Next reverse leads to temp sensor black to black and red to white. At that point you’ll measure approximately 1.8 amps this is the turn on voltage of the device. If you hold the temp sensor in your hands and warm it the reading will decrease corresponding to a higher current flow (the decrease is very slight tenths of a volt).

2)The Rotational Sensor is a magnetic proximity switch that is mounted on the tumbler (basket) wrapper on the left side of the dryer. There is a magnet mounted to the side of the tumbler (basket). After each rotation of the tumbler (basket), the magnet passes by the proximity switch causing the contacts to close and pulse the Phase 7 microprocessor controller (computer). Whenever the magnet is over the proximity switch there should be contact closure.

When a drying cycle is started, the blower (fan and impellor) output switches on putting 24 VAC on the blower (fan and impellor) contactor coil, which in turn pulls in the contactor starting the blower motor turning. Through the contactor relay this also triggers an input signal to the PLC (Programmable Logic Controller) disabling the tilting function. Moments later, the tumbler (basket and drum) begins to rotate because the output turns on thereby pulling in the tumbler (basket and drum) forward contactor. Next, the Heat “On/Off” output will turn on if there is a call for heat, suppling 24 VAC to the heat circuit through the safety circuits.

a)The first safety circuit is the Manual Reset Exhaust Hi-Limit which is located on the bracket above the lint basket with the temperature sensor. On a temperature rise of 225º F (107º C) or higher, the thermal switch opens breaking the heat circuit.

b)A second safety circuit is the Manual Reset Burner Hi-Limit Switch located on the side of the burner. On a temperature rise of 330º F (166º C) or higher, the thermal switch opens breaking the heat circuit, this switch must be manually reset.

c)A third safety circuit is the Sail Switch which is attached to the front of the burner box. This device pulls in when the impellor (fan and blower) is operating correctly and verifies proper airflow.

If ALL the safeties are properly maintained, 24 VAC will enable the Direct Spark Ignition (DSI) Module and a try for ignition begins. The DSI module induces a spark (at the spark electrode) and then opens (energizes) the gas valve for 8-seconds attempting to light the burner. If after 8- seconds the burner does not light off DSI module will go into a “LOCKOUT” Mode (the gas valve will be de-energized and the spark will be removed from the ignitor) and will not try to light the burner again until power is again cycled to the DSI module. If the spark produces a flame then a microamp signal is created between the flame-probe and ground which in turn will keep the burner on. The Heat “On or Off” output cycles the heat unless there is a fault at a safety sensor. At the end of a cycle the air jet output turns on to clean off the impellor fan. The audio alert output energizes the 24 VAC Audio Alert horn mounted on the right door, the end of cycle output energizes the 24 VAC End of Cycle light found on the top of the front panel.

b.PLC (Programmable Logic Controller)

1)The PLC (Programmable Logic Controller) can consist of one (1) or two (2) modules; a main module and in some cases an expansion module is used for additional inputs and outputs.

NOTE: The information listed on page 80 is generic in nature, refer to blueprints for specific details.

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American Dryer Corp AD-200 PHASE 7 service manual PLC Programmable Logic Controller
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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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