American Dryer AD-120ES manual Preoperational Tests, Natural GAS

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J.PREOPERATIONAL TESTS

ALL dryers are thoroughly tested and inspected before leaving the factory. However, a preoperational test should be performed before the dryer is publicly used. It is possible that adjustments have changed in transit or due to marginal location (installation) conditions.

1.Turn on electric power to the dryer.

2.Make sure the main door is closed and the lint drawer is securely in place.

3.Refer to the Operating Instructions for starting your particular dryer.

4.Check to insure that the basket (tumbler) starts in the clockwise (CW) direction. Additionally, check the direction of the blower motor impellor (fan) to insure that impellor (fan) rotates in the clockwise (CW) direction as viewed from the front. If it is, the phasing is correct. If the phasing is incorrect, reverse two (2) of the leads at L1, L2, or L3 of the power supply connections made to the dryer.

IMPORTANT: Dryer blower motor impellor/fan as viewed from the front must turn in the clockwise (CW) direction, otherwise dryer efficiency will drastically be reduced and premature component failure can result.

5.HEAT CIRCUIT OPERATIONAL TEST a. Gas Models

1)When the dryer is first started (during initial start-up), the burner has a tendency not to ignite on the first attempt. This is because the gas supply piping is filled with air, so it may take a few minutes for this air to be purged from the lines.

2)The dryer is equipped with a direct spark ignition (DSI) system which has internal diagnostics. If ignition is not established after the first attempt, the heat circuit DSI module will lock out until it is manually reset. To reset the DSI system, open and close main door and restart dryer (press the "ENTER/START" key).

NOTE: During the purging period, check to be sure that ALL gas shut-off valves are open.

3)Once ignition is established, a gas pressure test should be taken at the gas valve pressure tap of each dryer to assure that the water column pressure is correct and consistent.

NOTE: Water column pressure requirements (measured at the gas valve pressure tap)...

NATURAL GAS ---

3.5-4.0 INCHES W.C.

L.P. GAS ------------

10.5 - 11.0 INCHES W.C.

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Contents AD-120ES Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section Important InformationSafety Precautions What to do if YOU Smell GASStandards Specifications / Component Identification SpecificationsADG-120ES ADE-120ES ADS-120ES Component Identification Dryer Front ViewDryer Rear View Installation Procedures Location RequirementsUNPACKING/SETTING UP Leveling Dryer Dryer Enclosure Requirements Fresh AIR Supply Exhaust Requirements General Exhaust Duct Work InformationPage Single Dryer Venting Multiple Dryer Common Venting Page ADG-120ES for GAS Models ADE-120ES for 80 KW Electric Models Page Electrical Information Electrical Service Specifications PER Dryer ADG-120ES Reversing, 3ø GAS ADS-120ES Reversing, 3ø SteamADE-120ES 72 Kw Electric Reversing, 3ø ADE-120ES 80 Kw Electric Reversing, 3ø Page Page GAS Information Gas SupplyType of Gas Page Page Steam Coil PH Level Installation InstructionsSteam Requirements , High Pressure Steam Damper System Steam Damper AIR System Connections Steam Damper System OperationSteam Damper AIR Piston Flow Control Operation Adjustment Preparation for Operation Preoperational Tests Natural GASPage Page Operating Instructions Shut Down Instructions Service SERVICE/PARTS InformationParts Warranty Information Returning Warranty CardsWarranty Returning Warranty PartsPage Routine Maintenance CleaningDays Adjustments LubricationNo L.E.D. display microprocessor computer models only TroubleshootingDrive motor not operating does not start Blower motor not operating does not start Microprocessor computer display reads dSFL Microprocessor controller computer display reads doorPage No heat for Steam Models only No heat for Electric Models onlyDryer operates but is taking too long to dry Condensation on main door glassDryer or scraping noise at basket tumbler area Excessive noise and/or vibrationDrive motor only not operating does not start Failed reversing timer for Reversing Models onlyBlower impellor/fan motor only not operating does not start Heat unit not operating for only one 1 temperature selection Dryer operates but is taking too long to dry loadSail switch is fluttering for GAS and Electric Models only Failed hi-limit thermostat for GAS and Electric Models onlyDryer scraping noise at basket tumbler area Reversing Timer SPIN/DWELL Adjustments Timing LegendProcedure for Functional Check Replacement Components Microprocessor computer BoardDirect Spark Ignition DSI System