American Dryer Corp MD-170 manual Latest Edition

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3.Piping/Connections

ALL components/materials must conform to National Fuel Gas Code Specifications. It is important that gas pressure regulators meet applicable pressure requirements and that gas meters be rated for the total amount of ALL the appliance Btu's being supplied.

The dryer is provided with a 1-1/2-inch N.P.T. inlet pipe connection extending out the back area of the burner box. The minimum pipe size connection (supply line) to the dryer is 1-1/2-inch N.P.T. For ease of servicing, the gas supply line of each dryer must have its own shut-off valve.

The size of the main gas supply line (header) will vary depending on the distance this line travels from the gas meter or, in the case of L.P. (liquid propane) gas, the supply tank, other gas-operated appliances on the same supply line, etc. Specific information regarding supply line size should be determined by the gas supplier.

NOTE: Undersized gas supply piping can create a low or inconsistent pressure which will result in erratic operation of the burner ignition system.

Consistent gas pressure is essential at ALL gas connections. It is recommended that a 1-inch (2.54 cm) pipe gas loop be installed in the supply line serving a bank of dryers. An in-line pressure regulator must be installed in the gas supply line (header) if the (natural) gas pressure exceeds 12.0 inches of water column (29.9 mb) pressure.

IMPORTANT: A water column pressure of 3.5 inches (8.7 mb) for natural gas and 10.5 inches (26.1 mb) for L.P. dryers is required at the gas valve pressure tap of each dryer for proper and safe operation.

A 1/8-inch N.P.T. plugged tap, accessible for a test gauge connection, must be installed in the main gas supply line immediately upstream of each dryer.

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

IMPORTANT: Test ALL connections for leaks by brushing on a soapy water solution (liquid detergent works well).

WARNING: NEVER TEST FOR GAS LEAKS WITH A FLAME!!!

ALL components/materials must conform to National Fuel Gas Code Specifications ANSI Z223.1-

LATEST EDITION.

It is important that gas pressure regulators meet applicable pressure requirements, and that gas meters be rated for the total amount of ALL the appliance Btu's being supplied.

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Contents Maytag Co MD-170 Installation/Operators ManualRetain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section Procedure for Functional Check of Replacement Important Information SectionWhat to do if YOU Smell GAS Safety PrecautionsGAS Supply or the Steam Supply Before ANY Covers or Specifications GAS and Steam Specifications / Component IdentificationSpecifications MDG-170 Gas MDS-170 Steam Component Identification Page Location Requirements Installation ProceduresUNPACKING/SETTING UP Round duct can now be connected to the dryer Dryer Enclosure Requirements Fresh AIR Supply Create a Potential Fire Hazard Exhaust RequirementsPage Page Page Page Page Electrical Information MDG-170 Gas MDS-170 Steam Page Page GAS Information Type of GAS Latest Edition Page Steam Requirements High Pressure Steam InformationSteam Damper System 621 kPa DiagramPage Preparation for OPERATION/START-UP Switch Otherwise the Dryer will not StartPreoperational Tests Natural Gas Inches W.C .5 millibars Basket Coating Shut Down Instructions621 kPa Compressed AIR RequirementsService SERVICE/PARTS InformationParts Returning Warranty Cards Warranty InformationCleaning Routine MaintenanceClean the lint drawer or screen every third or fourth load Createa Potentialfire Hazard Lubrication AdjustmentsDrive motor is not operating does not start TroubleshootingFailed blower impellor/fan drive shaft bearings Blower impellor/fan motor is not operating does not startFailed microprocessor controller computer Failed keyboard touchpad label assembly GAS Models Steam Models Dryer operates but is taking too long to dry Gas Models Condensation on main door glass AA. Excessive noise and/or vibration Dryer or scraping noise at tumbler basket areaFailed drive motor contactor relay Failed motor Failed blower impellor/fan drive shaft bearings Steam Models Gas Models Steam Models Condensation on main door glass Excessive noise and/or vibration Timing Legend Reversing Timer SPIN/DWELLADJUSTMENTSData Label Location / Information GAS Manifold Pressure for GAS Dryers Data LabelMicroprocessor computer Board Procedure for Functional Check Replacement ComponentsModels manufactured with ADC module Part No Theory Of Operation P O R T a N T ADC P/N114501 02/16/00-25 2- 02/25/00-250
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