REMARQUE : Le guide
est rédigé en anglais et
en français. La version
francaise figure à la
suite de la version
anglaise.
Installation/Operation
Dryers
Electric and Gas Models
Keep These Instructions for Future Reference.
(If this machine changes ownership, this manual must accompany machine.)
www.comlaundry.com
Part No. 513257
April 2009
IMPORTANT: Purchaser must consult the local gas supplier for suggested instructions to be followed if the
• 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
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. Keep this manual for future reference. If this machine changes ownership,
this manual must accompany machine.
W755
WARNING
• Installation of unit must be performed by a qualified installer.
• Install clothes dryer according to manufacturer’s instructions and local codes.
• DO NOT install a clothes dryer with flexible plastic venting materials. If flexible metal (foil
type) duct is installed, it must be of a specific type identified by the appliance manufacturer
as suitable for use with clothes dryers. Refer to section on connecting exhaust system.
Flexible venting materials are known to collapse, be easily crushed, and trap lint. These
conditions will obstruct clothes dryer airflow and increase the risk of fire.
W729R1
WARNING
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any other appliance.
W053
unit user smells gas. The gas utility instructions plus the SAFETY and WARNING note directly above must
be posted in a prominent location near the unit for customer use.
Indicates an imminently hazardous
situation that, if not avoided, will cause
severe personal injury or death.
DANGER
Indicates a hazardous situation that, if not
avoided, could cause severe personal
injury or death.
WARNING
Indicates a hazardous situation that, if not
avoided, may cause minor or moderate
personal injury or property damage.
CAUTION
To reduce the risk of fire, electric shock,
or injury to persons when using your
dryer, follow these basic precautions:
W034
WARNING
Explanation of Safety Messages
Throughout this manual and on machine decals, you
will find precautionary statements (“DANGER,”
“WARNING,” and “CAUTION”) followed by specific
instructions. These precautions are intended for the
personal safety of the operator, user, servicer, and
those maintaining the machine.
Important Safety Instructions
Save These Instructions
1. Read all instructions before using the dryer.
2. Refer to the GROUNDING INSTRUCTIONS in
the INSTALLATION manual for the proper
grounding of the dryer.
3. Do not dry articles that have been previously
cleaned in, washed in, soaked in, or spotted with
gasoline, dry-cleaning solvents, other flammable
or explosive substances as they give off vapors
that could ignite or explode.
4. Do not allow children to play on or in the dryer.
Close supervision of children is necessary when
the dryer is used near children. This is a safety
rule for all appliances.
Additional precautionary statements (“IMPORTANT”
and “NOTE”) are followed by specific instructions.
IMPORTANT: The word “IMPORTANT” is used
to inform the reader of specific procedures where
minor machine damage will occur if the procedure
is not followed.
NOTE: The word “NOTE” is used to communicate
installation, operation, maintenance or servicing
information that is important but not hazard
related.
5. Before the dryer is removed from service or
discarded, remove the door to the drying
compartment.
6. Do not reach into the dryer if the cylinder is
revolving.
7. Do not install or store the dryer where it will be
exposed to water and/or weather.
8. Do not tamper with the controls.
9. Do not repair or replace any part of the dryer, or
attempt any servicing unless specifically
recommended in the user-maintenance
instructions or in published user-repair
instructions that you understand and have the
skills to carry out.
10. Do not use fabric softeners or products to
eliminate static unless recommended by the
manufacturer of the fabric softener or product.
11. To reduce the risk of fire, DO NOT DRY plastics
or articles containing foam rubber or similarly
textured rubberlike materials.
12. ALWAYS clean the lint filter after every load. A
layer of lint in the filter reduces drying efficiency
and prolongs drying time.
13. Keep area around the exhaust opening and
adjacent surrounding area free from the
accumulation of lint, dust and dirt.
14. The interior of the dryer and the exhaust duct
should be cleaned periodically by qualified
service personnel.
15. If not installed, operated and maintained in
accordance with the manufacturer’s instructions
or if there is damage to or mishandling of this
product’s components, use of this product could
expose you to substances in the fuel or from fuel
combustion which can cause death or serious
illness and which are known to the State of
California to cause cancer, birth defects or other
reproductive harm.
16. Dryer will not operate with the loading door
open. DO NOT bypass the door safety switch by
permitting the dryer to operate with the door
open. The dryer will stop tumbling when the door
is opened. Do not use the dryer if it does not stop
tumbling when the door is opened or starts
tumbling without pressing the START
mechanism. Remove the dryer from use and call
the service person.
17. Do not put articles soiled with vegetable or
cooking oil in the dryer, as these oils may not be
removed during washing. Due to the remaining
oil, the fabric may catch on fire by itself.
18. To reduce the risk of fire, DO NOT put clothes
which have traces of any flammable substances
such as machine oil, flammable chemicals,
thinner, etc., or anything containing wax or
chemicals such as in mops and cleaning cloths, or
anything dry-cleaned at home with a drycleaning solvent in the dryer.
23. Remove laundry immediately after the dryer
stops.
24. Always read and follow manufacturer’s
instructions on packages of laundry and cleaning
aids. Heed all warnings or precautions. To reduce
the risk of poisoning or chemical burns, keep
them out of reach of children at all times
(preferably in a locked cabinet).
25. Do not tumble fiberglass curtains and draperies
unless the label says it can be done. If they are
dried, wipe out the cylinder with a damp cloth to
remove particles of fiberglass.
26. ALWAYS follow the fabric care instructions
supplied by the garment manufacturer.
27. Never operate the dryer with any guards and/or
panels removed.
28. DO NOT operate the dryer with missing or
broken parts.
29. DO NOT bypass any safety devices.
30. DO NOT operate dryers if the units have been
separated.
31. Failure to install, maintain, and/or operate this
machine according to the manufacturer’s
instructions may result in conditions which can
produce bodily injury and/or property damage.
IMPORTANT: Solvent vapors from dry-cleaning
machines create acids when drawn through the
heater of the drying unit. These acids are corrosive
to the dryer as well as to the laundry load being
dried. Be sure make-up air is free of solvent vapors.
IMPORTANT: Have your dryer installed properly.
Don’t do it yourself unless you know how!
19. Use the dryer only for its intended purpose,
drying clothes.
20. Always disconnect the electrical power to the
dryer before attempting service. Disconnect the
power cord by grasping the plug, not the cord.
21. If supply cord is damaged, it must be replaced by
a special cord or assembly available from the
manufacturer or its service agent.
22. Install this dryer according to the
INSTALLATION INSTRUCTIONS. All
connections for electrical power, grounding and
gas supply must comply with local codes and be
made by licensed personnel when required. Do
not do it yourself unless you know how!
NOTE: The WARNING and IMPORTANT
SAFETY INSTRUCTIONS appearing in this
manual are not meant to cover all possible
conditions and situations that may occur. Common
sense, caution and care must be exercised when
installing, maintaining, or operating the dryer.
Always contact your dealer, distributor, service agent
or the manufacturer about any problems or conditions
you do not understand.
513257
Installation
17.8 cm
(7 in.)
*194.3 cm (76.5 in.)
*113.8 cm (44.8 in.)
20.3 cm
(8 in.)
10.2 cm
(4 in.)
ELECTRIC MODELS
11.4 cm
(4.5 in.)
39.4 cm (15.5 in.)
39.2 cm
(15.44 in.)
**93.8 cm (36.94 in.)
68.3 cm
(26.9 in.)
71.1 cm
(28.0 in.)
59.7 cm
(23.5 in.)
DRY2365N
17.8 cm
(7 in.)
*194.3 cm (76.5 in.)
*113.8 cm (44.8 in.)
59.7 cm
(23.5 in.)
10.2 cm
(4 in.)
68.3 cm (26.9 in.)
71.1 cm
(28.0 in.)
GAS MODELS
20.3 cm
(8 in.)
1
11.4 cm
(4.5 in.)
39.4 cm (15.5 in.)
39.2 cm
(15.44 in.)
*93.8 cm (36.94 in.)
110.5 cm (43.5 in.)
Dimensions
*With leveling legs turned into base.NOTE: Not all models have windows.
DRY2364N
*With leveling legs turned into base.NOTE: Not all models have windows.
13/8 in. N.P.T. Gas Connection
NOTE: Side, rear and bottom exhaust openings are
10.2 cm (4 in.) ducting. Gas models cannot be
vented out left side of cabinet because of burner
housing.
IMPORTANT: The dryer should have sufficient
clearance around it for needed ventilation and for
the ease of installation and servicing. For maximum
drying performance, we recommend that more
clearance be allowed around the dryer than the
clearances that are listed throughout this manual.
DRY2365N
5
Installation
1
2
3
4
5
Any disassembly requiring the use of
tools must be performed by a suitably
qualified service person.
W299
WARNING
Before You Start
Tools
For most installations, the basic tools you will need
are:
Torx security screws are available (as optional
equipment at extra cost) for securing both lower access
panels to each dryer base. Order Part No. 62853.
A Torx bit, Part No. 282P4, is available (as optional
equipment at extra cost) for installing the Torx security
screws.
A Torx bit holder, Part No. 24161, is available (as
optional equipment at extra cost) to be used with the
Torx bit.
Figure 1
NOTE: An 20.32 cm (8 in.) coin drawer is required
for coin operated models.
ADryer Sides0 cm (0 in.)
BDryer Top (Rear 24 in.)30.5 cm (12 in.)
CDryer Rear10.2 cm (4 in.)
DDryer Top (Front 4 in.)1.3 cm (0.5 in.)
EExhaust Duct from Combustible Construction5.1 cm (2 in.)
Step 1: Position and Level the Dryer
Install dryer before washer. This allows room for
attaching exhaust duct.
Install the four rubber feet (in accessories bag).
Select a location with a solid floor. Dryers installed in
residential garages must be elevated 46 cm (18 inches)
above the floor.
Installation
No other fuel burning appliance should be installed in
the same closet with the dryer.
The dryer unit must not be installed or stored in an
area where it will be exposed to water and/or weather.
The dryer needs sufficient clearance and an adequate
air supply for proper operation and ventilation, and for
easier installation and servicing. (Minimum clearances
are shown in Figure 2).
To reduce the risk of fire and combustion
gas accumulation the dryer MUST be
exhausted to the outdoors.
W604
To reduce the risk of fire and the
accumulation of combustion gases, DO
NOT exhaust dryer air into a window well,
gas vent, chimney or enclosed, unventilated
area, such as an attic, wall, ceiling, crawl
space under a building or concealed space
of a building.
W045
WARNING
This gas appliance contains or produces a
chemical or chemicals which can cause
death or serious illness and which are
known to the State of California to cause
cancer, birth defects, or other reproductive
harm. To reduce the risk from substances in
the fuel or from fuel combustion, make sure
this appliance is installed, operated, and
maintained according to the instructions in
this manual.
W115
To reduce the risk of fire, DO NOT use
plastic or thin foil ducting to exhaust the
dryer.
W354
To reduce the risk of fire, the exhaust duct
and weather hood MUST be fabricated of a
material that will not support combustion.
Rigid or flexible metal pipe is recommended
for a clothes dryer.
W048
WARNING
Place the dryer in position, and adjust the legs until the
dryer is level from side to side and front to back.
Leveling legs can be adjusted from inside the dryer
with a 1/4 in. driver. All four legs must rest firmly on
the floor so the weight of the dryer is evenly
distributed. The dryer must not rock.
DRY2366N
1Dryer Base
2Level
3Leveling Leg
4Rubber Foot
Step 2: Connect Dryer Unit Exhaust
System
Figure 3
IMPORTANT: In mobile home installations, gas
dryers MUST be permanently attached to the floor
at the time of installation. Order No. 526P3 Hold
Down Kit (available at extra cost) for a
manufactured (mobile) home installation. Follow
the instructions supplied with the kit.
Installation of unit must conform to the Manufactured
Home Construction and Safety Standards, Title 24
CF4, Part 32-80 or Standard CAN/CSA-Z240 MH.
IMPORTANT: Unless completely assembled, DO
NOT slide the dryer unit across the floor. DO NOT
slide the unit once the leveling legs have been
extended, as the legs and the base could become
damaged.
To reduce the risk of fire due to increased
static pressure, we do not recommend
installation of in-line secondary lint filters
or lint collectors. If secondary systems
are mandated, frequently clean the
system to assure safe operation.
W749
WARNING
DRY2
DON’TDO
collectors will cause increased static pressure.
Failure to maintain the secondary lint system will
decrease dryer efficiency and may void machine
warranty.
DO NOT use plastic or thin foil ducting. Rigid
metal duct is recommended.
Installation
Install backdraft dampers in multi-dryer
installations.
In mobile home installations, dryer exhaust duct
must be secured to mobile home structure.
Dryer exhaust duct MUST NOT terminate under
mobile home.
Dryer exhausts 220 cfm (measured at back of
dryer).
DO NOT install flexible duct in concealed
spaces, such as a wall or ceiling.
Static pressure in exhaust duct should not be
greater than 1.5 cm water column (.6 inches),
measured with manometer placed on exhaust
duct 61 cm (two feet) from dryer (check with
dryer running and no load). In multi-dryer
installations, all dryers connected to the main
collector duct should be operating when pressure
is checked.
Exhausting dryer in hard-to-reach locations can
be done by installing 521P3 Flexible Metal Vent
Kit (available as optional equipment at extra
cost).
DRY2367N
DRY2367NDRY2368N
Figure 4
Locate dryer so exhaust duct is as short as
possible.
Be certain old ducts are cleaned before installing
your new dryer.
Use 102 mm (4 inch) diameter rigid or flexible
metal duct.
The male end of each section of duct must point
away from the dryer.
Use as few elbows as possible.
Use duct tape or pop-rivets on all duct joints. DO
NOT use sheet metal screws or fasteners on
exhaust pipe joints which extend into the duct
and catch lint.
Sufficient make-up air must be supplied to
replace the air exhausted by the dryer. The free
area of any opening for outside air must be at
2
least 260 cm
(40 in2).
Energy efficient buildings with low air
infiltration rates should be equipped with an air
exchanger that can accommodate on demand
make-up air needs in the laundry room. These
devices can be obtained through your building
contractor or building material suppliers.
Do not draw make-up air from a room containing
a gas fired water heater, a dry cleaner or a hair
salon.
Failure to exhaust dryer properly will void
warranty.
NOTE: Venting materials are not supplied with the
dryer (obtain locally).
IMPORTANT: DO NOT block the airflow at the
bottom of the dryer’s front panel with laundry,
rugs, etc. Blockage will decrease airflow through
the dryer, thus reducing the efficiency of the dryer.
Ductwork that runs through unheated areas must
be insulated to help reduce condensation and lint
build-up on pipe walls.
The dryer can be exhausted to the outdoors through the
back, left, right or bottom of the dryer. EXCEPTION:
Gas dryers cannot be vented out the left side
because of the burner housing.
Dryer is shipped from factory ready for rear exhaust.
Exhausting the dryer through sides or bottom can be
accomplished by installing a Directional Exhaust Kit,
528P3 (available as optional equipment at extra cost).
Number of
90° Elbows
RecommendedUse Only for Short Run installations
Exhaust System
For best drying results, recommended maximum
length of exhaust system is shown in Table 1.
To prevent backdraft when dryer is not in operation,
outer end of exhaust pipe must have a weather hood
with hinged dampers (obtain locally).
NOTE: Weather hood should be installed at least
30.5 cm (12 inches) above the ground. Larger
clearances may be necessary for installations where
heavy snowfall can occur.
Weather Hood Type
Maximum length of 10.2 cm (4 in.) diameter rigid metal duct.
019.8 m (65 feet)16.8 m (55 feet)
116.8 m (55 feet)14.3 m (47 feet)
214.3 m (47 feet)12.5 m (41 feet)
311.0 m (36 feet)9.1 m (30 feet)
48.5 m (28 feet)6.7 m (22 feet)
NOTE: Deduct 1.8 m (6 feet) for each additional elbow.
Table 1
NOTE: The maximum length of a 10.2 cm (4 in.)
diameter flexible metal duct must not exceed 2.4 m
(7.87 ft.), as required to meet UL2158, clause
To reduce the risk of fire and the
accumulation of combustion gases, DO NOT
exhaust dryer air into a window well, gas
vent, chimney or enclosed, unventilated
area, such as an attic, wall, ceiling, crawl
space under a building or concealed space
of a building.
W045
WARNING
1NOTE: Where the exhaust duct pierces a
combustible wall or ceiling, the opening must be
sized per local codes.
2Wall
H318I
3Clearance per Local Codes
4No Screen or Cap
5Clean Out Cover – Inspect Monthly
.
Figure 6
H319I
1Roof
2Wall
35 cm (2 in.) Minimum
4NOTE: Where the exhaust duct pierces a
combustible wall or ceiling, an opening must
be sized as shown or per local codes.
To reduce the risk of gas leaks, fire or
explosion:
• Each dryer must be connected to the type
of gas as shown on nameplate located in
the door recess.
• Use a new flexible stainless steel
connector.
• Use pipe joint compound insoluble in L.P.
(Liquefied Petroleum) Gas, or Teflon tape,
on all pipe threads.
• Purge air and sediment from gas supply
line before connecting it to a dryer. Before
tightening the connection, purge
remaining air from gas line to each dryer
until odor of gas is detected. This step is
required to prevent gas valve
contamination.
• Do not use an open flame to check for gas
leaks. Use a non-corrosive leak detection
fluid.
• Any disassembly requiring the use of
tools must be performed by a suitably
qualified service person.
W315
WARNING
Duct Station
A10.2 cm (4 inches)
B20.3 cm (8 inches)
C22.9 cm (9 inches)
D25.4 cm (10 inches)
E27.9 cm (11 inches)
F30.5 cm (12 inches)
G32.6 cm (13 inches)
H35.6 cm (14 inches)
I38.1 cm (15 inches)
J38.1 cm (15 inches)
K40.6 cm (16 inches)
Minimum Diameter of
Collector Duct
A Backdraft Damper, Part No. 58786 (obtain locally),
should be installed in a 10.2 cm (4 inch) diameter
VERTICAL duct system. This will prevent a backdraft
when dryer is not in use, and will keep the exhaust air
in balance within the central exhaust system.
Step 3: (Gas Dryer Only) Connect Gas
Supply Pipe
1. Make certain your dryer is equipped for use with
the type of gas in your laundry room. Dryer is
equipped at the factory for Natural Gas with a
3/8 inch NPT gas connection.
NOTE: The gas service to a gas dryer must
conform with the local codes and ordinances, or in
the absence of local codes and ordinances, with the
latest edition of the National Fuel Gas Code ANSI
Z223.1/NFPA 54 or the CAN/CSA-B149.1 Natural
Gas and Propane Installation Code.
3
Natural Gas, 37.3 MJ/m
(1000 Btu/ft3), service must
be supplied at minimum 5.0 inch water column
pressure to maximum 10.5 inch water column
pressure.
For proper operation at altitudes above 610 m
(2000 feet) the natural gas valve spud orifice size must
be reduced to ensure complete combustion. Refer to
Table 2.
NOTE: DO NOT connect the dryer to L.P. Gas
Service without converting the gas valve. Install
L.P. Gas Conversion Kit 458P3 (available at extra
cost).
Step 4: Reverse Door, if Desired
NOTE: Doors with windows cannot be reversed.
The door on this dryer is completely reversible. To
reverse door proceed as follows:
1. Remove four hinge attaching screws.
Figure 9
2. Remove all nine screws.
Figure 8
4. Tighten all connections securely. Turn on gas and
check all pipe connections (internal & external)
for gas leaks with a non-corrosive leak detection
fluid.
NOTE: The dryer and its appliance main gas valve
must be disconnected from the gas supply piping
system during any pressure testing of that system
at test pressures in excess of 3.45 kPa (1/2 lb./in.
2
).
Refer to Step 8 (Check Heat Source).
Figure 10
L.P. (Liquefied Petroleum) Gas, 93.1 MJ/m
(2500 Btu/ft
inch water column pressure.
3
), service must be supplied at 10 ± 1.5
3
For proper operation at altitudes above 1070 m
(3500 feet) the L.P. gas valve spud orifice size must be
reduced to ensure complete combustion. Refer to
Table 3.
To reduce the risk of fire, electric shock,
serious injury or death, all wiring and
grounding MUST conform with the latest
edition of the National Electrical Code,
ANSI/NFPA 70, or the Canadian Electrical
Code, CSA C22.1, and such local
regulations as might apply. It is the
customer’s responsibility to have the wiring
and fuses installed by a qualified electrician
to make sure adequate electrical power is
available to the dryer.
W521
WARNING
1
2
3
4
Step 5: Wipe Out Inside of Dryer
Before using dryer for the first time, use an all-purpose
cleaner, or a detergent and water solution, and a damp
cloth to remove shipping dust from inside dryer drum.
D604I
Figure 18
Step 6: Connect Unit to Electrical Power
Electric Dryers
(120/240 Volt, 60 Hertz, 3-Wire and Ground
Installation)
(120/208 Volt, 60 Hertz, 3-Wire and Ground
Installation)
NOTE: The wiring diagram is located behind the
control panel, inside the control cabinet.
The dryer must be connected to a grounded metal,
permanent wiring system; or an equipment-grounding
conductor must be run with the circuit conductors and
connected to the equipment-grounding terminal or
lead on the dryer.
IMPORTANT: DO NOT connect ground wire to
neutral terminal.
Only flexible metal conduit, rigid metal conduit or
armored cable wiring systems are recommended.
Refer to Figure 19 for terminal block connections
Electrical service for the dryer should be of maximum
rated voltage (208 or 240 Volt, depending on heating
element), listed on nameplate with a 60 Amp circuit
breaker or time delay fuse. Do not connect dryer to
110, 115 or 120 Volt circuit.
NOTE: Branch circuit wire size requirements are
shown in Table 4 .
Wire LengthWire
Less than 15 ft. (4.5m)Listed No.8 AWG
Copper wire only
Longer than 15 ft. (4.5m)Listed No.6 AWG
Copper wire only
Table 4
513257
Gas Dryers
To reduce the risk of fire, electric shock or
personal injury, all wiring and grounding
to the dryer unit MUST conform with the
local codes, or in the absence of local
codes, with the latest edition of the
National Electrical Code ANSI/NFPA 70 or
the Canadian Electrical Code, CSA C22.1,
and such local regulations as might
apply. It is the customer’s responsibility
to have the wiring and fuses checked by a
qualified electrician to make sure the
laundry room has adequate electrical
power to operate the dryer unit.
W084
WARNING
This dryer is equipped with a three-prong
(grounding) plug for your protection
against shock hazard and should be
plugged directly into a properly grounded
three-prong receptacle. Do not cut or
remove the grounding prong from this
plug.
W036
WARNING
D739I
1
2
3
4
5
STANDARD 120 VOLT, 60 HERTZ,
3-WIRE EFFECTIVELY GROUNDED CIRCUIT
115 ± 12
V.A.C.
115 ± 12
V.A.C.
0
V.A.C.
DO NOT
OVERLOAD
CIRCUITS
To reduce the risk of an electric shock or
fire, DO NOT use an extension cord or an
adapter to connect the dryer unit to the
electrical power source.
W152
WARNING
(120 Volt, 60 Hertz, With 3-Prong Grounding
Plug)
NOTE: The wiring diagram is located behind the
control panel, inside the control cabinet.
The electric service must be a separate branch,
polarized, three-wire, effectively grounded, 120
Volt, 60 Hertz, AC (alternating current) circuit
protected by a 20 Ampere fuse, equivalent
fusetron or circuit breaker.
The three-prong grounding plug on the power
cord should be plugged directly into a polarized
three-slot effectively grounded receptacle rated
120 Volts AC (alternating current) 20 Amps.
Refer to Figure 20 to determine correct polarity
of the wall receptacle.
Installation
D739I
1L1
2Ground
3Neutral
4Round Grounding Prong
5Neutral Side
Figure 20
NOTE: A qualified electrician should check the
polarity of the wall receptacles. If a voltage reading
is measured other than that illustrated, the
qualified electrician should correct the problem.
DO NOT OPERATE OTHER APPLIANCES
ON THE SAME CIRCUIT WHEN THIS
APPLIANCE IS OPERATING. DO NOT
OVERLOAD CIRCUITS! Refer to Figure 21.