Bryant Furnace 340MAV User Manual

USER’S INFORMATION MANUAL  
MODEL 340MAV, 350MAV, 352MAV,  
355MAV CONDENSING GAS  
FURNACE  
USER: Please read all instructions in  
the manual and retain all manuals for  
future reference.  
NOTE TO INSTALLER:  
This manual must be left with the equipment user.  
!
WARNING:  
FIRE OR EXPLOSION HAZARD  
Failure to follow safety warnings exactly could  
result in serious injury, death, or property damage.  
— 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.  
• Leave the building immediately.  
• 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.  
Do not use this furnace if any part has been  
under water. A ood-damaged furnace is  
extremely dangerous. Attempts to use the  
furnace can result in fire or explosion. A  
qualified service agency should be contacted  
to inspect the furnace and to replace all gas  
controls, control system parts, electrical  
parts that have been wet or the furnace if  
deemed necessary.  
!
WARNING:  
Carbon Monoxide is invisible, odorless, and toxic!  
Bryant Heating and Cooling Systems recommends  
a carbon monoxide alarm in your home, even if  
you do not own a gas appliance. Locate the carbon  
monoxide alarm in the living area of your home  
and away from gas appliances and doorways to at-  
tached garages. Follow the alarm manufacturer’s  
instruction included with the alarm.  
 
FURNACE COMPONENTS  
17  
3
1
Combustion-air intake connection to ensure  
contaminant-free air (right or left side).  
2
1
2
3
Burner sight glass for viewing burner flame.  
12  
18  
4
Burner assembly (inside). Operates with energy-  
saving inshot burners and hot surface igniter for safe,  
dependable heating.  
5
5
4
Redundant gas valve. Safe and efficient. Features 1 gas  
control with 2 internal shutoff valves. Valve appearance  
varies with furnace model.  
11  
16  
6
14  
15  
5
6
Vent outlet. Uses PVC pipe to carry flue gas from  
the furnace’s combustion system (right or left side).  
9
13  
7
Inducer motor. Pulls hot flue gases through the heat  
exchangers, maintaining negative pressure for added  
safety.  
10  
8
19  
7
8
9
Blower access panel safety interlock switch.  
Air filter and retainer.  
Condensate drain connection. Collects moisture  
condensed from burned gases for disposal into home  
drain system. (Location in furnace varies.)  
MODELS 340MAV, 350MAV,  
AND 352MAV FURNACES  
(UPFLOW POSITION)  
10  
11  
Heavy-duty blower. Circulates air across the heat  
exchangers to transfer heat into the home.  
3
Secondary condensing heat exchanger (inside).  
Wrings out more heat through condensation.  
Constructed with polypropylene-laminated steel to  
ensure durability.  
17  
3
2
12  
Primary serpentine heat exchanger (inside).  
Stretches fuel dollars with the S-shaped heat-flow  
design. Solid construction of corrosion-resistant  
aluminized steel means reliability.  
12  
1
4
18  
13  
14  
Furnace control board.  
6
5
3-amp fuse provides electrical and component  
protection.  
5
11  
15  
Light emitting diode (LED) on furnace control board.  
Code light is for diagnosing furnace operation and  
service requirements.  
15  
14  
13  
16  
17  
18  
19  
Pressure switch(es) ensure adequate flow of flue  
gas through furnace and out vent system.  
7
19  
16  
9
8
Rollout switch (manual reset) to prevent  
overtemperature.  
10  
Junction box for 115-v electrical power supply. (May be  
located on right or left side)  
Transformer (24v) behind furnace control board pro-  
vides low-voltage power to furnace control board and  
thermostat.  
MODEL 355MAV  
FURNACE (UPFLOW POSITION)  
4
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SAFETY  
BEFORE STARTING  
YOUR FURNACE  
Examine the furnace installation to  
determine that:  
CONSIDERATIONS  
Recognize safety information. This is  
!
the safety-alert symbol  
. When you  
see this symbol on the furnace and in  
instructions or manuals, be alert to the  
potential for personal injury.  
1. All ue gas carrying areas external  
to the furnace (i.e. chimney, vent  
connector) are clear and free of  
obstructions.  
Understand the signal words DANGER,  
WARNING, CAUTION and NOTE.  
DANGER, WARNING and CAUTION  
are used with the safety-alert symbol.  
DANGER identies the most serious  
hazards which will result in severe per-  
sonal injury or death. WARNING signi-  
es hazards which could result in  
personal injury or death. CAUTION is  
used to identify unsafe practices which  
would result in minor personal injury or  
product and property damage. NOTE is  
used to highlight suggestions which will  
resultinenhancedinstallation, reliability,  
or operation.  
2. The vent connector is in place,  
slopes upward and is physically  
sound without holes or excessive  
corrosion.  
6
Do not cover the furnace, store trash  
or debris near it, or in any way block  
the ow of fresh air to the unit.  
3. The return-air duct connection(s)  
is physically sound, is sealed to the  
furnace casing, and terminates  
outside the space containing the  
furnace.  
A furnace installed in an attic or  
other insulated space must be kept  
free and clear of insulating material.  
Examine the furnace area when the  
furnace is installed or when insulation  
is added. Some insulation materials  
may be combustible.  
4. The physical support of the furnace  
is sound without sagging cracks,  
gaps, etc. around the base.  
This furnace contains SAFETY  
5. There are no obvious signs of dete-  
rioration of the furnace.  
DEVICES which must be MANU-  
ALLY RESET. If the furnace is left un-  
attended 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  
Callsection in this manual.  
To minimize the possibility of serious  
personal injury, re, damage to  
your furnace, or improper operation,  
carefully follow these safety rules:  
6. The pilot and burner ames are in  
good adjustment (by comparison  
with pictorial sketches or drawings  
of the main burner ame and, if  
applicable, the pilot burner ame).  
Your gas furnace uses air from  
outside the home for combustion  
and vents ue gas to the outdoors. It is  
not to be installed using in-house air.  
The vent and air-intake pipes must ter-  
minate outside the structure and must  
not be obstructed in any way. Do not  
block or obstruct air openings on fur-  
nace or spaces around the furnace.  
STARTING AND  
SHUTTING DOWN  
YOUR FURNACE  
Instead of a continuously burning pilot  
ame which wastes valuable energy,  
your furnace uses an automatic, hot  
surface ignition system to light the  
burners each time the thermostat  
starts your furnace. Follow these  
important safeguards:  
!
WARNING  
Fire Hazard! Failure to keep in-  
sulation clear of furnace could  
result in fire, personal injury/  
death or property damage.  
!
WARNING  
Do not keep combustible ma-  
terials, gasoline, and other  
flammable liquids or vapors  
around your furnace. Failure  
to follow this warning could re-  
sult in fire, personal injury/  
death or property damage.  
!
WARNING  
For proper and safe operation  
the furnace needs air for com-  
bustion and ventilation. Do not  
block or obstruct the openings  
on the furnace, air openings to  
the area in which the furnace is  
installed, and the space  
around the furnace. Failure to  
follow this warning could re-  
sult in fire, personal injury/  
death or property damage.  
7
Never attempt to manually light the  
burners with a match or other source of  
ame.  
Read and follow the operating  
instructions on inside of main furnace  
door, especially the item that reads as  
follows:  
5
Keep the area around your furnace  
clear and free of combustible materi-  
als, gasoline, and other ammable liq-  
uids and vapors.  
Wait 5 minutes to clear out any gas.  
Then smell for gas, including near  
4
 
the oor. If you smell gas, STOP!  
Follow Bin the safety information  
above on this furnace label. If you  
dont smell gas, go to the next step.  
or  
If a suspected malfunction occurs  
with your gas control system, such as  
the burners not lighting when they  
should, refer to the shutdown proce-  
dures on inside of main furnace door,  
or in the Shutting Down Your Fur-  
nacesection and call your dealer as  
soon as possible.  
For 340MAV and 350MAV  
13  
!
WARNING  
10  
If overheating occurs or the  
gas valve fails to shut off the  
gas supply, turn off the exter-  
nal manual gas valve to the  
furnace BEFORE turning off  
the electrical supply. (See Fig.  
9.) Failure to follow this warn-  
ing could result in a fire or ex-  
plosion, and personal injury/  
death or property damage.  
2. Close the external manual gas  
valve. (See Fig. 9.)  
3. Turn OFF electrical supply to the  
furnace. (See Fig. 10.)  
4. Remove main furnace door. (See  
Fig. 11.)  
5. The gas valve will have a control  
switch to turn OFF or ON. Turn  
control switch on the gas control to  
the OFF position and wait 5 min-  
utes. (See Fig. 12 or 13.) Then  
smell for gas, including near the  
oor. If you smell gas, STOP! Fol-  
low Bon furnace label. If you  
dont smell gas, go to next step.  
For 352MAV and 355MAV  
14  
CHECK AIR FILTER: Before  
attempting to start your furnace, be  
sure the furnace air lter is clean and in  
place. See Performing Routine Main-  
tenancesection in this manual.  
Then proceed as follows:  
6. After waiting 5 minutes, turn con-  
trol switch on the gas valve to the  
ON position. (See Fig. 14 or 15.)  
or  
STEPS FOR STARTING  
YOUR FURNACE  
7. Replace main furnace door.  
(See Fig. 16.)  
1. Set your room thermostat to the  
lowest temperature setting.  
(See Fig. 8.)  
For 340MAV and 350MAV  
15  
®
8. Turn ON electrical supply to the  
furnace and wait 1 minute.  
(See Fig. 17.)  
9. Open the external manual gas  
valve. (See Fig. 18.)  
10. Set room thermostat to a tempera-  
ture slightly above room tempera-  
ture. This will automatically  
signal the furnace to start.  
11  
11. When the furnace receives the  
start signal, the inducer is started.  
When the pressure switch senses  
that there is sufcient combustion  
air, the hot surface igniter is ener-  
gized. After the hot surface igniter  
is heated for 17 seconds, the gas  
valve permits gas to ow to the  
main burners. After ignition and a  
time delay of about 60 sec, the fur-  
nace blower will start. Variable-  
capacity furnaces start at low  
a
8
For 352MAV and 355MAV  
12  
speed until the control makes the  
9
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necessary adjustments to operate  
the blower at either the low- or  
high-heat speed.  
When room temperature drops  
below the temperature selected  
on the thermostat, the furnace  
will be switched on automatically.  
When room temperature reaches  
the temperature selected on the  
thermostat, the furnace will be  
switched off automatically.  
20  
2. Close the external manual gas  
valve. (See Fig. 9.)  
3. Turn off electrical supply to the  
furnace. (See Fig. 20.)  
4. Remove main furnace door.  
(See Fig. 11.)  
5. Turn switch on the gas valve to  
Some thermostats have a FAN  
mode with 2 selections, AUTO  
and ON. When thermostat is set  
to AUTO, the furnace blower  
cycles on and off. In ON mode, the  
furnace blower runs continu-  
ously. Continuous fan keeps the  
temperature level in your home  
more evenly balanced. It also per-  
mits the indoor air to be continu-  
ously ltered. Fan On Plus™ –On  
all but the 340MAV, the blower  
speed can be increased or  
OFF position.  
(See Fig. 21 or 22.)  
16  
decreased if desired due to change  
of seasons, large gatherings in  
your home, etc. Simply change  
your FAN from ON to OFF (or  
AUTO depending on your thermo-  
stat), 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.  
For 352MAV and 355MAV  
21  
or  
17  
SHUTTING DOWN  
YOUR FURNACE  
For 340MAV and 350MAV  
22  
Should you need to shut down your  
furnace for service or maintenance,  
you will need to turn the furnace off.  
6. Replace main furnace door.  
(See Fig. 16.)  
7. If the furnace is being shut down  
because of a malfunction, call  
your dealer as soon as possible.  
The following procedures must be  
followed:  
1. Set your room thermostat to the  
lowest temperature setting.  
(See Fig. 19.)  
!
CAUTION  
Furnace is not to be installed,  
operated, and then turned off  
and left turned off in an unoc-  
cupied structure during winter.  
(See “Heading South for the  
Winter?” procedures in main-  
tenance section on page 9.)  
Freeze damage to furnace  
would occur.  
18  
®
NOTE:If the burners fail to ignite after  
4 attempts, the furnace control system  
will lock out. If lockout occurs, main  
burners fail to light, or blower does not  
come on, shut down the furnace and  
call your dealer for service.  
12. Set your thermostat to the temper-  
ature that satises your comfort  
requirements.  
19  
PERFORMING  
ROUTINE  
SUGGESTION: Setting the ther-  
mostat back a few degrees and  
compensating for the difference  
with warmer clothing can make a  
big difference in your fuel con-  
sumption.The few degrees at the top  
of your thermostat comfort level”  
are the most costly degrees to obtain.  
MAINTENANCE  
NOTE: The qualied installer or  
agency must use only factory-  
authorized replacement parts, kits,  
and accessories when modifying this  
product.  
6
 
of airow occurs, the furnace may cycle  
on its safety controls. If this condition is  
left unattended, the furnace will eventu-  
ally lock out. It is recommended that the  
furnace air lter be checked every 3 or 4  
weeks and cleaned if necessary.  
Installing and servicing of heating  
equipment can be hazardous due to  
gas and electrical components.  
Only trained and qualied personnel  
should install, repair, or service heat-  
ing equipment. Untrained personnel  
can perform basic maintenance func-  
tions such as cleaning and replacing air  
lters.  
If installed with factory-specied dis-  
posable media lter, check or replace l-  
ter before each heating and cooling  
season. Replace media lter at least  
once a year.  
Allotheroperationsmustbeperformed  
by trained and qualied service agency  
personnel. Observe safety precautions  
in this manual, on tags, and on labels  
attached to the furnace and other safety  
precautions that may apply.  
23  
24  
The air lter is normally located in the  
blower compartment (See Fig. 3 or 4.)  
or in the factory-supplied lter cabinet  
attached to the side or bottom of the  
furnace casing. If air lter has been  
installed in another location, contact  
your dealer for instructions. To inspect,  
clean, and/or replace the air lter(s),  
follow these steps:  
With proper maintenance and care, your  
furnace will operate economically and  
dependably. Instructions for basic main-  
tenance are found on this and the follow-  
ing pages. However, before beginning  
maintenance, follow these safety pre-  
cautions:  
1. Turn off electrical supply to fur-  
nace. (See Fig. 20.)  
2. Remove door/access panel  
AIR FILTER(S) LOCATED IN  
BLOWER COMPARTMENT  
a. Remove main furnace door.  
(See Fig. 23.)  
!
WARNING  
Turn off electrical power sup-  
ply to your furnace before re-  
moving the main furnace door  
to service or perform mainte-  
nance. Failure to follow this  
warning could result in per-  
sonal injury/death or property  
damage.  
b. Remove blower access panel.  
(See Fig. 24.)  
NOTE: It will be necessary to  
remove 2 screws  
AIR FILTER LOCATED IN FIL-  
TER CABINET  
a. Remove lter cabinet door (See  
Fig. 25 and 26.)  
!
CAUTION  
25  
NOTE: It will be necessary to  
Although special care has  
been taken to minimize sharp  
edges, be extremely careful  
when handling parts or reach-  
ing into the furnace. Failure to  
follow this caution woud result  
in minor personal injury.  
remove 1 thumbscrew  
3. Remove air lter from furnace.  
AIR FILTER LOCATED IN  
BLOWER COMPARTMENT  
BOTTOM:  
a. Slide lter retainer sideways  
until it is free of latch. (See  
Fig. 27.)  
b. Slide air lter out of furnace.  
(See Fig. 28.)  
FILTERING OUT TROUBLE  
AIR FILTER(S) LOCATED IN  
BLOWER COMPARTMENT  
SIDE:  
!
CAUTION  
Never operate your furnace  
without the air filter in place.  
Doing so may damage the fur-  
nace blower motor. An accu-  
mulation of dust and lint on  
internal parts of your furnace  
can cause a loss of efficiency  
and would cause minor prop-  
erty or product damage.  
a. Remove lter retainer from  
latch. (See Fig. 29.)  
26  
4. Inspect the lter. If torn, replace it.  
NOTE: If washable lter that was  
shipped with the furnace has been  
replaced by:  
b. Gently remove air lter and  
carefully turn the dirty side up  
(if dirty) to avoid spilling dirt  
from the lter. (See Fig. 30.)  
AIR FILTER LOCATED IN FIL-  
TER CABINET:  
a. Slide air lter out of furnace. Keep  
dirty side up (if dirty) to avoid  
spilling dirt. (See Fig. 31 and 32.)  
a. Factory specied disposable  
media lter Do not clean. If  
dirty, replace only with media l-  
ter having the same part number  
and size. Install with airow  
Adirtyairlterwillcausealossofairow  
in your duct system. When excessive loss  
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direction arrow pointing towards  
blower.  
b. Electronic air cleaner (EAC) –  
Refer to EAC owners Manual  
for maintenance information.  
34  
31  
5. If washable lter, wash lter (if  
dirty) in sink, bathtub, or outside  
with a garden hose. Always use  
cold tap water. A mild liquid deter-  
gent may be used if necessary.  
Spray water through lter in the  
opposite direction of airow.  
Allow lter to dry.  
27  
6. Reinstall clean air lter.  
7. Reinstall lter retainer (for blower  
compartment locations only).  
8. Replace blower access panel and  
main furnace door (See Fig. 33  
and 34) or lter cabinet door (Fig.  
35 and 36.)  
35  
28  
9. Turn on electrical supply to fur-  
nace.  
If your furnace air lter needs to be  
replaced, be sure to use a factory  
authorized lter of the same size that  
was originally supplied. Use the lter  
tables and compare your furnace size  
with the proper lter size.  
29  
36  
32  
30  
33  
8
 
When dirt, soot, scale, or rust is  
FURNACE AIR FILTER  
TABLE  
allowed to build up, your furnace can  
suffer a loss of efciency and perform  
improperly. Accumulations on the  
main burners can result in ring out of  
normal sequence. This delayed igni-  
tion creates an alarmingly loud sound.  
AIR FILTER LOCATED IN BLOWER COMPARTMENT  
FILTER SIZE  
FURNACE  
(IN.)  
CASING  
WIDTH  
(IN.)  
*Side  
Return†  
Bottom  
Return  
FILTER  
TYPE  
17-1/2  
(1) 16 x  
25 x 1*  
(1) 16 x  
25 x 1*  
Cleanable  
Cleanable  
Cleanable  
!
CAUTION  
21  
(1) 16 x  
25 x 1  
(1) 20 x  
25 x 1*  
If your furnace makes an espe-  
cially loud noise when the  
main burners light, shut down  
your furnace and call your  
dealer. Failure to follow this  
caution would result in minor  
property damage.  
24-1/2  
(1 or 2) 16  
x 25 x 1  
(1) 24 x  
25 x 1*  
AIR FILTER LOCATED IN FILTER CABINET:  
FILTER  
DOWNFLOW  
CABINET  
HEIGHT  
(IN)  
FILTER SIZE  
(IN.)  
38  
FILTERTYPE  
16  
20  
24  
(1) 16 x 25 x 1*  
or (1) 16 x 25 x 4-5/16  
Cleanable or  
Disposable  
4. Reinstall burner enclosure front.  
5. If your furnace is free of the above  
conditions, replace main furnace  
door and turn on electrical and gas  
supplies to your furnace.  
To inspect the combustion area and  
vent system, you will need a ashlight.  
Refer to Fig. 3 or 4, and proceed as  
follows:  
(1) 20 x 25 x 1*  
or (1) 20 x 25 x 4-5/16  
Cleanable or  
Disposable  
(1) 24 x 25 x 1*  
or (1) 24 x 25 x 4-5/16  
Cleanable or  
Disposable  
* Factory-provided with the furnace. Filters may be  
eld modied by cutting lter material and support  
rods (3) in lters. Alternate sizes and additional l-  
ters may be ordered from your dealer.  
1. Turn off gas and electrical supplies  
to the furnace and remove  
the main furnace door. (See Fig. 9,  
10, and 11.)  
(See Fig. 16, 17, and 18.)  
6. Start the furnace and observe its  
operation.Watch the burnerames  
to see if they are clear blue, almost  
transparent. (See Fig. 39.) If you  
observe a suspected malfunction,  
or the burner ames are not clear  
blue, call your dealer.  
Upow only.  
2. Remove burner enclosure front.  
!
CAUTION  
(See Fig. 37 or 38.)  
Inspect the gas burners, igniter  
area, and remainder of furnace for dirt,  
rust, soot, or scale.  
Use care when cutting support  
rods in filters to protect  
against flying pieces and  
sharp rod ends. Wear safety  
glasses, gloves, and appropri-  
ate protective clothing. Failure  
to follow this caution could re-  
sult in personal injury.  
!
CAUTION  
If dirt, rust, soot, or scale accu-  
mulations are found, call your  
dealer. Do not operate your  
furnace. Failure to follow this  
caution would result in minor  
property or product damage.  
COMBUSTION AREA  
AND VENT SYSTEM  
Visually inspect the combustion area  
and vent system before each heating  
season. Make sure that all PVC pipes  
leading into the combustion area and  
vent are free from any cracks and sags.  
3. Inspect the combustion-air and  
vent PVC pipes for sags, holes,  
cracks, or disconnections. Hori-  
zontal portions of pipes must slope  
downward toward furnace.  
39  
HEADING SOUTH FOR THE  
WINTER?  
DONT FORGET YOUR  
FURNACE!  
!
DANGER  
If holes are found in the pipes  
or if any portion has become  
disconnected, toxic fumes  
can escape into your home.  
DO NOT OPERATE YOUR  
FURNACE. Call your dealer for  
service. Failure to follow this  
warning could result in per-  
sonal injury or death.  
!
CAUTION  
If the furnace is installed in an  
unconditioned space where  
the ambient temperatures may  
be 32°F or lower, freeze protec-  
tion measures must be taken  
to prevent minor property or  
product damage.  
UPFLOW  
Since the furnace uses a condensing  
heat exchanger, some water will accu-  
mulate in the unit as a result of the heat  
Also check the combustion-air intake  
and vent pipes on the outside of your  
home for blockage.  
37  
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transfer process. Therefore, once it  
has been operated, it cannot be turned  
off and left off for an extended period  
of time when temperatures will reach  
32°F or lower unless winterized. Fol-  
low these procedures to winterize your  
furnace:  
Inspect and clean the blower motor  
and wheel.  
NOTE: The inducer and blower motors  
are pre-lubricated and require no addi-  
tional lubrication. These motors can be  
identied by the absence of oil ports on  
each end of the motor.  
1. Obtain propylene glycol (RV/  
swimming pool antifreeze or  
equivalent).  
Inspect and change or clean air l-  
ter(s) if necessary.  
Inspect all supply- and return-air  
ducts for obstructions, air leaks, and  
insulation. Remedy any problem when  
necessary.  
!
CAUTION  
Do not use ethylene glycol  
(Prestone II antifreeze coolant  
or equivalent). Failure of plas-  
tic components will occur.  
Inspect the return-air duct connec-  
tion(s) at the furnace to ensure it is  
physically sound, sealed to the furnace  
casing, and terminates outside the  
space containing the furnace.  
2. Turn off electrical supply to the  
furnace. (See Fig. 20.)  
3. Remove main furnace door.  
(See Fig. 23.)  
4. Remove upper inducer housing  
drain connection cap.  
(See Fig. 40.)  
5. Connect eld-supplied 1/2-in.  
ID tube to upper inducer housing  
drain connection.  
Inspect electrical wiring, connec-  
tions, and components for loose  
connections.  
41  
7. Pour 1 quart of antifreeze into  
funnel/tube. Antifreeze should  
run through inducer housing,  
Perform an operational checkout to  
determine whether your furnace is  
working properly and if it requires  
adjustments.  
overll condensate trap, and ow  
into open eld drain. (See Fig. 41.)  
8. Remove funnel and tube from  
inducer housing and replace drain  
connection cap and clamp.  
9. Replace main furnace door.  
(See Fig. 34.)  
Inspect all condensate drain tubes  
and condensate trap assembly for  
leaks. The condensate removal system  
should be cleaned annually by a quali-  
ed service agency. Refer to the Ser-  
vice and Maintenance Instructions for  
further information.  
6. Insert eld-supplied funnel into  
tube.  
10. Propylene glycol need not be  
removed before restarting  
furnace.  
Examine the physical support of the  
furnace. The support should be sound  
with no cracks, sagging, gaps, etc.  
around the base.  
A CHECK-UP  
CHECKLIST  
Your furnace represents an important  
investment in your familys comfort  
and your homes value. To keep it  
performing properly and to prevent  
future problems, have a trained service  
specialist give your furnace a profes-  
sional check-up annually. The follow-  
ing checklist can be used as a guideline  
to proper service:  
Check furnace for any obvious signs  
of deterioration.  
BEFORE YOU  
REQUEST A  
SERVICE CALL  
If your furnace is not operating or not  
performing properly, you may save  
the expense of a service call by check-  
ing a few things yourself before calling  
for service.  
Inspect all ue gas passages, burn-  
ers, heat exchangers, coupling  
box(es), and inducer assembly.  
40  
Inspect all combustion-air and vent  
piping inside structure and pipe termi-  
nations outside the structure.  
FOR INSUFFICIENT AIRFLOW:  
Check for dirty air lter(s).  
Check gas pipes leading to and  
inside of your furnace for leaks.  
Check for blocked return-air or sup-  
ply-air grilles throughout your home.  
Download from Www.Somanuals1.c0om. All Manuals Search And Download.  
Ensure they are open and unobstructed.  
NOTE: Turn off electrical supply  
before continuing with checklist.  
vent termination outside the structure.  
If problem still exists, call your dealer  
for service.  
If your furnace still fails to operate, call  
your service representative.  
Is control switch on gas valve in ON  
position? (Follow start-up procedures  
if you must reset switch to ON posi-  
tion.)  
For your convenience, record the fur-  
nace product and serial numbers on  
back page. Should you ever require ser-  
vice, you will have ready access to the  
information needed by your service  
representative.  
IF FURNACE FAILS TO OPERATE:  
Follow this checklist step by step,  
advancing to the next step only if fur-  
nace fails to start.  
Check manual reset ame rollout  
switch located on the burner box in  
combustion area. (See Fig. 3 or 4.) If  
furnace has experienced high tempera-  
ture conditions, this switch will shut  
off the furnace. Reset it by pushing the  
button on the switch. If it trips again,  
shut down the furnace and call for ser-  
vice. See Shutting Down Your Fur-  
nacesection in this manual.  
Check thermostat for proper tem-  
perature. Is thermostat set above room  
temperature?  
This furnace has a light emitting diode  
(LED) status code display to aid the  
installer, service technician, or home-  
owner while installing or servicing the  
unit. The LED code can be seen by  
removing the access door and viewing  
LED through the view port in the  
blower access panel.  
Is thermostat set to HEAT?  
Check fuses and circuit breakers. Is  
electrical supply on?  
Is manual shutoff valve in gas supply  
pipe in open position? (Follow start-up  
procedures if you open gas valve.)  
Check for obstructions around the  
11  
 
INSTALLATION DATA  
Date Installed  
AIR CONDITIONER OR HEAT PUMP  
OUTDOOR UNIT:  
Dealer Name  
Address  
City  
Product No.  
Model No.  
Serial No.  
State  
Zip  
INDOOR COIL:  
Product No.  
Model No.  
Telephone  
FURNACE  
Product No.  
Model No.  
Serial No.  
Serial No.  
Cancels: OM05-39  
Catalog No. 5334-017  
OM05-42  
10-03  
© 2003 Bryant Heating & Cooling Systems, 7310 W. Morris St., Indpls., IN 46231  
12  
Printed in U.S.A.  
 

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