American Dryer Corp AD-310 Phase 7 service manual VAC Direct Spark Ignition DSI Modules

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24 VAC Direct Spark Ignition (DSI) Modules

a. The Direct Spark Ignition (DSI) Module is a 24 VAC device designed to be the “controller” of the DSI system. When activated by the dryer controls, this module constantly monitors and controls the functions of the DSI system (i.e., spark activation, gas valve off and on, flame verification, etc.). Additionally, the DSI Module has self diagnostic capabilities.

Johnson (DSI) Control Module

ADC (DSI) Control Module

P/N 128935

P/N 128973

b.The Ignitor/Flame-Probe Assembly is located in the burner flame area and is used to ignite the gas by use of a high voltage spark (approximately 14,000 volts) and to provide feedback information to the DSI Module as to whether the burner flame is evident (on).

Ignitor/Flame-ProbeAssembly

c.The Burner Manual Reset Hi-Limit Switch is a thermostat type switch located in the burner. Its function is to discontinue heat (flame) in the event of an over temperature situation (above

330º F [166º C]). For dryers manufactured as of May 26, 1998, the hi-limit must be manually reset once the device trips.

330º F (166º C) Thermostat

d. The Sail Switch Assembly is located on the Burner Assembly, downstream of the flame tubes. Its function is to detect whether or not there is sufficient airflow through the dryer.

Sail Switch Assembly

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Contents AD-310 Phase Retain This Manual In a Safe Place For Future Reference Important Note to PurchaserFor Your Safety Page Table of Contents Section Procedure for Functional Check of Replacement AD-310 Reference Guide Base Section Section Explosion could ResultStandards Cleaning LiquidsAT 80 PSI 5.51 Bars Lubrication Every 3 MonthsAdjustments Days After Installation and Every 6 Months ThereafterSpecifications and Dimensions Dimensions Obligation Obligation Installation Requirements ENCLOSURE/AIR SUPPLY/EXHAUST RequirementsOperational Service Check Procedure Electrical and GAS RequirementsHeat Section Direct Spark Ignition DSI System COMPONENTS/FUNCTIONSVAC Direct Spark Ignition DSI Modules 225º F 107º C Thermostat Redundant Gas Valve First Visual Check Second Visual Check Third Visual Check Troubleshooting the Direct Spark Ignition DSI System ManometerPage Page Page First Visual Check Second Visual Check Third Visual Check With a Flame DSI Ignitor/Flame-Probe Assembly Adjustments Page Flash Green Continuously Page With a Flame DSI Ignitor/Flame-Probe Assembly Adjustments Page Light RED Continuously Page Createapotentialsafety Hazard Made of Brass and can be Easily DamagedSteam Coil System Operation General OverviewPage Page Page Page Sprinkler System Description MAN3488 Page Supplies Before Servicing the Dryer Page Page Tilting System Description Page Page Page Page Page AIR JET Assembly Page Blower Squirrel Cage Fan Motor Assembly Page Page Important do not Overtighten V-BELTS Important do not Overtighten V-BELTS Page Page FILTER/REGULATOR Assembly Regulator OperationDoor Systems Manual Doors Automatic Doors Page Page Page Control and Electrical System Ladder Diagram Page Button does not Disable the High Voltage to the Dryer Page ºC + ºC + ºK Page Page Page Page Page Page Tumbler/Drum SECTION. Serious Injury can Result Tumbler/Drum SECTION. Serious Injury can Result Basket Tumbler Drive System Important do not Overtighten Turnbuckle Important do not Overtighten Turnbuckle Page Page Important do not Overtighten Turnbuckle Page Page Page Phase 7 OPL System Diagnostics Inputs RED Outputs Green Fdrc RED L.E.D Lint RED L.E.D 100 101 Troubleshooting Drive motor is not operating does not start Impellor fan motor is not operating does not start 105 106 Dryer operates but is taking too long to dry Excessive noise and vibration 109 Procedure for Functional Check Replacement Components 111 ADC 450049 1- 09/14/00-25
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