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
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7 811"1•17 an)
L
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Stack Dryer- Installation Dirrensions
1 Jl"'le em I Milt
Yr,. •cm)mn .