OWNERS MANUAL Form: F-0072 Heatless Desiccant Air Dryer HEATLESS DESICCANT AIR DRYER MODELS RH203-RH224 ARROW PNEUMATICS
Table of Contents Unpacking/Application/Analysis 3 Specifications 4 Dimensional Drawings Installation /Touch 5-6 Pad Control Panel Installation/Start-up Dryer 8 Operation Optional 9-10 Equipment 11-12 Maintenance Maintenance/ Trouble 13-14 Trouble Shooting Warranty 2 Shooting Guide Drawings Replacement 7 Guide 15 16 17 Parts 18-19 20
Unpacking/Application/Analysis READ CAREFULLY BEFORE ATTEMPTING TO INSTALL, OPERATE OR MAINTAIN YOUR DRYER. PROTECT YOURSELF AND OTHERS BY OBSERVING ALL SAFETY INFORMATION. FAILURE TO DO SO COULD RESULT IN PERSONAL INJURY AND/OR PROPERTY DAMAGE. KEEP OWNER’S MANUAL FOR FUTURE REFERENCE. UNPACKING ARROW REGENERATIVE AIR DRYERS ARE SHIPPED AS COMPLETELY ASSEMBLED PACKAGES FILLED WITH DESICCANT READY TO INSTALL. VISUALLY CHECK THE DRYER FOR DAMAGE THAT MAY HAVE OCCURRED IN TRANSIT.
Specifications SPECIFICATIONS Drying Model Capacity Pipe Size Height No.
Dimensional Drawing DIMENSIONED IN INCHES MODEL NO. A B C D E F G H J K L M 203 39.37 6.42 31.79 0.75 29.70 31.20 15.00 18.00 1.50 0.5625 15.60 3.90 204 57.37 8.41 47.81 1.25 35.75 39.00 21.00 24.00 1.50 0.5625 19.50 3.92 209 72.78 9.73 61.32 1.25 42.25 44.75 30.00 36.00 3.00 0.8125 22.375 5.59 210 72.78 9.73 61.32 1.25 42.25 44.75 30.00 36.00 3.00 0.8125 22.375 5.59 211 69.77 9.65 57.95 1.25 48.75 51.25 30.00 36.00 3.00 0.8125 22.125 6.46 212 69.77 9.65 57.95 1.25 48.75 51.25 30.00 36.00 3.00 0.
Dimensional RH218 102.90 7.55 99.16 1.25 68.00 70.50 42.00 48.00 3.00 0.8125 35.25 0.8750 A B C D E F G H J K L M 6 RH219 102.90 7.55 99.16 1.25 68.00 70.50 42.00 48.00 3.00 0.8125 35.25 0.8750 RH220 112.41 8.05 108.65 1.25 80.00 82.50 54.00 60.00 3.00 0.8125 41.25 0.8750 MODEL NUMBER RH221 112.41 8.05 108.65 1.25 80.00 82.50 54.00 60.00 3.00 0.8125 41.25 0.8750 DIMENSIONED IN INCHES DIMENSIONED IN INCHES MODEL NUMBER Drawing A B C D E F G H J K L M RH222 112.41 8.05 108.65 1.25 80.00 82.50 54.
Installation MOUNTING SPECIFICATIONS AND DRYER LOCATION 1 Electrical connection must be hard piped with an external fused disconnect switch and proper overload protection. See electrical connection section for connection location. WARNING ARROW DRYERS ARE WIRED FOR HIGH VOLTAGE. ONLY QUALIFIED ELECTRICIANS ARE AUTHORIZED TO SERVICE THIS ELECTRICAL EQUIPMENT 2 3 4 Frame must be suitably grounded. Generally locate your dryer downstream from the air receiver.
Installation/Start-up ELECTRICAL CONNECTION Standard Voltage - 120V/1ph/60Hz All Other Voltages Customer Hook-Up Customer Hook-Up Note: Circuit Board Timer is rated for 120V/1ph/60Hz ONLY START-UP OPERATIONS Touch Pad Control Panel 1. Power On/Off Push Button - Energizes circuit board timer, initiating dryer operation. 2. Power ON LED - Illuminates when dryer is in operation. 3. Failure to Shift Alarm LED - Illuminates when dryer has failed to shift. 4.
Dryer Operation AFTER ALL PIPING AND ELECTRICAL CONNECTIONS ARE MADE, PROCEED AS FOLLOWS: 1 2 SLOWLY PRESSURIZE THE DRYER! When the dryer reaches full operating pressure, check the system for air leaks. Soap test all joints and fittings. To maintain desired dew point, any leaks detected must be fixed, especially those on the outlet side of the dryer. 3 Energize electrical circuit by simply pressing the power on/off button. 4 The Power On LED will be illuminated when the dryer is in operation.
Dryer Operation DRYER OPERATION cont’d Cycle Timing 5 Min 0 Min 10 Min Right Normally Open Inlet Valve 4:15 min. 15 sec. Right Normally Closed Purge Valve Left Normally Open Inlet Valve 5:15 min. 9:15 min. Left Normally Closed Purge Valve Closed Open Moisture Indicator The Moisture Indicator is located in the top center piping. The Moisture indicator is provided to warn operating personnel of dryer malfunction.
Optional Equipment Dewpoint Demand Plus NOTE: At initial startup and during the first six months of continuous dryer operation, the Dew Point Demand Plus logic SHOULD NOT BE ACTIVATED. A conditioning process must occur in new desiccant, this will allow the desiccant to remove its precise water vapor capacity from the airflow. The function of DDP is to conserve energy by eliminating unnecessary dryer cycling, purge air consumption, and compressor power consumption.
Optional Equipment cont’d High Humidity Alarm: This option continuously monitors the outlet air stream for dew point performance. Should the dryer dew point elevate because of malfunctioning system component, overflow condition, oil contamination or desiccant attrition, the High Humidity Alarm LED will be illuminated. Should the light be observed, refer to Troubleshooting Guide. –100˚F Pressure Dew Point: This option lowers the outlet dew point from the standard –40˚F to –100˚ F.
Maintenance WARNING: BEFORE MAINTENANCE OF DRYER ALWAYS SHUT DRYER OFF, DISCONNECT THE ELECTRICAL SUPPLY, AND DEPRESSURIZE THE PNEUMATIC SYSTEM TO AVOID PERSONAL INJURY Prefilters and Afterfilters Note: For maximum filtration efficiency service elements and drains according to manufacturer’s recommended schedule. Solenoid Valves Periodically clean entire solenoid valve block.
Maintenance cont’d WARNING WHEN REPLACING THE PURGE MUFFLERS IT IS RECOMMENDED THE DRYER BE TURNED OFF AND FULLY DEPRESSURIZED. BACKPRESSURE CAUSED BY CLOGGED MUFFLER CAN CAUSE INJURY SHOULD YOU ATTEMPT TO DISASSEMBLE WHILE PRESSURIZED. Purge Muffler At high pressures a clogged muffler could result in a high backpressure and could result in mechanical failure or personal injury. For this reason the purge muffler must be periodically checked for any restrictive debris.
Maintenance/ Trouble Shooting Guide PREVENTATIVE MAINTENANCE SCHEDULE cont’d Daily 1. 2. 3. 4. 5. Check and record inlet pressure, temperature and flow. Verify that it is within specifications. Check tower pressure gauge readings within operating tolerance. Check tower pressure gauges for proper dryer cycling . Verify that pressure in purging tower is 5 PSIG or less. Verify that prefilters and off-line differential pressure is within operating limits. Monthly 1.
Trouble PROBLEM PROBABLE CAUSE Shooting Guide CORRECTIVE ACTION Insufficient purge rate Check purge flow settings. Check purge piping for obstruction. Clogged Purge Muffler Replace Purge Muffler. Inlet air/gas pressure below design condition Check pressure source. Flow rate higher than design condition Check flow rate and causes for increased demand. Inlet temperature above design condition Check aftercooler, clean and service as necessary.
Drawings 17
Replacement M O D E L Part Description RH203 RH206 RH208 RH211 RH213 RH204 RH207 RH209 RH212 RH214 RH205 INLET VALVE REPAIR KIT (INLET VALVE) PURGE VALVE (REPAIR KIT) PURGE VALVE OUTLET CHECK VALVE Parts RH210 126150 126155 126156 126157 126157 126150-RK 126155-RK 126156-RK 126157-RK 126157-RK 126151 126151 126151 126151 126154 126151/54-RK 126151/54-RK 126151/54-RK 126151/54-RK 126151/54-RK 25526 25527 126167 126168 126168 PURGE CHECK VALVE 122028 122091 25526 255
Replacement Parts M O D E L Part Description RH215 RH217 RH216 INLET VALVE REPAIR KIT (INLET VALVE) PURGE VALVE (REPAIR KIT) PURGE VALVE RH218 RH220 RH219 RH221 RH222 RH223 RH224 126862 126862 126227 126227 126227 126201 126862-RK 126862-RK 126227-RK 126227-RK 126227-RK 126201-RK 126154 126161 122136 122136 12775 126776 126151/54-RK 126161-RK 122136-RK 122136-RK 12775-RK 126776-RK OUTLET CHECK VALVE 126859 126859 126228 126228 126228 126166 PURGE CHECK VALVE 2552
Warranty The Arrow Regenerative type compressed air dryer is warranted to be free from defects in material and workmanship, when used under conditions recommended by the manufacturer, for a period of 12 (twelve) months from date of shipment from factory to job site of original owner. Products purchased from warehouse stock are warranted for a period of 12 (twelve) months from date of shipment from that warehouse provided Arrow is furnished full name, address and date of shipment information.
