JLA D90 User manual

D90 Installation Manual
Phase 7 Gas (DSI / HSI) Non-Coin
PartNo.113374-4
WARNING:Foryoursafetytheinformationin
thismanualmustbefollowedtominimizetherisk
of fire or explosion or to prevent property
damage,personalinjuryordeath.
— Donot store oruse gasoline orother flammable
vapors and liquids in the vicinity of this or any
otherappliance.
— WHATTODO IFYOU SMELLGAS:
• Donottrytolightanyappliance.
• Donottouchany electrical switch; donot
useanyphoneinyourbuilding.
• Cleartheroom,buildingor area of all
occupants.
• Immediatelycall yourgassupplierfroma
neighbor’sphone. Follow the gas supplier’s
instructions.
• Ifyoucannotreachyourgassupplier,call
thefiredepartment.
— Installationand service mustbe performed bya
qualified installer, service agency or the gas
supplier.
AVERTISSEMENT: Assurez-vous de bien
suivrelesinstructionsdonnéesdanscettenotice
pourréduire au minimumle risque d’incendie
ou d’explosion ou pour éviter tout dommage
matériel,touteblessureoulamort.
— Ne pas entreposer ni utiliser d’essence ni
d’autres vapeurs ou liquides inflammables à
proximité de cet appareil ou de tout autre
appareil.
— QUEFAIRESIVOUSSENTEZUNEODEUR
DEGAZ:
• Nepastenter d’allumer d’appareils.
• Netouchez à aucuninterrupteur. Nepas
vousservirdes téléphones setrouvantdans
lebâtiment.
• Évacuezlapièce,lebâtimentoula zone.
• Appelezimmédiatementvotrefournisseur
degazdepuisunvoisin. Suivezles
instructionsdufournisseur.
• Sivousnepouvezrejoindrelefournisseur
degaz,appelez le servicedesincendies.
— L’installationetl’entretien doivent êtreassurés
paruninstallateurouunserviced’entretienqualifié
ouparlefournisseur de gaz.
JLALimited
Meadowcroft Lane, Halifax Road
Ripponden
WestYorkshire, England
HX64AJ
Telephone:[phone]/Fax:[phone]

We have tried to make this manual as complete as possible and hope you will find it useful. 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:
DATEOFPURCHASE____________________________________________________________ MODELNO. ______________
DISTRIBUTOR’SNAME ____________________________________________________________________________________
Serial Number(s) ________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
Replacement parts can be obtained from your distributor or JLA. When ordering replacement parts from JLA, you can FAX
your order to JLA at 01422 824390 or telephone your order directly to the JLA Parts Department at 01422 822282. Please
specify the dryer model number and serial number in addition to the description and part number, so that your order is
processed accurately and promptly.
D90
“IMPORTANTNOTETOPURCHASER”
Informationmustbeobtainedfromyourlocalgassupplierontheinstructions
tobefollowedif the usersmellsgas. Theseinstructions mustbepostedina
prominentlocationnearthedryer.
FORYOURSAFETY
Donot storeor use gasoline or
otherflammablevaporsand
liquidsinthevicinityofthisor
anyotherappliance.
POURVOTRESÉCURITÉ
Nepasentreposer ni utiliserd’essence
nid’autresvapeursouliquides
inflammablesàproximitédecet
appareilou de toutautreappareil.
Retain This Manual In ASafe 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.

IMPORTANT
YOUMUSTDISCONNECTANDLOCKOUTTHEELECTRICSUPPLYANDTHEGAS
SUPPLY BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE
MACHINETOALLOWACCESSFORCLEANING,ADJUSTING,INSTALLATION,OR
TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health
Administration)STANDARDS.
WARNING
CHILDRENSHOULDNOTBEALLOWEDTOPLAYONORNEARTHEDRYER(S).
CHILDRENSHOULDBESUPERVISEDIFNEARDRYERSINOPERATION.
CAUTION
DRYERSSHOULDNEVERBELEFTUNATTENDEDWHILEINOPERATION.
FORYOURSAFETY
DONOTDRYMOPHEADSINTHEDRYER.
DONOTUSEDRYERINTHEPRESENCEOFDRYCLEANINGFUMES.
WARNING
UNDERNO CIRCUMSTANCESshould thedryerdoorswitch,the lintdrawerswitch,
or the heat safety circuit ever be disabled.
“Caution: Label all wires prior to
disconnection when servicing controls. Wiring
errors can cause improper operation.”
«Attention:Au moment de l’entretien des
commandes,étiqueteztous les fils avantde
les débrancher. Des erreurs de câblage
peuvent entraîner un fonctionnement ina-
déquatetdangereux.»

WARNING
The dryer must never be operated with any of the back guards, outer tops, or service
panelsremoved. PERSONALINJURYORFIRECOULDRESULT.
IMPORTANT
PLEASEOBSERVEALLSAFETYPRECAUTIONSdisplayedontheequipmentand/or
specified in the installation manual included with the dryer.
WARNING
DRYERMUSTNEVERBEOPERATEDWITHOUTTHELINTFILTER/SCREENIN
PLACE,EVENIFANEXTERNALLINTCOLLECTIONSYSTEMISUSED.
Dryers mustnotbeinstalled or stored in an area where it willbe exposedto water or weather.
The wiring diagram for the dryer is located in the front electrical control box area.
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).

SECTION I
SAFETY PRECAUTIONS ..............................................................................................................................2
SECTION II
SPECIFICATIONS/COMPONENT IDENTIFICATION .........................................................................4
A. Specifications.......................................................................................................................................... 4
B. ComponentIdentification........................................................................................................................ 6
SECTION III
INSTALLATION PROCEDURES ................................................................................................................8
A. Location Requirements........................................................................................................................... 8
B. Unpacking/Setting Up............................................................................................................................. 9
C. Dryer Enclosure Requirements ............................................................................................................ 10
D. FreshAir Supply Requirements ............................................................................................................ 10
E. Exhaust Requirements.......................................................................................................................... 11
F. Electrical Information ........................................................................................................................... 15
G. Gas Information .................................................................................................................................... 17
H. Water Information ................................................................................................................................ 20
I. Preparation for Operation/Start-Up...................................................................................................... 23
J. Preoperational Tests ............................................................................................................................. 23
K. Compressed Air Requirements............................................................................................................. 25
L. Shutdown Instructions .......................................................................................................................... 26
SECTION IV
SERVICE/PARTS INFORMATION ...........................................................................................................27
A. Service .................................................................................................................................................. 27
B. Parts...................................................................................................................................................... 27
SECTION V
WARRANTY INFORMATION ...................................................................................................................28
A. Returning Warranty Cards ................................................................................................................... 28
B. Warranty ............................................................................................................................................... 28
SECTION VI
ROUTINE MAINTENANCE ......................................................................................................................29
A. Cleaning ................................................................................................................................................ 29
B. Adjustments .......................................................................................................................................... 30
C. Lubrication ............................................................................................................................................ 30
SECTION VII
DATA LABEL INFORMATION .................................................................................................................31
SECTION VIII
PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS ...................32
SECTION IX
PHASE 7 NON-COIN SYSTEM DIAGNOSTICS....................................................................................33
A. Diagnostic (L.E.D. Display) Fault Messages ...................................................................................... 33
Table of Contents

2 JLA Limited 113374-4
SECTIONI
SAFETYPRECAUTIONS
WARNING: Foryoursafety,theinformationinthismanualmustbe followedtominimizetheriskoffireor
explosionortoprevent property damage,personalinjury,orloss of life.
WARNING: The dryer mustneverbe operated with any oftheback guards, outer tops, orservice
panelsremoved.PERSONALINJURYORFIRE COULDRESULT.
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 ALLoccupants.
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 JLA 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 waterwashed fabrics. DO NOTdry articlesspotted or washedin drycleaning
solvents,acombustible detergent,or“all purpose” cleaner. EXPLOSIONCOULDRESULT.
WARNING: DONOT dryrags orarticles coated orcontaminated with gasoline,kerosene, oil,paint, or wax.
EXPLOSIONCOULDRESULT.
WARNING: DONOTdrymopheads. Contamination by waxorflammablesolvents will createafire
hazard.
WARNING: DONOTuseheatfordryingarticles that contain plastic,foam,spongerubber,or similarly
texturedrubberlikematerials. Dryinginaheatedbasket (tumbler) may damage plasticsor
rubberand may bea firehazard.

113374-4 Telephone [phone]
7. A program should be established for the inspection and cleaning of lint in the burner area, exhaust ductwork, and
area around the back of the dryer. The frequency of inspection and cleaning can best be determined from experience
at each location.
WARNING: Thecollectionoflintin the burnerareaandexhaustductwork can create apotentialfire 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: FailuretoelectricallygroundthedryerproperlywillVOIDTHEWARRANTY.
9. UNDER NO CIRCUMSTANCES should the dryer door switch, the lint drawer switch, or the heat safety circuit
ever be disabled.
WARNING: PERSONALINJURY OR FIRE COULD RESULT SHOULD THE DRYER DOOR
SWITCH, THE LINT DRAWER SWITCH, OR THE HEAT SAFETY CIRCUIT EVER
BE DISABLED.
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: Articlesleftinthedryerafter the dryingandcoolingcycleshavebeen completed can createafire
hazard.
12. READ AND FOLLOW ALL CAUTION AND DIRECTION LABELS ATTACHED TO THE DRYER.
13. For safety, proper operation, and optimum performance, the dryer must not be operated with a load less than sixty-
six percent (66%), 63 pounds (28.57 kg) of its rated capacity.
WARNING: YOUMUSTDISCONNECTANDLOCKOUTTHEELECTRICSUPPLYANDTHE
GASSUPPLYBEFOREANYCOVERSOR GUARDSAREREMOVEDFROMTHE
MACHINETOALLOWACCESSFOR CLEANING,ADJUSTING,INSTALLATION,
ORTESTINGOFANYEQUIPMENTPEROSHA(OccupationalSafetyand Health
Administration)STANDARDS.
IMPORTANT: Dryermustbeinstalled ina location/environment,whichtheambienttemperature
remainsbetween 40º F(4.44ºC) and 130ºF (54.44º C).

4 JLA Limited 113374-4
SECTIONII
SPECIFICATIONS/COMPONENTIDENTIFICATION
A. SPECIFICATIONS
MAXIMUM CAPACITY (DRY WEIGHT) 95 lb 43.1 kg
TUMBLER DIAMETER 41-3/8” 105.1 cm
TUMBLER DEPTH 28-7/8” 73.3 cm
TUMBLERVOLUME 22.5 cu ft 637.12 L
TUMBLER/DRIVE MOTOR 1/2 hp 0.373 kW
BLOWER/FAN MOTOR 3 hp 2.238 kW
DOOR OPENING (DIAMETER) 31-3/8” 79.7 cm
DOOR SILL HEIGHT N / A
WATER CONNECTION*3/4”-11.5 NH
(North America)
3/4” B.S.P.T. (Outside North America)
DRYERS PER 20’/40’ CONTAINER 10 / 20
DRYERS PER 48’/53’ TRUCK 24 / 26
VOLTAGE AVAILABLE 208-460V 3ø 3,4w 50/60 Hz
APPROXIMATE NET WEIGHT 1,087 lb 493.1 kg
APPROXIMATE SHIPPING WEIGHT 1,157 lb 524.8 kg
AIRFLOW 60 Hz 2,700 cfm 76.5 cmm
50 Hz 2,268 cfm 64.2 cmm
HEATINPUT 350,000 Btu/hr 88,200 kcal/hr
EXHAUST CONNECTION (DIAMETER) 16” 40.6 cm
COMPRESSED AIR CONNECTION 1/4” Quick Connection
COMPRESSED AIR VOLUME 3.25 cfh 0.09 cmh
INLET PIPE CONNECTION 1” F.B.S.P.T.
1” B.S.P.T.
(CE and Australia Only)
VOLTAGE AVAILABLE
N / A
APPROXIMATE NET WEIGHT
APPROXIMATE SHIPPING WEIGHT
AIRFLOW
EXHAUST CONNECTION (DIAMETER)
COMPRESSED AIR CONNECTION
COMPRESSED AIR VOLUME
OVEN SIZE
kW Btu/hr kcal/hr
VOLTAGE AVAILABLE
N / A
APPROXIMATE NET WEIGHT
APPROXIMATE SHIPPING WEIGHT
AIRFLOW
STEAM CONSUMPTION
OPERATING STEAM PRESSURE
EXHAUST CONNECTION (DIAMETER)
COMPRESSED AIR CONNECTION
COMPRESSED AIR VOLUME
BOILER HORSEPOWER (NORMAL LOAD)
SUPPLYCONNECTION
RETURN CONNECTION
Shaded areas are stated in metric equivalents 5/5/04
* The fire suppression system must be supplied with water at a pressure of 40 psi +/- 20 psi (2.75 bar +/- 1.37 bar).
** The dryers must be provided with a clean dry regulated 80 psi +/- 10 psi (5.51 bar +/- 0.69 bar) air supply.
NOTE: JLAreserves the right to make changes in specifications at any time without notice or obligation.
Gas**ElectricSteam

113374-4 Telephone [phone]
NOTE: JLAreserves the right to make changes in specifications at any time without notice or obligation.
SPECIFICATIONS

6 JLA Limited 113374-4
B. COMPONENT IDENTIFICATION
1. Dryer Front View
Illus. No. Description
1 Microprocessor Control/Keyboard (touch pad) PanelAssembly (controls)
2 Control (top access) Door Assembly
3 Main DoorAssembly
4 Lint PanelAssembly
5 Lint Door
6 Wire Diagram (located behind control door)
7 Top Console (module)Assembly

113374-4 Telephone [phone]
2. Dryer Rear View
Illus. No. Description
1 Electrical Service Connections
2 Top Console
3 Heating Unit
4 Relay/Wiring Box
5 Data Label and Installation Label
6 AirConnection
7 Exhaust Transition Piece

8 JLA Limited 113374-4
SECTIONIII
INSTALLATIONPROCEDURES
Installation should be performed by competent technicians in accordance with local and state codes. In the absence of
these codes, the installation mustconform 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 [L.P.] 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. 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 (L.P. Gas) or LATEST EDITION (for General Installation and Gas Plumbing).
1. The dryer must be installed on a sound level floor capable of supporting its weight. Carpeting must be removed
from the floor area that the dryer is to rest on.
IMPORTANT: “The dryer mustbeinstalledonnoncombustiblefloorsonly.”
2. The dryer must not be installed or stored in an area where it will be exposed to water and/or weather.
3. The dryer is for use in noncombustible locations.
4. Provisions for adequateairsupply must beprovided as noted in this manual (refer to FreshAirSupplyRequirements
in Section D).
5. Clearance provisions mustbemadefrom combustible construction as noted in this manual (refer to DryerEnclosure
Requirements in Section C).
6. Provisions must be made for adequate clearances for servicing and for operation as noted in this manual (refer to
Dryer Enclosure Requirements in Section C).
7. The dryer must be installed with a proper exhaust duct connection to the outside as noted in this manual (refer to
Exhaust Requirements in Section E).
8. Dryer must be located in an area where correct exhaust venting can be achieved as noted in this manual (refer to
Exhaust Requirements in Section E).
IMPORTANT: Dryer shouldbelocatedwhere a minimumamountof exhaust ductwill be necessary.
9. The dryer must be installed with adequate clearance for air openings into the combustion chamber.
CAUTION: Thisdryer produces combustiblelintand mustbeexhausted totheoutdoors. Every 6 months,
inspecttheexhaustducting and remove anylintbuildup.
IMPORTANT: Dryermustbeinstalled ina location/environment,whichtheambienttemperature
remainsbetween 40º F(4.44ºC) and 130ºF (54.44º C).

113374-4 Telephone [phone]
B. UNPACKING/SETTING UP
Remove protective shipping material (i.e., plastic wrap and/or optional shipping box) from dryer.
IMPORTANT: The dryermustbetransportedand handled inanuprightposition at ALLtimes.
The dryer can be moved to its final location while still attached to the skid
or with the skid removed. To unskid the dryer, locate and remove the four
(4) lag bolts securing the base of the dryer to the wooden skid. Two (2) are
at the rear base, and two (2) are located in the bottom of the lint chamber.
To remove the two (2) lag bolts located in the lint chamber area, remove
the front panel.
1. Leveling Dryer
To level the dryer, place 4-inch (10.16 cm) square metal shims or
other suitable material under the base pads. It is suggested that the
dryer be tilted slightly to the rear (refer to the illustration on right).
2. If more headroom is needed when moving the dryer into position, the
top console (module) may be removed.
To Remove Top Console (module)...
a. Disconnect the ground wire (A in the illustration below) located
at the rear upper left corner of the dryer.
b. Remove the six (6) sets of nuts and washers (B in the illustration
below) holding the console (module) to the base.
c. Disconnect the white plug connector (C in the illustration on
right) located on the top of the rear electric service/relay box
(provides power to the heat circuit).
d. Disconnect air connection from the 3-way micro valve.
e. Lift the console (module) off of the dryer base.
IMPORTANT: The dryermustbetransported and handledinanuprightposition at ALLtimes.

10 JLA Limited 113374-4
C. DRYER ENCLOSURE REQUIREMENTS
Even though a 12-inch (30.48 cm) clearance is acceptable, it is recommended that the rear of the dryer be positioned
approximately 24-inches (60.96 cm) from the nearest obstruction (i.e., wall) for ease of installation, maintenance, and
service. Bulkheads and partitions should be made from noncombustible materials. The clearance between the bulkhead
header and the dryer must be a minimum of 4-inches (10.16 cm) and must not extend more than 4-inches (10.16 cm) to
the rear of the front. A 2-inch (5.08 cm) clearance is required between the bulkhead facing and the top of the dryer.
NOTE: Bulkheadfacing shouldnotbeinstalled untilafterthe dryer isinplace. Ceiling areamust belocated
aminimumof12-inches (30.48 cm)abovethedryer top console(module).
NOTE: Whenfiresprinkler systems arelocatedabovethe dryers, aminimumof18-inches (45.72 cm)above
thedryerconsole (module) isrequired. Dryersmaybe positioned sidewalltosidewall,however, 1or
2-inches(2.54or 5.08cm)is suggested foreaseof installation andmaintenance. Allowancesmustbe
madeforthe opening andclosingofthe controldoorandthe lint door.
D. FRESH AIR SUPPLYREQUIREMENTS
When the dryer is operating, it draws in room air, heats it, passes this air through the basket (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. The dryer must be installed with provisions
for adequate combustion and make-up air supply.
Air supply (make-up air) mustbegiven careful consideration to ensure proper performance of each dryer. An unrestricted
source of air is necessary for each dryer. As a general rule, an unrestricted air entrance from the outdoors (atmosphere)
of a minimum of 350 square inches (2258.1 square cm) is required for each gas dryer (based on 1 square inch per 1000
Btus).

113374-4 Telephone [phone]
To compensate for the use of registers or louvers used over
the openings, this make-up air must be increased by
approximately thirty-three percent (33%). Make-up air
openings shouldnotbelocated in an area directly near where
exhaust vents exit the building.
It is not necessary to have a separate make-up air opening
foreach dryer. Common make-up air openingsareacceptable.
However, they must be set up in such a manner that the
make-up air is distributed equally to ALL the dryers.
EXAMPLE: For a bank of four (4) dryers, two (2) unrestricted
openings measuring 26-inches by 26.9-inches (66.1 cm by
68.4 cm) each are acceptable.
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 mustbeprovidedfrom a sourcefree of drycleaning solventfumes. Make-up
airthatiscontaminatedby dry cleaningsolventfumeswillresultinirreparabledamagetothe
motorsandother dryer components.
NOTE: Componentfailureduetodry cleaning solvent fumeswillVOIDTHEWARRANTY.
E. EXHAUST REQUIREMENTS
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 basket (tumbler) hi-heat thermostats. The
dryer must be installed with a proper exhaust duct connection to the outside.
CAUTION: Thisdryerproduces combustiblelintand must beexhaustedto the outdoors.
CAUTION: IMPROPERLY SIZEDORINSTALLEDEXHAUST DUCTWORKCANCREATEA
POTENTIALFIREHAZARD.
NOTE: Whendryersareexhausted into a multiple(common)exhaustline,each dryer mustbesuppliedwitha
backdraft damper.
The 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.
A = 26-Inches (66.1 cm) B = 26.9-Inches (68.4 cm)

12 JLA Limited 113374-4
When single dryer venting is used, the ductwork from the dryer to the outside exhaust outlet should not exceed 20
feet (6.09 meters). In the case of multiple (common) dryer venting, the distance from the last dryer to the outside
exhaust outlet should not exceed 20 feet (6.09 meters). The shape of the ductwork is not critical as long as the
minimum cross-sectional area is provided. It is suggested that the use of 90º turns be avoided; use 30º and/or 45º
bends/anglesinstead. Theradiusof the elbowsshouldpreferably be 1-1/2 times the diameter of the duct. Excluding
basket (tumbler)/dryer elbow connections or elbows used for outside protection from the weather, no more than two
(2) elbows should be used in the exhaust duct run. If more than two (2) elbows are used, the cross-sectional area
of the ductwork must be increased in proportion to the number of elbows used.
ALL ductwork should be smooth inside with no projections from sheet metal screws or other obstructions, which
will collect lint. When adding ducts, the duct to be added should overlap the duct to which it is to be connected. ALL
ductwork joints mustbe taped to prevent moisture and lint from escaping into the building. Inspection doors should
beinstalled at strategic points in the exhaust ductwork for periodic inspection and cleaning of lint from the ductwork.
IMPORTANT: Exhaust back pressure measured bya manometer in theexhaust duct mustbenoless than 0
and mustnot exceed 0.3 inches (0.74 mb) of water column (W.C.).
NOTE: Whentheexhaustductworkpassesthrougha wall, ceiling, or roofmadeofcombustiblematerials,the
openingmustbe2-inches (5.08cm) largerthan theduct (all the way around). Theduct mustbe
centeredwithinthisopening.
Outside Ductwork Protection
To protect the outside end of the horizontal ductwork from the weather, a 90° elbow bent downward should be
installed where the exhaust exits the building. If the ductwork travels vertically up through the roof, it should be
protected from the weather by using a 180° turn to point the opening downward. In either case, allow at least twice
the diameter of the duct between the duct opening and the nearest obstruction.
IMPORTANT: DO NOTuse screens,louvers, orcaps onthe outside opening of theexhaust ductwork.
2. Single DryerVenting
Where possible, it is suggested to provide a separate exhaust duct for each dryer. The exhaust duct 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. It
is suggested that the use of 90° turns in the ducting be avoided; use 30° and/or 45° angles instead. The shape of the
exhaust ductwork is not critical as long as the minimum cross section area is provided.
IMPORTANT: The minimumductsizefora gas unitis16-inches(40.64 cm) foraroundduct and
14-1/4” x 14-1/4” (36.2 cm x 36.2 cm) for a square duct. THEDUCT SIZE MUSTNOT
BEREDUCEDANYWHEREDOWNSTREAMOFTHEDRYER.

113374-4 Telephone [phone]
IMPORTANT: Exhaust backpressuremeasured byamanometer ateachbasket (tumbler) exhaustduct area
mustbe no less than 0 and mustnotexceed 0.3 inches (0.74 mb) of water column (W.C.).
It is suggested that the ductwork from each dryer not exceed 20 feet (6.09 meters) with no more than two (2)
elbows (excluding dryer connections). If the ductwork exceeds 20 feet (6.09 meters) or has numerous elbows, the
cross-sectional area of the ductwork must be increased in proportion to the length and number of elbows in it. In
calculating duct size, the cross-sectional area of a square or rectangular duct must be increased twenty percent
(20%) for each additional 20 feet (6.09 meters). The diameter of a round exhaust duct should be increased ten
percent (10%) for each additional 15 feet (4.57 meters). Each 90º elbow is equivalent to an additional 40 feet (12.19
meters), and each 45º elbow is equivalent to an additional 20 feet (6.09 meters).
IMPORTANT: For extendedductwork runs,the crosssection area of the ductworkcan onlybe increasedto
anextent. Maximumproportional ductworkrunscannotexceed20feet (6.09 meters)more
thantheoriginallimitations of 20feet(6.09meters)with two (2)elbows. Whentheductwork
approachesthemaximumlimitsasnotedinthismanual,aprofessionalheating,ventilating,and
air-conditioning(HVAC)firm shouldbeconsulted forproperventinginformation.
ALL ductwork should be smooth inside with no projections from sheet metal screws or other obstructions, which
will collect lint. When adding ducts, the duct to be added should overlap the duct to which it is to be connected. ALL
ductwork joints mustbe taped to prevent moisture and lint from escaping into the building. Inspection doors should
beinstalled at strategic points in the exhaust ductwork for periodic inspection and cleaning of lint from the ductwork.
NOTE: Whentheexhaustductworkpassesthrougha wall, ceiling, or roofmadeofcombustiblematerials,the
openingmustbe2-inches (5.08cm) largerthan theduct (all the way around). Theduct mustbe
centeredwithinthisopening.

14 JLA Limited 113374-4
3. Multiple Dryer (Common) Venting
If it is not feasible to provide separate exhaust ducts for each dryer, ducts from individual dryers may be channeled
into a “common main duct.” The individual ducts should enter the bottom or side of the main duct at an angle not
more than 45° in the direction of the flow and should be spaced at least 46-inches (116.84 cm) apart. The main
duct should be tapered, with the diameter increasing before each individual 16-inch (40.54 cm) duct is added.
IMPORTANT: When exhausted intoamultiple(common)exhaustline,aback draft damper mustbeinstalled
ateach dryerduct.
IMPORTANT: No more than three (3) dryers should be connectedto one (1) main common duct.
The main duct may be any shape or cross-sectional area, as long as the minimum cross section area is provided. The
illustrationabove shows the minimum cross section area for multiple dryer round or square venting. These figures
must be increased 10 square inches (64.52 square centimeters) when rectangular main ducting is used, and the
ratio of duct width to depth should not be greater than 3-1/2 to 1. These figures must be increased in proportion
if the main duct run to the last dryer to where it exhausts to the outdoors is unusually long (over 20 feet [6.09
meters]) or has numerous elbows (more than two [2]) in it. In calculating ductwork size, the cross-sectional area of
a square or rectangular duct must be increased twenty percent (20%) for each additional 20 feet (6.09 meters).
The diameter of a round exhaust must be increased ten percent (10%) for each additional 20 feet (6.09 meters).
Each 90° elbow is equivalent to an additional 40 feet (12.19 meters) and each 45° elbow is equivalent to an additional
20 feet (6.09 meters).

113374-4 Telephone [phone]
IMPORTANT: For extendedductwork runs,the crosssection area of the ductworkcan onlybe increasedto
anextent. Maximumproportional ductworkrunscannotexceed20feet (6.09 meters)more
thantheoriginallimitations of 20feet(6.09meters)with two (2)elbows. Whentheductwork
approachesthemaximumlimitsasnotedinthismanual,aprofessionalheating,ventilating,and
air-conditioning(HVAC)firm shouldbeconsulted forproperventinginformation.
IMPORTANT: Exhaust back pressure measured bya manometer in theexhaust duct mustbenoless than 0
and mustnot exceed 0.3 inches (0.74 mb) of water column (W.C.).
The ductwork should be smooth inside with no projections from sheet metal screws or other obstructions, which
will collect lint. When adding ducts, the duct to be added should overlap the duct to which it is to be connected. ALL
ductwork joints mustbe taped to prevent moisture and lint from escaping into the building. Inspection doors should
beinstalled at strategic points in the exhaust ductwork for periodic inspection and cleaning of lint from the ductwork.
NOTE: Whentheexhaustductworkpassesthrougha wall, ceiling, or roofmadeofcombustiblematerials,the
openingmustbe2-inches (5.08cm) largerthan theduct (all the way around). Theduct mustbe
centeredwithinthisduct.
F. ELECTRICAL INFORMATION
1. Electrical Requirements
It is your responsibility to have ALL electrical connections made by a properly licensed and competent electrician
to ensure that the electrical installation is adequate and conforms to local and state regulations or codes. In the
absence of such codes, ALL electrical connections, material, and workmanship must conform to the applicable
requirements of the National Electrical CodeANSI/NFPANO. 70-LATEST EDITION or in Canada, the Canadian
Installation Codes CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L.P.] Gas)
or LATEST EDITION.
IMPORTANT: Failure to complywiththesecodesorordinances,and/ortherequirements stipulated in this
manualcanresultinpersonalinjuryorcomponentfailure.
NOTE: Componentfailuredueto improperinstallationwillVOIDTHEWARRANTY.
Each dryer should be connected to an independently protected branch circuit. The dryer must be connected with
copper wire only. DO NOT use aluminum wire, which could cause afire hazard. The copper conductor wire/
cable must be of proper ampacity and insulation in accordance with electric codes for making ALL service
connections.
NOTE: TheuseofaluminumwirewillVOIDTHEWARRANTY.
NOTE: Wiringdiagramsare affixedtotheinside at thetop front controldoorand the rearupper back guard/
panel.

16 JLA Limited 113374-4
2. Electrical Service Specifications
* Built 4-wire only. Customer must contact the factory to special order 3-wire systems. 10/2/07
IMPORTANT: The dryermust beconnected tothe electricsupply shown on the data label. In the case of
208VACor240VAC,thesupplyvoltage must matchtheelectric service specificationsofthe
datalabelexactly.
WARNING: 208VAC and240VACARENOTTHE SAME. Any damage done to dryercomponents
duetoimpropervoltageconnectionswill automaticallyVOIDTHEWARRANTY.
NOTE: JLAreserves the right to make changes in specifications at any time without notice or obligation.
3. Electrical Connections
NOTE: Awirediagram is includedwitheach dryer andisaffixed to thebackside of thetopcontrol (access)
door.
The only electrical input connections to the dryer are the 3-phase
(3ø) power leads (L1, L2, and L3), GROUND, and in the case of 4
wire service, the NEUTRAL. These electrical connections are made
at the terminal block located in the service/relay box at the rear, upper
left hand corner of the dryer. To gain access into this service box,
the service cover must be removed.
The “LINE POWER” and the “GROUND” connections to the dryer
must be made through the knockout hole at the top of the electric
service/relay box. Astrain relief must be used where the line power
ground wires go into the electric service/relay box.
ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER)
IMPORTANT:
NOTES: A.
B.
C.
208 VAC AND 230/240 VAC ARE NOTTHE SAME. When ordering,
specify exact voltage.
When fuses are used they must be dual element, time delay, current
limiting, class RK1 or RK5 ONLY. Calculate/determine correct fuse
value, by applying either local and/or National Electrical Codes to listed
appliance amp draw data.
Circuit breakers are thermal-magnetic (industrial) motor curve type
ONLY. For others, calculate/verify correct breaker size according to
appliance amp draw rating and type of breaker used.
Circuit breakers for 3-phase (3ø) dryers must be 3-pole type.
SERVICE
VOLTAGE PHASE WIRE SERVICE
APPROX.
AMP DRAW CIRCUIT
BREAKER
60 Hz 50 Hz
208 3ø 3 11.2 — 20
240 3ø 3 9.4 — 15
230 3ø 3 — 8.0 15
380 3ø
4*—5.1 15
400 3ø
4*—4.8 15
416 3ø
4*—4.6 15
460 3ø 3 5.5 — 15
480 3ø 3 5.5 — 15