American Dryer Corp. ADG-330D Installation Manual

ADG-320D and ADG-330D24 VAC Phase 5Dual Microprocessor Controller (DMC)Mechanical/ElectricalService ProceduresAmerican Dryer Corporation88 Currant Roa

6IMPORTANT: When removing the gas valve train assembly, be careful not to snag or damage the gasvalve train wiring disconnected in Step #6.8. Reverse

75. Pull up the two (2) metal fingers where the door switch harness is secured to the frame and right side panelof the dryer.6. Remove ALL nine (9) sc

84. To disassemble bracket assembly from dryer, disconnect the two (2) harness connectors.5. To remove the temperature sensor and the connecting harne

910. The belt will come out from the front of the dryer between the basket (tumbler) and the wrapper.11. Reverse procedure to install new belt.IMPORTA

1014. Align impellor (fan/blower) to the center of the blower housing hole and remove impellor (fan/blower) bygrasping fan with both hands and pulling

11J. TO REMOVE/REPLACE IMPELLOR (FAN/BLOWER)1. Discontinue power to the dryer.2. Remove the lint drawer, the control/lint door, and the control box f

1214. The impellor (fan/blower) must now be adjusted/centered in the blower housing. Align the center of themotor shaft (at impellor [fan/blower]/sha

13L. TO REMOVE DUAL MICROPROCESSOR CONTROLLER (DMC) COMPUTER PANEL ASSEMBLY1. Discontinue power to the dryer.2. Remove the lint drawer and the co

14IMPORTANT: When installing the new Dual Microprocessor Controller (DMC) computer, make surethat the transformer on the DMC computer is located at th

15O. TO REPLACE COIN ACCEPTOR1. Discontinue power to the dryer.2. Remove the lint drawer and the control door from the dryer (follow Lint Drawer and

Retain This Manual In A Safe Place For Future ReferenceAmerican Dryer Corporation products embody advanced concepts in engineering, design, and safety

16Q. BASKET (TUMBLER) ALIGNMENT - VERTICAL (REFER TO PAGE 17)1. Discontinue power to the dryer.2. Remove the upper half of the rear split back guard

17b. To decrease gap R, loosen (turn counterclockwise [CCW]) adjustment bolt B and tighten (turn clockwise[CW]) adjustment bolt A.c. To increase gap L

18S. TO REPLACE BASKET (TUMBLER) AND/OR BASKET (TUMBLER) SUPPORT1. Discontinue power to the dryer.2. Remove the lint drawer and the control/lint

1914. Make the necessary vertical alignment and lateral alignment adjustments (follow Basket [Tumbler] VerticalAlignment and Basket [Tumbler] Lateral

204. Remove front panel from the basket (tumbler) being serviced (follow Front Panel Removal Procedurein Section E).5. Remove belt from dryer (follow

21V. TO REPLACE 330º (BURNER) HI-LIMIT SWITCH (THERMOSTAT)NOTE: The 330º (burner) hi-limit switch (thermostat) is located on the burner box chamber a

22X. TO REPLACE MAIN DOOR SWITCH1. Discontinue power to the dryer.2. Open the main door completely.3. Remove the two (2) Phillips head screws holding

23Z. TO REPLACE IGNITOR/PROBE ASSEMBLY1. Discontinue power to the dryer.2. Remove the lint drawer, the control/lint door, and the gas valve train ass

2410. Reinstall the control/lint door and the lint drawer removed in Step #3.11. Open ALL shutoff valves closed in Step #2.12. Reestablish power to th

2513. Reestablish power to the dryer.CC. TO REPLACE COIN VAULT1. Discontinue power to the dryer.2. Remove both the upper and lower lint drawers and t

IMPORTANTYOU MUST DISCONNECT AND LOCKOUT THE ELECTRICSUPPLY AND THE GAS SUPPLY OR THE STEAM SUPPLY BEFORE ANYCOVERS OR GUARDS ARE REMOVED FROM THE MAC

26EE. TO INSTALL NEW MAIN DOOR GLASS1. Remove the main door assembly from the dryer (follow Main Door Removal Procedure in SectionDD).2. Lay main doo

273. Remove the main door switch housing from the front panel (follow Main Door Switch ReplacementProcedure in Section X).4. Disassemble main door hin

28SECTION IIITROUBLESHOOTINGThe information provided is a quick reference to help isolate the most probable component(s) associated with thedifficulty

29D. The dryer will not stop, even with no cycle (light emitting diode [L.E.D.] display reads “FILL”)in progress...1. Failed motor contactor/relay.E.

303. Parameter in Program Location 01 (PL01) set incorrectly.a. Bad coin program should be set for “bCrS” and not “bCLO.”I. Dual Microprocessor Contro

31K. Dual Microprocessor Controller (DMC) computer light emitting diode (L.E.D.) display reads“SEFL”...The “SEFL” display condition indicates a rotati

32If dryer does not have optional battery back up...1. Loose connection somewhere in the power sourc to the dryer.2. Loose connection in main power ci

334. Failed Direct Spark Ignition (DSI) module.5. Failed gas valve.R. No heat (gas models only)...ignitor sparks, burner goes on and off right away...

344. Failed steam damper 24 VAC pneumatic solenoid switch.5. Failed steam damper piston.U. Dryer operates, but is taking too long to dry...1. Exhaust

35W. Dryer is making scraping noise at basket (tumbler) area...1. Check for object(s) caught in the basket (tumbler) wrapper area.2. Basket (tumbler)

IMPORTANTPLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on theequipment and specified in the installation manual included with the dryer.WARNINGDRYER

36SECTION IVELECTRICAL TROUBLESHOOTINGNOTE: Diagrams used in this section include: B474721, B472611, B483751, and ALL the revisions(a revision is the

37If voltage is present:a. Manually push down the top of the contactor. If motor turns, replace the contactor.b. If motor does not turn, problem is b

387. If no voltage, replace the computer.D. “No Heat” Condition (electric models)NOTE: The following sections must be performed with the appropriate o

39NOTE: In the following steps, when checking the voltage leave one of your meter leads attached toterminal block #7 or any good ground connection.NOT

404. Check for voltage on pin #2 (yellow wire) of the computer 9-pin connector (top 9-pin connector is for thetop basket [tumbler] and bottom 9-pin co

41SECTION VDATA LABEL INFORMATIONA. DATA LABELContact American Dryer CorporationWhen contacting American Dryer Corporation, certain information is re

42THE DATA LABEL1. MODEL NUMBERThe model number is an ADC number, which describes the size of the dryer and thetype of heat (gas, electric, or steam).

43B. TESTING AND ADJUSTING GAS PRESSUREThere are two (2) types of devices commonly used to measure water columnpressure. They are spring/mechanical-

44C. L.E.D. DISPLAY CODESA Automatic Cycle (Slope Program Factor)ACOn Accumulative CoinAdrt Maximum Auto Dryness TimeAFAt Amount for Additional TimeA

45SECTION VIPHASE 5 DUAL MICROPROCESSOR CONTROLLER (DMC)SYSTEM DIAGNOSTICSALL major circuits, including door, lint drawer, microprocessor temperature

Table of ContentsSECTION IROUTINE MAINTENANCE ... 3A. Cleaning ...

464. “Hot”a. Indicates a possible overheating condition. The Phase 5 Dual Microprocessor Controller (DMC) computermonitors the temperature in the dry

472. “HEAT” Output light emitting diode (L.E.D.) Indicatora. If the dryer is started and there is no heat, yet the Phase 5 Dual Microprocessor Control

48SECTION VIIPHASE 5 DUAL MICROPROCESSOR CONTROLLER (DMC)PROGRAMMING LIMITSPhase 5 Dual Microprocessor Controller Programming LimitsProgramLocationPar

ADC 450303 1-04/04/94-10 2-06/03/94-100 3*11/21/94-2004 - 05/08/95-50 5*10/30/95-200 6*12/03/96-2007 - 01/30/98-50 8*06/05/98-50 9-09/10/98-10010 - 08

SECTION IIITROUBLESHOOTING ...28SECTION IVELECTRICAL TROUBLESH

3SECTION IROUTINE MAINTENANCEA. CLEANINGA program and/or schedule should be established for periodic inspection, cleaning, and removal of lint fromva

4Remove lint accumulation from around the openings in the dryer’s back panels.Remove lint from gas valve burner train area with a dusting brush or vac

5SECTION IIMECHANICALA. TO REMOVE LINT DRAWER1. Pull out lint drawer 3/4’s of the way (approximately 20 inches [50.8 cm]).2. Reach up into the back o