Installation Guide
Tools Needed:
- Torque wrench set
- Level
- Screwdrivers (flat and Phillips)
- Pipe wrenches
- Air pressure gauge
- Electrical multimeter
Step-by-Step Installation
- Site Preparation: Select a clean, dry, well-ventilated location with adequate space for maintenance access and proper airflow.
- Foundation Requirements: Install on a solid, level concrete foundation capable of supporting the compressor's weight and vibration.
- Air System Connection: Connect to air distribution system using properly sized piping with minimum bends and restrictions.
- Electrical Connection: Connect to appropriate power supply (see specifications). All electrical work must comply with local codes.
- Oil System Check: Verify proper oil level and ensure all oil lines are properly connected and free of leaks.
- Cooling System Setup: Ensure adequate ventilation and cooling air flow around the compressor unit.
- Initial Startup Procedure: Perform pre-start checks, then follow step-by-step startup procedure outlined in manual.
Specifications
| Model Series | 12BS-50H |
| Compressor Type | Rotary Screw Air Compressor |
| Configuration | Base Mounted / Tank Mounted |
| Air Delivery | 50 HP / 210 CFM at 100 PSIG |
| Operating Pressure | 100-175 PSIG (7-12 Bar) |
| Control Type | Microprocessor Control with LCD Display |
| Motor Type | TEFC, 3 Phase, 60 Hz |
| Power Requirements | 460V, 60Hz, 3 Phase, 50 Amps |
| Sound Level | 75 dBA at 1 Meter |
| Dimensions (LxWxH) | 72 x 36 x 48 inches |
| Weight | 1,850 lbs (840 kg) |
| Oil Capacity | 4.5 Gallons (17 Liters) |
Warranty Information
- Standard Warranty: 2 years parts and labor
- Air End Warranty: 5 years on rotary screw air end
- Extended Coverage: Optional maintenance contracts available
For warranty service, contact Sullair Customer Service at 1-800-888-3444 or visit Sullair.com
Key Features
Rotary Screw Technology
Sullair's proven rotary screw design provides continuous duty operation with high efficiency and reliability for industrial applications.
Smart Controls
Advanced microprocessor control system monitors operating parameters, provides diagnostic information, and optimizes performance.
Efficient Air/Oil Separation
High-efficiency separation system ensures clean, oil-free air delivery while minimizing oil carryover and consumption.
Thermal By-Pass Valve
Protects compressor during startup and shutdown by maintaining proper oil temperature and pressure.
Heavy-Duty Construction
Industrial-grade components and rugged construction ensure reliable operation in demanding environments.
Easy Maintenance Access
Designed with serviceability in mind, featuring removable panels and accessible service points.
Major Components
Air End Assembly
Precision machined rotors and housing for efficient compression
Motor Assembly
50 HP industrial motor with premium insulation class
Oil System
Complete oil circuit with cooler, filter, and separator
Control System
Microprocessor controller with safety shutdowns
Cooling System
Air-to-oil cooler with thermostatic control
Inlet System
Air filter and inlet valve assembly
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Compressor won't start | Power issue, safety switch tripped, controller fault | Check power supply, reset safety switches, check controller diagnostics |
| Low air pressure | Air leaks, clogged filter, worn air end | Check for leaks, replace air filter, inspect air end components |
| High operating temperature | Dirty cooler, low oil level, faulty thermostat | Clean cooler fins, check oil level, test thermostat operation |
| Excessive oil consumption | Worn separator, oil leaks, improper oil type | Replace separator element, check for leaks, use recommended oil |
| Unusual noises | Worn bearings, loose components, cavitation | Inspect bearings, tighten mounting bolts, check inlet conditions |
| Frequent shutdowns | Overheating, electrical issues, control faults | Check cooling system, electrical connections, controller settings |
Error Codes
- E01: High temperature shutdown - Check cooling system and oil level
- E02: High pressure shutdown - Check pressure switch and relief valve
- E03: Motor overload - Check electrical connections and load
- E04: Low oil pressure - Check oil level and pump
- E05: Phase loss - Check power supply and connections
- E06: Sensor fault - Check temperature and pressure sensors
Manual Downloads
Current Model Manuals
12BS-50H
50HP Rotary Screw Compressor
12BS-40H
40HP Rotary Screw Compressor
12BS-75H
75HP Rotary Screw Compressor
12BS-100H
100HP Rotary Screw Compressor
Popular Previous Models
12BS-30H
30HP Rotary Screw Compressor
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25HP Rotary Screw Compressor
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