American Dryer Corp MDG30V installation manual Multiple Dryer Common Venting

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MULTIPLE DRYER (COMMON) VENTING

If it is not feasible to provide separate exhaust ducts for each dryer, ducts for individual dryers may be channeled into a common main duct. Each dryer is provided with a back draft damper. The individual ducts should enter the bottom or side of the main duct at an angle not more than 45° in the direction of the airflow.

The main common duct may be any shape so long as the minimum cross-sectional area is provided. The main duct should be tapered with the diameter increasing before each individual 8-inch (20.32 cm) duct is added (refer to Illus. C for horizontal venting and Illus. D for vertical venting).

IMPORTANT: No more than four (4) dryers maximum should be connected to one (1) main common duct with a vertical run.

NOTE: Distance between dryer single ducts being connected to the main common duct must be a minimum of 34-1/4” (87 cm) dryer width.

Ductwork should be laid out in such a manner where allowances are made at rear area of the dryer for removal of rear service panels or guards.

The illustrations on page 16 show the minimum cross section area for multiple dryer venting. These figures must be increased in proportion if the main duct run from the last dryer to where it exhausts has numerous elbows or is unusually long.

IMPORTANT: For extended ductwork runs, the cross section area of the duct can only be increased to an extent. For extended ductwork runs, a professional heating, venting, and air conditioning (HVAC) firm should be consulted for proper venting information.

Refer to page 16 for Multiple Dryer Horizontal Venting and Vertical Venting examples/illustrations.

IMPORTANT: Exhaust back pressure measured by a manometer at the dryer exhaust duct area must be no less than 0 and must not exceed 0.3 inches (0.74 mb) of water column (W.C.).

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Contents MDG30V Important Note to Purchaser Retain This Manual In a Safe Place For Future ReferenceFor Your Safety Page Table of Contents Section Procedure for Functional Check of Replacement Receiving and Handling Important InformationExplosion could Result Safety PrecautionsPage Specifications SpecificationsMDG30V UNPACKING/SETTING UP Installation ProceduresLocation 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 Requirements Electrical InformationMust be Provided Single-Phase 1ø Wiring Connections/HookupSINGLE-PHASE 1Ø Electrical Connection Leads Important a Circuit Servicing Each Dryer Must be Provided MDG30V GAS Service Wire Approx Circuit Phase AMP Draw Voltage BreakerGAS Information Type of GAS Page Page Preparation for OPERATION/START-UP GAS Models only Preoperational TestsCoin Models Preoperational InstructionsPage OPL Models Shut Down Instructions Service SERVICE/PARTS InformationParts Returning Warranty Cards Warranty InformationWarranty Cleaning Routine MaintenanceSuggested Cleaning Schedule Lubrication AdjustmentsLint Drawer Removal Standards TroubleshootingBlower 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 Data Label InformationSerial Number Procedure for Functional Check Replacement Components Page 113365 1 04/22/02-25
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