American Dryer Corp MDG30V installation manual

Page 30

Consistent gas pressure is essential at ALL gas connections. It is recommended that a 3/4-inch (19.05

mm)pipe gas loop be installed in the supply line servicing 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 (29.9 mb) of water column (W.C.) pressure. (Refer to the illustrations on the previous page.)

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

A 1/8” 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 gas and L.P. gas must be used.

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

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

ALL components/materials must conform to National Fuel Gas Code Specifications ANSI Z223.1-LATEST EDITION, or in Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (L.P. Gas) or LATEST EDITION (for General Installation and Gas Plumbing), as well as local codes and ordinances and must be done by a qualified professional. 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 BTUs being supplied.

IMPORTANT: The dryer and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa).

NOTE: The dryer must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure test of the gas supply system at test pressures equal to or less than 1/2 psig (3.5 kPa).

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Contents MDG30V 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 Important Information Receiving and HandlingSafety Precautions Explosion could ResultPage Specifications SpecificationsMDG30V 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 RequirementsSingle-Phase 1ø Wiring Connections/Hookup Must be ProvidedSINGLE-PHASE 1Ø Electrical Connection Leads Important a Circuit Servicing Each Dryer Must be Provided Service Wire Approx Circuit Phase AMP Draw Voltage Breaker MDG30V GASGAS Information Type of GAS Page Page Preparation for OPERATION/START-UP Preoperational Tests GAS Models onlyPreoperational Instructions Coin ModelsPage OPL Models Shut Down Instructions SERVICE/PARTS Information ServiceParts Warranty Information Returning Warranty CardsWarranty Routine Maintenance CleaningSuggested Cleaning Schedule Adjustments LubricationLint Drawer Removal Troubleshooting StandardsBlower motor is not operating does not start Microprocessor controller computer display reads dSFL GAS Models only Dryer operates but is taking too long to dry Excessive noise and/or vibration Data Label Information Data LabelSerial Number Procedure for Functional Check Replacement Components Page 113365 1 04/22/02-25
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