Bryant Deluxe 4-Way Multipoise Variable-Capacity Direct-Vent Condensing Gas 355MAV - Manual

NOTE: Read the entire instruction manual before starting the
installation.
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Index Page
DIMENSIONAL DRAWING........................................................3
SAFETY CONSIDERATIONS..................................................2-5
Clearances to Combustibles......................................................4
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS........5
INTRODUCTION ..........................................................................5
APPLICATIONS ......................................................................5-12
General ......................................................................................5
Upflow Applications..............................................................5-8
Downflow Applications.........................................................8-9
Horizontal Left (Supply-Air Discharge) Applications .......9-11
Horizontal Right (Supply-Air Discharge) Applications ...11-12
LOCATION ............................................................................13-14
General ....................................................................................13
Low-Heat Only Installation ....................................................13
Furnace Location Relative to Cooling Equipment ................14
Hazardous Locations...............................................................14
INSTALLATION....................................................................14-16
Leveling Legs (If Desired) .....................................................14
Installation In Upflow or Downflow Applications................14
Installation In Horizontal Applications.............................14-16
AIR DUCTS............................................................................16-19
General Requirements .......................................................16-17
Ductwork Acoustical Treatment.............................................17
Supply Air Connections..........................................................17
Return Air Connections ..........................................................17
Filter Arrangement..................................................................17
Bottom Closure Panel........................................................17-18
Gas Piping..........................................................................18-19
ELECTRICAL CONNECTIONS...........................................19-21
115-v Wiring...........................................................................19
24-v Wiring.............................................................................20
Accessories ........................................................................20-21
DIRECT VENTING ...............................................................21-31
Removal of Existing Furnaces from
Common Vent Systems.....................................................21
Combustion-Air and Vent Piping .....................................21-29
Concentric Vent and Combustion-Air Termination
Kit Installation ...................................................................29
Multiventing and Vent Terminations................................29-31
CONDENSATE DRAIN..............................................................31
General ....................................................................................31
Application ..............................................................................31
Condensate Drain Protection ..................................................31
SEQUENCE OF OPERATION..............................................31-36
Single-Stage Thermostat and Two-Stage Heating
(Adaptive Mode)................................................................33-34
Two-Stage Thermostat and Two-Stage Heating....................34
Cooling Mode ....................................................................34-35
Thermidistat Mode..................................................................35
Super-Dehumidify Mode...................................................35-36
Continuous Blower Mode.......................................................36
Heat Pump...............................................................................36
Component Test ......................................................................36
START-UP PROCEDURES ..................................................36-45
General ....................................................................................36
Select Setup Switch Positions...........................................36-39
Prime Condensate Trap With Water ......................................39
Purge Gas Lines......................................................................39
Adjustments .......................................................................39-45
Set Gas Input Rate ............................................................39-42
Set Temperature Rise..............................................................42
Set Thermostat Heat Anticipator ......................................42-45
CHECK SAFETY CONTROLS ............................................45-46
A93040
ama
CERTIFIED
As an ENERGY STAR®
Partner, Bryant Heating &
Cooling Systems has de-
termined that this product
meets
the ENERGY
STAR® guidelines for en-
ergy efficiency.
REGISTERED QUALITY SYSTEM
Fig. 1—Multipoise Orientations
A93041
UPFLOW
DOWNFLOW
HORIZONTAL
LEFT
AIRFLOW AIRFLOW
AIRFLOW
AIRFLOW
HORIZONTAL
RIGHT
installation, start-up,
and operating instructions
DELUXE 4-WAY MULTIPOISE
VARIABLE-CAPACITY DIRECT-VENT
CONDENSING GAS FURNACE
Cancels: II 355M-40-9 II 355M-40-10
12-02
355MAV
Series H
—1—