20
CLEARANCE TO COMBUSTIBLES
Clearance in inches.
Vent clearance to
combustibles 0".
This furnace is approved for UPFLOW installation only.
*
BO
TT
O
M
0"
fl
3"
0"
0"
TO
P/
PLE
NU
1"
0"
30
MIN
UPFLOW POSITIONS:
S I
DE
F R
O N
T
B
C K
A
S E
R VI
E
C
FR
ON
T
S I
DE
U
F
R N
A C
E
MINIMUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION
*
Mimimum front clearance for service 30 inches (762mm).
This forced air furnace is equipped for use with natural gas at altitudes 0 - 10,000 ft (0 - 3,050m), except 140 size furnaces are only approved for altitudes 0 - 7,000 ft.
(0 - 2,135m).
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 in a manufactured (mobile) home when stated on rating plate and
using factory authorized kit.
This furnace may be installed on combustible flooring in alcove or closet at
Minimum Inches Clearance To Combustible Construction
as described below.
This furnace requires a special venting system. Refer to the installation instructions for parts list and method of installation. This furnace is for use with schedule-40 PVC,
PVC-DWV, CPVC, or ABS-DWV pipe, and must not be vented in common with other gas-fired appliances. Construction through which vent/air intake pipes may be
installed is maximum 24 inches (600 mm), minimum 3/4 inches (19 mm) thickness (including roofing materials).
UPFLOW
1/2" MAX
LEVEL (0")TO
Upflow and downflow applications, furnace must be installed level, or pitched within 1/2" of level.
FRONT
INSTALLATION
See Installation Manual for IMPORTANT unit support details on horizontal applications.
A06514
58U
VB
