Chicago Pneumatic QRS 20 125 BM 20 HP Rotary Screw Air Compressor with Dryer, Base Mount - PN 4152027008
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Description
Chicago Pneumatic QRS 20 125 BM 20 HP Rotary Screw Air Compressor with Dryer, Base Mount - PN 4152027008
Quiet, Continuous-Duty Compressed Air with an Integrated Refrigerated Dryer
The Chicago Pneumatic QRS 20 125 BM Rotary Screw Air Compressor with Dryer, part number 4152027008, combines dependable industrial compressed-air performance with factory-integrated moisture removal in a compact, base-mounted package.
Powered by a 20 HP motor, this fixed-speed rotary screw compressor delivers 82.2 ACFM at 125 PSIG. The integrated refrigerated air dryer is pre-piped into the package, reducing installation complexity and helping provide clean, dry compressed air to downstream equipment.
The Chicago Pneumatic QRS, or Quiet Rotary Screw, Series uses a single-stage, air-cooled, oil-injected rotary screw design. Its enclosed package delivers smooth, pulse-free airflow with reduced vibration and an approximate sound level of 67 dBA, making it considerably quieter than many open-frame reciprocating compressors.
The base-mounted configuration is ideal for facilities with an existing air receiver or central compressed-air system. Measuring approximately 55 inches long, 31 inches wide, and 49 inches high, the compressor-and-dryer package provides substantial airflow while occupying less than 16 square feet of floor space.
The industrial TEFC motor can be configured for 208, 230, or 460-volt three-phase electrical service, providing installation flexibility for many commercial and industrial facilities.
Manufacturer Part Number: 4152027008
Key Features and Benefits
82.2 ACFM at 125 PSIG
Delivers dependable airflow for multiple pneumatic tools, CNC machinery, automotive equipment, production systems, assembly equipment, and other demanding applications.
20 HP Fixed-Speed Rotary Screw Compressor
The fixed-speed design provides consistent compressor output for facilities with steady or predictable compressed-air demand.
Continuous Operating Capability
The oil-injected rotary screw airend is designed for continuous operation, eliminating the mandatory cooling periods commonly associated with reciprocating compressors.
Integrated Refrigerated Air Dryer
The factory-integrated refrigerated dryer cools the compressed air to help condense and remove moisture before the air enters the facility’s distribution system.
Dry compressed air helps protect:
- Pneumatic tools
- CNC machinery
- Automation components
- Paint and finishing equipment
- Production machinery
- Regulators and control valves
- Compressed-air piping
Compact Base-Mounted Configuration
This model is supplied without an integrated air receiver tank. The compressor and dryer are mounted together on a compact base, making the package ideal for connection to an existing receiver or central compressed-air system.
Pre-Piped Dryer Installation
The refrigerated dryer is integrated and pre-piped at the factory, reducing external piping requirements and simplifying installation compared with purchasing a separate compressor and dryer.
Quiet Enclosed Design
The low-sound enclosure limits operating noise to approximately 67 dBA, allowing installation closer to active work areas when proper ventilation and service clearances are provided.
ES4000 Connect Controller
The ES4000 Connect controller provides easy compressor operation, system monitoring, energy-management features, and remote connectivity.
Controller features include:
- Easy-to-use digital display
- Pressure and temperature monitoring
- Operating-hour tracking
- Service status and notifications
- Real-time warnings and shutdown alarms
- DSS advanced energy-saving functions
- Intelligent shutdown
- Leakage-detection capability
- Remote pressure-band adjustment
- Over-the-air software updates
- Connectivity for remote monitoring and control
ICONS Remote Monitoring
The ES4000 Connect controller supports Chicago Pneumatic’s ICONS platform, allowing authorized users to monitor compressor information from a compatible computer, tablet, or smartphone.
Available information may include:
- Compressor operating status
- Service history and notifications
- System pressure
- Temperature
- Leakage information
- Equipment health
- Warning and shutdown alerts
Network access, registration, and ICONS activation may be required.
Wye-Delta Reduced-Voltage Starting
The Wye-Delta starter reduces motor-starting current compared with across-the-line starting. This helps limit excessive voltage drop and reduces stress on the facility’s electrical system during startup.
Tri-Voltage Three-Phase Motor
The industrial TEFC motor can be configured for:
- 208 volts, three phase
- 230 volts, three phase
- 460 volts, three phase
- 60 Hz operation
Final voltage configuration and electrical installation should be completed by a qualified electrician.
Permanently Aligned Belt-Drive System
The belt-drive transmission provides dependable power transfer between the motor and rotary screw airend. Chicago Pneumatic’s permanently aligned design helps simplify drive maintenance and support long-term reliability.
Efficient Pressurized-Canopy Cooling
The pressurized enclosure efficiently directs cooling air through the compressor package.
Cooling-system features include:
- Designed for ambient temperatures up to 115°F
- Radial fan directly coupled to the main motor
- Pre-filtered fresh-air intake
- Cool inlet air directed toward the compressor
- Easy cooler access for cleaning
- Reduced number of separate cooling-system components
Spin-On Service Components
Spin-on oil-filter and air-oil separator components help simplify preventive maintenance and reduce downtime during scheduled service.
Vibration-Isolated Assembly
Internal vibration isolation helps reduce vibration transferred to the surrounding floor and connected compressed-air piping.
Standard Features
- 20 HP oil-injected rotary screw compressor
- 82.2 ACFM at 125 PSIG
- Integrated refrigerated air dryer
- Base-mounted compressor-and-dryer package
- Fixed-speed operation
- Continuous operating capability
- Approximately 67 dBA sound level
- Low-sound enclosure
- Single-stage rotary screw airend
- Air-cooled design
- Pressurized-canopy cooling system
- Pre-filtered fresh-air intake
- Radial cooling fan coupled to the main motor
- Wye-Delta reduced-voltage starter
- ES4000 Connect controller
- ICONS remote-monitoring capability
- DSS advanced energy-saving functions
- Load/no-load control with intelligent shutdown
- Permanently aligned belt-drive system
- Spin-on oil filter
- Spin-on air-oil separator
- TEFC motor
- NEMA 1 electrical protection
- Vibration-isolated assembly
- UL and cUL-approved control panel
- Tri-voltage three-phase motor
- Space-saving design under 16 square feet
The January 2024 QRS 20-30 brochure confirms the controller, dryer configuration, electrical options, cooling design, dimensions, weight, and standard package features.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Chicago Pneumatic |
| Model | QRS 20 125 BM with Dryer |
| Manufacturer Part Number | 4152027008 |
| Compressor Type | Oil-injected rotary screw |
| Operating Type | Fixed speed |
| Drive Type | Belt drive |
| Compression Stages | Single stage |
| Motor Output | 20 HP |
| Rated Airflow | 82.2 ACFM |
| Rated Operating Pressure | 125 PSIG |
| Mounting Configuration | Base mounted |
| Air Receiver Tank | Not included |
| Integrated Refrigerated Dryer | Yes |
| Voltage | 208-230/460V |
| Phase | Three phase |
| Frequency | 60 Hz |
| Motor Enclosure | TEFC |
| Starter Type | Wye-Delta reduced voltage |
| Cooling Method | Air cooled |
| Controller | ES4000 Connect |
| Remote Monitoring | ICONS compatible |
| Approximate Sound Level | 67 dBA |
| Electrical Protection | NEMA 1 |
| Duty Rating | Continuous operating capability |
| Approximate Dimensions | 55 × 31 × 49 inches |
| Approximate Weight | 798 pounds |
| Maximum Rated Ambient Temperature | 115°F |
Recommended Applications
The Chicago Pneumatic QRS 20 125 BM with Dryer is well suited for:
- Automotive repair shops
- Tire and fleet-service facilities
- Automotive dealerships
- Collision repair and body shops
- CNC machine shops
- Metal fabrication facilities
- Manufacturing operations
- Woodworking and cabinet shops
- Paint and finishing applications
- Packaging facilities
- Pneumatic assembly equipment
- Plastics-processing operations
- Industrial maintenance departments
- Automation systems
- Production machinery
- Multi-station pneumatic systems
- General industrial compressed-air systems
Benefits of the Integrated Refrigerated Dryer
Atmospheric air naturally contains water vapor. Compressing the air concentrates that moisture, which can condense into liquid water as the air cools inside the receiver and distribution piping.
The integrated refrigerated dryer helps reduce moisture in the compressed-air system and provides several potential benefits:
- Helps protect pneumatic tools from internal corrosion
- Reduces water accumulation in compressed-air piping
- Helps protect CNC machinery and automation components
- Improves air quality for paint and finishing applications
- Reduces moisture-related equipment maintenance
- Helps prevent water contamination at points of use
- Simplifies installation compared with a separate dryer
- Reduces external piping and electrical connections
- Helps protect downstream regulators and control valves
- Supports more consistent production-air quality
The dryer must be properly ventilated, drained, and maintained to provide dependable moisture removal.
Air Receiver Recommendations
This base-mounted package does not include an air receiver tank.
A properly sized ASME-rated receiver is recommended for most installations to:
- Provide compressed-air storage
- Stabilize system pressure
- Support short periods of peak demand
- Reduce rapid compressor loading and unloading
- Improve condensate separation
- Reduce pressure fluctuations at downstream equipment
Receiver capacity should be selected according to the facility’s air-demand profile, pressure band, available space, and acceptable compressor cycling frequency.
Additional Air Treatment Recommendations
Although this compressor includes a refrigerated dryer, additional air treatment may still be required to remove condensed moisture, particulate contamination, and oil aerosols.
Depending on the application, the compressed-air system may also require:
- Separate ASME-rated receiver tank
- Moisture separator
- Automatic receiver-tank drain
- Automatic dryer condensate drain
- General-purpose particulate filter
- High-efficiency coalescing filter
- Activated-carbon filter
- Pressure regulator
- Oil-water separator
- Point-of-use filtration
Paint spraying, instrumentation, sensitive CNC machinery, and other critical processes may require additional filtration or a lower pressure dew point than a standard refrigerated dryer can provide.
Installation Considerations
The compressor should be installed indoors on a level, structurally adequate surface with sufficient room for ventilation, inspection, and routine maintenance.
Before installation:
- Confirm that the facility has 208, 230, or 460-volt three-phase electrical service.
- Verify that total compressed-air demand is within the compressor’s 82.2 ACFM capacity.
- Connect the compressor to a properly sized ASME-rated receiver tank.
- Confirm that piping, filters, and downstream equipment are rated for the operating pressure.
- Verify the electrical requirements shown on the refrigerated dryer data plate.
- Provide adequate ventilation around both the compressor and dryer.
- Prevent heated cooling air from recirculating into either cooling intake.
- Keep the package pre-filter and fresh-air intake clear of obstructions.
- Install the required electrical disconnects and overcurrent protection.
- Confirm that the electrical system can support the Wye-Delta starter.
- Use properly sized compressed-air piping.
- Install a flexible connection between the compressor and rigid piping.
- Verify that the dryer and receiver condensate drains are installed and operating correctly.
- Route oily condensate to an approved oil-water separator or disposal system.
- Maintain the manufacturer’s recommended service clearances.
- Verify proper motor rotation during startup.
- Configure the ES4000 Connect controller for the application.
- Activate ICONS remote monitoring when desired.
Although the QRS 20-30 platform is designed for ambient temperatures up to approximately 115°F, cooler and well-ventilated installation conditions generally support better reliability and longer equipment life.
Electrical and mechanical installation should be completed according to Chicago Pneumatic’s instructions and all applicable local codes.
Routine Maintenance
Proper preventive maintenance helps protect compressor output, dryer performance, operating efficiency, temperature control, and equipment life.
Typical Compressor Maintenance
- Check the compressor lubricant level.
- Inspect and replace the intake air filter as needed.
- Clean or inspect the package pre-filter.
- Replace the oil filter at the recommended interval.
- Replace the air-oil separator when required.
- Use approved compressor lubricant.
- Inspect belt condition, alignment, and tension.
- Clean the oil cooler and cooling surfaces.
- Keep the radial-fan intake and discharge areas clear.
- Inspect hoses, fittings, valves, and electrical connections.
- Check the separate receiver and condensate drain.
- Inspect the compressed-air system for leaks.
- Review ES4000 Connect service notifications.
- Use ICONS data to identify operating irregularities.
Typical Refrigerated-Dryer Maintenance
- Verify that the dryer condensate drain is operating.
- Clean the condenser and ventilation surfaces.
- Inspect the dryer for excessive pressure drop.
- Confirm that inlet-air temperature remains within operating limits.
- Check for dryer warnings or abnormal operating conditions.
- Maintain adequate airflow around the dryer.
- Inspect filters installed before and after the dryer.
- Replace filter elements at the recommended intervals.
Maintenance intervals may vary depending on operating hours, ambient temperature, humidity, dust levels, and installation conditions.
Warranty Information
1-Year Standard Warranty
Eligible for up to 5 years of warranty coverage. Terms and conditions apply.
Basic Troubleshooting
Compressor Cannot Maintain Pressure
Check for compressed-air leaks, an open condensate drain, a restricted intake filter, incorrect pressure settings, or downstream equipment consuming more than the available 82.2 ACFM.
Compressor Runs Hot or Shuts Down
Inspect room ventilation, ambient temperature, cooler cleanliness, lubricant level, package pre-filter, intake restrictions, radial-fan operation, and the possibility of heated cooling air recirculating into the compressor intake.
Compressor Loads and Unloads Frequently
Check for compressed-air leaks, rapidly changing air demand, incorrect pressure-band settings, an open condensate drain, or an improperly sized receiver tank.
Compressor Does Not Start
Check the electrical disconnect, incoming voltage, fuses, circuit protection, emergency-stop control, ES4000 Connect settings, and any active warning or shutdown condition.
Compressor Rotation Is Incorrect
Three-phase electrical connections may need to be corrected to achieve proper motor rotation. Disconnect power and have a qualified electrician correct the phase rotation before operating the compressor.
Excessive Moisture Downstream
Check dryer operation, the dryer condensate drain, receiver-tank drain, inlet-air temperature, ambient temperature, and airflow through the dryer.
Dryer Is Operating but Water Is Still Present
Inspect automatic drains, downstream piping, receiver drainage, operating conditions, and the possibility that moisture is entering from another section of the system.
Excessive Pressure Drop
Inspect the refrigerated dryer, compressed-air filters, piping size, isolation valves, regulators, and filter elements for restrictions or contamination.
Dryer Does Not Start
Check the dryer power supply, disconnect, operating switch, ventilation, alarm indicators, and condensate-drain system. Consult the supplied dryer manual before resetting an alarm.
ICONS Remote Monitoring Is Not Updating
Check the facility network connection, controller communication settings, ICONS registration, account configuration, and activation status.
Controller Displays a Warning or Fault
Record the warning or fault information and consult the operating manual. Do not repeatedly reset protective shutdowns without identifying and correcting the underlying cause.
Electrical repairs, refrigeration-system repairs, internal pressure-system repairs, belt adjustments, controller repairs, and major compressor service should be completed by qualified personnel.
Frequently Asked Questions
How much air does the Chicago Pneumatic QRS 20 125 BM produce?
The Chicago Pneumatic QRS 20 125 BM delivers 82.2 ACFM at 125 PSIG.
What is the manufacturer part number?
The manufacturer part number is 4152027008.
Does this compressor include a refrigerated air dryer?
Yes. This package includes an integrated, pre-piped refrigerated air dryer that helps remove moisture before the compressed air enters the facility’s distribution system.
Does this compressor include an air receiver tank?
No. This model is base mounted and does not include an air receiver tank. A properly sized separate receiver is recommended for most installations.
Is this a single-phase compressor?
No. This model requires three-phase electrical power.
What voltages can this compressor use?
The compressor motor can be configured for 208, 230, or 460-volt three-phase power.
How loud is the Chicago Pneumatic QRS 20?
The QRS 20 has an approximate sound rating of 67 dBA.
Can this compressor operate continuously?
Yes. The QRS 20-30 platform is designed for continuous operating capability when properly sized, installed, ventilated, and maintained.
What is a Wye-Delta starter?
A Wye-Delta starter initially starts the motor using a reduced-voltage configuration and then transitions to normal operation. This reduces startup current compared with an across-the-line starter.
What does the ES4000 Connect controller do?
The ES4000 Connect provides compressor monitoring, service notifications, real-time warnings, shutdown alarms, energy-saving functions, leakage detection, remote-control capabilities, and software updates.
What is ICONS remote monitoring?
ICONS allows authorized users to review compressor alerts and operating information from a compatible computer, tablet, or smartphone.
Does the refrigerated dryer remove oil?
No. A refrigerated dryer primarily removes moisture by cooling the compressed air. Coalescing filtration is required to remove fine oil aerosols.
Is this compressor suitable for CNC equipment?
Yes. Its continuous-duty output, integrated refrigerated dryer, and stable airflow make it a strong option for appropriately sized CNC and manufacturing applications.
Can this compressor be used for paint applications?
Yes, when properly sized. Paint applications normally require coalescing filtration and appropriate point-of-use air treatment in addition to the refrigerated dryer.
Can this compressor operate multiple air tools?
Yes, provided the combined air consumption of all tools and equipment operating simultaneously does not exceed the compressor’s rated output of 82.2 ACFM.
What warranty is included?
This compressor includes a one-year standard warranty and may be eligible for up to five years of warranty coverage. Terms and conditions apply.
Why choose a rotary screw compressor instead of a piston compressor?
A rotary screw compressor provides continuous-duty capability, smoother airflow, reduced vibration, quieter operation, and longer operating cycles than many traditional reciprocating compressors.
What is the difference between fixed-speed and variable-speed operation?
A fixed-speed compressor runs its motor at a constant speed and loads or unloads according to system demand. It is generally best suited for facilities with steady or predictable compressed-air usage.
How do I determine whether 82.2 ACFM is enough?
Add the CFM requirements of all tools and equipment that may operate simultaneously. Include additional capacity for compressed-air leaks, peak demand, and future growth.
Why Buy from Compressed Air Advisors Online?
Compressed Air Advisors Online provides more than equipment in a box. Our team offers knowledgeable product-selection assistance, compressed-air system guidance, premium industrial manufacturers, and nationwide delivery.
We can help determine whether the Chicago Pneumatic QRS 20 125 BM with Dryer provides the correct airflow, operating pressure, electrical configuration, receiver capacity, and air quality for your application.
When you need dependable compressed-air equipment supported by real-world application knowledge, Compressed Air Advisors Online is your compressed-air partner.
