J. PREOPERATIONAL TESTS

ALL dryers are thoroughly tested and inspected before leaving the factory. However, a preoperational test should be performed before the dryer is publicly used. It is possible that adjustments have changed in transit or due to marginal location (installation) conditions.

1.Turn on electric power to the dryer.

a.Open ALL shutoff valves (gas and steam models only).

2.Refer to the Operating Instructions for starting your particular model dryer.

3.Gas Dryers

a.When a gas dryer is first started (during initial start-up), it has a tendency not to ignite on the first ignition attempt. This is because the gas supply piping is filled with air, so it may take a few minutes for the air to be purged from the lines.

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

NOTE: Gas dryers are equipped with a Hot Surface Ignition (HSI) system which has internal diagnostics. If ignition is not established within three (3) times, the heat circuit in the HSI module will lockout until it is manually reset. To reset the HSI system, open and close the main door and restart the dryer.

b.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 pressure tap of the gas valve body):

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.

4.Steam Dryers

a. Check to insure that steam damper is functioning properly...

1)The steam damper should not "slam" (open or closed) when it reaches the end of (piston) travel. Additionally, the steam damper should not bind and/or stop during travel. If either of these conditions exist refer to air adjustment instructions in Section H.

35

Page 38 Page 40
Page 39
Image 39
American Dryer Corp ML-55HS installation manual Preoperational Tests
Page 38 Page 40

ML-55HS specifications

The American Dryer Corp ML-55HS is a high-performance hand dryer that offers efficient and effective drying solutions for commercial and public restrooms. Known for its innovative design and advanced technology, the ML-55HS is a popular choice among facility managers looking for a reliable and eco-friendly drying option.

One of the key features of the ML-55HS is its powerful motor. With a speed of up to 28,000 RPM, this hand dryer can dry hands in as little as 10 to 15 seconds, significantly reducing wait times in busy facilities. This high speed also helps to minimize energy consumption, making the dryer not only time-efficient but also cost-effective.

The dryer is equipped with a built-in HEPA filter that captures 99.97% of airborne particles down to 0.3 microns. This means that users can enjoy not only the convenience of a fast-drying hand-drying solution but also a hygienic one, preventing the spread of germs and bacteria in shared spaces. The HEPA filter is easy to replace, ensuring ongoing efficiency and cleanliness.

Another notable aspect of the ML-55HS is its adjustable speed and heat settings. This versatility allows users to customize their drying experience based on their preferences, ensuring optimal comfort for everyone—regardless of the season or environment. Such adaptability also helps to further conserve energy.

The design of the ML-55HS is both sleek and durable, made from high-quality materials that can withstand the rigors of daily use in high-traffic areas. Its vandal-resistant features, including a tamper-proof cover and concealed screws, ensure that the dryer maintains its integrity even in challenging environments.

Moreover, the ML-55HS operates quietly, making it suitable for environments where noise reduction is a priority. Its low sound levels contribute to an overall pleasant restroom experience for users, promoting peace and comfort.

With an array of finishes available, the machine can seamlessly blend into various restroom designs while providing an eco-friendly alternative to traditional paper towels. The ML-55HS not only enhances user experience but also supports sustainability efforts by significantly reducing paper waste.

In conclusion, the American Dryer Corp ML-55HS brings together speed, efficiency, hygiene, and durability in a compact design, making it an excellent choice for any facility aiming to improve their restroom's functionality while catering to modern demands.
Top Page Image Contents