American Dryer Corp MDG75V installation manual Fresh AIR Supply Requirements

Page 17

D. FRESH AIR SUPPLY REQUIREMENTS

When the dryer is operating, it draws in room air, heats it, passes this air through the basket (tumbler), and exhausts it out of the building. Therefore, the room air must be continually replenished from the outdoors. If the make-up air is inadequate, drying time and drying efficiency will be adversely affected. Ignition problems and sail switch “fluttering” problems may result, as well as premature motor failure from overheating.

Air supply (make-up air) must be given careful consideration to assure proper performance of each dryer. An unrestricted source of air is necessary for each dryer. An airflow of 1,000 cfm (cubic feet per minute), (28.3 cmm [cubic meters per minute]) must be supplied to each dryer. As a general rule, an unrestricted air entrance from the outdoors (atmosphere) of a minimum of 1-1/2 square feet (0.14 square meters) is required for each dryer. The dryer must be installed with provisions for adequate combustion and make-up air supply.

IMPORTANT: Make-up air openings should not be located in an area directly near where exhaust vents exit the building.

To compensate for the use of registers or louvers used over the openings, this make-up air must be increased by approximately thirty-three percent (33%). Make-up air openings should not be located in an area directly near where exhaust vents exit the building.

It is not necessary to have a separate make-up air opening for each dryer. Common make-up air openings are acceptable. However, they must be set up in such a manner that the make-up air is distributed equally to ALL the dryers.

EXAMPLE: For a bank of four (4) dryers, two (2) unrestricted openings measuring 2 feet by 1-1/2 feet (0.61 meters by 0.46 meters), (6 square feet [0.56 square meters]) is acceptable.

Allowances must be made for remote or constricting passageways or where dryers are located at excessive altitudes or predominantly low pressure areas.

IMPORTANT: Make-up air must be provided from a source free of dry cleaning solvent fumes. Make-up air that is contaminated by dry cleaning solvent fumes will result in irreparable damage to the motors and other dryer components.

NOTE: Component failure due to dry cleaning solvent fumes will VOID THE WARRANTY.

13

Image 17
Contents MDG75V Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section Procedure for Functional Check of Replacement Receiving and Handling Important InformationWhat to do if YOU Smell GAS Safety PrecautionsPage Specifications SpecificationsMDG75V Component Identification Page Location Requirements Installation ProceduresUNPACKING/SETTING UP Dryer Enclosure Requirements Fresh AIR Supply Requirements General Exhaust Ductwork Information Exhaust RequirementsPage Page Multiple common Dryer Venting Importantventingreminders Electrical Requirements Electrical InformationMust be Provided SINGLE-PHASE 1Ø Electrical Connections Leads Important a Circuit Servicing Each Dryer Must be Provided Page MDG75V GAS GAS Information Type of GAS Page Page Preparation for OPERATION/START-UP GAS Models only Preoperational TestsBasket Tumbler Coating Shutdown Instructions Preoperational InstructionsParts SERVICE/PARTS InformationService Suggested Cleaning Schedule Routine MaintenanceCleaning Lubrication AdjustmentsLint Drawer Removal Microprocessor Controller Computer Models 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 Dryer is making scraping noise at basket tumbler area Data Label Data Label InformationSerial Number Sectionviii Procedure for Functional Check Replacement ComponentsPage 113160 1 11/27/02-25