Installation Guide
Tools Needed:
- Socket wrench set
- Level
- Screwdrivers (flat and Phillips)
- Pipe wrench
- Tape measure
- Torque wrench
Step-by-Step Installation
- Choose Installation Location: Select a clean, dry, well-ventilated location with adequate space for maintenance access and proper air circulation.
- Foundation Preparation: Install on a solid, level concrete foundation capable of supporting the compressor's weight and vibration.
- Uncrating and Positioning: Remove all shipping materials and position the compressor using appropriate lifting equipment.
- Electrical Connection: Connect to appropriate power supply (see specifications). All electrical work must be performed by a qualified electrician.
- Air System Connection: Install proper air piping with drip legs, shutoff valves, and pressure relief valves as required by local codes.
- Oil Check: Verify proper oil level in the crankcase before initial startup.
- Initial Startup: Perform initial startup following the break-in procedure outlined in the manual.
Specifications
| Model Number | Q325-100 |
| Type | Two-Stage Reciprocating Air Compressor |
| Compressor Pump | QT Pro™ Two-Stage |
| Horsepower | 7.5 HP |
| Air Delivery (CFM) | 24.1 CFM at 175 PSI |
| Maximum Pressure | 175 PSI |
| Tank Capacity | 80 Gallons |
| Motor Type | TEFC (Totally Enclosed Fan Cooled) |
| Voltage Requirements | 230V/460V, 3-Phase, 60Hz |
| Full Load Amps | 21A at 230V / 10.5A at 460V |
| Dimensions (LxWxH) | 72 x 30 x 68 inches |
| Weight | 785 lbs |
| Sound Level | 78 dB(A) |
Warranty Information
- Compressor Pump: 5 years limited warranty
- Tank: Lifetime limited warranty
- Motor: 2 years limited warranty
- Parts & Labor: 1 year limited warranty
For warranty service, contact Quincy Compressor Customer Service at 1-800-321-7000 or visit QuincyCompressor.com
Key Features
QT Pro™ Two-Stage Pump
Advanced two-stage design provides greater efficiency, cooler operation, and longer life compared to single-stage compressors.
Pressure Lubrication System
Full pressure lubrication ensures proper oil flow to all critical components, reducing wear and extending compressor life.
Intercooler & Aftercooler
Dual cooling system reduces air temperature between stages and after compression, removing moisture and increasing efficiency.
Large Capacity Air Receiver
80-gallon ASME-certified tank provides ample air storage for demanding applications and reduces compressor cycling.
IntelliSys™ Controller
Microprocessor-based control system monitors operation, provides diagnostic information, and optimizes performance.
Low RPM Operation
Operating at 870 RPM reduces wear, noise, and heat generation while improving efficiency and reliability.
Performance Specifications
Air Delivery
24.1 CFM at 175 PSI for continuous operation
Duty Cycle
100% duty cycle capable of continuous operation
Oil Capacity
2.5 quarts of Quincy Synerlec® synthetic oil
Cooling System
Fan-cooled with temperature monitoring
Control System
Digital pressure control with auto/stop operation
Safety Features
Multiple safety valves and pressure switches
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Compressor won't start | Power issue, pressure switch fault, thermal overload | Check power supply, reset overload, verify pressure switch setting |
| Low air pressure | Air leaks, worn valves, intake filter clogged | Check for leaks, inspect valves, clean/replace air filter |
| Excessive noise/vibration | Loose components, worn bearings, improper foundation | Tighten all fasteners, check bearings, verify proper installation |
| Overheating | Dirty cooling fins, low oil, restricted airflow | Clean cooling surfaces, check oil level, ensure proper ventilation |
| Excessive oil consumption | Worn rings, leaking seals, overfilling | Check compression, inspect seals, verify proper oil level |
| Frequent cycling | Air leaks, undersized piping, faulty check valve | Locate and repair leaks, check piping size, inspect check valve |
Error Codes (IntelliSys™ Controller)
- E-01: High temperature shutdown - Check cooling system and oil level
- E-02: Low oil pressure - Check oil level and pressure switch
- E-03: Motor overload - Check electrical connections and load
- E-04: Pressure sensor fault - Check pressure transducer
- E-05: Communication error - Check controller connections
- E-06: Run time exceeded - Check for continuous operation issues
Manual Downloads
Quincy 325 Series Manuals
Q325-100
7.5HP Two-Stage Compressor
Q325-75
5HP Two-Stage Compressor
Q325-125
10HP Two-Stage Compressor
Q325-60
3HP Two-Stage Compressor
Related Models & Accessories
QGS Series
Rotary Screw Compressors
QT Series
Single-Stage Compressors
Air Treatment
Dryers & Filters Manual
Parts Catalog
325 Series Parts List