Image DE100 User manual

PAGE
SECTION 1: IMPORTANT INFORMATION 1-1
A. RECEIVING AND HANDLING 1-1
B. SAFETY PRECAUTIONS 1-1
C. IN CASE OF DETERIORATION PRODUCTS 1-3
SECTION 2: SPECIFICATIONS / COMPONENT IDENTIFICATION 2-1
A. TECHNICAL SPECIFICATION 2-1
B. TECHNICAL DIMENSION 2-3
SECTION 3: INSTALLATION PROCEDURES 3-1
A. LOCATION REQUIREMENTS 3-1
B. UNPACKG / SETTING UP 3-2
C. DRYER ENCLOSUE REQUIREMENTS 3-4
D. FRSH AIR SUPPLY 3-5
E. EXHAUST REQUIREMENTS 3-6
F. ELECTRICAL INFORRMATION 3-12
G. GAS INFORMATION 3-15
H. STEAM INFORMATION 3-18
I. PREPARATION FOR OPERTION / START UP 3-22
J. PRE - OPERATIONAL TESTS 3-23
SECTION 4: OPERATING AND PROGRAMMING INSTRUCTIONS 4-1
A. OPERATING INSTRUCTIONS 4-1
B. SHUTDOWN INSTRUCTIONS 4-2
C. SETTING THE PROGRAM 4-3
D. SETTING THE CONTROLLER 4-4
E. MEANING OF THE ALARM MASSAGES 4-5
SECTION 5: WARRANTY INFORMATION 5-1
A. RETURNING WARRANTY CARD(S) 5-1
B. WARRANTY 5-1
C. RETURNING WARRANTY PART(S) 5-1
SECTION 6: ROUTINE MAINTENANCE 6-1
A. CLEANING 6-1
B. ADJUSTMENTS 6-2
C. LUBRICATION 6-2
SECTION 7: TROUBLE SHOOTING 7-1
A. MICROPROCESSOR MODELS 7-1
B. TIMER MODELS 7-5
SECTION 8: SERVICE / PART INFORMATION 8-1
A. SERVICE 8-1
B. PARTS LIST 8-1

I
เครื่องหมายละสัญลักษณ์
Anyone operating or servicing this machine must follow the safety rules in this manual.
Particular attention must be paid to the DANGER, and WARING, and CAUTION blocks which
appear throughout the manual.
Symbols
Description
This warning symbol indicated the presence of hot surfaces
that could cause serious burns. Stainless steel and steam lines
can become extremely got and should not be touched.
IMPORTANT! Keep lint compartment clean
WARNING! Dry only water washed fabrics. Do not use heat
for drying foam rubber or similar textured rubber like
materials.
Information Alert to the correct direction of rotation.
DANGER! High voltage present.
DANGER! For the hand, Belts and pulley in motion.
Do Not operate with out Guard.

II
Symbols
Description
WARNING! Put DRYCLEANED Laundry into this dryer
Information The machine is use 24 VAC. for control.
IMPORTANT! Clean cylinder and check tumbler dryer
operation by running a load of wet cloths at full heat for 20
minutes.
WARNING! To reduce the risk of electric shock, disconnect
electric power before servicing
WARNING! This dryer must be exhausted to the outdoors.
Exhaust ductwork should be examined and cleaned, if
necessary, every three months after installation. Do not distort
thimble when installing ductwork. Make sure thimble vanes
open and close freely after ductwork has been installed.

IMPORTANT INFORMATION
SECTION 1
IMPORTANT INFORMATION
The dryer is shipped in a protective stretch wrap cover with protective cardboard comers and
top cover (or optional box) as a means of preventing damage in transit. Upon delivery, the dryer and
/ or protective 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 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. Dryers / 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.
Dryer assumes no responsibility for freight claims or damages.
6. If you need assistance in handling the situation, please contact the Dryer traffic manager
IMPORTANT:The dryer must be transported and handled in an upright position at all times.
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. PERSONAL INJURY or 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.
A. RECEIVING AND HANDLING
B. SAFETY PRECAUTIONS
1-1

IMPORTANT INFORMATION
3. What To Do If You Smell Gas:
a. DO NOT tries to light any appliance.
b. DO NOT touches any electrical switch.
c. DO NOT uses 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 the gas
supplier.
5. Dryer(s) must be exhausted to the outdoors.
6. Although dryer produces a very versatile machine, there are some articles that, due to fabric
compositional 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 – like materials. Drying in a heated basket (tumbler) may
damage plastics or rubber and also may be a fire hazard.
7. A program should be established for the inspection and cleaning of the lint in the burner area,
exhaust duct work and area around the back of 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 duct work 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 Electric 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 switch, lint drawer switch or heat circuit safety
devices ever be disabled.
WARNING: PERSONAL INJURY 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.
1-2

IMPORTANT INFORMATION
WARNING: Articles left in the dryer after the drying and cooling cycles have been completed can
create a fire hazard.
12. DO NOT operates steam dryers with more than 125 Psi steam pressure. Excessive steam
pressure can damage steam coil and / or harm personnel.
13. Replace leaking flexible steam hoses or other steam fixtures immediately. DO NOT operate
dryer with leaking flexible hoses. PERSONAL INJURY MAY RESULT.
14. Read and follow all caution and direction label attached to Dryer.
IMPORTANT: You must disconnect and lockout the electric supply and the gas supply or the
steam supply before any covers or guards are remove from the machine to allow
access to cleaning, adjusting, installation, or testing of any equipment per OSHA
(Occupational Safety and Health Administration) STANDARDS.
1. The defective products or parts can be sold to increase the financial value.
2. The defective products able to separate into parts and bring the materials which can convert
into new functional products.
3. The defective products can be reused by repairing and making the products is in good
condition.
C. IN CASE OF DETERIORATION PRODUCTS
1-3

SPECIFICATIONS / COMPONENT IDENTIFICATION
2-1
SECTION 2
SPECIFICATIONS / COMPONENT IDENTIFICATION
Model
30 lbs.
50 lbs.
75 lbs.
100 lbs.
120 lbs.
Units of Measurement
Metric
US
Maximum capacity (dry weight)
kg.
lbs.
13.6 (30)
22.7(50)
34(75)
45.4(100)
54.4(120)
Basket Diameter
mm.
inch
762(30”)
922(36.3”)
922(36.3”)
1130(44.5”)
1130(44.5”)
Basket Depth
mm.
inch
762(30”)
762(30”)
910(35.8”)
867(32.4”)
1076(42.4”)
Basket Volume
cu.m
cu.ft
0.35(12.4)
0.51(18)
0.61(21.5)
0.78(30.7)
1.08(38.1)
Basket Motor
kW
HP
0.373(0.5)
0.75(1)
0.75(1)
0.75(1)
0.75(1)
Blower Motor
kW.
HP
0.373(0.5)
0.75(1)
0.75(1)
2.24(3)
2.24(3)
OVERALL DIMENSIONS :
A –Machine Width
mm.
inch
805(31.7”)
980(38.6”)
980(38.6”)
1200(47.2”)
1200(47.2”)
B –Machine Depth
mm.
inch
1140(44.9”)
1150(45.3”)
1270(50”)
1460(57.5”)
1660(65.4”)
C –Machine Height at full
-Gas Model
mm.
inch
1840(72.4”)
1920(75.6”)
1920(75.6”)
2205(86.8”)
2205(86.8”)
-Steam Model
mm.
inch
1999(78.7”)
2040(80.3”)
2040(80.3”)
2318(91.3”)
2318(91.3”)
-Electric Model
mm.
inch
1860(73.2”)
1920(75.6”)
2002(78.8”)
2104(82.8”)
2104(82.8”)
GAS MODEL :
Air Flow
cmm
cfm
17(600)
21.25(750)
25.5(900)
62.3(2200)
62.3(2200)
Gas Consumption
kcal/hr
btu/hr
22680(90000)
32760(130000)
50400(200000)
94500(375000)
94500(375000)
Gas Inlet Connection
NPT
1/2”
1/2”
3/4”
1”
1”
Exhaust Duct Connection
mm.
inch
203(8”)
203(8”)
203(8”)
305(12”)
305(12”)
Net Weight (approx.)
kg.
lbs.
294(648.2)
348(767.2)
379(835.5)
596 (1254.4)
682(1503.6)
Shipping Weight (approx.)
kg.
lbs.
304(670.2)
358(789.3)
390(859.8)
616(1358.0)
702(1547.6)
STEAM MODEL :
Air Flow
cmm
cfm
17(600)
21.25(750)
25.48(900)
77.9(2750)
77.9(2750)
Steam Consumption
kg/hr
lb/hr
40.69(89.7)
71.99(158.7)
101.125(224.25)
203.45(448.5)
203.45(448.5)
Steam Supply Connection
NPT
3/4”
3/4”
3/4”
1-1/4”
1-1/4”
Steam Return Connection
1/2”
1/2”
1/2”
1/2”
1/2”
Exhaust Duct Connection
mm.
inch
203(8”)
203(8”)
203(8)”
305(12”)
305(12”)
Steam Pressure
bar
psi
5.6-8.79(80-125)
5.6-8.79(80-125)
5.6-8.79(80-125)
5.6-8.79(80-125)
5.6-8.79(80-125)
Air Pressure
bar
psi
N/a
N/a
N/a
N/a
6-8(87-116)
Net Weight (approx.)
kg.
lbs.
307(676.9)
362(798)
385(848.8)
609(1342.6)
731(1611.6)
Shipping Weight (approx.)
kg.
lbs.
315(694.5)
372(820.1)
396(873.0)
629(1386.7)
751(1655.7)
ELECTRIC MODEL :
Air Flow
cmm
cfm
17(600)
21.25(750)
25.48(900)
77.9(2750)
77.9(2750)
Electric Consumption
kW
24
24
36
72
72
Exhaust Duct Connection
mm.
inch
203(8”)
203(8”)
203(8”)
305(12”)
305(12”)
Net Weight (approx.)
kg.
lbs
308(679)
354(780.4)
382(842.2)
558(1230.2)
702(1547.6)
Shipping Weight (approx.)
kg.
lbs
317(698.9)
364(802.5)
393(866.4)
578(1274.3)
722(1591.7)
THERMAL OIL MODEL :
Air Flow
cmm
cfm
17(600)
21.25(750)
25.48(900)
77.9(2750)
77.9(2750)
Thermal Oil Consumption
kg/hr
lb/hr
3837.6
6724.8
6724.8
20548.8
20548.8
Thermal Oil Supply Connection
NPT
1/2”
1 ½”
1 ½”
2 ½”
2 ½”
Thermal Oil Return Connection
1/2”
1 ½”
1 ½”
2 ½”
2 ½”
Exhaust Duct Connection
mm.
Inch
203(8”)
203(8”)
203(8)”
305(12”)
305(12”)
Thermal Oil Pressure
bar
psi
2-4(39-58)
2-4(39-58)
2-4(39-58)
2-4(39-58)
2-4(39-58)
Air Pressure
bar
psi
-
-
-
6-8(87-116)
6-8(87-116)
Net Weight (approx.)
kg.
lbs.
324(714.3)
460(1014.1)
460(1014.1)
N/A
865(1906.9)
Shipping Weight (approx.)
kg.
lbs.
335(738.5)
475(1047.1)
475(1047.1)
N/A
885(1951)
A. TECHNICAL SPECIFICATIONS

SPECIFICATIONS / COMPONENT IDENTIFICATION
2-2
Model
150 lbs.
170 lbs.
190 lbs.
200 lbs.
Units of Measurement
Metric
Maximum capacity (dry weight)
kg.
lbs.
67.9(150)
77.1(170)
86(190)
90 (200)
Basket Diameter
mm.
inch
1308(51.5”)
1308(44.5”)
1308(51.38”)
1500(59”)
Basket Depth
mm.
inch
960(37.8”)
1080(42.5”)
1270(50”)
1190(46.85”)
Basket Volume
cu.m
cu.ft
1.29(45.6)
1.45(51.2)
1.71(60.4)
2.1(74.16)
Basket Motor
kW
HP
1.5(2)
1.5(2)
2.24(3)
2.24(3)
Blower Motor
kW.
HP
5.5(7.5)
5.5(7.5)
5.5(7.5)
5.5(7.5)
OVERALL DIMENSIONS :
A –Machine Width
mm.
inch
1420(55.9”)
1420(55.9”)
1416(55.7”)
1616 (63.6”)
B –Machine Depth
mm.
inch
1601(63”)
1700(66.9”)
1970(77.6”)
2027(79.8”)
C –Machine Height at full
-Gas Model
mm.
inch
2530(99.6”)
2530(99.6”)
2530(99.6”)
2682(105.6”)
-Steam Model
mm.
inch
2573(101.3”)
2573(101.3”)
2380(93.7”)
2528(99.5”)
-Electric Model
mm.
inch
2380(93.7”)
2380(93.7”)
2380(93.7”)
2528(99.5”)
GAS MODEL :
Air Flow
cmm
cfm
70.8(2500)
113.27(4000)
113.27(4000)
150(5300)
Gas Consumption
kcal/hr
btu/hr
123480(490000)
138700(550000)
157600(625000)
157600(625000)
Gas Inlet Connection
NPT
1”
1”
1”
1”
Exhaust Duct Connection
mm.
inch
406(16”)
406(16”)
406(16”)
406(16”)
Net Weight (approx.)
kg.
lbs.
896(1975.3)
1016(2239.9)
1150(2535.3)
1216(2681)
Shipping Weight (approx.)
kg.
lbs.
922(2028.4)
1046(2306)
1180(2601.5)
1246(2747)
STEAM MODEL :
Air Flow
cmm
cfm
113.26(4000)
113.26(4000)
184(6500)
184(6500)
Steam Consumption
kg/hr
lb/hr
297.35(655.5)
297.35(655.5)
422.55(931.5)
422.55(931.5)
Steam Supply Connection
NPT
1-1/4”
1-1/4”
2”
2”
Steam Return Connection
3/4”
3/4”
1”
1”
Exhaust Duct Connection
mm.
inch
406(16”)
406(16”)
406(16”)
406(16”)
Steam Pressure
bar
psi
5.6-8.79(80-125)
5.6-8.79(80-125)
5.6-8.79(80-125)
5.6-8.79(80-125)
Air Pressure
bar
psi
6-8(87-116)
6-8(87-116)
6-8(87-116)
6-8(87-116)
Net Weight (approx.)
kg.
lbs.
919(2026)
1042(2297.2)
1180(2601.5)
1229(2709.5)
Shipping Weight (approx.)
kg.
lbs.
949(2092.2)
1072(2363.4)
1210(2667.6)
1269(2797.7)
ELECTRIC MODEL :
Air Flow
cmm
cfm
113.26(4000)
113.26(4000)
184(6500)
184(6500)
Electric Consumption
kW
120
120
120
120
Exhaust Duct Connection
mm.
inch
406(16”)
406(16”)
406(16”)
406(16”)
Net Weight (approx.)
kg.
lbs
905(1995)
1026(2261.9)
N/a
1331(2934.4)
Shipping Weight (approx.)
kg.
lbs
932(2054)
1056(2328.1)
N/a
1371(3022.5)
THERMAL OIL MODEL :
Air Flow
Cmm
cfm
113.26(4000)
113.26(4000)
184(6500)
184(6500)
Thermal Oil Consumption
kg/hr
lb/hr
27360
27360
24073.2
24073.2
Thermal Oil Supply Connection
NPT
2”
2”
2”
2”
Thermal Oil Return Connection
2”
2”
2”
2”
Exhaust Duct Connection
mm.
inch
406(16”)
406(16”)
406(16”)
406(16”)
Thermal Oil Pressure
bar
psi
2-4(39-58)
2-4(39-58)
2-4(39-58)
2-4(39-58)
Air Pressure
bar
psi
6-8(87-116)
6-8(87-116)
6-8(87-116)
6-8(87-116)
Net Weight (approx.)
kg..
lbs.
N/A
1042(2297)
1398(3082)
N/A
Shipping Weight (approx.)
kg.
lbs.
N/A
1072(2363)
1428(3148.2)
N/A

SPECIFICATIONS / COMPONENT IDENTIFICATION
2-3
Figure.2-1 Dryer Model 100 lb. Technical Dimension
B. TECHNICAL DIMENSION

INSTALLATION PROCEDURES
3-1
SECTION 3
INSTALLATION PROCEDURES
Installation should be performed by competent technicians in accordance with local and
state codes. In the absence of these codes, installation must conform to applicable American
National Standards: ANSI Z223.1 –LATEST EDITION (National Fuel 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 (L.P. Gas) or LATEST EDITION (for General Installation and Gas
Plumbing ) or Canadian Electrical Code Parts 1 & 2 CSA C22.1 –1990 or LATEST EDITION (for
Electrical Connections).
Before installing the dryer, be sure the location conforms to local codes and ordinances. In
absence of such codes or ordinances location must conform with 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 (L.P. Gas) or LATEST EDITION.
1. The dryer must be installed on a sound level floor capable of supporting its weight. It is
recommended that carpeting be removed from the floor area that the dryer is to rest on.
2. The dryer must not be installed or stored in an area where it will be exposed to water and / or
weather.
3. This dryer is for use in noncombustible locations.
4. Provisions for adequate air supply must be provided as noted in this manual (refer to Fresh
Air Supply in Section D).
5. Clearance provisions must be made from combustible construction as noted in this manual
(refer to Dryer Enclosure 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. Dryer must be exhausted to the outdoors (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 should be located where a minimum amount of exhaust duct will be
necessary.
A. LOCATION REQUIRMENTS

INSTALLATION PROCEDURES
3-2
Remove protective shipping material (i.e., plastic wrap and / or optional shipping box) from dryer.
1. Unscrew nut the wood piece before operating the machine.
2. Take out the wood piece before operating the machine.
Figure.3-1 Protective Shipping Material
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 un-skid the dryer, locate and remove the four (4) lag bolts securing the base of the
dryer to the wooden skid. Two (2) are located 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 lint
drawer and the three (3) Phillips head screws securing lint door in place.
Figure.3-2 Dryer Model 100 lb. Rear View
B. UNPACKING / SETTING UP

INSTALLATION PROCEDURES
3-3
1. Leveling Dryer
To level dryer, place 4 –inches square metal shims or other suitable material under the base
pads. It is suggested that the dryer be tilted slightly to the rear.
2. If more headroom is needed when moving dryer into position, the top console (module) may
be removed.
To remove top console (module)
1) Disconnect the ground wire at the Rear Upper Left Hand Cover of Dryer.
2) Remove the six (6) set of nuts and washers holding the console (module) to base.
3) Open the control door / control panel and disconnect the white 15 –pin plug connector
located in the base of the control box.
4) Disconnect white plug connector located outside backside of the control box (provides
power to heat circuit).
5) Lift the console (module) off of the dryer base.
IMPORTANT: The dryer must be transported and handled in an upright position at all times.
Figure.3-3 Dryer Model 100 lb. Rear Viewto Remove Top Console (module)

INSTALLATION PROCEDURES
3-4
Even though a 12 –inches clearance is acceptable, it is recommended that the rear of the
dryer be positioned approximately two (2) feet (24 –inches) from 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
and must not extend more than 4 –inches to the rear of the dryer front. The bulkhead facing must
not be closed in all the way to the top of the dryer. A 2 –inches clearance is required.
NOTE: Bulkhead facing should not be installed until after dryer is in place. Ceiling area
must be located a minimum of 12 –inches above the top of the dryer.
IMPORTANT: Even though a minimum of only 12 –inches is required, 18 –inches or more is
suggested, for steam dryers and especially in cases where sprinkler heads are over
the dryers.
NOTE: When fire sprinkler systems are located above the dryers, a minimum of 18 –
inches above the dryer console (module) is suggested. Dryers may be positioned
side wall to side wall however, 1 or 2 –inches is suggested between dryers or
wall) for ease of installation and maintenance. Allowances must be made for the
opening and closing of the control and lint doors.
Figure.3-4 Dryer Clearance to Adjacent Wall Structures
C. DRYER ENCLOSURE REQUIREMENTS

INSTALLATION PROCEDURES
3-5
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.
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 air flow of
2,150 cfm (cubic feet per minute) must be supplied to each gas dryer and electric dryer with a
72 Kw oven, 2,500 cfm to each electric dryer with an 80 Kw oven, and 2,750 cfm for each steam
dryer. As a general rule, an unrestricted air entrance from the outdoors (atmosphere) of a minimum
of three (3) square feet is required for each gas dryer and 72 Kw electric dryer and a minimum of
five (5) square feet for each steam dryer and 80 Kw electric 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 (33) percent. 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.
EXAMPLE: For a bank of six (6) gas dryers, two (2) openings measuring 3 feet by 3 feet (18
square feet) is acceptable.
Allowances must be made for remote or constricting passageways or where dryers are
located at excessive altitudes or predominantly low pressure areas.
Figure.3-5 Fresh Air Supply
D. FRESH AIR SUPPLY

INSTALLATION PROCEDURES
3-6
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 motors and other dryer components.
NOTE: Component failure due to dry cleaning solvent fumes. VOID THE
WARRANTY.
1. General Exhaust Duct Work Information
Exhaust duct work should be designed and installed by a qualified professional. Improperly
sized duct work 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 air flow (sail) switches, burner
hi –limits, or basket (tumbler) hi –heat thermostats.
CAUTION: Dryer must be exhausted to the outdoors.
CAUTION: Improperly sized or installed exhaust duct work can create POTENTIAL FIRE
HAZARD.
NOTE: When a dryer is exhausted separately, it is recommended that a back draft damper
be installed.
NOTE: When dryers are exhausted into a multiple (common) exhaust line, each dryer
must be supplied with a back draft damper.
The duct work should be laid out in such a way that the duct work travels as directly as
possible to the outdoors with as few turns as possible. Single or independent dryer venting is
recommended. When single dryer venting is used, the duct work from the dryer to the outside
exhaust outlet should not exceed twenty (20) feet.
In the case of multiple (common) dryer venting, the distance from the last dryer to the
outside exhaust outlet should not exceed twenty (20) feet. The shape of the duct work 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 elbows should preferably
be 1 –1/2 times the diameter of the duct. Excluding basket / 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 section area of the duct work must
be increased in proportion to number of elbows added.
All duct work 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 duct work joints must be taped to prevent moisture and lint
from escaping into the building. Inspection doors should be installed at strategic points in the
exhaust duct work for periodic inspection and clean –out of lint from the duct work.
IMPORTANT: Exhaust back pressure measured by a manometer at each basket exhaust duct area
should not exceed 0.3 inches of water column.
NOTE: Where the exhaust duct work passes through a wall, ceiling, or roof made of
combustible materials, the opening must be 2 –inches larger (all the way around)
than the duct. The duct must be centered within this opening.
E. EXHAUST REQUIREMENTS

INSTALLATION PROCEDURES
3-7
Outside Duct Work Protection
To protect the outside end of horizontal duct work from the weather, a 90° elbow bent
downward should be installed where the exhaust exits the building. If the exhaust duct work 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 NOT use screens or caps on the outside of opening of exhaust duct work.
Figure.3-6 Outside Duct Work Protection
2. Single Dryer Venting
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 duct work travels as directly as possible to
the outdoors with as few turns as possible. It is suggested that the use of 90° turns in ducting be
avoided use 30° and / or 45° angles instead. The shape of the exhaust duct work is not critical so
long as the minimum cross section area is provided.
IMPORTANT: Minimum duct size for a gas dryer or 72 Kw electric dryer is 14 –inches for a
round duct or 12.50”× 12.50”for a square duct. The minimum duct size for a
steam dryer or 80 Kw electric dryer is 16 –inches for a round duct or
14.50” × 14.50”for a square duct. Duct size must not be reduced anywhere
down stream of dryer.
IMPORTANT: Exhaust back pressure measured by a manometer at each basket (tumbler)
exhaust duct area should not exceed 0.3 inches of water column.
It is suggested that the duct work from each dryer (minimum 14 –inches for a gas dryer or
72 Kw electric dryer and 16 –inches for a steam dryer or 80 Kw electric dryer) not exceed twenty
(20) feet with no more than two (2) elbows (excluding dryer connections and outside exhaust
outlets). If the duct work exceeds twenty (20) feet or has numerous elbows, the cross section area of

INSTALLATION PROCEDURES
3-8
the duct work must be increased in proportion to the length and number of elbows in it. In
calculating duct size, the cross section area of a square or rectangular duct must be increased by
twenty (20) percent for each additional twenty (20) feet. The diameter of a round exhaust duct
should be increased ten (10) percent for each additional fifteen (15) feet. Each 90° elbow is
equivalent to an additional thirty (30) feet, and each 45° elbow is equivalent to an additional fifteen
(15) feet.
Figure.3-7 Single Dryer Venting
IMPORTANT: For extended duct work runs, the cross section area of the duct work can only be
increased to an extent. Maximum proportional duct work runs cannot exceed
twenty (20) feet more than the original limitations of twenty (20) feet with two
(2) elbows. When the duct work approaches the maximum limits as noted in this
manual, a professional Heating Venting Air Conditioning (HVAC) firm should
be consulted for proper venting information.
All duct work 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 duct work joints must be taped to prevent moisture and lint
from escaping into the building. Inspection doors should be installed at strategic points in the
exhaust duct work for periodic inspection and clean –out of lint from the duct work.
NOTE: Where the exhaust duct passes through a wall, ceiling, or roof made of
combustible materials, the opening must be 2 –inches larger (all the way around)
than the duct. The duct must be centered within this opening.
Outside Duct Work Protection
To protect the outside end of horizontal duct work from the weather, a 90° elbow bent
downward should be installed where the exhaust exits the building. If the exhaust duct work travels

INSTALLATION PROCEDURES
3-9
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 nearest obstruction.
IMPORTANT: DO NOT use screens, louvers, or caps on the outside of opening of exhaust duct
work.
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 air flow and should be
spaced at least 48 3/8 inches apart. The main duct should be tapered, with the diameter increasing
before each individual 14 –inches (minimum for gas dryers or 72 Kw electric dryers) or 16 –inches
(minimum for steam dryers or 80 Kw electric dryers) duct is added.
IMPORTANT: The Dryer –100 lb. is not provided with a back draft damper. When exhausted
into a multiple (common) exhaust line, a back draft damper must be installed at
each dryer duct.
IMPORTANT: NO more than four (4) dryers should be connected to one main common duct.
The main duct may be any shape or cross sectional area, so long as the minimum cross
section area is provided. The minimum cross section area for multiple dryer round or square
venting. These figures must be increased 10 square inches 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 twenty (20) feet) or has numerous elbows (more than two (2)) in it. In
calculating duct work size, the cross section area of a square or rectangular duct must be increased
twenty (20) percent for each additional twenty (20) feet. The diameter of a round exhaust must be
increased ten (10) percent for each additional twenty (20) feet. Each 90° elbow is equivalent to an
additional thirty (30) feet and each 45° elbow is equivalent to an additional fifteen (15) feet.
IMPORTANT: For extended duct work runs, the cross section area of the duct work can only be
increased to an extent. Maximum proportional duct work runs cannot exceed
twenty (20) feet more than the original limitations of twenty (20) feet with two
(2) elbows. When the duct work approaches the maximum limits as noted in this
manual, a professional HVAC firm should be consulted for proper venting
information.
IMPORTANT: Exhaust back pressure measured by a manometer at each dryer exhaust duct area
should not exceed 0.3 inches of water column.
The duct work 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 duct work joints must be taped to prevent moisture and
lint from escaping into the building. Inspection doors should be installed at strategic points in the
exhaust duct work for periodic inspection and clean –out of lint from the duct work.
NOTE: Where the exhaust passes through a wall, ceiling, or roof made of combustible
materials, the opening must be 2 –inches larger (all the way around) than the
duct. The duct must be centered within this opening.

INSTALLATION PROCEDURES
3-10
Outside Duct Work Protection
To protect the outside end of horizontal duct work from the weather, a 90° elbow bent
downward should be installed where the exhaust exits the building. If the exhaust duct work 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 nearest obstruction.
IMPORTANT: DO NOT use screens, louvers, or caps on the outside of opening of exhaust duct
work.