NOTE:
Read the entire instruction manual before starting the
installation.
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indicates a change since the last issue.
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..............................................................4-6
Downflow Applications.........................................................7-8
Horizontal Left (Supply-Air Discharge) Applications .........8-9
Horizontal Right (Supply-Air Discharge) Applications .....9-11
LOCATION ............................................................................11-13
General...............................................................................11-12
Low-Fire Only Installation .....................................................12
Furnace Location Relative to Cooling Equipment ................12
Hazardous Locations...............................................................13
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...........................................17-21
115-v Wiring......................................................................17-18
24-v Wiring........................................................................18-20
Accessories ........................................................................20-21
DIRECT VENTING ...............................................................21-29
Removal of Existing Furnaces from
Common Vent Systems.....................................................21
Combustion-Air and Vent Piping .....................................21-26
Concentric Vent and Combustion-Air Termination
Kit Installation..............................................................26-29
Multiventing and Vent Terminations .....................................29
CONDENSATE DRAIN..............................................................29
General ....................................................................................29
Application ..............................................................................29
Condensate Drain Protection ..................................................29
SEQUENCE OF OPERATION..............................................31-34
Self-Test Mode........................................................................31
Heating Mode ....................................................................31-32
Heating Mode—Two Stage ....................................................32
Emergency Heat Mode ...........................................................32
Cooling Mode .........................................................................32
Heat Pump Mode...............................................................32-33
Continuous Fan Mode ............................................................33
Component Test ......................................................................34
Bypass Humidifier Mode........................................................34
Dehumidification Mode ..........................................................34
Zone Mode ..............................................................................34
START-UP PROCEDURES ..................................................34-42
General ....................................................................................34
Select Setup Switch Positions...........................................34-35
Prime Condensate Trap With Water.................................35-36
Purge Gas Lines......................................................................37
Adjustments .......................................................................37-42
Set Gas Input Rate ............................................................37-41
Set Temperature Rise ........................................................41-42
Set Thermostat Heat Anticipator............................................42
CHECK SAFETY CONTROLS ............................................42-43
Check Primary Limit Control.................................................42
Check Pressure Switch ......................................................42-43
CHECKLIST...........................................................................43-44
A93040
®
ama
CANADIAN GAS ASSOCIATION
A PP R O VED
R
As an ENERGY STAR
SM
Partner, Bryant Heating &
Cooling
Systems
Com-
pany 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
DELUXE 4-WAY MULTIPOISE
VARIABLE-CAPACITY DIRECT-VENT
CONDENSING GAS FURNACE
Cancels:
II 355M-40-4
II 355M-40-5
7-97
355MAV
Series D
—1—
