The Castair Aftercooler Option Bundle AOC2D (Duplex) 460V is the complete factory-installed options package for Cast Air C2 duplex compressor systems wired for 460V three-phase power. A C2 duplex unit pairs two C2-series pumps on a shared tank — one active, one on standby — with automatic alternation and backup switching. This bundle provides all the aftercooler, drain, metering, and vibration management components factory-installed and rated for 460V duplex operation, at a 10% savings over individual option pricing.
The duplex configuration is specifically for operations that cannot tolerate compressor downtime. If one pump needs service, the second takes over automatically. The AOC2D-460 bundle ensures the entire system — not just the pumps — is properly equipped from day one.
What the AOC2D-460 Bundle Includes
Dual Aftercooler System
- Dual Belt Guard Aftercoolers (#BGAC1x2M): Two factory-mounted aftercoolers rated for 70 CFM total — matched to dual C2-series pump output. Cools both pump discharges before air reaches the shared tank and distribution system. Max operating pressure 250 PSIG, max inlet temperature 350°F. Achieves approximately 65% water vapor reduction.
Automatic Drain System
- Air-Operated Auto Drain (#ADVSM): Purges condensate on each compressor cycle using discharge pressure. No separate power required. Full installation kit included.
- Electronic Auto Drain (#SDV03M): Timer-controlled 115V solenoid drain with strainer. Handles condensate purge during idle periods — overnight, weekends — when the compressor isn't cycling but condensate continues to accumulate.
Hour Meter
- Hour Meter (#HRM460M): 460V-rated elapsed time meter. In a duplex setup, tracking run hours on each pump separately allows you to balance maintenance intervals between the two heads and schedule service without losing production. One pump can come out for service while the other carries the load.
Dual Control
- Dual Control (#DC2): Start/stop and constant-speed load/unload modes for the duplex system. In high-demand facilities, constant-speed unloading reduces motor cycling and extends component life. In lighter-use periods, start/stop saves energy.
Intake Noise Silencers
- Intake Noise Silencers (#SA100x2M): Two silencers — one per pump head. A duplex installation means two pumps, two intake noise sources. Factory-mounted silencers address both without flow restriction.
Vibration Management
- Vibration Pads (#VP1004): Set of four heavy rubber isolation pads for the duplex installation. Two running pump-motor sets on a large shared tank generate significant vibration — isolation protects the floor, welds, and distribution piping.
Right From Start Kit
- #RFS002: Cast Air startup kit for C2 pump family. Correct initial oil fill and break-in documentation for both pump heads.
Who Needs the AOC2D-460 Bundle
This bundle is for facilities installing a Cast Air C2 duplex compressor on 460V three-phase service. Common buyers: hospitals, manufacturing plants, commercial tire shops, and any operation where losing compressed air means shutting down production. The duplex provides genuine failover — not just a spare unit sitting in the corner, but automatic switchover if the primary pump faults or goes down for service.
The 460V requirement means you need three-phase 460V electrical service. If your facility runs 230V three-phase or single-phase, see the AOC2D (230V) bundle. Voltage mismatch destroys motors immediately.
Simplex vs. Duplex — The Decision
- Simplex AOC2 460V: One C2 pump. Lower cost. If it goes down, you're down. Fine for shops that can flex their schedule around maintenance windows.
- Duplex AOC2D 460V (this product): Two C2 pumps. Automatic backup. Higher upfront investment, but zero planned downtime for pump maintenance. The right choice for production-critical environments.
- C3 Duplex (AOC3D): If your CFM demand is higher than two C2 pumps can handle — roughly 70+ CFM at pressure — step up to the AOC3D bundle for C3 duplex systems.
Technical Specifications
- Voltage: 460V, three-phase
- Compatible Compressor Family: Cast Air C2 duplex
- Aftercooler: #BGAC1x2M (dual), 70 CFM rated
- Max Operating Pressure: 250 PSIG
- Max Inlet Air Temperature: 350°F
- Hour Meter: #HRM460M (460V)
- Auto Drain: Air-operated #ADVSM + Electronic #SDV03M (115V)
- Dual Control: #DC2
- Intake Silencers: Two (#SA100x2M)
- Vibration Pads: #VP1004 (set of 4)
- Startup Kit: #RFS002
- Bundle Savings: 10% off individual component pricing
What's in the Box
The AOC2D-460 is factory-installed on your duplex compressor before it ships. All components are factory-mounted and tested. Contact us at 866-217-0063 or Cast Air at (320) 796-0851 for current pricing and lead times.
Why Buy From OEM Diagnostic Tools?
We've specialized in professional shop equipment since 2016. Free shipping, free pre-sale technical support at 866-217-0063, and full Cast Air manufacturer warranty. We'll confirm the right duplex bundle for your specific installation and electrical service before you order.
Call 866-217-0063 for quick answers and help!
