CommScope MR050B Series User Manual

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MR050B SERIES

DEHYDRATOR

USER MANUAL

Bulletin AE01B-A0553-001

Rev: N

(12/12)

Table of Contents

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Summary of Contents for CommScope MR050B Series

Page 2: Table Of Contents
Initial Steps by CommScope ........
Page 3: General Information
MR050B SERIES DEHYDRATOR USER MANUAL pressures between 2.0 and 3.4 kPa (0.3 and Section 1 0.5 psig). It is intended for use with high General Information performance microwave antennas and earth Introduction station antennas. This manual contains the information you need Operation to install, operate, and maintain your MR050B Series dehydrator. Please take the time to read MR050B series dehydrators include a this manual before attempting to operate or compressor, color indicating desiccant, high and service the unit. low-pressure sensors, and a low-pressure alarm sensor. This appliance is not intended for access by the general public.
Page 4 MR050B SERIES DEHYDRATOR USER MANUAL Alarm Definitions: BLACK Summary: Activates when the High Pressure WHITE (only indicated on summary contacts), Excess Run, and/or Low Pressure alarms are triggered. The summary alarm does not report Power Fail. WIRE FUNCTION REFERNCE WIRE Power Fail: Activates open when power is COLOR ALARM FUNCTION TERMINAL removed from the dehydrator. This BLACK SUMMARY NC includes turning the power off at the switch. WHITE...
Page 5: Specifications Mr050B Dehydrator
MR050B SERIES DEHYDRATOR USER MANUAL NOT IN HIGH PRESSURE SENSOR Vdc INPUT (MR050B ONLY) 115 Vac COMP OUTPUT (MT/PMT SERIES) LOW PRESSURE SENSOR SOLENOID (FILTER DRAIN MT/PMT SERIES) AC MAIN 48 Vac COMP OUTPUT SUM ALARM KEYPAD DISCRETE ALARMS (MR050B ONLY)
Page 6: Installation
MR050B SERIES DEHYDRATOR USER MANUAL 2.2.1 Event Log Codes Section 2 Installation EV= 0 Event = Power Up Unpacking and Inspection EV= 1 Event = High Humidity Alarm EV= 2 Event = Excessive Run Time Alarm Open Carton EV= 3 Event = Low Pressure Alarm EV= 4 Event = High Pressure Alarm Remove the top piece of foam packaging. EV= 5 Event = Compressor Fault...
Page 7: Safety Ground
MR050B SERIES DEHYDRATOR USER MANUAL Note: White stripe wire: + 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. 1. Determine the total system volume. 2. Divide the system volume by the flow rate of the dehydrator (3.0 SCFH) to determine the number of hours needed for the purge cycle. 2.4.2 Safety Ground 3. Open the far end of the transmission line.
Page 8: Maintenance
MR050B SERIES DEHYDRATOR USER MANUAL Check the electrical connections. Section 3 Maintenance Check the screw at the power input connector Maintenance to ensure that the ac power cord is securely terminated. Check the screw-in alarm terminals The MR050B Dehydrator requires relatively to ensure that all wire connections are tight. little maintenance to ensure satisfactory operation over long periods of time. This section A loose or damaged connection may result in outlines the recommended annual preventive erratic operation and unnecessary downtime. maintenance for the unit and the suggested Refer to the troubleshooting section if an overhaul for every 6000 hours of compressor electrical problem is encountered.
Page 9: Service Restoration
MR050B SERIES DEHYDRATOR USER MANUAL Remove the chassis top and front panels for overhaul. 1. Unplug the unit from the power supply. 2. Follow the instructions included in the compressor replacement kit. When the replacement is complete, reinstall. Service Restoration RECOMMENDATION: Verify unit operates normally and return to service.
Page 10: Troubleshooting
MR050B SERIES 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 fails 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 and check for loose connections. Refer to the wiring diagram for proper connections. Figure 4 for summary Dehydrator display does not light, unit does not run.
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Page 14: Replacement Parts
MR050B SERIES DEHYDRATOR USER MANUAL Section 5 Section 6 Replacement Parts Customer Service Introduction 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: Technical Assistance Troubleshooting Repairs Loaner Units Spare Parts Installation Materials System Accessories. In Case of Trouble 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.
Page 15: Initial Steps By Commscope
MR050B SERIES DEHYDRATOR USER MANUAL Initial Steps by CommScope while repairs are being performed. If you feel you need a loaner, please contact us at at one When your call or fax communication is of the numbers listed under contact numbers. received, the CommScope staff will work with A P.O. for the full value of the unit must be you to pinpoint the possible cause of trouble. If issued prior to shipment. Also contact us when the pressurization equipment is suspect, they the loaner is ready to be returned so that we will: can issue a NEW RMA number to identify your return and create the appropriate credit to your • ask for your unit Model Number and Serial account. Damages to loaner will be deducted Number from the P.O.