4
A10269
Fig. 2 -- Clearances to Combustibles
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.
60
80 / 27 C
/ 16 C
A06745
Fig. 3 -- Return Air Temperatur e
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.
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, follow all codes and standards for the
following:
Safety
NFPA 54/ANSI Z223.1 and the Installation Standards, Warm Air
Heating and Air Conditioning Systems ANSI/NFPA 90B .
General
Installation
Current edition of the NFGC and the NFPA 90B. For copies,
contact the National Fire Protection Association Inc.,
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