22
Termination of Multiple Direct Vent Furnaces
3” MIN
12” MIN TO GRADE OR HIGHEST
ANTICIPATED SNOW LEVEL
3”MIN
24”MAX
12” MIN SEPARATION
Figure 19
C
ONCENTRIC
V
ENT
T
ERMINATION
Refer to the directions provided with the Concentric Vent Kit
(DCVK) for installation specifications.
S
IDE
W
ALL
V
ENT
K
IT
Ve rtica l Installation
H orizontal Ins tallation
Figure 20
This kit is to be used with 2” or 3” direct vent systems. The
vent kit must terminate outside the structure and may be
installed with the intake and exhaust pipes located side-by-
side or with one pipe above the other. These kits are
NOT
intended for use with single pipe (indirect vent) installations.
Refer to the directions furnished with the Side Wall Vent
Kit (p/n 0170K00000S or 0170K00001S) for installation
specifications.
C
ONDENSATE
D
RAIN
L
INES
& D
RAIN
T
RAP
A condensing gas furnace achieves its high level of efficiency by
extracting heat from the products of combustion to the point
where condensation takes place. The condensate must be col-
lected in the furnace drain trap and routed to an appropriate
drain location in compliance with local and national codes.
Follow the bullets listed below when installing the drain system.
Refer to the following sections for specific details concerning
furnace drain trap installation and drain hose hook ups.
•
The drain trap supplied with the furnace must be
used.
•
The drain trap must be primed at time of
installation.
•
The drain line between furnace and drain location
must meet local and nation codes.
•
The drain line between furnace and drain location
must maintain a 1/4 inch per foot downward slope
toward the drain.
•
Do not trap the drain line in any other location than at
the drain trap supplied with the furnace.
•
If the drain line is routed through an area which may
see temperatures near or below freezing, precautions
must be taken to prevent condensate from freezing
within the drain line.
•
If an air conditioning coil is installed with the furnace,
a common drain may be used. An open tee must be
installed in the drain line, near the cooling coil, to
relieve positive air pressure from the coil’s plenum.
This is necessary to prohibit any interference with the
function of the furnace’s drain trap.
G
ENERAL
D
RAIN
I
NFORMATION
All furnace models come with a factory installed drain trap.
For vertical installations, the trap will remain in the factory
position except for a counterflow when the installer desires
the drain to exit the right side. All furnace models installed
horizontally require the trap to be relocated. Many drain hoses
have a built–in grommet which will provide a cabinet seal
when installed. See following instructions for your model and
installation position.
NOTE: Both sides of the drain trap
must be primed prior to initial furnace start up.
F
IELD
S
UPPLIED
D
RAIN
Drain the furnace and air conditioning coil if applicable, in
compliance with code requirements. In horizontal or coun-
terflow installations, a field installed rubber coupling will al-
low the drain trap to be removed for cleaning. The drain trap
must be primed before initial furnace start up. When an air
conditioning coil drain is connected to the field supplied fur-
nace drain, it must be vented.
Содержание DC97MC
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