Graco 309921N User's Manual
Contents
1. Compressor Main Air Line Size Capacity Length Size 1 1 2 2 HP 6 9 CFM any 3 4 in 19 mm 3 5HP 12 20 CFM Up to 200 ft 61 m 3 4 in 19 mm Over 200 ft 61 m 1 in 25 4 mm 5 10HP 20 40 CFM Up to 100 ft 30 5 3 4 in 19 mm Over 100 200 ft 30 5 61 m 1 in 25 4 mm Over 200 ft 61 m 1 1 4 in 81 8 mm 10 15 HP 40 60 CFM Up to 100 ft 30 5 3 4 in 19 mm Over 100 200ft 30 5 61 m 1 1 4 in 31 8 Over 200 ft 61 m 1 1 2 in 38 1 Air Pressure Drop Through Hose by hose length and ID psi Kpa bar Air Hose Inside 4 ft 10 ft 15 ft 20 ft 25 ft 50 ft Diameter 1 22 m 3 05 m 4 6 m 6 1 m 7 62 m 15 24 m 1 4 in 6 4 mm 40 psi 276 kPa 2 8 bar 6 41 4 8 55 6 9 5 66 7 11 76 8 12 75 88 0 9 24 165 1 7 50 psi 345 kPa 3 4 bar 7 5 52 5 10 69 7 12 83 8 14 97 1 16 110 1 1 28 193 1 9 60 psi 414 kPa 4 1 bar 9 62 6 12 5 86 9 14 5 100 1 16 75 115 1 2 19 131 1 3 34 214 2 1 70 psi 483 kPa 4 8 bar 10 75 74 7 14 5 100 1 17 117 1 2 19 5 134 1 3 22 5 155 1 6 34 234 2 3 80 psi 552 kPa 5 5 bar 12 25 84 8 16 5 114 1 1 19 5 134 1 3 22 5 155 1 6 25 5 176 1 8 37 255 2 6 90 psi 621 kPa 6 2 bar 14 97 1 18 75 129 1 3 22 152 1 5 25 25 172 1 7 29 200 2 39 5 169 2 7 5 16 in 7 9 mm 40 psi 276 kPa 2 8 bar 2 22. 2 Attach air hose to inlet elbow fitting C19024 3 Open main shut off valve 288798 4 Turn off unit when not in use Follow Pressure Relief Procedure page 8 Automatic Drain The automatic drain is equipped with a float actuated device which automatically ejects liquid contaminates under pressure Coalescer Pressure Drop Indicator The differential pressure drop indicator provides early detection of a clogged coalescing filter element As the filter element becomes clogged the red indicator starts to rise while air is flowing through the unit When the pressure drop across the element reaches 10 12 psi 69 83 kPa 0 7 0 8 bar the red indicator will be in full view and the element should be replaced Failure to replace the element when the pressure drop exceeds 10 psi 69 kPa 0 7 bar will affect your air quality and tool efficiency 309921N 288798 Model 234401 288789 234402 234397 234404 288787 ti22156a Part No Description 234402 Air Filter with auto drain see Manual 309919 for parts information 234397 Coalescer with auto drain see Manual 309919 for parts information 234404 Desiccant Housing 288787 Air Regulator self relieving 288789 Nipple with screen 288798 Shut off Valve 289165 Regulator Outlet Valve 309921N Operation Model 24M178 C19024 Pa 288798 Part No 234402 234397 234404 288789 288798 C19024 120375 288789 120375 234404 ti22157a Description
3. Air Filter with auto drain see Manual 309919 for parts information Coalescer with auto drain see Manual 309919 for parts information Desiccant Housing Nipple with screen Shut off Valve Elbow Fitting Elbow Fitting Maintenance and Repair Pressure Relief Procedure To avoid injury relieve air and fluid pressure before checking cleaning or repairing the equipment The following is a basic pressure relief procedure Be sure to follow the specific pressure relief procedure in your spray gun and or fluid supply equipment manuals 1 Close the main air shut off valve 2 Trigger the gun or dispense valve and open any drain valves to relieve pressure Maintenance and Repair N e Check system at least once per shift to ensure proper drainage Relieve the pressure before cleaning checking or repairing Follow Pressure Relief Proce dure above e A supply of low flow low humidity air will pro vide longer desiccant life Air Filter 234402 Series B To maintain maximum filtering efficiency and avoid excessive pressure drop the filter must be kept clean See Manual 309919 for cleaning and parts information Coalescer 234397 Series B NOTE It is recommended that Air Filter 234402 be installed upstream of the coalescing filter to remove 3 micron and larger size particles and sep arate large droplets of moisture from the air line CAUTION Never let the liquid level in the bowl reach the base o
4. 6 Reassemble parts and screw them into the regula tor before tightening the bottom plug Make sure the valve diaphragm and spring are center aligned Air Regulator Assembly for Desiccant Air Drying System 289340 289149 LA 288797 289165 10 Screws 6 Part No 289340 289149 288796 289190 289191 288797 289165 288796 Diaphragm Valve 289191 spring Bottom Plug Description Air Pressure Gauge Plug Diaphragm Valve Repair Kit T handle Adjusting Screw Spring Nipple 3 8 in x 3 8 in Shut off Valve 309921N Maintenance and Repair 309921N 11 Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use With the exception of any special extended or limited warranty published by Graco Graco will for a period of twelve months from the date of sale repair or replace any part of the equipment determined by Graco to be defective This warranty applies only when the equipment is installed operated and maintained in accordance with Graco s written recommendations This warranty does not cover and Graco shall not be liable for general wear and tear or any malfunction damage or wear caused by faulty installation misapplication abrasi
5. of the bowl c Turn the flow tube hand tight counter clock wise to remove it then replace elements d Reassemble in reverse order 309921N Maintenance and Repair 5 Refill bowl with new or regenerated desiccant See Desiccant Changeout Desiccant Housing 234404 holds 5 lb of desiccant 6 Reassemble bowl to cover making sure that o ring 289186 is in place in cover mil 289189 288794 289186 i 288793 ca I ai lil 288795 ni a rt 289187 2 289188 3 ee iml Part No Description 288793 Flow Tube Assy includes flow tube nut o ring filter elements and retainers 289186 O Ring 288794 Gasket 289189 O Ring 289187 Filter Element 289188 O Ring 288795 Sight Glass 288810 Desiccant silica gel 5 Ib 288823 Desiccant silica gel four 5 lb cans Maintenance and Repair Self Relieving Air Regulator 288787 Be sure air to the regulator is clean Erratic operation or loss of regulation is usually caused by dirt in the regula tor Cleaning 1 Follow the Pressure Relief Procedure page 8 2 Remove bottom plug spring and valve 3 Remove six screws and separate regulator body 4 Clean all parts with denatured alcohol Wipe off seat and blow out body 5 Inspect parts for damage and replace as needed To replace the valve and diaphragm order Repair Kit 288796
6. prevents desiccant from going down tube when refilled 288810 Blue silica gel desiccant beads turn pink when saturated Element prevents any desiccant dust from traveling downstream Built in sight glass allows easy monitoring of desiccant color change When air is compressed the temperature of the air increases as does its capacity to hold moisture As the hot moist air travels down through the lines it cools allowing the moisture to condense Filters drain traps and driplegs only remove liquid condensation The Dryaire Desiccant Air Drying System removes liquid condensation residual water vapor and aerosols As the wet compressed air flows through the inlet port and down the bed of desiccant the desiccant beads absorb the water vapor and aerosols and can reduce the air humidity down to a 40 F 40 C pressure dew point After the moisture has been removed the dry air passes through an element up the center tube and out the out let port As long as the desiccant is replaced at satura tion point and your compressed air is not exposed to a temperature below the dew point your equipment will receive dry moisture free air As the desiccant becomes saturated with moisture the dew point begins to rise This is evident when the desic cant changes color from blue to pink indicating the need for desiccant replacement Refer to Desiccant Change out page 9 309921N Installation Before installing air line com
7. 5 16 2 2 75 19 2 3 25 22 2 3 5 24 2 4 28 3 8 5 59 6 50 psi 345 kPa 3 4 bar 3 21 2 3 5 24 2 4 28 3 4 5 31 3 5 34 3 10 69 7 60 psi 414 kPa 4 1 bar 3 75 26 3 4 5 31 3 5 34 3 5 5 38 4 6 41 4 11 5 79 8 70 psi 483 kPa 4 8 bar 4 5 31 3 5 25 36 4 6 41 4 6 75 47 5 7 25 50 5 13 90 9 80 psi 552 kPa 5 5 bar 5 5 38 4 6 25 43 4 7 48 5 8 55 6 8 75 60 6 14 5 100 1 90 psi 621 kPa 6 2 bar 6 5 45 4 7 5 52 5 8 5 59 6 9 5 66 7 10 5 72 7 16 110 1 1 E 309921N Installation 309921N 5 Operation Operation Do not exceed the Maximum Incoming Air Pressure of the equipment Over pressurizing can cause component rupture and serious injury Model 234401 Series D 1 Attachairhose s to air regulator outlet valve 289165 2 Attach air hose to main shut off valve 288798 3 Open main shut off valve 288798 4 Turn the T hand adjusting screw in or out to adjust regulator to desired setting 5 Open outlet valve 289165 to supply air to spray guns or tool 6 With air flowing readjust air pressure regulator if necessary 7 Turn off unit when not in use Follow Pressure Relief Procedure page 8 Model 24M178 Series B 1 Attach air hose s to outlet elbow fitting 120375
8. Instructions Parts List Desiccant Air Drying System Model 234401 Series D Maximum Operating Pressure 160 psi 1 1 MPa 11 bar Maximum Temperature 150 F 65 C Model 24M178 Series B Maximum Operating Pressure 175 psi 1 2 MPa 12 bar Maximum Temperature 150 F 65 C Important Safety Instructions Read all warnings and instructions in this manual Save these instructions 7 GRACO 309921N EN Model 234401 shown 21558 Includes Air Flow Capacity Air CFM Air Inlet Outlet at 100 psi Maximum Operating Part No Series Description npt f npt f 0 7 MPa 7 bar Pressure psi MPa bar 234402 B Stage 1 Air Filter with automatic 1 2 in 1 2 in 100 175 1 2 12 drain Removes water and con taminants down to 3 microns 234397 B Stage 2 Coalescer with auto 1 2 in 1 2 in 83 175 1 2 12 matic drain Removes oil and sub micronic particles down to 1 micron 234404 B Stage 3 Desiccant Housing 3 4 in 3 4in 30 175 1 2 12 Removes uncondensed moisture reduced reduced to 1 2 in to 3 8 in 288787 A Self Relieving Air Regulator 3 8in 1 4in 100 160 1 1 11 288810 Silica Gel Desiccant 5 Ib can 288798 A Shut off Valve gt PROVEN QUALITY LEADING TECHNOLOGY How Desiccant Air Drying System Works How Desiccant Air Drying System Works E YN Quick remove i flange Built in screen
9. f the coalescing element See Manual 309919 for operation cleaning and parts information 309921N Desiccant Housing 234404 Series B NOTE Always install a moisture filter to remove bulk fluids and a coalescing filter to remove oil upstream of the desiccant housing Desiccant coated with oil will not absorb moisture Desiccant Changeout NOTE Desiccant beads are non toxic and N non flammable The desiccant gradually changes color from blue to pink indicating it has absorbed moisture to the saturation point and needs to be regenerated or replaced e To regenerate Silica Gel desiccant heat desiccant for 4 hours at 275 F 135 C e To replace desiccant order desired part no from the following chart Color Color when Desiccant Part No when fresh saturated 288810 Silica Gel 5 Ib Blue Pink 288823 Silica Gel four 5 Ib cans Blue Pink Desiccant Housing Disassembly 1 Follow the Pressure Relief Procedure page 8 2 Unscrew the metal collar holding the desiccant bowl to cover Remove bowl and collar 3 Dump old desiccant out of bowl 4 Ifthe pressure drop across the dryer has become unacceptable the bronze element in the bottom of the bowl may be clogged To remove clog a Place a blow gun at the top of the tube and blow air through the flow tube b If element replacement is needed disassemble flow tube from the bowl by removing the end cap and nut from the bottom
10. on corrosion inadequate or improper maintenance negligence accident tampering or substitution of non Graco component parts Nor shall Graco be liable for malfunction damage or wear caused by the incompatibility of Graco equipment with structures accessories equipment or materials not supplied by Graco or the improper design manufacture installation operation or maintenance of structures accessories equipment or materials not supplied by Graco This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of the claimed defect If the claimed defect is verified Graco will repair or replace free of charge any defective parts The equipment will be returned to the original purchaser transportation prepaid If inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE Graco s sole obligation and buyer s sole remedy for any breach of warranty shall be as set forth above The buyer agrees that no other remedy including but not limited to incidental or consequential damages for lost profits lost sales injury to person or proper
11. ponents blow out the pipe line to remove debris Be sure air to the regula tor is clean Erratic operation or loss of regulation is usually caused by dirt in the regulator Install the Air Drying System as close as possible to the equipment it serves Use template 289185 pro vided to position system Shop Air Piping Layout 3 4 in 19 mm minimum 2 1 1 4 in 32 mm optimum a _ r h Flexible hose L tte between compressor and stand pipe SI d Main Air Line Od Coalescer al Main Air ign O a n xi MB Shut off Valve a na a 309921N Air Control unit or Air Filter Installation Install air shut off valve 288798 upstream from the air system to isolate it for service Install system so air flows through filters in the direc tion noted on top of filter A minimum 1 2 in npt piping is recommended Avoid using too many fittings couplings etc which will restrict air flow Membrane air Ball Valve drying system alo __ nea O EZA e OR Desiccant air drying system ia lt _ lt iii a a l lt r Drain Val r rain Valve pe r os aS Pai pe r a Lai La Main Air Line stand pipe should not be smaller than compressor outlet size A minimum of 25 ft 7 62 m from compressor to first filter outlet is required to cool air 50 ft 15 24 m optimum Installation Minimum Pipe Size Recommendations
12. ty or any other incidental or consequential loss shall be available Any action for breach of warranty must be brought within two 2 years of the date of sale GRACO MAKES NO WARRANTY AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES EQUIPMENT MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO These items sold but not manufactured by Graco such as electric motors switches hose etc are subject to the warranty if any of their manufacturer Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties In no event will Graco be liable for indirect incidental special or consequential damages resulting from Graco supplying equipment hereunder or the furnishing performance or use of any products or other goods sold hereto whether due to a breach of contract breach of warranty the negligence of Graco or otherwise FOR GRACO CANADA CUSTOMERS The Parties acknowledge that they have required that the present document as well as all documents notices and legal proceedings entered into given or instituted pursuant hereto or relating directly or indirectly hereto be drawn up in English Les parties reconnaissent avoir convenu que la r daction du pr sente document sera en Anglais ainsi que tous documents avis et proc dures judiciaires ex cut s donn s ou intent s a la suite de ou en rapport directement o
13. u indirectement avec les proc dures concern es Graco Phone Numbers For the latest information about Graco products visit www graco com For patent information see www graco com patents TO PLACE AN ORDER contact your Graco distributor or call to identify the nearest distributor Phone 612 623 6921 or Toll Free 1 800 328 0211 Fax 612 378 3505 All written and visual data contained in this document reflects the latest product information available at the time of publication Graco reserves the right to make changes at any time without notice Original instructions This manual contains English MM 309921 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC AND SUBSIDIARIES P O BOX 1441 MINNEAPOLIS MN 55440 1441 USA Copyright 2003 Graco Inc All Graco manufacturing locations are registered to ISO 9001 www graco com Revision N October 2013
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