INTRODUCTION
The Model 58YAV, Series A Furnace is available in sizes 66,000
through 154,000 Btuh input capacities.
The design of the upflow gas-fired furnace is CSA (A.G.A. and
C.G.A.) certified for natural and propane gas and for installation
on combustible flooring, in alcoves, attics, basements, closets, or
utility rooms. The furnace is factory-shipped for use with natural
gas. A factory accessory gas conversion kit, as listed on the
furnace rating plate is required to convert furnace for use with
propane gas. The design of this furnace line is not CSA (A.G.A.
and C.G.A.) certified for installation in mobile homes, recreation
vehicles, or outdoors.
Before installing the furnace in the United States, refer to the
current edition of the NFGC and the NFPA 90B. For copies of the
NFGC and NFPA 90B, 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 St., NW, Washington DC 20001.
Before installing the furnace in Canada, refer to the NSCNGPIC.
For a copy of the NSCNGPIC, contact Standard Sales, CSA
International, 178 Rexdale Boulevard, Etobicoke (Toronto), On-
tario, M9W 1R3, Canada.
Installation must comply with regulations of serving gas supplier
and local building, heating, plumbing or other codes in effect in the
area in which installation is made. In absence of local building
codes, installation must comply with NFGC in the United States
and the NSCNGPIC and all authorities having jurisdiction in
Canada.
These instructions cover minimum requirements for a safe instal-
lation and conform to existing national standards and safety codes.
In some instances, these instructions exceed certain local codes
and ordinances, especially those that may not have kept pace with
changing residential construction practices. We require these
instructions as a minimum for a safe installation.
Application of this furnace should be indoors with special
attention given to vent sizing and material, gas input rate, air
temperature rise, and unit sizing. Improper installation or
misapplication of the furnace can require excessive servicing
or cause premature component failure.
This furnace is designed for a minimum continuous return-air
temperature of 60°F db or an intermittent operation down to 55°F
db such as when used with a night setback thermostat. Return-air
temperature must not exceed a maximum of 85°F db.
Fig. 2—Clearances to Combustibles
A00299
For furnaces wider than 14.25 inches (362mm) may be 0 inches.
For single wall vent 6 inches. For Type B-1 vent 3 inches.
3
256
87
-1
01
R
E
V
. A
(
lit
)
#
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 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.
Clearance in inches
BO
T
T
O
M
1" #
0"
1"
1"
30"
MIN
S I
DE
F R
ON
T
B
C K
A
S E
R VI
E
C
FR
ON
T
S I
E
U
F
RN
AC
E
#
T
O
P /
PL
E
N
U
M
D
##
##
INSTALLATION WITH CHIMNEY ADAPTER KIT
This furnace is approved for UPFLOW installations only.
Vent Clearance to combustibles:
For Single Wall vents 6 inches.
For Type B-1 vent 1 inch .
MINIMUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION
0"
Chimney Adapter Kit No. KGACA01014FC or No. KGACA01015FC may
be required for some exterior masonry chimney applications. See
Installation Instructions, Single-Stage Vent Tables For Category I
Fan-Assisted Furnaces.
A99075
FRONT
RETURN
AIR
MAX 85
°
F
MIN 55
°
F
°
F
°
F
3
