Intertek ACVC96 Service Instructions Manual page 26

INSTALLATION CONSIDERATIONS
AIR
INTAKE
SCREEN
(OPTIONAL)
Combustion Air Intake may also be snorkeled to obtain 12"
min ground clearance.
90% Furnace Alternate Vent Termination
Above Anticipated Snow Level (Dual Pipe)
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 verti-
cally through a common roof top, maintain the same mini-
mum 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 hori-
zontally through a common side wall, maintain the clear-
ances as in the following figure. Always terminate all ex-
haust vent outlets at the same elevation and always termi-
nate all air intakes at the same elevation.
3" MIN
OPTIONAL
INTAKE
SCREENS
12" MIN TO GRADE OR HIGHEST
ANTICIPATED SNOW LEVEL
90% Furance Horizontal Venting of Multiple Units
(Dual Pipe)
26
90°
ELBOWS
3"-24" BETWEEN PIPES
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
F I M
OR NSTALLATION OF ULTIPLE
3" - 24"
12" MIN SEPARATION
Condensate Drain Lines and Drain Trap
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
collected in the furnace drain trap and routed to an appropri-
ate 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 in-
stalled in the drain line, near the cooling coil, to relieve
positive air pressure from the coil's plenum. This is nec-
essary to prohibit any interference with the function of the
furnace's drain trap.
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
t r a p .
F
A BLOCKED DRAIN CONDITION. AILURE TO FOLLOW THESE INSTRUCTIONS
CAN RESULT IN POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH
DUE TO ELECTRICAL SHOCK.
GAS SUPPLY AND PIPING
The furnace rating plate includes the approved furnace gas
input rating and gas types. The furnace must be equipped to
operate on the type of gas applied. This includes any con-
version kits required for alternate fuels and/or high altitude.
T
O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE INLET
GAS SUPPLY PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE
WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANCES OPERATING.
WARNING
T
HIS WILL
CAUTION