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USER’S INFORMATION MANUAL
MODEL 340MAV, 350MAV, 352MAV,
355MAV CONDENSING GAS
FURNACE
USER: Please read all instructions in
NOTE TO INSTALLER:
the manual and retain all manuals for
This manual must be left with the equipment user.
future reference.
! 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
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Shutting Down Your Furnace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 TABLE OF CONTENTS PERFORMING ROUTINE MAINTENANCE. . . . . . . . . . . . . . . . . . . . 6 WELCOME TO A NEW GENERATION OF COMFORT. . . . . . . . .2 Filtering Out Trouble. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 GENERAL FURNACE SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 COMBUSTION AREA A
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FURNACE COMPONENTS 17 1 Combustion-air intake connection to ensure 2 contaminant-free air (right or left side). 3 1 2 Burner sight glass for viewing burner flame. 12 4 3 Burner assembly (inside). Operates with energy- 18 saving inshot burners and hot surface igniter for safe, dependable heating. 5 5 4 Redundant gas valve. Safe and efficient. Features 1 gas 11 14 control with 2 internal shutoff valves. Valve appearance varies with furnace model. 16 15 6 5 Vent outlet. Uses PVC pipe to
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SAFETY BEFORE STARTING CONSIDERATIONS YOUR FURNACE Examine the furnace installation to Recognize safety information. This is determine that: the safety-alert symbol ! . When you see this symbol on the furnace and in 1. All flue gas carrying areas external instructions or manuals, be alert to the to the furnace (i.e. chimney, vent potential for personal injury. connector) are clear and free of obstructions. Understand the signal words DANGER, WARNING, CAUT
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ON OFF ON OFF E S O L C 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. or 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- For 340MAV and 350MAV dures on inside of main furnace door, or in the “Shutting Down Your Fur- 13 nace” section and call your dealer as soon as possib
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ON OFF N E P O necessary adjustments to operate When room temperature drops 20 the blower at either the low- or below the temperature selected 2. Close the external manual gas high-heat speed. on the thermostat, the furnace valve. (See Fig. 9.) will be switched on automatically. 3. Turn off electrical supply to the When room temperature reaches furnace. (See Fig. 20.) the temperature selected on the 4. Remove main furnace door. thermostat, the furnace will be (See
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of airflow occurs, the furnace may cycle Installing and servicing of heating on its safety controls. If this condition is equipment can be hazardous due to left unattended, the furnace will eventu- gas and electrical components. ally lock out. It is recommended that the Only trained and qualified personnel furnace air filter be checked every 3 or 4 should install, repair, or service heat- weeks and cleaned if necessary. ing equipment. Untrained personnel If installed with factory-specifi
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direction arrow pointing towards blower. b. Electronic air cleaner (EAC) – Refer to EAC owner’s Manual for maintenance information. 34 31 5. If washable filter, wash filter (if dirty) in sink, bathtub, or outside with a garden hose. Always use 27 cold tap water. A mild liquid deter- gent 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. Reinstall filter retainer (for blower compartment locations on
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When dirt, soot, scale, or rust is FURNACE AIR FILTER allowed to build up, your furnace can TABLE suffer a loss of efficiency and perform AIR FILTER LOCATED IN BLOWER COMPARTMENT improperly. Accumulations on the FILTER SIZE FURNACE main burners can result in firing out of (IN.) CASING normal sequence. This delayed igni- WIDTH *Side Bottom FILTER (IN.) Return† Return TYPE tion creates an alarmingly loud sound. 17-1/2 (1) 16 x (1) 16 x Cleanable 25 x 1* 25 x 1* ! CAUTION 21 (1) 16 x (1) 20
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transfer process. Therefore, once it • Inspect and clean the blower motor has been operated, it cannot be turned and wheel. off and left off for an extended period NOTE: The inducer and blower motors of time when temperatures will reach are pre-lubricated and require no addi- 32°F or lower unless winterized. Fol- tional lubrication. These motors can be low these procedures to winterize your identified by the absence of oil ports on furnace: each end of the motor. 1. Obtain propylene glycol
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Ensure they are open and unobstructed. NOTE: Turn off electrical supply vent termination outside the structure. before continuing with checklist. If problem still exists, call your dealer If your furnace still fails to operate, call for service. your service representative. • Is control switch on gas valve in ON position? (Follow start-up procedures For your convenience, record the fur- IF FURNACE FAILS TO OPERATE: if you must reset switch to ON posi- nace product and serial numbers on Follow
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INSTALLATION DATA AIR CONDITIONER OR HEAT PUMP Date Installed OUTDOOR UNIT: Dealer Name Product No. Address Model No. City Serial No. State Zip INDOOR COIL: Telephone Product No. FURNACE Model No. Product No. Serial No. Model No. Serial No. Cancels: OM05-39 OM05-42 © 2003 Bryant Heating & Cooling Systems, 7310 W. Morris St., Indpls., IN 46231 12 Printed in U.S.A. Catalog No. 5334-017 10-03
