Alliance HD75ST Installation Manual

Drying Tumblers

Stack 75 Pound Capacity

Operation/Maintenance

Keep These Instructions for Future Reference.

(If this machine changes ownership, this manual must accompany machine.)

Part No. D0895

May 2008

i

Addendum A

Information in this manual is applicable to these models:

HD75ST

D0895

IMPORTANT NOTICES—PLEASE READ

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: 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.

- 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 thegas 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 YOUR SAFETY

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 1

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 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.

FIRE AND EXPLOSION WILL OCCUR. NEVER PUT FABRICS TREATED WITH THESE LIQUIDS
INTO THE DRYER. NEVER USE THESE LIQUIDS NEAR THE DRYER..

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 2

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.

ATTENTION: L’ACHETEUR DOIT PLACER L’AVERTISSEMENT
SUIVANT DANS UN ENDROIT CLAIR ET VISIBLE:

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 3

TABLE OF CONTENTS

PAGE

Important Notices..............................................................................................................1-3

Table of Contents ................................................................................................................. 4

Customer Service ................................................................................................................. 5

Warnings, Symbols ...........................................................................................................6-7

Rules for Safe Operation of Dryer ......................................................................................... 8

Energy Saving Tips ............................................................................................................... 8

Operating Instructions -Two Timer Models ........................................................................... 9

Service Savers.................................................................................................................... 10

Troubleshooting Charts ..................................................................................................11-14

Direct-Spark Ignition Operation .....................................................................................15-16

General Maintenance .......................................................................................................... 17

Basket Alignment (Double Motor Model) ........................................................................... 18

Shimming the Basket and Spider Assembly ......................................................................... 19

Air Switch Adjustment ........................................................................................................ 20

Fan Rotation....................................................................................................................... 21

(C) Copyright Alliance Laundry Systems LLC
All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or
by any means without the expressed written consent of the publisher.

Page 4

CUSTOMER SERVICE

If literature or replacement parts are required, contact the source from
which the machine was purchased or contact Alliance Laundry Systems
at [phone] for the name and address of the nearest authorized
parts distributor.

For technical assistance, call [phone].

Page 5

SYMBOLS

The following symbols are used in this manual and/or on the machine. The numbers between ()
refer to the numbers on the machine surveys.

Symbol Description Part/Measurement

NOTE!

Hot! Do Not Touch
Heib! Nicht Beruhren
Haute temperature! Ne pas toucher
Caliente! no tocar
Heet! Niet Aanraken

dangerous voltage
tension dangereuse
Gafahrliche elektrische Spannung
tension peligrosa

on
marche
Ein
conectado

off
arrêt
Aus
desconectado

start
demarrage
Start
arranque de un movimiento

emission of heat in general
êmission de chaleur en general
Warmeabgabe allgemein
emisión de calor

cooling
refroidissement
Kuhlen
enfriamiento

Page 6

SYMBOLS

The following symbols are used in this manual and/or on the machine.

Symbol Description

rotation in two directions
rotation dans les deux sens
Drehbewigung in zwei Richtungen
movimiento rotativo en los dos sentidos

direction of rotation
sens de mouvement continu de rotation
Drehbewegung in Pfeilrichtung
movimiento giratorio o rotatorio

en el sentido de la flecha

End of Cycle

caution
attention
Achtung
atencion; precaucion

Page 7

Rules for Safe Operation of Dryer

RULES FOR SAFE
OPERATION OF DRYER

1. Be sure your dryer is installed properly in accordance with the

recommended instructions.

2. CAUTION
Be safe—shut main electrical power supply and gas supply off

externally before attempting service.

3. CAUTION
Never use drycleaning solvents: gasoline, kerosene, or other flammable
liquids in the dryer.
Never put fabrics treated with these liquids into the dryer.
Never use these liquids near the dryer.
Always keep the lint screen clean.
Never use heat to dry items that contain plastic, foam or sponge rubber,

or rags coated with oils, waxes or paints. The heat may damage the
material or create a fire hazard. Rubber easily oxidizes, causing

excessive heat and possible fire.
Never dry the above items in the dryer.

4. Never let children play near or operate the dryer. Serious injury will
occur if a child should crawl inside and the dryer is turned on.

5. Never use dryer door opening and top as a step stool.

6. Read and follow manufacturer's instructions on packages of laundry
and cleaning aids. Heed any warnings or precautions.

7. Never tumble fiberglass materials in the dryer unless the labels say they
are machine dryable. Glass fibers break and can remain in the dryer and
could cause skin irritation if they become mixed into other fabrics.

8. The dryer must not be installed or stored in an area where it will

be exposed to water and/or weather.

Fire and explosion will occur.

ENERGY-SAVING TIPS

1. Install dryer so that you can use short, straight venting. Turned elbows
and long vent tubing tend to increase drying time. Longer drying time
means the use of more energy and higher operating costs.

2. Operate dryer using full-size loads. Very large loads use extra energy.
Very small loads waste energy.

3. Dry light-weight fabrics separately from heavy fabrics. You will use less
energy and get more even drying results by drying fabrics of similar
weight together.

4. Clean the lint screen area daily. A clean lint screen helps give faster, more
economical drying.

5. Do not open the dryer door while drying, you let warm air escape from
the dryer into the room.

6. Unload your dryer as soon as it stops. This saves having to re-start your
dryer to remove wrinkles.

Page 8

Operating Instructions—Two Timer Model

OPERATING
INSTRUCTIONS—
TWO TIMER MODEL

OPERATING INSTRUCTIONS—TWO TIMER MODEL

1. After loading the dryer with water washed clothes, close the
loading door.

2. Turn the 60 minute drying (heat) timer to the desired time. The
drying cycle light will be on.

3. Turn the 15 minute cooling (air) to the desired time. The
cooling light will come on after the drying finishes.

4. Select the temperature desired:

HIGH—185° (85° C) exhaust temperature, heavy fabrics
and hard to dry, (cottons and linens).

MEDIUM—150° (66° C) exhaust temperature, permanent
press, synthetic blends.

LOW—135° (58° C) exhaust temperature, delicate, sheer
fabrics.

5. Turn “on/off” toggle switch to “on” and press the “push to
start” button to start the drying and cooling cycles.

6. To shut the dryer off at any time during the cycles, switch the

“on/off” switch to “off”.

Page 9

Service Savers

TROUBLESHOOTING

DRYER WON’T START

DRYER WON’T HEAT

CLOTHES ARE NOT
SATISFACTORILY DRY

To help you troubleshoot the dryer, we list below the most common reasons
for service calls and some answers to the problems.

service, please review the following items:

DRYER WON’T START

1. Is the door completely closed?

2. Are the controls set to the “on” position?

3. Did you push the “start” control?

4. Check for low voltage.

DRYER WON’T HEAT

1. Is the dryer set for “cooling time” rather than “drying time”?

2. Is the gas valve in the dryer and the valve on the main gas line turned
on?

3. Is the spark unit sparking?

4. Check for low or intermittant gas pressure.

CLOTHES ARE NOT SATISFACTORILY DRY

1. Timed cycle—Did you allow enough heating time before the cool-
down part of the cycle?

2. Is the lint screen blocked?

3. Is the exhaust duct to the outside clean and not blocked? (A

blocked exhaust will cause slow drying and other problems.)

Before you call

GAS DRYER IGNITION

GAS DRYER IGNITION

Refer to Direct Ignition System Operation Section. Check to see if the
manual gas valve is open. Then reset the dryer controls. All panels,

covers, and doors must be in place and closed before starting the
dryer.

VERY IMPORTANT
When calling the factory for service, always refer to the
model number and serial number.

Page 10

Troubleshooting

TROUBLESHOOTING

CAUTION
To avoid electrical shock, shut off electrical supply before
servicing machine.

WARNING
To avoid burns, avoid contact with gas flames in the machine's
heating unit. On gas-fired dryers, shut off gas supply.

CAUTION
Be careful of moving mechanical parts such as gears, pulleys,
etc. while servicing dryer. Keep fingers and loose articles of
clothing free from moving mechanical parts to avoid injury.

IMPORTANT
Refer to Parts Manual for correct replacement parts.

Page 11

Troubleshooting Chart

Troubleshooting Chart

TROUBLE CAUSE REMEDY

Motors will not start.

Motor tripping on
thermal overload.

Basket motor will not
run.

Basket motor runs, but
basket will not revolve.

Dryer noisy or
vibrating.

No power.

Incorrect power.

Timer off.
Loose wire connection.
Start relay defective.
Low voltage.

Inadequate wiring.
Loose wire connections.
Inadequate air.
Poor housekeeping.
Loading door open.
Door switch out of adjustment.

Defective door switch.
Bad basket motor contactor.
V-Belt broken.
V-Belt loose.
Motor pulley loose.
Basket over-loaded.
Not leveled.

Fan out of balance.

Basket rubbing.
V-Belt sheaves.
Belt.
Foreign objects inside dryer.

Check fuses or circuit breakers. Main switch must be
on.
Check power source: voltage, phase, and frequency
must match rating plate on rear of dryer.
Set timer on control panel.
Check connections in junction box on rear of dryer.
Check coils and contacts.
Check voltage at motor terminals. Voltage must be
within 10% (plus or minus) of voltage on rating plate. If
not, consult local power company for corrective
measures.
Check if wire is correctly sized for load.
Check connections and correct if bad.
Check installation for recommended make-up air.
Clean lint accumulation around and on motor.
Close door after dryer is loaded with clothes.
Adjust switch by removing cover and bending the
actuator lever to clear switch button 3/8” with cover in
place.
Replace door switch.
Replace contactor.
Replace V-Belt.
Adjust belt tension.
Tighten set screw(s).
Lessen load.
Check Installation Manual for proper leveling
procedures.
Accidental damage to fan blades can change dynamic
balance. Replace damaged fan.
Adjust basket clearance.
Align sheaves and tighten set screws.
Adjust belt tension.
Occasionally screws, nails, etc., may hang in the basket
perforations and drag against the sweep sheets
surrounding the basket. Remove such objects immedi­ately.

Page 12

Troubleshooting Chart

Troubleshooting Chart

TROUBLE CAUSE REMEDY

Dryer runs, but no heat.

Incorrect voltage.
No voltage.

Direct spark ignition module
defective.
Defective gas valve.
Gas turned off.
Defective door switch.
Air switch not operating.

Air switch out of adjustment.
Air switch defective.
Gas pressure too low.

Improper orifice.

Electric power to heating unit
turned off.
Line fuse or heater circuit fuse
blown to unit.
Defective relay.
Defective electric elements.
Defective thermostat.
Defective safety overload
thermostat.

Check for correct control voltage - 120V.
Check power supply, check secondary voltage on
transformer and check wiring and wiring diagram.
Replace direct spark ignition module.

Replace coil assembly.
Turn manual gas valve on.
Replace door switch.
Clean out lint compartment daily. Check back draft
damper for foreign objects, lint accumulation or
other causes that may prevent damper from opening.
Check duct work for lint build-up. Check Installation
Manual to insure that duct work and make-up air
openings are adequately sized. Check exhaust outlet.
If a screen has been improperly installed on the
outlet, it may be clogged with lint or frozen over in
winter. NEVER install a screen on the exhaust outlet.
Vacuum within dryer drops to .09 inches of water
column, or less, for normal operation of dryer.
Vacuum reading (in inches of water) should range
between .15 and .3 inches. Vacuum reading can be
made with a vacuum U-gauge by removing a sheet
metal screw in the front panel of dryer and inserting
the rubber tube of the vacuum gauge into screw
opening.

Refer to Air Switch Adjustment Section.
Replace air switch.
Check manifold pressure and adjust to pressure
specified on rating plate. If this pressure cannot be
obtained, have gas supplier check main pressure.
Orifices have been sized for type of gas specified on
rating plate. Check with gas supplier to determine
specifications for gas being used. If different from
rating plate, contact factory and obtain proper
orifices.
Turn power on.

Replace fuse.

Replace relay.
Replace elements.
Replace thermostat.
Replace thermostat.

Page 13

Troubleshooting Chart

Troubleshooting Chart

TROUBLE CAUSE REMEDY

Main burners
burning improperly.

Low or high gas flame.

Dryer too hot.

Dryer doesn’t stop
properly.
Basket does not reverse.

Burner holes clogged.
Gas pressure too high.
Orifice too large.
Restricted or blocked exhaust.
Incorrect burner orifices.

Inadequate air flow.

Incorrect burner orifices.
Inadequate make-up air flow.
Lint accumulation.
Exhaust duct damper.
Gas pressure too high.
Exhaust system restricted or inad­equate sized ductwork.
Thermostat defective.
Timer defective.

Reversing timer.

Clean burner holes; blow out dirt.
Adjust per rating plate specification.
Check with factory for correct orifices.
Clean exhaust of lint or restrictions.
Check with factory for correct orifice size. Replace if
needed.
Clean air ducts.
Clean air make-up restrictions.
Clean burners and remove lint.
Check with factory for correct size, replace if needed.
Check air flow installation per Installation Manual.
Clean dryer of lint.
Must fully open or replace.
Adjust per rating plate specification.
Clean exhaust system; check installation instructions
for duct size recommendations.
Replace thermostat.
Replace timer.

Check timer; replace if defective.

Page 14

Direct-Spark Ignition Operation

DIRECT SPARK
IGNITION
OPERATION

NOTE: All HD dryers are equipped with the DSI (Direct Spark Ignition) modules.

These are designed to increase dryer efficiency and to reduce dryer
operating costs. The main burner is directly ignited from a spark electrode.
A burning flame provides an electrical path for a small amount of sensing
current to allow gas valve operation. If the main burner flame extinguishes
for any reason (aside from the thermostatic control) sensing current will
shut down the gas valve and the spark ignition circuit.

1 . Once flame is established, the spark shuts off, and the main burner flame is

then electronically monitored by means of a sensing spark probe which is
located over the burner. The gas valve remains energized (open).

2 . If no flame is detected within the first 11 seconds the DSI will

go into a safety “lock-out”. The gas valve is energized.

3 . If recovery from a safety lockout requires one of the following:

A. Opening the main door thus interrupting power to the DSI

module and allowing dryer diagnostic troubleshooting.

B. Disconnecting the entire dryer from a power source using a

circuit breaker of a switch.

4 . By closing the main door the ignition circuit will be restored for

another trial of the ignition circuit.

5. Once the thermostatic control has been satisfied by reaching a
pre-set temperature, or the drying timer has been timed out, the
ignition circuit will be de-energized, thus extinguishing the flames.

6 . The dryer will continue to run in a cool-down mode without heat. This

process will cool the load to the touch and help to eliminate wrinkling.

7 . The cool-down time is pre-set on some models and manually set

on other dryer models. The cool-down cycle prevents fabric
wrinkles by allowing clothes to reach room ambient temperature
while still in a continuous levitation state until clothes are ready
to be folded or pressed.

Page 15

DIRECT SPARK IGNITION OPERATION

The DSI module is powered by a 24 Volt AC supplid by a stem-down transformer in
series with eight safety interlocks:

A. Timer Switching Device (1)
B. Main Door and Lint Door Switches (2)
C. Sail Switch (1)
D. Under Basket and Burner Housing Thermal Safety Switches (2)
E. Variable Thermostat (1)
F. Push to Start Switch (1)

THERMOSTAT CALLS

FOR HEAT

YES

IGNITION CYCLE

BEGINS, GAS VALVE

ON

MAIN BURNER FLAME

DETECTED

YES

SPARK IGNITION OFF

FLAME MONITOR ON

GAS VALVE ON

FLAME IS LOST DUE
TO POWER OUTAGE,

DOOR OPEN

NO

CONTROL LOCK-OUT

RESET POWER

REQUIRES A MANUAL

RESET (Opening/closing

door, power switch ON/

OFF)

NO

FLAME IS ON UNTIL

THERMOSTAT OR

TIMER IS SATISFIED

Page 16

General Maintenance

GENERAL MAINTENANCE

1. Clean lint trap daily. Remove lint before or after each day of

operation. A clean lint trap will increase the efficiency of the dryer and
the moisture-laden air will be exhausted outside more quickly.

2. Keep basket and sweep sheets clean. Clean as often as needed. The

basket and sweep sheets are accessible by removing the front panel of
the dryer.

3. Gas burners. Check and clean often.

4. Pulleys and belts. Keep clean as oil and dirt will shorten the life of a

belt. Check periodically for alignment. Pulley shafts must be parallel
and the grooves must be aligned. Check belt tension periodically.
Adjust tension by movement of idler bracket. Lubricate idler pulley
once every two months using six grams of high temperature grease. Do
not over-grease.

5. Electric motor. Keep motor clean and dry. Motors are packed with

sufficient grease for 10 years normal service. After that, bearings and
housing should be cleaned and repacked one third full with Chevron
Grease No. SR1-2. See label on motor for further information.

6. Adjustable leveling bolts. One at each corner permits accurate

alignment of dryer.
To adjust: Block one corner of dryer up off the floor, loosen hex nut.
With wrench, turn bolt clockwise to raise dryer, opposite to lower.
Rear bolts are outside of dryer and front bolts are inside lint trap
compartment and behind lower left 5 x 7 panel.

7. Periodically clean and examine exhaust system.

8. Keep dryer area clean and free of gasoline, combustible materials and

other flammable liquids or vapors.

9. Do not obstruct the flow of combustion (make-up) air and ventilating

air.

10. Check gas pressure periodically.

11. Gear reducer. Maintain oil level at half the depth of oil cup. Change

oil every six months.

Page 17

Basket Alignment—Double Motor Model

BASKET ALIGNMENT—
DOUBLE MOTOR MODEL

1. Loosen the 4 gear reducer mounting bolts (1, 2, 3 and 4) on rear of
dryer, and 2 adjusting bolts #5, on gear reducer housing. Refer
to Figure 3.

2. Place one “A” and two “B” diameter pins inside the drying
compartment between the rim of the basket opening and the
rim of the door opening in the positions shown. Refer to Figure 1
and Figure 2. Check the two “B” pins for equal clearance.

3. With the pins in postions, tighten the two #5 bolts until flush
against back of dryer. Re-tighten gear reducer mounting bolts
in the numerical order indicated in Figure 3. Tighten lock nuts #6
to secure bolts #5 in position. Then remove pins.

4. Check the space between basket and door opening at “A” pin
and “B” pin positions. Refer to Figure 2. If the gap is not
approximately the same on both sides, repeat steps 1-3.

NOTE:
Use short sections of round steel rod for pins or drill bits may
be used in place of round rod.

Page 18

Shimming the Basket and Spider Assembly

SHIMMING THE BASKET
AND SPIDER ASSEMBLY

This procedure is normally necessary when replacing either the
basket or the spider assembly on any dryer tumbler. The alignment of
these two parts are crucial in assuring a true running basket.

1. Align the basket. Refer to Basket Alignment Section.

2. Rotate the basket to determine where the most out of round
point is (where the basket scraped or comes closest to scraping
the sweep sheet).

3. Mark this position and the nearest rib to this position.

4. Remove the basket (do not loosen the alignment bolts).

5. With the basket on the floor (spider up), place one or two
shims between the spider leg and the back of the basket at the
marked rib position. Refer to figure on this page.

6. Re-insert spider and basket assembly and re-check cylinder.

7. If the basket is still out of round, repeat procedure starting with
Step 2.

8. Upon completion of shimming process, re-alignment of
basket is necessary. Refer to Basket Alignment Section.

Page 19

Air Switch Adjustment

AIR SWITCH
ADJUSTMENT

1. Shut off current; disconnect leads and remove air switch.

2. Lay air switch assembly on flat surface. Adjust air blade at
“A” (Figure 1) so that air blade lies flat and surface “B” is
parallel to the flat surface.

3. Place 3/8” (10 mm) x 5/8” (16 mm) spacer bar or equivalent
“C” (Figure 2) under air blade in position shown; hold switch
mounting bracket firmly and adjust switch actuator “D” with
needle-nose pliers at “E” by twisting actuator right or left
whichever is needed so that switch closes when end of air
blade engages bar “C”.

4. Maximum opening of air switch must be no greater than
3/4” (20 mm) (Figure 3). Bend tab “F” in or out to maintain
this dimension.

5. Re-install air switch assembly on rear of dryer.

6. Re-check operation of air blade. Switch must close before air
blade engages face of opening and re-open before stop “F”
engages.

Page 20

FAN ROTATION NOTE

Fan rotates counter-clockwise as viewed from back end of
motor. See arrow on motor support. To change rotation,
reverse power leads L1 and L2.

Fan Rotation

Page 21