JLA D40 User manual

D40 Installation Manual
Phase 7 / Fire Suppression System
JLA Limited
Meadowcroft Lane, Halifax Road
Ripponden
West Yorkshire, England
HX6 4AJ
Telephone: [phone] / Fax: [phone]
WARNING: Foryoursafetytheinformation
in this manual must be followed to
minimize the risk of fire or explosion or 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.
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.
JLA Part No. 113242

“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 inflam-
mables à proximité de cet
appareil ou de tout autre appareil.
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) ________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
Replacement parts can be obtained from your reseller orJLA. When ordering replacement parts fromJLA, you can FAX
your order to JLA at 01422 824390 or telephone your order directly to the JLA Parts Department at01422 822282. Please
specify the dryer model number and serial number in addition to thedescription and part number, so that your order
is processed accurately and promptly.
D40
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.

IMPORTANT
You must disconnect and lock out the electric
supply and the gas supply or the steam supply
before any covers or guards are removed from
the machine to allow access for cleaning,
adjusting, installation, or testing of any equipment
per OSHA (Occupational Safety and Health
Administration) standards.
Please observe all safety precautions displayed
on the equipment and/or specified in the
installation manual included with the dryer.
CAUTION
Dryer(s) should never be left unattended while in
operation.
“Caution: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper operation.”
«Attention: Lor des opérations d’entretien des
commandes étiqueter tous filsnt de les
déconnecter. Toute erreur de câblage peut étre
une source de danger et de panne.»
WARNING
Children should not be allowed to play on or near
the dryer(s). Children should be supervised if near
dryer(s) in Operation.
Under no circumstances should the dryer door
switch, lint drawer switch, or heat safety circuit
ever be disabled.
The dryer must never be operated with any of the
back guards, outer tops, or service panels
removed. Personal injury or fire could result.
The dryer must never be operated without the lint
filter/screen in place, even if an external lint
collection system is used.
FOR YOUR SAFETY
Do not dry mop heads in the dryer. Do not use
dryer in the presence of dry cleaning fumes.
Dryers must not be installed or stored in an
area where it will be exposed to water and/or
weather.
The wiring diagram for the dryer is located in
the front electrical control box area.
Table of Contents
Safety Precautions ................................4
Specifications ........................................5
Installation Procedures ......................... 7
Unpacking/Setting Up ................................................. 7
Location Requirements ............................................... 7
Dryer Enclosure Requirements.................................... 7
Fresh Air Supply Requirements................................... 8
Exhaust Requirements................................................ 8
Electrical Information ................................................ 11
Gas Information ........................................................ 14
Steam Information ..................................................... 16
Water Information ..................................................... 19
Preparation for Operation/Start-Up ............................. 21
Preoperational Tests ................................................. 22
Preoperational Instructions........................................ 22
Shutdown Instructions............................................... 23
Service/Parts Information ..................24
Service ..................................................................... 24
Parts ........................................................................ 24
Warranty Information ..........................24
Returning Warranty Cards......................................... 24
Warranty .................................................................. 24
Routine Maintenance...........................24
Cleaning ................................................................... 24
Adjustments ............................................................. 25
Lubrication ............................................................... 25
Lint Drawer Removal ................................................. 25
Data Label Information .......................25
Procedure for Functional Check
of Replacement Components .............26
Manual Reset Burner Hi-Limit
Instructions ..........................................27
Phase 7 .................................................................... 27
Dual Timer ................................................................ 27

4113242-3
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.
The dryer must never be operated with any of the back
guards, outer tops, or service panels removed. Personal
injury or fire could result.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Purchaser and 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.
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 gas supplier.
Dryers must be exhausted to the outdoors.
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.
Do not dry rags or articles coated or contaminated with
gasoline, kerosene, oil, paint, or wax. Explosion could
result.
Do not dry mop heads. Contamination by wax or
flammable solvents will create a fire hazard.
Do not use heat for drying articles that contain plastic,
foam, sponge rubber, or similarly textured rubber
materials. Drying in a heated basket (tumbler) may
damage plastics or rubber and also may be a fire hazard.
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.
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Warning
The collection of lint in the burner area and
exhaust ductwork can create a potential fire
hazard.
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 electrically ground the dryer properly
will void the warranty.
Under no circumstances should the dryer door switch, lint
drawer switch, or heat safety circuit ever be disabled.
Warning
Personal injury or fire could result should the
dryer door switch, lint drawer switch, or heat
safety circuit ever be disabled.
This dryer is not to be used in the presence of dry cleaning
solvents or fumes.
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.
Read and follow all caution and direction labels attached to
the dryer.
For safety, proper operation, and optimum performance, the
dryer must not be operated with a load less than sixty-six
percent (66%) 19 lbs (8.61 kg) of its rated capacity.
Warning
You must disconnect and lock out the electric
supply and the gas supply or the steam supply
before any covers or guards are removed from the
machine to allow access for cleaning, adjusting,
installation, or testing of any equipment per OSHA
(Occupational Safety and Health Administration) standards.
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113242-3 5
Specifications _______________________
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Shaded areas are stated in metric equivalents 2/19/04
*Reversing dryer available with 3-phase (3ø) 1/2 hp (0.373 kW) motors standard.
** Specify air-operated or electromechanical steam damper system. Air-operated steam damper system must be provided with clean, dry and
regulated 80 psi ± 10 psi (5.51 bar ± 0.68 bar) air supply.
Note
The manufacturer reserves the right to make changes in specifications at any time without notice or obligation.
GasElectricSteam**
MAXIMUM CAPACITY (DRY WEIGHT) 30 lbs 13.6 kg
TUMBLER DIAMETER 32-3/4” 83.2 cm
TUMBLER DEPTH 25-5/8” 65.1 cm
TUMBLER VOLUME 12.5 cu ft 0.354 cu m
TUMBLER/DRIVE MOTOR* 1/2 hp 0.373 kW
DOOR OPENING (DIAMETER) 21-1/2” 54.61 cm
AIRFLOW 60 HZ 460 cfm 13 cmm
AIRFLOW 50 HZ 382 cfm 11 cmm
EXHAUST CONNECTION (DIAMETER) 8” 20.32 cm
WATER CONNECTION 3/4” M.N.P.T.
DRYERS PER 20’/40’ CONTAINER 12/24
DRYERS PER 48’/53’ TRUCK 30/32
VOLTAGE AVAILABLE 120-480v 1, 3 ø 2, 3, 4 w 50/60 Hz
APPROX. NET WEIGHT 517 lbs 234.5 kg
APPROX. SHIPPING WEIGHT 552 lbs 250.38 kg
HEAT INPUT 95,000 Btu/hr kcal/hr
INLET PIPE CONNECTION 1/2” F.B.S.P.T.
VOLTAGE AVAILABLE 208-460v 1, 3 ø 2, 3, 4 w 50/60 Hz
OVEN SIZE
kW Btu/hr kcal/hr
20 68,200 17,200
22 75,000 18,900
24 81,900 20,600
25.2 85,900 21,700
VOLTAGE AVAILABLE 120-480v 1, 3 ø 2, 3, 4 w 50/60 Hz
APPROX. NET WEIGHT 577 lbs 261.72 kg
APPROX. SHIPPING WEIGHT 612 lbs 277.59 kg
STEAM CONSUMPTION 104 lbs/hr 47.17 kg/hr
OPERATING STEAM PRESSURE 125 psi max 8.6 bar
COMPRESSED AIR CONNECTION 1/8” F.N.P.T.
COMPRESSED AIR VOLUME 0.5 cfh 0.014 cmh
BOILER HP (NORMAL LOAD) 3
SUPPLY CONNECTION 1” F.N.P.T.
RETURN CONNECTION 1” F.N.P.T.

6113242-3
Specifications _______________________

113242-3 7
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 applicable
American 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).
Unpacking/Setting Up _______________
Remove protective shipping material (i.e., plastic wrap and
optional shipping box) from dryer.
Important
Dryer must be transported and handled in an
upright position at all times.
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) bolts securing the base of the
dryer to the wooden skid. Two (2) are at the rear base (remove
the back panel for access), and two (2) are located in the
bottom of the lint chamber. To remove the two (2) bolts located
in the lint chamber area, remove the lint drawer.
With the skid removed, to make it easier to slide the dryer into
its final position, slightly lower all four (4) leveling legs, so
that the dryer will slide on the legs instead of the base frame.
Leveling Dryer
The dryer is equipped with four (4) leveling legs, one (1) at
each corner of the base. Two (2) are located at the rear of the
dryer base, and two (2) are located in the lint chamber (coop).
To increase bearing life and improve efficiency, the dryer
should be tilted slightly to the rear.
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 Code ANSI.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 [L.P.] Gas) or LATEST
EDITION (for General Installation and Gas Plumbing).
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 must be installed on noncombustible
floors only.”
The dryer must not be installed or stored in an area where it
will be exposed to water and/or weather.
The dryer is for use in noncombustible locations.
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Provisions for adequate air supply must be provided as noted
in this manual (refer to Fresh Air Supply Requirements).
Clearance provisions must be made from combustible
construction as noted in this manual (refer to Dryer
Enclosure Requirements).
Provisions must be made for adequate clearances for
servicing and for operation as noted in this manual (refer to
Dryer Enclosure Requirements).
The dryer must be installed with a proper exhaust duct
connection to the outside. as noted in this manual (refer to
Exhaust Requirements).
The dryer must be located in an area where correct exhaust
venting can be achieved as noted in this manual (refer to
Exhaust Requirements).
Important
Dryer should be located where a minimum
amount of exhaust duct will be necessary.
The dryer must be installed with adequate clearance for air
openings into the combustion chamber.
Caution
This dryer produces combustible lint and must
be exhausted to the outdoors. Every 6 months,
inspect the exhaust ducting and remove any lint buildup.
Dryer Enclosure Requirements ______
Bulkheads and partitions should be made of noncombustible
material.
Note
Allowances must be made for opening the control
door
A30-inches (76.2 cm) for optimum opening of load door.
BThe maximum thickness of the bulkhead is 4-inches (10.16 cm).
For electric dryers the maximum thickness of the bulkhead is 1-inch
(2.54 cm) within 3-inches (7.62 cm) from the top of the control door.
CFor gas and electric dryers a minimum overhead clearance of 12-
inches (30.48 cm) is required, providing no sprinkler is located
above the dryer. For steam dryers or if a sprinkler is located above
the dryer, 18-inches (45.72 cm) is required.
DDryer should be positioned 12-inches (30.48 cm) away from the
nearest obstruction and 24-inches (60.96 cm) is recommended for
ease of installation, maintenance, and service.
E2-inch (5.08 cm) minimum is required for opening the control door.
FFlooring should be level or below dryer cabinet for ease of removing
panels during maintenance.
GDryers may be positioned sidewall to sidewall, however a 1/16”
(1.5875 mm) minimum allowance must be made for the opening
and closing of the control door, along with the removal of panels
during maintenance.
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8113242-3
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A = 12-inches B = 15-inches
Note
Component failure due to dry cleaning solvent
fumes will void the warranty.
Exhaust Requirements ______________
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, and shutdown of the burner by the
airflow (sail) switch, burner hi-limits, or lint chamber hi-limit
protector thermostat. The dryer must be installed with a proper
exhaust duct connection to the outside.
Where possible, it is suggested to provide a separate (single)
exhaust duct for each dryer.
Caution
This dryer produces combustible lint and must
be exhausted to the outdoors.
Improperly sized or installed exhaust ductwork can create
a potential fire hazard. Dryer must be exhausted to the
outdoors.
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. The shape of the
ductwork is not critical so long as the minimum cross section
area is provided. Single or independent dryer venting is
recommended.
It is suggested that the use of 90° turns be avoided; use 30°
or 45° angles instead.
The 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.
Important
When connecting ductwork to the dryer exhaust
duct, be sure that when screws are used they do
not restrict the operation (both opening and closing) of the
damper.
Note
When the exhaust ductwork passes through a
wall, ceiling, or roof made of combustible
materials, the opening must be 2-inches (5.08 cm) larger
than the duct (all the way around). The duct must be
centered within this opening.
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 (i.e.,
roof or ground level).
EXAMPLE: For a bank of 4 dryers, 2 unrestricted openings
measuring 12-inches by 15-inches (30.5 cm by 38.1 cm) 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 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.
Fresh Air Supply Requirements___
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. The dryer must be installed with provisions for
adequate combustion and make-up air supply.
Air supply (make-up air) must be given careful consideration
to ensure proper performance of each dryer. As a general
rule, an unrestricted air entrance from the outdoors
(atmosphere) measuring a minimum size of 8-inches by
12-inches (20.32 cm by 30.5 cm) is required for each dryer.
(Based on 1 square inch per 1,000 Btus.)
To compensate for the use of registers or louvers used over
the openings, this 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.

113242-3 9
Vertical Venting
When vertical single 8-inch (20.32 cm) venting is used (refer
to Illus. B below), the ductwork from the dryer to the outside
outlet cannot exceed 55 feet (16.7 meters). This calculation
compensates for the use of a maximum of three (3) elbows
including the two (2) elbows creating the 180° (turned
downward) outside outlet.
Illus. B
If the length of the duct run or quantity of elbows used exceeds
the above noted specifications, the cross-sectional area of
the ductwork must be increased in proportion to the number
of elbows or duct run added.
Important
Do not use screens, louvers, or caps on the
outside opening of the exhaust ductwork.
Exhaust back pressure measured by a manometer at the
dryer exhaust duct area must be no less than 0 and must
not exceed 0.3 inches (0.74 mb) of water column (W.C.).
For extended ductwork runs, the cross section area of the
duct can only be increased to an extent. For extended
ductwork runs, a professional heating, ventilating, and
air-conditioning (HVAC) firm should be consulted for
proper venting information.
Single Dryer Venting
Important
For exhaust duct runs over 85 feet (25.9 meters) a
minimum size of 10-inches (25.4 cm) must be
used.
Horizontal Venting
When a single 8-inch (20.32 cm) horizontal vent is used, the
ductwork to the outlet cannot exceed 85 feet (25.9 meters),
refer to Illus. A below. This calculation of 85 feet (25.9 meters)
compensates or allows for the use of a maximum of only one
(1) elbow, (which is the outside outlet protection).
Illus. A
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10 113242-3
Horizontal Venting
Illus. C
Vertical Venting
Illus. D
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Multiple Dryer (Common) Venting
If it is not feasible to provide separate exhaust
ducts for each dryer, ducts for individual dryers
may be channeled into a common main duct.
Each dryer is provided with a back draft damper.
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 airflow.
The main common duct may be any shape so
long as the minimum cross-sectional area is
provided. The main duct should be tapered with
the diameter increasing before each individual
8-inch (20.32 cm) duct is added (refer to Illus. C
for horizontal venting and Illus. D for vertical
venting).
Important
No more than four (4) dryers
maximum should be connected to
one (1) main common duct with a vertical run.
Note
Distance between dryer single ducts
being connected to the main
common duct must be a minimum width of
34-1/4” (87 cm).
Ductwork should be laid out in such a manner
where allowances are made at rear area of the
dryer for removal of rear service panels or
guards.
The illustrations show the minimum cross
section area for multiple dryer venting. These
figures must be increased in proportion if the
main duct run from the last dryer to where it
exhausts has numerous elbows or is unusually
long.

113242-3 11
Gas and Steam Models Only
* Dryers are built 4-wire, 3-wire is available. 8/12/04
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Electrical Information _______________
Electrical Requirements
All electrical connections must be made by a properly licensed
and competent electrician. This is 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, materials, and workmanship must
conform to the applicable requirements of 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.
Important
Failure to comply with these codes or ordinances,
and/or the requirements stipulated in this manual
can result in personal injury or component failure.
Note
Component failure due to improper installation
will void the warranty.
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 a
fire hazard. The copper conductor wire/cable must be of proper
ampacity and insulation in accordance with electric codes
for making all service connections.
Note
The use of aluminum wire will void the warranty.
An individual ground circuit must be provided to
each dryer, do not daisy chain.
Component failure due to improper voltage application will
void the warranty.
The manufacturer reserves the right to make changes in
specifications at any time without notice or obligation.
Important
A separate protected circuit must be provided to
each dryer.
The dryer must be connected to the electric supply shown
on the data label. In the case of 208 VAC or 240 VAC, the
supply voltage must match the electric service
specifications of the data label exactly.
The wire size must be properly sized to handle the related
current.
Warning
208 VAC and 240 VAC are not the same. Any
damage done to dryer components due to
improper voltage connections will automatically void the
warranty.
Electrical Service Specifications
Important
Figures shown are for non-reversing models only.
For reversing models contact the factory.
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Electric Models Only
All electrically heated dryers must be connected to the electric
service shown on the dryer’s data label. The connecting
wires must be properly sized to handle the rated current.
ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER)
IMPORTANT:
NOTES: A.
B.
C.
208 VAC AND 240 VAC ARE NOT THE 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
Non-Reversing
120 1ø 28.7 –15
208 1ø 25.5 –15
240 1ø 24.8 4.6 15
208 3ø 33.1 –15
240 3ø 33.3 4.2 15
380-400 3ø 4* –2.2 15
416 3ø 4* –2.3 15
460/480 3ø 32.1 –15
Reversing
208 3ø 35.0 –15
220 3ø 3 – 6.8 15
240 3ø 35.6 7.4 15
380-400 3ø 4* –3.4 15
416 3ø 4* –3.6 15
* Dryers are built 4-wire, 3-wire is available. 8/12/04
ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER)
IMPORTANT:
NOTES: A.
B.
C.
208 VAC AND 240 VAC ARE NOT THE 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
Non-Reversing
120 1ø 28.7 –15
208 1ø 25.5 –15
240 1ø 24.8 4.6 15
208 3ø 33.1 –15
240 3ø 33.3 4.2 15
380-400 3ø 4* –2.2 15
416 3ø 4* –2.3 15
460/480 3ø 32.1 –15
Reversing
208 3ø 35.0 –15
220 3ø 3 – 6.8 15
240 3ø 35.6 7.4 15
380-400 3ø 4* –3.4 15
416 3ø 4* –3.6 15

12 113242-3
For 110VApplications
Single-Phase Electrical Lead Connections
Black
+
Positive
White or Red
+
Neutral
or L2
Green
+
Ground
Grounding
A ground (earth) connection must be provided and installed
in accordance with state and local codes. In the absence of
these codes, grounding must conform to applicable
requirements of the National Electrical Code ANSI/NFPA NO.
70-LATEST EDITION, or in Canada, the installation must
conform to applicable Canada Standards: Canadian Electrical
Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION.
The ground connection may be to a proven earth ground at
the location service panel.
For added personal safety, when possible, it is suggested
that a separate ground wire (no. 18 minimum) be connected
from the ground connection of the dryer to a grounded cold
water pipe. Do not ground to a gas pipe or hot water pipe.
The grounded cold water pipe must have metal-to-metal
connection all the way to the electrical ground. If there are
any nonmetallic interruptions, such as, a meter, pump, plastic,
rubber, or other insulating connectors, they must be jumped
out with no. 4 copper wire and securely clamped to bare
metal at both ends.
Important
For personal safety and proper operation, the
dryer must be grounded.
Provisions are made for ground connection in each dryer at
the electrical service connection area.
Electrical Connections
A wiring diagram is located inside the control box for
connection data.
If local codes permit, power to the dryer can be made by the
use of a flexible U.L. listed power cord/pigtail (wire size must
conform to rating of dryer), or the dryer can be hard wired
directly to the service breaker panel. In both cases, a strain
relief must be installed where the wiring enters the dryer.
Gas and Steam Models only
Important
A separate protected circuit must be provided to
each dryer.
Single-Phase (1ø) Wiring Connections/Hookup
The electrical input connections on all single-phase (1ø) gas
dryers and steam dryers are made into the rear service box
located at the upper left area of the dryer.
!
!

113242-3 13
The neutral will only be used on 4-wire service. This is typical
for 380-416V, 50 Hz.
Electrically Heated Models Only
The only electrical input connections to the dryer are the
3-phase (3ø) power leads (L1, L2, L3, and sometimes neutral)
and ground. Single-phase (1ø) power for the control circuit
and for any single-phase (1ø) motors (if present) is done
internally to the dryer by the factory at the oven contactor. No
single-phase (1ø) input connection is required on a 3-phase
(3ø) dryer.
Caution
The dryer must be grounded. A ground lug has
been provided for this purpose.
Input connection wiring must be sized properly to handle the
dryer’s current draw. This information is printed on the dryer’s
data label.
The electrical input connections are made at the electric oven
contactor located inside the assembly at the rear center upper
section of the dryer. The ground connection is made to a
copper lug also provided in this area. To gain access, remove
oven rear service cover.
Important
A strain relief must be used where the input
wiring enters the oven assembly.
!
!
For 208-240V Applications
A ground lug is provided in the rear electrical box to connect
your service ground.
3-Phase (3ø) Wiring Connections/Hookup
The electrical connections on all 3-phase (3ø) gas and steam
dryers are made into the rear service box located at the upper
left area of the dryer. The electrical connections are made at
the power distribution block located in the service box. The
ground connection is made to the copper lug, also provided
in this box. To gain access, the service box cover must be
removed.

14 113242-3
The input ratings shown on the dryer data label are for
elevations up to 2,000 feet (610 meters), unless elevation
requirements of over 2,000 feet (610 meters) were specified
at the time the dryer order was placed with the factory. The
adjustment or conversion of dryers in the field for elevations
over 2,000 feet (610 meters) is made by changing each burner
orifice. If this conversion is necessary, contact the reseller
who sold the dryer or contact the factory.
Important
This gas dryer is not provided with an internal gas
supply shutoff and an external gas supply shutoff
must be provided.
Technical Gas Data
Gas Specifications
Shaded areas are stated in metric equivalents
*Measured at outlet side of gas valve pressure tap when gas valve is on.
Gas Connections
Inlet connection ............ 1/2” N.P.T.
Inlet supply size ........... 1/2” Diameter Pipe (minimum)
Heat input (per dryer) .. 95,000 Btu/hr (23,940 kcal/hr)
Natural Gas
Regulation is controlled by the dryer’s gas valve’s internal
regulator. Incoming supply pressure must be consistent
between a minimum of 6.0 inches (14.92 mb) and a maximum
of 12.0 inches (29.9 mb) water column (W.C.) pressure.
Liquid Propane (L.P.) Gas
Dryers made for use with L.P. gas have the gas valve’s internal
pressure regulator blocked open so that the gas pressure
must be regulated upstream of the dryer. The pressure
measured at each gas valve pressure tap must be a
consistent 10.5 inches (26.1 mb) water column. There is no
regulator or regulation provided in an L.P. dryer. The pressure
must be regulated at the source (L.P. tank) or an external
regulator must be added to each dryer.
Shaded area is stated in metric equivalent
* Drill Measurement Size (D.M.S.) equivalents are as follows:
Natural Gas ........................... #29 =0.1360” (3.4540 mm).
Liquid Propane Gas ............... #46 =0.0810” (2.0574 mm).
!
Type of Gas Manifold Pressure* In-Line Pressure
Natural 3.5 inches W.C. 6.0-12.0 inches W.C.
8.7 mb 14.92 - 29.9 mb
Liquid
Propane
10.5 inches W.C. 11.0 inches W.C.
26.1 mb 27.4 mb
TYPE OF GAS
Btu/hr
Rating kcal/hr
Rating
Natural Liquid Propane
Qty. D.M.S.* Part No. Qty. D.M.S.* Part No.
95,000 23,940 2#29 140820 2#46 140806
LIQUID PROPANE CONVERSION KIT PART NUMBER 883306
!
!
!
!
!
Gas Information ______________________
It is your responsibility to have all plumbing connections made
by a qualified professional to ensure that the gas plumbing
installation is adequate and conforms to local and state
regulations or codes. In the absence of such codes, all
plumbing connections, materials, and workmanship must
conform to the applicable requirements of the National Fuel
Gas Code ANSI Z223.1-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 comply with codes or ordinances,
and/or requirements in this manual, can result in
personal injury and improper operation of the dryer.
The dryer and its individual shutoff valves must be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess
of 1/2 psig (3.5 kPa). The dryer must be isolated from the
gas supply piping system by closing its individual manual
shutoff valve during any pressure test of the gas supply piping
system at test pressures equal to or less than 1/2 psig (3.5
kPa).
Important
Failure to isolate or disconnect the dryer from
supply as noted can cause irreparable damage
to the gas valve, which will void the warranty.
Warning
Fire or explosion could result due to failure of
isolating or disconnecting the gas supply as
noted.
Gas Supply
The gas dryer installation must meet the American National
Standard...National Fuel Gas Code ANSI Z223.1-LATEST
EDITION, or in Canada, the Canadian Installation Codes CAN/
CGA-B149.1 M91 (Natural Gas) or CAN/CGA-B149.2-M91 (L.P.
Gas) or LATEST EDITION, as well as local codes and
ordinances and must be done by a qualified professional.
Note
Undersized gas piping will result in ignition
problems, slow drying, increased use of energy,
and can create a safety hazard.
The dryer must be connected to the type of heat/gas indicated
on the data label. If this information does not agree with the
type of gas available, do not operate the dryer. Contact the
reseller who sold the dryer or contact the factory.
Important
Any burner changes or conversions must be
made by a qualified professional.

113242-3 15
Note
A water column (W.C.) test pressure of 3.5 inches
(8.7 mb) for natural gas and 10.5 inches (26.1
mb) for liquid propane (L.P.) dryers is required at the gas
valve pressure tap of each dryer for proper and safe
operation.
A 1/8” N.P.T. plugged tap, accessible for a test gauge
connection, must be installed in the main gas supply line
immediately upstream of each dryer.
Important
Pipe joint compounds that resist the action of
natural gas and L.P. gas must be used.
Test all connections for leaks by brushing on a soapy water
solution (liquid detergent works well).
Warning
Never test for leaks with a flame!!!
All components/materials must conform to National Fuel Gas
Code Specifications ANSI Z223.1-LATEST EDITION, or in
Canada, 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), as well as local codes and
ordinances and must be done by a qualified professional. It
is important that gas pressure regulators meet applicable
pressure requirements, and that gas meters be rated for the
total amount of all the appliance Btus being supplied.
Important
The dryer and its individual shutoff valve must be
disconnected from the gas supply piping system
during any pressure testing of that system at test pressures
in excess of 1/2 psig (3.5 kPa).
Note
The dryer must be isolated from the gas supply
piping system by closing its individual manual
shutoff valve during any pressure test of the gas supply
system at test pressures equal to or less than 1/2 psig (3.5
kPa).
!
!
!
!
!
!
Piping Connections
All components/materials must conform to National Fuel Gas
Code Specifications ANSI Z223.1-LATEST EDITION, or in
Canada, 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), as well as local
codes and ordinances and must be done by a qualified
professional. It is important that gas pressure regulators
meet applicable pressure requirements, and that gas meters
be rated for the total amount of all the appliance Btus being
supplied.
The dryer is provided with a 1/2” N.P.T. inlet pipe connection
extending out the back area of the burner box. The minimum
pipe size (supply line) to the dryer is 1/2” diameter. For ease
in servicing, the gas supply line of each dryer must have its
own shutoff valve.
The size of the main gas supply line (header) will vary
depending on the distance this line travels from the gas meter
or, in the case of L.P. gas, the supply tank, other gas-operated
appliances on the same line, etc. Specific information
regarding supply line size should be determined by the gas
supplier.
Note
Undersized gas supply piping can create a low or
inconsistent pressure, which will result in erratic
operation of the burner ignition system.
Consistent gas pressure is essential at all gas connections.
It is recommended that a 3/4-inch (19.05 mm) pipe gas loop
be installed in the supply line servicing a bank of dryers. An
in-line pressure regulator must be installed in the gas supply
line (header) if the (natural) gas pressure exceeds 12.0
inches (29.9 mb) of water column (W.C.) pressure. (Refer to
the illustrations above.)

16 113242-3
Important
Coil failure due to improper pH level will void the
warranty.
Steam Requirements
Shaded areas are stated in metric equivalents
* The minimum operating pressure is 100 psig (689.47 kPa)for optimum results.
Installation Instructions
To ensure an adequate supply of steam is provided, be sure
that the steam supply lines and steam return lines are sized
and laid out as stipulated in this manual. Inadequate steam
supply lines and steam return lines or improper steam
plumbing will result in poor performance and can cause
component failure. Clean, dry steam must be provided to the
dryer.
Important
Steam coil failure due to water hammer by wet
steam will void the warranty.
The pressure of the condensate in the steam supply line will
cause water hammer and subsequent heat exchanger
(steam coil) failure. The steam supply connection into the
main supply line must be made with a minimum 10-inch
(25.4 cm) riser. This will prevent any condensate from draining
towards the dryer.
The steam supply line to the dryer must include a
12-inch (30.48 cm) riser along with a drip trap and check
valve. This will prevent any condensate from entering the
steam coil.
Operating Steam Pressure
Maximum 150 psig 862 kPa
Recommended 100 psig* 689 kPa
Heat Input (Normal Load) 3.0 bhp
Consumption (Approximate)
@ 125 psi (8.6 bar) 104 lbs/hr 47.17 kg/hr
!
!
!
!
Steam Information ___________________
It is your responsibility to have all plumbing connections made
by a qualified professional to ensure that the steam plumbing
installation is adequate and conforms with local and state
regulations or codes.
Care must be exercised when leveling steam dryers into final
position. After leveling the dryer, check the downward pitch of
the heat exchanger from front to rear with a level. Likewise,
check the downward pitch of the return condensate manifold
toward its outlet part. Absence of these downward pitches
will result in probable water hammer and premature heat
exchanger fracture and leakage.
The presence of condensate in the steam will cause water
hammer and subsequent heat exchanger failure. The steam
supply connection must be taken from the top of a
well-dripped steam main. If the supply run-out to the dryer
exceeds 20 feet (6.1 meters), it should be dripped just before
the control valve with a proper trap and dirt pocket.
Important
Failure to comply with the requirements
stipulated in this manual can result in component
failure, which will void the warranty.
Note
This dryer is manufactured with a pneumatic
(piston) damper system, which requires an
external supply of air (80 psi ± 10 psi [5.51 bar ± 0.68 bar]).
Steam Coil pH Level
The normal pH level for copper type steam coils must be
maintained between a value of 8.5 to 9.5. For steel type
steam coils the pH level must be maintained between a value
of 9.5 to 10.5. These limits are set to limit the acid attack of
the steam coils.

113242-3 17
Compressed
Air Supply Air Pressure
Normal 80 psi 5.51 bar
Minimum Supply 70 psi 4.82 bar
Maximum Supply 90 psi 6.21 bar
!
Flexible hoses or couplings must be used. The dryer vibrates
slightly when it runs and this will cause the steam coil
connections to crack if they are hard piped to the supply and
return mains.
Shutoff valves for each dryer should be installed in the supply
line, return line, and drip trap return line. This will allow the
dryer to be isolated from the supply main and the return main
if the dryer needs maintenance work.
Install an inverted bucket steam trap and check valve at least
12-inches (30.48 cm) below the steam coil as close to the
coil as possible.
A trap with a capacity of 350 lbs (160 kg) of condensate per
hour at 125 psi (8.61 bar) is needed for each unit.
The supply line and the return line should be insulated. This
will save energy and provide for the safety of the operator and
maintenance personnel.
Water pockets in the supply line, caused by low points, will
provide wet steam to the coil possibly causing steam coil
damage. All horizontal runs of steam supply piping should
be pitched 1/4-inch for every 1 foot (0.30 meters) back towards
the steam supply header causing the condensate in the line
to drain to the header. Install a bypass trap in any low point to
eliminate wet steam.
Important
Flexible hoses/couplings must be used. Coil
failure due to hard plumbing connections will void
the warranty.
Steam Damper Air System Connections
This dryer is manufactured with a pneumatic (piston) damper
system, which requires an external supply of compressed
air. The air connection is made to the steam damper solenoid
valve, which is located at the rear inner top area of the dryer
just in front of the electric service relay box.
Air Requirements
There is no air requirement for dryers with the
Electromechanical Steam Damper Option.
Shaded areas are stated in metric equivalents
Air Connection
Air connection to system – 1/8” N.P.T.
Air Regulation
No air regulator or filtration is provided with the dryer. External
regulation/filtration of 80 psi (5.51 bar) must be provided. It is
suggested that a regulator/filter gauge arrangement be
added to the compressed air line just before the dryer
connection. This is necessary to ensure that correct and
clean air pressure is achieved.

18 113242-3
!
Steam Damper System Operation
The steam damper, as shown in the illustration (above right),
allows the coil to stay constantly charged eliminating repeated
expansion and contraction. When the damper is opened, the
air immediately passes through the already hot coil, providing
instant heat to start the drying process. When the damper is
closed, ambient air is drawn directly into the basket (tumbler),
allowing a rapid cool down.
Steam Damper Air Piston (Flow Control)
Operation Adjustment
Damper operation was tested and adjusted prior to shipping
at 80 psi (5.51 bar). If damper air adjustment is necessary,
locate the flow control valve and make the necessary
adjustments as noted below.
Diagram 1 shows the damper in the heating (open) mode,
allowing heat into the basket (tumbler).
Diagram 2 shows the damper in the cool down (closed)
mode, pulling ambient air directly into the basket (tumbler)
without passing through the coils.
Note
With the dryer off or with no air supply, the steam
damper is in cool down mode as shown in
Diagram 2.
Notes _________________________________
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113242-3 19
!
Water Connections __________________
The water connection is made to the 3/4”-11.5 NH hose
adapter of the electric water solenoid valve, located at the
rear upper midsection of the dryer (refer to the photograph).
The water solenoid valve has a 3/8” M.P.T. connection supplied
with a 3/4”-11.5 NH hose adapter to provide the minimum
1/2-inch supply (feed) line. Flexible supply line/coupling must
be used in an effort to avoid damaging the electric water
solenoid valve.
Note
The 3/4”-11.5 NH is a standard hose coupling
screw thread. It is not to be confused with
3/4” N.P.T. The sealing of an NH connection is made with a
washer opposed to the mating threads of an N.P.T.
assembly. The two (2) thread designs are not compatible.
Important
Flexible supply line/coupling must be used.
Solenoid valve failure due to hard plumbing
connections will void warranty. It is recommended that a
filter or strainer be installed in the water supply line.
!
!
!
!
!
Water Information ___________________
Before You Start!
Check Local Codes and Permits
Call your local water company or the proper municipal
authority for information regarding local codes.
Important
It is your responsibility to have all plumbing
connections made by a qualified professional to
ensure that the plumbing installation is adequate and
conforms to local, state, and federal regulations or codes.
It is the installation or owner’s responsibility to see that the
necessary or required water, water pressure, pipe size, or
connections are provided. The manufacturer assumes no
responsibility if the fire suppression system is not
connected, installed, or maintained properly.
Installation ___________________________
Requirements
The fire suppression system must be supplied with a
minimum water pipe size of 1/2” and be provided with 40 psi
+/- 20 psi (2.75 bar +/- 1.37 bar) of pressure. For use of
optional manual bypass, a second source with the same
piping and pressure requirements is required.
Flexible 1/2 feeds must be provided to avoid damage to
electric water solenoid valve by vibration.
Important
Flexible supply line/coupling must be used.
Solenoid valve failure due to hard plumbing
connections will void warranty.
If the rear area of the dryer, or the water supply is located in an
area where it will be exposed to cold/freezing temperatures,
provisions must be made to protect these water lines from
freezing.
Warning
If the water in the supply line or water solenoid
valve freezes, the fire suppression system will be
INOPERATIVE!!
Important
Appliance is to be connected to the water mains
using a new hose-set and the old hose-sets
should not be reused.

20 113242-3
Optional Manual Bypass _____________
Provisions are made in the dryer’s fire suppression system
for the installation of an optional manual bypass. Depending
on the model dryer, the connections for the manual bypass
are made at the “T” or “four way” fitting located in the outlet
supply side of the water solenoid valve. The use and
connections of this manual bypass are at the option or
discretion of the owner.
The water connection for the manual bypass is made to the
“T” or “four way” fitting which has a 3/8” F.P.T. and a coupling
must be used to provide the minimum 1/2” supply (feed) line.
If the rear area of the dryer, or the water supply is located in an
area where it will be exposed to cold/freezing temperatures,
provisions must be made to protect these water lines from
freezing.
Typical Water Supply: