PAU SERIES/Precision Air Conditioning Equipment/Local Air Conditioning Equipment

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Instant Precise Dry Air Unit

Instant Precise Dry Air Unit

Instant dehumidification of air humidity of up to -65%

The fusion of our own ideas and refrigerating technology. Our newly developed cooling/humidification cycle and MAX-DRY control system achieves up to -65% instant powerful dehumidification of air humidity with the cooling cycle alone. Provides amazing dehumidification performance in a variety of production facilities.

PAU-AZ2000SE-DR

Instantly provides dry air using only a cooler without circulating.

Instantly dehumidify high-humidity air with just one pass
Instantly dehumidify high-humidity air with just one pass

MAX-DRY Operation Method

Traditionally, it was difficult to achieve instant 65% dehumidification of air humidity with just the cooling cycle, but Apiste has developed its very own "MAX-DRY Operation Method" which draws out excellent dehumidification powers with only the cooling cycle.

PAU-W2600S-DR

Achieving low-temperature environments in all kinds of production facilities with amazing dehumidifying power.

Instant powerful dehumidification with the cooling cycle alone
Instant powerful dehumidification with the cooling cycle alone

Achieving dew-point temperature of 4℃

Controlling the electronic valve, it precisely controls the flow rate of hot gas coolant.
While continuously running the compressor, it achieves maximum dehumidification without ever freezing the cooling unit.
Draws out maximum dehumidification power
Draws out maximum dehumidification power

MAX-DRY Control

We've developed this extreme dehumidification algorithm which draws out amazing power just before freezing the cooling unit and continues to operate while avoiding electrical overload. Constantly monitoring coolant temperature at the entrance to the cooling unit and the temperature at the admission port to the compressor, once either of those goes under the temperature limit each unit executes precise and real control via hot gas coolant through an electronic valve. It achieves ultimate dehumidification by continuously maintaining the cooler unit's condensation limit point.
Able to continuously supply low-humidity air with one pass

Supplied air volume 8m3

Effective at supplying low-humidity air for production processes using powders/organic solvents.

Wide range-compatible

Wide range-compatible

Wide range-compatible

Coolant water temperature 5℃~35℃

the temperature of the coolant water cooling the condenser, for normal refrigeration cycles, is generally 15℃~30℃. Dropping below that causes the cooling unit to become supercooled and freeze, which was a problem. With Apiste's newly developed refrigeration cycle and MAX-DRY control, we've achieved wide range compatibility for coolant temperature ranges of 5℃~35℃.
14-bit temperature and humidity sensor
14-bit temperature and humidity sensor

Able to acquire high quality digital temperature and humidity data

With the seamless construction combining calibrated, digital data-retrieving temperature and humidity sensors and a 14-bit A/D converter with each sensing device, external noise influence is extremely reduced. You can retrieve high quality digital temperature and humidity data.
LAN cable compatible
LAN cable compatible

Making connection simple

The sensor head and cable can be easily connected. You can also decide on the head position and attach a cable later. Cable length can also be adjusted freely.
The limits of dehumidification with general air conditioning equipment
For dehumidification with general air conditioning equipment, coolant pressure is adjusted to make surface temperature 7℃ in order to keep the refrigeration coil from freezing. This causes dew point of blown air to be approximately 11℃~12℃, and dehumidification under that dew point is impossible.
General Air Conditioning W2600S-DR
Dew Point Approx. 12℃ 4℃

With general air conditioning, the dew point is limited to approximately 12℃. Apiste's MAX-DRY control makes dehumidification possible at a dew point of 4℃.
At 23℃, these become 50% and 30% respectively, with a difference of approximately 20%.

The limits of dehumidification with general air conditioning equipment

Comparison with dehumidifying rotor system (chemical adsorption)
Comparison with dehumidifying rotor system (chemical adsorption)
Dehumidification
Rotor system
W22600S-DR
Refrigeration coil Large Small
Initial Large Small
Exhaust heat Yes No

With rotor systems, seen often in large-size dehumidification equipment, moisture is adsorped into discotic silica gel which is then heated by a heater, causing a lot of exhaust heat. Also, running costs increase due to the recooling of that exhaust heat, etc.

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