Altec AIR MHR Series Manual Download Page 1

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MHR SERIES

HEATLESS REGENERATIVE

AIR DRYERS

Summary of Contents for MHR Series

Page 1: ...1 MHR SERIES HEATLESS REGENERATIVE AIR DRYERS...

Page 2: ...AD THIS MANUAL CAREFULLY IT CONTAINS INFORMATION ABOUT SAFETY AND THE SAFETY OF OTHERS ALSO BECOME FAMILIAR WITH THE PROPER INSTALLATION AND CONTROLS OF THE AIR DRYER BEFORE OPERATING ONLY QUALIFIED T...

Page 3: ...ST BE FILLED WITH DESICCANT AT THE JOB SITE ON MODELS MHR800 AND ABOVE VISUALLY CHECK THE DRYER FOR DAMAGE THAT MAY HAVE OCCURRED IN TRANSIT IF THERE IS EVIDENCE OF DAMAGE IMMEDIATELY ENTER A CLAIM WI...

Page 4: ...and outlet flow is the amount of purge air required This air is purged to atmosphere and is not available for use downstream certain air supply to dryer meets your air demand plus purge air requireme...

Page 5: ...ping assembly After filters located after the dryer help eliminate the possibility of desiccant dusting and carry over into the air system It is recommended to install a check valve after the dryer to...

Page 6: ...ER FILTER 3 RECEIVER TANK 7 3 VALVE BYPASS 4 AC SERIES PRE FILTER INSTALLATION A Recommended for systems that consume less than or equal to the maximum capacity of the air compressor INSTALLATION B Re...

Page 7: ...atmosphere This process takes about ten minutes to complete with the drying cycle using about five minutes to provide the desired dew point The regeneration cycle takes approximately 45 seconds less...

Page 8: ...ssurizing The Tower Repressurizing LED will be illuminated indicating which tower is online and in the drying mode Failure to Shift The Failure to Shift LED will be illuminated when a dryer shift fail...

Page 9: ...is 0 PSIG Check offline purge muffler for airflow No airflow should be present If no airflow is present the outlet and purge check valve have a positive seal Repeat procedure next cycle to check oppo...

Page 10: ...10 PNEUMATIC CONTROLS...

Page 11: ...11 ELECTRICAL SCHEMATIC...

Page 12: ...urpose of the probe and its associated electronics is to rst measure the wetness of the air within the desiccant beds and then regenerate the desiccant beds only when the moisture loading reaches a pr...

Page 13: ...essary Desiccant contaminated by oil 1 Check pre filter element 2 Check pre filter drain operation 3 Replace desiccant and or dryer if necessary Excessive Pressure Drop in Air Dryer Excessive flow rat...

Page 14: ...lier steps if no pilot air is detect ed 3 Check depressurization timer circuit Dryer Fails to Purge Purge valve does not close Purge valve stuck in closed position 1 Check timer micro switch 2 Check s...

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