American Dryer Corp ML-78 Section, Procedure for Functional Check Replacement Components

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SECTION IX

PROCEDURE FOR FUNCTIONAL CHECK OF

REPLACEMENT COMPONENTS

1. Hot Surface Ignition (HSI) System

a. Upon completing installation of the replacement Hot Surface Ignition (HSI) module, reestablish power to the dryer.

b. Start the drying cycle.

c. The HSI module's "red" indicator light will light for up to approximately 5 seconds (self check routine).

If the HSI module's "red" indicator light stays on or flashes continuously, then the HSI module is wired incorrectly or has failed.

d.The green indicator will light then the hot surface ignitor will turn on, and a few seconds later the gas valve will be energized. After approximately 4 seconds the hot surface ignitor will shut off. Ignition (flame) should now be established.

e.With the burner flame on, remove the flame sensor wire from the S2 terminal of the HSI module.

The burner flame must shut off immediately.

f.Stop the drying cycle, with the flame sensor wire still removed, restart the drying cycle.

g.The hot surface ignitor will turn on, and after a few seconds later the gas valve will be energized and the hot surface ignitor will shut off. Ignition (flame) should be evident for approximately 7 seconds and then shut off.

h.The HSI module will attempt two (2) additional ignition trials after which the HSI module will lock out and the "red" indicator light will flash continuously.

i.Functional check of the Hot Surface Ignition (HSI) Module is complete.

1)Replace the flame sensor wire from the S2 terminal to the HSI module.

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Contents ML-78 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section Procedure for Functional Check of Replacement Section Important InformationSafety Precautions What to do if YOU Smell GASStandards SPECIFICATIONS/COMPONENT Identification SpecificationsSpecifications Component Identification Dryer Rear View Installation Procedures Location RequirementsUNPACKING/SETTING UP Dryer Enclosure Requirements Fresh AIR Supply Page Exhaust Requirements Not be Reduced Anywhere Down Stream of the Dryer Reduced Anywhere Down Stream of the Dryer Page Electrical Information MLG-78 Gas MLS-78 Steam Page Black Positive White Neutral Green Ground Page Electrically Heated Models only Page GAS Information Type of Gas Page Page Steam Information Operating Steam PressureSteam Damper System Compressed Air Supply Air Pressure Page Page Preparation for OPERATION/START-UP Preoperational Tests Page Preoperational Instructions Shut Down Instructions Service SERVICE/PARTS InformationParts Returning Warranty Cards Warranty InformationReturning Warranty Parts Page Routine Maintenance CleaningSteam Dryers Reversing Timer SPIN/DWELL Adjustments Timing LegendData Label LOCATION/INFORMATION Data LabelSerial Number Procedure for Functional Check Replacement Components SectionADC113029