IPSO DR30 User manual

Shownwithmanual
double timer
controlsystem
Technicalspecifications
Installationinstructions
Operatinginstructions
Maintenance
OWNER'S MANUAL
30 lb. DR LAUNDRY DRYER
IPSO - USA
3101 South Haven Highway 77, Suite A
Panama City, FL, 32405
Phone: [phone]
THIS MANUAL MUST BE GIVEN TO THE EQUIPMENT OWNER
MAN DR2030 (ECN5652) 9/99 D0566
DR30
- USA

Page 2
IMPORTANTNOTICES—PLEASEREAD
For optimum efficiency and safety, we recommend that you read the manual before operating the equipment. Store
this manual in a file or binder and keep for future reference.
WARNING: Purchaser must post the following notice in a prominent location:
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 death.
- Do not store or use gasoline or other flammable vapors or 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.
WARNING: In the event the user smells gas odor, instructions on what to do must be posted in a
prominent location. This information can be obtained from the local gas supplier.
WARNING: Wear safety shoes to prevent injuries.
WARNING: Purchaser must post the following notice in a prominent location:
FOR YOURSAFETY
Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
WARNING: A clothes dryer produces combustible lint and should be exhausted outside the
building. The dryer and the area around the dryer should be kept free of lint.
WARNING: Be safe, before servicing machine, the main power should be shut off.

Page 3
ATTENTION:L’ACHETEUR DOIT PLACER L’AVERTISSEMENT
SUIVANT DANS UN ENDROIT CLAIR ET VISIBLE:
ATTENTION:L’ACHETEUR DOIT PLACER L’AVERTISSEMENT
SUIVANT DANS UN ENDROIT CLAIR ET VISIBLE:
AVERTISSEMENT. Assurez-vous de bien
suivre les instructions donnees dans cette
notice pour reduire au minimum le risque
d’incendie ou d’explosion ou pour eviter tuot
dommage materiel, toute blessure ou la mort.
__ Ne pas entreposer ni utiliser d’essence ni
d’autres vapeurs ou liquides inflammables dans
le voisinage de cet appareil ou de tout autre
apparell.
__ QUE FAIRE SI VOUS SENTEZ UNE
ODEUR DE GAZ:
•Ne pas tenter d’allumer d’apparell.
• Ne touchez a aucun interrupteur. Ne pas
vous servir des telephones se trouvant dans
le batiment ou vous vous trouvez.
• Evacuez la piece, le batiment ou la zone.
•Appelez immediatement 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 etre assures
par un installateur ou un service d’entretien
qualifie ou par le fournisseur de gaz.
POUR VOTRE SECURITE
Ne pas entreposer ni utiliser d’ essence
ni d’autres vapeurs ou liquides
inflammables dans le voisinage de cet
appareil ou de tout autre appareil.

Page 4
WARNING: To avoid fire hazard, do not dry articles containing foam rubber or similar texture materials.
Do not put into this dryer flammable items such as baby bed mattresses, throw rugs, undergarments
(brassieres, etc.) and other items which use rubber as padding or backing. Rubber easily oxidizes causing
excessive heat and possible fire. These items should be air dried.
WARNING: Synthetic solvent fumes from drycleaning machines create acids when drawn through the
dryer. These fumes cause rusting of painted parts, pitting of bright or plated parts, and completely
removes the zinc from galvanized parts, such as the tumbler basket. If drycleaning machines are in the
same area as the tumbler, the tumbler's make-up air must come from a source free of solvent fumes.
WARNING: Do not operate without guards in place.
WARNING: Check the lint trap often and clean as needed but at least a minimum of once per day.
WARNING: Alterations to equipment may not be carried out without consulting with the factory and
only by a qualified engineer or technician. Only Manufacturer’s parts may be used.
WARNING: Remove clothes from dryer as soon as it stops. This keeps wrinkles from setting in and
reduces the possibility of spontaneous combustion.
WARNING: Be Safe - shut main electrical power and gas supply off externally before attempting
service.
WARNING: Never use drycleaning solvents, gasoline, kerosene, or other flammable liquids in the dryer.
FIREAND EXPLOSION WILL OCCUR. NEVERPUT FABRICS TREATED WITHTHESE
LIQUIDSINTO THE DRYER. NEVERUSE THESE LIQUIDS NEARTHEDRYER..
WARNING: Do not place items exposed to cooking oils in your dryer. Items contaminated
with cooking oils may contribute to a chemical reaction that could cause a load to catch fire.
WARNING: Never let children play near or operate the dryer. Serious injury could occur if a child
should crawl inside and the dryer is turned on.
WARNING: Never tumble fiberglass materials in the dryer unless the labels say they are machine
dryable. Glass fibers break and can remain in the dryer. These fibers cause skin irritation if they
become mixed with other fabrics.
WARNING: Before operating gas ignition system - purge air from natural gas or propane gas lines
per manufacturer’s instructions.
WARNING: To reduce the risk of electric shock, disconnect this appliance from the power supply
before attempting any user maintenance other than cleaning the lint trap. Turning the controls to the
OFF position does not disconnect this appliance from the power supply.

Page 5
IPSO DRYER WARRANTY
IPSO warrants all new equipment (and the original parts thereof) to be free from defects in material or workmanship for
a period of two (2) years from the date of sale thereof to an original purchaser for use, except as hereinafter provided. With
respect to non-durable parts normally requiring replacement in less than two (2) years due to normal wear and tear, and with
respect to all new repair or replacement parts for IPSO equipment for which the two (2) year warranty period has expired,
or for all new repair or replacement parts for equipment other than IPSO equipment, the warranty period is limited to ninety
(90) days from date of sale. The warranty period on each new replacement part furnished by IPSO in fulfillment of the
warranty on new equipment or parts shall be for the unexpired portion of the original warranty period on the part replaced.
With respect to electric motors, coin meters and other accessories furnished with the new equipment, but not manufactured
by IPSO, the warranty is limited to that provided by the respective manufacturer.
IPSO’s total liability arising out of the manufacture and sale of new equipment and parts, whether under the warranty or
caused by IPSO’s negligence or otherwise, shall be limited to IPSO-USA repairing or replacing, at its option, any defective
equipment or part returned f.o.b. IPSO’s factory, transportation prepaid, within the applicable warranty period and found by
IPSOtohavebeen defective, and in no event shallIPSO beliablefor damages of any kind, whether foranyinjuryto persons
or property or for any special or consequential damages. The liability of IPSO does not include furnishing (or paying for)
any labor such as that required to service, remove or install; to diagnose troubles; to adjust, remove or replace defective
equipment or a part; nor does it include any responsibility for transportation expense which is involved therein.
The warranty of IPSO is contingent upon installation and use of its equipment under normal operating conditions. The
warranty is void on equipment or parts; that have been subjected to misuse, accident, or negligent damage; operated under
loads, pressures, speeds, electrical connections, plumbing, or conditions other than those specified by IPSO; operated or
repaired with other than genuine IPSO replacement parts; damaged by fire, flood, vandalism, or such other causes beyond
the control of IPSO; altered or repaired in any way that effects the reliability or detracts from its performance, or; which
have had the identification plate, or serial number, altered, defaced, or removed.
No defective equipment or part may be returned to IPSO for repair or replacement without prior written authorization from
IPSO. Charges for unauthorized repairs will not be accepted or paid by IPSO.
IPSO MAKES NO OTHER EXPRESSED OR IMPLIED WARRANTY, STATUTORY OR OTHERWISE,
CONCERNING THE EQUIPMENT OR PARTS INCLUDING, WITHOUT LIMITATION, A WARRANTY OF
FITNESS FOR A PARTICULAR PURPOSE, OR A WARRANTY OF MERCHANTABILITY. THE
WARRANTIES GIVEN ABOVE ARE EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED
OR IMPLIED. IPSO NEITHER ASSUMES, NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT, ANY
OTHER WARRANTY OR LIABILITY IN CONNECTION WITH THE MANUFACTURE, USE OR SALE OFITS
EQUIPMENT OR PARTS.
Forwarrantyservice,contactthe distributor from whom the IPSO equipmentorpartwaspurchased. If the distributor cannot
be reached, contact IPSO.
IDENTIFICATION NAMEPLATE
The identification nameplate is located on the rear wall of the dryer. It contains the dryer serial number, product number, model
number, electrical specifications and other important data that may be needed when servicing and ordering parts, wiring diagrams,
etc. Do not remove this nameplate.

Page 6
Contents
Safety Instructions .............................................................................. 2-4
Cissell Dryer Warranty ....................................................................... 5
Table of Contents ................................................................................ 6
Symbols ............................................................................................... 7
Unpacking / General Installation .......................................................8-9
Technical Data and Dimensions ......................................................... 10-11
Electric Connections ........................................................................... 12
Gas Connections ................................................................................. 13
Gas Piping Installation .......................................................................14-15
Gas service Installation Instructions ................................................ 16
Gas Pipe Size Chart ............................................................................ 17
Dryer Installation with Multiple Exhaust ...........................................18-19
Dryer Make-Up Air Requirements ...................................................... 20
Dryer Installation with Separate Exhaust ......................................... 21
Exhaust and Venting ........................................................................... 22
Rules for Safe Operation of Dryer ..................................................... 23
Direct-Spark Ignition Operation ......................................................... 24-25
General Maintenance ..........................................................................26-27
Operating Instruction for Double Timer ........................................... 28
PARTS .................................................................................................. 29-43
Front View ................................ 29
Front Panel Assembly .............31
Wire Box Assembly ................. 33
Lint Door Assembly ................35
Rear View ................................. 37
Basket Bearings/Sheave Assy 39
Idler Assembly .........................41
Gas Heating Unit Assembly ...43
Control Door Assembly ..........30
Thermostat Assembly .............32
Door Assembly ........................34
Basket & Spider Assembly ..... 36
Air Switch Assembly............... 38
Motor & Fan Assembly ........... 40
Rear Control Panel Assembly 42

Page 7
Rotation in two directions
Rotation dans les deux sens
Drehbewigung in zwei
Richtungen
Movimiento rotativo en los
dos sentidos
Caution
Attention
Achtung
Atencion; precaucion
Direction of rotation
Sens de mouvement continu
De rotation Drehbewegung
in Pfeilrichtung movimiento
Giratorio o rotatorio en el
sentido de la flecha
The following symbols are used in this manual and/or on the machine.
NOTE!
On
Marche
Ein
Conectado
Off
Arrêt
Aus
Desconectado
Hot! Do Not Touch
Heiß! Nicht Beruhren
Haute temperature! Ne pas toucher
Caliente! no tocar
Start
Demarrage
Start
Arranque de un movimiento
Emission of heat in general
Emission de chaleur en
general
Warmeabgabe allgemein
Emisión de calor
Cooling
Refroidissement
Kühlen
Enfriamiento
dangerous voltage
tension dangereuse
Gefährliche elektrische
Spannung
tension peligrosa End of Cycle
Description
Symbol
SYMBOLS
Symbol

Page 8
Unpacking/General Installation (All Dryers)
Uponarrivalof theequipment,any damage inshipmentshould be
reported to the carrier immediately.
Upon locating permanent location of a unit, care should be
taken in movement and placement of equipment.
See outline clearance diagrams for correct dimensions.
Remove all packing material such as: tape, manuals, skid,
etc
Leveling: Use spirit level on top of dryer. Adjust leveling
bolts on dryer (see adjustable leveling bolts in maintenance
section).
Check voltage and amperes on rating plate before
installing the dryer.
The construction of the dryers permit installation side-by-side to save
space or to provide a wall arrangement. Position dryer for the least
amount of exhaust piping and elbows, and allow free access to the
rear of dryer for future servicing of belts, pulleys and motors. The
installation clearance from all combustable material is 0" ceiling
clearance for the first 4" (102 mm)from the front of the dryer. After
the first 4" (102 mm), the ceiling clearance required is 6" (153 mm).
The rear clearance required is 0", and the side clearance is 1"
(26mm).
Before operating dryer, open basket door and remove
blocking between front panel and basket. Read the
instructiontags, owner’smanual,warnings, etc.
IMPORTANT
Openingtheclothesloadingdoordeactivatesthedoorswitch
toshutoffthemotors,fan,gas,steam,orelectricelement.To
restartthedryer,closethedoorandpressinthepushtostart
button.
IMPORTANT
This dryer is designed for a capacity maximum load.
Overloadingitwillresultinlongdryingtimesanddampspots
on some clothes.
IMPORTANT
Maximumoperatingefficiencyisdependentuponproperair
circulation.Thelintscreenmustbekeptcleandailytoensure
properaircirculationthroughoutthedryer.
IMPORTANT
Provideadequateclearanceforairopeningintothecombustion
chamber.
UNPACKING
GENERAL
INSTALLATION
(ALL DRYERS)

Page 9
Unpacking/General Installation (All Dryers)
The dryer is so designed that when an operator opens the dryer
door, the basket and exhaust fan stop. You can expect fast drying
from a laundry dryer. Hot, dry air is properly and effectively
movedthroughthe basketandexhausted throughalint traptothe
atmosphere. The dryer comes equipped with an inclined self-
cleaninglintscreen. Inthissystem,lintaccumulatesonthe
underside of the screen until a blanket of lint will fall from the
screen to the bottom of the dryer cabinet, and should be removed
daily or as required, to prevent an over-accumulation.
IMPORTANT
Provideadequateclearanceforairopeningsintothecombustion
chamber.
Permanent press, durable press and other modern day
fabrics require the care that your dryers now provide. At the end of
the drying cycle, a timed “Cool-Down” control automatically takes
overandcontinuestherotationof the fan and basket without heat
until the garment load reaches a safe cool temperature. This
function is performed at the end of each drying cycle.
Replacement parts for this dryer are available from your distributor
or by contracting the factory at the address or phone number printed
on the cover page of this manual.
GENERAL
INFORMATION
DRYER
“COOL-DOWN”
CYCLE
REPLACEMENT
PARTS

Page 10
30 lb. Dryer Dimensions - Standard Gas, Steam and Electric Heated
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Page 11
DR30 Dryer Dimensions - Gas
(Illustration)

Page 12
Electric connection
The connection needs to be made in the wiring box at the back. Remove the
coverplate (G) in order to reach the connection clamps.
The connection cable needs to be brought in through the opening (H) in the side of
the wiring box.
It is necessary to ground the dryer for your personal safety and to ensure a good
operation.
115 and 208-240 V - 1 ph
The mains wires (Ll) and (L2) should be connected to the 2 left clamps and the
yellow/green grounding wire (PE) should be connected to the grounding clamp.
208-240 and 480 V - 3 ph
The 3mainswires(L1),(L2)and(L3)should be connected to the 3 left clamps and
the yellow/green grounding wire (PE) should be connected to the grounding
clamp.
380-415V - 3 ph
The 3 mains wires (L1), (L2) and (L3) should be connected to the 3 left clamps,
the blue neutral (N) should be connected to the right clamp and the yellow/green
grounding wire (PE) should be connected to the grounding clamp.
Dryersmustbe electrically grounded by a separate #14 or larger green wire from the groundingterminal
within the Service Connection Box, to a cold water pipe. In all cases, the grounding method must comply
with local electrical code requirements; or in the absence of local codes, with the National Electrical
Code, ANSI/NFPA 70 or the Canadian Electrical Code, CA C22.1.
See wiring diagram furnished with dryer. Do not change wiring without consulting the factory, as you
may void the factory warranty. DO NOT CONNECT THE DRYER TO ANY VOLTAGE OR
CURRENT OTHER THAN THAT SPECIFIED ON THE DRYER RATING PLATE. (Wiring diagram
is located on rear wall of dryer.)
All panels must be in position before operation of dryer.
115 and 208-240 V - 1 ph
208-240 and 480 V - 3 ph
380-415V - 3 ph
N
L3
L2
L1
«Attention. Lors des opérations d’entretien
des commandes, ètiqueter tous les fils avant
de les dèconnecter. Toute erreur de câblage
peut être une source de danger et de panne»

Page 13
The gas supply pipe should be connected to the gas tap (I), which is on the right next
to the wiring box on the back.
It is important to have the connections done by a qualified technician, in order to
ensure that the installation is in accordance with the prevailing standards and
instructions.
The dryer should be connected to the type of gas indicated on the serial plate.
The use of too small gas pipes can result in insufficient gas supply, which can lead
to slow heat-up and poor drying quality.
Whenthedryerisusedincombinationwithaweighingplatform,thegassupplypipe
has to be made of flexible material to allow the weighing system to keep moving
freely.
I
It is important to work with the right gas pressure (see technical remarks) in order to
obtain a good ignition, heating and consequently a good operation in general.
After the gas supply has been connected, the gas tap in the dryer should be turned on
(clockwise).
Test all connections for possible leaks by means of a soap solution, but
never with a flame.
Gas connection
Electrical Controls Service
Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can
cause improper and dangerous operation.
Verify proper operation after servicing.

Page 14
Gas Piping Installation
1. The installation must conform with local codes, or in the
absence of local codes with the National Fuel Gas Code,
ANSI Z223.1 or the CAN/CGA-B149, Installation Codes.
2. Check Identification Nameplate for type of gas for
dryer.
3. Checkthe altitude of dryer.
4. Check with utilities company for proper gas
pressure and gas supply line.
5. Natural Gas Only—Check the gas pressure inlet
supply to dryer, 11 inches water column (27.4 mbar)
maximum.
Manifold Pressure—3.5 inches water column (8.8 mbar)
pressure.
6. L.P. Gas Only—Manifold pressure—13 inches water column
(32.4mbar)maximum.
CAUTION:Lowgaspressureandintermittentgaswillcause
gasignitionproblemsandinadequatedryingoflaundry.
GASPIPING
INSTALLATION

Page 15
Gas Piping Installation (Illustrations)
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 psi (.04 bar).
The dryer must be isolated from the gas supply piping system by closing its individual manual shutoff
valve during any pressure testing of the gas supply piping system at test pressures equal to or less
than 1/2 psi (.04 bar).

Page 16
The size of the gas service pipe is dependant upon many variables,
such as tees, lengths, etc. Specific pipe size should be obtained from
the gas supplier. Refer to the “Gas Pipe Size” chart in this manual for
general gas pipe size information.
CAUTION:Gaslooppipingmustbeinstalledasillustrated
tomaintainequalgaspressureforalldryersconnectedtoa
single gas service
Other gas-using appliances should be connected
upstream from the loop.
WARNING:
LIQUIFIED PETROLEUM GASES ONLY !
A gas pressure regulator for liquified petroleum gases is not
furnished on gas heated clothes dryers. This regulator is normally
furnished by the installer. In accordance with American Gas
Association (AGA) standards, a gas pressure regulator, when
installed indoors, must be equipped with a vent limiter or a vent line
must be installed from the gas pressure regulator vent to the outdoors.
Gas Service Installation Instructions
GASSERVICE
INSTALLATION
INSTRUCTIONS
GAS PRESSURE
REGULATOR FOR
LIQUIFIED
PETROLEUM GASES

Page 17
Gas Pipe Size Chart
TOTAL BTU/HR
(for LP Gas correct
total BTU/HR below by
multiplying by .6)
TOTAL
KCAL
HOUR
GAS PIPE SIZE FOR 1000 BTU (250 KCAL) NATURAL GAS
AT 7” W.C. (17.5MM) PRESSURE
In figuring total length of pipe, make allowance for tees and elbows.
(150 ft.)
45,72 m
(125 ft.)
38,1 m
(100 ft.)
30,48 m
(75 ft.)
22,86 m
(50 ft.)
15,24 m
(25 ft.)
7,62 m
60,000
80,000
100,000
120,000
140,000
160,000
180,000
200,000
300,000
400,000
500,000
600,000
700,000
800,000
900,000
1,000,000
1,100,000
1,200,000
1,300,000
1,400,000
1,500,000
1,600,000
1,700,000
1,800,000
1,900,000
2,000,000
2,200,000
2,400,000
2,600,000
2,800,000
3,000,000
3,200,000
3,400,000
3,600,000
3,800,000
4,000,000
15000
20000
25200
30200
35200
40300
45300
50400
75600
100800
126000
151200
176400
202000
230000
250000
270000
300000
330000
350000
380000
400000
430000
450000
480000
504000
550000
605000
650000
705000
750000
806000
850000
907000
960000
1000000
3/4
3/4
3/4
3/4
3/4
3/4
1
1
1
1 1/4
1 1/4
1 1/2
1 1/2
1 1/2
2
2
2
2
2
2
2
2
2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
3
3
3
3
3
3/4
3/4
3/4
1
1
1
1
1
1 1/4
1 1/4
1 1/2
1 1/2
2
2
2
2
2
2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
3
3
3
3
3
3
3 1/2
3 1/2
3 1/2
3 1/2
3/4
3/4
1
1
1
1
1
1 1/4
1 1/4
1 1/2
1 1/2
2
2
2
2
2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
3
3
3
3
3
3
3
3 1/2
3 1/2
3 1/2
3 1/2
3 1/2
3 1/2
3/4
1
1
1
1
1 1/4
1 1/4
1 1/4
1 1/2
1 1/2
2
2
2
2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
3
3
3
3
3
3
3
3 1/2
3 1/2
3 1/2
3 1/2
3 1/2
3 1/2
4
4
3/4
1
1
1
1
1 1/4
1 1/4
1 1/4
1 1/2
1 1/2
2
2
2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
3
3
3
3
3
3
3
3 1/2
3 1/2
3 1/2
3 1/2
3 1/2
3 1/2
4
4
4
4
3/4
1
1
1
1 1/4
1 1/4
1 1/4
1 1/2
1 1/2
2
2
2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
2 1/2
3
3
3
3
3
3
3
3 1/2
3 1/2
3 1/2
3 1/2
3 1/2
4
4
4
4
4
4

Page 18
Dryer Installation With Multiple Exhaust
For exhaust duct less than 14 feet (5 m) and 2 elbows
equivalent and less than 0.3 inches (8 mm) static pressure.
DRYER EXHAUSTS
Area of section “A-A” must be equal to the sum of dryer exhaust pipes
entering multiple exhaust pipe. (See chart below.)
DR30
No. of Dryers
Duct Diameter
(in inches)
(in cm)
1 2 3 4 5 6 7 8 9 101112131415161718192021222324
8 1214161820222324262728293031323334353637383940
20 30 25 41 46 51 56 58 61 66 68 71 7376 78 81 84 86 89 91 94 97 99100
_ _ _ _
_ _ _ _
_ _ _ _
_ _ _ _
_ _ _ _
_ _ _ _
Exhaust
Booster Fan
Power Supply
to Fan
RelayCoils
Start and Stop
Switches on
Dryers

Page 19
Dryer Installation with Multiple Exhaust
For exhaust duct more than 14 feet (5 m) and 2 elbows equivalent and more
than 0.3 inches (8 mm) static pressure.
1. Make-up air from outside the building may enter enclosure from top or
side walls. (See Dryer Make-Up Air Requirements Chart)
2. Use constant diameter duct with area equal to the sum of dryer duct areas.
EXAMPLE: Six 8 inch (204 mm) diameter ducts = one 19.6 inch
(498 mm) diameter duct in area. Use 20 inch (508 mm) diameter duct or
diameter to match tube-axial fan.
3. Enclosure (plenum) with service door. This separates the dryer air from
room comfort air. If dryers use room air instead of outside air, the heat
loss can be another 25 Btu/hr (6.3 kcal/hr) for each cubic foot per minute
(cfm) used.
4. The installation clearance from all combustible material is 0" ceiling
clearance for the first 4" (102 mm) from the front of the dryer. After the
first 4" (102 mm), the ceiling clearance required is 6" (153 mm). the rear
clearance required is 0", and the side clearance is 1" (26 mm).
5. Heat loss into laundry room from dryer fronts only is about 60 Btu/hr per
square foot (15 kcal/hr per 0.1m²).
6. Flange mounted, belt driven tube-axial fan. Fan must run when one or more
dryers are running. See suggested Automatic Electrical Control Wiring
Diagram on previous page. Must meet local electrical codes. Fan air
flow (cfm or m³/min.) is equal to the sum of dryer air flows, but static
pressure (SP) is dependent on length of pipe and number of elbows.
7. Barometric Bypass Damper—Adjust to closed flutter position with all
dryers and exhaust fan running. Must be located within enclosure.
CAUTION: Never install hot water heaters or other gas appliances in
the same room as dryers. Never install cooling exhaust fans in the same
room as dryers.
CAUTION: Never exhaust dryers with other types of equipment.
DRYERINSTALLATION
WITH MULTIPLE
EXHAUST

Page 20
Suggested Minimum Dryer Make-up Air Requirements
Dryer Dryer Pocket Maximum Air Flow Duct Size For Required Make-up
Model Capacity Rate per Pocket Service Connection Air Area per Pocket
lb kg cfm m3/h inch mm sq. in. cm2
C 30 30 13.6 700 1190 8 203 135 871
C 30 E/S 30 13.6 400 680 6 153 77 497
C 30 ST 30 13.6 450 765 6 153 87 561
C 50 50 22.7 800 1360 8 203 154 994
C 50 E/S 50 22.7 450 765 6 153 87 561
C 75 75 34 1000 1700 8 203 192 1239
C 75 E/S 75 34 536 911 6 153 103 665
C 75 ST 75 34 1000 1700 12 305 192 1239
HD80 80 36.3 1465 2490 10 254 282 1819
C 110 110 50 2200 3740 12 305 422 2723
C 110 E/S 110 50 850 1445 8 203 163 1052
C 125 125 56.7 2000 3400 12 305 384 2477
C 150 150 68 2250 3825 12 305 432 2787
HD175 175 79.4 2780 4726 12 305 534 3445
HD190 190 86.2 3000 5100 12 305 576 3716
WMC/HD20 20 9.1 450 765 6 153 87 561
WMC/HD30 30 13.6 625 1063 8 203 120 774
WMC/HD50 50 22.7 700 1190 8 203 135 871
WMC/HD75 75 34 750 1275 8 203 144 929
Notes:
1) The Model C 30 ST has 2 pockets per dryer, each pocket has the above listed characteristics;
each pocket is exhausted separately with a 6" (153mm) duct.
2) The Model C 75 ST has 2 pockets per dryer, each pocket has the above listed characteristics;
both pockets have one 8" (203mm) exhaust manifolded into one 12" (305mm) exhaust duct for
exhaust connection.
3) For the C 30 ST and the C 75 ST Models, the Required Make-up Air Area shown in the table
should be doubled since it is shown per pocket,only.
4) E/S indicates an Energy Saving Model.