12
AIR
DISCHARGE
AIR
DISCHARGE
AIR
DISCHARGE
Bottom
Return
Duct
Connection
Bottom
Return
Duct
Connection
Bottom
Return
Duct
Connection
Side
Return
Duct
Connection
Side
Return
Duct
Connection
UPFLOW
UPRIGHT
UPFLOW HORIZONTAL
RIGHT AIR DISCHARGE
UPFLOW HORIZONTAL
LEFT AIR DISCHARGE
ALTERNATE FLUE AND
COMBUSTION AIR PIPE
LOCATIONS
ALTERNATE FLUE AND
COMBUSTION AIR PIPE
LOCATIONS
AIR
DISCHARGE
AIR
DISCHARGE
AIR
DISCHARGE
Bottom
Return
Duct
Connection
Bottom
Return
Duct
Connection
Bottom
Return
Duct
Connection
COUNTERFLOW
UPRIGHT
COUNTERFLOW HORIZONTAL
RIGHT AIR DISCHARGE
COUNTERFLOW HORIZONTAL
LEFT AIR DISCHARGE
ALTERNATE FLUE AND
COMBUSTION AIR PIPE
LOCATIONS
ALTERNATE FLUE AND
COMBUSTION AIR PIPE
LOCATIONS
Recommended Installation Positions
NOTE:
Alternate “vertical” piping connections can not be used when
an upflow furnace is installed with supply air discharging to the right,
or when a counterflow furnace is installed with supply air discharging
to the left. In either case, use the standard flue and combustion air
piping connections.
A
LTERNATE
E
LECTRICAL
AND
G
AS
L
INE
C
ONNECTIONS
This furnace has provisions allowing for electrical and gas line
connections through either side panel. In horizontal applications
the connections can be made either through the “top” or “bottom” of
the furnace.
D
RAIN
P
AN
A drain pan must be provided if the furnace is installed above a
conditioned area. The drain pan must cover the entire area under
the furnace (and air conditioning coil if applicable).
F
REEZE
P
ROTECTION
Refer to
Section VII, Horizontal Applications and Conditions - Drain
Trap and Lines.
F
URNACE
S
USPENSION
If the furnace is installed in a crawl space it must be suspended from
the floor joist or supported by a concrete pad. Never install the fur-
nace on the ground or allow it to be exposed to water. Refer to
Section IV, Location Requirements and Considerations - Furnace
Suspension
for further details.
VIII. PROPANE GAS /HIGH ALTITUDE INSTALLATIONS
WARNING
P
OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH MAY OCCUR IF
THE CORRECT CONVERSION KITS ARE NOT INSTALLED.
T
HE APPROPRIATE KITS
MUST BE APPLIED TO INSURE SAFE AND PROPER FURNACE OPERATION.
A
LL
CONVERSIONS MUST BE PERFORMED BY A QUALIFIED INSTALLER OR SERVICE
AGENCY.
This furnace is shipped from the factory configured for natural gas
at standard altitude. Propane gas installations require an orifice
change to compensate for the energy content difference between
natural and propane gas.
High altitude installations may require both a pressure switch and an
orifice change. These changes are necessary to compensate for
the natural reduction in the density of both the gas fuel and the com-
bustion air at higher altitude.
For installations above 7000 feet, please refer to your distributor for
required kit(s).
Altitude
Gas
Kit
Orifice
Manifold
Pressure
Pressure
Switch
NOTE: In Canada, gas furnaces are certified to 4500 feet.
0-7000
None
LPT-00A
#43
#55
3.5" w.c.
10.0" w.c.
None
HIGH ALTITUDE GAS ORIFICE CHART
Natural
Propane
Contact the distributor for a tabular listing of appropriate
manufacturer’s kits for propane gas and/or high altitude installa-
tions. The indicated kits must be used to insure safe and proper
furnace operation. All conversions must be performed by a quali-
fied installer, or service agency.
IX. VENT/FLUE PIPE & COMBUSTION AIR PIPE
G
ENERAL
WARNING
F
AILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN BODILY INJURY OR
DEATH.
C
AREFULLY READ AND FOLLOW ALL INSTRUCTIONS GIVEN IN THIS
SECTION.
WARNING
U
PON COMPLETION OF THE FURNACE INSTALLATION, CAREFULLY INSPECT THE
ENTIRE FLUE SYSTEM BOTH INSIDE AND OUTSIDE THE FURNACE TO ASSURE IT
IS PROPERLY SEALED.
L
EAKS IN THE FLUE SYSTEM CAN RESULT IN SERIOUS
PERSONAL INJURY OR DEATH DUE TO EXPOSURE TO FLUE PRODUCTS,
INCLUDING CARBON MONOXIDE.
A condensing gas furnace achieves its high level of efficiency by
extracting almost all of the heat from the products of combustion
and cooling them to the point where condensation takes place. Be-
cause of the relatively low flue gas temperature and water conden-
sation requirements, PVC pipe is used as venting material.
This furnace must not be connected to Type B, BW, or L vent or vent
connector, and must not be vented into any portion of a factory built
or masonry chimney except when used as a pathway for PVC as
described later in this section. Never common vent this appliance
with another appliance or use a vent which is used by a solid fuel
appliance. Do not use commercially available “no hub connectors”
other than those shipped with this product.
It is the responsibility of the installer to follow the manufacturers’
recommendations and to verify that all vent/flue piping and connec-
tors are compatible with furnace flue products. Additionally, it is the
responsibility of the installer to ensure that all piping and connec-
tions possess adequate structural integrity and support to prevent
flue pipe separation, shifting, or sagging during furnace operation.
