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Bryant 355MAV EN User Manual

Installation, start-up, and operating instructions, 355mav series d

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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

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