Bryant 312AAV - Manual

NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
Safety Considerations.....................................................................1
Introduction ....................................................................................1
Codes and Standards......................................................................4
Safety.........................................................................................4
General Installation...................................................................4
Combustion and Ventilation Air ..............................................4
Duct Systems ............................................................................4
Acoustical Lining and Fibrous Glass Duct..............................4
Gas Piping and Gas Pipe Pressure Testing..............................4
Electrical Connections ..............................................................4
Electrostatic Discharge (ESD) Precautions Procedure..................4
Applications....................................................................................5
General ......................................................................................5
Uplflow Applications................................................................5
Downflow Applications............................................................5
Horizontal Left (Supply-Air Discharge) Applications ............5
Horizontal Right (Supply-Air Discharge) Applications ..........5
Location..........................................................................................5
General ......................................................................................5
Location Relative to Cooling Equipment ................................5
Air for Combustion and Ventilation..............................................6
Unconfined Space .....................................................................6
Confined Space .........................................................................6
Air Ducts...................................................................................7
Installation ......................................................................................8
Leveling Legs (If Desired) .......................................................8
Bottom Closure Panel...............................................................8
Downflow Installation ..............................................................8
Horizontal Attic Installation .....................................................9
Installation in Horizontal Crawlspace Applications ................9
Media Cabinet (PN 325887–701) and Filter Arrangement.....9
Gas Piping.................................................................................9
Electrical Connections ............................................................12
Start-Up, Adjustment, and Safety Check ....................................14
General ....................................................................................14
Sequence of Operation............................................................14
Start-Up Procedures................................................................20
Adjustments.............................................................................23
Check Safety Controls............................................................27
Checklist..................................................................................28
SAFETY CONSIDERATIONS
Installing and servicing heating equipment can be hazardous due to
gas and electrical components. Only trained and qualified
personnel should install, repair, or service heating equipment.
Untrained personnel can perform basic maintenance functions
such as cleaning and replacing air filters.
Observe precautions in the literature, on tags, and on labels
attached to or shipped with the unit and other safety precautions
that may apply.
These instructions cover minimum requirements and conform to
existing national standards and safety codes. In some instances,
these instructions exceed certain local codes and ordinances,
especially those that may not have kept up with changing residen-
tial construction practices. We require these instructions as a
minimum for a safe installation.
Wear safety glasses and work gloves. Have fire extinguisher
available during start-up and adjustment procedures and service
calls.
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, 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 a hazard
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which would 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.
INTRODUCTION
The 312AAV, Series 100 (limited) 4–way multipoise Category I
furnace is CSA (A.G.A. and C.G.A.) design-certified for natural
and propane gas and for installation in alcoves, attics, basements,
closets, utility rooms, crawlspaces, and garages. The furnace is
factory-shipped for use with natural gas. A CSA (A.G.A. and
C.G.A.) listed gas conversion kit is required to convert furnace for
use with propane gas. This furnace is not approved for installation
in mobile homes, recreational vehicles, or outdoors.
These furnaces shall not be installed directly on carpeting, tile, or
any other combustible material other than wood flooring. For
downflow installations, a factory accessory floor base must be
used when installed on combustible materials and wood flooring.
This special base is not required when this furnace is installed on
the manufacturer’s coil assembly, or when the manufacturer’s coil
box is used.
CERTIFIED ®
REGISTERED QUALITY SYSTEM
Installation, Start-up,
and Operating Instructions
2-SPEED, 2-STAGE INDUCED COMBUSTION
DELUXE 4-WAY MULTIPOISE FURNACE
Cancels: New II 312A-91–1
11–00
312AAV
Series
100
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