TABLE OF CONTENTS
WELCOME TO TODAY’S GENERATION
OF COMFORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
FURNACE COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL FURNACE SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
IMPORTANT FACTS (DO’S AND DON’TS) . . . . . . . . . . . . . . . . . 3
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
BEFORE STARTING YOUR FURNACE . . . . . . . . . . . . . . . . . . . . . 4
STARTING YOUR FURNACE . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,4
Steps for Starting Your Furnace . . . . . . . . . . . . . . . . . . . . . . . . . 4
SHUTTING DOWN YOUR FURNACE . . . . . . . . . . . . . . . . . . . . 5,6
PERFORMING ROUTINE MAINTENANCE . . . . . . . . . . . . . . . . . 6
Filtering Out Trouble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
COMBUSTION AREA AND VENT SYSTEM . . . . . . . . . . . . . . . 6,7
BEFORE YOU REQUEST A SERVICE CALL . . . . . . . . . . . . . . 7,8
REGULAR DEALER MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . 8
INSTALLATION DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
WELCOME TO
TODAY’S
GENERATION OF
COMFORT
Congratulations! Your new, higher efficiency gas furnace is a
sound investment which will reward you and your family
with years of warm memories winter after winter.
Not only is your new furnace energy efficient, it is also extremely reliable. Spend just a few minutes with this booklet
to learn about the operation of your new furnace—and the
small amount of maintenance it takes to keep it operating at
peak efficiency. Years went into the development of your new
furnace. Take a little time now to assure its most efficient
operation for years to come.
FURNACE
COMPONENTS
(Furnace shown in upflow position; may be used in
downflow or horizontal orientation or applications. Vent
Elbow may be turned to a different position, depending
on type of installation)
GENERAL FURNACE SAFETY
1. Combustible Materials, Gasoline Warning . . . . . . . . . . . . . . . . . 1
2. Furnace Must be Kept Free and Clear of Insulating
Material Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Furnace Needs Air for Combustion and
Ventilation Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. Starting (Lighting) and Shutting Down the
Furnace Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4,5
5. Draft Safeguard Switch Caution . . . . . . . . . . . . . . . . . . . . . . . . . 8
6. Proper Furnace Shutdown Procedures . . . . . . . . . . . . . . . . . . . . 5
7. Flood Damage Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
8. Fire or Explosion Hazard Warning . . . . . . . . . . . . . . . . . . . . . . . 1
9. Carbon Monoxide Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
10. Service and Maintenance Electrical Hazard Warning. . . . . . . . . 6
11. Improper Vent Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
12. Sharp Edges Caution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
13. No Filter Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
14. Filter Rod Modification Caution. . . . . . . . . . . . . . . . . . . . . . . . . 6
15. Dirt, Rust, or Accumulation Caution . . . . . . . . . . . . . . . . . . . . . 7
2
IMPORTANT FACTS
(DO’s and DO NOT’S)
•DO: READ AND UNDERSTAND
THIS MANUAL.
•DO: Have your furnace and vent system inspected annually by a qualified
service technician.
•DO: Inspect your filter monthly and
clean or replace when needed.
•DO: Provide adequate airflow to the
furnace for efficient combustion and
safe ventilation.
•DO: Keep your furnace free and clear
of insulating material. Some materials
may be combustible. Examine the furnace area when the furnace is installed
or when insulation is added.
•DO NOT: Enclose your furnace in an
airtight room or seal it behind solid
doors.
•DO NOT: Keep combustible materials, gasoline, and other flammable liquids or vapors around your furnace.
•DO NOT: Cover your furnace in any
manner.
•DO NOT: Store anything (including
trash or debris) near your furnace.
•DO NOT: In any way block or restrict
airflow around your furnace.
•DO NOT: In any way block or restrict
airflow to your supply air and return air
grills.
•DO NOT: Use your furnace room as a
broom closet or a place to store any
kind of chemical or cleaner.
•DO NOT: Contaminate the air used for
combustion of your furnace with any
kind of chemical or fumes. This could
also cause heat exchangers, metal vent
systems or components to deteriorate.
NOTE: These chemicals or fumes are
present in many products around the
home, such as: water softener salts, any
type of household cleaning product,
any type of laundry product, adhesives,
paints, varnishes, paint strippers,
waxes and plastics, etc.
During remodeling be sure the combustion air is fresh and uncontaminated. If these compounds are burned
in your furnace, the heat exchangers
and metal vent system may deteriorate.
NOTE: The qualified installer or
agency must use only factoryauthorized re-placement parts, kits,
and accessories when modifying or
repairing this product.
This furnace contains safety devices
which must be manually reset. If the furnace is left unattended for an extended
period of time, have it checked periodically for proper operation. This precaution will prevent problems associated
with no heat, such as frozen water pipes,
etc. See “Before You Request a Service
Call’’ section in this manual.
SAFETY
CONSIDERATIONS
Installing and servicing heating equipment can be hazardous due to gas and
electrical components. Only trained
and qualified personnel should install,
3
repair, or service heating equipment.
Untrained personnel can perform basic maintenance functions such as
cleaning or replacing air filters. All
other operations must be performed
by trained service personnel. Observe
safety precautions in this manual, on
tags, and on labels attached to the furnace and other safety precautions that
may apply.
Recognize safety information: This is
the safety-alert symbol
see this symbol on the furnace and in
instructions or manuals, be alert to the
potential for personal injury.
Understand the signal words—DANGER, WARNING, and CAUTION.
These words are used with the
safety-alert symbol. DANGER identifies the most serious hazards which
result in severe personal injury or
death. WARNING signifies hazards
which
could result in personal injury or
death. CAUTION is used to identify
unsafe practices which
minor personal injury or product and
property damage. NOTE is used to
highlight suggestions which will result
in enhanced installation, reliability or
operation.
!
would result in
3
. When you
will
!
WARNING
Do not keep combustible materials, gasoline, and other flammable liquids or vapors
around your furnace.
!
WARNING
Fire Hazard! Failure to keep insulation clear of furnace could
result in fire, personal injury,
or death.
BEFORE STARTING
YOUR FURNACE
Examine the furnace installation to
determine that:
1. All flue gas carrying areas external
to the furnace (i.e. chimney, vent
connector) are clear and free of
obstructions.
2. The vent connector is in place,
slopes upward and is physically
sound without holes or excessive
corrosion.
3. The return-air duct connection(s) is
physically sound, is sealed to the
furnace casing, and terminates
outside the space containing the
furnace.
4. The physical support of the furnace
is sound without sagging cracks,
gaps, etc. around the base.
5. There are no obvious signs of
deterioration of the furnace.
6. The pilot and burner flames are in
good adjustment (by comparison
with pictorial sketches or drawings
of the main burner flame and, if
applicable, the pilot burner flame).
STARTING YOUR
FURNACE
Your furnace uses an automatic hot surface ignition system to light the burners
each time the thermostat signals the
furnace to start.
tant safeguards:
• Never attempt to manually light the
burners with a match or other source of
flame.
Follow these impor-
4
4.
ON
• Read and follow the operating instructions on the inside of main furnace
door, especially the item that reads as
follows:
“Wait 5 minutes to clear out any gas.
Then smell for gas, including near the
floor. If you smell gas,
STOP! Follow
“B’’ in the safety information above on
this label. If you don’t smell gas, go to
the next step.”
• If a suspected malfunction occurs
with your gas control system, such as
the burners do not light when they
should, refer to the shutdown procedures on the inside of main furnace
door, or in the next section, to turn off
your system, then call your dealer as
soon as possible.
!
WARNING
Should the gas supply fail to
shut off or if overheating occurs, shut off the gas valve to
the furnace before shutting off
the electrical supply. A failure
to follow this warning could result in a fire or explosion, and
personal injury or death.
•
CHECK AIR FILTER: Before at-
tempting to start your furnace, be sure
the filter is clean and in place. (See the
maintenance section of this manual.)
Do not run the furnace without a filter
in place. Then proceed as follows:
®
C
L
O
S
E
Remove outer door by loosing the
thumbscrew and pulling the door
forward. (See Fig. 8)
5. Turn the control switch to
OFF and
wait 5 minutes to clear out any gas.
(See Fig. 9) Then smell for gas, including near the floor. If you smell
gas,
STOP! Follow “B” on Furnace
label. If you don’t smell gas, go to
next step.
6. After waiting 5 minutes, if you still
smell gas,
STOP! Follow the safety
information on the cover of this
1
manual. If you do not smell gas, go to
the next step.
7. Turn the control switch to
(See Fig. 10)
8. Replace the outer door and tighten
the thumbscrew. (See Fig. 11)
9. Turn
the electrical supply to
the furnace. (See Fig. 12)
10. Open the external manual gas
valve. (See Fig 13)
11. Set the room thermostat to a tem-
6
perature slightly above the room
temperature. This will automatically signal the furnace to start. The
inducer motor will start, and the hot
surface igniter will have an orange
glow.
7
OFF
ON
ON.
OR
9
STEPS FOR STARTING
YOUR FURNACE
1. Set your room thermostat to the
lowest temperature setting. (See
Fig. 5)
2.
Close the external manual gas
valve. (See Fig. 6)
3. Turn
OFF electrical supply to fur-
nace. (See Fig. 7)
2
5
3
8
4
10
12. After about 32 seconds, the gas
valve permits gas to flow to the
main burners where it is ignited.
Hot flames begin to warm the furnace’s heat exchanger. After a time
delay of 25 sec, (45 sec for low
stage on 2 stage furnaces) the furnace blower is switched on.
11
12
if burners fail to ignite, the system will
lockout. If lockout occurs, or the
blower doesn’t come on—shut down
your furnace and call your dealer for
service.
13. Set your thermostat to the temperature that satisfies your comfort requirements. SUGGESTION:
Setting the thermostat back a few
degrees—and compensating for the
difference with warmer clothing—
can make a big difference in your
fuel consumption on extremely
cold days. The few degrees at the
top of your thermostat “comfort
level’’ are the most costly degrees
to obtain.
When the room temperature drops
below the temperature selected on
the thermostat, the furnace will be
switched on automatically. When the
room temperature reaches the degree
selected on the thermostat, the furnace
will be switched off automatically.
Continuous Fan -Some thermostats
have a “fan’’ mode with 2 selections:
AUTO or ON. When set on AUTO, the
furnace blower cycles on and off, controlled by the thermostat. In the ON
position, the furnace blower runs continuously except for a 42-62 sec delay
at the “call for heat.’’ Continuous fan
keeps the temperature level in your
home more evenly balanced. It also
continuously filters the indoor air.
FanOn PLUS™ -On all but the
310AAV or 310JAV, the blower
speed can be increased or decreased if desired due to change of
seasons, large gatherings in your
home, etc. Simply change your
“FAN” switch from “on” to “off”
(or “auto” depending on your thermostat), and then return to “on.”
The blower will switch to the next
highest speed. There are at least 3
speeds to choose from. If the blower is
running on its highest speed, a request
to change will direct the blower to return to its lowest speed.
the lowest temperature setting.
(See Fig. 14.)
2.
Close the external manual gas
valve. (See Fig. 6 on page 4.)
3. Turn
4.
5. Turn the control switch on the gas
OFF the electrical supply to
your furnace. (See Fig. 15.)
Remove the outer door on your fur-
nace. (See Fig. 8.)
valve to the
Fig. 9.
OFF position. (See
14
15
13
NOTE: If the main burners fail to ig-
nite, the furnace control system will go
through 3 more ignition cycles. Then,
SHUTTING DOWN
YOUR FURNACE
Should you ever suspect a malfunction
in your furnace, you will need to turn
the furnace off. The following procedures must be followed:
1. Set your room thermostat to
5
16
!
!
6. Replace the outer door. (See Fig.
11.)
7. If the furnace is being shut down
because of a malfunction,
call your
dealer as soon as possible.
PERFORMING
ROUTINE
MAINTENANCE
With the proper maintenance and care,
your furnace will operate economically
and dependably. Basic maintenance,
which can easily be accomplished by
someone who follows the directions, is
found on this and the following pages.
However, before beginning maintenance, follow these safety precautions:
!
WARNING
Turn off electrical power supply to your furnace before removing the access doors to
service or perform maintenance. A failure to follow this
warning could result in personal injury or death.
!
CAUTION
Although special care has
been taken to minimize sharp
edges, be extremely careful
when handling parts or reaching into the furnace.
FILTERING OUT
TROUBLE
Never operate your furnace
without a filter in place. Doing
so may damage the furnace
blower motor. An accumulation of dust and lint on internal
parts of your furnace can
cause a loss of efficiency.
A dirty filter will cause excessive stress
on the furnace blower motor and can
cause it to overheat and automatically
shut down. The furnace filter should be
checked every 4 weeks or so and
cleaned or replaced if necessary.
If installed with factory specified disposable media filter, check or replace
filter before each heating and cooling
season. Replace disposable media filter
at least twice a year.
If your furnace filter needs replacing, be
.
!
CAUTION
sure to use the same size and type of filter that was originally specified The
air
filter may be located in the filter cabinet
attached to the side or bottom of the
furnace.
If air filter has been installed in another
location, contact your dealer for instructions. To inspect, clean, and/or replace
the air filter(s), follow these steps:
1. Turn off electrical supply to furnace (See Fig. 7.)
2. Remove filter cabinet door (See
Fig. 18 and 19.)
NOTE: It may be necessary to re-
move 1 thumbscrew
3. Slide air filter out of filter cabinet.
Keep dirty side up (if dirty) to avoid
spilling dirt. (See Fig. 20 and 21.)
4. Inspect the filter. If torn, replace it.
NOTE: If a washable filter has been re-
placed by:
a) Factory specified disposable media
filter – Do not clean. If dirty, replace only
with media filter having the same part
number and size. Install with airflow direction arrow pointing towards blower.
b) Electronic air cleaner (EAC) – Refer to EAC Owner’s Manual for maintenance information.
5. Wash filter (if dirty) in sink, bathtub, or outside with a garden hose.
Always use cold tap water. A mild
liquid detergent may be used if necessary. Spray water through filter in
the opposite direction of airflow.
Allow filter to dry.
6. Reinstall clean air filter.
7. Replace filter cabinet door. (See
Fig. 22 and 23.)
8. Turn on electrical supply to furnace
(See Fig. 12.)
FILTER QUANTITY
FURNACE
CASING
WIDTH
14-1/2 (1) 16 x 25 (1) 14 x 25 1” thick,
17-1/2 (1) 16 x 25 (1) 16 x 25 1” thick,
21 (1) 16 x 25 (1) 20 x 25 1” thick,
24 (1) 16 x 25 (1) 24 x 25 1” thick,
* Recommended ** Some furnaces may have 2 filters
Filters may be field modified by cutting filter material
AND SIZE **
SIDE
RETURN
BOTTOM
RETURN
FILTER
TYPE *
cleanable or
4-5/16” thick
media-type
cleanable or
4-5/16” thick
media-type
cleanable or
4-5/16” thick
media-type
cleanable or
4-5/16” thick
media-type
and support rods (3) in filters. Alternate sizes and additional filters may be ordered from your dealer.
!
CAUTION
Use care when cutting support
rods in filters to protect
against flying pieces and
sharp rod ends. Wear safety
glasses, gloves, and appropriate protective clothing. Failure
to follow this caution could result in personal injury.
COMBUSTION AREA
AND VENT SYSTEM
WARNING
For proper and safe operation
the furnace needs air for combustion and ventilation. Do not
block or obstruct air openings
on the furnace, air openings to
the area in which the furnace is
installed, and the space around
the furnace.
WARNING
If holes are found—or if the
vent pipe is obstructed or is
not connected—toxic fumes
can escape into your home. DO
NOT OPERATE YOUR FURNACE. Call your dealer for service. A failure to follow this
warning could result in personal injury or death.
Inspect the combustion area and vent
system before each heating season. An
accumulation of dirt, soot, or rust can
mean a loss of efficiency and improper
performance. Buildups on the main
burners can cause faulty firing. This
“delayed ignition’’ is characterized by
an alarmingly loud sound.
NOTE: If your furnace makes a loud
noise when the main burners are ignited, shut down the furnace—call
your servicing dealer.
Use your flashlight and follow these
steps for inspecting the combustion
area and vent system of your furnace:
1. Turn off the electrical supply to the
furnace and remove the access
door. (See Fig. 7 and 8.)
2. Carefully inspect the gas burner
(See Fig. 17) for dirt, rust, or scale.
6
Then inspect the elbow, flue
connection area, and the vent pipe
for rust.
17
!
CAUTION
If dirt, rust, soot, or scale accumulations are found, call your
servicing dealer. DO NOT
OPERATE THE FURNACE.
3. Inspect the vent pipe for a sag,
holes, or a disconnection. A horizontal vent pipe must slope upward
away from furnace. If rusty joints
or seams, or signs of water leakages
are found, call your dealer for
service.
4. Restore electrical power to the furnace. (See Fig. 12.)
5. Start the furnace and observe its
operation. If possible, watch the
burner flames. Are they burning
bright blue? If not (or if you suspect
some other malfunction), call your
servicing dealer.
6. Replace access door. (See Fig. 11.)
18
19
20
21
23
BEFORE YOU REQUEST
A “SERVICE CALL”
BEFORE YOU CALL FOR
SERVICE, CHECK FOR SEVERAL
EASILY SOLVED PROBLEMS:
• Check for sufficient airflow. Check
the air filter for dirt. Check for blocked
return-air or supply-air grilles. Be sure
they are open and unobstructed. If this
isn’t the case, call your servicing
dealer.
If your furnace isn’t operating at all,
check the following list for easily
solved problems:
• Is your thermostat set above room
temperature? Is the HEAT mode
selected?
• Is the electrical power supply switch
ON? Is the blower access door firmly
in place? Are any fuses blown? (There
is a fuse on the furnace control board.)
Has a circuit breaker tripped?
• Is the manual shutoff valve in the gas
supply pipe leading to the furnace
open? Does the lever point in the same
direction that the pipe runs (open)? Or
is it at right angles (closed)?
NOTE:
next checks, turn OFF the electrical
power supply to the furnace. Remove
the access door.
• Is the switch on the gas valve turned
to the ON position? If this or the preceding check shows an interruption in
the gas supply, make sure the gas has
not been shut off for safety reasons. If
nothing else seems to be wrong, follow
the startup procedures found on pages
4 and 5 of this booklet.
Before proceeding with the
22
7
!
CAUTION
If for some reason the vent is
blocked, the draft safeguard
switch will shut off the furnace. (See page 2 for switch
location.) The switch will automatically reset after the furnace cools off. If the furnace
fails to operate, contact a
qualified service agency.
• Check the manual-reset limit
switches located on the ends of the
burner enclosure (See Fig. 2). If the furnace has experienced a high-temperature condition, due to inadequate
combustion air, these switches will
shut off the furnace. Reset the switches
by pushing the button on the switch. If
the switch trips a second time, turn off
the furnace and call for service.
• If your furnace still fails to operate,
call your servicing dealer for troubleshooting and repairs. Tell your dealer
the model and serial numbers for your
furnace. (You should have them recorded on page 8 of this booklet.) By
knowing exactly which furnace you
have, the dealer may be able to offer
suggestions over the phone, or save
valuable time through knowledgeable
preparation for the service call.
REGULAR DEALER
MAINTENANCE
In addition to the type of routine maintenance you might be willing to do,
your furnace should be inspected
regularly by a properly trained service
technician. An annual inspection (or
biennial inspection, at least) should
include the following:
1. Inspection of all flue gas passages—including the burners, heat
exchanger, inducer, elbow, and vent
pipe.
2. Inspection of all combustion
and ventilation air passages and
openings.
3. Close check of all gas pipes
leading to (and inside of) your
furnace.
4. Inspection and cleaning of the
blower motor and wheel.
5. Routine inspection and cleaning/
replacement of the air filter.
6. Inspection of all supply- and
return-air ducts for obstructions,
air leaks, and insulation. Any problems found should be resolved at
this time.
7. Inspection of furnace installation
for proper support and any obvious deterioration of the furnace.
The support must be sound and
without sags, gaps, cracks, etc.,
around the furnace base so as to
provide an air seal between the
return-air duct and furnace.
8. A check for loose connections
attaching individual components.
Inspection of all electrical wiring
and their connections.
9. Operational check of the furnace
itself to determine working condition. Repair or adjustment should
be made at this time.
Ask your servicing dealer for
further details about an economical
service contract that covers seasonal
inspections.
INSTALLATION DATA
Date Installed
Dealer Name
Address
City
State/Province Zip/Postal Code
Telephone
FURNACE
Product No.
Model No.
Serial No.
AIR CONDITIONER OR HEAT PUMP
OUTDOOR UNIT:
Product No.
Model No.
Serial No.
INDOOR COIL:
Product No.
Model No.
Serial No.
© 2002 Bryant Heating & Cooling Systems, 7310 W. Morris St. Indpls., IN 46231 PRINTED IN U.S.A. Catalog No. 5331-008 11-02
8
Replaces OMO5-35 OM05-41
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