CODES AND STANDARDS. Bryant 345MAV, Series F

is used to identify unsafe practices which would result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

The 345MAV Multipoise Condensing Gas-Fired Furnaces are

CSA (formerly AGA and CGA) design-certified for natural and propane gases (see furnace rating plate) and for installation in alcoves, attics, basements, closets, utility rooms, crawlspaces, and garages. The furnace is factory-shipped for use with natural gas. A

CSA (formerly AGA and CGA) listed gas conversion kit is required to convert furnace for use with propane gas.

See Fig. 3 for required clearances to combustibles.

Maintain a 1-in. clearance from combustible materials to supply air ductwork for a distance of 36 inches horizontally from the furnace.

See NFPA 90B or local code for further requirements.

These furnaces SHALL NOT be installed directly on carpeting, tile, or any other combustible material other than wood flooring. In downflow installations, factory accessory floor base MUST be used when installed on combustible materials and wood flooring.

Special base is not required when this furnace is installed on manufacturer’s Coil Assembly Part No. CD5 or CK5, or when Coil

Box Part No. KCAKC is used.

The design of this furnace is NOT CSA (formerly AGA and CGA) design-certified for installation in recreation vehicles or outdoors.

This furnace is designed for continuous return-air minimum temperature of 60°F db or intermittent operation down to 55°F db such as when used with a night setback thermostat. Return-air temperature must not exceed 85°F db. Failure to follow these return-air limits may affect reliability of heat exchangers, motors, and controls. (See Fig. 4.)

These furnaces are shipped with the drain and pressure tubes connected for UPFLOW applications. Minor modifications are required when used in DOWNFLOW, HORIZONTAL RIGHT, or

HORIZONTAL LEFT (supply-air discharge direction) applications as shown in Fig. 1. See details in Applications section.

These furnaces are shipped with the following materials to assist in proper furnace installation. These materials are shipped in the main blower compartment.

Fig. 4—Return-Air Temperature

A94163

—4—

Installer Packet includes:

Installation, Startup, and Operating Instructions

Service and Maintenance Instructions

User’s Information Manual

Warranty Certificate

Loose Parts Bag includes:

Pressure tube extension

Collector Box or condensate trap extension tube

Inducer housing drain tube

1/2-in CPVC street elbow

Drain tube coupling

Drain tube coupling grommet

Vent and combustion-air pipe support

Condensate trap hole filler plug

Vent and combustion-air intake hole filler plug

Combustion-air pipe perforated disk assembly

Vent Pipe Extension

* ONLY supplied with some furnaces.

Quantity

1

1

1

2

1

1

2

1

2

3

1*

CODES AND STANDARDS

Follow all national and local codes and standards in addition to

these instructions. The installation must comply with regulations of the serving gas supplier, local building, heating, plumbing, and other codes. In absence of local codes, the installation must comply with the national codes listed below and all authorities having jurisdiction.

In the United States and Canada, follow all codes and standards for the following:

I.

SAFETY

• US: National Fuel Gas Code (NFGC) NFPA 54-2002/ANSI

Z223.1-2002 and the Installation Standards, Warm Air Heating and Air Conditioning Systems ANSI/NFPA 90B

• CANADA: National Standard of Canada, Natural Gas and

Propane Installation Code (NSCNGPIC) CSA B149.1-00.

II.

GENERAL INSTALLATION

• US: NFGC and the NFPA 90B. For copies, contact the National

Fire Protection Association Inc., Batterymarch Park, Quincy,

MA 02269; or for only the NFGC contact the American Gas

Association, 400 N. Capitol, N.W., Washington DC 20001

• CANADA: NSCNGPIC. For a copy, contact Standard Sales,

CSA International, 178 Rexdale Boulevard, Etobicoke

(Toronto), Ontario, M9W 1R3, Canada.

III.

COMBUSTION AND VENTILATION AIR

• US: Section 5.3 of the NFGC, Air for Combustion and

Ventilation

• CANADA: Part 7 of the NSCNGPIC, Venting Systems and Air

Supply for Appliances

IV.

DUCT SYSTEMS

• US and CANADA: Air Conditioning Contractors Association

(ACCA) Manual D, Sheet Metal and Air Conditioning Contractors National Association (SMACNA), or American Society of Heating, Refrigeration, and Air Conditioning Engineers

(ASHRAE) 2001 Fundamentals Handbook Chapter 34.

V.

ACOUSTICAL LINING AND FIBROUS GLASS DUCT

• US and CANADA: current edition of SMACNA, NFPA 90B as tested by UL Standard 181 for Class I Rigid Air Ducts

VI.

GAS PIPING AND GAS PIPE PRESSURE TESTING

• US: NFGC; chapters 2, 3, 4, and 9 and national plumbing codes

• CANADA: NSCNGPIC Parts 3, 4, 5, A, B, E, and H.

VII.

ELECTRICAL CONNECTIONS

• US: National Electrical Code (NEC) ANSI/NFPA 70-2002

• CANADA: Canadian Electrical Code CSA C22.1