MAXIDRY MAXIMD200 User manual

MAXIMD200 Installation Manual
Phase 7 / Non-Coin / Non-Tilting Options
Part No. 113274-1
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 dommage matériel, toute blessure ou
la mort.
—Ne pas entreposer ni utiliser d’essence
ni d’autres vapeurs 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 vous servir des téléphones se
trouvant dans le bâtiment.
●Évacuez la pièce, le bâtiment ou la
zone.
●Appelez immédiatement votre
fournisseur 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.
WARNING: For your safety the information
in this manual must be followed to
minimize the risk of fire or explosion and
to prevent property damage, personal
injury or death.
— 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.
Maxidry

We have tried to make this manual as complete as possible and hope you will find it useful. The manufacturer
reserves the right to make changes from time to time, without notice or obligation, in prices, specifications,
colors, and material, and to change or discontinue models. The illustrations included in this manual may not
depict your particular dryer exactly.
IMPORTANT
For your convenience, log the following information:
DATE OF PURCHASE ______________________________________________________MODEL NO. _________________
RESELLER’S NAME ___________________________________________________________________________________
SERIAL NUMBER(S) ___________________________________________________________________________________
____________________________________________________________________________________________________
____________________________________________________________________________________________________
MAXIMD200
“IMPORTANT NOTE TO PURCHASER”
Information must be obtained from your local gas supplier on the
instructions to be followed if the user smells gas. These instructions
must be posted in a prominent location near the dryer.
FOR YOUR SAFETY
Do not store or use gasoline
or other flammable vapors
and liquids in the vicinity of
this or any other appliance.
POUR VOTRE SÉCURITÉ
Ne pas entreposer ni utiliser d’essence
ni d’autres vapeurs ou liquides
inflammables à proximité de cet
appareil ou de tout autre appareil.
Retain This Manual in a Safe Place for Future Reference
This product embodies advanced concepts in engineering, design, and safety. If this product is properly
maintained, it will provide many years of safe, efficient, and trouble free operation.
Only qualified technicians should service this equipment.
OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation
manual included with the dryer.
The following “FOR YOUR SAFETY” caution must be posted near the dryer in a prominent location.

“Caution: Label all wires prior to
disconnection when servicing
controls. Wiring errors can
cause improper operation.”
«Attention:Au moment de l’entretien des commandes,
étiquetez tous les fils avant de les débrancher. Des
erreurs de câblage peuvent entraîner un fonctionnement
inadéquat et dangereux.»
WARNING
CHILDREN SHOULD NOT BE ALLOWED TO PLAY ON OR NEAR THE DRYERS.
CHILDREN SHOULD BE SUPERVISED IF NEAR DRYERS IN OPERATION.
IMPORTANT
YOU MUST DISCONNECT AND LOCKOUT THE ELECTRIC SUPPLYAND THE GAS
SUPPLY OR THE STEAM SUPPLY BEFORE ANY COVERS OR GUARDS ARE
REMOVED FROM THE MACHINE TOALLOWACCESS FOR CLEANING, ADJUSTING,
INSTALLATION, OR TESTING OFANY EQUIPMENT PER OCCUPATIONAL SAFETY
AND HEALTHADMINISTRATION (OSHA) STANDARDS.
CAUTION
DRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION.
Proposition 65
Use of this product could expose you to substances from fuel combustion
that contain chemicals known to the State of California to cause cancer,
birth defects and other reproductive harm.
▲ WARNING
!
In the State of Massachusetts, the following installation instructions apply:
■Installations and repairs must be performed by a qualified or licensed contractor, plumber,
or gasfitter qualified or licensed by the State of Massachusetts.
■If using a ball valve, it shall be a T-handle type.
■A flexible gas connector, when used, must not exceed 3 feet.

IMPORTANT
PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/
or specified in the installation manual included with the dryer.
WARNING
DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER/SCREEN IN
PLACE, EVEN IF AN EXTERNAL LINT COLLECTION SYSTEM IS USED.
Dryer must not be installed or stored in an area where it will be exposed to water or
weather.
WARNING
The dryer must never be operated with any of the back guards, outer tops, or
service panels removed. PERSONAL INJURY OR FIRE COULD RESULT.
IMPORTANT
Dryer must be installed in a location/environment, which the ambient temperature
remains between 40° F (4.44° C) and 130° F (54.44° C).
The wiring diagram for the dryer is located in the front electrical control box area.
WARNING
UNDER NO CIRCUMSTANCES should the dryer door switches, lint drawer switch,
heat safety circuit ever be disabled.
FOR YOUR SAFETY
DO NOT DRY MOP HEADS IN THE DRYER.
DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES.

Table of Contents
SECTION I
IMPORTANT INFORMATION .........................................................................3
A. Receiving and Handling ...........................................................................................................3
B. Safety Precautions ..................................................................................................................4
SECTION II
SPECIFICATIONS/DIMENSIONS AND COMPONENT LOCATION.............6
A. Specifications (Gas and Steam) ..............................................................................................6
B. Dimensions and Component Location ....................................................................................7
SECTION III
INSTALLATION PROCEDURES ....................................................................9
A. Reassembly Of Dryer .............................................................................................................9
B. Location Requirements .........................................................................................................14
C. Fresh Air Supply Requirements ............................................................................................15
D. Exhaust Requirements .........................................................................................................16
E. Compressed Air Supply System ...........................................................................................22
F. Electrical Information.............................................................................................................24
G. Gas Information .....................................................................................................................28
H. Water Supply Connection For Sensor Activated Fire Extinguishing (S.A.F.E.) System ........31
I. Steam Information .................................................................................................................32
J. Preoperational Tests .............................................................................................................37
K. Preparation For Operation/Start-Up.......................................................................................39
L. Shutdown Instructions ...........................................................................................................40
SECTION IV
SERVICE/PARTS INFORMATION ...............................................................41
A. Service ..................................................................................................................................41
B. Parts ......................................................................................................................................41
SECTION V
WARRANTY INFORMATION ........................................................................42
A. Returning Warranty Cards ....................................................................................................42
B. Warranty ................................................................................................................................42
C. Returning Warranty Parts......................................................................................................42

SECTION VI
ROUTINE MAINTENANCE ...........................................................................44
A. Cleaning ................................................................................................................................44
B. Adjustments ..........................................................................................................................46
C. Lubrication .............................................................................................................................46
SECTION VII
COMPONENT SYSTEM DESCRIPTIONS..................................................47
A. Tumbler Drive System ..........................................................................................................47
B. Tumbler .................................................................................................................................48
C. Air Blower Drive System .......................................................................................................48
D. Safety Devices ......................................................................................................................48
E. Steam Damper Actuator System ..........................................................................................50
SECTION VIII
MANUAL RESET BURNER HI-LIMIT INSTRUCTIONS ..............................51
SECTION IX
DATA LABEL INFORMATION ......................................................................52
SECTION X
PROCEDURE FOR FUNCTIONAL CHECK
OF REPLACEMENT COMPONENTS .........................................................53
SECTION XI
OPTIONAL SENSOR ACTIVATED
FIRE EXTINGUISHING (S.A.F.E.) SYSTEM ................................................54
SECTION XII
NON-COIN PROGRAMMING........................................................................59

113274-1 3
SECTION I
IMPORTANT INFORMATION
A. RECEIVING AND HANDLING
The dryer is shipped in a protective stretch wrap cover with protective cardboard corners and top cover (or
optional box) as a means of preventing damage in transit. Upon delivery, the dryer and/or packaging, and wooden
skid should be visually inspected for shipping damage. If any damage whatsoever is noticed, inspect further
before delivering carrier leaves.
Dryers damaged in shipment:
1. ALL dryers should be inspected upon receipt and before they are signed for.
2. If there is suspected damage or actual damage, the trucker’s receipt should be so noted.
3. If the dryer is damaged beyond repair, it should be refused. Those dryers, which were not damaged in a
damaged shipment should be accepted, but the number received and the number refused must be noted
on the receipt.
4. If you determine that the dryer was damaged after the trucker has left your location, you should call the
delivering carrier’s freight terminal immediately and file a claim. The freight company considers this concealed
damage. This type of freight claim is very difficult to get paid and becomes extremely difficult when more
than a day or two passes after the freight was delivered. It is your responsibility to file freight claims.
Dryer/parts damaged in transit cannot be claimed under warranty.
5. Freight claims are the responsibility of the consignee, and ALL claims must be filed at the receiving end.
The manufacturer assumes no responsibility for freight claims or damages.
6. If you need assistance in handling the situation, please contact the manufacturer.
IMPORTANT: The tumbler section of the dryer must be transported and handled in an upright
position at ALL times.

4113274-1
B. SAFETY PRECAUTIONS
WARNING: For your safety, the information in this manual must be followed to minimize the risk of
fire or explosion or to prevent property damage, personal injury, or loss of life.
WARNING: The dryer must never be operated with any of the back guards, outer tops, or
service panels removed. PERSONALINJURYOR FIRE COULD RESULT.
1. DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
2. Purchaser/user should consult the local gas supplier for proper instructions to be followed in the event the
user smells gas. The instructions should be posted in a prominent location.
3. WHAT TO DO IF YOU SMELL GAS...
a. DO NOT try to light any appliance.
b. DO NOT touch any electrical switch.
c. DO NOT use any phone in your building.
d. Clear the room, building, or area of ALL occupants.
e. Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
f. If you cannot reach your gas supplier, call the fire department.
4. Installation and service must be performed by a qualified installer, service agency, or gas supplier.
5. Dryer(s) must be exhausted to the outdoors.
6. Although the manufacturer produces a very versatile dryer, there are some articles that, due to fabric
composition or cleaning method, should not be dried in it.
WARNING: Dry only water washed fabrics. DO NOT dry articles spotted or washed in dry
cleaning solvents, a combustible detergent, or “all purpose” cleaner.
EXPLOSION COULD RESULT.
WARNING: DO NOT dry rags or articles coated or contaminated with gasoline, kerosene, oil, paint,
or wax.
EXPLOSION COULD RESULT.
WARNING: DO NOT dry mop heads. Contamination by wax or flammable solvents will create a
fire hazard.
WARNING: DO NOT use heat for drying articles that contain plastic, foam, sponge rubber, or
similarly textured rubber materials. Drying in a heated tumbler may damage plastics or
rubber and may be a fire hazard.

113274-1 5
7. A program should be established for the inspection and cleaning of lint in the heating unit area, exhaust
ductwork, and inside the dryer. The frequency of inspection and cleaning can best be determined from
experience at each location.
WARNING: The collection of lint in the burner area and exhaust ductwork can create a potential fire
hazard.
8. For personal safety, the dryer must be electrically grounded in accordance with local codes and/or the
National Electrical Code ANSI/NFPA NO. 70-LATEST EDITION or in Canada, the Canadian Electrical
Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION.
NOTE: Failure to do so will VOID THE WARRANTY.
9. UNDER NO CIRCUMSTANCES should the dryer door switches, lint drawer switch, heat safety circuit
ever be disabled.
WARNING: PERSONALINJURY OR FIRE COULD RESULT.
10. This dryer is not to be used in the presence of dry cleaning solvents or fumes.
11. Remove articles from the dryer as soon as the drying cycle has been completed.
WARNING: Articles left in the dryer after the drying and cooling cycles have been completed can
create a fire hazard.
12. DO NOT operate steam dryers with more than 125 PSI (8.62 bar) steam pressure. Excessive steam
pressure can damage steam coil and/or harm personnel.
13. Replace leaking flexible hoses or other steam fixtures immediately. DO NOT operate the dryer with
leaking flexible hoses. PERSONAL INJURY MAY RESULT.
14. READ AND FOLLOW ALL CAUTION AND DIRECTION LABELS ATTACHED TO THE
DRYER.
15. For safety, proper operation, and optimum performance, the dryer must not be operated with a load less
than sixty-six percent (66%), 132 lb (59.9 kg) of its rated capacity.
WARNING: YOU MUST DISCONNECTAND LOCKOUT THE ELECTRIC SUPPLYAND
THE GAS SUPPLY OR THE STEAM SUPPLYBEFOREANY COVERS OR
GUARDSARE REMOVED FROM THE MACHINE TOALLOWACCESS
FOR CLEANING, ADJUSTING, INSTALLATION, OR TESTINGOFANY
EQUIPMENT PER OSHA (Occupational Safety and HealthAdministration)
STANDARDS.
IMPORTANT: Dryer must be installed in a location/environment, which the ambient temperature
remains between 40° F (4.44° C) and 130° F (54.44° C).

6113274-1
MAXIMUM CAPACITY(DRY WEIGHT) 200 lb 90.72 kg
TUMBLER DIAMETER 62-1/2” 158.75 cm
TUMBLER DEPTH 42” 106.68 cm
TUMBLER VOLUME 74.5 cu ft 2109.60 L
TUMBLER/DRIVE MOTOR 3 hp 2.24 kW
BLOWER/FAN MOTOR (REAR / SIDE EXHAUST) 7-1/2 hp / 15 hp 5.6 kW / 11.2 kW
DOOR OPENING (DIAMETER)*36-3/4” w x 43” h 93.3 cm w x 109.2 cm h
DOOR SILL HEIGHT 36-1/2” 92.71 cm
WATER CONNECTION** 3/4” F.N.P.T.
VOLTAGE AVAILABLE 208-575V 3ø 3,4w 50/60 Hz
APPROX. NET WEIGHT 3,370 lb 1,528.61 kg
APPROX. SHIPPING WEIGHT 4,127 lb 1,871.98 kg
AIRFLOW 5,300 cfm 150.08 cmm
HEAT INPUT 650,000 Btu/hr 163,797 kcal/hr
EXHAUST CONNECTION (DIAMETER) 20” 50.80 cm
COMPRESSED AIR CONNECTION*** 1/8” F.N.P.T.
COMPRESSED AIR VOLUME 3.25 cfh 0.09 cmh
INLET PIPE CONNECTION 1-1/2” F.N.P.T.
VOLTAGE AVAILABLE
N / A
APPROX. NET WEIGHT
APPROX. SHIPPING WEIGHT
AIRFLOW
EXHAUST CONNECTION (DIAMETER)
COMPRESSED AIR CONNECTION
COMPRESSED AIR VOLUME
OVEN SIZE
kW Btu/hr kcal/hr
VOLTAGE AVAILABLE 208-575V 3ø 3,4w 50/60 Hz
APPROX. NET WEIGHT 3,625 lb 1,644.27 kg
APPROX. SHIPPING WEIGHT 3,891 lb 1,764.93 kg
AIRFLOW 6,500 cfm 184.06 cmm
STEAM CONSUMPTION 890 lb/hr 403.70 kg/hr
OPERATING STEAM PRESSURE 125 psi max 8.62 bar
EXHAUST CONNECTION (DIAMETER) 20” 50.80 cm
COMPRESSED AIR CONNECTION*** 1/8” F.N.P.T.
COMPRESSED AIR VOLUME 3.25 cfh 0.09 cmh
BOILER HP (NORMAL LOAD) 27 Bhp
SUPPLY CONNECTION 2” M.N.P.T.
RETURN CONNECTION 2” M.N.P.T.
SECTION II
SPECIFICATIONS/DIMENSIONS
AND COMPONENT LOCATION
A. SPECIFICATIONS (GAS AND STEAM)
Shaded areas are stated in metric equivalents 11/11/04
* Dryer must be provided with clean, dry and regulated 80 psi +/- 10 psi (5.51 bar +/- 0.69 bar) air supply.
** Water supply must be 40 psi +/- 20 psi (2.75 bar +/- 1.37 bar) for fire suppression system to operate properly.
*** Height is 43-inches (109.22 cm) maximum at the center of the door.
NOTE: The manufacturer reserves the right to make changes in specifications at any time without
notice or obligation.
GasElectricSteam

113274-1 7
B. DIMENSIONS AND COMPONENT LOCATION
*NON-TILT GAS MODEL

8113274-1
*NON-TILT STEAM MODEL

113274-1 9
SECTION III
INSTALLATION PROCEDURES
Installation should be performed by competent technicians in accordance with local and state codes. In the
absence of these codes, the installation must conform to applicableAmerican National Standards:ANSI Z223.1-
LATEST EDITION (National Fuel Gas Code) or ANSI/NFPA NO. 70-LATEST EDITION (National Electrical
Code) or in Canada, the installation must conform to applicable Canadian Standards: CAN/CGA-B149.1-M91
(Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane Gas) or LATEST EDITION (for General Installation
and Gas Plumbing) or Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION (for
Electrical Connections).
A. REASSEMBLYOF DRYER
IMPORTANT: Always keep the tumbler section of the dryer in an upright position when moving it.
The dryer may be shipped one (1) of two (2) ways; as a complete unit fully assembled and ready for hookup or
with the tumbler section separated from the base. If the dryer is shipped in two (2) pieces, the tumbler section
will have to be lifted onto the base. Use cables through the eyebolts on top of the tumbler section, or use a forklift
for the lifting process.

10 113274-1
1. Reassembly Instructions For Gas Dryer Shipped In Two (2) Pieces

113274-1 11
a. Reassembly Instructions For Non-Tilt Gas Dryers:
Lift the tumbler section onto the base.
1) The dryer has four (4) support posts assemblies, which are located in each corner of the base. On
top of each post assembly is a clevis block, which must be bolted to the tumbler section. Use the
4-1/2” diameter x 1-1/8” long bolts and lock washers to bolt each clevis block to the tumbler section.
(Refer to View 1 on the previous page.)
2) Tumbler power cable reconnection:
a) A plug and cable is located in the right of the base. This must be lifted up and reconnected into
the mating socket located at the bottom of the right tumbler section.
b) Pull the tumbler section power cable up from the left side of the base through the hole in the
bottom of the tumbler section. Reconnect the wires of this cable into the 2-inch x 4-inch (5.08
cm x 10.16 cm) tumbler junction box located at the bottom of the tumbler section. (Refer to the
illustration on the previous page.)
c) Drop the control cable connector from the rear right side of the tumbler section into the base.
Reconnect the industrial grade plug in to its mating socket.
3) Bolt the 20-inch (50.8 cm) diameter exhaust duct transition piece to the dryers rectangular exhaust
duct. The exhaust duct exits the dryer from the rear of the base. (Refer to the illustration on the
previous page.) Use the 1/4-20 self-drilling screws supplied with the dryer.

12 113274-1
2. Reassembly Instructions For Steam Dryer Shipped In Two (2) Pieces

113274-1 13
a. Reassembly Instructions For Non-Tilt Steam Dryers:
Lift the tumbler section onto the base.
1) The dryer has four (4) support posts assemblies, which are located in each corner of the base. On
top of each post assembly is a clevis block, which must be bolted to the tumbler section. Use the
4-1/2” diameter x 1-1/8” long bolts and lock washers to bolt each clevis block to the tumbler section.
(Refer to View 1 on the previous page.)
2) Tumbler power cable reconnection:
a) A plug and cable is located in the right of the base. This must be lifted up and reconnected into
the mating socket located at the bottom of the right tumbler section.
b) Pull the tumbler section power cable up from the left side of the base through the hole in the
bottom of the tumbler section. Reconnect the wires of this cable into the 2-inch x 4-inch (5.08
cm x 10.16 cm) tumbler junction box located at the bottom of the tumbler section. (Refer to the
illustration on the previous page.)
c) Drop the control cable connector from the rear right side of the tumbler section into the base.
Reconnect the industrial grade plug in to its mating socket.
3) Bolt the 20-inch (50.8 cm) diameter exhaust duct transition piece to the dryers rectangular exhaust
duct. The exhaust duct exits the dryer from the rear of the base. (Refer to the illustration on the
previous page.) Use the 1/4-20 self-drilling screws supplied with the dryer.
4) If a steam dryer is shipped in two (2) pieces, the steam coil may have been removed from the top of
the tumbler section and shipped with the base. If this is the case, lift the steam coil on to the top of
the tumbler section with the steam pipe connections facing towards the right side of the dryer and
bolt the coil to the top of the dryer with a 1/4-inch hardware supplied. There are three (3) panels that
cover the front, right side, and rear of the steam coil. Fasten these in position also.

14 113274-1
B. LOCATION REQUIREMENTS
Before installing the dryer, be sure the location conforms to local codes and ordinances. In the absence of such
codes or ordinances the location must conform with the National Fuel Gas CodeANSI.Z223.1 LATEST EDITION,
or in Canada, the installation must conform to applicable Canadian Standards: CAN/CGA-B149.1-M91 (Natural
Gas) or CAN/CGA-B149.2-M91 (Liquid Propane Gas) or LATEST EDITION (for General Installation and Gas
Plumbing).
The non-tilting model dryer requires 18-inches (45.72 cm) of space on each side of the dryer and 24-inches
(60.96 cm) of space behind the unit for ease of service. A minimum of 12-inches (30.48 cm) must be allowed
between the top of a gas dryer and the ceiling. A ceiling height of 120-inches (304.8 cm) is required for gas
dryers, and a ceiling height for 130-inches (330.2 cm) is required for steam dryers. The dryer must be leveled
for proper operation. If shimming is required, put metal shims which are the same size as the base feet under the
base feet. The dryer must be lagged to the floor.
WARNING: Dryer should be located where a minimum length of exhaust duct will be necessary.
1. The dryer must be installed with a proper exhaust duct connection to the outside.
2. The dryer must be installed with provisions for adequate combustion and make-up air supply.
CAUTION: This dryer produces combustible lint and must be exhausted to the outdoors. Every 6
months, inspect the exhaust ducting and remove any lint build up.
IMPORTANT: Dryer must be installed in a location/environment, which the ambient temperature
remains between 40° F (4.44° C) and 130° F (54.44° C).

113274-1 15
C. FRESH AIR SUPPLYREQUIREMENTS
When the dryer is operating, it draws in room air, heats it, passes this air through the tumbler, and exhausts it out
of the building. Therefore, the room air must be continually replenished from the outdoors. If the make-up air
is inadequate, drying time and drying efficiency will be adversely affected. Ignition problems and sail switch
“fluttering” problems may result, as well as premature motor failure from overheating.
Air supply (make-up air) must be given careful consideration to assure proper performance of each dryer. An
unrestricted source of air is necessary for each dryer. An airflow of 5,300 cfm (cubic feet per minute) (150 cmm
[cubic meters per minute]) must be supplied to each gas dryer and 6,500 cfm (184 cmm) for each steam dryer.
As a general rule, an unrestricted air entrance from the outdoors (atmosphere) of a minimum of 6 square feet
(0.56 square meters) is required for each gas dryer and a minimum of 8 square feet (0.74 square meters) for each
steam dryer.
To compensate for the use of registers or louvers used over the openings, this make-up air area must be
increased by approximately thirty-three percent (33%). Make-up air openings should not be located in an area
directly near where exhaust vents exit the building.
It is not necessary to have a separate make-up air opening for each dryer. Common make-up air openings are
acceptable. However, they must be set up in such a manner that the make-up air is distributed equally to ALL
the dryers. The dryer must be installed with provisions for adequate combustion and make-up air supply.
Allowances must be made for remote or constricting passageways or where dryers are located at excessive
altitudes or predominantly low pressure areas.
IMPORTANT: Make-up air must be provided from a source free of dry cleaning solvent fumes.
Make-up air that is contaminated by dry cleaning solvent fumes will result in
irreparable damage to the motors and other dryer components.
NOTE: Component failure due to dry cleaning solvent fumes will VOID THE WARRANTY.

16 113274-1
D. EXHAUST REQUIREMENTS
NOTE: For 1 door dryers, the 20-inch (50.8 cm) diameter exhaust duct exits from the rear of the
base. For 2 door dryers, the 20-inch (50.8 cm) diameter exhaust duct exits from the left side
of the base.
1. General Exhaust Ductwork Information
Exhaust ductwork should be designed and installed by a qualified professional. Improperly sized ductwork
will create excessive back pressure which results in slow drying, increased use of energy, overheating of the
dryer, and shutdown of the burner by the airflow (sail) switches, burner hi-limits, or tumbler hi-limit thermostats.
The dryer must be installed with a proper exhaust duct connection to the outside.
CAUTION: This dryer produces combustible lint and must be exhausted to the outdoors.
CAUTION: IMPROPERLY SIZED OR INSTALLED EXHAUST DUCTWORK CAN
CREATEA POTENTIALFIRE HAZARD.
NOTE: THE DRYER MUST BE INDEPENDENTLY EXHAUSTED. COMMON
DUCTWORK IS NOT ACCEPTABLE.
The exhaust ductwork should be laid out in such a way that the ductwork travels as directly as possible to
the outdoors with as few turns as possible. Single or independent dryer venting is recommended.
The shape of the ductwork is not critical so long as the minimum cross section area is provided. It is
suggested that the use of 90° turns in ducting be avoided; use 30° and/or 45° angles instead. The radius of
the elbow should preferably be 1-1/2 times the diameter of the duct.
ALL ductwork should be smooth inside with no projections from sheet metal screws or other obstructions,
which will collect lint. When adding ducts, the ducts to be added should overlap the duct to which it is
connected. ALL ductwork joints must be taped to prevent moisture and lint from escaping into the building.
Additionally, inspection doors should be installed at strategic points in the exhaust ductwork for periodic
inspection and cleaning of lint from the ductwork.
IMPORTANT: It is recommended that exhaust booster fans not be used in the exhaust ductwork
system.