American Dryer Corp. AD-100 User Manual

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IMP ORT AM T.

INSTRUCTIONS TO BE FOLLOWED IN THE EVENT GAS IS SMELLED BY THE USER. THESE INSTRUCTIONS SHOULD BE PLACARDED AND POSTED IN A PROMINENT LOCATION.

KEEP THIS MANUAL IN A SECURE PLACE FOR FUTURE REFERENCE.

THE PURCHASER SHOULD CONSULT THE LOCAL GAS SUPPLIER FOR PROPER

CQf ïïE NT S

SECT IO N VI

SECT IO N VII

SECT IO N VII I

INSTALLATION PROCEDURES

OPERATIONAL SEQUENCE ADG-100

OPERATIONAL SEQUENCE ADE-100

OPERATIONAL SEQUENCE ADS-100

OPERATING INSTRUCTIONS

MAINTENANCE

SERVICING ELECTRICAL CHARACTERISTICS

SERVICING

PAGE

6-1

7-1

7-3

7-4

7-5

7- 6

8- 1

8-4

SECT IO N IX

SECT IO N X

TROUBLE CHART

EQUIPMENT ILLUSTRATIONS ^ DESCRIPTIONS

TECHNICAL DATA

C A U T I O N - F O R Y O U R S A F E T Y

DO NOT S TOR E OR U SE GA SO LIN E OR O THE R FLA mA BL E

VAPO RS A ND LI QU ID S I N TH E V IC IN IT Y O F THI S OR A NY

OTHE R AP PL IAN CE

8- 13

9- 1

10-1

SECT IO N VI

INST Al lA TIQ N

Except where conditions do not allow, the dryer should be handled in an upright position at all times. The console may be removed from the base after uncrating

(See Figure 3 and 4, Page 10-5) if headroom is limited. Installation should be

performed by competent technicians in accordance with local and state codes. In

the absence of these codes, installation must conform to applicable American National Standards: ANSI Z223.1-1974 (National Fuel Gas Code) or ANSI Cl-1978 National Electric Code).

UNCR AT IN G.

packing materials. Remove front and rear skid runners (2 bolts. . .each runner).

LOCA TI ON O F D ^E R.

to rear wall for e

dryer by using metal shims under the 4 support plates (See Figure 4, Page 10-5).

Shims should not be less than 4 inch squares.)

DRYE R EN CLO SU RE .

A minimum clearance of 5 inches is suggested between dryers or adjacent sidewall

structures. Head clearance should not be less than 15 inches, except along the

front of the console which may be closed in if desired. (Allowance must be made for opening the control door.) Minimum clearances of 0 inches are permitted from floor, sides, and rear of dryer, and 6 inches from top of dryer to nearest combustible surfaces.

EXHA US T DUC T FR ESH A IR S UPP LY .

on Page 10-2.

Air supply must be given careful consideration to assure proper performance of each

dryer. An unrestricted source of air to provide for 1700 to 2100 cfm is proper for all models except the super steam dryer which requires a 3000 cfm free air supply. It is suggested that an air entrance of 3 to 4 square feet be provided for each dryer requiring 1700 cfin supply air and an entrance of 5-6 square feet for each super steam model. Allowance should be made for remote locations of air entrances or constricting passageways, and also for register/louArre restrictions. Further allow ance should be made where dryers are located at excessive altitudes or predominantly low pressure areas. Additional detailed information is provided on Page 10-3.

Remove slatted crating, sidewall sills, protective cover, and all

IVbve the dryer into position. (Allow two feet of clearance

ease of installation and possible future servicing. Level the

Adjacent structures should be made of non-combustible materials.

Exhaust duct requirements are discussed

ELEC TR IC AL RO VE R CON NE CT ORS .

(30 power) extending out m

the rear left of the dryer,

be #14 AWG minimum.

Check data plate located on the upper rear for proper machine voltage and amperage requirements.

Wire splicing and conduits should be in accordance with local or state reguJations

and all work should be performed by properly licensed and competent electricians.

Steam and gas dryers are provided with 3 leads

the side of the console (upper) junction box located at

These leads are #16 AWG wires. The supply wiring should

6-1

In the absence o£ such codes, all electrical construction and workmanship must

conform to the applicable requirements of the National Electric Code (ANSI Cl-1978).

Line power source requirements are shovm on the motor controls diagram located on the inner side of the Reset (L.H. side) panel. Care must be taken to assure that the impeller rotates in the direction of the arrow shown on the label located on the impeller motor. Each dryer must be externally fused, NOTE: There are no

internal fused circuits on gas or steam dryers.

Actual voltage and current should be measured to insure proper operation of the dryer.

(Motors are protected from overload but continuous operation of the motors at above normal temperatures due to low voltage supply will greatly reduce their operating life.)

GRO UND IN G.

accordance with local and state codes. In the absence of these codes, grounding must conform to applicable requirements of the National Electric Code (ANSI Cl-1978). A grounding lug is provided within the console (upper) junction box for this nurpose.

ELEC TR IC DRYE RS .

block for connecting the 3 proper size power cables, and a grounding lug identified for that purpose.

Supply cables must be of copper and all 3 cables should be passed through one large conduit. All electrical work should be performed by qualified electricians

in accordance with electric codes of the locale. In the absence of local electrical construction codes, all electrical power, connections, including conduits, fuse or circuit breakers, housings, wiring, wire terminations, insulation, etc. must conform, to applicable requirements of the National Electric Code (ANSI Cl-1978).

GAS CO NN ECT OI ^.

to the upper rear of the dryer. (See Figure 41, Page 9-14) Proper size of gas supply piping should be determined by the local gas sunplier and all piping connections should be performed by qualified technicians in accordance with codes of the locale. In the absence of local codes, the gas supply installation must conform to the applicable requirements of the National Fuel Gas Code (ANSI Z223.1-

1974).

Access to the gas valve is via the control door at the front of the dryer and is provided with a tap for regulating the gas pressure (natural or mixed gas). The pressure is regulated to 4" water column pressure at the factory. (No Pressure

regulation is provided for dryers equipped to operate with liquid petroleum gases.

Your gas supplier must regulate the pressure of the gas supply. The dryer should be operated at 10 1/2" W.C. pressure.) Add an external shut off for servicing

ease.

A ground (earth) connection must be provided and installed in

All electric dryers are 30 and provided with a 3 pole terminal

All gas dryers are provided with a 3/4" inlet pipe extending

6-2

STEA M CO NNE CT IO NS.

the rear of the heating coil unit (See Figure 1, Page 10-4) and are 1” NPTF and 1/2" NPTF respectively. Steam dryers are equipped for operation at 125 psig maximum. The dryer may be operated at reduced pressures as low as 15 psig (with correspondingly reduced drying rate). Low pressure operation re quires large supply lines. Properly sized steam supply mains, condensate returns, and controls are essential to satisfactory performance. All steam connections should be performed by qualified technicians in accordance with local codes, and operation and system maintenance should be provided by properly licensed and competent personnel. Connections between steam supply and coil must be provided with flexible hoses or couplings to eliminate piping strains.* Clean lint and dirt from between coil fins regularly for

maximum air flow.

Both supply and return steam connections are located at

DRYI NG :

with flammable or explosive soil must be thoroughly and carefully washed.

Drying can release volatile vapors which may result in fire or explosion. Drying time depends upon the size of load being dried, the amount of moisture

left in the clothes by washer-extractor (extraction) type and mass of clothes, air flow, and adequate heat. "Browning" of cloth is usually due to insufficient rinsing. Do not dry plastic or rubberized articles in tumblers. Damage

to clothes can result from improper operation or installation, or material not

suited to tumbler drying.

LINT S CR EE N:

WARNING: Dry only articles that have been washed in water. Articles

CAUTION: Keep lint compartment clean.

GENE RA L MAM EN AN CE AN D SE RVI CE S

JANI TO RI AL:

dryer should be kept clean. Besides the usual frequent cleaning of the lint

compartment, lint should also be removed from between the basket and the wrap pers; from up and behind the front panel in the lint compartment area; gathered

from around the loading door switch and thermostat connections and wiring; from

the burner area; and from within the motor and operator controls enclosures.

Lint should also be removed from the air vents of the motor frames, and from

inside the electrical junction boxes on the rear of the dryer. Exhaust ducts

and make-up air inlets should be examined periodically, and freed of lint at

elbows and grills. Care should be taken not to pile articles near make-up

air vents, exhaust duct exits, over the top or at the back of the dryer. These

good housekeeping suggestions should be performed at least three or four times

a year, and more frequently as conditions may indicate.

Clothes drying tumblers produce lint and the area around each

ELT CA RE :

applied. Cracked or seriously frayed belts should be replaced. Always replace

both belts. Tighten loose belts when necessary and check belt alignment

*FAILURE TO PROVIDE FLEXIBLE FITTINGS AND OTHER STFAM SUPPLY ^ CONDENSATE RETURli LINE COMPONENTS (PG. 10-7) WILL VOID THE WARRANTEE COVERAGE ON YOUR HFAT EXCHANGERS

Motor and drive belts should be examined and a belt conditioner

6-3

LUER IC AT IQf ^:

Tumbler and idler bearings equipped with grease fittings should be lubricated

twice annually with a general purpose lithium base grease. Do not over grease. Rotate shaft and add grease slowly until it begins to show at the seals'. Do

not use animal or vegetable base lubricants.

Motor bearings are sealed and do not require lubrication service.

GAS CO NN ECT IO NS :

pilot line connections, gas manifold orifices, etc.) should be checked two or

three times annually for leakage that might be caused by vibration. Use a mild soap solution. Do not use a flame at any time to check for leaks.

EŒCT RI CA L CON NE CT ION S:

examined for looseness a week after initial installation, again after 3 or 4

weeks of operation, and thereafter two or three times annually.

Non-permanent gas connections (unions, flared tube fittings,

Electric service and grounding connections should be

6-4

PRESTART CONDITIONS.

SECT IO N VII

OPER AT IO NAL S EQ UE NCE m CEL A DG -1 00

Depress manual reset thermostat (Ulus. #5, page 9-7). Close lint door, main door, and control door.

1. Auto only dryer - display shows F_D_. a. Load fabric by depressing corresponding button (i.e. 1 thru 9).

b. Load dryness by pressing corresponding button (i. e. 1 (less dry)

to 9 (more dry) ).

c. Depress "Enter/Start" button.

2. Auto-Manual dryer - display shows fill.

Auto selected - see above. Manual selected. a. Load drying time by depressing corresponding buttons (i.e. 1 min.

thru 99 min.).

e. f.

Depress "Enter/Start” button. Load cooling time by depressing corresponding buttons (i.e. 1 min. thru 99 min.). Depress "Enter/Start" button. Load fabric by depressing corresponding button (i.e. 1 thru 9). Depress"Enter/Start" button.

OPER AT IO N

Depressing the "Enter/Start" button as a final entry of the prestart condition, forwards a command signal from the computer chip energizing the motor control relay(s), and starts the motors. At the same time, a signal is also sent ener gizing the coil on the heat circuit relay. The valve is then energized after

the air-switch has been closed.

On the operating panel, the LED display shows that the dryer is operating in the drying mode, and also the drying time entered. The air switch closes soon after the motor is started. The glo-bar is ignited, and the primary valve is opened. Gas does not flow because of the normally closed flame switch (I.R. sensor switch) prevents the secondary valve from opening. In about 10-15 seconds the glo-bar is fully heated (from a "cold" 70°F. start). Its radiation

heats up the Bi-metallic flame switch, and the switch opens (25 - 40 seconds

later depending on its sensitivity and room temperature) permitting the gas to flow through the secondary valve. The glo-bar is essentially extinguished, but in this short period remains hot enough to ignite the gas. The gas flame radi ates enough heat to keep the I.R. flame switch open until the micro processor

heat circuit relay opens to shut off the gas.

When both the flame switch and heat circuit relay reclose, the secondary

valve closes and the ignition cycle is restarted. The temperature of the hot

air will continue to drop while either the heat circuit relay or the flame switch remains open. After both are closed, the air temperature continues to fall until the glo-bar is sufficiently reheated and radiates enough heat to reopen the flame switch since the glo-bar and flame switch are much warmer than they were at the start of the first ignition cycle, the time to recycle is re duced to 25-30 seconds total.

7-1

When the temperature at the temperature transducer has risen to the cut off

temperature corresponding to the heat value entered during prestart, the gas valve solenoid is de-energized, the valve closes, and the flame is extinguished. After 15 seconds, the gas valve solenoid is re-energized and ignition is reestab

lished by the glo-bar system. This cycle continues until the programmed drying

time has expired. This will then de-energize the P.C. mounted gas valve solenoid

and shuts off gas flow to the burner. The motor relay(s) remain energized allow

ing the blower and tumbler to rotate without heat.

On the operating panel, the LED display shows the dryer has entered the

cooling cycle, and will continue to run for the duration of cooling time entered

in the prestart condition, or approximately 5 minutes in the automatic mode.

When the cooling time has expired, the motor relay(s) are de-energized. The display on the operators panel shows "CCOO" (Cycle Complete - Zero Time Remaining).

Opening the door at the end of the cycle will remove "CCOO" from display and

"FILL" or F_D_ will return. If the door is opened during the cycle, the machine will turn off completely. The cycle may be continued by closing the door and pressing the "ENTER/START" button.

The motors are protected by an internal overload thermostat. If the blower

motor overheats, it will stop. The gas flame will be extinguished within a few

seconds when the air switch opens. If the air flow switch fails to open, the high limit thermostat will be heated by the standing burner flame and open to

de-energize the gas valve solenoid, and shut off the gas flow to the burner.

The temperature transducer is protected against failure by the micro

computer system. Should the transducer fail, be removed from its holder, or be subject to short or broken wire, the P. C. mounted relay will become de

energized and shut power to the gas valve and motor relays. Should this system

fail, the manual reset thermostat will open when its higher temperature (approx.

225°) is reached. It will remain open until manually reset.

7-2

OPERATIONAL SEQUENCE MODEL ADE-100

PRESTART CONDITIONS.

Same as ADG-100

OPER AT IO N

Depressing the "Enter/Start" button as a final entry of the prestart condition,

forwards a command signal on the P.C. board. This permits the motor relay con tactors to be energized and starts the motors. At the same time, a signal is also sent energizing the coil on the heat circuit relay. The air flow switch closes soon after the blower motor is started and the coil of the oven contactors are energized to supply power to the oven elements.

When the temperature at the temperature transducer has risen to the cutoff temperature corresponding to the heat valve entered during the prestart, the heat circuit relay on the control panel opens, the oven contactor coils are de energized and the oven contactors open to shut off power to the oven elements.

After 15 seconds, or approximately lOop, the oven contactor coils are re-energized

and power is returned to the oven elements. This cycle continues until the drying time selected or the level of dryness selected has expired.

On the operating panel, the LED display shows the dryer has entered the

cooling cycle, and will continue to run for the duration of cooling time entered

in the prestart condition, or approximately 5 minutes in the automatic mode.

When the cooling time has expired, the P.C. mounted motor relay is de-energized

thus de-energizing the motor contactor relay. The display on the operators panel

shows "CCOO” (Cycle Complete - Zero Time Remaining).

Opening the door at the end of the cycle will remove "CCOO" from the display

and return "FILL” or F_D_. If the door is opened during the cycle, the machine

will turn off completely. The cycle may be continued by closing the door and

re-pushing the "Enter/Start" button.

The motor is protected by an internal overload thermostat. If the motor overheats, it will stop. The power to the oven will be shut off within a few seconds when the air switch opens. The dryer can be restarted after the over

load motor has sufficiently cooled. If the air switch fails to open, the high limit thermostat will be heated by the elements and open to de-energize the

oven contactor coils and shut off power to the elements.

The temperature transducer is protected against failure by the micro

computer system. Should the transducer fail, be removed from its holder, or be

subject to short or broken wire, the P.C. mounted relays will become de energized and shut power to the gas valve and motor relay. Should this system fail, the manual reset thermostat will open when its higher temperature is reached. It will remain open until manually reset.

7-"3

OPERATIONAL SEQUENCE mOEL AD8-100

PRESTART CONDITIONS.

Same as ADG-100

OPER AT IO N

Depressing the "Enter/Start" button as a final entry of the prestart condition forwards a command signal from the computer chip energizing the motor control relay(s), and starts the motors. At the same time, a signal is also sent energizing the coil of the heat circuit relay, and the coil on the steam valve solenoid is energized to open the valve to let steam flow to the heat exchangers.

When temperature at the temperature transducer has risen to the cut off

temperature corresponding to the heat valve entered during the prestart, the heat circuit relay on the control panel opens, the steam valve closes and shuts off steam to the heat exchangers. After 15 seconds, or approximately lOop, the

steam valve is energized to open the valve to let the steam flow to the heat exchanger. This cycle continues until the drying time selected or the level of dryness selected has expired.

On the operating panel, the LED display shows the dryer has entered the cooling cycle, and will continue to run for the duration of the cooling time entered in the prestart condition, or approximately 5 minutes in the automatic

mode.

When the cooling time has expired, the motor relay(s) are de-energized. The display on the operators panel shows "CCOO" (Cycle Complete - Zero Time Remaining).

Opening the door at the end of the cycle will remove "CCOO" from the dis

play and return "FILL" of F_D_. If the door is opened during the cycle, the machine will turn off completely. The cycle may be continued by closing the

door and pressing the "Enter/Start" button.

The motors are protected by an internal overload thermostat. If the

motor(s) overheat they will stop. The steam valve remains open, but without

air circulation, the heat is not passed to the load. The dryer can be re

started after the motor has sufficiently cooled.

The temperature transducer is protected against failure by the microcomputer

system. Should the transducer fail, be removed from its holder, or be subject to short or broken wire, the P.C. mounted relays will become de-energized, and shut power to the gas valve and motor relays. Should this system fail, the

manual reset theimostat will open when its higher temperature is reached. It will remain open until manually reset.

7-4

OPER AT IN G I NS TR UCT IQ f^

All dryers are thoroughly tested and inspected before leaving our plant. However,

a pre-operational test should be taken before the dryer is used. It is possible that adjustments have changed in transit.

gTORT/y The tumbler of the dryer is treated with a protective coating. We suggest

tumbling old clothes using a mild detergent to remove this coating.

Reversing Timer Control: Adjust dip switches to assure that the tumbler stops completely between reversing cycles and remains stopped for at least two seconds.

HOW TO O PE RAT E TH E D RY ER

A. Read the danger warning label affixed to the main door. B. Put the clothes in the dryer making certain that the weight of the

clothes does not exceed one hundred pounds when dry.

C. Make certain that the main door is closed all the way; otherwise,

the dryer will not start.

1. If Auto only dryer, display reads F_D_. a. Load fabric by depressing corresponding button (i.e. b. Load dryers by depressing corresponding button (i.e.

dry) - 9 (more dry) ).

c. Depress "Enter/Start” button.

2. If Auto/Manual dryer, display shows "FILL". Auto selected - see above Manual selected as follows:

Load drying time by depressing corresponding buttons

(i.e. 1 minute - 99 minutes). Depress "Enter/Start" button. Load cooling time by depressing corresponding buttons

(i.e. 1 minute - 99 minutes). Depress "Enter/Start" button.

Load fabric by depressing corresponding button (i.e. 1-9).

Depress "Enter/Start" button. The dryer will now start. The LED display will show cycle

and drying time. When the drying cycle is complete the

controller will change to cooling time, indicated by the

first two LED digets displaying CL, and will display total

elapsed time from start. When the machine stops, remove the garments immediately. Then hang or fold to reduce wrinkling.

If for some reason the tumbler or any other piece of equipment

on this dryer does not function properly, consult the Trouble

Chart in Section VIII of this manual.

1-9). 1 (less

7-5

miff fE NA NC E

CLfA NI NG

Be sure the snap action thermostat is kept free from lint accumulation. Clean

the lint from the bottom of the lint chamber and from the lint screen a minimum

of once a week. These cleaning suggestions are important for efficient opera

tion.

m ADJUsirefi should be done periodically.

le bearings are prelubricated with the proper amount of high quality grease. Though greasing interval depends on quality of grease and operating conditions of the bearings, we suggest you grease the bearings monthly. See the instruc tions printed on the motor back plate for lubrication.

DOO R s wu m

Periodically check door switch, located behind lower front panel for lint buildup. Switch body can be cleaned by opening lint door and reaching up behind front panel. Shut electrical power to dryer OFF before cleaning switch.

7-6

SECT ION

Vili

SERVICIN G

ELECTR IC A L C H A R A C T E R I S T I C S

Note: This section refers to the characteristics and features of the Phase 1

and Phase II computer controls. Phase I Systems were equipped on dryers manufactured prior to June 1, 1982, and have six dip switches located on the rear of the board. Phase II Systems are equipped on dryers manufactured after June 1, 1982,

and have eight dip switches.

TE№E RA TU RE TR AN SD UCE R.

transducer. Accuracy is +10° F the value set at the dip switches for coin operated or via the keyboard on standard machines.

BOO R S WI TCH .

(gold color) must be connected to the yellow wires leading to it. The other

set of contacts are silver color and must be connected to the gray colored wires

only.

DISP LA Y LE D

the Phase I Display, the first decimal point on the left indicates the heat circuit

is on. The second point indicates the motor circuit is operating. On reversing

dryers, the third decimal point light indicates the tumbler is rotating in the

forward direction.

On the Phase II Display, the first decimal point on the right indicates the motor

circuit is operating. The second decimal point indicates the heat circuit is on.

The third and fourth decimal points are for reversing dryers. The third dot

indicates the tumbler is rotating in the reverse direction. The fourth dot indicates the tumbler rotating forward.

DIP SW IT CH AS SE MM

position SpST switch mounted on the rear of the controller. It is used to set

the following.

The door switch is a special double pole switch. One set of contacts

The display is a four digit, seven segment red LED display. On

The dip switch assembly on the Phase I System is a six

(Temperature sensor) Temperature is measured by a thermal

OPEN

No. 1

No. 2

No. 3

No. 4 No. 5

No. 6

The dip switch assembly on the Phase II System is an eight position SPST switch mounted on the rear of the controller. It is used to set the following.

Auto/Manual

50 HZ

CLOSED

Reverse/No Reverse Selectability Add 4 Seconds Rev. Tumbler Stop Time Add 8 Seconds Rev. Tumbler Stop Time Temperature Display Auto Only

60 HZ

8-1

OPEN

CLOSED

No. 1 No. 2 Add 4 Seconds Rev. Stop

No. 3 Add 8 Seconds Rev. Stop No. 4 No. 5

No. 6 Display Degrees F°

No. 7 1 Reverse Per Minute

No. 8 Auto Dryness X 3

Phase II - No dip switch change is

REVE RS IN G D RY ER S

forms. The first is a continuous reversing, the other offers the operator the choice of whether reversing action is desired or not. On the reversing selectable

dryer, the letters "SR " appear in the display as the final data entry step.

If reversing action is desired, pressing "ENTER/START" starts the dryer in the reversing mode; pressing "0" starts dryer operating in a forward rotation only.

The tumbler stop time between rotation is preset lat the factory. However, the

tumbler should come to a complete stop (with a full load of clothes) between rotating directional changes. If it does not, additional stop time is required. This is accomplished through dip switches #2 and #3. When using the Phase I System, with both switches in the open position, six seconds of stop time is provided. Closing either switch, or both, provides additional time for a combination of 6, 10, 14, or 18 second stop time. When using Phase II, Switch Nos. 2 and 3 in the closed position, 6 second stop time is provided. Opening either switch, or both, provides additional stop time.

Auto/lianual

HZ,

Phase I - For 50 HZ, open dip switch #6. For 60 HZ, close

Dryers equipped with reversing action are available in two

Reverse/No Reverse Seiectability

Display Temperature

Auto Only

Display Degrees C°

2 Reverses Per Minute

Auto Dryness X 1

required.

Pin No. 9 is for the forward rotation contactor.

Pin No. 8 is for the reverse rotation contactor.

Pine No. 15 is for the impelling contactor.

REVE RS ES PE R MI NU TE

the computer can be set for the number of reverses per minute desired. By opening dip switch number 7, the dryer will change tumbler direction once ner

minute. Closing switch number 7, reverses the direction twice per minute.

REVE RS IN G S pC TA BI LIT Y

seiectability, display during data entry.

A. Press "Enter/Start" if reversing action is desired; or

B. Press "0" for nonreversing. Machine will start the cycle.

Opening Dip Switch Number 1, places the dryer in the reversing seiectability mode.

(Phase II Only) On dryers equipped with reversing action,

For reversing dryers with "Reverse/No Reverse"

shows "SR

" (Select Reversing Action) as the final command

8-2

AUTO C YC lf RA NG E TRI PL ER.

greater than 9 is required, opening Dip Switch Number 8 triples the dryness

level range, increasing the range total to 27.

(Phase II Only) In the event that a dryness level

IBEEBATIIRE DISPLAY The displaying o£ operating temperature in the dryer through

the LEDS is available to the service technician. Program dryer into a normal

drying cycle and start. While the dryer is running, close Dip Switch Number 4. Operating temperature can now be viewed through the display. On Phase II Computer panels, the temperature can be viewed in either Farenheit or Centigrade. Dip

Switch Number 6 in the open position displays temperature in Farenheit, closed

displays temperature in centigrade.

DISP LA Y COD ES

FILL - Empty machine prior to data entry (AUTO/MANUAL dryer) F_D__ - Display prior to data entry when auto cycle is selected or

indicates empty machine for auto only machine. Ld - Load drying time (MANUAL mode) Lc - Load cooling time (MANUAL mode) F - Fabric selection (MANUAL mode) Sr - Select reversing (reversing dryers with REVERSE/NO REVERSE

selectability) Dr - Machine is operating in drying mode.

Cl - Machine is operating in cool down mode. CC - Cycle complete, dryer has finished a complete cycle and

shut off.

DSFL - Dryer Sensor Circuit Failure. Most likely caused by loose wiring

connection at sensor bracket (Page 9-7, Figure 4).

DOOR - Door Switch Circuit Failure. Check wiring connections to door switch,

also is displayed if attempt is made to start dryer with door open.

8-3

SECT IO N Vil i

SERV IC IN G

GENE RA L;

requiring POWER-ON should be made only by fully qualified electricians.

opened. It is located in the lower right hand comer of the front panel, (page

9-4, Figure 13).

All electrical service should be made with POWER-OFF, Any service tests

DOOR SWITCH: This switch interrupts all power to the dryer when door is

TO R EP LA CE OR A DJ UST :

a. Turn power off. b. Open lint door to gain access to switch behind front panel. c. Open main door and loosen hex nut holding switch to front panel. d. Disconnect leads to switch. e. Replace by reversing the procedure.

TUMB LE R mTQ R RE LAY :

It is located in the enclosure at the rear of the dryer. (Page 9-12, Figure 4). Two relays operate alternately to reverse the motor rotation on dryers equipped with this option,

This relay controls the power to operate the tumbler motor.

TO R EP LA CE :

a. Turn power off. b. Remove screws holding reset panel to dryer and remove panel. c. Disconnect harness from relay panel and remove bolts holding relay

panel to rear wall of enclosure.

d. Remove relay panel.

e. Disconnect leads to relay and remove relay from panel. f. Replace by reversing the procedure. Connect wiring to relay as shown

on schematic located inside the enclosure,

8-A

BLOV ER N DTO R RE I AY :

It is located in the enclosure at the rear of the dryer (Page 9-12, Figure 9,

and Page 9-13, Figure 6),

This relay controls the power to operate the blower motor.

TO R EP LA CE :

a. Turn power off. b. Remove screws holding reset panel to dryer and remove panel. c. Disconnect harness from relay panel and remove bolts holding relay

panel to rear wall of enclosure. d. Remove relay panel. e. Disconnect leads to relay and remove relay from panel. f. Replace by reversing the procedure. Connect wiring to relay as shown

on schematic located inside the enclosure.

I^IN DOOR: (Page 9-4, Figure 10)

1, To replace main door

a. Remove screws holding main door to the main door hinge block.

b. Replace with new door,

2, To replace door glass gasket (optional)

a. Press narrow slot of door gasket on to edge of door panel, cut out

starting at the bottom.

3, To replace main door glass

a. Start at the seam of door gasket at bottom of door, and spread

the gasket with a blunt blade made of plexiglass or wood, and

insert the edge of the glass. Work around the gasket with the

tool just ahead of the glass.

4, To replace door handle magnets

a. Remove flat head bolt from side of door handle.

b. Remove and replace magnets.

WNUA L RE SET I HE Rm STA T:

an excessive temperature occurs. The motors will run, but dryer will not heat.

A short cool-down period may be necessary before the push button can be reset.

Corrective action should be taken before attempting to restart the dryer. The

manual reset is located in the box housing adjacent to the lint trap in the

lint chamber. (Page 9-7, Figure 5).

TO R EP LA CE

mWM

RES ET :

a. Turn power off. b. Loosen screws securing bracket to dryer. c. Remove bracket. d. Remove screws securing manual reset to bracket.

e. Remove wires to manual reset. f. Replace manual reset, reverse procedure for installing.

This thermostat will open the heating unit circuit if

TO R EP LA CE TU FI HI R O R TU MBL ER S UPP OR T:

1. Remove lint door (Page 9-5, Figure 1)

a. Open lint door and lift out of slots in base.

2. Open control door (Page 9-3, Figure 1)

a. Remove screws and swing door up. b. Disconnect control door support rod from its holder, and insert

rod end into hole in control door stiffener.

8-5

3. Remove front panel (Page 9-4, Figure 1)

a. Disconnect wires from main door switch. b. Remove front panel screws and grommets. c. Pull bottom edge of panel away from dryer and remove panel.

4. Remove backguard (Page 9-21, Figure 1)

a. Remove nuts and washers from rear of dryer. Remove backguard,

5. Remove pulley from tumbler shaft (Page 9-8, Figure 15)

a. Remove belts from pulley. b. Remove bolts holding pulley to bushing. Thread bolts into unused

hole, and tighten to free pulley from bushing. Remove set bolts.

c. Remove pulley and key from shaft. d. Tighten bolts evenly when replacing pulley and bushing.

6. Remove tumbler assembly and tumbler shaft bearing support (Page 9-6, Figure 3).

a. Loosen set screws on both bearings,(Page 9-8, Figure 5) b. If tumbler cannot be removed easily, hold a block of wood against

end of shaft and strike with a mallet to move shaft past burrs

made by set screws. DO NOT STRIKE END OF SHAFT WITH MALLET DIRECTLY.

7. Remove tumbler from tumbler support (Page 9-6, Figure 3)

a. Remove screw from center tumbler back wall. (Page 9-6, Figure 4)

b. Remove tie rods holding txmibler to the tumbler support. Retain

shims for reassembly.

c. To replace, reverse the procedure.

NOTE: Reinstall shims as necessary to align tumbler axis with support

shaft.

TO R EP LA CE PU LL EYS :

1. Tumbler pulley (Page 9-8, Figure 15)

a. Replace pulley by reversing removal procedure (Paragraph 5 above),

2. Motor and idler pulleys (Page 9-9, Figures 16 ^ 18; Page 9-10, Figure 11).

a. Replace pulleys by reversing removal procedure (steps shows in

Paragraph 5 above),

TO R EP LA CE BE AR IN G:

1. Tumbler bearings (Page 9-8, Figure 5)

8-6

a. Remove belts and tumbler pulley.

b. Loosen bearing at set screws. c. Back off lateral alignment screws (Figure 9), d. Remove bolts from pillow block(s). e. Remove bearing(s). f. Reverse the removal procedure for re-installing (Align tumbler

horizontally with dryer \\rrapper cavity before fully tightening

the rear bearing bolts using the lateral alignment screws. Align tumbler vertically as required using the vertical align ment screws after fully tightening all bearing bolts).

2. Idler shaft bearings (Page 9-9, Figure 5)

Forward bearing (Nearest rear panel)

c. d.

Rear bearing (Nearest pulleys)

a. Remove bolts. b. Loosen set screws on both bearings.

MOT ORS :

around motor, drive belts too taut, lint blocking motor vents, bearing failure, or low voltage supply (Page 9-10, Figure 13 and Page 9-11, Figure 15).

Causes of possible overheating: overloading tumbler, air circulation

Remove belts.

Loosen set screws on both bearings.

Remove bolts from pillow block.

Pull idler shaft (with pulleys and forward bearing attached)

to rear through rear idler bearing.

Remove end retaining ring and remove bearing from end of idler

shaft.

Replace by reversing the procedure.

Align idler pulley with tumbler pulley above before tightening

bolts.

c. Remove bolts from both pillow blocks. d. Remove retaining rings and remove both bearings from idler shaft. e. Replace by reversing the procedure.

f. Align idler pulleys with tumbler pulley above before tightening

bolts.

1. To replace drive motor

a. Turn power off.

b. Remove drive belts.

c. Disconnect wiring harness from motor. d. Remove bolts holding motor to mount and replace with new motor.

Do not tighten bolts. e. Remove pulley from old motor and install on new motor. f. Align motor pulley with idler pulley and align motor shaft with

idler shaft and tighten bolts.

g. Replace belts and adjust belt tension by loosening motor bracket

mounting bolts and forcing bracket downwards. Tighten bolts.

8-7

+ 42 hidden pages

American Dryer Corp. AD-100 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CQf ïïE NT S

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ELECTR IC A L C H A R A C T E R I S T I C S

REVE RS IN G S pC TA BI LIT Y

DISP LA Y COD ES

TO R EP LA CE OR A DJ UST :

TO R EP LA CE :

TO R EP LA CE :

TO R EP LA CE TU FI HI R O R TU MBL ER S UPP OR T:

TO R EP LA CE PU LL EYS :

TO R EP LA CE BE AR IN G: