The Castair Aftercooler Option Bundle AOC2 460V is the complete factory-installed options package for Cast Air C2-series simplex compressors wired for 460V three-phase power. The C2 pump covers the 7.5 to 10 HP range — the most common industrial compressor class for mid-size shops and mechanical rooms. Ordering the AOC2 bundle gets you aftercooling, automatic drains, hour metering, dual control, and vibration isolation in one matched factory package at a 10% savings versus ordering components individually.
The C2 is a V4-configuration two-stage cast iron pump weighing approximately 320 lbs, running at 895 RPM in the 7.5 HP configuration. It produces in the range of 32–45 CFM at rated pressure. The aftercooler in this bundle is sized specifically for that output range, not a generic unit guessed at after the fact.
What the AOC2 460V Bundle Includes
Aftercooler System
- Belt Guard Aftercooler (#BGAC2M): Factory-mounted, rated for 50 CFM. Fits within the belt guard housing and connects directly to the pump discharge. Reduces compressed air from pump discharge temperatures (typically 280–350°F) down toward ambient, achieving approximately 65% total water vapor removal. Every tool, dryer, and air line in your shop benefits from cooler, drier air.
- Max Operating Pressure: 250 PSIG
- Max Inlet Temperature: 350°F
Automatic Drain System
- Air-Operated Auto Drain (#ADVSM): Purges condensate automatically on each compressor cycle using discharge pressure. No separate power supply needed. Installation kit (#ADVSM = air valve + mounting hardware) included.
- Electronic Auto Drain (#SDV03M): Solenoid-operated timed drain with strainer, 115V. Provides scheduled purge cycles separate from compressor operation — useful for overnight or weekend condensate accumulation when the compressor sits idle.
Hour Meter
- Hour Meter (#HRM460M): 460V-rated elapsed time meter. Tracks actual pump run hours for scheduled maintenance — oil changes, belt tension checks, valve inspections. On a two-stage cast iron pump like the C2, staying on a maintenance schedule dramatically extends pump life. A belt or valve failure at 8,000 hours is avoidable; the same failure at 3,000 hours due to neglected maintenance is just money thrown away.
Dual Control
- Dual Control (#DC2): Switches the compressor between start/stop and load/unload (constant speed) operation. In shops with steady air demand, constant-speed unloading reduces motor starts and extends motor and starter life. In shops with intermittent demand, start/stop saves energy. Dual control gives you both modes without hardware swaps.
Intake Noise Silencer
- Intake Noise Silencer (#SA100M): Bolt-on intake silencer for the C2 pump. The cast iron pump intake can produce significant noise at 895 RPM — the silencer reduces intake noise without restricting airflow or reducing CFM output.
Vibration Management
- Vibration Pads (#VP1004): Set of four heavy rubber isolation pads sized for the C2 installation. Protects the floor slab, tank connections, and distribution piping from vibration fatigue over the life of the unit.
Right From Start Kit
- #RFS002: Cast Air factory startup kit for C2 pump family. Correct initial oil fill, break-in procedure documentation, and service reference. Critical for first-time startup — starting a two-stage pump with insufficient or incorrect oil causes immediate wear to cylinder walls and rings.
Who Needs This Bundle
The AOC2-460 is for shops running a Cast Air C2 simplex compressor on 460V three-phase service. Common applications include tire and alignment shops, body shops, general auto repair shops with 3–6 bays, and light manufacturing facilities. The C2 in the 7.5–10 HP range handles 25–45 CFM at line pressure, enough for 3–5 simultaneous air tools depending on tool demand.
If your building is on 230V three-phase or single-phase service, this is not your bundle — see the AOC2 (230V) listing. Always confirm your service voltage and phase before ordering.
AOC2 vs. Stepping Up or Down
- AOC1 Bundle: Covers the C1 pump (5 HP range, ~22 CFM @ 0 PSI). If your shop only runs one or two air tools at a time and rarely hits demand peaks, the C1 may be sufficient and the AOC1 bundle is the appropriate package.
- AOC2 Bundle (this product): C2 pump, 7.5–10 HP, ~32–45 CFM @ 0 PSI. Correct for shops with moderate steady demand.
- AOC3 Bundle: C3 pump, 15 HP, ~62 CFM @ 0 PSI. If you're running continuous high-demand tools like plasma cutters, large spray booths, or sandblasting, step up to the C3. Don't stretch the C2 beyond its rated duty cycle.
Technical Specifications
- Voltage: 460V, three-phase
- Compatible Compressor Family: Cast Air C2 simplex
- Aftercooler: #BGAC2M, 50 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 Silencer: #SA100M
- Vibration Pads: #VP1004 (set of 4)
- Startup Kit: #RFS002
- Bundle Savings: 10% off individual component pricing
What's in the Box
The AOC2-460 is a factory-installed option package, not a standalone product shipped separately. These components are factory-mounted and tested on your C2 compressor before it ships. 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. Order through us and you get free shipping, free pre-sale support at 866-217-0063, and the full Cast Air manufacturer warranty. We'll help you confirm the AOC2-460 is the right package for your specific C2 model and electrical service before you commit. Questions about 460V vs. 230V, simplex vs. duplex, or which AOC tier fits your compressor — call us.
Call 866-217-0063 for quick answers and help!
