Installation guide

improper adjustment, alteration, service,
maintenance, or installation can cause
serious injury or death.
Read and follow instructions and
precautions in User's Information Manual
provided with this furnace. Installation
and service must be performed by a
qualified service agency or the gas
supplier.
Check entire gas assembly for leaks after
lighting this appliance.
iNSTALLATION
1. This furnace must be installed in
accordance with the manufacturer's
instructions and local codes. In the
absence of local codes, follow the National
Fuel Gas Code ANSI Z223.1 / NFPA54
or CSA B-149. 1 Gas Installation Code.
2. This furnace must be installed so there are
provisions for combustion and ventilation
air. See manufacturer's installation
information provided with this appliance.
OPERATION
This furnace is equipped with manual reset
limit switch(es) in burner compartment to
protect against overheat conditions that
can result from inadequate combustion air
supply or blocked vent conditions.
1. Do not bypass limit switches.
2. If a limit opens, call a quallified
serviceman to correct the condition
and reset limit switch.
MiNiMUMiNCHESCLEARANCETO COMBUSTIBLECONSTRUCTION
This forced air furnace is
equipped for use with natural
gas at altitudes 0 - 10,000 ft
(0 - 3,050m).
An accessory kit, supplied by
the manufacturer, shall be used
to convert to propane gas use
or may be required for some
natural gas applications.
This furnace is for indoor
installation in a building
constructed on site.
This furnace may be installed
on combustible flooring in alcove
or closet at minimum clearance
as indicated by the diagram
from combustible material.
This furnace may be used with
a Type B-1 Vent and may be
vented in common with other
gas fired appliances.
This furnace is approved for
UPFLOW, DOWNFLOW, and
HORIZONTAL installations.
Clearancearrows
do notchangewith
furnaceorientation.
Clearancein inches
Vent Clearance to combustibles:
For SingleWall vents 6 inches(6 po).
ForType B-1 venttype I inch (1 po).
MINIMUM INCHES CLEARANCE TO
COMBUSTIBLE CONSTRUCTION
DOWNFLOWPOSiTiONS:
Installation on non-combustible floors only.
For Installation on combustible flooring only when installed on special
base, Part No. KGASB0201ALL or NAHA01101SB, Coil Assembly,
Part No. CAR, CAP, CNPV, CNRV, END4X, ENW4X, WENC, WTNC,
WENW OR WTNW.
18 inches front clearance required for alcove.
1-
O
Indicates supply or return sides when furnace is in the horizontal
position. Line contact only permissible between lines formed by
intersections of the Top and two Sides of the furnace jacket,
and building joists, studs or framing.
IIIIIIIIIIIIIIIIIIIIIIIIIII
336996-161 REV. C
Fig. 2 - Clearances to Combustibles
A10269
FRONT
o
! MAX80°F/27C
__ :_ MIN60°F/16C
A06745
Fig. 3 - Return Air Temperature
INTRODUCTION
This 4-way nmltipoise 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 (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
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 nmst 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:
Step 1 mSafety