American Dryer Corp AD-310 Phase 7 service manual Sprinkler System Description

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E. SPRINKLER SYSTEM DESCRIPTION

The sprinkler system is monitored by a microprocessor based temperature controller as a designated “FAIL- SAFE.” The microprocessor circuit must have power in order to engage main power to the dryer. When cycling the dryer, if temperature at the Resistive Temperature Device (RTD) reaches 575º F (301.6º C), one (1) set of contacts in the controller will open, disabling the power (electric supply) to the dryer. Another set of contacts will close, sounding the alarm and turning on the sprinkler.

NOTE: The sprinkler as well as the alarm will remain on until the “amber” colored sprinkler reset button is pressed and the temperature in the basket (tumbler) falls below 575º F (301.6 º C).

1.Description Of Components

a.Resistive Temperature Device (RTD)

The RTD is located above the basket (tumbler). The probe is a 100 ohm (100 ) platinum RTD. As the temperature increases or decreases the

resistance value corresponds to the ambient temperature (i.e., 100 = 32º F [0º C]...109 = 75º F [24º C]).

b. Sprinkler Valve

The sprinkler valve is a 2-way, air piloted, normally closed valve. With pilot air pressure applied, the valve opens allowing water to flow.

c. Sprinkler Solenoid Valve

The sprinkler solenoid valve is a 3-way/2-position solenoid valve that is used to supply pilot air to the sprinkler valve.

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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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