American Dryer Corp. ML-75HS Installation Manual

ADC Part No. 113001For replacement parts, contact the distributor from which the dryerwas purchased orAmerican Dryer Corporation88 Currant RoadFall Ri

6BASKET DIAMETER 37" 94 cmBASKET DEPTH 36"91.5 cmBASKET MOTOR 1 HP*.746 kwDOOR OPENING (Diameter) 31-3/8"79.7 cmBASKET VOLUME 22.4 cu.

7NOTE: ADC RESERVES THE RIGHT TO MAKE CHANGES IN SPECIFICATIONS ATANY TIME, WITHOUT NOTICE or OBLIGATION.SpecificationsMLG-75HSMLE-75MLS-75

8B. COMPONENT IDENTIFICATION1. DRYER FRONT VIEWIllus. No. Description1 Controls2 Control (top access) Door Assembly3 Main Door Assembly4 Lint Compar

91. DRYER REAR VIEWNOTE: 1/8-inch Compressed Air Supply Inlet (for Steam Models ONLY) is located behindthe Electric Service Relay Box.Illus. No. Desc

10SECTION IIIINSTALLATION PROCEDURESInstallation should be performed by competent technicians in accordance with local and state codes. In theabsenc

11B. UNPACKING/SETTING UPRemove protective shipping material (i.e., plastic wrap, and/or optional shipping box) from dryer.IMPORTANT: Dryer must be t

12NOTE: Allowances must be made for opening the control door.Dryers may be positioned side wall to side wall. However, a 1/16" minimum allowanc

13D. FRESH AIR SUPPLYWhen the dryer is operating, it draws in room air, heats it, passes this air through the basket (tumbler), andexhausts it out of

14E. EXHAUST REQUIREMENTS1. General Exhaust Duct Work InformationExhaust duct work should be designed and installed by a qualified professional.

15IMPORTANT: Minimum duct work diameter for horizontal venting is 10-inches and for verticalventing the minimum is 12-inches..NOTE: Where the exhaust

Retain This Manual In A Safe Place For Future ReferenceReplacement parts can be obtained from your distributor or the ADC factory. When ordering repl

16IMPORTANT: For extended duct work runs, the cross section area of the duct work can only beincreased to an extent. When the duct work approaches th

173. Multiple Dryer (common) VentingIf it is not feasible to provide separate exhaust ducts for each dryer, ducts from individual dryers may bechanne

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19F. ELECTRICAL INFORMATION 1. ELECTRICAL REQUIREMENTSIt is your responsibility to have ALL electrical connections made by a properly licensed an

20 2. ELECTRICAL SERVICE SPECIFICATIONSA. Gas and Steam ModelsIMPORTANT: Figures shown are for non-reversing models ONLY. For reversing models

21B. Electric Models OnlyIMPORTANT: Figures shown are for non-reversing models ONLY. For reversing models contact thefactory.IMPORTANT: The dryer mu

223. GROUNDINGA ground (earth) connection must be provided and installed in accordance with state and local codes.In the absence of these codes, grou

23Single-Phase (1Ø) Electrical Connections LeadsBlack+PositiveWhite+NeutralGreen+GroundorL2Actual electrical wire connections are made to the L1 and

24The only electrical input connections to the dryer are the 3-phase (3Ø) power leads (L1,L2,L3 andsometimes neutral) and ground. Single-phase (1Ø) p

253) 3-Phase Wiring Connections/Hookup "Reversing Models Only"The electrical connections on ALL 3-phase (3 Ø) gas and steam dryers are made

IMPORTANTYOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY and THE GASSUPPLY or THE STEAM SUPPLY BEFORE ANY COVERS or GUARDS AREREMOVED FROM THE MAC

26IMPORTANT: A strain relief must be used where the input wiring enters the oven assembly. b) ELECTRICALLY Heated Models ONLYThe only electrical

27G. GAS INFORMATIONIt is your responsibility to have ALL plumbing connections made by a qualified professional to assure that the gasplumbing instal

28 2. TECHNICAL GAS DATAa. Gas Specificationsb. Gas Connections: Inlet connection ------------ 3/4" inch N.P.T. Inlet supply size -----

293. Piping/Connections ALL components/materials must conform to National Gas Code specifications. It is important that gaspressure regulators meet

30Consistent gas pressure is essential at ALL gas connections. It is recommended that a 3/4-inch pipe gasloop be installed in the supply line serving

312. Steam Requirements - High PressureInlet -------- 1" supply line connection -- qty. one (1) at top manifoldReturn ----- 1" return line

32g. Water pockets in the supply line, caused by low points, will provide wet steam to the coil possibly causingsteam coil damage. ALL horizontal runs

333. STEAM DAMPER AIR SYSTEM CONNECTIONSThe MLS-75 is manufactured with a pneumatic (piston) damper system which requires an externalsupply of compre

344. STEAM DAMPER SYSTEM OPERATIONThe MLS-75 steam damper shown in Diagram 1 in the illustration below, allows the coil to stayconstantly charged

355. Steam Damper Air Piston (Flow Control) Operation AdjustmentAlthough the steam damper operation was tested and adjusted prior to shipping at 80 P

WARNINGThe dryer must never be operated with any of the back guards, outer tops, or servicepanels removed. PERSONAL INJURY or FIRE COULD RESULT.IMPOR

36I. PREPARATION FOR OPERATION/START-UPThe following items should be checked before attempting to operate the dryer:1. Read ALL "CAUTION,"

37J. PREOPERATIONAL TESTSALL dryers are thoroughly tested and inspected before leaving the factory. However, a preoperational testshould be performe

38Electrically Heated Dryersa. Check to insure that electric oven/contactor assembly is activating.4. Make a complete operational check of ALL safety

398. REVERSING MODELS ONLY - basket (tumbler) dryer should never be operated with less than a 30 lb.load (dry weight). The size of the load will affec

40L. SHUT DOWN INSTRUCTIONSIf the dryer is to be shut down (taken out of service) for a period of time, the following must be performed:1. Discontinu

41SECTION IVSERVICE/PARTS INFORMATIONA. SERVICE1. Service must be performed by a qualified trained technician, service agency, or gas supplier. If

42SECTION VWARRANTY INFORMATIONA. RETURNING WARRANTY CARD(S)1. Before any dryer leaves the ADC factory test area, a warranty card (ADC Part No. 1122

432. Each part must be tagged with the following information:a.Model number and serial number of the dryer from which part was removed.b. Nature of f

44SECTION VIROUTINE MAINTENANCEA. CLEANINGA program and/or schedule should be established for periodic inspection, cleaning, and removal of lint fro

45STEAM MODELS - clean the steam coil fins. We suggest using compressed air and a vacuum cleaner withbrush attachment.WARNING: When cleaning steam coi

Table of ContentsSECTION IIMPORTANT INFORMATION ... 3A. Receiving and Ha

46SECTION VIIPROCEDURE FOR FUNCTIONAL CHECK OFREPLACEMENT COMPONENTS1. Microprocessor (computer) Boarda. Upon completing installation of the replac

47Verify that the motor(s) heat, and door indicator lights on the back side of the microprocessor(computer) board are lit. (refer to the illustration

48 d. Open main door. The dryer must stop and ALL output indicator lights on the back side of the micro- processor (computer) board must go out.

49SECTION VIIIREVERSING TIMER SPIN/DWELLADJUSTMENTSDual timer models with "reversing option" have an electric reversing timer in the electr

50SECTION IXTECHNICAL INFORMATIONA. DATA LABELContact American Dryer CorporationWhen contacting American Dryer Corporation certain information is r

51THE DATA LABEL1. MODEL DRYERThe model number is an ADC number which describes the size of the dryer and thetype of heat (gas, electric, or steam).2

ADC 113001 1- 09/11/97-50 2* 01/12/98-50 3- 04/16/98-504* 08/11/98-100 5* 12/07/98-100 6- 09/21/99-1007- 01/03/00-200

SECTION VIROUTINE MAINTENANCE ... 44A. Cleaning ...

3SECTION IIMPORTANT INFORMATIONA. RECEIVING and HANDLINGThe dryer is shipped in a protective stretch wrap cover with protective cardboard corners an

4B. SAFETY PRECAUTIONSWARNING: For your safety, the information in this manual must be followed to minimize therisk of fire or explosion or to preven

57. A program should be established for the inspection and cleaning of lint in the heating unit area, exhaustduct work, and inside the dryer. The fre