CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in death
or personal injury.
Do not operate the furnace with the rain cap
removed as recirulation of the flue gases may
occur. Water may also collect inside the larger
combustion air pipe and flow to the burner
enclosure.
6,
Install the Y concentric fitting and the pipe assembly through
the structure's hole. For vertical termination, install the parts
through the field supplied roof boot/flashing. NOTE: Do not
allow insulation or other materials to accumulate inside the
pipe assembly when installing through the structure's hole.
7. Secure the assembly tothe structure as shown in Figure 31
or Figure 35 using field supplied metal strapping or equiva-
lent material.
NOTE: Ensure the termination height is above the roof sur-
face or anticipated snow level as shown in Figure 31 for
vertical termination. Ensure the termination location clear-
ance dimensions are as shown in Figure 34 and Figure 35
for horizontal termination.
8,
Install the rain cap and the small diameter pipe assembly in
the Y concentric fitting and the large pipe assembly. Ensure
that the small diameter pipe is bottomed out and securely
cemented in the Y concentric fitting.
9. Cement the furnace combustion air and vent pipes to the
concentric vent termination assembly. See Figure 34 or
Figure 35 for proper pipe attachment.
10. Operate the furnace through one heat cycle to ensure com-
bustion air and vent pipes are properly connected to the
concentric termination connections.
Concentric Vent and Combustion-
Air Side Termination
Roof Overhang
Maintain12" clearanceabove highestantici-
patedsnow levelor gradewhichever is greater.
25-22-02
Concentric Vent Sidewall
Attachment
Vent
Combustion
Air
Note:
Strap
(Field Supplied) Y///_ Combustion
S ,
1" max.
45° Elbow _-:_c_-:
(FieldSupplied) ...... 25-22-02
Securing strap must be field installed to prevent movement of termination kit in side wall.
6. Gas Supply and Piping
CARBON MONOXIDE POISONING, FIRE AND
EXPLOSION HAZARD.
Failure to follow these instructions could result in
death, personal injury and/or property damage.
Models designated for Natural Gas are to be used
1. Properly size gas pipe to handle combined appliance load
or run gas pipe directly from gas meter or LP gas regulator.
Refer to NFGC and ANSI Z223.1 for proper gas pipe size.
2. Install correct pipe size for run length and furnace rating.
3. Measure pipe length from gas meter or LP second stage
regulator.
NOTE: In the state of Massachusetts:
with Natural Gas ONLY, unless properly converted to
use with LP gas.
NOTE: The rating plate is stamped with the model number, gas
type and gas input rating. In addition, models manufactured for
sale in Canada have orifice size information stamped on the rating
1. Gas supply connectors MUST be performed by a licensed
plumber or gas fitter.
2. When flexible connectors are used, the maximum length
shall not exceed 36" (915 mm).
3. When lever handle type manual equipment shut off valves
are used, they shall be T-handle valves.
4. The use of copper tubing for gas piping is NOT approved by
the state of Massachusetts.
plate.
Gas Piping Requirements
NOTE: The gas supply line must be installed bya qualified service
technician in accordance with all building codes.
NOTE: Refer to Figure 36 or Figure 37 for the general layout at
the furnace. The rules listed apply to natural and LP gas pipe
installations.
NOTE: On the Dual Certified or Direct Vent models, install the gas
pipe grommet to the furnace side panel with the gas pipe entry. If
needed, remove the 2" hole plug and relocate to the open hole in
the furnace side .panel.
44001 102102
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