Bryant 355CAV Service And Maintenance Procedures Manual

Bryant 355CAV Service And Maintenance Procedures Manual

Direct vent 4-way multipoise condensing gas furnace with perfect sense perfect humidity
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PLUS 95S - - MODEL 355CAV
DIRECT VENT 4- -WAY MULTIPOISE
CONDENSING GAS FURNACE
WITH PERFECT SENSET PERFECT HUMIDITYT

Service and Maintenance Procedures

NOTE: Read the entire instruction manual before starting the
installation.
WARNING
!
ELECTRICAL SHOCK, FIRE OR EXPLOSION
HAZARD
Failure to follow warnings could result in personal injury,
death, or property damage.
Improper servicing could result in dangerous operation,
serious injury, death, or property damage.
- -Before servicing, disconnect all electrical power to
furnace.
- -When servicing controls, label all wires prior to
disconnecting. Reconnect wires correctly.
- -Verify proper operation after servicing.
WARNING
!
ELECTRICAL SHOCK, FIRE OR EXPLOSION
HAZARD
Failure to follow this warning could result in property
damage, personal injury, or death.
The ability to properly perform maintenance on this
equipment requires certain expertise, mechanical skills,
tools, and equipment. If you do not possess these, do not
attempt to perform any maintenance on this equipment
other than those procedures recommended in the User's
Manual.
WARNING
!
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal
injury, death, or property damage.
Never store anything on, near, or in contact with the
furnace, such as:
1. Spray or aerosol cans, rags, brooms, dust mops, vacuum
cleaners, or other cleaning tools.
2. Soap powders, bleaches, waxes or other cleaning
compounds, plastic or plastic containers, gasoline, kerosene,
cigarette lighter fluid, dry cleaning fluids, or other volatile
fluids.
3. Paint thinners and other painting compounds, paper bags,
or other paper products.
As an ENERGY STAR® Partner,
Carrier Corporation has deter-
mined that this product meets
the ENERGY STAR® guidelines
for energy efficiency.

SAFETY CONSIDERATIONS

Recognize safety information. This is the safety- -alert symbol
. When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Understand
the
signal
CAUTION, and NOTE. These words are used with the
safety- -alert symbol. 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.
Untrained personnel can perform basic maintenance functions
described in User's Information Manual such as cleaning and
replacing air filters. All other operations must be performed by
trained service personnel. When working on heating equipment,
observe precautions in the literature, on tags, and on labels
attached to or shipped with the unit and other safety precautions
that may apply.
CAUTION
!
CUT HAZARD
Failure to follow this caution may result in personal injury.
Be careful of sharp metal edges, etc. Use care and wear
protective clothing, gloves, and safety glasses when
removing parts.
Installing and servicing heating equipment can be hazardous due
to gas and electrical components. Only trained and qualified
service agency personnel should install, repair, or service heating
equipment.
Follow all safety codes including the National Fuel Gas Code
(NFGC) NFPA 54- -2006/ANSI Z223.1- -2006 in the USA, CSA
B149.1- -05 National Standard of Canada, Natural Gas and
Propane Installation Codes (NSCNGPIC) in Canada, and the
Installation Standards, Warm Air Heating and Air Conditioning
Systems (NFPA 90B) ANSI/NFPA 90B. Wear safety glasses and
work gloves. Have a fire extinguisher available during start- -up
and adjustment procedures and service calls.
1
ama
CERTIFIED
ISO 9001:2000
REGISTERED
words
DANGER,
WARNING,

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Summary of Contents for Bryant 355CAV

  • Page 1: Service And Maintenance Procedures

    PLUS 95S - - MODEL 355CAV DIRECT VENT 4- -WAY MULTIPOISE CONDENSING GAS FURNACE WITH PERFECT SENSET PERFECT HUMIDITYT Service and Maintenance Procedures NOTE: Read the entire instruction manual before starting the installation. WARNING CERTIFIED ELECTRICAL SHOCK, FIRE OR EXPLOSION...
  • Page 2: Electrostatic Discharge (Esd) Precautions

    ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may damage furnace components. Failure to follow this caution may damage furnace components. Electrostatic discharge can affect electronic components. Take precautions during furnace installation and servicing to protect the furnace electronic control. Precautions will prevent electrostatic discharges from personnel and hand tools which are held during the procedure.
  • Page 3: Blower Motor And Wheel Maintenance

    WASHABLE FILTER IN FURNACE FILTER RETAINER WASHABLE FILTER FILTER SUPPORT FILTER RETAINER WASHABLE FILTER OR WASHABLE FILTER OR DISPOSABLE MEDIA FILTER IN FILTER CABINET DISPOSABLE MEDIA FILTER IN FILTER CABINET A00232 A00233 Fig. 3 - - Bottom Filter Arrangement Fig. 4 - - Filter Installed for Side Inlet The minimum maintenance that should be performed on this 6.
  • Page 4 PLUG COLLECTOR BOX DRAIN TUBE (BLUE & WHITE STRIPED) COLLECTOR BOX TUBE (PINK) INDUCER HOUSING (MOLDED) DRAIN TUBE (BEHIND COLLECTOR BOX DRAIN TUBE) COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX TUBE (GREEN ROUTES BEHIND INDUCER) CONDENSATE TRAP FIELD- INSTALLED FACTORY- SUPPLIED DRAIN TUBE COUPLING (LEFT DRAIN OPTION)
  • Page 5: Electrical Shock Hazard

    12. Remove burner assembly from burner box. NOTE: All WARNING burners are attached to burner bracket and can be removed as 1 assembly. ELECTRICAL SHOCK HAZARD 13. Clean burners with soft brush and vacuum. 14. Reinstall manifold, orifice, and gas valve assembly in Failure to follow this warning could result in personal burner box.
  • Page 6 PRIMARY HX INLET OPENINGS IGNIT ER WIRES MUST BE PLACED IN THIS SLOT A05074 A96305 Fig. 7 - - Igniter Wire Placement Fig. 8 - - Cleaning Inlet Openings of Primary Heat Exchangers A93087 Fig. 9 - - Combustion- -air Intake Housing Gasket Repair...
  • Page 7 A07563 Fig. 10 - - Furnace Pressure and Drain Tubing Diagram BURNER FLAME WARNING BURNER FIRE, EXPLOSION, UNIT DAMAGE HAZARD Failure to follow this warning could result in personal injury, death, or property damage,. Gas valve switch MUST be facing forward or tilted slightly. WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal...
  • Page 8: Cleaning Heat Exchangers

    19. Replace burner box cover. from occurring) to burner box and apply a small bead of G.E. RTV 162, G.E. RTV 6702, or Dow- -Corning RTV 738 sealant to 20. Turn on gas and electrical supplies to furnace. edge of combustion- -air intake housing. (See Fig. 9.) 21.
  • Page 9: Fire And Explosion Hazard

    CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in furnace component damage. DO NOT use wire brush or other sharp object to inspect or dislodge materials in secondary heat exchangers as cutting of the secondary heat exchanger protective coating may occur.
  • Page 10 1. Turn off gas and electrical supplies to furnace. 2. Remove main furnace door. 3. Disconnect igniter wire connection. 4. Check igniter resistance. Igniter resistance is affected by temperature. Only check resistance when the igniter is at room temperature. a. Using an ohm meter, check resistance across both igniter leads in connector.
  • Page 11 H. ELECTRICAL CONTROLS AND WIRING code 24 when fuse needs to be replaced. With power to the unit disconnected, check all electrical WARNING connections for tightness. Tighten all screws on electrical connections. If any smoky or burned connections are found, disassemble the connection, clean all parts, strip wire, and ELECTRICAL SHOCK HAZARD reassemble properly and securely.
  • Page 12: Wiring Diagrams

    2. Remove main furnace door. WARNING 3. Disconnect upper inducer housing drain connection cap from inducer housing. (See Fig. 18.) ELECTRICAL SHOCK, UNIT MAY NOT OPERATE 4. Connect field- -supplied 1/2- -in. I.D. inducer housing tube HAZARD to upper inducer housing drain connection. Failure to follow this warning could result in personal 5.
  • Page 13 (3.) Main blower motor operates at midrange airflow for 15 sec, then turns off. (4.) After component operation test is completed, 1 or more fault codes (11, 25, 41, or 42) will flash. See service label on back of main furnace door or Fig. 20 for explanation of codes.
  • Page 14 USER INTERFACE CONTINUOUS FAN SW4 SETUP OR ADVANCED (CF) AIRFLOW SWITCHES PRODUCT SETUP SWITCHES MODEL PLUG CONNECTOR MONITOR CONNECTOR CONNECTOR SW1 SETUP SWITCHES AND BLOWER OFF- DELAY AIR CONDITIONING (A/C) AIRFLOW SETUP SWITCHES HUMIDIFIER TERMINAL (24-VAC 0.5 AMP MAX. ACRDJ – AIR CONDITIONING RELAY DISABLE JUMPER...
  • Page 15 32 o F MINIMUM INSTALLED AMBIENT OR FREEZE PROTECTION REQUIRED A93058 A99118 Fig. 17 - - Freeze Protection Fig. 18 - - Inducer Housing Drain Tube A99119 Fig. 19 - - Funnel in Drain Tube and Antifreeze Running Through Trap...
  • Page 16 A07564 Fig. 20 - - Service Label...
  • Page 17 A06677 Fig. 21 - - Wiring Diagram...
  • Page 18 A07581...
  • Page 19 A07582...
  • Page 20 A07583...
  • Page 21 SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Maintenance • Installation Overview • Operating Sequence A large selection of product, theory, and skills programs is available, using popular video-based formats and materials.
  • Page 22 Catalog No. SM05---06 E2007 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 07/07 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

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