Introduction; Codes And Standards; Safety - International comfort products N8MXL Installation Instructions Manual

INTRODUCTION

N8MXN 4−way multipoise Category I fan−assisted furnace is
CSA 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. This furnace is designed
for minimum continuous return−air temperature of 60_F

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.
4
(16_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
Figure 3).
For accessory installation details, refer to the applicable
instruction literature.
NOTE: Remove all shipping brackets and materials before
operating the furnace.
Figure 2 − Clearances to Combustibles
In the United States, follow all codes and standards for the
following:

Safety

Specifications are subject to change without notice.
S
USA: National Fuel Gas Code (NFGC) NFPA
54−2012/ANSI Z223.1−2012 and the Installation
Standards, Warm Air Heating and Air Conditioning
Systems ANSI/NFPA 90B
441 01 1421 01