American Dryer Corp AD-30, AD-25 service manual Static Pressure, ILLUS. #1

Page 62

E. STATIC PRESSURE

The pressure of the air in sheet metal ducts is of great importance for safe and efficient operation of the dryer. The air pressures, as small as they are, have a large influence upon the performance of the dryer. There are three (3) pressures present within a duct. The velocity pressure, which is the pressure due to the moving stream of air, the static pressure, which is the outward push of the air against the walls of the duct, and the total pressure, which is the sum of the static and velocity pressures. Only the total and static pressures can be measured. The velocity pressure is then calculated from the difference between the two. The static pressure is the most influential and determining factor in the design of a dryer duct system. ADC recommends that the dryer exhaust duct static pressure not exceed 0.3 inches (0.74 mb) of water column (W.C.).

Gages used to measure such small air pressures utilize the elevation of a column of water. This form of gage is called a manometer. One form of this gage is known as a U-tube and is shown in Illustration #1. When one end of the tube is connected to the duct, the static (outward) pressure within the duct forces the water column to be depressed in one leg of the U-tube and up in the other. The elevation of the water column in Illustration #1 is 3.2 inches (8 mb).

ILLUS. #1

62

American Dryer Corp.

450268-1

Page 61 Page 63
Image 62
Page 61 Page 63
Contents AD-25, 30, 50, 75 Phase 7.2 Non-Coin Retain This Manual in a Safe Place for Future Reference Table of Contents Safety Precautions Explosion could ResultRoutine Maintenance CleaningAdjustments LubricationInstallation Requirements ENCLOSURE, AIR SUPPLY, and Exhaust RequirementsElectrical and GAS Requirements Operational Service Check Procedure Control BOX Computer Controls Main Door SwitchControl Panel Microprocessor Tumbler Lint Drawer SwitchLint Drawer Drive Motor and Blower Motor Tumbler Bearing and Pulley ArrangementIdler Bearing Steam Damper System Temperature Sensor Computer ControlsGAS Burner Electric Oven Sail Switch Electric and GAS ModelsCompressed AIR Requirements Reversing Relay Panel Motor Contactor 1Ø MOT orNON-REVERSING Contactor 3Ø MOT or HI-LIMIT Thermostat GAS and Electric Models only To Replace Control Panel Assembly Controls ComputerTo Replace Computer To Replace Keypad Refer to illustration aboveTo Replace Computer Temperature Sensor Probe To Replace Motor Contactor 3-POLE, 24 VACBurner Controls GAS To Replace Spark IgnitorTo Replace Main Burner Orifices To Test and Adjust GAS Water Column W.C. PressureTo Replace GAS Valve American Dryer Corp 450268-1 To Convert from Natural to Liquid Propane L.P. GAS Are Made of BRASS, Which is Easily DamagedTo Replace Burner Tubes To Replace Direct Spark Ignition DSI ModuleInstallation Steam ControlsTo Replace Steam Coil Damper System To Replace PistonTo Replace Steam Coil To Replace the Needle ValveTo Replace the 3-WAY Microvalve To Replace Oven Contactor Electrical Oven ControlsTo Replace Electrical Elements Thermostats and Temperature Sensor To Replace HI-LIMIT Thermostat 330º GAS, 290º ElectricSail Switch Assembly GAS and Electric Models To Replace Sail SwitchFront Panel and Main Door Assemblies To Adjust Sail SwitchTo Replace Main Door Switch To Replace Front Panel To Replace Main Door AssemblyTo Install NEW Main Door Glass To Replace Main Door Hinge To Replace the Nylon CatchTo Replace Tumbler Pulley Reversing Tumbler and Bearing AssemblyTo Replace Tumbler Pulley NON-REVERSING To Replace the Rear Tumbler Bearing To Replace the Front Tumbler BearingTo Replace Idler Bearing Idler and Bearing AssemblyTo Replace Idler Pulley Drive Pulley Tumbler Alignment VerticalTumbler Alignment Lateral To Replace the Tumbler AND/OR Tumbler Support Belt Tension Alignment Motor to Idler Belt Tension Adjustment Tumbler to IdlerBelts To Replace V-BELTS MotorImpellor To Replace Motor NON-REVERSINGLint Drawer Screen To Replace Lint ScreenTroubleshooting Phase 7 NON-COIN System Diagnostics Diagnostic L.E.D. Display Fault MessagesINPUT/OUTPUT Board Light Emitting Diode L.E.D. Indicators American Dryer Corp 450268-1 Display reads Exhaust High Limit Fault. Refer to Display reads Sail Switch Closed Fault. Refer to 450268-1 Display reads Cycle Paused, Main Door Open. Refer to 450268-1 American Dryer Corp 450268-1 450268-1 American Dryer Corp 450268-1 450268-1 American Dryer Corp 450268-1 450268-1 Data Label Information Data LabelUsing a Manometer HOW to USE a ManometerKeypad Layout System Reset NON-COIN S.A.F.E. System Check ProcedureStatic Pressure ILLUS. #1ILLUS. #3 Using a MagnehelicILLUS. #2 American Dryer Corp 450268-1 450268-1 ADC Part No 1 10/26/05

AD-25, AD-30 specifications

American Dryer Corporation (ADC) has long been a trusted name in the commercial laundry equipment industry. Among their notable offerings are the AD-30 and AD-25 dryers, which are engineered to provide exceptional performance, reliability, and efficiency.

The AD-30 dryer is designed for high-capacity laundry operations, making it an ideal choice for large businesses such as hotels, hospitals, and laundromats. With a maximum drying capacity of 30 pounds, the AD-30 features a robust construction that can withstand the demands of heavy usage. Its powerful airflow technology ensures quick drying times, improving productivity and minimizing energy consumption. The dryer is equipped with a microprocessor control that offers multiple cycle options and customizable settings, allowing operators to tailor each drying cycle based on the specific fabric types being processed.

On the other hand, the AD-25 serves smaller operations with a capacity of 25 pounds, making it an efficient choice for businesses with moderate laundry needs. Similar to the AD-30, it incorporates advanced airflow technology to enhance drying efficiency. The AD-25 also features easy-to-use controls and programmable settings, providing flexibility for various drying requirements. Both models come with an easy-to-clean lint filter that helps maintain optimal air quality and prolongs the life of the machine.

In terms of construction, both dryers are built with durability in mind. Their stainless steel exteriors are not only aesthetically pleasing but also resistant to corrosion, ensuring they remain in good condition over time. The design of these dryers incorporates vibration reduction systems to minimize noise during operation, contributing to a more pleasant working environment.

Energy efficiency is a hallmark of American Dryer Corp products, and both the AD-30 and AD-25 are no exception. They are designed to consume minimal energy while delivering maximum drying performance, which can lead to significant cost savings over time. Additionally, the dryers are engineered with safety features, including over-temperature protection and a non-reversible door to prevent accidents.

In summary, American Dryer Corp's AD-30 and AD-25 dryers exemplify the brands' commitment to providing quality, efficiency, and reliability in commercial laundry operations. With their advanced technologies and user-friendly features, these dryers are well-equipped to meet the diverse needs of the laundry industry.
Top Page Image Contents