Condensate Drain Lines & Drain Trap; Vent /Intake Terminations For Installation Of Multiple Direct Vent Furnaces; Concentric Vent Termination; General - Goodman GMV9 Installation & Operating Instructions Manual

3" MIN.
24" MAX.
SUPPORT
STRAPS
COMBUSTION
AIR INTAKE.
SCREEN 12" MIN. ABOVE
HIGHEST ANTICIPATED
90°
SNOW LEVEL
MEDIUM
RADIUS
ELBOWS
Standard Horizontal Terminations Above Anticipated Snow
Level (Dual Pipe)
Alternate Vent Termination Above Anticipated Snow Level
In a basement installation, the pipes may be run between the joist
spaces. If the pipes must go below the joist and then up into the last
joist space to penetrate the header, two 45° elbows should be used
to reach the header rather than two 90° elbows.
V /I T
ENT NTAKE ERMINATIONS
D V F
IRECT ENT URNACES
If more than one direct vent furnace is to be installed vertically through
a common roof top, maintain the same minimum clearances between
the exhaust vent and air intake terminations of adjacent units as with
the exhaust vent and air intake terminations of a single unit.
If more than one direct vent furnace is to be installed horizontally
through a common side wall, maintain the clearances as in the fol-
lowing figure. Always terminate all exhaust vent outlets at the same
elevation and always terminate all air intakes at the same elevation.
24" Max.
Air
Intakes
Horizontal Venting Of Multiple Units
C V T
ONCENTRIC ENT ERMINATION
Refer to the directions provided with the Concentric Vent Kit (DCVK)
for installation specifications.
IO-243
12" MIN
12" MIN.
VENT/FLUE
TEE
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
(Dual Pipe)
F I M
OR NSTALLATION OF
Vents
90°
Medium
Radius
Elbows
3" Min.
24" Max.
3" Min.
24" Max.
3" Min.
Screen
12" Min.
X. CO X. CO X. CO X. CO X. COND NDENSA ND ND ND
G
ENERAL
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. The
condensate 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 bot-
tom (down side) of the unit with the drain trap suspended beneath
the furnace. The field-supplied drain system must be in accordance
with all local codes and the instructions in the following sections.
I
N UPRIGHT UPFLOW INSTALLATIONS, THE DRAIN TRAP MUST BE MOUNTED ON
THE OPPOSITE SIDE OF THE UNIT FROM THE JUNCTION BOX.
REDUCE THE RISK OF WATER REACHING THE JUNCTION BOX IN THE EVENT OF
A BLOCKED DRAIN CONDITION.
CAN RESULT IN POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH
DUE TO ELECTRICAL SHOCK.
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 line between furnace and drain location must
be constructed of 3/4" PVC or CPVC.
• 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
ULTIPLE
drain trap supplied with the furnace.
• Do not route the drain line outside where it may freeze.
• 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 I
PRIGHT 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 us-
ing an alternate vent/flue outlet.
S R
TANDARD IGHT OR
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.
18
ENSA ENSATE DRAIN LINES & DRAIN TRAP ENSA ENSA TE DRAIN LINES & DRAIN TRAP TE DRAIN LINES & DRAIN TRAP TE DRAIN LINES & DRAIN TRAP TE DRAIN LINES & DRAIN TRAP
WARNING
F
AILURE TO FOLLOW THESE INSTRUCTIONS
L S D H
EFT IDE RAIN OSE
T
HIS WILL
C
ONNECTIONS
6/04