Refrigerated Air Dryer, Refrigerant R407C (HFC) Standard Temperature Air Inlet, IDFA□E Series

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*The information above is correct as of December 2018. - See catalog for specification details.
- Product images may be representative images. Refer to the manufacturer's catalog for shape details.
Product Description
Refrigerated air dryer with improved corrosion resistance due to the use of a stainless-steel heat exchanger.
[Features]
· Power supply voltage: Single-phase 230 V AC (50 Hz).
· Auto drain: Float type (normally open).
· Coating color: Body panel: urban white 1, Base: urban gray 2.
· Compliant standards: EC directive (CE marking).
Refrigerant R407C (HFC) Series IDFA□E Specifications

JIS symbol
Size
- 22E
- 37E
- 55E
- 75E
Standard Specifications
| Specifications | Model | ||||||
|---|---|---|---|---|---|---|---|
| Standard-temperature air inlet | |||||||
| IDFA22E | IDFA37E | IDFA55E | IDFA75E | ||||
| Operating range*3 | Applicable fluid | Compressed Air | |||||
| Inlet air temperature (°C) | 5 to 50 | ||||||
| Inlet air pressure (MPa) | 0.15 to 1.0 | ||||||
| Ambient temperature (humidity) (°C) | 2 to 40 (Relative humidity of 85% or less) | ||||||
| *4 | Air flow capacity m3/h | Standard condition (ANR)*1 | Outlet air pressure dew point 3°C | 182 | 273 | 390 | 660 |
| Outlet air pressure dew point 7°C | 231 | 347 | 432 | 720 | |||
| Outlet air pressure dew point 10°C | 254 | 382 | 510 | 822 | |||
| Compressor intake condition*2 | Outlet air pressure dew point 3°C | 189 | 284 | 405 | 686 | ||
| Outlet air pressure dew point 7°C | 240 | 361 | 449 | 748 | |||
| Outlet air pressure dew point 10°C | 264 | 397 | 530 | 854 | |||
| Inlet air pressure (MPa) | 0.7 | ||||||
| Inlet air temperature (°C) | 35 | ||||||
| Ambient temperature (°C) | 25 | ||||||
| Power supply voltage | Single-phase 230 V AC (Voltage fluctuation ±10%) 50 Hz | ||||||
| Electric specifications | Power consumption*6 (W) | 760 | 1,390 | 1,700 | |||
| Operating current*6 (A) | 4.3 | 6.1 | 7.9 | ||||
| Applicable circuit breaker capacity*5 (A) | 10 | 20 | |||||
| Condenser | Air-cooled | ||||||
| Refrigerant | R407C (HFC) | ||||||
| Refrigerant charge (kg) | 0.42 | 0.73 | 0.55 | 0.67 | |||
| Port size | R1 | R1 1/2 | R2 | ||||
| Accessories | - | ||||||
| Weight (kg) | 54 | 62 | 100 | 116 | |||
*1: ANR is the value at 20°C, atmospheric pressure and relative humidity 65%.
*2: Indicates the air flow capacity converted by the compressor intake condition (at 32°C, atmospheric pressure, relative humidity 75%).
*3: The operating range does not guarantee use at rated air flow capacity.
*4: If the operating conditions differ from the rating, select the model referring to "Model Selection" in the manufacturer's catalog.
*5: Products without option R do not come with a circuit breaker. Purchase a circuit breaker separately.
*6: These are characteristic values under rated conditions and are not guaranteed. Do not use these as thermal setting values, etc.
*7: When a short-term interruption of the power supply (including momentary interruption) occurs in this equipment, the restarting of normal operations may require some time or may be impossible due to the operation of protective devices even after the supply of power returns.
Dimensions
(Unit: mm)

Dimensional drawing: IDFA22E/IDFA37E
(Unit: mm)
| Model | Piping connection port diameter | A | B | C | D | E | F | G | K | L | M | N | P |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IDFA22E | R1 | 290 | 775 | 623 | 134 | 405 | 698 | 93 | 13 | 25 | 85 | 600 | 340 |
| IDFA37E | R11/2 | 855 | 680 |
(Unit: mm)

IDFA55/IDFA75E dimensional drawing
(Unit: mm)
| Model | Piping connection port diameter | A | B | C | D | E | F | G | K | L | M | N | P | Q | R |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IDFA55E | R2 | 470 | 855 | 800 | (128) | (273) | (868) | (110) | 13 | 500 | 75 | 700 | 526 | (110) | 519 |
| IDFA75E | 900 | (968) |
Structure Principle Diagram (Air/Refrigerant Circuit)

Structure Principle Diagram
Humid, hot air coming into the air dryer is cooled down by a cooler re-heater (heat exchanger). Water condensed at this time will be drained out automatically by the auto drain. Air separated from the water is heated by a cooler re-heater (heat exchanger) to obtain the dried air, which goes through to the outlet side.
Precautions
- *The images for this product are representative images.
- *See the manufacturer's catalog for product information other than the above.