Description
Stop Moisture From Reaching Your Tools and Air Lines — Schulz ADS 175 Refrigerated Air Dryer (175 CFM)
Compressed air leaves the tank saturated with water vapor. As it cools downstream, that vapor condenses into liquid that rusts piping, fouls air tools, ruins paint and powder finishes, and freezes control lines. The Schulz ADS 175 is a non-cycling refrigerated air dryer that chills 175 SCFM of compressed air to a stable 41°F dew point, dropping the water out before it ever reaches your equipment. It is sized to match the output of industrial systems (~10-25 hp), so you dry your air without oversizing or wasting energy. If you are unsure whether the ADS 175 matches your compressor, call or text CET at 586-210-0555 before ordering — we will confirm the right capacity for your system.
✓ Non-cycling refrigerated design — stable, reliable dew point • ✓ 175 SCFM at 100 psig • ✓ DMC35 digital controller • ✓ Automatic timed condensate drain • ✓ R407C refrigerant — high efficiency
Model: ADS 175 • Capacity: 175 SCFM • Connection: 1-1/2" NPT-F • Power: 115V 1-PH • Refrigerant: R407C
Rated Dew Point: 41°F (5°C) • CET Verified • Call or text 586-210-0555 — confirm sizing before ordering
Overview
At a Glance
Specifications
Tech Specs
| Model | ADS 175 |
| Rated Flow | 175 SCFM |
| Nominal Working Pressure | 100 psig (7 barg) |
| Max Working Pressure | 203 psig |
| Inlet / Outlet Connection | 1-1/2" NPT-F |
| Electrical | 115V / 1-Phase / 60 Hz |
| Nominal Current | 7.7 A |
| Refrigerant | R407C |
| Rated Dew Point | 41°F (5°C) |
| Max Inlet Air Temperature | 131°F (55°C) |
| Max Ambient Temperature | 113°F (45°C) |
| Dimensions (H × W × L) | 34-13/16" × 21-7/8" × 22-13/16" |
| Weight | 119 lb (54 kg) |
| UPC | 7909480039834 |
Rated at 100°F ambient, 100 psig inlet pressure, 100°F inlet air, and a 41°F dew point.
Common Questions
Frequently Asked Questions
- What does a refrigerated air dryer actually do?
- It chills the compressed air to condense out water vapor, then reheats the now-dry air and drains the liquid away. The result is air at a stable 41°F pressure dew point — dry enough to protect tools, piping, pneumatic controls, and finishing equipment from rust and water spotting.
- What does “non-cycling” mean?
- A non-cycling dryer runs its refrigeration circuit continuously and uses a hot-gas bypass valve to hold a constant dew point. That keeps the outlet dew point steady regardless of load swings, with no warm-up delay and none of the wet-air spikes that cycling (thermal-mass) dryers can produce when demand jumps.
- How do I size the ADS 175 to my compressor?
- Size the dryer above your compressor’s actual SCFM delivery, then correct for your real operating pressure, inlet air temperature, and ambient temperature — hotter or lower-pressure air needs a larger dryer. The ADS 175 is rated at 175 SCFM under standard conditions. Call or text 586-210-0555 with your compressor and shop conditions and CET will confirm the correct model.
- Do I still need filters with a refrigerated dryer?
- Yes. A coalescing pre-filter protects the dryer from oil and bulk liquid, and a particulate after-filter is recommended for finishing and instrument air. CET can spec the matching filtration — call or text 586-210-0555.
- What maintenance does it need?
- Keep the condenser clean and verify the automatic drain is discharging. The removable panels give tool-free access to internal components, and the DMC35 controller flags service conditions on its display.
All ADS Models
Find the Right ADS Dryer for Your Air System
The Schulz ADS series spans 10 to 480 SCFM across 14 capacities. Every model is CET Verified — backed by CET’s technical team. Not sure which fits your compressor? Ask for a CET sizing match.
| Model | Capacity | Connection | Power | Refrigerant | Best For | Order |
|---|---|---|---|---|---|---|
| ADS 10 | 10 SCFM | 3/8" NPT-F | 115V 1-PH | R134a | Small reciprocating / shop compressors | Order |
| ADS 15 | 15 SCFM | 3/8" NPT-F | 115V 1-PH | R134a | Small reciprocating / shop compressors | Order |
| ADS 20 | 20 SCFM | 1/2" NPT-F | 115V 1-PH | R134a | Small reciprocating / shop compressors | Order |
| ADS 35 | 35 SCFM | 1/2" NPT-F | 115V 1-PH | R134a | Light-commercial systems (~5-10 HP) | Order |
| ADS 50 | 50 SCFM | 1/2" NPT-F | 115V 1-PH | R134a | Light-commercial systems (~5-10 HP) | Order |
| ADS 75 | 75 SCFM | 1" NPT-F | 115V 1-PH | R134a | Light-commercial systems (~5-10 HP) | Order |
| ADS 100 | 100 SCFM | 1-1/4" NPT-F | 115V 1-PH | R134a | Industrial systems (~10-25 HP) | Order |
| ADS 125 | 125 SCFM | 1-1/4" NPT-F | 115V 1-PH | R407C | Industrial systems (~10-25 HP) | Order |
| ADS 150 | 150 SCFM | 1-1/2" NPT | 115V 1-PH | R407C | Industrial systems (~10-25 HP) | Order |
| ADS 175 | 175 SCFM | 1-1/2" NPT-F | 115V 1-PH | R407C | Industrial systems (~10-25 HP) | Current |
| ADS 220 | 220 SCFM | 1-1/2" NPT-F | 230V 1-PH | R407C | Large industrial systems (~30+ HP) | Order |
| ADS 300 | 300 SCFM | 2" NPT-F | 230V 1-PH | R407C | Large industrial systems (~30+ HP) | Order |
| ADS 375 | 375 SCFM | 2" NPT-F | 230V 1-PH | R407C | Large industrial systems (~30+ HP) | Order |
| ADS 480 | 480 SCFM | 2-1/2" NPT-F | 230V 1-PH | R407C | Large industrial systems (~30+ HP) | Order |
Capacities are rated at 100°F ambient, 100 psig inlet at 100°F, and a 41°F dew point. A refrigerated dryer should be sized above your compressor’s actual SCFM output — call or text 586-210-0555 for a CET sizing match.
Why Buy From CET
The CET Difference
- Over 20 years supplying industrial finishing and compressed-air equipment — we match customers to the right configuration the first time.
- Real technical support before and after the sale — call or text 586-210-0555 to reach CET’s technical team. For dryer sizing we recommend a quick call before ordering.
- Fast fulfillment on most in-stock orders — call or text 586-210-0555 to verify availability and your ship date.
- Verified compatibility — we stock the dryer, filters, and the matching air-system components so you are not waiting on back-ordered parts.
- The best order communication in the industry — updates at every step, and a heads-up in advance in the rare case of a delay.
Why Choose the ADS Series
Engineered for a Stable, Low-Maintenance Dew Point
- Alu-Dry module: combined air-to-air / air-to-refrigerant heat exchanger with integral condensate separator — high efficiency in a compact package.
- DMC35 digital controller: dew-point display, timed drain control, and condenser-fan management in one panel.
- Automatic timed condensate drain: quick-disconnect valve that clears liquid without special tools.
- Removable panels: immediate, tool-free access to internal components for inspection and service.
- High-efficiency refrigeration: R407C circuit with a low-power compressor for reduced operating cost.
Still Deciding
Not Sure Which Dryer Fits Your Compressor?
Call before you order. CET’s technical team has been specifying compressed-air dryers for over 20 years — in a 5-minute call we will confirm whether the ADS 175 is right for your compressor output, operating pressure, and shop conditions. Call or text 586-210-0555.
