e.The Manual Reset Tumbler (Basket) Hi-Limit Switch is a thermostat type switch located above the Lint Basket. Its function is to discontinue heat (flame) in the event of an over temperature situation (above 225º F [107º C]).

f.The gas valve used in the ADG-200 is of the redundant type which means that the gas valve is actually two (2) gas valves in one; one (1) in series with the other. This is a safety feature which provides protection against gas flow in the event that one

(1) of the valves does not seat properly. The valve also regulates the incoming gas pressure.

NOTE: THE DSI GAS VALVES ARE NOT FIELD REPAIRABLE.

MAN3484

225º F (107º C) Thermostat

Redundant Gas Valve

g.Normal Operation of the Direct Spark Ignition (DSI) System (refer to the illustration on page 17).

1)The DSI System consists of a microprocessor-based control module, along with an Ignitor/Flame- Probe Assembly. This control utilizes a high voltage synchronous spark ignitor and a rectified flame sensor probe signal to locally control ALL basic functions in the gas burner.

On a call for heat by the dryers’ controls, 24 VAC is applied to the DSI module at which time the modules’ L.E.D. (light emitting diode) indicator will light “red” indicating that power has been established to the module. Almost immediately (up to approximately 1.5-seconds [prepurge]) the indicator will light “green,” the gas valve opens and the spark burst will be evident (on) for approximately 8-seconds. The burner flame should now be established/confirmed.

If at this time the flame has not been established and confirmed, the DSI module will “LOCKOUT” and the modules’L.E.D. indicator will light “red” and stay on continuously. “Burner Ignition Control Fault” will display. To clear this fault press the “CLEAR/STOP” key.

Once the burner flame is established and confirmed, the DSI module indicator will light “green,” and the burner system will continue through a normal heating cycle, where the DSI system will cycle on and off as required by the dryers controls.

During the normal heating cycle, should a “FLAME-OUT” occur (i.e., severe air turbulence forces the flame away from the Ignitor/Flame-Probe Assembly), the DSI module will shut the gas valve off and immediately try to reestablish the burner flame. The DSI module will attempt to light the burner ONLY ONCE. If flame is not established, the DSI module will “LOCKOUT” and “Burner Ignition Control Fault” will display. To clear this fault press the “CLEAR/STOP” key.

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American Dryer Corp AD-200 PHASE 7 service manual 225º F 107º C Thermostat Redundant Gas Valve
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AD-200 PHASE 7 specifications

American Dryer Corp (ADC) has long been a leader in the laundry equipment industry, and its AD-200 PHASE 7 model is a testament to the company's commitment to innovation and efficiency. Designed for commercial applications, the AD-200 PHASE 7 is a high-performance dryer that sets a new standard for drying technology in laundromats, hotels, and other laundry facilities.

One of the standout features of the AD-200 PHASE 7 is its advanced drying system that utilizes a powerful, high-efficiency motor. This motor works in conjunction with a unique airflow design, ensuring that clothes dry quickly and evenly while minimizing energy consumption. The dryer is built to handle large loads, making it an ideal choice for busy commercial environments where efficiency is crucial.

The AD-200 PHASE 7 incorporates state-of-the-art technology to optimize the drying process. It features a microprocessor control system that allows operators to customize drying cycles based on the specific needs of different fabrics. This system not only enhances the user experience by providing precise control but also helps protect garments from over-drying and damage. Additionally, the dryer boasts multiple temperature settings, allowing users to choose the best drying conditions for each load.

Another key characteristic of the AD-200 PHASE 7 is its durable construction. Built with high-quality materials, including reinforced stainless steel, this dryer is designed to withstand the rigors of daily use in a commercial setting. Its robust design not only extends the lifespan of the equipment but also reduces the need for frequent maintenance, which can be a significant cost-saving benefit for businesses.

Energy efficiency is another aspect where the AD-200 PHASE 7 excels. It is equipped with an efficient heat exchange system that recycles hot air during the drying process, reducing energy consumption without compromising performance. This feature contributes to lower utility bills, making it a more sustainable option for businesses looking to improve their environmental footprint.

In conclusion, the American Dryer Corp AD-200 PHASE 7 is a powerful, efficient, and durable commercial dryer that meets the demands of high-volume laundry operations. With its advanced technological features, customizable controls, and energy-saving capabilities, the AD-200 PHASE 7 not only enhances operational efficiency but also provides excellent value for commercial laundry providers. Businesses looking to invest in reliable drying solutions will find the AD-200 PHASE 7 an outstanding choice.
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