January 207 80-572 Rev - 2950 Mechanic Street Lake City, PA 6423 USA Phone: -800-840-9906 Fax: 84-774-0778 Email: info@vanairsystems.com www.vanairsystems.com INSTALLATION, OPERATION & MAINTENANCE MANUAL FOR DRY PAK PACKAGED COMPRESSED AIR TREATMENT SYSTEM MODEL: DPP-50 READ ALL INFORMATION IN THIS MANUAL BEFORE INSTALLING OR OPERATING THE DRYER SYSTEM. BEFORE STARTING MAINTENANCE PROCEDURES, COMPLETELY DEPRESSURIZE THE UNIT TO PREVENT PERSONAL INJURY. DO NOT REMOVE, REPAIR, OR REPLACE ANY ITEM ON THIS DRYER SYSTEM WHILE IT IS PRESSURIZED. NEVER OPERATE THIS DRYER SYSTEM ABOVE THE RATED OPERATING CONDITIONS. OPERATION ABOVE SPECIFIED CONDITIONS WILL RESULT IN DECREASED PERFORMANCE, POSSIBLE DAMAGE TO THE UNIT AND/OR PERSONAL INJURY. www.vanairsystems.com PAGE
SECTION : HANDLING. HANDLING INSTRUCTIONS DO NOT LIFT THE DRYER SYSTEM BY THE PIPING, PRE- COOLER OR PRECOOLER SUPPORT BARS. THESE COMPO- NENTS ARE NOT DESIGNED TO HOLD THE WEIGHT OF THE DRYER. PERSONAL INJURY AND/OR EQUIPMENT DAMAGE MAY RESULT. Lift the dryer system by the lifting lug on the dryer vessel or by the base using a fork lift truck. If the unit is to be lifted by an overhead device, attach the lifting chains or cables to the vessel lifting lug. Make sure that the chains or cables are clear of all piping and dryer components. If outside storage is required, the unit MUST BE adequately covered to prevent rain or snow from accumulating on the dryer system. The unit must be placed on a paved surface to keep it out of standing water and mud..3 EQUIPMENT CHECK Inspect the dryer system for any damage that may have occurred during shipment. Inspect all fittings, piping connections, fasteners, etc. for loose connections. IF DRYER SYSTEM WAS DAMAGED DURING SHIPMENT: () NOTIFY CARRIER IMMEDIATELY AND FILE A CLAIM. (2) CONSULT FACTORY BEFORE OPERATING THE DRYER SYSTEM..2 STORAGE INSTRUCTIONS If the unit is to be placed in storage before it is installed, it should be stored indoors and covered with a tarpaulin to keep it clean. The location should be free from corrosive gasses and extreme humidity, which can cause damage to the unit. SECTION 2: SAFETY 2. HANDLING DO NOT LIFT THE DRYER SYSTEM BY THE PIPING, PRECOOLER OR PRECOOLER SUPPORT BARS. THESE COMPONENTS ARE NOT DESIGNED TO HOLD THE WEIGHT OF THE DRYER SYSTEM. PERSONAL INJURY AND/OR EQUIP- MENT DAMAGE MAY RESULT. LIFT THE DRYER SYSTEM BY THE LIFTING LUG ON THE DRY- ER VESSEL OR BY THE BASE USING A FORK LIFT TRUCK. MAKE SURE THAT ALL LIFTING EQUIPMENT IS CAPABLE OF SUPPORTING THE WEIGHT OF THE DRYER SYSTEM. 2.2 INSTALLATION THIS ASME CODE VESSEL MUST BE PROTECTED BY A PRESSURE RELIEF VALVE. Refer to OSHA 90.69 Par. b, Sub. Par (3) and ASME Boiler and Pressure Vessel Code, Section VIII, Division, UG-25 through UG-36. Also comply with all state and local codes. WHEN INSTALLING AND OPERATING THIS EQUIPMENT, COMPLY WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL CODES. ALWAYS WEAR EYE PROTECTION, GLOVES AND A RESPIRATORY PROTECTIVE DEVICE WHEN HANDLING THE DESICCANT. DESICCANT DUST MAY CAUSE EYE AND SKIN IRRITATION. AVOID BREATHING THE DUST AND PROLONGED CONTACT WITH THE SKIN. FIRST AID IN CASE OF EYE CONTACT WITH DESICCANT DUST; IMMEDIATELY FLUSH THE EYES WITH PLENTY OF WATER FOR AT LEAST 5 MINUTES. CONSULT A PHYSICIAN. 2.3 OPERATION DO NOT OPERATE DRYER SYSTEM IF THE VESSEL IS LEAKING. IMMEDIATELY TAKE THE DRYER SYSTEM OUT OF SERVICE. DO NOT OPERATE DRYER SYSTEM IF THE PRECOOLER CORE, OR OTHER COMPONENTS ARE LEAKING. IMMEDIATELY TAKE THE DRYER SYSTEM OUT OF SERVICE AND FIX OR REPLACE THE LEAKING COMPONENT. ANY DAMAGE TO THE VESSEL CAN MAKE IT UNSAFE TO USE. INSPECT OUTSIDE AND INSIDE OF THE VESSEL REGU- LARLY FOR CORROSION AND ANY DAMAGE (I.E., DENTS, GOUGES OR BULGES). IF DAMAGED, TAKE OUT OF SERVICE IMMEDIATELY. DURING NORMAL OPERATION, THE INLET PIPING MAY REACH TEMPERATURES OF 50 F. CONTACT WITH THE PIPING MAY RESULT IN SERIOUS PERSONAL INJURY. DO NOT OPERATE THIS DRYER SYSTEM ABOVE THE MAXIMUM RATED WORKING PRESSURE. OPERATING CONDITIONS FOR PROPER PERFORMANCE OF THIS DRYER SYSTEM ARE DIFFERENT THAN MAXIMUM OPERATING CONDITIONS FOR THE VESSELS. BE SURE TO CHECK THE DRYER SYSTEM OPERATING CONDITIONS. SEE SECTION 4.. USE THIS DRYER SYSTEM FOR COMPRESSED AIR ONLY. AIR FROM THIS DRYER SYSTEM IS NOT SUITABLE FOR BREATHABLE AIR SYSTEMS WITHOUT FURTHER TREAT- MENT. 2.4 MAINTENANCE DO NOT REMOVE, REPAIR, OR REPLACE ANY ITEM ON THE DRYER SYSTEM WHILE IT IS PRESSURIZED. DEPRESSURIZE THE DRYER SYSTEM COMPLETELY BEFORE STARTING MAINTENANCE PROCEDURES. DO NOT WELD OR GRIND THE VESSEL. IT WILL NOT BE SAFE TO OPERATE. (Note: Any uncertified alteration to the vessels VOIDS the ASME Code Certification and the Warranty.) NEVER REMOVE THE FAN GUARD WHILE THE PRECOOLER IS OPERATING. CONTACT WITH THE ROTATING FAN BLADES MAY RESULT IN SERIOUS PERSONAL INJURY. DO NOT TRY TO TIGHTEN A LEAKING HATCH COVER. IM- MEDIATELY SHUT OFF THE AIR SUPPLY AND DEPRESSURIZE THE SYSTEM. INSTALL A NEW GASKET EVERYTIME THE HATCH COVER IS REMOVED, OR AT LEAST ONCE PER YEAR. INSPECT THE COVER AND SEALING SURFACE FOR DAMAGE SUCH AS CORROSION, CRACKS OR DISTORTION. IF THERE IS ANY DAMAGE, REPLACE COVER. REPLACE THE HATCH COVER EVERY 5 YEARS REGARDLESS OF CONDITION. USE VAN AIR SYSTEMS AUTHORIZED PARTS ONLY. PAGE 2
SECTION 3: DESCRIPTION OF OPERATION A Dry Pak DPP-50 is a skid mounted system consisting of an air-cooled trim cooler, a single tower dryer with a bed of desiccant tablets and an afterfilter. Wet warm air enters the trim cooler where it is cooled to a temperature approaching ambient. Water is condensed out during this cooling process. The saturated air and the liquid water proceed to the inlet of the single tower dryer. The liquid water and any solid particles present are separated by gravity and fall to the dryer sump area. The process air moves upward through the bed of desiccant tablets which attract and absorb moisture from the air before it flows through the dryer outlet. The tablets dissolve gradually as they absorb the moisture. The solution, which consists of dissolved desiccant and water, falls into the sump area at the bottom of the vessel. The dryer must be drained periodically to remove the accumulated solution. A manual ball valve is supplied for this purpose. Likewise, the desiccant in the dryer must be periodically replenished to maintain performance. The afterfilter is supplied to catch any residuals that may work their way downstream. SECTION 4: SPECIFICATIONS 4. INLET CONDITIONS The Dry Pak DPP-50 is rated for 50 SCFM at 00 PSIG, 50 F into the trim cooler (sized for 90 F ambient and 5 approach). Approach temperature will vary with changes to the inlet conditions (flow, pressure, temperature) and the ambient temperature. The dew point out of the dryer tower is directly related to the inlet temperature entering the dryer vessel. The lower the inlet temperature, the lower the dew point of the outlet air. The precooler maximum inlet temperature is 250 F. When using DRY-O-LITE desiccant, the inlet temperature to the dryer tower should not exceed 00 F. 4.2 MAXIMUM CAPACITIES FOR DRYER - SCFM (Nm 3 /hr) MODEL DPP-50 MAXIMUM WORKING PRESSURE 250 PSIG 7.3 Bar 60 PSIG 4. Bar 98 58 80 PSIG 5.5 Bar 24 99 00 PSIG 6.9 Bar 50 24 25 PSIG 8.6 Bar 83 294 50 PSIG 0.3 Bar 25 346 75 PSIG 2. Bar Cooler is sized for 50 F inlet, 90 F ambient and 5 F approach for flow shown at 00 PSIG. 248 399 200 PSIG 3.8 Bar 28 452 250 PSIG 7.3 Bar 346 556 4.3 DIMENSIONS MODEL DPP-50 REGULATOR SETTING FOR AIR MOTOR 20 PSIG FOR 3000 RPM PAGE 3
SECTION 5: ACCESSORIES 5. PRESSURE RELIEF VALVE A relief valve connection was provided on the dryer vessel. A pressure relief valve should be installed to conform to OSHA safety standards. Refer to OSHA Standard Section 90.69, Paragraph b, Subparagraph 3 and the ASME Boiler and Pressure Vessel Code, Section VIII, Division, UG-25 through UG-36. Also comply with all other federal, state or local codes concerning pressure vessels. Reference Section 9 for the available relief valve part number. 5.2 GAUGE KIT A connection for a combination pressure and temperature gauge was provided on the dryer vessel. Reference Section 9 for the available combination gauge part number. SECTION 6: OPERATION 6. DESICCANT INSTALLATION IMPORTANT The Dry Pak DPP-50 is shipped WITHOUT the desiccant installed. The desiccant MUST BE INSTALLED before using the system. THE USE OF CHEMICALS OTHER THAN VAN AIR SYSTEMS DESICCANT WILL VOID THE WARRANTY ON THE DRYER. See SECTION 7.6 for procedure for filling the dryer with desiccant. 6.2 LUBRICATOR OIL Check oil level in lubricator regularly and add oil as required. Verify that the lubricator is set as indicated in the chart below. MODEL DPP-50 LUBRICATOR SETTING DROP / MIN 6.3 START UP PROCEDURES SLOWLY pressurize the air system. Allow some air to bleed through the manual drain valve. Once the system starts to pressurize, the manual drain valve can be closed. The Dry Pak.5 is now in operation. CAUTION Make sure that the Dry Pak DPP-50 is not subjected to sudden flow surges. Always open the valves slowly to permit gradual equalization of pressure between the Dry Pak DPP-50 and the air supply lines. Verify that regulator pressure is set as shown on page 3 of this manual to maintain 3000 rpm fan speed to ensure proper precooler performance. 6.4 OPERATION The simple design of the single tower dryer allows for easy operation. The dryer requires two procedures to ensure peak performance. 6.4-A DAILY DRAINING The accumulated desiccant and water solution in the bottom of the dryer should be drained frequently. With a manual drain valve installed on the dryer, it must be opened at least once every 4 to 8 hours to drain the dryer. The dryer may require draining on a more frequent basis on humid days. CAUTION If the dryer is not drained regularly, it may become flooded and the accumulated liquid may enter the air system and cause damage to downstream equipment. 6.4-B REFILLING THE DRYER WITH DESICCANT During the drying process, the desiccant tablets dissolve slowly. The desiccant consumption rate is dependent on several factors, such as inlet temperature, flow and pressure. To check the level of the desiccant bed, look into one of the sight windows. If light can be seen through the opposite sight window, the desiccant supply must be replenished to ensure dryer performance. Reference SECTION 7.6 for refilling instructions and estimated consumption rates. IMPORTANT The use of other than Van Air Systems desiccant will void the warranty on the Dry Pak DPP-50. PAGE 4
SECTION 7: MAINTENANCE 7. DRAIN VESSEL DAILY Drain the vessel by opening the drain valve and allowing the solution to discharge; then close the drain valve completely. The accumulated solution must be drained after every 4 to 8 hours of operation. IMPORTANT The drain solution may contain lubricants. Comply with all applicable regulations concerning the disposal of these chemicals. 7.2 CHECK DESICCANT LEVEL BEFORE OPERATION Look into one of the sight windows. If light can be seen through the opposite sight window, the desiccant supply must be replenished to ensure dryer performance. IF THE SIGHT WINDOWS ARE DAMAGED IN ANY WAY, THEY MUST BE REPLACED IMMEDIATELY WITH VAN AIR SYSTEMS PART NO. 26-004 ONLY. Check the operation of all equipment installed before and after the Dry Pak DPP-50. Inspect the hatch cover for signs of corrosion and/or leaks. Replace the cover and/or gasket as necessary. 7.3 CHECK OIL LEVEL IN LUBRICATOR Verify that there is sufficient amount of oil in the lubricator and add oil as needed. See SECTION 9 for oil part number. 7.4 CHECK FILTER ELEMENT IN AFTERFILTER The afterfilter is supplied with a differential pressure indicator. Check the indicator and replace element as needed. See SECTION 9 for filter element part number. 7.5 CLEAN PRECOOLER CORE The core should be cleaned regularly. Accumulation of dirt or other contaminants such as oils will greatly reduce the efficiency of the precooler. Normal accumulation of dirt can be removed by blowing the core off with compressed air. If the core becomes contaminated with oil-laden particles, it can be steam cleaned. Clean with extreme care as the aluminum fins can be easily damaged. 7.6 ADDING DESICCANT Shut down the air system and open the drain valve to allow the dryer to depressurize completely. Loosen the nut on the hatch cover. Push on the hatch cover. If the vessel is depressurized, the cover will unseal. Once the seal is broken, tilt the hatch cover and remove it from the dryer. Add the amount of desiccant tablets required to raise the supply to the maximum operating level; then level off the tablet bed. CAUTION Make sure the desiccant level is below the screen on the outlet pipe. Do NOT overfill the vessel. Adequate space must be left to allow the hatch cover to be installed. Inspect the hatch cover and sealing surface. If there is any damage, replace the cover. Replace the cover every 5 years regardless of condition. The gasket should be replaced every time the hatch cover is removed or at least once a year. Check the sealing surface of the opening. If it is contaminated with dirt or rust, it must be cleaned before installing the hatch cover. A contaminated surface may prevent the gasket from properly sealing. Install the filler hatch cover and a new gasket. Tighten the nut on the hatch cover until it is snug. Overtightening will cause damage to the nut. The cover will seal when the vessel is pressurized. Start up the dryer following the procedures in SECTION 6.3. 7.7 ESTIMATING DESICCANT USAGE The ANNUAL DESICCANT CONSUMPTION RATE table is a guide to estimate the desiccant usage for your installation. The consumption rate is an approximation of how much desiccant will be added over a period of one year. The figure is an average and may vary depending upon your actual conditions (i.e. 24 hour operation, higher inlet temperature, excessive liquid water content, contaminants etc.) The desiccant bed level should be maintained to at least the sight window level at all times to ensure optimum drying capabilities. To use the chart, first determine the SCFM that is being processed through the Dry Pak DPP-50. Then locate the nearest flow rate listed on the chart and interpolate as needed. (This chart is based on shift for a one year period (2,000 hours)@ 00 PSIG inlet pressure and 75 o F inlet temperature into dryer vessel, 00% RH.) The consumption rate is proportional to the moisture loading. Each 20 o F increase in inlet temperature changes the moisture loading by a factor of nearly 2:. For special applications requiring desiccants other than DRY-O- LITE, consult factory. FLOW SCFM 50 00 50 DRY-O-LITE LBS/YEAR 66 32 98 Amount of desiccant required to fill from sight window to maximum fill level: MODEL DPP-50 DRY-O-LITE 68 lb. PAGE 5
SECTION 8: SHUT DOWN & PREPARATION FOR STORAGE 8. SHUTDOWN Turn off air supply to Dry Pak DPP-50. Open afterfilter drain valve and depressurize the system completely. 8.2 PREPARATION FOR STORAGE DO NOT ATTEMPT TO REMOVE OR REPAIR ANY PART OF THE SYSTEM UNTIL IT IS COMPLETELY DEPRESSURIZED. SERIOUS PERSONAL INJURY MAY RESULT IF THIS SAFETY RULE IS NOT FOLLOWED. INSPECT VESSEL, INSIDE AND OUT, REGULARLY FOR BULGES, CORROSION, DENTS, GOUGES OR LEAKS. IF DAMAGED, REMOVE FROM SERVICE IMMEDIATELY AND NOTIFY YOUR CERTIFYING AUTHORITY. The air motor needs to be flushed to remove excessive dirt, foreign particles, moisture and/or oil that accumulates in the air motor during normal operation. Flushing helps to maintain proper motor performance and extends service life. Perform flushing procedure when the Dry Pak DPP-50 is to be idle for more than 5 days, or if it is to be placed in storage. Use only Van Air Systems Flushing Solvent (p/n 26-757). DO NOT use kerosene or ANY other combustible solvents to flush the air motor. 4. Rotate motor shaft/fan, by hand, for one minute in each direction. 5. Re-install the tubing and cover the exhaust port with a cloth. 6. You must wear eye protection for this step. Restart the motor at a low pressure (approximately 0 PSIG) and run it until there is no trace of solvent in the exhaust air. 7. Listen for changes in the sound of the motor. If the motor sounds smooth, the Blast Pak is ready for storage. If the motor does not sound like it is running smooth it will need to be serviced. 8. Disassemble the exhaust muffler that was removed in step 2. Clean the felt and reassemble the exhaust muffler. 9. Install the exhaust muffler on the air motor. 0. Set the regulator for the air motor, per the chart on page 3. 8.3 STORAGE Store the Dry Pak in a location that is free from extreme humidity and corrosive gasses, which can damage the unit. If long term storage is required, cover the inlet and outlet air connections to prevent the accumulation of dirt and debris on the piping. FLUSHING PROCEDURE. Remove air supply tubing from air motor. 2. Remove exhaust muffler from air motor. 3. Spray flushing solvent (Van Air Systems p/n 26-757) through tubing fitting into air motor intake port for 5 to 0 seconds. PAGE 6
SECTION 9: PARTS 9. DRYER SYSTEM REPLACEMENT PARTS DESCRIPTION Gasket for 3"x4" Hatch Cover Hatch Cover, 3" x 4" Sight Window Manual Drain Valve " NPT Air Motor Shutoff Valve 3/8" NPT Precooler with Air Motor Air Motor for Precooler Rebuild Kit for Air Motor Muffler for Air Motor Fan for Precooler Regulator-Lubricator Oil for Lubricator (Quart) Flushing Solvent for Air Motor (4 ounces) Element for Afterfilter E200-265-B/RB PART NO. 8-039 46-3002 26-004 4-045 4-2795 34-0954 26-6277 26-7687 26-730 26-7480 26-7795 26-7032 26-757 26-2075 QTY 2 DESICCANT DRY-O-LITE Desiccant, 50 LB BAG 33-03 3 ACCESSORIES Relief Valve Combination Pressure/Temperature Gauge 4-462 29-0405 9.2 HOW TO ORDER PARTS To order parts contact your local VAN AIR SYSTEMS representative, the representative that sold the dryer, or the factory. When contacting your local VAN AIR SYSTEMS representative or the factory, the following information is necessary: Dryer model Dryer serial number Dryer part number This information can be found on the dryer data tag or system info located on the data tag on the skid. The Service Department can be reached by calling 888-606-9303 or faxing 84-774-3482. Hours are 8:00 AM EST to 5:00 PM EST, M-F. SECTION 0: WARRANTY 0. WARRANTY Per Van Air Systems terms and conditions of sale. SECTION : APPENDIX. APPENDIX - F200 Filter Series IOM PAGE 7
SAFETY PRECAUTIONS Safety is everybody's business and is based on your use of good common sense. All situations or circumstances cannot always be predicted and covered by established rules. Therefore, use your past experience, watch out for safety hazards and be cautious. DANGER DANGER DISCHARGE AIR USED FOR BREATHING WILL CAUSE SEVERE INJURY OR DEATH. CONSULT FILTRATION SPECIALIST FOR ADDITIONAL FILTRATION AND TREATMENT EQUIPMENT TO MEET HEALTH AND SAFETY REGULATIONS. AIR AND OIL UNDER PRESSURE WILL CAUSE SEVERE PERSONAL INJURY OR DEATH. SHUT DOWN COMPRESSOR AND RELIEVE SYSTEM OF ALL PRESSURE BEFORE REMOVING VALVES, CAPS, PLUGS, FITTINGS, BOLTS AND FILTERS. ELECTRICAL SHOCK FROM IMPROPER GROUNDING CAN CAUSE INJURY OR DEATH. GROUND UNIT AND RELATED EQUIPMENT ACCORDING TO NATIONAL ELECTRICAL CODE AND LOCAL REGULATIONS. READ THE OPERATOR'S MANUAL BEFORE STARTING OR SERVICING THIS UNIT. FAILURE TO ADHERE TO INSTRUCTIONS CAN RESULT IN SEVERE PERSONAL INJURY OR DEATH. REPLACEMENT MANUALS CAN BE PURCHASED BY CONTACTING THE MANUFACTURER. January 207 80-572 Rev - 2950 Mechanic Street Lake City, PA 6423 USA Phone: -800-840-9906 Fax: 84-774-0778 Email: info@vanairsystems.com www.vanairsystems.com PAGE 8