Bryant 4-Way Multipoise Fixed-Capacity Direct-Vent Condensing Gas 340MAV User's Manual
NOTE: Read the entire instruction manual before starting the
installation.
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Index
Page
DIMENSIONAL DRAWING........................................................2
SAFETY CONSIDERATIONS .....................................................3
Clearances to Combustibles......................................................3
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ....3-4
INTRODUCTION ..........................................................................4
APPLICATIONS ......................................................................4-11
General ......................................................................................4
Upflow Applications..............................................................4-7
Downflow Applications.........................................................7-8
Horizontal Left (Supply-Air Discharge) Applications .........8-9
Horizontal Right (Supply-Air Discharge) Applications .....9-11
LOCATION ............................................................................11-12
General...............................................................................11-12
Furnace Location Relative to Cooling Equipment ................12
Hazardous Locations...............................................................12
INSTALLATION....................................................................13-17
Leveling Legs (If Desired) .....................................................13
Installation In Upflow or Downflow Applications ..........13-15
Installation In Horizontal Applications ..................................15
Filter Arrangement..................................................................16
Bottom Closure Panel.............................................................16
Gas Piping...............................................................................17
ELECTRICAL CONNECTIONS...........................................17-20
115-v Wiring......................................................................17-18
24-v Wiring.............................................................................18
Wiring Diagram ......................................................................19
Accessories..............................................................................20
DIRECT VENTING ...............................................................21-29
Removal of Existing Furnaces from
Common Vent Systems.....................................................21
Combustion-Air and Vent Piping .....................................21-27
Concentric Vent and Combustion-Air Termination
Kit Installation..............................................................27-29
Multiventing and Vent Termination.......................................29
CONDENSATE DRAIN ........................................................29-31
General ....................................................................................29
Application.........................................................................29-31
Condensate Drain Protection ..................................................31
SEQUENCE OF OPERATION..............................................31-33
Heating Mode ....................................................................31-32
Cooling Mode .........................................................................32
Continuous Blower Mode.......................................................32
Heat Pump Mode ....................................................................32
Component Test.................................................................32-33
START-UP PROCEDURES ..................................................33-41
General ....................................................................................33
Prime Condensate Trap With Water ......................................33
Purge Gas Lines......................................................................34
Adjustments .......................................................................34-41
Set Gas Input Rate ............................................................34-40
Set Temperature Rise ........................................................40-41
Blower Off Delay (Heat Mode) .............................................41
Set Thermostat Heat Anticipator............................................41
CHECK SAFETY CONTROLS..................................................41
Check Primary Limit Control.................................................41
Check Pressure Switch ...........................................................41
CHECKLIST...........................................................................41-42
A93040
®
ama
CANADIAN GAS ASSOCIATION
A PP R O VED
R
As an ENERGY STAR
SM
Partner,
Bryant/Day
&
Night has determined that
this product meets the EN-
ERGY STAR guidelines
for energy efficiency.
CERTIFICATION OF MANUFACTURING SITE
Fig. 1—Multipoise Orientations
A93041
UPFLOW
DOWNFLOW
HORIZONTAL
LEFT
AIRFLOW
AIRFLOW
AIRFLOW
AIRFLOW
HORIZONTAL
RIGHT
installation, start-up,
and operating instructions
4-WAY MULTIPOISE
FIXED-CAPACITY DIRECT-VENT
CONDENSING GAS FURNACE
Cancels:
II 340M-40-3
II 340M-40-4
12-96
340MAV
Series D
—1—
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