American Dryer Corp D-40 installation manual Electrical Requirements, System Reset

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3.Electrical Requirements

No independent external power source or supply connection is necessary. The 24 volt power to operate the fire suppression system (F.S.S.) is accomplished internally in the dryer (from the dryer controls).

WARNING: ELECTRICAL POWER MUST BE PROVIDED TO THE DRYER AT ALL TIMES. If the main electrical power supply to the dryer is disconnected, the F.S.S. is

INOPERATIVE!!

Fire Suppression System (FSS) Theory of Operation

20-seconds after the heat turns off, the Phase 7 control monitors the FSS probe located in the top of the basket (tumbler) chamber and records the minimum temperature. If the minimum recorded temperature is no less than 120° F (48° C) and the control detects a 35° rise in temperature, this will be the trip point and the FSS routine will activate.

While a drying cycle is in process and the heat is on, the Phase 7 control monitors the exhaust temperature transducer. If the drying cycle temperature set point is set greater than 160° F (71° C) and the control detects an exhaust temperature rise 25° F (-3.8° C) greater than set point, this will be the trip point and the FSS routine will activate.

Once the FSS routine is activated, water will be injected into the basket (tumbler) chamber. Anytime water is being injected into the basket (tumbler); the basket (tumbler) drive will turn the load for 1-second every 15-seconds. This process will continue for a minimum of 3 minutes. After 3 minutes has elapsed, the control will check if the temperature remained above trip point, if so water will remain on. The control will continue to check if temperature is above trip point every 30-seconds. If the water has been on for a constant 10 minutes, the water will be turned off regardless of the temperature. If the temperature has dropped below trip point, the control will turn off the water prior to 10 minutes.

SYSTEM RESET

After the microprocessor determines that the situation is under control and shuts the water being injected into the basket (tumbler) off, the microprocessor display will read “FIRE SUPPRESSION SYSTEM ACTIVATED,” and the horn/tone will sound until reset manually.

To reset the microprocessor and F.S.S., press the red key on the keyboard (touch pad).

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Contents
Installation Manual Retain This Manual In a Safe Place For Future Reference Important Note to PurchaserFor Your Safety Page Table of Contents Section Routine Maintenance Important Information Receiving and HandlingSafety Precautions Explosion could ResultStandards Specifications SpecificationsSpecifications Installation Procedures UNPACKING/SETTING UPLocation Requirements Dryer Enclosure Requirements Fresh AIR Supply Requirements Exhaust Requirements Single Dryer Venting Vertical Venting Multiple Dryer Common Venting Illus. C Important Venting Reminders Electrical Information Electrical RequirementsMust be Provided SINGLE-PHASE 1Ø Electrical Connection Leads Important a Circuit Servicing Each Dryer Must be Provided Important a Circuit Servicing Each Dryer Must be Provided 40 GAS Steam GAS Information Type of GAS Page Page Operating Steam Pressure Steam InformationPage Compressed AIR Pressure AIR Supply Page Steam Damper Air Piston Flow Control Operation Adjustment Preparation for OPERATION/START-UP Preoperational Tests GAS Models onlyPreoperational Instructions Coin ModelsPage OPL Models Page Service SERVICE/PARTS InformationParts Warranty Warranty InformationReturning Warranty Cards Returning Warranty PartsPage Cleaning Routine MaintenanceSuggested Cleaning Schedule Adjustments LubricationLint Drawer Removal Data Label Information Data LabelSerial Number Reversing Timer SPIN/DWELL Adjustments TIM ING LegendProcedure for Functional Check Replacement Components Page S. In Action F.E. Fire Suppression System F.S.SInstallation Before YOU Start Check Local Codes and PermitsWater Connections Optional Manual Bypass System Reset Electrical RequirementsParts Break Down Comp x 3/8 M.P.T. Brass Connector 822752 ADC 113370 1 03/25/02-25
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