Description
ELGi EN15 20 HP EN Series Rotary Screw Air Compressor
175 PSIG • 230 V • 3-Phase • Air-Cooled • Base Mount
ELGi’s EN series electric lubricated rotary screw air compressors are built for reliability, low maintenance requirements, and a compact footprint for industrial applications where space and operating cost matter.
What’s Included
- Rotary screw compressor package (base-mount).
- Ship-loose water separator (EWS075-A).
Key Features
- Oil-injected, air-cooled rotary screw design built for continuous-duty shop and industrial air demands.
- Encapsulated airend and belt-drive airend design for reliability and serviceability across the EN range.
- TEFC NEMA Premium efficiency motor with Class F insulation across the range.
- Wye-delta starting on 20 HP models to help reduce inrush on start-up.
- Compact footprint and simplified maintenance access for small mechanical rooms and crowded production floors.
- Best-in-class warranty coverage: 1-year bumper-to-bumper, 6-year airend, and 5-year package warranty (terms apply).
Specifications
| MPN | S013699 |
|---|---|
| Series / Model | ELGi EN Series / EN15 |
| Motor Power | 20 HP |
| Nominal Pressure | 175 PSIG |
| Airflow at Nominal Pressure | 58.0 CFM |
| Electrical | 230 V / 3 Phase / 60 Hz |
| Cooling | Air-Cooled |
| Configuration | Base Mount |
Benefits
- Right-sized performance for common plant air tools, packaging, maintenance, and light manufacturing air needs.
- Package options let you standardize installation: base-mount for custom system design, or tank/dryer packages for faster deployment.
- Easy to expand later with an external dryer/filters as air quality requirements increase.
Installation & Application Notes
- Verify your electrical service matches the unit nameplate before installation; use a licensed electrician for connections and protection sizing.
- Install a receiver tank sized for your demand profile and add filtration/drying based on end-use air quality needs.
- Select drying and filtration based on your end-use air quality requirements.
- Confirm system airflow demand does not exceed the compressor’s rated capacity at your selected pressure.
Frequently Asked Questions
ELGi EN15 20 HP EN Series Rotary Screw Air Compressor
▶️ Question: What’s the difference between base mount, tank mount, and Total Air System packages?
Answer: Base-mount units are the compressor package only (ideal for tying into an existing air system). Tank-mount units add a receiver tank and timer drain for a compact footprint. Total Air System packages add a receiver tank plus integrated drying and filtration to improve air quality and simplify installation.
▶️ Question: Do tank-mount EN packages include a water separator?
Answer: Base-mount EN packages ship with a water separator (EWS075-A). Tank-mount packages do not include a water separator, so add separation/filtration at the compressor discharge if your application needs it.
▶️ Question: Which dryer should I choose: refrigerated or desiccant?
Answer: Refrigerated drying is a strong fit for general-purpose plant air where you want dependable moisture removal with lower complexity. Desiccant drying is typically selected when you need much lower dew points for moisture-sensitive processes, instruments, or pneumatic controls.
▶️ Question: What electrical service is required for this unit?
Answer: This configuration is 230 V, 3-phase, 60 Hz. Confirm your facility voltage and available phase match, and size wiring, disconnects, and overcurrent protection per local code and the compressor nameplate.
▶️ Question: What maintenance items should I plan for on an oil-injected rotary screw system?
Answer: Plan for routine oil and filter changes, intake filtration service, and periodic inspection of belts and cooling airflow paths. Proper filtration and drying help reduce downstream contamination and moisture-related issues.
▶️ Question: What warranty coverage is included?
Answer: EN series compressors include 1-year bumper-to-bumper coverage, a 6-year airend warranty, and a 5-year package warranty (terms and conditions apply).
