Dexter Laundry T-30 User manual

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8514-311-001 REV PR
Original Instructions
Please read this information and retain for reference.
Dexter Laundry, Inc.
2211 West Grimes Avenue
Fairfield, Iowa 52556 - USA
OPERATOR’S MANUAL
INSTALLATION & OPERATION INSTRUCTIONS
FOR INDUSTRIAL SINGLE POCKET GAS DRYERS

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8514-311-001 REV PR
1Safety Information
WARNING
FAILURE TO FOLLOW SAFETY WARNINGS
EXACTLY COULD RESULT IN SERIOUS
INJURY, DEATH OR PROPERTY DAMAGE.
WARNING
THE DRYER MUST BE DISCONNECTED
FROM THE GAS SUPPLY PIPING SYSTEM
DURING ANY PRESSURE TESTING OF
THAT SYSTEM. DO NOT EXPOSE THE
DRYER’S GAS CONTROL VALVE TO
TESTING PRESSURE.
WARNING
Do not stop dryer before end of
cycle time unless all items are
quickly removed and spread out
to dissipate heat.
WARNING
It is ABSOLUTELY ESSENTIAL that the
dryer be grounded to a known earth
(zero) ground in accordance with local
codes or, in the absence of local codes,
with the latest editions of the National
Codes. This is not only for personal safety
but is necessary for proper operation of
the controller. Failure to do so will void
the warranty of the controller.
Post the following “For Your Safety”
caution in a prominent location:
WARNING
FOR YOUR SAFETY
THIS MACHINE IS FOR DRYING ONL
Y
FABRICS CLEANED IN WATER
To avoid possibility of fire, including
spontaneous combustion, do not dry oiled
floor mops, items containing foam rubber or
similarly textured rubberlike materials or any
material on which you have used a cleaning
solvent, or which contains flammable liquids
or solids (such as petrol, kerosene, waxes,
etc.)
Fabric softeners, or similar products,
should be used per the fabric softener
instructions. Remove all objects from pockets
such as lighters and matches.
Post the following “For Your Safety”
caution in a prominent location:
WARNING
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR
OTHER FLAMMABLE VAPORS OR LIQUIDS
IN THE VICINITY OF THIS OR ANY OTHER
APPLIANCE.
WARNING
INSTALLATION AND SERVICING
INSTRUCTIONS ARE FOR USE BY
QUALIFIED PERSONNEL ONLY. TO AVOID
INJURY AND ELECTRICAL SHOCK DO
NOT PERFORM ANY SERVICING OTHER
THAN THAT CONTAINED IN THE
OPERATING INSTRUCTIONS, UNLESS
QUALIFIED.

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8514-311-001 REV PR
WARNING
DO NOT SPRAY AEROSOLS IN THE
VICINITY OF THIS APPLIANCE while in
operation.
WARNING
DO NOT USE THIS EQUIPMENT FOR ANY
PURPOSE NOT DESCRIBED IN THIS
MANUAL.
WARNING
THE DRYER IS NOT TO BE USED IF
INDUSTRIAL CHEMICALS HAVE BEEN
USED FOR CLEANING.
WARNING
DO NOT PLACE ARTICLES ON OR
AGAINST THIS APPLIANCE.
WARNING
THIS APPLIANCE SHALL NOT BE USED
TO DRY OFF SOLVENTS OR DRY-
CLEANING FLUIDS.
WARNING
DO NOT DRY UNWASHED ITEMS IN THE
DRYER.
WARNING
ADEQUATE VENTILATION SHALL BE
PROVIDED TO AVOID THE BACK FLOW
OF GASES INTO THE ROOM FROM ANY
FUEL BURNING APPLIANCES, INCLUDING
OPEN FIRES.
WARNING
Servicing must be performed by authorized
personnel. Serious injury or death can result
from not heeding this instruction.
WARNING
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify
proper operation after servicing.
WARNING
A CLOTHES DRYER PRODUCES COMBUSTIBLE
LINT AND MUST BE EXHAUSTED OUTDOORS.
THE AREA AROUND THE CLOTHES DRYER
SHOULD BE KEPT FREE OF LINT.

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8514-311-001 REV PR
WARNING
DO NOT MODIFY THIS
APPLIANCE. KEEP
SHIELDS, GUARDS, AND
COVERS IN PLACE. THESE
SAFETY DEVICES ARE
PROVIDED TO PROTECT
EVERYONE FROM INJURY.
WARNING
Replace all panels that were
removed to perform monthly,
quarterly, semi-annually, and
annually steps.
WARNING
DO NOT PLAY IN OR
AROUND THIS EQUIPMENT.
DEATH OR SERIOUS INJURY
CAN RESULT FROM THIS!
WARNING
DO NOT STEP, STAND, OR
SIT ON THE DRYER OR
INTERNAL COMPONENTS. IT
IS NOT DESIGNED TO
SUPPORT YOUR WEIGHT.
WARNING
FIRE AND EXPLOSION
HAZARD!
– 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.
WARNING
EXPLOSION HAZARD! DO
NOT DRY LOADS WHICH
MAY CREATE AN
EXPLOSIVE ATMOSPHERE
IN THE DRYER.

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8514-311-001 REV PR
WARNING
FIRE HAZARD! OIL-
AFFECTED ITEMS CAN
IGNITE SPONTANEOUSLY,
ESPECIALLY WHEN
EXPOSED TO HEAT
SOURCES SUCH AS IN A
DRYER. THE ITEMS
BECOME WARM, CAUSING
AN OXIDATION REACTION
IN THE OIL. OXIDATION
CREATES HEAT. IF THE
HEAT CANNOT ESCAPE,
THE ITEMS CAN BECOME
HOT ENOUGH TO CATCH
FIRE. PILING, STACKING
OR STORING OIL-
AFFECTED ITEMS CAN
PREVENT HEAT FROM
ESCAPING AND SO
CREATE A FIRE HAZARD.
WARNING
DO NOT OPERATE IF
DOOR GLASS IS DAMAGED
IN ANY WAY.
WARNING
DO NOT OPERATE IN ANY
HAZARDOUS CLASSIFIED
(ATEX) ENVIRONMENT.
WARNING
FIRE HAZARD! IF IT IS
UNAVOIDABLE THAT
FABRICS THAT CONTAIN
VEGETABLE OR COOKING OIL
OR HAVE BEEN
CONTAMINATED BY HAIR
CARE PRODUCTS BE PLACED
IN A TUMBLE DRYER, THEY
SHOULD FIRST BE WASHED
IN HOT WATER WITH EXTRA
DETERGENT - THIS WILL
REDUCE, BUT NOT
ELIMINATE, THE HAZARD.
WARNING
FIRE HAZARD! TO AVOID
POTENTIAL RISKS OF
SPONTANEOUS
COMBUSTION OF A LOAD,
REMOVE THE LOAD
QUICKLY AFTER THE
COMPLETION OF THE
CYCLE OR IN CASE OF
FAILURE OF POWER
SUPPLY.
WARNING
BURN HAZARD! DO NOT
TOUCH DOOR GLASS
ALLOW GLASS TO COOL
BEFORE SERVICING.

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8514-311-001 REV PR
WARNING
CUT HAZARD! THERE ARE
SHARP EDGES ON VARIOUS
SHEET METAL PARTS
INTERNAL TO THE
ENCLOSURE. USE SAFETY
CONSCIOUSNESS WHEN
PLACING OR MOVING YOUR
HANDS WHILE WORKING IN
THE INTERIOR OF THIS
EQUIPMENT.
WARNING
SHOCK HAZARD! THERE IS
HIGH VOLTAGE AND
MOVING PARTS BEHIND
THE GUARDS. USE THE
SUPPLY DISCONNECTING
DEVICE FOR EACH SUPPLY
TO THE DRYER TO LOCK
OUT AND TAG OUT THE
UNIT BEFORE SERVICING.
FAILURE TO DO SO CAN
CAUSE SERIOUS INJURY
OR EVEN DEATH.
WARNING
REPLACE FUSES WITH
SAME TYPE AND RATING
INFORMATION
The A-weighted emission sound pressure level
does not exceed 70dB(A). The operator does
not need hearing protection.
INFORMATION
The dryer will operate correctly in ambient
temperatures of +5°C to +40°C, in relative
humidity up to 50% at +40°C and above 50%
when below +40°C, and at altitudes up to
1000m above sea level, must be transported
and stored from -25°C to +55°C and up to
+70°C for short periods of time, and has been
packaged to prevent damage from humidity,
vibration, and shock. Take measures to avoid
harmful effects of occasional condensation.
INFORMATION
It is important that the earthing screw next to
the power terminal block TB-1 be connected to
a good external earth.
INFORMATION
The dryer does not emit hazardous radiation.
INFORMATION
The installer must test the dryer for
operation and instruct the user before
leaving the installation.

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8514-311-001 REV PR
INFORMATION
A small diameter duct will restrict airflow;
a large diameter duct will reduce air
velocity - both contributing to lint build
up. An inspection door should be
provided for periodic clean out of the
main duct.
INFORMATION
STATIC BACK PRESSURE should be a
maximum of 7.6 mm w.c. (0.3-inch w.c.)
at the rear exhaust outlet of the dryer. If
multiple dryers are connected to the
common duct, ensure the back draft
damper is installed properly.
INFORMATION
THIS DRYER IS EQUIPPED WITH AN
OVER-TEMPERATURE THERMOSTAT
located to the right of the motor on the
rear of the cabinet. If the dryer ceases to
operate, refer to your “Service Procedure
and Parts Data” book for instructions.
INFORMATION
An individual gas shutoff valve is required
for each dryer and must comply with EN
331
INFORMATION
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.
INFORMATION
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.

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8514-311-001 REV PR
INFORMATION
CHECK HI-LIMIT THERMOSTAT WHEN
INSTALLING DRYER to assure it is not
tripped. Impacts such as rough handling
in shipment, may trip the thermostat. It
may be reset by inserting a wooden
pencil or dowel through the bushing in
the cover.
INFORMATION
Items that have been soiled with
substances such as cooking oil, acetone,
alcohol, petrol, kerosene, spot removers,
turpentine, waxes and wax removers
should be washed in hot water with an
extra amount of detergent before being
dried in the tumble dryer.
INFORMATION
You, the purchaser, must post, in a prominent
location, 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.
INFORMATION
This appliance can be used by children aged
from 8 years and above and persons with
reduced physical, sensory or mental
capabilities or lack of experience and
knowledge if they have been given
supervision or instruction concerning use of
the appliance in a safe way and understand
the hazards involved.
INFORMATION
Product designed to be used by untrained
personnel.
INFORMATION
All dryers must be installed in accordance
with all local, state and national building,
electrical, and other codes in effect in the
area. Electrical safety of these dryers has
been evaluated to the requirements of
European standard EN 60204-1.
INFORMATION
Leave all panels in place while performing
daily maintenance.
INFORMATION
All daily maintenance performed on
Dexter units must be done by trained and
qualified personnel.
INFORMATION
All monthly, quarterly, semi-annually, and
annually maintenance steps performed
on Dexter units must be done by trained,
technically sound and qualified personnel.

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INFORMATION
SCCR for all dryers is 10kA.
INFORMATION
Lock-out and tag-out the
power supply before
servicing.
INFORMATION
Apply proper lock out tag out
procedures before performing
monthly, quarterly, semi-
annually, and annually steps.
INFORMATION
Sheet metal parts, such as
guards and covers, can cause
cuts and lacerations when
handling. Cut gloves or
similarly rated PPE should be
used when handling these
parts.
INFORMATION
Wear hand protection when
handling and caring for Dexter
units.
INFORMATION
Children shall not play with
the appliance.
INFORMATION
Children of less than 3 years
should be kept away unless
continuously supervised.
INFORMATION
Children must always be
supervised when near the
machine.

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8514-311-001 REV PR
2Safety Symbol Meaning
“DO NOT” WARNING SYMBOLS
Meaning: Do Not Play In Or Around This
Equipment
Meaning: Do Not Step, Stand, or Sit on
This Equipment or Its Components.
Meaning: Do Not Operate with Guards or
Covers Removed. Used When Covering
Moving Hazards.
Meaning: Do Not Touch Output Wires on
Controls Transformer
Meaning: Do Not Operate with Guards or
Covers Removed. Used When Covering
Non-Moving Hazards.
Table 2-1 DO NOT Warning Symbols
WARNING AND DANGER SYMBOLS
Meaning: General caution and special
attention is needed.
Meaning: Cut Hazard! There are sharp edges
on various sheet metal parts internal to the
enclosure. Use safety consciousness when
placing or moving your hands while working
in the interior of this equipment.
Meaning: Shock Hazard! High Voltage
Present. Disconnect power before
servicing.
Meaning: Fire Hazard! Do Not Dry Items
Containing Flammable Material.
Meaning: Burn Hazard! Do Not Touch Door
Glass or Heating Compartments. Allow these
parts to cool before servicing.
Meaning: Explosion Hazard! Do Not Wash
Items Containing Explosive Material.
Meaning: Do Not Operate in Any
Hazardous Classified (ATEX) Environment.
Meaning: Do Not Operate if Door Glass is
Damaged in Any Way.
Meaning: Replace fuses with the same
type and rating.
Table 2-2 Warning and Danger Symbols