Goodman GCV9 Series Installation Instructions Manual Download Page 11

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and free area is not known, it may be assumed that wood louvers will
have 20-25 percent free area and metal louvers and grilles will have 60-
75 percent free area. Louvers and grilles shall be fixed in the open
position or interlocked with the equipment so that they are opened au-
tomatically during equipment operation.

5.3.6 Special Conditions Created by Mechanical Exhausting or Fire-

places:

Operation of exhaust fans, ventilation systems, clothes dryers, or fireplaces

may create conditions requiring special attention to avoid unsatisfac-
tory operation of installed gas utilization equipment. Air from Inside
Building. See 5.3.3-a.

VI. INSTALLATION POSITIONS

This furnace may be installed in an upright position or horizontal on
either the left or right side panel. Do not install this furnace on its
back. For

upright upflow

furnaces, return air ductwork may be at-

tached to the side panel(s) and/or basepan. For

horizontal upflow

furnaces, return air ductwork must be attached to the basepan. For
both

upright or horizontal counterflow

furnaces, return ductwork must

be attached to the basepan (top end of the blower compartment).

NOTE:

Ductwork must never be attached to the back of the fur-

nace. Contact your distributor for proper airflow requirements and
number of required ductwork connections. Refer to “Recommended
Installation Positions” figure for appropriate installation positions,
ductwork connections, and resulting airflow arrangements.

VII. HORIZONTAL APPLICATIONS & CONSIDERATIONS

ENERAL

Horizontal applications, in particular, may dictate many of the
installation’s specifics such as airflow direction, ductwork connec-
tions, flue and combustion air pipe connections, etc. The basic ap-
plication of this furnace as a horizontal furnace differs only slightly
from an upright installation. When installing a furnace horizontally,
additional consideration must be given to the following:

ALTERNATE VENT/FLUE

AND COMBUSTION AIR

INTAKE LOCATIONS

FURNACE MUST BE LEVEL

FROM END TO END

FURNACE MUST BE LEVEL

OR SLIGHTLY TILTED FORWARD

WITH THE DOORS 0" - 3/4"

BELOW THE BACK PANEL

DRAIN LINE WITH 1/4" PER FOOT

DOWNWARD SLOPE

36" MINIMUM SERVICE

CLEARANCE REQUIRED

FURNACE MUST BE SUPPORTED

AT BOTH ENDS AND MIDDLE

DRAIN PAN

GAS LINE WITH

DRIP LEG (3" MINIMUM)

4 3/4" MINIMUM

DRAIN TRAP

CLEARANCE

Horizontal Furnace

RAIN

RAP

AND

INES

In horizontal applications the condensate drain trap is secured to
the furnace side panel, suspending it below the furnace. A mini-
mum clearance of 4 3/4 inches below the furnace must be provided
for the drain trap. Additionally, the appropriate downward piping
slope must be maintained from the drain trap to the drain location.
Refer to

Section X, Condensate Drain Trap and Lines

for further

details. If the drain trap and drain line will be exposed to tempera-
tures near or below freezing, adequate measures must be taken to
prevent condensate from freezing.

EVELING

Leveling ensures proper condensate drainage from the heat ex-
changer and induced draft blower. For proper flue pipe drainage,
the furnace must be level lengthwise from end to end. The furnace
should also be level from back to front or have a slight tilt with the
access doors downhill (approximately 3/4 inches) from the back
panel. The slight tilt allows the heat exchanger condensate, gener-
ated in the recuperator coil, to flow forward to the recuperator coil
front cover.

LTERNATE

ENT

LUE

AND

OMBUSTION

ONNECTIONS

In horizontal installations provisions for alternate flue and combus-
tion air piping are available for upflow furnaces with left discharge
and counterflow furnaces with right air discharge. This configura-
tion allows the flue and combustion air piping to be run vertically
through the side of the furnace. Refer to the “Recommended Instal-
lation Positions” figure for further detail. The standard piping con-
nections may also be used in these positions. Refer to

Section IX,

Vent/Flue Pipe and Combustion Air Pipe

for details concerning the

conversion to the alternate vent/flue and combustion air connec-
tions.

AIR

DISCHARGE

AIR

DISCHARGE

AIR

DISCHARGE

Bottom
Return

Duct

Connection

Bottom

Return

Duct

Connection

Bottom
Return

Duct

Connection

Side

Return

Duct

Connection

Side

Return

Duct

Connection

UPFLOW
UPRIGHT

UPFLOW HORIZONTAL

RIGHT AIR DISCHARGE

UPFLOW HORIZONTAL

LEFT AIR DISCHARGE

ALTERNATE FLUE AND
COMBUSTION AIR PIPE
LOCATIONS

Recommended Installation Positions

NOTE:

Alternate “vertical” piping connections can not be used when

an upflow furnace is installed with supply air discharging to the right,
or when a counterflow furnace is installed with supply air discharging
to the left. In either case, use the standard flue and combustion air
piping connections.

LTERNATE

LECTRICAL

AND

INE

ONNECTIONS

This furnace has provisions allowing for electrical and gas line con-
nections through either side panel. In horizontal applications the
connections can be made either through the “top” or “bottom” of the
furnace.

RAIN

A drain pan must be provided if the furnace is installed above a
conditioned area. The drain pan must cover the entire area under
the furnace (and air conditioning coil if applicable).

REEZE

ROTECTION

Refer to

Section VII, Horizontal Applications and Conditions - Drain

Trap and Lines.