Dexter Laundry DCT30KC Series User manual

8514-003-010B
10/09
The dryer must not be stored or installed where it will be exposed to water and/or weather.
OPERATOR’S MANUAL
for
DCT30KC/DLC30 Series Dryers
WARNING: For your safety the infor-
mation in this manual must be fol-
lowed to minimize the risk of fire or
explosionortopreventpropertydam-
age, personal injury or loss of life.
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
– WHAT TO DO IF YOU SMELL GAS
•Do not try to light any appliance.
•Do not touch any electrical switch; do
not use any phone in your building.
•Clear the room, building or area of all
occupants.
•Immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions.
•If you cannot reach your gas supplier,
call the fire department.
– Installation and service must be performed by
a qualified installer, service agency or the
gas supplier.
You, the purchaser, must post in a prominent loca-
tion instructions to be followed in the event the user
smells gas. Consult your local gas supplier for
procedure to be followed if the odor of gas is
present.
Post the following “For Your Safety” caution in a
prominent location:
FOR YOUR SAFETY
Do not store or use gasoline or other flammable
vapors or liquids in the vicinity of this or any other
appliance.
It is important that you read this Manual and retain it for
future reference. For service or replacement parts,
contact the distributor in your area or the manufacturer.
AVERTISSEMENT. Assurez-vouz de
bien suivre les instructions données
dans cette notice pour réduire au
minimum le risque d'incendie ou
d'explosion ou pour éviter tout
dommage matérial, toute blessure
ou la mort.
Ne pas entreposer ni utiliser d'essence ni d'autres
vapeurs ou liquides inflammables dans le voisinage
de cet appareil ou de tout autre appareil.
– QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE
GAZ:
•Ne pas tenter d'allumer d'appareil.
•Ne touchez à aucun interrupteur. Ne pas
vous servir des téléphones se trouvant
dans le bâtiment où vous vous trouvez.
•Évacuez la pièce, le bâtiment ou la zone.
•Appelez immédiatement votre
fournisseour de gaz depuis un voisin.
Suivez les instructions du fournisseur.
•Si vous ne pouvez rejoindre le fournisseur
de gaz, appelez le service des incendies.
– L'installation et l'entretien doivent être assurés par
un installateur ou un service d'entretien qualifié ou
par le fournisseur de gaz.
POUR VOTRE SÉCURITÉ
Ne pas enteposer ni utiliser d'essence ni d'autres
vapeursouliquidesinflammables dansle voisinage
de cet appareil ou de tout autre appareil.
Dexter Laundry, Inc.
2211 W. Grimes
Fairfield, Iowa 52556 USA

2
TABLE OF CONTENTS
PAGE NO.
DRYER DIMENSIONS (Figure 1) .........................................................................3
UNCRATING .........................................................................................................4
FIELD ASSEMBLY ...............................................................................................4
DRYER INSTALLATION .......................................................................................5
DRYER EXHAUST SYSTEM (Figure 2) ...........................................................6, 7
DRYER SHUTDOWN ...........................................................................................8
OPERATING INSTRUCTIONS.............................................................................8
SERVICING DRYER...........................................................................................15
PREVENTATIVE MAINTENANCE .....................................................................15
WARNINGS ABOUT USE AND OPERATION
It is ABSOLUTELY ESSENTIAL that the dryer be grounded to a known earth (zero) ground. This is not only for
personal safety, but is necessary for proper operation.
KEEP SHIELDS, GUARDS AND COVERS IN PLACE. These safety devices are provided to protect everyone
from injury.
A DRYER SHOULD BE CONNECTED TO POWER FOR THREE (3) MINUTES before it is operated or before a
program change is made. Operation or program changes,which occur during this "power up" period,are subject to
loss in case of power interruption. After the initial three minutes, all programmed data is protected from power
interruptions of any length and the customer's individual cycle is protected up to 3 seconds. This is done without
batteries.
LEAVE THE ELECTRICAL POWER TO THE DRYER ON AT ALL TIMES except when necessary for service
or other similar activities. The hour meter function adds only full hours to its reading. If the power is shut off every
night, any fraction of an hour of time that is on the machine at that time will be lost. Turning the power off every night
could also have some effect on the long-term life of the memory after a number of years. Turning power off
occasionally won't affect the unit.
From a safety aspect shutting off the gas supply at night would be better than shutting off the electrical power.
THIS DRYER IS EQUIPPED WITH AN OVER-TEMPERATURE THERMOSTAT located on the lower side of the
return air boot beside the burner housing. Should the dryer cease to operate, refer to your “Service Procedure and
Parts Data” book for instructions.
CHECK THIS THERMOSTAT WHEN INSTALLING DRYER to assure it is not tripped. Impacts such as rough
handling in shipment, may trip the thermostat.

3

4
INSTALLATION AND OPERATING INSTRUCTIONS
COMMERCIAL DRYER
UNCRATING
1. Remove cardboard container and innerpack.
2. Complete the uncrating as described in the procedure listed on the instruction sheet taped to the loading door
glass.
FIELD ASSEMBLY
For secure packaging, the dryer is shipped with the tee, one part of the heat reclaimer, inside the lower service
door.
To install:
STEP 1.
Remove 4 metal screws from the bag in coin box. Go to the rear of the dryer and remove the tape holding the top
of the vertical 8" pipe.
STEP 2.
Install the tee into both the vertical pipe and the horizontal boot. Using the four pilot holes provided, drill 4 matching
9/64 inch (3.6) diameter mounting holes; 2 holes through the boot into the tee outlet, and 2 holes through the tee inlet
into the 8 inch vertical pipe. Install the 4 screws provided to secure the tee to the pipe and boot.
STEP 3.
Install your exhaust system to the tee. Tape all joints with 2" duct tape.
ALTERNATE INSTALLATION
If it is desired to have the dryer exhaust at a low level, the installation can be altered as shown in the following
illustration.
The installer should acquire a 6" dia. 90°elbow and 6" dia. straight pipe for the two areas shown in the alternate
installation.
The exhaust tee may be cut off on the long end to give an over all length of 14" (356). This allows you to come
vertically to the 6" elbow above. (The necessary pipe for the standard installation is included as shown.)
ALTERNATE INSTALLATION
STANDARD INSTALLATION
TO BUILDING
EXHAUST
6" ELBOW
6" PIPE
TO BUILDING
EXHAUST

5
DRYER INSTALLATION
1. CODE CONFORMITY. All commercial dryer installations must conform with local codes or, in the absence of
local codes, with the latest edition of the National Fuel Gas Code ANSI Z223. 1. Canadian installations must comply
with current Standard CAN/CGA-B149 (.1 or .2) Installation Code for Gas Burning Appliances or Equipment, and local
codes if applicable. The appliance, when installed, must be electrically grounded in accordance with the latest edition
of the National Electric Code, ANSI/NFPA70, or, when installed in Canada, with Standard CSA C22.1 Canadian
Electrical Code Part 1.
2. INSTALLATION CLEARANCES: This unit may be installed at the following alcove clearance. (millimeters)
I. Left Side 0"
II. Right Side 1"* (25)
III. Back 18" (457) (Certified for 1" (25) clearance; however, 18" (457) clearance is necessary behind the
belt guard to allow servicing and maintenance.)
IV. Front 48" (1220) (to allow use of dryer)
V. Top Refer to figure labeled “Vertical Clearance Dimensions”.
AB. Certification allows 0" clearance at the top 1" (25) back from the front. However, a 1/4" (6)
clearance is required to allow opening the upper service door.
CD. A 4" (102) clearance is required at the top between 1" (25) and 4" (102) from front.
E. A 10" (254) clearance is required from top at all other points.
VI. Floor This unit may be installed upon a combustible floor.
*Units may be installed in direct contact with an adjacent dryer, providing allowance is made for opening upper and
lower service doors.
Do not obstruct the flow of combustion and ventilation air.
Maintain minimum of 1" (25) clearance between duct and combustible material.
Refer to installation label attached to the inside surface of the upper door of the dryer for other installation
information.

6
3. MAKE-UP AIR. Adequate make-up air (830 CFM) must be supplied to replace air exhausted by dryers on all
types of installations. Provide a minimum of one square foot make-up air opening to the outside for each dryer. This
is a net requirement of effective area. Screens, grills or louvers,which will restrict the flow of air,must be considered.
Consult the supplier to determine the free area equivalent for the grill being used.
The source of make-up air should be located sufficiently away from the dryers to allow an even airflow to the air
intakes of all dryers. Multiple openings should be provided.
NOTE: The following considerations must be observed for gas dryer installations where dry cleaners are
installed. The sources of all make-up air and room ventilation air movement to all dryers must be located
away from any dry cleaners. This is necessary so that solvent vapors will not be drawn into the dryer inlet
ducts. Dry cleaner solvent vapors will decompose in contact with an open flame such as the gas flame
present in clothes dryers. The decomposition products are highly corrosive and will cause damage to the
dryer(s), ducts and clothes loads.
4. ELECTRICAL REQUIREMENTS. The electrical power requirements necessary to operate the unit satisfacto-
rily are listed on the serial plate located on the back panel of each dryer. The electrical connection should be made
to the pig tail leads in the outlet box (or terminal board, if supplied) on the rear of the unit, using a wire size adequate
to handle the amperage and voltage listed on the serial plate, but never smaller than No.12 AWG wire. It is absolutely
necessary that the dryer be grounded to a known ground.
Individual circuit breakers for each unit are recommended. The wiring diagram is located on the belt guard on the
back of the machine.
5. GAS REQUIREMENTS. The complete gas requirements necessary to operate the dryer satisfactorily are listed
on the serial plate located on the back panel of the dryer.
The inlet gas connection to the unit is 1/2-inch pipe thread.
A joint compound resistant to the action of liquefied petroleum gases should be employed in making pipe
connections.
A 1/8-inch NPT plugged tapping, accessible for test gage connection, must be installed immediately upstream of
the gas supply connection to the dryer.
A drip tee should be provided in the gas piping entering the unit to catch dirt and other foreign articles.
All pipe connections should be checked for leakage with soap solution. Never check with an open flame.
For altitudes above 2,000 feet (610m) it is necessary to derate the BTU input. Contact your local distributor for
instructions.
L.P. gas conversion kits are available for this dryer. Contact your local distributor.
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 system by closing its individual manual shutoff valve during any pressure testing of the gas
supply piping system at test pressures equal to or less than 1/2 psig.
6. EXHAUST INSTALLATION. (Refer to Figure 2 at the end of section 6.) Exhausting of the dryer(s) should be
planned and constructed so that no air restrictions occur. Any restriction due to pipe size or type of installation can
cause slow drying time, excessive heat, and lint in the room.
From an operational standpoint, incorrect or inadequate exhausting can cause a cycling of the high limit thermostat,
which shuts off the main burners and results in inefficient drying.
Individual exhausting of the dryers is recommended. All heat, moisture, and lint should be exhausted outside by
attaching a pipe of the proper diameter to the dryer adapter collar and extending it out through an outside wall. This
pipe must be very smooth on the inside, as rough surfaces tend to collect lint,which will eventually clog the duct and
prevent the dryer from exhausting properly. All elbows must be smooth on the inside. All joints must be made so the
exhaust end of one pipe is inside the next one downstream. The addition of an exhaust pipe tends to reduce the

7
amount of air the blower can exhaust. This does not affect the dryer operation if held within practical limits. For the
most efficient operation, it is recommended that no more than 20 feet (6m) of straight 8" diameter pipe be used with
two right angle elbows. When more than two elbows are used, two feet of straight pipe should be removed for each
additional elbow. No more than four right angle elbows should be used to exhaust a dryer.
Maintain a minimum of 1" (25) clearance between duct and combustible material.
If the exhaust pipe passes through a wall, a metal sleeve of slightly larger diameter should be set in the wall and
the exhaust pipe passed through this sleeve. This practice is required by some local codes and is recommended in
all cases to protect the wall. This type of installation should have a means provided to prevent rain and high winds
from entering the exhaust when the dryer is not in use. A hood with a hinged damper can be used for this purpose.
Another method would be to point the outlet end of the pipe downward to prevent entrance of wind and rain. In either
case, the outlet should be kept clear, by at least 24" (610), of any objects,which would cause an air restriction.
Never install a protective screen over the exhaust outlet.
When exhausting a dryer straight up through a roof, the overall length of the duct has the same limits as exhausting
through a wall. A rain cap must be placed on top of the exhaust and must be of such a type as to be free from clogging.
The type using a cone shaped “roof” over the pipe is suitable for this application.
Exhausting the dryer into a chimney or under a building is not permitted. In either case,there is a danger of lint
build-up,which can be highly combustible.
Installation of several dryers where a main discharge duct is necessary, will need the following considerations for
installation (see Fig. 2). Individual 8" ducts from the dryers into the main discharge duct should be at a 45-degree angle
in the direction of discharge airflow.
NOTE: Never install the individual 8" ducts at a right angle into the main discharge duct. The individual ducts
from the dryers can enter at the sides or bottom of the main discharge duct. Figure 2 indicates the various
round main duct diameter to use with the individual dryer ducts. The main duct can be rectangular or round,
provided adequate airflow is maintained. For each individual dryer, the total exhausting (main discharge duct
plus duct outlet from the dryer) should not exceed the equivalent of 20 feet (6m) 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 airflow; a large diameter duct will reduce air velocity -- both
contributing to lint buildup. An inspection door should be provided for periodic clean out of the main duct.
DRYER DUCTS
MUST ENTER AT
A 45°ANGLE
INSTALL NO
SCREEN OR
COVER

8
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VEND PRICE MINUTES : SECONDS
PURCHASED
START
7. DRYER IGNITION (SOLID STATE IGNITION). The solid-state ignition system lights the main burner gas by
spark. The gas is ignited and burns only when the gas-valve relay (in the electronic controller) calls for heat. The
procedure for first-time starting of a dryer is as follows:
A. First, review and comply with the “Warnings About Use and Operation” found on the inside front cover of this
manual. Be sure the electrical power supply is connected correctly. The white wire is to be connected to the white
wire (common) in the junction box and the black wire to the black wire (power leg). The dryer MUST be properly
grounded.
B. Make sure all gas supply lines are purged of air. Close the main gas shut-off valve and wait for five minutes
before turning the valve back on.
C. Turn on the main electrical power switch. The dryer may be started by following the “Operating Instructions”
found later in this manual.
D. Natural gas and liquefied petroleum gas fired dryers both operate in the same manner. When the gas-valve
relay contacts are closed (indicating a demand for heat), the solid-state ignition control will automatically supply
energy to the redundant gas valve. Spark will continue until a flame is detected by the sensing probe, but not longer
than 10 seconds. If the gas fails to ignite within 10 seconds, the gas valve closes and the system will “lock out”. No
further attempts at ignition will be performed automatically. It is then necessary to interrupt electrical power to the
ignition system before making another attempt at igniting the burners. This can be done by opening the dryer door
and allowing the dryer to come to a stop for 15 seconds, then closing the door and pushing the “Start” button. The
dryer will then repeat the ignition trial cycle.
8. MAIN BURNER ADJUSTMENT. The primary air shutter of each main burner must be properly adjusted for the
correct air-gas ratio. Loosen the shutter locking screws. Adjust the shutter by closing it sufficiently to give a blue
flame with a yellow tip. Next open the shutter until the yellow tips are at a minimum. After adjustment, securely lock
each shutter in position by tightening the shutter locking screws.
DRYER SHUTDOWN
To render the dryer inoperative, turn off the main gas shut-off valve and disconnect electrical power to the dryer.
OPERATING INSTRUCTIONS
1.
2. Select drying cycle. Other cycle selec-
tions may be made now or later by press-
ing the appropriate key (button).
3. Close the loading door. Press and
the dryer will start. “Seconds” goes to .
“Minutes” is rounded up and will count
down each minute. The colon flashes on
and off indicating the timer is counting
down.
4. Clothes should be removed promptly after
the cycle is completed to prevent exces-
sive wrinkling.
START
Deposit coins, tokens ordebit card to satisfy
vendpricedisplayofidledryer. Eachdeposit
decreases vend price until display changes
toshowtimepurchased. WARMor LOW
light illuminates.

9
START
DESCRIPTION OF CONTROLS
Credit for coins deposited, dryer time and temperature are controlled by an electronic controller.
The large digital display shows vend price of an idle dryer, time purchased after coins are deposited, temperature
and program information.
The three red indicator lights show the drying temperature selected. This selection may be made anytime.
The drying temperature will be displayed when the start switch and the switch for the selected temperature are
pressed at the same time.
All programmed data is protected from power interruption of any length and the customer’s individual cycle is
protected for up to 3 seconds. This is done without batteries.
The 3 temperature buttons and the start button become programming switches when the controller is in the
program mode as described on page 10.
PROGRAMMING:
All operating parameters (vend price, temperatures, cool-down times, etc.) are adjustable. In addition, several
displays of information are available from the controller (Money audits, hours run, dryer temperature).
The dryer is ready to run, from the factory, with the following pre-programmed data:
Temperature, HOT or HIGH:175°F / 78°C
Temperature, MEDIUM: 150°F / 63°C
Temperature, WARM or LOW: 125°F / 48°C
Vend Price: 25¢
Time for Left Coin: 3:20 (doesn't apply to single coin models)
Time for Right Coin: 8:00 (8minutes for 25¢)
Time of Free Vend: 8:00 (“Free Dry” cycle is 8minutes)
Cool-down Time, HOT or HIGH: 2:00 (Cool-down time in HOT or HIGH is 2 minutes)
Cool-down Time, MEDIUM: 2:00 (Same as above, except MEDIUM)
Cool-down Time, WARM or LOW:2:00 (Same as above, except WARM or LOW)
Temperature Scale F degrees
All of the above data can be easily changed by the owner. The changes are made by the 4 keys or buttons on the
front of the control panel.
Once started, the “timer” cannot be stopped. However, extra coins will be acknowledged by adding time to the
display. The dryer may be stopped by opening the loading door,which interrupts the drive motor and gas burners.
Close the loading door and push to restart the dryer.
Cool-down time (owner programmable) is always part of the cycle time and is purchased by the customer. For
example, if cool-down time is 2 minutes, the last 2 minutes of the cycle will have no heat.
Decimal Point Display ON
OFFSeconds on Display
EASY CARD MODELS
Some Dexter dryers are factory equipped with a card reader that is used with Dexter’s Easy Card debit card system.
The card reader signals the dryer control when money is debited from the user’s card account to satisfy the price of
the dry time. The dryer’s pricing and the Easy Card system pricing are completely independent of each other and
must be programmed separately and coordinated. Refer to the instructions that came with the Easy Card system
for complete information.

10
PROGRAMMING INSTRUCTIONS:
(To switch to program mode.)
1. Unlock and open the upper service door.
2. Open the loading door.
3. Push the Program Button found just to the left of the
WARM or LOW cycle light. The Button is accessible
through a hole in control mounting plate, after removal
of bright metal plug.
4. The control switches to PROGRAM mode. In PRO-
GRAM mode, the membrane switch keypad becomes
a 4-switch programming tool.
5. The ACTUAL NUMERICAL VALUES desired are keyed
in as explained on P.11.
HOT OR HIGH
PERM
PRESS
WARM OR LOW
START
PROGRAM
BUTTON
LOADING
DOOR
SERVICE
DOOR
IMPORTANT: Please remember to push to actually enter (store in memory) new data. If you merely change the
display, memory hasn’t yet been changed -- only will actually change the memory!
START
START
START
DISPLAY
ANNUNCIATOR LIGHTS WHICH HELP
IDENTIFY PROGRAMMING STEPS
START: Stores the displayed value in memory,
and advances the controller to the
next programming step.
INCREASES
DISPLAYED VALUES
ZEROS HOUR METER ON STEP 1
ZEROS COIN COUNT ON STEP 2
RESTORES ORIGINAL VALUE ON STEPS 3-14
DECREASES
DISPLAYED VALUES
TYPE 2 PROGRAMMING
MED.