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Aircel CDP Series Critical Dew Point
Heatless Desiccant Air Dryer

70 - 1,250 scfm
The CDP Series provides a low dew point in a heatless, regenerative desiccant air dryer. Designed to ensure -100°F dew point for critical applications. Great for critical dew point industries such as semi-conductors, cryogenics, and medical devices. Pre and after filters included as standard with each model.

• Capacity rated @ 100 psig, 100°F inlet temperature, 100°F ambient temperature, and a PDP of -100°F
• Call Mdi to confirm sizing for various pressures and temperatures
• NEMA 4 standard.
• Mounted pre-filter and after filter included in price.
• Inlet air temperature: 40°F to 100°F.
• Max design pressure: 200 psig (models 70 to 600); 150 psig (models 750 to 1,250)

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   Model
Catalog Order
Number
Capacity
Voltage
Connection
CDP-70
AG9930140
70
115-1-60
1" NPT
CDP-100
AG9930160
100
115-1-60
1" NPT
CDP-150
AG9930170
150
115-1-60
1½" NPT
CDP-200
AG9930180
200
115-1-60
1½" NPT
CDP-250
AG9930190
250
115-1-60
2" NPT
CDP-300
AG9930200
300
115-1-60
2" NPT
CDP-350
AG9930210
350
115-1-60
2" NPT
CDP-450
AG9930220
450
115-1-60
2" NPT
CDP-500
AG9930230
500
115-1-60
2" NPT
CDP-600
AG9930240
600
115-1-60
3" FLG
CDP-750
AG9930250
750
115-1-60
3" FLG
CDP-1000
AG9930260
1,000
115-1-60
3" FLG
CDP-1250
AG9930270
1,250
115-1-60
3" FLG

➤Click Here for Capacity Correction Factors Chart

How It Works

• Compressed air flows through the pre-filter to remove oil and then enters the on-line Tower 1 through valve (A).

• Air moves upward, where the desiccant removes moisture from the air stream. The majority of clean, dry compressed air exits valve (B) and cycles through the after filter to then flows downstream.

• During the drying process, a small amount of the clean air exiting valve (B) travels to Tower 2 (shown in regeneration mode) to assist in the regeneration process

• To regenerate Tower 2, valve (C) opens and the tower is depressurized to near atmospheric pressure. The air flowing from valve (B) moves down the tower, removing moisture from the desiccant bed. Once it travels to the bottom of Tower 2, it exits the tower through valve (C) and the exhaust muffler to ambient.

• Once Tower 2 is fully regenerated, valve (C) will close, repressurizing Tower 2 to line pressure with the slight airflow coming through valve (B).

• Next, valve (D) will open to depressurize Tower 1 and valve (A) will switch (not pictured), directing wet incoming air to Tower 2 for drying while Tower 1 is regenerating the desiccant bed.

• This process will repeats continuously every 5 minutes unless the Energy Management System is extending drying time period during low load conditions to a maximum of 30 minutes each cycle. The Energy Management System continually monitors the mid-bed humidity level in the drying tower to save energy by extending the drying cycle (up to 30 minutes).
How Aircel CDP Series Works


Recommended Installation




Optional Equipment
• Remote start/stop control
• Stainless steel desiccant supports and air diffusers to prevent channeling
• Counter current regeneration, upflow drying, and downflow depressurization
3/16" premium grade F200 activated alumina high capacity desiccant for pressure dew point performance
• Easy installation with single point connection for electrical supply power and inlet/outlet air connections
• Dry relay contact alarm for remote indication of system alarms
• Adjustable (5 & 10 minute) NEMA cycle
• Standard communication through RS-232/RS-485 combo port




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Model
Weight (lbs)
Height (in)
Width (in)
Depth (in)
CDP-70
490
75
30
24
CDP-100
560
75
30
24
CDP-150
870
85
34
24
CDP-200
990
86
46
30
CDP-250
1,020
87
46
30
CDP-300
1,140
87
46
30
CDP-350
1,250
89
50
30
CDP-450
1,450
89
50
30
CDP-500
1,850
90
50
30
CDP-600
2,800
94
60
40
CDP-750
4,000
94
70
40
CDP-1000
4,600
94
70
40
CDP-1250
5,800
109
82
50