Dexter Laundry DL2X30Q Manual

. / THE
DEXTER
COMPANY
30 LB. Stack Dryer
DL2X30Q Computer
Service Procedures and Parts Data
DL2X30Q
/
"~ --~ ----~ 11
!. .. [ ·= . ··_ - ·- ..
Fairfield, Iowa 52556
www.dxtrco.com Telephone [phone] Fax [phone]
Part No. 8533-036-004 08/04

2
WARNING
FOR YOUR SAFETY, THE INFORMATION IN THIS MANUAL MUST BE FOLLOWED TO
MINIMIZE THE RISK OF FIRE OR EXPLOSION OR TO PREVENTPROPERTY
DAMEGE , PERSONAL INJURY OR LOSS OF LIFE.
IF YOU SMELLGAS:
Do Not try to light any appliace.
Do Not touch or operate any electrical switch.
Do Not use any phone in your building.
Do clearthe room, building or area of all occupants.
Do immediately call yo ur gas supplierfrom a neighbors phone. Follow the gas
suppliers instructions.
Do call the fire departmentifyour gas supplier is not available.
& WARNING
DRY ONLY FABRICS WASHED IN WATER
TO AVOID THE RISK OF FIRE, INCLUDING SPONTANEOUS COMBUSTIONS,
DO NOT DRY:
-ITEMS CONTAINING FOAM RUBBER. ORANY SIMILARLYTEXTURED
RUBBER-LIKE MATERIALS.
-ANY ITEMS ON WHICH YOU HAVE USEDA CLEANING SOLVENT OR
WHICH CONTAIN FLAMMABLE LIQUIDS OR SOLIDS, SUCH AS NAPTHA,
GASOLINE, OR OTHER OILS OR WAXES.
\
'

Table of Contents
SECTION 1
Specifications ......
.. ................................................................................ .. .......... page 6
SECTION 2
~ nstallation & Operation .... .. ....................................... .. ...................................... page 7-16
Clearances ............................................................................... .. ................................... page 7
Make up Air ......................................................... .... ...................................................... page 7-8
Electrical.................................................................................................................. .. .... page 8
Gas ............ .. .................................................................................................................. page 8
Exhaust .... ..................................................................................................................... page 8·9
Dimensions ......................................... .. ................... .... ................................................. page 10· 11
Description of Control........................................... ... .. ... .. ............................................. .. page 12
Programmed Data ......................................................................................................... page 12
DexterControl Feature Activation .......
.. ....... .... .... .. ... ... .. ............................................... page 14
Changing Programmed Data .............................................................. .. ........................ page 16
SECTION 3
Wi ri ng Schematics ......................................................... .. .. .. ............................. page 17-20
Dryer Idle--No Coins Added ............................................................ .. ............................ page 17
Coins Added--Motor Started & Running .. ......................................................... .. .......... page 17
Heat Circuit ........................................ .. .......... ...... ................................... .. ........ .. .. .. ... .. . page 17 -18
OverTemperatureThermostat ......... .. ........................................................................... page 18
Cool Down.............................................................. .... .......... .. .................................... .. . page 18
End
of Cycle.. .. .............................. .. .............................................................................. page 18
Schematic .. .............. ... .. ................................... ...... .......................... ... .. ........................ page 19
Diagram.............................................. .. ................................................................ .. ....... page 20
3

SECTION 4
Service Procedures .. ......................... .. ...... .. ..... .... . .... ...................................... .. page 21 - 27
Clothes Door .. .. ........ .. .............................. .. ............................. .. .................................... page 21
Clothes DoorLatch Adjustment ............................................................. .. .. .. ................. page 21
Door Switch...................................................................................................................page 21
Clothes DoorWindow & Gasket .................................................................................... page 21
High Limit Thermostats (burner ho using & manual reset) ............................................. page 21
Pressure Regulator ........................................................................................... .. .......... page 22
Coin Acceptor........................................................................................ .. ...................... page 22
ElectronicControl Failure Codes................... .. .............................................................. page 22
Electronic Control Diagnostic Lights ..............................................................
.. . .. .......... page 22
Electronic ControlTest Cycle .............. .. .. .. .. .......... ........................................................ page 23
Electronic Control .................. .. ........ .. ............ .... ............................................................ page 23
Membrane Switch ......................................................................................................... page 23
Temperature SensorTesting & Replacement ................................................................ page 23
TemperatureTesting .................................. ... . .... ............................................................ page 23
Front Panel (upper& lower) .................... .. .. .... .............................................................. page 23
Drive Belt................................. .. .................................................................................... page 24
TumblerPulley............................................................................................................... page 24
Intermediate Pulley & Tension Arm ............................................................................... page 24
Motor& BlowerAssembly .............................................................................................page 24
Air Flow Switch........ .. .. .. .. .. ............................................................................................ page 24
Ignition ControlTransformer& Fuse.............................................................................. page 24
Electronic Ignition Module .................. .. ............................. .. .......................................... page 25
Ignition System Check Out............................................................................................ page 25
Spark Electrode............................................................................................................. page 25
Gas Valve & Manifold .... ........... .. ..................................................... .. ............................. page 26
Main BurnerOrifice ........................... .. .......................................................................... page 26
Main Burner .................................................................................................................. page 26
Cylinder......................................... ... .. ........................................................................... page 26
4

TumblerThrough BoltAccess Cover............................................ .. .......... .. ................... page 27
Bearing Housing................................. .. .................... .. ................................................... page 27
SECTION 5
TroubleShooting ........ .. ..................................................................................... page 28-30
SECTION 6
Parts Data ......................................................................................................... page 32-46
Cabinet Group............................................................................................................... page 32-35
Door Switch Group ........................................................................................................ page
36
Bearing Housing Group............................. .. .................................................................. page 37
Burner Housing Group ................ .. ................................................................................ page 38-39
RearView ..............................................................
.. ...................................................... page40-41
TumblerGroup .............................................................................................................. page
43
Coin Box Group............................................................................................................. page 44-45
Wiring Group ................................................................................................................. page 46
SECTION 7
Maintenance............................... .. ................................................................... .. page 47-48
5

6
Section 1
Specifications
30 LB. Coin Stack Dryer
Model: DL2X30Q
Voltage
120 volts, 60 Hz. Single Phase
Dry Weight Capacity (lbs .) 2@ 30ib Each= 60Lb Cylinder Rotation
Dimensions Directio n counter clockwise
Basket Depth
Basket Diameter
Basket Volume
Door Opening
Overall H eight (with legs)
minimum
maximum
Cabinet Width
Overall Depth
Door Height (floor to
bottom of door)
Necessary ServiceClearance
Behind Machine
Temperature (degrees)-
Regular/Hot
(fac tory setting)
Pe rm anent Press/Medium
(factory setting)
Delicate/Warm
(factory setting)
Electrical
Motor H.P. (per pocket)
Running Amps (co mpl ete dryer)
Circuit Breaker (amps)
Built-in Motor Protection Circuit
Phase
Voltage 60 Hz. **
· Service
Wi re Size (min.)
27 1/2"
30"
11.25cu.ft.
22 11/16"
76 5/8"
77 5/8"
31 1/2"
47 5/16"
top 44 15/ 16"
bottom 7 5/16"
18"
150-190 F
175 F
120-170 F
150 F
110-150 F
125 F
1/2 H.P.
19.6
30
Yes
Single
120V
2 wire
plus ground
#10
Speed (RPM)
Gas
Natur al (supply line )
Natural
(b urner manifold)
L.P. (supply line)
L.P. ( burn er manifold)
Inlet Line Size
BTU Input
Venting
47
4"-10" w .c.
31/2" w.c.
11"-14" w.c .
11"W .C.
112" NPT
80,000
Exhaust Air Flow (cfm) 500
Size 2-6"
(op tional)
1- 8" (sta ndard )
Maxim
um Length
with (2 elbows)
Make-up Air
Ea ch Dryer (minimum)
Weight
Shippi ng (lbs.)
Net(lbs.)
14ft.
1 1/2
sq . ft.
737
685
** International VoltagesAvailable

Section 2
Installation and Operation
All commercial dryerinstallations mustconform with local applicable local codes or in theabsence of
localcodes,withtheNational Fuel Gas CodeANSI 2223.1A-1988. Canadianinstallationsmust
comply with currentstandard CAN/CGA-8149(.1 or .2) Installation Code for Gas BurningAppliances
or Equipment, and local codes if applicable. The appliance, when installed, must be electrically
grounded in accordance with the National Electric Code, ANSI/NFPANo. 70-1990,orwhen installed
in Canada, with Standard GSAC22.1 Canadian Electrical Code Part 1.
InstallationClearances:
This unitmay be installed at thefollowing alcoveclearances.
1. Leftside- 0"
2. Right side- O"
3. Back- 18"(Certifiedfor6"clearance: however18" is required to clean, service,
4.
5.
6.
I
Front-
Top-
Floor-
-4"
!---
and maintain thedryer).
48" to allowuseofdryer.
Refer
to figure labelled"Vertical ClearanceDimensions".
This unitmay be installed upona combustible floor.
10 "
(C)
TOP OF DRYER
1/4" MIN .J
(A)
r-
SIDE OF DRYER
-Vertical Clearance Dimensions.
Makeup Air
~
Adequatemakeupairmust be supplied to replace airexhausted by dryers on all typesofinstallations. Provide
a minimumof 1 1/2 squarefeet
of makeup air opening to theoutside for each dryer. This isa net requirement of
effectivearea. Screens,grills or louverswhich will restrictthe flow ofair must be considered. Consult the
suppliertodeterminethefreearea equivalentforthegrillbeing used.
The source ofmakeup air should be located sufficientlyawayfrom thedryers to allowan even air flow to the air
intakesof all dryers. Multiple openings shouldbe provided.
7

8
NOTE: The following considerations must be observed for gas dryerinstallations where dry
cleaners are installed.Thesources
of all makeup air and room ventilation air movement to all
dryers must be locatedawayfrom any dry cleaners. This is necessary so thatsolventvapors will not
be drawn intothe dryerinletducts. Drycleanersolventvapors will decompose
in contact with an
open flame such as the gas f lame present in clothes dryers. The decomposition productsare highly
corrosiveand will cause damage
to the dryerductsandclothes loads.
Electrical Requirements
Theelectrical requirements necessary to operatethe unitsatisfactorilyarelisted on theserial plate locatedon
the back panel ofeach dryer. Theelectrical connection should be made
to t lh e pigtail leads in theoutletbox on
the rear of the unit, using #1 0 AWG wire.
ONE 30Ampcircuit breakeris required foreachcomplete stackdryer. The wiring diagram is
located
on thebelt guard on the back of the dryer.
NOTE:
IT ISABSOLUTELY ESSENTIALTHAT THE DRYER BE GROUNDED BY A SEPARATE
GROUNDCONDUCTORFROMTHEGROUNDSCREWONTHEDRYERTOTHENEUTRALBAR INTH E
SUPPLY BREAKER BOX .
NOTE:WHEN INITIALLYCONNECTING POWER TO THE MACHINE IF UNUSUALBEHAVIOR
OF THE DISPLAYSOR CONTROLS OCCUR, GIVETHE MACHINE AN HOUR TO STABILIZE
AND CHECK OPERATIONAGAIN.
Gas Requirements
Thecomplete gas requirements necessary to operate thedryersatisfactorilyare listed on theserialplate
located
on the backpanel ofthe dryer. The inlet gasconnection to the unit is 1/2inch pipethread. However,
thesizeofthe piping
to supplythe dryershould be determined by reference to the Fuel Gas Codeandconsult-
ing the localgassupplier.
A
joint compound resistant to theaction of liquefied petroleum gases should be employed in makingpipe
connections. A 1/8inch NPTplugged tapping, accessible
for test gageconnection, must be installed immedi-
ately upstream of
the gassupply connection to the dryer.
A driptee isprovided in the unitgas piping
to catch dirtand otherforeign articles.
All pipeconnections should be checked for leakagewith soap solution or leakdetector. Nevercheckwith an
open flame.
CAUTION: The dryer and its individual shutoff valve must be disconnected from the gas
supply piping system during any pressure testing of that system at test pressures in excess
of 1/2 psig. The dryer must be isolated from the gas supply piping sys tem by closi ng its
individual manual s hutoff valve during any pressure testing of the gas supply piping system
at te st pressures equal to or less than 1/2 psig.
Burner Set-Up
All gas burner manifolds should be checked for propergas pressure while burning. Stack dryerburners should
be set at 3.5W.C. while burner operating.
Exhaust Installation
We recommend usingthe factory designed offset and collector system for exhausting the dryer. This two 6"
into one 8" collector is designed to minimize back pressure to the units. Exhausting of the dryershould
always be planned and constructed
so that minimum air restrictions occur. (Refer to Figure on dryerexhaust-
ing). Any restriction due to pipe size
or type of installation can cause slow drying time, excessive heat, and
lint build up in system and the room.
From an operational standpoint, incorrect
or inadequate exhaustingcancause cycling of the high limit
thermostat which shuts off the main burners and results in inefficient drying.

Individual exhausting of the dryer is recommended. All heat, moisture, and lint should be exhausted outside
by attaching a pipe of the proper diameter to the dryer adaptercollars and extending it out through an outside
wall. Thispipe must be very smooth on the inside, as rough surfaces tend tocollect lint which will eventually
clog
the ducts and prevent the dryer from exhausting properly. All elbows mustbe smooth on the inside. All
joints mustbe made so the exhaust end of one pipe is insidethe next one downstream. The addition of an
exhaustpipetends to reduce the amount of air the blower canexhaust. This doe s not affect the dryer operation
if heldwithin practical limits. For the most efficientoperation, it is recommendedthat no more than 14 feet of
straight 6" diameterpipewith two right angleelbows be used for each cylinder. When morethan two elbows are
used, twofeet of straightpipe shou ld be removed for eachadditional elbow. No morethantwo rightangle
,elbowsshould be used
to exhausteach cylinder.
If
the exhaustpipepassesthrough a wall, a metal sleeve of slightly larger diametershould be set in the wall
and the exhaustpipe passedthrough this sleeve. This practice is required by some local codes and is recom-
mended inall cases to protect
the wall.
This type of installation should have a means provided to preventrain and highwindsfromentering the exhaust
when the dryer is not in use. A hood with a hinged damper can be used for this purpose. Another method
would betopoint the outletend of the pipedownwardto prevent entrance of wind and rain. In eithercase, the
outletshould be kept clear by at least24" of any objectswhich would cause air restrictions.
Neverinstall a protectivescreen
over the exhaustoutlet.
When exhaustinga dryer straight up througha roof, the ove rall length of the duct has the same limits as ex-
haustingthrough a wall. A rain cap must be placed
on top of the exhaust and must be of such a type asto be
free from clogging. Th e typeusinga cone shaped"roof" over thepipe is suitable for thisapplication.
Exhausting the dryerintoa
chimney or under a building is not permitted. In eithercase there is a danger of
lintbuildup which can be highlycombustible.
Installation of severaldryerswhere a main dischargeductisnecessary, will need the following considerations for
installation. Wheth er using the 8" exhaustkit or individual6" ducts, entrance into the main discharge duct
should be at a 45 degree angle in the direction of dischargeairflow.
NOTE: Never install either the a· kit or individual 6" ducts at a right angle into the main discha r ge
duct. The follo wing illustration shows the various round main duct diametersto use with the
individual dryer ducts. The main duct can be rectangular or round, provided adequate air flow is
maintained. For each individual cylinder the total exhausting (main discharge duct plus duct outlet
from the dryer) should not exceed the equivalent of 14 teet and two elbows. The diameter of the
main discharge duct at the last dryer must be maintained to exhaust end.
NOTE: A small diameter duct will restrict air flow , a large diameterduct will reduce air velocity, both
contributing to lint build up,
An inspection door should be provided for periodic clean-out of the main
duct.
DIAMETER TO INCREA SE AS SHOWN
DRYER DUCTS
MU ST ENTER AT
A45 ° ANGLE
\
JNSTALLNO
f SCREEN OR
....__ .... / COVER
I\ \1
EXHAUST AIR
O UT
-Dryer Exhausting Using A Main Discharge Duct And a 6" X 6" X8" Wye On Each Dryer.
~---------------- -------- --------------------------------------~ 9

10
J
1 U11"(4.8)an)
Side
211916'(6 U2 em I
11 Y.r (.et%1an l
U U3l' ( 34.115 em I
Stack Dryer - Installation Dimensio ns
[- - - 3UT(&OIGI'I) - -j
ct leal Co nection
C7 ml'!17UIIanl
cu.- 1 11i1.27 1
4$1811'( 1116 cnf] UIJ II
0
7 811"1•17 an)
L
~ r I
Stack Dryer- Installation Dirrensions
1 Jl"'le em I Milt
Yr,. •cm)mn .

Factory installed offset
collector system
Dryer Vent Kit
Part# 9732-104-001
90" (228.6 em) offset
collector system as installed
11

12
DESCRIPTION OF CONTROL
The single electroniccontrol unitcontrolsallcoin counting, timing, temperaturecontrol and displaying of infor-
mation for bothtumblers.
Each digital
display shows vend price when itsparticulartumbleris waiting tor coins to be inserted. When a
tumbler is in use, the display shows the number of minutes remaining to be used on thattumbler.
The small green light to the left of the displaysflashes to indicatethat money has been added to the coin
acceptor.
The flashing stopswhen the customer credits the coinsto one tumbler or the other by touching a
start button
or temperature selection button for the appropriatetumbler. At thistime the purchased time is
reflected
by the digital display .
The threetemperature selection buttons for eachtumbleralso haveindicatorlights toindicatewhich selection of
temperature has been made. At the end of the cycle, the digital displayflashes until the operatoropens the
door to removehis load.
Temperature readout
tor each tumbler is available by pressingthe temperature thatisin usealongwith the start
button
for that tumbler.
OPERATING INSTRUCTIONS
1. Load clothes into the tumbler andclosethe door.
2. Deposit
the vend price that is shown in the display. Choose the desiredtemperature for the tumbler to
be used and then push the start button.
3. Additional time may be purchased and is added to the displayed time by touching the start button or
temperatureselection button.
Characteristicsof running dryer:
Temperatureselection may be changed at any time with the dryerrunning.
Running
time may be extended any timethat time isshowing on the display even if the added
amount is less than the original vend price.
PROGRAMMED DATA
Adjustableparameters are vend price, temperatures, and cool-down times. Hours run and moneycountinforma-
tion
can be displayed andthese registers are resettable tozero.
There are sixteen programmingsteps. These sixteen stepsare: (alltemperatures are degreesFahrenheit).
PROGRAMMING ORIGINAL
STEP DESCRIPTION RANGE INCREMENTS SETTINGS
00 Lower drum hour meter 0 to 9999 hr. 0
01 Upper drum hour meter 0 to 9999 hr. 0
02 Left coin audit
0 to $9999 0
03 Right coin audit oto $9999 0
04
Hottemp. setting 150-190 5
175
05
Medium temp. setting 120-170 5
150
06
Warm temp. setting 11 0-150 5
125
07 Left coin input 0-100 5 cents .
10
08 Right coin input 0-100 5 cents 25
09
Vend price 0-100 5 cents 25
10 Time leftcoin 0-99:55 minutes 5 sec. 3.20
11
Time right coin 0-99:55 minutes 5 sec. 10:00
12 Time for free vend 0-99:55 minutes 5 sec.
10:00
13 Cool down time Hot cycle 0-10:00minutes 5 sec. 2:00
14 Cool down time Medium
0-1 0:00 minutes 5 sec. 2:00
15 Cool down time Warm cycle 0-10:00minutes 5 sec. 2:00
16 TemperatureType display Centigrade or Fahrenheit Cor F F

Upper Gas Light
________ ..,......
- Varistor
Lower Door Light
-.........
_ Main Power Connection
Upper Door Light
• ·-
--
Lower Gas L~ht
Upper
Stack
Transformer
Motor
Rela
Dryer
·---
- Upper Motor Light
Control
Lower
Board
Motor
~·
•
--
Lower Motor Light
REMOVEABLEJUMPERS
o-
T eft'4le111ure Sensor Connectit
D_ _
Coin SW~ch Connection
Display Board to .
Output Board Connection
~-----
PrograniT est C)tle Butt or
13

14
DEXTER CONTROL FEATURES -Activation Procedures
Remove jumper to
activateAnti-Wrinkle
Remove jumper to
activate Last
Temperature Used
feature

Section 3
Wiring Schematics
Dryer Idle--NoCoins Added
Top Dryer Used For This Example
120VACis supplied to the Electronic Control (computerboard) by L1 on the blackwire. This tells us that any
timethereis power tothedryerthat the Computer Board will be powered andthe displaylighted. 120VAC also
goesto one side of the door switch on a blackwire. Closingthe loading door sends 120VACtothe Computer
Board on two bluewires. One blue wire makes120VAC available to one side of theMotorRun Relay. The other
bluewireprovides a 120VACsignal to the ComputerBoard telling it that the door isclosed. The door light on the
computerboardshould
be illuminatedwhenthe door isclosed.
Coins Added--Motor Starting and Running
Top Dryer Used For This Example
As each coin is addedthe Coin Switch closes and completesa circuit to theComputerBoard. The Computer
Boardcounts these signals and when the cor rect number of coins are countedtheComputerBoard closes the
Motor Run Relay. With this Relay closed, 120VACis supplied to the Motor on the red wire. The motorlighton
the computerboard should be illuminated anytime thecomputercalls for the motortooperate. The Motor Start
Switch is drawn inthe start position. In this positionthe incoming power is supplied directly to the main run
winding andthrough the Start
Capacitor to theAuxiliary Winding (start winding). As the Motorcomes up to
speed, the switch opens the circuit to the StartWinding and closes the circuit to the Gas Relay. This kicks the
Start Winding out of thecircuit and provides power tothe Gas Relay on the bluewire that connects to a bl ack
wire. The heatcircuitin the dryer can notoperate if the motor is not running. Thegas light on the computer
board should be illuminated
anytime the computercalls forthe heat.
Heat Circuit
T op Dryer Used For This Example
With the Drive Motorrunning, 120VACisprovided to the Gas Relay on thebluewirefromthemotor.This blue
wire has an in-lineconnectorand changesto a graywirebefore itarrives at the Gas Relay. The gas light on the
computerboard should be illuminatedanytime
the computercalls for the heat. The ComputerBoard closes the
Gas RelayContactproviding 120VAC on theorange/blackwire to the High LimitThermostat. The High Limit
Thermostat isnormallyclosed. (Itwi
II open,turning offthe heatcircuit, ifthedryercan't moveenough air from
problemssuch as an exhaust restriction) 120VACgoesthrough the normallyclosed High LimitThermostat to
the normallyopen Air Switch (Sail Switch) on the brown wire. This switch isclosed onlyifthedryeris running
and has thecorrect air flow. With the dryer running and theAirSwitch closed, 120VACissupplied to the Control
Transformer on thegray wirethatconnects tothe blackwire at thetransformer. This transformersteps 120VAC
down to24VAC.Thereis a 1.5 amp in-linefuse thatprotects the ControlTransformer. 24 volts issupplied to the
Spark Ignition Module(Ignition Controller) bytheControl Transformer on thered wire. TheSpark Ignition Module
willthen send high voltagetothe
Spark Electrodeviathe HighVoltage Lead(this lead looks like an automotive
spark plug wire). The Spark Ignition Modulealsosends 24VACtothe Gas Valve Coils whichopen the Gas
Valve. When ignitionoccurs the high voltagesparking stops. If ignition does notoccur, the Spark Ignition Module
will onlyspark
for 10seconds and then it locksout. To reset the Spark Ignition Modulethe dryerloading door
must beopened for 10 seconds.
17

18
Heat Sensor
This unit takes the place of the regulating thermostaton a mechanical timer dryer. The Hea t Sensoris ather-
mistor. The way these work is fairly simple. As the temperaturegoes up , the resistance in the thermistor(heat
sensor) goes down. As the temperature drops , the resistance in the thermistor(heat sensor) goes up.
Over Temperature Thermostat
(Manual Reset Safety Shutoff Thermostat )
Top Dryer Used For This Example
The neutral side of the schematic (L2) uses the white wire. On the neutral side prior to the HeatCircuitthere is
an Over TemperatureThermostat. This thermostatismanuallyreset by pushing in the red button.The Over
TemperatureThermostatis a safety backup for the entireHeatCircuit. If the dryer over heats the Over Tempera-
ture
Thermostat opens the neutral side of the line to allcomponentsexcept the ComputerBoardandmotor. This
turnsoff the heat but leaves the Computer Board lightedandthe drive motor poweredandturning the basket for
cool down.
Cool Down
Top Dryer Used For This Example
At the preprogrammed time (2 minutes factory setting--adjustable) the Computer Boardwill open the Gas Relay
Contact. This allows the Drive Motor to continueto run but without heat. The gas light on the computerboard
shou ld not be illuminated anytime the computer is incool down.This Cool Down period allows the clothing
(zippers, snaps, etc.) time to cool down to a temperature that is easily handl ed by customers.
End of Cycle
Top Dryer Used For This Examplle
At the end of the cooldown, the Computer Boardopens the Run Relay which removes power from the Drive
Motor on the red wire. The motor light on the computerboard should no longerbe illuminated. The Drive Motor
stops and the Computer Board display now flashesuntil the dryer door isopened. Once the door isopened to
remove the clothing the display goes back to 25 cents.

......
c.o
120V-60HZ
u . L2
(NEUTRAL)
GND
NOTES :
BLK l I WHT
_t
1. COIN SWITCH/ADD TIME SWITCH-N.O.,CLOSED WHP'l COIN INSERTED
2. DOOR SWITCHES-N.O.,CLOSED WHEN D. OOR IS CLOSED. .
WHT
WHT
0
w
a::
fil
0::
ELECTRONIC CONTROLLER
UPPER HEAT
SENSOR
UPPER
HI-LIMIT UPPER
RELAY I STAT AIR SW
3. MOTOR RUN RELAY CONTACT WILl. CLOSE WHEN THE COIN COUNT
IS SATISFIED.THE DOOR CLOSED AND THE START BUTTON PRESSED.
4. REFER TO OWNERS w.NUAL fOR DESCRIPTION Of OPERATION
AND REQUIREMENTS fOR HEATING CIRCUIT.
1.5A
FUSE
NOV 81999
"';\ • I""' IIBLK/ORGI ORG "(8' BRN ~CRY --·
I / '> 6 ~ M o • O • ~
~ L.lS:!! · I I
UPPER IGNITION
CONTROLLER
r----,
~. ·-- I 0 POWER
VALVE I
YEL
LO W ER
UPPER
I OVERT E MP STAT
I
I
I
cRY
I
WHT W HT
LO W ER HEAT
SENSOR
LOWER
I LOWER I HI-LIMIT LOWER
I GAS RELAY I STAT AIR sw
1.5A
FUSE
YEL
BL.K
U PP ER Fl.AME
SENSOR
UPPER SPARK
ELECTRODE
YEL
~'-.--- ICRY/WHTII BLK/WHTI ORG ~ BRN
0
GRY .eLK
~\ · • ocp ~
L---- _j LOWER ill~ YEL
OVERTEMP STAT I IHT~ ~ I ..
WHT WHT WHT
LOWER FUME
BLK SENSOR
9345-856-001 REV . A
SCHEMATIC
DL2X30
LOWER SPARK
ELECTRODE

1\.)
0
UPPER
AIR SW
GRY
UPPER
GAS VJJ..VE
I .-
UPPER
OVER-TEMP
~--~~--------~
STAT GND
BU<
BLK
GRY
~ ~+----,--~~~~--------------,
BLU SUCIORC
!uPPER I GNmoN ~~
I CONTROLLER I'
BLU
UPPER
DOOR SW
~
UPPER DRIVE
MOT OR
BLU
~!-,-() ~z.w I'
-c:::r--++----T---,r-0 SENSOR II
~
4
)RED
& WHT
LOWER
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Section 4
Service Procedures
CLOTHES DOOR REMOVAL
1. Theclothes door may be removed from the hinge bracket by unscrewing and removing the
allen-head pivot screw located at the doorupperhinge point.
2. Next lean the doorout of the top of the hinge bracket and lift the doorfrom the bottom hinge pin.
Notethe spacer between the bottom of the door and the hinge.
CLOTHES DOOR LATCH ADJUSTMENT
1. Loosen the lock nut on the latching stud. It is located directly behind the door handle.
2. Open the loading door.
3. Screwthe doorcatch stud in
or out as necessary and then retighten the lock nut.
DOOR SWITCH REMOVAL AND INSTALLATION
1. Each doorswitch is located directly behind the hinge plate of the loading door assembly.
Open the doorfor access to the switch area. Remove the two screws holding the switch
boxcover in position. This will allow the removal of the coverand the switch actuator
plate.
2. The entire switch box can now be pulled from the front panel opening, creating access to
the doorswitch mounting screws.
3. Remove these two mounting screws and twin nut which frees the door switch and
insulating shield. Remove wires.
4. When installing the doorswitch make certain the insulating shield is reassembled in the
correct position and the wires are on the two rearterminals.
5. The actuator plate and switch boxcovershould be assembled as illustrated in the parts
section of the book.
INSTALLATION OF CLOTHES DOOR WINDOW AND GASKET
1. Place the clothes door, with itsface down, on a solid surface.
No te: Prewa rmi ng the gasket makes the insta ll ation much easier.
2. Install the window gasketon the clothes doorflange.
The wider lip of the gasket should be on the
bottom side
or front face ofthe clothes doorand the ridges should be up.
3. Locate the seam at the latching stud.
4. Apply a soapy watersolution or rubber lubricant to the gasket.
5. Slide the glass into the middle ofthe door ring and gasket with half of the glass above the door
and half below.
6. While pressing down on the glass, stand the door up and use a modified screw driverwith the end
rounded off
to install half of the glass. Lay the door down and install the other half.
7. Atthe six o'clock position, pry the glass
up enough to install the blackspacer. (reuse from old
doorgasket)
HIGH LIMITTHERMOSTAT LOCATIONS AND FUNCTIONS
A. Burn er H ou s ing -This hi-limit is located on the backside of each burner housing.
1. The thermostat opensthe circuit
to the main burners in theevent of malfunction in the gas
control area or temperature control. This thermostat will open quickly ifthere is a
significant loss of airflow over the burner area.
2. It is covered
by a guard and is held in place by two screws. Thereare spacers between the
thermostat and bracket which must
be used to give properoperation.
B. Manual R
eset Over te mper a ture Safety Th e rmo s tats -The second hi-limitthermostat is located
on the right side of each burner housing as you view from the back ofthe machine. It is just above
the gasvalve and covered
by a guard with a small access hole.
1. The manually resettable thermostat limits the operating temperature a dryercan reach should
some abnormal situation occur.
2. Should one ofthe thermostats be tripped, that particular tumbler will cease to heat until the
thermostat
is reset. Once the dryercools, the thermostat may be reset by inserting a pencil or
stick through the opening in the thermostat cover. 21

22
PRESSURE REGULATOR ADJUSTMENT
Use the following procedure whenever it is necessary to check the pressure regulat or setting.
NOTE: Any adjustment of the pressure regulator must be made with a manometer attached
at the plug in the main burner manifold.
1. Shut off the gas supply to t he drye r.
2. Remove the 1/8" pipeplug from the end of the main burner manifold.
3. Attacha
manom eter toth e manifold end.
4. Remove
the pressure regulator cover screw on the gasvalve.
5. Openthe shutoffvalve,
and operate the dryer .
6. Adjustthepressure
for a manometer reading of 3.5" water col umn gas pressure. (11.0" for L.P.)
NOTE: The main burners must be operating when adjusting the pressure regula tor .
7. Shut off the gas supply to the drye r. Remove the ma n omete r and install the 1/8"pipe plug in the
manifold.
8.
Open the shut off valve , start the dryer and chec k for gas leakswhile the burners are ignited.
COIN ACCEPTOR REMOVAL
Loosen the four screws(Torx #1 0 driver) mounting the coinacceptor to its retainingbracket.
Do not remove the screws or the retainer will fall behind the panel.
Shift the acceptor up and down to allow the retainer to slidethrough the panelopening. When removing, the
bottom shou ld be broughtthrough the panel openi ng first. When reinstalling, thetop should go infirst.
COIN SWITCH ADJUSTMENT
The coin switchshould click soon after the coin hits the operatorwire. H owever there must be enough travel to
allow the switch to reset once the coin has passed. Adjustmentshould be made by bending the wire very close
to its attachment point.
ELECTRONIC CONTROL FAILURE CODES
The electroniccontrol may show the foll owing errorcodes in the disp lay:
1.
F1 --Sho rted sensor or shorted sensor wireharness.
2.
F2 --0pen sensor or sensor wi re harnessunplugged.
3.
F1 or F2 in both displays at the same time usua ll y would mean that the control itselfis defective
as it would be unlikely that both sensors woul d develop a problem at the same time.
4.
F3 --EiectronicControl Failure.
ELECTRONIC CONTROL DIAGNOSTIC LIGHTS
The electroniccontrol has 6 diagnostic lights to aid in service of the dryer. Each pockethas indicatorlights for
the motor circuit, door switch circuit, and the heatcircuit. W hen the electronic control is carefully unlocked and
moved forward these lights are visible on the circuitboard. They are each labeled as to function indicated.
1. When either
dryer door isclosed, the appropriate door lighton the computer should be
illuminated indicating that the door is closed.
2. Wh
en either dryer is running, the appropriate motor light on the computer should be illuminated
indicating
that the computer is calling for the motor to operate.
3.
When either dryer is calling for heat, the appropriate heat light on the computershould be
illuminated indicating that the computer iscalling for heat.
An example of theirfunction would be troubleshooting an u pper dryer pocket that did not heat.
1.
Start the machine and insure that it did not heat.
2.
Check the upper heat light and see if it is lit.
3.
If the heat light is on, this would indicate that t he computer was calling for heat and that it was
not at fault. You would then go on to check the rest of the heat circuit.