20
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
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. This kit is
NOT
intended for use with single pipe (indirect
vent) installations.
Refer to the directions furnished with the Side Wall Vent Kit (p/n
0170K00000S) for installation specifications.
X. CONDENSATE DRAIN LINES & DRAIN TRAP
G
ENERAL
A condensing gas furnace achieves its high level of efficiency by ex-
tracting almost all of the heat from the products of combustion and
cooling them to the point where condensation takes place. The con-
densate which is generated must be piped to an appropriate drain
location.
In
upright
installations, the furnace’s drain hoses may exit either
the right or left side of the furnace.
NOTE:
If the alternate vent/flue
outlet is utilized in an upright installation, the drain trap and drain
connections must be located on the same side as the alternate
vent/flue outlet.
In
horizontal
installations, the drain hoses will exit through the
bottom (down side) of the unit with the drain trap suspended be-
neath the furnace. The field-supplied drain system must be in
accordance with all local codes and the instructions in the follow-
ing sections.
Follow the bullets listed below when installing the drain system.
Refer to the following sections for specific details concerning fur-
nace drain trap installation and drain hose hook ups.
•
The drain trap supplied with the furnace must be used.
•
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.
U
PRIGHT
I
NSTALLATIONS
In an upright installation drain hoses are connected to drain ports on
the rubber elbow and the recuperator coil front cover. The drain lines
are then routed through the right or left side panel and into the drain
trap secured to the outside of the cabinet.
NOTE:
Refer to
Section X, Condensate Drain Lines and Drain Trap -
Alternate Vent/Flue Hose Connections
for upright installations using
an alternate vent/flue outlet.
S
TANDARD
R
IGHT
OR
L
EFT
S
IDE
D
RAIN
H
OSE
C
ONNECTIONS
Upright installations using the
standard
vent/flue outlet require drain
hoses to be connected as follows. The following quantity of hoses,
tubes, and hose clamps are provided with the unit.
DRAIN TRAP
QTY: 1
GREEN
HOSE CLAMPS
QTY: 3
SILVER
HOSE CLAMP
QTY: 1
TUBE 2
QTY: 2
TUBE 1
QTY: 1
HOSE B
QTY: 1
HOSE A
QTY: 1
RED
HOSE CLAMP
QTY: 1
Hose and Tube Identification
1.
Remove the rubber plug/cap from the front cover drain port
(right or left side, depending on the intended drain trap
mounting).
2.
Secure Hose A to front cover drain port with a red hose clamp.
Route hose to rear side panel grommet hole.
NOTE: For left side drainage, grommets will have to be relocated
to left side panel.
3.
Cut and remove 1/4 inch from the end of the drain port on the
rubber elbow.
4.
Insert Tube 1 into rubber elbow drain port and secure with silver
hose clamp. Angle tube outward toward front of furnace.
5.
Right
side drains
Cut 17 3/4 inches from the long end (end opposite the bend) of
Hose B. Save the part with the bend and discard the 17 3/4 inch
piece that was cut. Secure the remaining hose to Tube 1 with
a green hose clamp. Route the other end of Hose B to front
right side panel grommet hole.
Left
side drains
Cut “X” inches from the long end of Hose B and discard. Refer
to table for appropriate length to cut. Secure remaining hose
to Tube 1 with a green hose clamp. Route other end of Hose B
to front left side panel grommet hole.
Cabinet Width
(inches)
Models
(kBTU_Tons)
"X" Length to Cut From Long
End of Hose B
045_30
070_30
070_40
090_40
090_50
115_50
24 1/2
None
17 1/2
21
7 inches
3 1/2 inches
6.
Insert short end of each Tube 2 through side panel grommet
holes. Secure tubes to Hose A and Hose B with green hose
clamps. Ensure hoses and tubes maintain a downward slope
for proper drainage and that they are not kinked or binding.
For details concerning mounting of the drain trap, refer to
Section X,
Condensate Drain Lines and Drain Trap - Upright Drain Trap Mount-
ing.
A
LTERNATE
V
ENT
/F
LUE
D
RAIN
H
OSE
C
ONNECTIONS
Upright installations using the
alternate
vent/flue outlet will require “right-
side only” drain hoses to be connected as follows. Refer to
Section
IX, Vent/Flue Pipe
and Combustion Air Pipe for details on alternate
vent/flue pipe connection.
