American Dryer Corp AD-200 service manual

Page 60

3)24 VAC Transformer

The 24 VAC transformer consists of fuse 1 (F1) and fuse 2 (F2) which is the primary fusing for the transformer. For the proper rating of these fuses refer to the specific electric diagram. The transformer is located in the right hand electrical cabinet.

Dryer models with an optional Sprinkler System have an energizing stop relay which will disable the dryer functions (shut the dryer down) in the event of a fire. IF THE SPRINKLER SYSTEM IS NOT ENERGIZED (POWERED) THE DRYER WILL NOT OPERATE. The Energizing Stop Push Button is located on the front right electrical panel. On 2-Door models this Energizing Stop Push Button is located on the right rear side of the electrical panel (when viewed from the rear).

On dryer models manufactured for 208 volt or 240 volt electric service, the step down voltage for the Phase 5 microprocessor controller (computer) and the Programmable Logic Controller (PLC) is supplied from the primary side of the 24 VAC transformer. On dryers that are manufactured for 380 volts and higher, there is an additional secondary on the transformer that is used to supply the step down voltage required to operate the Phase 5 microprocessor controller (computer) and the Programmable Logic Controller (PLC) through fuse 4 (F4).

4)24 VAC Control Circuit

The secondary side of the 24 VAC transformer supplies 24 VAC to various control circuits through fuse 3 (F) and a 20-amp fuse or an 8-amp fuse (fuse amperage [rating] is dependent on the date that the dryer was manufactured).

The first circuit is the control voltage on/off. Control voltage ( 24 VAC) goes through the "Master Off" (normally closed) switch and supplies voltage to the "Master On" (normally open) switch. When the "Master On" switch is momentarily engaged, the master control relay (MCR) engages. This closes the MCR-A contactor (which is in parallel with the "Master On" switch) which will keep the MCR enabled. If the power is interrupted or the "Master Off" switch is pressed the MCR will disengage. The MCR-B contactor supplies power to the rest of the 24 VAC circuits.

For dryers manufactured with Automatic Doors - the supply air enables' purpose is to relieve pressure on the automatic door pistons when an energizing stop is engaged.

5)Safety Circuits

The following circuit branches are to verify various safeties, if ALL conditions are met ...

a)The first two (2) items are the Auxiliary Contact located on the blower (impellor/fan) motor and the Tumbler (basket) Motor Overload. If either of these devices trip, it will open up the safety circuit thereby preventing the dryer from operating.

b)Front Doors Closed circuit branch ...

There are two (2) magnetic proximity switches mounted in the door closed position and a magnet mounted on top of the doors. When this magnet aligns with the proximity switch, the contacts in the proximity switch close. When both doors are closed, the front doors closed relay (CR2) turns on ...

(1)There are two (2) sets of contacts in the relay... one (1) set of contacts are in the dry enable circuit branch and the other set go to the PLC input front doors closed.

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Contents Thru Retain This Manual In a Safe Place For Future Reference Page For Your Safety Table of Contents Section Cause Improper and Dangerous Operation Routine Maintenance Monthly Lubrication Adjustments Gas Installation Requirements Enclosure, Air Supply and Exhaust RequirementsOperational Service Check Procedure Electrical and Gas RequirementsComponent Description Heat Section24 VAC Direct Spark Ignition DSI Module Repairable ODPH/RVW Troubleshooting The Direct Spark Ignition DSI System Direct Spark Ignition DSI Troubleshooting Terms definitions Page Three Visual Checks Troubleshooting Flow Chart Quick Reference +9LUHPdqg Uhqwruli Troubleshooting/System Detailed Diagnosis RetriesIgnitor and Flame-Probe Assembly DSI Ignitor and Flame-Probe Assembly AdjustmentsPage Air Turbulence Serial numbers for the dryers Discontinue electrical power to the dryer Are Made of Brass and can be Easily DamagedPage Steam Coil System Operation General OverviewPage Page Page Page Sprinkler System Description Sprinkler Solenoid ValveRequire any adjustment Sprinkler System OperationPage Page HP Control Relay Replacement Supplies Before Servicing the DryerMAN3169 Air Jet Assembly Page Leave enough movement for V-belt adjustment Page Important do not Overtighten V-BELTS Important do not Overtighten V-BELTS Page Page Filter/Regulator Assembly Adjustment knob simply acts upon a spring rest locatedDoor Systems OperationDiscontinue electric service to the dryer Pneumatic Automatic Door Replacement or Removal Cable Cylinder Replacement or Removal Proximity Switch Replacement Right Load Door Glass Window ReplacementPage Control Electrical System Page Page Section Emergency Stop button pushedDrive motor is not operating does not start Blown drive motor and blower fan and impellor motor fuses Failed motors both blower fan/impellor motor and drive motor Failed microprocessor controller computer Dryer operates but is taking too long to dry Excessive noise and vibration Electrical Troubleshooting Door Circuit Theory of the Door Circuit Path of the Door CircuitDrive Motor Circuit Theory of the Drive CircuitPath of Voltage for the Drive Circuit J3 but now pin #8 on bothTheory of the Drive Circuit Blower Motor Circiut Theory of the Blower Motor CircuitPath of Voltage for the Blower/Fan Motor Circuit Theory of the Blower Motor Circuit Heat Circuit Gas Models Theory of the Heat Circuit GasPath of Voltage for the Heat Circuit Heat Circuit Steam Models Theory of the Heat Circuit SteamPath of Voltage for the Heat Circuit Steam Cycle Done Circuit Theory of the Cycle Done Circuit Path of Voltage for the Cycle Done CircuitPhase 5 OPL System Diagnostics Door indicates door switch circuit is openLED Display Indicators Heat Output LED IndicatorPage Door LED Indicator ADC450310 1- 07/28/99-25
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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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