2)The dryer is equipped with a Direct Spark Ignition (DSI) system, which has internal diagnostics. If ignition is not established after the first attempt, the heat circuit DSI module will “LOCKOUT” until it is manually reset. To reset the DSI system, open and close main door and restart dryer (press the “ENTER/START” key).

NOTE: During the purging period, check to be sure that ALL gas shutoff valves are open.

3)Once ignition is established, a gas pressure test should be taken at the gas valve pressure tap of each dryer to assure that the water column (W.C.) pressure is correct and consistent.

NOTE: Water column pressure requirements (measured at the gas valve pressure tap)...

Natural Gas ---------------------- 3.5 inches (8.7 mb) water column.

Liquid Propane (L.P.) Gas ----- 10.5 inches (26.1 mb) water column.

IMPORTANT: There is no regulator provided in an L.P. dryer. The water column pressure must be regulated at the source (L.P. tank) or an external regulator must be added to each dryer.

b.Electric Models

1)Check the oven contactors to insure that the electric oven is cycling properly.

c.Steam Models

1)Check to insure that steam damper is functioning properly.

a)The steam damper should not “slam” (open/closed) when it reaches the end of (piston) travel. Additionally, the steam damper should not bind or stop during travel. If either of these conditions occur, the flow control must be adjusted. (Refer to the Cool Down Mode in top illustration on page 34 for air adjustment instructions.)

6.Make a complete operational check of ALL safety related circuits (i.e., lint drawer switch and sail switch on gas models).

NOTE: To check for proper sail switch operation, open the main door and while holding main door switch plunger in, start dryer. Dryer should start but heat circuit should not be activated (on). If heat (burner) does activate, shut the dryer off and make necessary adjustments.

7.Reversing basket (tumbler) dryers should never be operated with less than a 79 lb (35.4 kg) load (dry weight), since the load’s weight affects basket (tumbler) coast time during a direction reversal command. It is important that the basket (tumbler) come to a complete stop prior to starting in opposite direction.

a. Microprocessor Controller (Computer) Dryer Models

1)Spin and dwell (stop) times are not adjustable in the Automatic Mode and have been preprogrammed into the microprocessor controller (computer) for a 120-second spin time and a 5-second dwell (stop) time.

2)Spin and dwell (stop) times are adjustable in the Manual (Timed) Mode.

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American Dryer Corp AD-120ES III installation manual
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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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