Bryant 120 instruction manual Installation, Start-up,Operating and, 312A, WayMultipoise Furnace

Models: 120

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312A

312A

2---Stage Deluxe

Induced---Combustion

4---Way Multipoise Furnace

Installation, Start-up, Operating and

Service and Maintenance

Instructions Series 120/C

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . 2

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

CODES AND STANDARDS . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

General Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Combustion and Ventilation Air . . . . . . . . . . . . . . . . . . . . . . 5

Duct Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Acoustical Lining and Fibrous Glass Duct . . . . . . . . . . . . . . . 5

Gas Piping and Gas Pipe Pressure Testing . . . . . . . . . . . . . . . 5

Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS

PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

AIR FOR COMBUSTION AND VENTILATION . . . . . . . . . 8

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

UPFLOW INSTALLATION . . . . . . . . . . . . . . . . . . . . . . 10

DOWNFLOW INSTALLATION . . . . . . . . . . . . . . . . . . . 11

HORIZONTAL INSTALLATION . . . . . . . . . . . . . . . . . . 11

FILTER ARRANGEMENT . . . . . . . . . . . . . . . . . . . . . . . 15

AIR DUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . 21

VENTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

START-UP, ADJUSTMENT, AND SAFETY CHECK . . . . . 35

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Start-Up Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Check Safety Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

SERVICE AND MAINTENANCE PROCEDURES . . . . . 45

Introdution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

2---Stage Deluxe4---Way Multipoise FurnaceamaInstallation, Start-up, Operating andService and Maintenance

ISO 9001:2000

CERTIFIED

REGISTERED

NOTE: Read the entire instruction manual before starting the installation.

Portions of the text and tables are reprinted from NFPA 54/ANSI Z223.1-2006E, with permission of National Fire Protection Association, Quincy, MA 02269 and American Gas Association, Washington DC 20001. This reprinted material is not the complete and official position of the NFPA or ANSI on the referenced subject, which is represented only by the standard in its entirety.

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Bryant instruction manual Installation, Start-up,Operating and, Service and Maintenance Instructions Series 120/C, 312A