Bryant PLUS 95S 355CAV Owner's Manual

PLUS 95S -- MODEL 355CAV

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DIRECT VENT 4--WAY MULTIPOISE
MODULATING CONDENSING GAS FURNACE
WITH PERFECT SENSET PERFECT HUMIDITYT

Owner’s Manual

NOTE TO INSTALLER:

THIS MANUAL MUST BE LEFT WITH THE EQUIPMENT
USER.

USER: Please read all instructions in the manual and retain all
manuals for future reference.

CERTIFIED

!

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly could result in
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.

!

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal
injury and/or death.

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 attached garages. Follow the alarm
manufacturer’s instruction included with the alarm.

WARNING

WARNING

As an ENERGY STAR® Partner,
Bryant Heating & Cooling
Systems has determined that
this product meets the ENERGY
STAR® guidelines for energy

.

efficienc

A05085

Do not use this furnace if any part has been under water. A
flood--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.

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TABLE OF CONTENTS

WELCOME TO A NEW GENERATION OF COMFORT 2...

FURNACE COMPONENTS 3..........................

SAFETY CONSIDERATIONS 4........................

BEFORE STARTING YOUR FURNACE 4................

STARTING AND SHUTTING DOWN YOUR FURNACE 5..

Steps for Starting Your Furnace 5..................

Shutting Down Your Furnace 7....................

PERFORMING ROUTINE MAINTENANCE 7............

Filtering Out Trouble 8............................

COMBUSTION AREA AND VENT SYSTEM 10..........

Heading South for the Winter 11...................

A CHECK--UP CHECKLIST 12.........................

BEFORE YOU REQUEST A SERVICE CALL 13..........

INSTALLATION DATA 14............................

WELCOME TO A NEW GENERATION
OF COMFORT

Congratulations! In light of rising energy costs, the Plus95s
Gas--Fired, Modulating Condensing Furnace is among the wisest
investment today’s homeowner can make.

Your new furnace is truly a triumph of technology in home
heating. A revolutionary design employs two heat exchangers to
maximize the amount of heat from the fuel consumed. In fact,
your new furnace is so efficient, up to95%* of the heat generated
during combustion is captured and delivered inside your home.
That is more than a 33%* increase in heating efficiency over
conventional furnaces.

These are among the most energy--efficient furnaces you can buy
today. They also are among the safest and most dependable. We
are proud of the technological advances incorporated into the
design of these furnaces. With only minimal care, your new
furnace will deliver many years of money--saving home comfort
and enjoyment. Spend just a few minutes with this manual to
learn the operation of your new furnace and the small amount of
maintenance it takes to help keep it operating at peak efficiency
year after year.

* The output capacity and any representations of efficiency for this furnace

are based on standard U.S. D epartment of Energy test procedures.

A05085

Fig. 1 -- Plus95s Variable Capacity Furnace

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FURNACE COMPONENTS

11

16

12

2

17

3

4

1

18

5

6

5

15

14

13

7

9

19

8

10

Fig. 2 -- Model 355CAV Furnace

1. Combustion--air intake connection to ensure contaminant-­free air (right or left side).

2. Burner sight glass for viewing burner flame.

3. Burner assembly (inside). Operates with energy--saving
inshot burners and hot surface igniter for safe, dependable
heating.

4. Redundant gas valve. Safe and efficient. Features 1 gas
control with 2 internal shutoff valves and one throttling
valve.

5. Vent outlet. Uses PVC pipe to carry flue gas from the
furnace’s combustion system (right or left side).

6. Inducer motor. Pulls hot flue gases through the heat
exchangers, maintaining negative pressure for added
safety.

A07609

10. Heavy-- duty blower. Circulates air across the heat
exchangers to transfer heat into the home.

11. Everlastict Secondary condensing heat exchanger
(inside). Wrings out more heat through condensation.
Constructed with polypropylene--laminated steel to ensure
durability.

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.

13. Furnace control board.

14. 3--amp fuse provides electrical and component protection.

15. Light emitting diode (LED) on furnace control board.
Status code light is for diagnosing furnace operation and
service requirements.

16. Pressure switches ensure adequate flow of flue gas
through furnace and out vent system.

7. Blower access panel safety interlock switch.

8. Air filter and retainer (location in furnace may vary).

9. Condensate drain connection. Collects moisture
condensed from burned gases for disposal into home drain
system. (Location in furnace varies.)

17. Rollout switch (manual reset) to prevent overtemperature.

18. Junction box for 115--v electrical power supply. (May be
located on right or left side)

19. Transformer (24v) behind furnace control board provides
low--voltage power to furnace control board and
thermostat.

3

SAFETY 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.

Understand the signal words: DANGER, WARNING, and
CAUTION. DANGER identifies the most serious hazards which
will 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 may result
in minor personal injury or product and property damage. NOTE
is used to highlight suggestions which will result in enhanced
installation, reliability or operation.

To minimize the possibility of serious personal injury, fire,
furnace damage, or improper operation; carefully follow these
safety rules:

S Your gas furnace uses air from outside the home for

combustion and vents flue gas to the outdoors. It is not
to be installed using indoor air for combustion. The
vent pipe must terminate outside the structure and must
not be obstructed in any way. The air--intake pipe must
terminate outside the structure or in a well ventilated
area that is isolated from the living space and the garage
(e.g. well ventilated attic or crawlspace). Do not block
or obstruct air openings on furnace or spaces around
furnace.

or when insulation is added. Some materials may be
combustible.

S 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.

!

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal
injury/death or property damage.

Do not keep combustible materials, gasoline, and other
flammable liquids or vapors around your furnace.

!

FIRE AND UNIT OPERATION HAZARD

Failure to follow this warning could result in personal
injury/death or property damage.

For proper and safe operation the furnace needs air for
combustion 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.

WARNING

WARNING

Fig. 3 -- Venting

S Keep the area around your furnace clear and free of

combustible materials, gasoline, and other flammable
liquids and vapors.

Fig. 4 -- Combustible Materials

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BEFORE STARTING YOUR FURNACE

Examine the furnace installation monthly 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 burner flames are in good adjustment. (See Fig. 5.)

S Do not cover the furnace, store trash or debris near it, or

in any way block the flow of fresh air to the unit.

S 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

A92330

Fig. 5 -- Burner Flame

4

STARTING AND SHUTTING DOWN
YOUR FURNACE

Instead of a continuously burning pilot flame 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:

S Never attempt to manually light the burners with a

match or other source of flame.

A92319

Fig. 6 -- Do Not Light Burner with Match

S Read and follow the operating instructions on 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
furnace label. If you don’t smell gas, go to the next
step.

S 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 inside of
main furnace door, or in the “Shutting Down Your
Furnace” section and call your dealer as soon as
possible.

!

FIRE AND EXPLOSION HAZARD

Failure to follow this warning could result in personal
injury/death or property damage.

Should the gas supply fail to shut off or if overheating
occurs, turn off the manual gas valve to the furnace
BEFORE turning off the electrical supply. (See Fig. 8.)

WARNING

A08013

Fig. 7 -- Lowest Temperature Setting

C

L

O

S

E

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Fig. 8 -- Close Valve

3. Turn OFF electrical supply to the furnace. (See Fig. 9.)

4. Remove main furnace door. (See Fig. 10.)

5. The gas valve will have a control switch to turn off and
on. Turn the control switch on the gas control to the OFF
position and wait 5 minutes. (See Fig. 11.) 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, turn the control switch on the gas
control to the ON position. (See Fig. 12.)

S CHECK AIR FILTER: Before attempting to start

your furnace, be sure the furnace filter is clean and in
place. See “Performing Routine Maintenance” section
in this manual. Then proceed as follows:

Steps For Starting Your Furnace

1. Set your room thermostat to the lowest temperature
setting. (See Fig. 7.)

2. Close the external manual gas valve. (See Fig. 8.)

Fig. 9 -- Turn Off Electrical Supply

A92185

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