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9

FURNACE AIR FILTER 

TABLE

 * Factory-provided with the furnace. Filters may be 

field modified by cutting filter material and support 
rods (3) in filters. Alternate sizes and additional fil-
ters may be ordered from your dealer.

† Upflow only.

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.

 Also check the combustion-air intake 
and vent pipes on the outside of your 
home for blockage.

When dirt, soot, scale, or rust is 
allowed to build up, your furnace can 
suffer a loss of efficiency and perform 
improperly. Accumulations on the 
main burners can result in firing out of 
normal sequence. This delayed igni-
tion creates an alarmingly loud sound.

To inspect the combustion area and 
vent system, you will need a flashlight. 
Refer to Fig. 3 or 4, and proceed as 
follows:

1. Turn off gas and electrical supplies 

to the furnace and remove 
the main furnace door. (See Fig. 9, 
10, and 11.)

2. Remove burner enclosure front. 

(See Fig. 37 or 38.)

Inspect the gas burners, igniter 
area, and remainder of furnace for dirt, 
rust, soot, or scale.

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.

37

38

 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. 
(See Fig. 16, 17, and 18.)

6. Start the furnace and observe its 

operation. Watch the burner flames 
to see if they are clear blue, almost 
transparent. (See Fig. 39.) If you 
observe a suspected malfunction, 
or the burner flames are not clear 
blue, call your dealer.

39

HEADING SOUTH FOR THE 
WINTER?

DON’T FORGET YOUR 
FURNACE!

Since the furnace uses a condensing 
heat exchanger, some water will accu-
mulate in the unit as a result of the heat 

AIR FILTER LOCATED IN BLOWER COMPARTMENT

FURNACE 

CASING 

WIDTH 

(IN.)

FILTER SIZE

(IN.)

FILTER 

TYPE

*Side 

Return†

Bottom 

Return

17-1/2

(1) 16 x 

25 x 1*

(1) 16 x 

25 x 1*

Cleanable

21

(1) 16 x 

25 x 1

(1) 20 x 

25 x 1*

Cleanable

24-1/2

(1 or 2) 16 

x 25 x 1

(1) 24 x 

25 x 1*

Cleanable

AIR FILTER LOCATED IN FILTER CABINET:

FILTER 

CABINET 

HEIGHT 

(IN)

FILTER SIZE

(IN.)

FILTER TYPE

16

(1) 16 x 25 x 1*

or (1) 16 x 25 x 4-5/16

Cleanable or

Disposable

20

(1) 20 x 25 x 1*

or (1) 20 x 25 x 4-5/16

Cleanable or

Disposable

24

(1) 24 x 25 x 1*

or (1) 24 x 25 x 4-5/16

Cleanable or

Disposable

CAUTION

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.

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 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.

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.

!

!

UPFLOW

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.

DOWNFLOW

!

Содержание CONDENSING GAS FURNACE 340MAV

Страница 1: ...gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier WARNING 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 a...

Страница 2: ...rnace are based on standard U S Department of Energy test procedures 1 MODELS 340MAV SHOWN AND 350MAV FIXED CAPACITY FURNACES 2 MODEL 355MAV VARIABLE CAPACITY AND MODEL 352MAV TWO STAGE FURNACES CERTIFIED As an ENERGY STAR Partner Bryant Heating Cooling Systems has determined that this product meets the ENERGY STAR guidelines for energy efficiency 2 TABLE OF CONTENTS WELCOME TO A NEW GENERATION OF...

Страница 3: ...condary condensing heat exchanger inside Wrings out more heat through condensation Constructed with polypropylene laminated steel to ensure durability Primary serpentine heat exchanger inside Stretches fuel dollars with the S shaped heat flow design Solid construction of corrosion resistant aluminized steel means reliability Furnace control board 3 amp fuse provides electrical and component protec...

Страница 4: ...ciated with no heat such as frozen water pipes etc See Before You Request a Service Call section in this manual 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 exce...

Страница 5: ...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 floor If you smell gas STOP Fol low B on furnace label If you don t smell gas go to next step 6 After waiting 5 minutes turn con trol switch on ...

Страница 6: ... be increased or 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 ...

Страница 7: ...nace will eventu ally lock out It is recommended that the furnace air filter be checked every 3 or 4 weeks and cleaned if necessary If installed with factory specified dis posablemediafilter checkorreplacefil ter before each heating and cooling season Replace media filter at least once a year The air filter is normally located in the blower compartment See Fig 3 or 4 or in the factory supplied fil...

Страница 8: ...r in the opposite direction of airflow Allow filter to dry 6 Reinstall clean air filter 7 Reinstall filter retainer for blower compartment locations only 8 Replace blower access panel and main furnace door See Fig 33 and 34 or filter cabinet door Fig 35 and 36 9 Turn on electrical supply to fur nace If your furnace air filter needs to be replaced be sure to use a factory authorized filter of the s...

Страница 9: ...ected malfunction or the burner flames are not clear blue call your dealer 39 HEADING SOUTH FOR THE WINTER DON T FORGET YOUR FURNACE Since the furnace uses a condensing heat exchanger some water will accu mulate in the unit as a result of the heat AIR FILTER LOCATED IN BLOWER COMPARTMENT FURNACE CASING WIDTH IN FILTER SIZE IN FILTER TYPE Side Return Bottom Return 17 1 2 1 16 x 25 x 1 1 16 x 25 x 1...

Страница 10: ...k gas pipes leading to and inside of your furnace for leaks 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 identified by the absence of oil ports on each end of the motor Inspect and change or clean air fil ter s if necessary Inspect all supply and return air ducts for obstructions air le...

Страница 11: ...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 nace section in this manual Check for obstructions around the vent termination outside the structure If your furnace still ...

Страница 12: ... IN 46231 12 Printed in U S A Catalog No 5334 017 10 03 INSTALLATION DATA Date Installed Dealer Name Address City State Zip 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 ...

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