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NOTE TO INSTALLER:
This manual must be left with the equipment
user.
!
WARNING:
FIRE OR EXPLOSION HAZARD. Failure to fol-
low 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.
!
WARNING:
Carbon Monoxide is invisible, odorless, and toxic!
Bryant Heating & 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.
USER'S INFORMATION MANUAL
CONDENSING GAS FURNACE
USER: Please read all manuals and
retain manuals for future reference.
Do not use this furnace if any part has been
under water. Immediately call a qualified
service technician to inspect the furnace and
to replace any part of the control system and
gas control which has been under water.
MODEL 345MAV
As an ENERGY STAR®
Partner, Bryant Heating &
Cooling Systems has
determined that this product
meets the ENERGY STAR®
CERTIFIED
guidelines for energy
efficiency.

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Summary of Contents for Bryant 345MAV

  • Page 1 Carbon Monoxide is invisible, odorless, and toxic! guidelines for energy efficiency. Bryant Heating & Cooling Systems recommends a carbon monoxide alarm in your home, even if you Do not use this furnace if any part has been do not own a gas appliance. Locate the carbon monoxide alarm in the living area of your home under water.
  • Page 2: Welcome To A New Generation Of Comfort

    WELCOME TO A NEW GENERATION OF COMFORT Congratulations! In light of rising energy costs, the 345MAV Multipoise Condensing Gas Furnace is among the soundest investments today’s home- owner can make. Your new furnace is truly a triumph of technology in home heating. A revolutionary design employs 2 heat exchangers to “squeeze”...
  • Page 3: Furnace Components

    FURNACE COMPONENTS Burner sight glass for viewing burner flame. Burner assembly (inside). Operates with energy- saving inshot burners and hot surface ignitor for safe, dependable heating. Combustion-air intake connection (right or left side). Redundant gas valve. Safe, efficient. Features 1 gas control with 2 internal shutoff valves.
  • Page 4: Safety Considerations

    SAFETY • Do not cover the furnace, store trash • Never attempt to light the burners or debris near it, or in any way block manually with a match or other source CONSIDERATIONS the flow of fresh air to the unit. of flame.
  • Page 5 will be switched on automatically. When room temperature reaches the temperature selected on the thermostat, the furnace will be switched off automatically. 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.
  • Page 6: Shutting Down Your Furnace

    SHUTTING DOWN 7. If the furnace is being shut down FILTERING OUT TROUBLE YOUR FURNACE because of a malfunction, call CAUTION Should you need to shut down your your dealer as soon as possible. furnace for service or maintenance, Never operate your furnace CAUTION you will need to turn the furnace off.
  • Page 7: Combustion Area And Vent System

    b. Slide air filter out of furnace. 5. Inspect the filter. If torn, replace it. CAUTION (See Fig. 21.) NOTE: If washable filter that was Use care when cutting support shipped with the furnace has been rods filters protect replaced with an electronic air cleaner against flying pieces...
  • Page 8: Heading South For The Winter

    CAUTION If dirt, rust, soot, or scale accu- mulations are found, call your dealer. Do not operate your furnace. 3. Inspect the combustion-air and vent PVC pipes for sags, holes, cracks, or disconnections. Hori- zontal portions of vent pipe must slope downward toward furnace.
  • Page 9: Before You Request Aservice Call

    ing checklist can be used as a guideline further information. IF FURNACE FAILS TO OPERATE: to proper service: • Examine the physical support of the Follow this checklist step by step, • Inspect all flue gas passages, burn- furnace. The support should be sound advancing to the next step only if fur- ers, heat exchangers, coupling with no cracks, sagging, gaps, etc.
  • Page 12 Cancels: OM05-31 OM05-37 © 2002 Bryant Heating & Cooling Systems, 7310 W. Morris St., Indpls., IN 46231 Printed in U.S.A. Catalog No. 5334-514 7-02...

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