1. Direct Spark Ignition (DSI) Troubleshooting Terms (definitions)

a. DSI MODULE "RED" L.E.D. INDICATOR LIGHT - this "red" L.E.D. (liquid emitting diode) light is located in the upper right corner of the DSI module (refer to the top illustration on page 12). This is a diagnostic indicator that simplifies the operational and troubleshooting procedures of the DSI system.

b.LOCK-OUT MODE - DSI module "red" L.E.D. indicator light stays on continuously. This indicates there is a system fault and most likely the fault is the DSI module itself.

c.FLAME-OUT -burner flame shut down by the DSI module due to lack of flame verification. This condition occurs only after ignition is evident but is lost. The DSI system will immediately attempt to relight the burner.

d.RECYCLE - flame has been sensed but lost. Initiate a new sequence (THERE ARE NO RETRIES).

2.Troubleshooting and System Basic Diagnosis

a.Preliminary Steps

The following steps must be preformed to minimize the time required to isolate cause of fault.

1)DSI module L.E.D. indicator light is off (no "red" light or no "green" light).

a) Check for voltage (approximately 24 VAC) across the

DSI model terminals "TH" and "GND...

If voltage (approximately 24 VAC) is evident, then, there is a malfunction within the DSI module itself, and it must be replaced.

If there is no voltage, and then problem is not the DSI module or the ignition system, then the problem else- where in the dryer (i.e., dryers' heat circuit [sail switch, hi-limit circuits, etc.]).

2)DSI module L.E.D. indicator lights "red" for approximately 1.5 seconds (prepurge). This indicates that ALL the controls (including ALL the safety circuits) are functioning and power is being supplied to the DSI module.

a)DSI module L.E.D. indicator lights "green." This indicates a normal heating cycle. This also indicates that the preliminary diagnostics of the module has confirmed that the DSI module is functional.

b)DSI module L.E.D. indicator lights "red" continuously... LOCK OUT MODE. This indicates that there is a system fault and most likely the fault is internal to the DSI module. To make sure, open and close the main door. Restart the dryer ... if the module LOCKS-OUT ("red" L.E.D. indicator light stay on continuously) again, replace the DSI module.

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American Dryer Corp AD-200 service manual Direct Spark Ignition DSI Troubleshooting Terms definitions
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AD-200 specifications

The American Dryer Corp AD-200 is a renowned commercial dryer that stands out in the market for its efficiency, performance, and durability. Designed for high-demand environments such as laundromats, hotels, and gym facilities, the AD-200 delivers robust performance while maintaining user-friendly operation.

One of the standout features of the AD-200 is its capacity. With a generous drum size, this dryer can handle large loads, making it ideal for businesses with heavy laundry demands. This not only maximizes productivity but also allows users to process more laundry in less time, which is crucial in high-turnover environments.

The AD-200 employs advanced drying technologies that promote faster drying times while minimizing energy consumption. Its innovative airflow design ensures even heat distribution throughout the drum, allowing laundry to dry uniformly without hot or cold spots. This feature enhances drying efficiency and helps in preserving the quality of fabrics, reducing wear and tear over time.

Energy efficiency is a key characteristic of the AD-200. It is equipped with an EcoDry system that optimizes the drying process, significantly reducing operating costs. This technology monitors moisture levels in the drum and adjusts drying times accordingly. By preventing excess energy use, the EcoDry system not only helps in saving on utility bills but also aligns with environmentally responsible practices.

The AD-200 is built for reliability and longevity. Constructed with high-quality materials, it features a heavy-duty stainless steel drum that resists scratches, dents, and corrosion. Additionally, the unit’s design incorporates easy access for maintenance and service, which can drastically reduce downtime and operational disruptions.

In terms of user-friendliness, the AD-200 comes with a simple control interface that allows operators to select drying cycles with minimal effort. The intuitive controls and clear display make it accessible for all staff members. The dryer also includes adjustable drying times and temperatures, giving users flexibility to cater to different fabric care requirements.

Overall, the American Dryer Corp AD-200 is a steadfast solution for commercial laundry applications. Its combination of capacity, efficiency, and durability makes it a preferred choice among business owners looking to enhance their laundry operations while keeping costs manageable. With cutting-edge technology and user-centric design, the AD-200 stands as a reliable asset in the realm of commercial drying solutions.
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