Canadian Venting Requirements; Standard Furnace Connections; Vent /Flue Pipe; Combustion Air Pipe - Maytag Amana CVC96 Series Installation Instructions Manual

• The vent termination of a direct vent application must terminate at least 12 inches from any opening through which flue
gases may enter a building (door, window, or gravity air inlet).
• The vent termination of vent pipe run vertically through a roof must terminate at least 12 inches above the roof line (or the
anticipated snow level) and be at least 12 inches from any
vertical wall (including any anticipated snow build up).
• A vent termination shall not terminate over public walkways
or over an area where condensate or vapor could create a
nuisance or hazard or could be detrimental to the operation
of regulators, relief valves, or other equipment.
• The combustion air intake termination of a direct vent
application should not terminate in an area which is
frequently dusty or dirty.
NOTE: In Canada, the Canadian Fuel Gas Code takes precedence
over the preceding termination restrictions.
C V R
ANADIAN ENTING EQUIREMENTS
In Canada, venting must conform to the requirements of the
current CAN/CSA-B149.1-05 Installation Code. Use only CSA-listed,
ULC-S636 compliant two- or three-inch diameter PVC or ABS pipe,
solvent cement, and fittings throughout. The certified piping
should be clearly marked with the ULC Std "S636" on the pipe and
fittings. Carefully follow the pipe manufacturers' instructions for cutting, cleaning, and solvent cementing PVC and/or ABS.
The vent can be run through an existing unused chimney provided the space between the vent pipe and the chimney is insulated and
closed with a weather-tight, corrosion-resistant flashing.
S F C
TANDARD URNACE ONNECTIONS
It is the responsibility of the installer to ensure that the piping connections to the
furnace are secure, airtight, and adequately supported.
V /F P
ENT LUE IPE
The vent pipe outlet is sized to accept 2" pipe. Secure vent/flue pipe directly
into the furnace fitting with the appropriate glue. Alternately, a small section
of 2" pipe may be glued in the furnace socket and a rubber coupling installed to
allow removal for future service. Combustion Air and Vent piping should be
routed in a manner to avoid contact with refrigerant lines, metering devices,
condensate drain lines, etc.
creating an offset using two 45 degree elbows. This joint can be rotated on the
fitting to establish maximum clearance between refrigerant lines, metering
devices, and condensate drain lines, etc. This joint is the equivalent of one 90
deg. elbow when considering elbow count. (See Figure 9A)
NOTE: For non-direct vent installations, a minimum of one 90° elbow should be
installed on the combustion air intake coupling to guard against inadvertent
blockage.
C A P
OMBUSTION IR IPE
D V I
IRECT ENT NSTALLATIONS
On upflow units secure the combustion air intake pipe to the air intake coupling by using a
take apart rubber coupling supplied with the furnace or a plastic coupling. Also, the
intake coupling may be inverted to allow the intake pipe to be glued directly to it. After
inverting the coupling, secure it to the furnace top with screws. On counterflow units
secure the combustion air intake pipe to the air intake coupling using the rubber coupling and
worm gear hose clamps provided with the unit. The counterflow rubber coupling allows ser-
vice removal of air intake piping internal to the furnace blower compartment. The combus-
tion air intake pipe can also be secured directly to the counterflow unit air intake pipe coupling.
If necessary, clearances may be increased by
Non-Direct Vent
&
Direct Vent
Vent/Flue Terminations
Grade or Highest
Anticipated
Snow Level
12" min.
Forced Air
Inlet
Direct Vent
Vent/Flue Termination
14
Non-Direct Vent
Vent/Flue Termination
No Terminations
Above Walkway
4'
min.
12" min.
Vent/Flue Termination
Vent Termination Clearances
Figure 7
45 DEGREE
LONG-SWEEP
ELBOWS
Increased Clearance Configuration
Figure 9A
VENT-DRAIN
Figure 9B
4' min.
Non-Direct Vent