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INTRODUCTION
This 4- -way multipoise Category I fan- -assisted furnace is CSA
(formerly A.G.A. and C.G.A.) design- -certified. A Category I
fan- -assisted furnace is an appliance equipped with an integral
mechanical means to either draw or force products of combustion
through the combustion chamber and/or heat exchanger. The
furnace is factory- -shipped for use with natural gas. This furnace
is not approved for installation in mobile homes, recreational
vehicles, or outdoors.
Fig. 3 - - Return Air Temperature
This furnace is designed for minimum continuous return- -air
temperature of 60_F (15_C) db or intermittent operation down to
55_F (13_C)db such as when used with a night setback
thermostat. Return- -air temperature must not exceed 80_F (27_C)
db. Failure to follow these return- -air temperature limits may
affect reliability of heat exchangers, motors, and controls. (See
Fig. 3.)
For accessory installation details, refer to the applicable
instruction literature.
NOTE:
Remove all shipping brackets and materials before
operating the furnace.
THE BLOWER IS LOCATED
TO THE RIGHT OF THE
BURNER SECTION, AND
AIR CONDITIONED AIR IS
DISCHARGED TO THE LEFT.
THE BLOWER IS
LOCATED ABOVE THE
BURNER SECTION, AND
CONDITIONED AIR IS
DISCHARGED DOWNWARD
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, follow all codes and standards for the
following:
Safety
NFPA 54/ANSI Z223.1 and the Installation Standards, Warm Air
80
/ 27 C
Heating and Air Conditioning Systems ANSI/NFPA 90B .
General Installation
Current edition of the NFGC and the NFPA 90B. For copies,
contact
Batterymarch Park, Quincy, MA 02269; (www.NFPA.org) or for
only the NFGC, contact the American Gas Association, 400 N.
Capitol Street, N.W., Washington, DC 20001 (www.AGA.org.) .
Combustion and Ventilation Air
Section 9.3 NFPA 54/ANSI Z223.1, Air for Combustion and
60
/ 16 C
Ventilation .
Duct Systems
Air Conditioning Contractors Association (ACCA) Manual D,
Sheet Metal and Air Conditioning Contractors National
A06745
Association (SMACNA), or American Society of Heating,
Refrigeration, and Air Conditioning Engineers (ASHRAE) 2001
Fundamentals Handbook Chapter 35 or 2005 HVAC Systems
and Equipment Handbook Chapters 9 and 16.
Acoustical Lining and Fibrous Glass Duct
Current edition of SMACNA and NFPA 90B as tested by UL
Standard 181 for Class I Rigid Air Ducts
Gas Piping and Gas Pipe Pressure Testing
NFPA 54/ANSI Z223.1 ; chapters 5, 6, and 7 and National
Plumbing Codes .
Electrical Connections
National Electrical Code (NEC) ANSI/NFPA70 .
Venting
NFPA 54/ANSI Z223.1; chapters 12 and 13.
Fig. 4 - - Multipoise Orientations
5
CODES AND STANDARDS
the
National
Fire
Protection
THE BLOWER IS
LOCATED BELOW THE
BURNER SECTION, AND
CONDITIONED AIR IS
DISCHARGED UPWARD.
THE BLOWER IS
LOCATED TO THE LEFT
OF THE BURNER SECTION,
AND CONDITIONED AIR IS
DISCHARGED TO THE RIGHT.
Association
Inc.,
A02097
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