydrator for shipping damage such as dents or loose parts 2 2 Controls and Displays Default password is 1111 Familiarize yourself with the controls and displays prior to installing or testing the dehydrator 1 1 eb oo N 21 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 scrollin
12. g will occur at a faster rate Used to allow the user quick access to the system event log Event Log Codes EV 0 Event Power Up 1 Event High Humidity Alarm EV 2 Event Excessive Run Time Alarm EV 3 Event Low Pressure Alarm EV 4 Event High Pressure Alarm EV 5 Event Compressor Fault EV 6 Event Log Cleared EV 7 Event Powering Down EV 8 Event Compressor Lifetime Eeprom Fail Installing the Dehydrator 19 Rack Mounting or set on optional shelf 2 4 2 4 1 MT500C SERIES DryLine DEHYDRATOR USER MANUAL Power Connections Confirm your dehydrator electrical input matches the available power MT500C 81326 230 10 Vac 50 60 Hz AC Power AC units should be connected into a standard 15 Amp power receptacle of the proper voltage Make sure the power circuit is properly grounded Power cord supplied one 230 Vac International with stripped leads 2 4 2 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 Test the Dehydrator Turn the dehydrator ON there is about a 4 second delay and check
13. lace 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 low pressure alarm the compressor may be in need of an overhaul This does not always coincide with the 6000 hour time frame If the low pressure alarm is triggered check the system for leaks If no leaks are detected the compressor will need to be overhauled Unit Shutdown and Removal In order to perform an overhaul on the MTSOOC 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 MT500C SERIES DryLine DEHYDRATOR USER MANUAL 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 T F 3 4 5 Unplug the unit from the 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
14. midity Activates when system or dehydrator output humidity rise above 7 596 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 500 as the default setting Low Pressure If system pressure falls below the programmable low pressure trigger point on the MT50OC the low pressure 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 MT500C SERIES DryLine DEHYDRATOR USER MANUAL USB NOT IN HIGH PRESSURE 1 SENSOR U2 Vdc INPUT HUMIDITY P2 SENSOR MRO50B P3 ONLY 115 Vac COMP OUTPUT P4 MT PMT SERIES LOW PRESSURE SENSOR U4 SOLENOID FILTER DRAIN MT PMT SERIES P6 AC NOT IN USE SUM a KEYPAD DISCRETE ALARMS 7 NO NC J4 P9 Figure 3 Pin and Jumpers Location 1 5 Specifications MT500C Dehydrator Output Pressure programmable range Dimensions Height cm in 43 2 17 kPa psig 0 103 4 0 3 15 0 Width cm in 26 4 10 4 Depth cm in 32 12 6 Output capa
15. o vent Repeat steps 1 and 2 twelve times to purge the system 3 1 3 2 MT500C SERIES DryLine DEHYDRATOR USER MANUAL Maintenance The MT500C 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 Preventive Maintenance The annual maintenance of MT500C consists of a preventative maintenance inspection of the dehydrator and replacement of the foam air intake filter 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 access panel opened for maintenance In addition to the annual inspection a complete overhaul is recommended every 6000 hours or sooner if local conditions warrant Dehydrator Filter Element Replacement Replace the air intake filter The air intake filter protects the compressor from contamination and dust Periodic replacement extends the life of the compressor To gain access to the element push in on the cover and rotate the house approximately 1 4 turn CCW The filter is made of a fibrous material It should be replaced once a year or more frequently if the operating environment is very dusty 3 3 CAUTION Do not apply oil or other chemicals to the filter element Make sure the element is seated
16. oncerning use of the appliance by a person responsible for their safety 1 2 Description 500 Series dehydrators provide dry air for pressurizing medium between 283 to 3400 liters 10 and 120 cubic feet in volume antenna and transmission line systems The dehydrators produce 45 C 50 F dew point dry air at a nominal volumetric flow rate of 14 SLPM 0 5 SCFM Each dehydrator consists of an electrically driven air compressor a membrane dryer assembly an 1 4 automatic transmission line pressure sensing system and alarm outputs housed in a rigid metal chassis It is designed to mount directly to a rack on a wall shelf or 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 from the outside or through easy to access service panels The MT500C maintains transmission line pressures programmable from 2 1 103 4 kPa 0 3 to 15 0 psig It is intended for standard microwave antenna applications and any other transmission line pressurization requirement that supports a medium pressure limit Theory of operation The 500 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
17. 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 room to purge the membrane dryer of any acquired moisture before reconnecting to the transmission line system 11 MT500C 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 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 cover Dehydrator display does not light unit does not run 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 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 clear remove cover and verify tubing and wiring connections are secure If the pressure does not stay constant after shutting off the valve apply leak detector to isolate the leak in the dehydrator exercise care when
18. rsion 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 MT500C SERIES DryLine DEHYDRATOR USER MANUAL 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 connections 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 Figure 1 Discrete Alarm Terminal Strip with Summary Alam DISCRETE WIRE FUNCTION REFERNCE WIRE TERMINAL COLOR ALARM FUNCTION s GREEN s POWER FAL CoM s seb POWERFALNG 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 the 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 Power Fail Activates when power is removed from the dehydrator This includes turning the power off at the switch High Hu
19. t 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 CommsScope Pressurization Service Center RMA 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
20. t the LOW ALARM pressure this must be a value smaller than the start pressure to the desired setting and press the ENTER button 16 The screen will then read CHANGE PASSWORD 17 Press the SELECT button to return to normal operation 2 5 Note 2 6 MT500C SERIES DryLine DEHYDRATOR USER MANUAL Connecting the Alarm Outputs Be careful not to over tighten Connect the other end of the poly tube to the transmission line You may have to go through the programming steps If the transmission lines have not been purged continue with section 2 7 Otherwise proceed to section 3 Purging the Transmission Line Air in the transmission line system must be replaced with dry air to ensure satisfactory operation of the transmitted signal Determine the total system volume Divide the system volume by the flow rate of the dehydrator 850 SLPM 30 SCFH to determine the number of hours needed for one purge cycle Open the far end of the transmission line 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 several times before they are set to desire settings Note EXAMPLE you will not be able to program thus stop pressure below the start pressure You need a lower the factory default setting start pressure before you will be able to set the stop pressure 2 7 To connect the alarms locate the terminal block TB 1
21. v 313 510 SS3NHVH H3dlAf OES E H2LIMS 41815 MOTI3A 33 01 4010 6 INnH 405534604032 W I 13 MT500C SERIES DryLine DEHYDRATOR USER MANUAL c I a o B 5 c a Q e e wn 2 LI 0 o 5 ES MT500C SERIES DryLine DEHYDRATOR USER MANUAL Section 5 Section 6 Replacement Parts Customer Service Go to commscope com eCatalog for the most current parts 6 0 Introduction available for your dehydrator http awapps commscope com catalog andrew catalog aspx m 9 Overhaul Kit MT500B KIT OVRHL Filter Element Replacement Kit MT500B KIT ELMNT a Je LL m NL Filter Bowl Assemble Replacement Kit MT500B KIT FLTRS Filter Bowl Assemble and Dryer Tube Replacement Kit MT500B KIT DRYER Solenoid Replacement Kit MT500B KIT SOLND 15 CommScope provides in warranty and out of warranty repairs as well as dehydrator and 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 prepared to help you with the following e Technical Assistance e Troubleshooting e Repairs e Loaner Units e Spare Parts e Installation Materials e System Accessories In Case of Trouble The first step you should take if trouble develops using a dehydrator is to read the oper
22. vailable 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 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 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 one of the contact numbers A P O for the full value of the unit must be issued 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 P O 16 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 uni
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