Dexter Laundry T-20X2 User manual

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– Do not store or use gasoline or other flammable apors and
liquids in the icinity 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 ser ice must be performed by a qualified
installer, ser ice agency or the gas supplier.
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnin s exactly could
result in serious injury, death or property dama e.
– Ne pas entreposer ni utiliser d'essence ni d'autres apeurs
ou liquides inflammables à proximité de cet appareil ou de tout
autre appareil.
– QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d'allumer d'appareils.
• Ne touchez à aucun interrupteur. Ne pas ous ser er des
téléphones se trou ant dans le bâtiment.
• É acuez la pièce, le bâtiment ou la zone.
• Appelez immédiatement otre fournisseur de gaz depuis
un oisin. Sui ez les instructions du fournisseur.
• Si ous ne pou ez rejoindre le fournisseur de gaz,
appelez le ser ice des incendies.
– L'installation et l'entretien doi ent être assurés par un
installateur ou un ser ice d'entretien qualifié ou par le
fournisseur de gaz.
You, the purchaser, must post in a prominent location
instructions to be followed in the e ent the user smells
gas. Consult your local gas supplier for procedure to
be followed if the odor of gas is present.
AVERTISSEMENT. Assurez-vous de bien suivre
les instructions données dans cette notice pour
réduire au minimum le risque d'incendie ou
d'explosion ou pour éviter tout domma e matérial,
toute blessure ou la mort.
POUR VOTRE SÉCURITÉ
Ne pas enteposer ni utiliser d'essence ni d'autres
vapeurs ou liquides inflammables à proximité
de cet appareil ou de tout autre appareil.
COMMERCIAL DRYER
MODEL T-20X2, T-30X2 & T-50X2 VENDED
C-SERIES CONTROL, NATURAL GAS/LP HEATED
OPERATOR’S MANUAL
INSTALLATION & OPERATION INSTRUCTIONS
The dryer must not be stored or installed where it will be exposed to water and/or weather.
Post the following “For Your Safety” caution in a
prominent location:
It is important that you read this Manual and retain it for
future reference. For ser ice or replacement parts,
contact the distributor in your area or the manufacturer.
FOR YOUR SAFETY
THIS MACHINE IS FOR DRYING ONLY FABRICS CLEANED IN WATER.
To a oid 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 ha e used a cleaning sol ent 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. Remo e all objects from pockets such as lighters and matches.
This appliance can be used by children aged from 8 years and abo e and persons with reduced physical, sensory
or mental capabilities or lack of experience and knowledge if they ha e been gi en super ision or instruction
concerning use of the appliance in a safe way and understand the hazards in ol ed. Children shall not play with
the appliance. Cleaning and user maintenance shall not be made by children without super ision. Children of less
than 3 years should be kept away unless continuously super ised.
Dexter Laundry, Inc.
2211 W. Grimes
Fairfield, Iowa 52556
FOR YOUR SAFETY
Do not store or use gasoline or other flammable
vapors or liquids in the vicinity of this or any other
appliance.

8514-253-001 REV L page 2
TABLE OF CONTENTS
Page No.
Warnings about use and operation 2
Dryer Specifications 3-5
Dryer Dimensions 6-14
Installation Instructions 15
Dryer Shutdown 19
Description of Dryer Control 20
Operating Instructions 20
Programming the Dryer Control 21
Ser icing and Troubleshooting 32
Pre entati e Maintenance Instructions 33
Dual Voltage Con ersion Instructions 34
WARNINGS ABOUT USE AND OPERATION
DO NOT MODIFY THIS APPLIANCE. KEEP SHIELDS, GUARDS, AND COVERS IN PLACE. These
safety de ices are pro ided to protect e eryone from injury.
WARNING: Do not stop dryer before end of cycle time unless all items are quickly remo ed and spread
out to dissipate heat.
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 Electric Code, ANSI//NFPA
70 or Standard CSA C22.1 Canadian Electrical Code Part 1. This is not only for personal safety, but is necessary
for proper operation of the controller. Failure to do so will oid the warranty of the controller.
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 indi idual 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 ser ice
or other similar acti ities. The hour meter function adds only full hours to its reading. If the power is shut off e ery night,
any fraction of an hour of time that is on the machine at that time will be lost. Turning the power off e ery night
could also ha e some effect on the long-term life of the memory after a number of years. Turning power off occasionally
won’t affect the unit.
THIS DRYER IS EQUIPPED WITH AN OVER-TEMPERATURE THERMOSTAT located on the side of
the burner housing for T-30X2 and T-50X2 abo e the gas al e (located on side of exhaust duct for T-20X2 below
burner housing). Should the dryer cease to operate, refer to your “Ser ice 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. It may be reset by inserting a wooden pencil or dowel through the
bushing in the co er. Note: there is no co er on the T-20X2 model.
DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE while in operation.
THIS APPLIANCE SHALL NOT BE USED TO DRY OFF SOLVENTS OR DRY-CLEANING FLUIDS.

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SPECIFICATIONS
20 lb. Commercial Stack Dryer: T-20X2 – DC20X2N_-15EC_X (60 Hz), DC20X2N_-39AC_X (50 Hz)
Cabinet Height 68 1/2” 1740 mm.
(Assumes minimum le eling leg adjustment)
Cabinet Width 27” 686 mm.
Cabinet Depth 44 5/8” 1133 mm.
Floor to Bottom of Door- Bottom Dryer 8 1/2” 216 mm.
Floor to Bottom of Door- Top Dryer 42” 1067 mm.
Door Opening 18 1/8” 460 mm.
Dry Wt. Capacity 20 x 2 lbs. 9.1 x 2 kg.
Cylinder Diameter 25 1/2” 648 mm.
Cylinder Depth 24” 610 mm.
Cylinder Volume 7.0 cu. ft. 198 liters
Lint Screen Area 285 sq. in. 1839 sq. cm.
Gas Input (per dryer- 60 hz) 56,000 Btu/hr 59MJ/hr (16.4 kW)
Gas Input (per dryer- 50 hz) 47,000 Btu/hr 50MJ/hr (13.8 kW)
Gas Supply Connection 1/2” 12.7 mm.
Natural Gas Supply (Water Column) 5” - 8” 127 mm. - 203 mm./1.25kPa – 1.99kPa
Natural Burner Manifold
(60 hz Water Column) 3.5” 88.9 mm./0.87kPa
(50 hz Water Column) 3.5” 88.9 mm./0.87kPa
Propane or ULPG Supply (Water Column) 11.5” – 13.5” 292 mm. - 343 mm./2.86kPa - 3.36kPa
Burner Manifold Pressure
Propane (60 hz Water Column) 11” 279 mm./2.75kPa
Propane or ULPG (50 hz Water Column) 11” 279 mm./2.75kPa
Exhaust Size 8” 203 mm.
Make-up Air 1.0 sq. ft. 929 sq. cm.
Example: 1.0 sq. ft = 1 ft. long X 1 ft. wide
Motor Size (per dryer) 1/3 H.P. .248 kW
Airflow (per dryer - 60 hz) 370 CFM 10.5 m^3/min
Airflow (per dryer - 50 hz) 300 CFM 8.5 m^3/min
Electrical Specifications - 120/60/1
Voltage/Hz/Phase 120V/60Hz/1Phase
Running Amps 7.8
Circuit Protection Amps 20
Wire Size 12 gauge
Electrical Ser ice 2 wire + ground
Electrical Specifications - 208-240/60/1
Voltage/Hz/Phase 208-240V/60Hz/1Phase
Running Amps 3.8
Circuit Protection Amps 15
Wire Size 12 gauge
Electrical Ser ice 2 wire + ground
Electrical Specifications - 230/50/1
Voltage/Hz/Phase 230V/50Hz/1Phase
Running Amps 6.6
Circuit Protection Amps 15
Wire Size 12 gauge
Electrical Ser ice 2 wire + ground
Shipping Weight 650 lbs. 295 kg.
Net Weight 615 lbs. 279 kg.
Clearance Behind Machines (min.) 18” 457 mm.

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SPECIFICATIONS
30 lb. Commercial Stack Dryer: T-30X2 - DC30X2N_-15EC_X (60 Hz), DC30X2N_-39AC_X (50 Hz)
Cabinet Height 76 1/4” 1937 mm.
(Assumes minimum le eling leg adjustment)
Cabinet Width 31 1/2” 800 mm.
Cabinet Depth 49 1/2” 1257 mm.
Floor to Bottom of Door- Bottom Dryer 7 5/8” 194 mm.
Floor to Bottom of Door- Top Dryer 45 1/4” 1149 mm.
Door Opening 22 5/8” 575 mm.
Dry Wt. Capacity 30 x 2 lbs. 13.6 x 2 kg.
Cylinder Diameter 30” 762 mm.
Cylinder Depth 27 1/2” 699 mm.
Cylinder Volume 11.25 cu. ft. 319 liters
Lint Screen Area 453 sq. in. 2923 sq. cm.
Gas Input (per dryer- 60 hz) 90,000 Btu/hr 95MJ/hr (26.4 kW)
Gas Input (per dryer- 50 hz) 74,000 Btu/hr 78MJ/hr (21.7 kW)
Gas Supply Connection 1/2” 12.7 mm.
Natural Gas Supply (Water Column) 5” - 8” 127 mm. - 203 mm./1.25kPa – 1.99kPa
Natural Burner Manifold
(60 hz Water Column) 3.5” 88.9 mm./0.87kPa
(50 hz Water Column) 3.4” 86.4 mm./0.84kPa
Propane or ULPG Supply (Water Column) 11.5” – 13.5” 292 mm. - 343 mm./2.86kPa - 3.36kPa
Burner Manifold Pressure
Propane (60 hz Water Column) 11” 279 mm./2.75kPa
Propane or ULPG (50 hz Water Column) 10” 254 mm./2.50kPa
Exhaust Size 8” 203 mm.
Make-up Air 1.5 sq. ft. 1394 sq. cm.
Example: 1.5 sq. ft = 1 ft. long X 1.5 ft. wide
Motor Size 1/2 H.P. .373 kW
Airflow (60 hz) 600 CFM 17.0 m^3/min
Airflow (50 hz) 500 CFM 14.2 m^3/min
Electrical Specifications - 120/60/1
Voltage/Hz/Phase 120V/60Hz/1Phase
Running Amps 8.0
Circuit Protection Amps 20
Wire Size 12 gauge
Electrical Ser ice 2 wire + ground
Electrical Specifications - 208-240/60/1
Voltage/Hz/Phase 208-240V/60Hz/1Phase
Running Amps 5.0
Circuit Protection Amps 15
Wire Size 12 gauge
Electrical Ser ice 2 wire + ground
Electrical Specifications - 230/50/1
Voltage/Hz/Phase 230V/50Hz/1Phase
Running Amps 10.0
Circuit Protection Amps 15
Wire Size 12 gauge
Electrical Ser ice 2 wire + ground
Shipping Weight 750 lbs. 340 kg.
Net Weight 699 lbs. 317 kg.
Clearance Behind Machines (min.) 18” 457 mm.

8514-253-001 REV L page 5
SPECIFICATIONS
50 lb. Commercial Stack Dryer: T-50X2 – DC50X2N_-15EC_X (60 Hz), DC50X2N_-49AC_X (50 Hz)
Cabinet Height 79 1/4” 2012 mm.
(Assumes minimum le eling leg adjustment)
Cabinet Width 34 1/2” 876 mm.
Cabinet Depth 54 3/4” 1391 mm.
Floor to Bottom of Door- Bottom Dryer 7” 178 mm.
Floor to Bottom of Door- Top Dryer 46” 1168 mm.
Door Opening 25 5/8” 651 mm.
Dry Wt. Capacity 50 x 2 lbs. 22.7 x 2 kg.
Cylinder Diameter 32 1/2” 826 mm.
Cylinder Depth 33” 838 mm.
Cylinder Volume 15.84 cu. ft. 448 liters
Lint Screen Area 544 sq. in. 3510 sq. cm.
Gas Input (per dryer- 60 hz) 108,000 Btu/hr 114MJ/hr (31.7 kW)
Gas Input (per dryer- 50 hz) 96,500 Btu/hr 102MJ/hr (28.3 kW)
Gas Supply Connection 1/2” 12.7 mm.
Natural Gas Supply (Water Column) 5” - 8” 127 mm. - 203 mm./1.25kPa – 1.99kPa
Natural Burner Manifold
(60 hz Water Column) 3.5” 88.9 mm./0.87kPa
(50 hz Water Column) 3.5” 88.9 mm./0.87kPa
Propane or ULPG Supply (Water Column) 11.5” – 13.5” 292 mm. - 343 mm./2.86kPa - 3.36kPa
Burner Manifold Pressure
Propane (60 hz Water Column) 11” 279 mm./2.75kPa
Propane or ULPG (50 hz Water Column) 10” 254 mm./2.40kPa
Exhaust Size 8” 203 mm.
Make-up Air 1.5 sq. ft. 1394 sq. cm.
Example: 1.5 sq. ft = 1 ft. long X 1.5 ft. wide
Motor Size 3/4 H.P. 0.560 kW
Airflow (60 Hz) 650 CFM 18.4 m^3/min
Airflow (50 hz) 510 CFM 14.4 m^3/min
Electrical Specifications - 120/60/1
Voltage/Hz/Phase 120V/60Hz/1Phase 120V/60Hz/1Phase
Running Amps 20.0
Circuit Protection Amps 30
Wire Size 10 gauge
Electrical Ser ice 2 wire + ground
Electrical Specifications - 208-240/60/1
Voltage/Hz/Phase 208-240V/60Hz/1Phase
Running Amps 10.0
Circuit Protection Amps 20
Wire Size 12 gauge
Electrical Ser ice 2 wire + ground
Electrical Specifications - 240/50/1
Voltage/Hz/Phase 240V/50Hz/1Phase
Running Amps 10.0
Circuit Protection Amps 20
Wire Size 12 gauge
Electrical Ser ice 2 wire + ground
Shipping Weight 917 lbs. 416 kg.
Net Weight 857 lbs. 389 kg.
Clearance Behind Machines (min.) 18” 457 mm.

8514-253-001 REV L page 6
T-20X2 DRYER DIMENSIONS - FRONT VIEW

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T-20X2 DRYER DIMENSIONS - SIDE VIEW

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T-20X2 DRYER DIMENSIONS - REAR VIEW

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T-30X2 DRYER DIMENSIONS - FRONT VIEW

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T-30X2 DRYER DIMENSIONS - SIDE VIEW

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T-30X2 DRYER DIMENSIONS - REAR VIEW

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T-50X2 DRYER DIMENSIONS- FRONT VIEW

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T-50X2 DRYER DIMENSIONS - SIDE VIEW

8514-253-001 REV L page 14
T-50X2 DRYER DIMENSIONS - REAR VIEW
8 INCH [203] VENT

8514-253-001 REV L page 15
INSTALLATION INSTRUCTIONS
UNCRATING AND PLACING DRYER
Tools Required: 3/4" (19 mm) hex socket & ratchet dri er, wood block 4" (100 mm) or 5" (125 mm) thick, a knife
and a groo e joint pliers, which will open to 1 3/8" (35 mm).
1. Remo e and discard packaging.
2. The crate base is attached to the dryer by (4) cap screws dri en upward from below the crate base. Remo e crate
base from dryer, by tipping dryer sidewise and place block under crate base rail in center of dryer. Using a
ratchet and 3/4" hex socket, remo e and discard (2) crating bolts from side, which is raised. Remo e block
from under crate base. Repeat for other side. Sa e the bolts for use if the dryer is e er mo ed again.
3. With a walking motion mo e dryer completely off crate base. Sa e the crate base for use if the dryer is
e er mo ed again.
4. Slide unit into position where it will be installed. Adjust le eling legs, using the groo e joint pliers, to le el and
align dryer with adjacent units.
Note: If the dryer is e er mo ed again, the dryer should be re-mounted on its crate base and its crating bolts
re-inserted and tightened, in the re erse order as abo e.
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 the current Standard CAN/CGA-B149 (.1 or .2) Installation Code for Gas Burning Appliances or
Equipment, and local codes if applicable. Australian installations must meet installation requirements and pipe
sizing requirements of AS/NZA 5601. 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.
The appliance must not be installed behind a lockable door, a sliding door or a door with a hinge on the
opposite side to that of the tumble dryer, in such a way that a full opening of the tumble dryer door is
restricted.
2. INSTALLATION CLEARANCES: This unit may be installed at the following alco e clearances:
I. Left Side 0"
II. Right Side 0"
III. Back 18" (457 mm) (Certified for 6" (150 mm) clearance; howe er, 18" (457 mm) clearance is
necessary behind the motors to allow ser icing and maintenance.)
IV. Front 48" (1220 mm) (to allow use of dryer)
V. Top Refer to figure labeled “Vertical Clearance Dimensions”.
AB. Certification allows 0" clearance for wall framing at the top up to 18" (456 mm)
back from the front.
Howe er, a 1/4" (6 mm) clearance should be allowed in case the dryer needs mo ing.
C. A 10" (250 mm) clearance is required from top at all other points.
VI. Floor This unit may be installed upon a combustible floor.
Do not obstruct the flow of combustion and entilation air.
Maintain minimum of 1" (25 mm) clearance between duct and combustible material.
Refer to the label attached to the Belt Guard on the rear of the dryer for other installation information and
start-up instructions.
3. MAKE-UP AIR: Adequate make-up air must be supplied to replace air exhausted by dryers on all types of
installations. Refer to specifications for the minimum amount of make-up air opening to outside for each dryer.
This is a net requirement of effecti e area. Screens, grills or lou ers, which will restrict the flow of air, must be
considered. Consult the supplier to determine the free area equi alent for the grill being used. The source of
make-up air should be located sufficiently away from the dryers to allow an e en airflow to the air intakes of
all dryers. Multiple openings should be pro ided.

8514-253-001 REV L page 16
The sources of all make-up air and room entilation air mo ement to all dryers must be located away from
any dry cleaners. This is necessary so that sol ent apors will not be drawn into the dryer inlet ducts. Dry
cleaner sol ent apors will decompose in contact with open flame such as the gas flame present in clothes
dryers. The decomposition products are highly corrosi e and will cause damage to the dryer(s) ducts and
clothes loads.
The operation of this appliance may affect the operation of other types of gas appliances, which take their
air for safe combustion from the same room. Adequate entilation must be pro ided to a oid back flow of
gasses from other appliances in the same room. All other gas appliances should be tested with the Dexter
dryer in operation and all the windows and doors closed. If in doubt consult the appliance
manufacturer(s).
4. ELECTRICAL REQUIREMENTS. The electrical power requirements necessary to operate the unit satisfactorily are
listed on the serial plate located on the back panel of each dryer and in the specifications section of this
manual. The electrical connection should be made to the terminal board, on the rear of the unit. It is
absolutely necessary that the dryer be grounded to a known ground. Indi idual circuit breakers for each
stacked dryer are required. Dryer -15 models are adjusted for 120V as shipped. They can be con erted
to 208-240V as required. Instructions for this con ersion are located at this end of this manual.
The installer must pro ide a disconnect switch which will interrupt both lines. It may be a local or national
requirement to pro ide an electrical interruption switch isible and accessible from the room in which the dryer is
installed. The wiring diagram is located on the back of the door of the rear control box assembly of the dryer.
IMPORTANT: TRANSIENT VOLTAGE SURGE SUPPRESSORS
Like most electrical equipment, your new machine can be damaged or ha e its life shortened by oltage
surges due to lightning strikes which are not co ered by factory warranty. Local power distribution
problems also can be detrimental to the life of electrical components. We recommend the installation of
transient oltage surge suppressors for your new equipment. These de ices may be placed at the power
supply panel for the complete installation and don’t require an indi idual de ice for each machine.
These surge protectors help to protect equipment from large spikes and also from small ongoing spikes in
the power that occur on a day to day basis. These smaller surges can shorten o erall life of electrical
components of all types and cause their failure at a later date. Although they can’t protect against all
e ents, these protecti e de ices ha e a good reputation for significantly lengthening the useful life of

8514-253-001 REV L page 17
electronic components. Electronic components are helped to ha e a longer useful life when they are
supplied with the clean stable electrical power they like.
We are including the following names and phone numbers of a few suppliers of these de ices for those who
don’t currently ha e a source.
MANUFACTURER CONTACT PHONE
Inno ati e Technology, Inc Factory 1-800-647-8877 or www.it ss.com
EFI Electronics Corporation Factory 1-800-877-1174 or www.efinet.com
Distributor – Surge Pro 1-877-233-0153
MCG Surge Protection Factory 1-800-851-1508 or www.mcgsurge.com
Ad anced Protection Technologies Inc. Factory 1-800-237-4567 or info@aptt ss.com
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 and in the specifications section of this manual.
The inlet gas connection to the unit is 1/2-inch pipe thread. Howe er, the size of the piping to supply the dryer
should be determined by reference to the National Fuel Gas Code ANSI Z223.1A and consultation with the local
gas supplier.
An indi idual gas shutoff al e is recommended for each dryer and may be required by local code (not
supplied).
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 is pro ided in the unit gas piping to catch dirt and other foreign articles.
All pipe connections should be checked for leakage with soap solution. Ne er check with an open flame.
The recommended natural gas supply pressure is 7 inches water column (17.8 cm) at each dryer.
For altitudes abo e 2,000 feet (610m), it is necessary to derate the BTU input. Contact your local
distributor for instructions.
L.P. gas con ersion kits are a ailable for this dryer. Contact your local distributor.
CAUTION: 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 al e to testing pressure.
6. EXHAUST INSTALLATION. 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,
excessi e 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.
The exhaust duct connection near the top of the dryer will accept an 8” (200 mm) round duct. Indi idual
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 collars and extending it out through an outside
wall. This pipe must be ery smooth on the inside, as rough surfaces tend to collect lint, which will e entually
clog the duct and pre ent 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 amount of air the blower can exhaust. This does not affect the dryer

8514-253-001 REV L page 18
operation if held within practical limits. For the most efficient operation, it is recommended that no more than
14 ft. (4.25 m) of straight 8 in. diameter pipe with two right angle elbows be used for each cylinder.
Maintain a minimum of 1” (25mm) clearance between duct and combustible material.
If the exhaust pipe passes through a wall, a metal slee e of slightly larger diameter should be set in the
wall and the exhaust pipe passed through this slee e. This practice is required by some local codes and is
recommended in all cases to protect the wall.
This type of installation should ha e a means pro ided to pre ent 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 pre ent entrance of wind and
rain. In either case, the outlet should be kept clear, by at least 24 in. (610 mm) of any objects, which
would cause air restriction.
Ne er install a protecti e screen o er the exhaust outlet.
When exhausting a dryer straight up through a roof, the o erall 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” o er 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 buildup, which can be highly combustible.
NOTE: Exhaust air must not be discharged into a flue which is used for exhausting fumes from
appliances burning gas or other fuels.
Installation of se eral dryers, where a main discharge duct is necessary, will need the following considerations
for installation (see Figure 3). Indi idual 8” (200 mm) exhaust ducts from each dryer should enter main
discharge duct at a 45-degree angle in the direction of discharge airflow.
NOTE: Ne er install the indi idual ducts at a right angle into the main discharge duct. The
indi idual ducts from the dryers can enter at the sides or bottom of the main discharge duct.
Figure 3 indicates the arious round main duct diameters to use with the indi idual dryer ducts.
The main duct can be rectangular or round, pro ided adequate airflow is maintained. The total
exhausting (main discharge duct plus duct outlet from the dryer) should not exceed the
equi alent of 14 ft. (4.25 m) 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 elocity -
both contributing to lint build up. An inspection door should be pro ided for periodic clean out of
the main duct.

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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-relay (in the electronic controller) calls for heat. The procedure for
first-time starting of a dryer is as follows.
i.First re iew and comply with the "Warnings About Use and Operation" found on the inside front co er of this
manual. Be sure electrical power is connected correctly. The dryer must be properly grounded.
ii.Make sure all gas supply lines are purged of air. Close the main gas shut-off al e and wait for fi e minutes before
turning it back on.
iii.Turn on the main electrical power switch. The dryer may be started by following the "Operating Instructions" found
later in this manual.
i .Natural gas and LPG fired dryers operate in the same manner. When the gas al e relay contacts are closed
(indicating a demand for heat), the solid-state ignition control will automatically supply energy to the redundant gas
al e. Sparking will continue until a flame is detected by the sensing probe, but not longer than ten seconds. If the
gas fails to ignite in 10 seconds, the gas al e closes and the gas system pauses to allow gas to purge from the inside of
the dryer. After the pause, the ignition control repeats the ignition trial cycle twice more. If the gas system fails to
detect ignition after the three attempts, the system will "lock out". No further attempts will be performed
automatically. To reset the ignition control electrical power to the ignition control must be interrupted. This can be
done by opening the dryer door (stopping the dryer) for 15 seconds. Closing the door and pushing the "Start" button
will 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 screw. Adjust the shutter by closing it sufficiently to gi e 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 inoperati e, turn off the main gas shut off al e and disconnect the electrical supply to the
dryer.
NOTE: The installer must test the dryer for operation and instruct the user before lea ing the installation.

8514-253-001 REV L page 20
DESCRIPTION OF DRYER CONTROL
Both dryers are operated by the controller at the left midpoint of the dryer. The controller is two-in-one with the upper
display and lights dedicated to the upper dryer and lower display and lights dedicated to the lower dryer.
When money has been deposited, the control will prompt the user to choose a drying temperature and press the “start”
button. Time is not added until this occurs for either the upper or lower dryer. If no purchased time is a ailable on the
control, the end price is displayed.
The drying program (temperature) selected by the user is indicated by the red lights at the top and bottom. When the
dryer is in use, the drying temperature may be displayed by simultaneously pressing the “start” button and the button of the
temperature selected.
OPERATING INSTRUCTIONS
STARTING THE DRYER
1. Load clothes into either the upper or lower dryer (or both). Close the door(s) completely.
2. Deposit coins equal to or greater than the displayed end price. The control will prompt the user to choose a drying
temperature. Time is not added until this occurs for either the upper or lower dryer.
3. Select drying temperature by pressing the appropriate button for the dryer to be used. This will turn on the red
light showing the selected temperature.
4. Press “start” button to start dryer. This will display the drying time purchased.
RUNNING THE DRYER
-Opening the door will stop the dryer. The dryer will restart, if time has not expired, upon closing the door
and pressing the “start” button.
-Selected temperature may be changed at any time (unless Temperature Pricing feature is acti ated).
-Running time may be extended by depositing coins and pressing the “start” button for the correct dryer. Unless
time has expired, the controller will accept coins whether or not the original end price is equaled.
-If time has run out, the dryer must be restarted as if it was at the beginning of drying the load, which requires
meeting or exceeding the end price.
-Clothes should be remo ed promptly after the cycle is completed to pre ent excessi e wrinkling.