American Dryer Corp ML-175DR installation manual Fire Suppression System Theory of Operation

Models: ML-175DR

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FIRE SUPPRESSION SYSTEM THEORY OF OPERATION

While the dryer is in an idle state, or 20-seconds after the heat turns off, the Phase 7 microprocessor controller (computer) monitors the thermistor probe, located in the top of the basket (tumbler) chamber, and records the minimum temperature. If the minimum recorded thermistor probe temperature is greater than 120° F (48° C) and the microprocessor controller (computer) detects a 50° rise in temperature, this will be the trip point and the fire suppression system routine will activate.

While a drying cycle is in process and the heat has turned on at least once, the Phase 7 microprocessor controller (computer) monitors the exhaust temperature transducer. If the drying cycle temperature set point is set greater than 160° F (71° C) and the microprocessor controller (computer) detects an exhaust temperature rise 25° F greater than set point, this will be the trip point and the fire suppression system routine will activate. If set point is below 160° F (71° C), the trip point will be 185° F (85° C).

Once the fire suppression system routine is activated, the microprocessor controller (computer) will display “F.S.S. ACTIVATED” and water will be injected into the basket (tumbler) chamber. Any time water is being injected into the basket (tumbler), the basket (tumbler) drive will turn the load for 1-second every 15-seconds. This process will continue for a minimum of 2 minutes. After the 2 minutes have elapsed, the microprocessor controller (computer) will check if the temperature remained above trip point; if so, the water will remain on. The microprocessor controller (computer) will continue to check if the temperature is above trip point every 30-seconds. If the water has been on for a constant 10 minutes, the water will be turned off, regardless of the temperature, and the microprocessor controller (computer) will display “F.S.S. WAS ACTIVATED.” If the temperature has dropped below trip point, the microprocessor controller (computer) will turn off the water prior to 10 minutes.

SYSTEM RESET

After the microprocessor controller (computer) determines that the situation is under control and shuts the water being injected into the basket (tumbler) off, the microprocessor controller (computer) display will read “F.S.S. WAS ACTIVATED,” and the horn/tone will sound until reset manually.

To reset the microprocessor controller (computer) once the microprocessor controller (computer) displays “F.S.S. WAS ACTIVATED,” press the red “STOP/CLEAR” key on the keypad.

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American Dryer Corp ML-175DR installation manual Fire Suppression System Theory of Operation

ML-175DR specifications

American Dryer Corp ML-175DR is a high-efficiency, state-of-the-art hand dryer designed to provide a superior drying experience in public restrooms and commercial environments. With its sleek and modern design, the ML-175DR not only enhances the aesthetic appeal of any facility but also offers numerous practical benefits.

One of the standout features of the ML-175DR is its powerful motor, which generates a strong airflow of up to 17,000 RPM. This ensures that hands are dried quickly and effectively, taking only about 10 to 15 seconds to achieve optimal dryness. This efficiency significantly reduces waiting time for users, making it a convenient choice for high-traffic areas.

The ML-175DR incorporates advanced sensor technology that allows for touchless operation. The built-in infrared sensors detect the presence of hands beneath the nozzle, automatically activating the drying process. This feature not only promotes hygiene by minimizing contact with surfaces but also helps conserve energy, as the dryer only operates when needed.

Another noteworthy characteristic of the ML-175DR is its eco-friendly design. It is constructed with energy-efficient components that use significantly less power compared to traditional hand dryers. This not only reduces electricity costs but also supports sustainability efforts by minimizing the carbon footprint associated with restroom facilities.

Moreover, the ML-175DR includes an adjustable airspeed feature, allowing users to customize their drying experience according to different environments. Whether it’s a busy restaurant or a quiet office, the adjustable settings enable optimal performance tailored to the specific needs of each location.

In terms of durability, the ML-175DR is built with heavy-duty materials that ensure longevity, making it a reliable choice for various commercial and public settings. Its robust construction is resistant to wear and tear, which is essential for hand dryers that see frequent use.

In summary, the American Dryer Corp ML-175DR stands out for its powerful yet efficient drying capabilities, touchless operation, eco-friendly design, adjustable airspeed, and durable construction. These features make it an excellent choice for modern facilities looking to enhance hygiene, improve user experience, and promote sustainability.