SSD Manual [PDF]

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HEATLESS DESICCANT COMPRESSED AIR DRYER



MODELS SSD 100 - 3000 INSTALLATION, OPERATION & MAINTENANCE MANUAL



Service Department 1-800-SULLAIR Option: 1454



MANUAL PART # 02250182-666 REV.1



1625



E Second St,



Michigan City, IN



46360



•



PH:



888-SULLAIR



•



Fax:



219-878-4206



CONTENTS 1.



Installation and Inspection .............. 4



12. Desiccant Replacement ................ 12



25. Maintenance Log .......................... 51



2.



Safety and System Precautions ..... 5



13. Inlet and Exhaust Valve Repair ..... 12



26. Purge Orifice Chart……………..52



3.



General Operation .......................... 6



4.



Sequence of Operation .............. 6 - 8 - Diagram



14. Parts .............................................. 13 - General Parts Description - Recommended Spare Parts



5.



Start Up .......................................... 8



6.



Operation Notes ........................ 8 - 9 - Variable Cycle Control - Cycle Timing



7.



Shutdown Procedure ...................... 9 - Isolation - Depressurization



8.



What are “Demand Cycles?” ... 9 - 10



9.



Purge Flow ............................. 10 - 11



10. Dryer Capacity .............................. 11 11. Maintenance Program .................. 11 - Daily - Weekly - Semi-Annually - Annually



27. Powersaver Plus Probe Specs.53



15. Flow Diagram & Parts List..14-31 - SSD100 to SSD3000 16. Troubleshooting ..................... 32 - 33 17. Wiring Diagram .................... 34 - 44 - SSD100 to SSD3000 - Power Saver Plus - Power Saver 19. Timing Charts ........................ 45- 46



20. Analyzing Chart ............................ 47 21. Power Saver Plus System .... 48 - 50



3



Dryer Outlet Flow Dryer outlet flow is equal to the dryer inlet flow minus the purge flow.



Sizing is approximate only. Consult factory for exact sizing. Downsizing could cause pressure drop, bed fluidization, or poor dew point performance due to low contact time. The previous chart assumes 100°F or less inlet air temperature.



10. DRYER CAPACITY



11. MAINTENANCE PROGRAM



Checking Dryer Size: A. Determine operating pressure.



Daily



B. Determine input SCFM into dryer.



1. Check dew point or humidity level if instrumentation is available. Any difficulty with the dryer will result in poor dew point performance.



Read down the nearest operating pressure column until you arrive at a rating equal to or greater than your equipment; then read to the left for dryer model. PRESSURE



2. Check for correct purge setting and air flow from purge exhaust. 3. Check gauge readings and sequence of operation through complete cycle.



MODEL



60



80



100



120



140



SSD-100



70



88



107



126



144



SSD-160



88



111



135



159



182



4. Check auto drain operation on pre-filter, separator and receiver. A manual drain valve installed (in addition to the automatic drain) at these points will ease checking of the automatic drains.



SSD-220



130



165



200



235



270



5. Ensure there is no back pressure in the regenerating tower.



SSD-300



195



248



300



352



405



Weekly



SSD-400



261



330



400



470



540



1. Check differential pressure across pre-filter and afterfilter elements. Replace if required.



SSD-500



332



421



510



599



688



SSD-600



423



537



650



780



877



SSD-750



521



661



800



940



1079



SSD-1050



651



826



1000



1175



1359



SSD-1450



975



1239



1500



1762



2024



SSD-2000



1303



1652



2000



2350



2698



SSD-2500



1694



2147



2600



3054



3508



SSD-3000



1954



2478



3000



3524



4048



EXAMPLE: You want to dry 95 SCFM at 80 PSIG - go to the 80 PSIG column and read down to 111 (this is the first number equal to, or greater than your requirement). Now read the dryer model number to you left. A model SSD-160 is required.



2. Check and maintain operating conditions; pressure, flow, and temperature within the design parameters of the dryer.



Semi-Annually 1. Inspect desiccant for physical condition. Desiccant from a freshly regenerated bed should be white, dry to touch and of consistent size and shape. If desiccant condition is in question, send a sample to SULLAIR for analysis. 2. Check and clean mufflers. This may be required often under certain conditions or if back pressure develops. Mufflers can be cleaned by blowing backwards through them with clean, dry air. Mufflers may require replacement if severely clogged, or after a few cleanings. 3. Inspect pre-filter and afterfilter elements. 4. Clean automatic drain. 5. Replace Control Air Filter Element. 6. Check and Slowdown Safety Valves. Refer to manufacturer’s instructions. 7. Clean dryer.



Annually 1. Inspect Inlet and Exhaust Valves (rebuild as needed). 2. Clean Control Solenoid Valves.