{"product_id":"castair-aftercooler-option-bundle-aoc1d-duplex-230v-complete-factory-options-package","title":"Castair Aftercooler Option Bundle AOC1D (Duplex) 230V - Complete Factory Options Package","description":"\u003cp\u003eThe \u003cstrong\u003eCastair Aftercooler Option Bundle AOC1D\u003c\/strong\u003e is the \u003cstrong\u003eduplex, 230-volt single-phase\u003c\/strong\u003e version of Cast Air's factory aftercooler options package. A duplex compressor installation runs two compressor units — typically on a shared receiver tank with an alternator relay that staggers their operation, so one runs lead and the other runs lag, switching off over time to equalize wear. The aftercooler for a duplex system has to be sized and configured for the combined discharge from both compressors — using a simplex aftercooler bundle (AOC1) on a duplex installation means the heat exchanger is undersized for actual airflow at peak demand, which degrades performance exactly when you need it most. The AOC1D is built for this configuration.\u003c\/p\u003e\n\n\u003cp\u003eLike all Castair aftercoolers, the AOC1D cools compressed air discharge to within 15°F of ambient temperature before it enters the receiver tank. At full cooling, approximately 65% of the water vapor in the compressed air condenses and drains out at the aftercooler — not in the tank, not in the piping, and not in your tools or spray equipment. For a duplex system running at the kind of sustained duty cycle that justifies two compressors, this moisture removal at the source is essential to keeping downstream equipment working correctly.\u003c\/p\u003e\n\n\u003ch2\u003eDuplex Compressor Systems: Why Configuration-Matched Aftercooling Matters\u003c\/h2\u003e\n\u003cp\u003eA duplex system is not just two compressors sitting next to each other — it is a coordinated system where both machines share a common discharge header and tank. When both compressors are running simultaneously (which happens during high-demand periods), the combined discharge volume into the aftercooler is the sum of both machines' output. If the aftercooler is sized for one compressor, it is receiving twice the airflow it was designed for. The result:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsufficient residence time in the heat exchanger:\u003c\/strong\u003e Air moves through too quickly for the fan to cool it to near-ambient temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigher outlet temperature:\u003c\/strong\u003e Air exits the aftercooler warmer than it should, carrying more moisture than a properly sized unit would remove\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDownstream effects:\u003c\/strong\u003e The refrigerated dryer receives hotter, wetter air than it was designed to handle, its performance degrades, and wet air continues downstream to tools and spray equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AOC1D is matched to the duplex configuration — sized for the combined output of both compressor units, not just one.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features of the AOC1D Bundle\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuplex Configuration:\u003c\/strong\u003e Sized and specified by Castair for two-compressor installations — handles combined discharge volume from both units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e230V Single-Phase:\u003c\/strong\u003e Matched to 230-volt, single-phase electrical service — check your compressor nameplates before ordering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory-Matched Components:\u003c\/strong\u003e Aftercooler, fan, drain provisions, and hardware are factory-specified for Castair duplex compressor systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e250 PSIG Maximum Working Pressure:\u003c\/strong\u003e Compatible with the full operating pressure range of Castair industrial compressors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e350°F Maximum Inlet Air Temperature:\u003c\/strong\u003e Handles the hottest discharge temperatures from two-stage reciprocating pumps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCools to Within 15°F of Ambient:\u003c\/strong\u003e Brings combined duplex discharge air down to near ambient temperature before the shared receiver tank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e65% Total Moisture Removal:\u003c\/strong\u003e Removes approximately 65% of water vapor from the compressed air stream at the source — every 20-degree temperature drop removes 50% of remaining moisture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Package Ordering:\u003c\/strong\u003e One bundle covers the complete aftercooler installation for a duplex system — no need to source components separately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinnesota Manufacturing:\u003c\/strong\u003e Castair builds to industrial-grade standards in Minnesota\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat Is Included in the AOC1D Bundle\u003c\/h2\u003e\n\u003cp\u003eThe AOC1D is a factory options package. Components are matched to specific Castair duplex compressor configurations — contact us to confirm the exact contents for your compressor models before ordering.\u003c\/p\u003e\n\u003cp\u003eFactory bundle packages typically include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAftercooler heat exchanger:\u003c\/strong\u003e Sized for duplex system output, fan-cooled, 250 PSIG \/ 350°F rated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling fan and motor assembly:\u003c\/strong\u003e 115V, 1-phase, 60 Hz — runs on standard shop power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondensate drain provisions:\u003c\/strong\u003e For removing moisture collected at the aftercooler drain point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting and connection hardware:\u003c\/strong\u003e Factory-matched for the duplex compressor system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOptional accessories: filter with automatic drain, temperature control valve #86816.\u003c\/p\u003e\n\n\u003ch2\u003eAOC Bundle Configurations — Selecting the Right Version\u003c\/h2\u003e\n\u003cp\u003eThree versions of this factory aftercooler bundle cover different electrical service and compressor configurations:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAOC1:\u003c\/strong\u003e 230V, single-phase, simplex — one compressor on standard single-phase service\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAOC1-460:\u003c\/strong\u003e 460V, three-phase, simplex — one compressor on industrial three-phase service\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAOC1D:\u003c\/strong\u003e 230V, single-phase, duplex — two compressors sharing a common tank on single-phase service \u003cem\u003e(this bundle)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you have a duplex system on 460V three-phase service, contact us — we can help identify the correct configuration for your installation.\u003c\/p\u003e\n\n\u003ch2\u003eFull Castair Free Standing Aftercooler Lineup (For Reference)\u003c\/h2\u003e\n\u003cp\u003eCastair's standalone free standing aftercoolers cover 35–300 CFM and are available for field installation on any compressor system:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFSAC35:\u003c\/strong\u003e 35 CFM, 3\/4 inch NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFSAC50:\u003c\/strong\u003e 50 CFM, 1 inch NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFSAC75:\u003c\/strong\u003e 75 CFM, 1 inch NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFSAC100:\u003c\/strong\u003e 100 CFM, 1-1\/4 inch NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC120:\u003c\/strong\u003e 120 CFM, 1-1\/2 inch NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC150:\u003c\/strong\u003e 150 CFM, 1-1\/2 inch NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC240:\u003c\/strong\u003e 240 CFM, 2 inch NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC300:\u003c\/strong\u003e 300 CFM, 2 inch NPT\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhen Does a Shop Need the AOC1D?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou are running a Castair duplex compressor system on 230V service\u003c\/strong\u003e and want factory-integrated aftercooling — this is the bundle designed for that configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou are ordering a new Castair duplex system\u003c\/strong\u003e and want the aftercooler specified and matched at the factory rather than adding components later\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou are retrofitting aftercooling to an existing Castair duplex installation\u003c\/strong\u003e on 230V service — the AOC1D gives you factory-matched components rather than a field-improvised assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYour duplex system is producing wet air\u003c\/strong\u003e and you currently have no aftercooling or an undersized aftercooler — a properly sized duplex aftercooler at the discharge point is the correct fix\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYour refrigerated dryer is not keeping up on a duplex system\u003c\/strong\u003e — the combined thermal load from two compressors discharging into the system is often more than a dryer can handle without an aftercooler upstream to pre-cool the air\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor single-compressor systems, order AOC1 (230V) or AOC1-460 (460V) depending on your electrical service.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e AOC1D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Castair (Cast Air) — Minnesota, USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBundle Type:\u003c\/strong\u003e Complete factory aftercooler options package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 230V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e Single-phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressor Configuration:\u003c\/strong\u003e Duplex (two-compressor system)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure:\u003c\/strong\u003e 250 PSIG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Inlet Air Temperature:\u003c\/strong\u003e 350°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproach Temperature:\u003c\/strong\u003e Within 15°F of ambient\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Removal:\u003c\/strong\u003e Approximately 65% of total moisture (at 250°F inlet)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFan Power:\u003c\/strong\u003e 115V, 1-phase, 60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Accessories — Aftercoolers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Contact us to confirm matched Castair duplex compressor models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h2\u003e\n\u003cp\u003eAir Compressor Factory Direct has been supplying commercial and industrial compressed air equipment since 2016. Duplex compressor systems are a more complex purchase than a single-unit installation — getting the aftercooler configuration right requires knowing your compressor models, combined CFM output, electrical service, and installation layout. When you call us about the AOC1D, we can work through all of those details with you before anything ships.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Shipping:\u003c\/strong\u003e AOC1D bundles ship free to the continental US\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Pre-Sale Technical Support:\u003c\/strong\u003e Call us with your Castair duplex compressor model numbers and we will confirm the AOC1D is the correct bundle for your system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Manufacturer Warranty:\u003c\/strong\u003e All Castair equipment and factory option bundles carry full factory warranty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonest Guidance:\u003c\/strong\u003e If your duplex system needs a different configuration, we will identify the right product before you order — not after it arrives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCastair Specialist:\u003c\/strong\u003e We carry the complete Castair line and understand how the components work together\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342514643157,"sku":"AOC1D","price":4214.56,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-aftercooler-option-bundle-aoc1d-duplex-230v-complete-factory-options-package","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}