4.Steam Damper Air System Connections

The dryer is manufactured with a pneumatic (piston) damper system, which requires an external supply of compressed air of 0.75 cfh (0.02 cmh). The air connection is made to the steam damper solenoid valve which is located at the rear inner top area of the dryer just above the electric service relay box (refer to the bottom illustration on page 34).

a. Air Requirements

COM PRESSED

AIR PRESSURE

AIR SUPPLY

 

 

Normal

80 PSI

5.51 bar

 

 

 

Minimum Supply

70 PSI

4.82 bar

 

 

 

Maximum Supply

90 PSI

6.21 bar

 

 

 

Shaded areas are stated in metric equivalents

b.Air Connection

Air connection to system --- 1/8” N.P.T.

c.No air regulation or filtration is provided with the dryer. External regulation/filtration of 80 PSI (5.51 bar) must be provided. It is suggested that a regulator/filter gauge arrangement be added to the compressed air line just before the dryer connection. This is necessary to insure that correct and clean air pressure is achieved.

5.Steam Damper System Operation

The steam damper, as shown in the top illustration on page 34, allows the coil to stay constantly charged eliminating repeated expansion and contraction. When the damper is opened, the air immediately passes through the already hot coil, providing instant heat to start the drying process. When the damper is closed, ambient air is drawn directly into the basket (tumbler), allowing a rapid cool down.

Diagram 1 -- shows the damper in the heating (open) mode, allowing heat into the basket (tumbler).

Diagram 2 -- shows the damper in the cool down (closed) mode, pulling ambient air directly into the basket (tumbler) without passing through the coils.

NOTE: With the dryer off or with no air supply, the damper is in the cool down mode as shown in Diagram 2.

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American Dryer Corp AD-120ES III installation manual COM Pressed AIR Pressure AIR Supply
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AD-120ES III specifications

The American Dryer Corp AD-120ES III is a high-performance, energy-efficient hand dryer designed for commercial environments where durability and hygiene are key requirements. This model combines advanced technology with user-friendly features to deliver a superior drying experience.

One of the standout features of the AD-120ES III is its powerful 1.1 horsepower motor, which allows the dryer to deliver a high-speed airflow of approximately 200 miles per hour. This rapid drying capability significantly reduces drying time, ensuring that users have a quick and effective way to dry their hands. Additionally, the dryer operates quietly, making it suitable for environments where noise control is important, such as offices, restaurants, and educational institutions.

Energy efficiency is another hallmark of the AD-120ES III. The unit is equipped with an energy-saving mode that can reduce power consumption by up to 85%. This feature not only helps to conserve energy but also contributes to lower operating costs, making it an eco-friendly choice for businesses. The dryer’s electronic sensor technology ensures that it activates only when hands are underneath, further enhancing its efficiency.

The design of the AD-120ES III emphasizes hygiene and cleanliness. With a touchless operation, users can dry their hands without needing to touch any surface, reducing the risk of cross-contamination. The dryer also features a high-quality HEPA filtration system that captures 99.97% of particles as small as 0.3 microns from the air that passes through it, ensuring that the air used for drying is clean and safe.

Durability and ease of maintenance are also key characteristics of the AD-120ES III. Constructed from robust stainless steel, this hand dryer is designed to withstand the rigors of high-traffic environments. Its easy-to-remove cover allows for straightforward maintenance, making it simple to keep the unit in optimal working condition.

In summary, the American Dryer Corp AD-120ES III is a reliable and effective choice for commercial hand drying solutions. With its powerful motor, energy-saving features, touchless operation, and high-quality filtration, it meets the needs of both users and facility managers looking for efficiency, hygiene, and reliability. The combination of advanced technology and thoughtful design makes the AD-120ES III a leading option in the hand dryer market.
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