American Dryer Corp ML-310 Phase 7 service manual Createapotentialsafetyhazard

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C.NATURAL GAS and LIQUID PROPANE (L.P.) GAS CONVERSION INSTRUCTIONS

IMPORTANT: CONVERSION MUST BE PERFORMED BY COMPETENT TECHNICIANS IN ACCORDANCE WITH LOCAL and STATE CODES.

NOTE: Converting the dryer to L.P. gas disables the internal regulator of the gas valve, therefore, an external regulator must be provided at the source of the L.P. gas supply (L.P. tank) or the dryer. The water column (W.C.) gas pressure must be regulated 10.5 inches (26.1 mb) for safe and efficient dryer operation. Low, inconsistent, or too high a gas pressure will result in improper operation of the dryer’s heat and safety circuits. POOR EFFICIENCY CAN

CREATEAPOTENTIALSAFETYHAZARD.

1.Discontinue electrical power to the dryer.

2.Close ALL gas shutoff valves in the dryer’s gas supply line. Turn the gas cock dial to the off position on the gas valve.

3.Disconnect the gas valve wiring.

Be sure to identify the correct location of each wire for correct reinstallation.

4.Disconnect union connection in the gas supply line.

IMPORTANT: Pipe joint compounds that resist the action of natural gas and L.P. gas must be used.

5.Loosen and remove the screws from the brackets holding the gas valve/manifold assembly to the burner box.

6.Remove the gas valve and manifold assembly from the dryer.

7.Unscrew the main burner orifices and replace them with the L.P. orifices provided.

NOTE: Use extreme care when handling (removing or replacing) orifices. THESE ORIFICES ARE

MADE OF BRASS and CAN BE EASILY DAMAGED.

8.Remove the two (2) screws on the gas valve regulator. Remove the regulator and the gasket.

9.Install the new gasket and L.P. regulator. Replace the two (2) screws.

NOTE: USE ONLY NEW PARTS PROVIDED.

10. Place the L.P. conversion labels on the gas valve.

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Contents ML-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 ML-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 Valves are not Field Repairable First Visual Check Second Visual Check Third Visual Check Troubleshooting the Direct Spark Ignition DSI System DSI Ignitor GAP Feeler GaugePage Page Page First Visual Check Second Visual Check Third Visual Check With a Flame GAP on the Ignitor/Flame-Probe Page Flash Green Continuously Page With a Flame GAP on the Ignitor/Flame-Probe Page Light RED Continuously Page Createapotentialsafetyhazard 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 Page 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 ADC450421 1- 10/03/00-10