Goodman ACS series Service Instructions Manual page 53

PRODUCT DESIGN
d. Terminal should be located where it will not be dam-
aged or exposed to foreign objects such as stones,
balls, etc.
e. Terminal should be located where vent vapors are not
objectionable.
2. Using the vent terminal base as a template, locate the
pipe holes and the four mounting screw holes on the
wall.
3. Cut two 3 7/8" diameter holes for the vent and intake
pipes.
4. Drill four 3/16" diameter holes for inserting the plastic
screw anchors into the wall.
Combustion
Air
Vent Cap
2" Screws x4
5. Insert the four plastic screw anchors into the screw
holes and mount the vent terminal base to the wall us-
ing the four 2" long screws provided.
6. Assemble the vent terminal cap to the vent terminal
base, using four 1" long screws provided.
7. Install 3" diameter vent and air intake pipes into the
back side of the openings in the vent terminal base.
8. Seal all gaps between the pipes and wall.
9. Using RTV silicone sealant, seal the vent pipe to the
vent cap. This will allow the terminal to be disas-
sembled later if necessary for cleaning. DO NOT use
PVC solvent cement to seal this connection.
NOTE: To downsize the piping to 2" diameter, use a field-
supplied reducing coupling.
10. Operate the furnace for 15 minutes to ensure that it is
working properly and that all piping joints are sealed
to prevent the escape of combustion products into the
home.
11. For installations where two or more furnaces are to be
vented using this kit, ensure a minimum clearance of
1" between the vent terminal caps. To prevent conden-
sate freezing problems, do not install multiple vent
kits above one another.
Vent
Base
Minimum 12"
to overhang
1" Screws x4
Vent
Minimum 12" clearance
above highest snow
level or grade
Field-Supplied
Reducing Couplings,
if required
2" or 3" Pipe
Condensate Drain Lines and Drain Trap
(90% Furnaces Only)
A condensing gas furnace achieves its high level of effi-
ciency by extracting almost all of the heat from the prod-
ucts of combustion and cooling them to the point where
condensation takes place. The condensate which is gener-
ated 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 alter-
nate 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 sus-
pended beneath the furnace. The field-supplied drain sys-
tem 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
F
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 sys-
tem. Refer to the following sections for specific details con-
cerning 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" 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.
• Do not route the drain line outside where it may
freeze.
Seal all holes through
wall with sealant
3" Pipe
WARNING
T
HIS WILL
AILURE TO FOLLOW THESE INSTRUCTIONS
53