Furnace Suspension; Propane Gas /High Altitude Installations; Vent/Flue Pipe & Combustion Air Pipe; General - Goodman GMV95 Installation Instructions Manual

F S
URNACE USPENSION
If the furnace is installed in a crawl space it must be suspended
from the floor joist or supported by a concrete pad. Never install the
furnace on the ground or allow it to be exposed to water. Refer to
Section IV, Location Requirements and Considerations - Furnace
Suspension for further details.
VIII. PROPANE GAS /HIGH ALTITUDE INSTALLATIONS
P
OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH MAY OCCUR IF
THE CORRECT CONVERSION KITS ARE NOT INSTALLED.
MUST BE APPLIED TO INSURE SAFE AND PROPER FURNACE OPERATION.
CONVERSIONS MUST BE PERFORMED BY A QUALIFIED INSTALLER OR SERVICE
AGENCY.
This furnace is shipped from the factory configured for natural gas
at standard altitude. Propane gas installations require an orifice
change to compensate for the energy content difference between
natural and propane gas.
High altitude installations may require both a pressure switch and
an orifice change. These changes are necessary to compensate
for the natural reduction in the density of both the gas fuel and the
combustion air at higher altitude.
For installations above 7000 feet, please refer to your distributor for
required kit(s).
Gas Altitude Kit Orifice
Natural None #43
0-7000
Propane #55
LPM-03*
NOTE: In Canada, gas furnaces are only certified to 4500 feet.
Contact the distributor for a tabular listing of appropriate
manufacturer's kits for propane gas and/or high altitude installations.
The indicated kits must be used to insure safe and proper furnace
operation. All conversions must be performed by a qualified installer,
or service agency.
IX. VENT/FLUE PIPE & COMBUSTION AIR PIPE
G
ENERAL
F
AILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN BODILY INJURY OR
C
DEATH. AREFULLY READ AND FOLLOW ALL INSTRUCTIONS GIVEN IN THIS
SECTION.
U
PON COMPLETION OF THE FURNACE INSTALLATION, CAREFULLY INSPECT THE
ENTIRE FLUE SYSTEM BOTH INSIDE AND OUTSIDE THE FURNACE TO ASSURE IT
L
IS PROPERLY SEALED. EAKS IN THE FLUE SYSTEM CAN RESULT IN SERIOUS
PERSONAL INJURY OR DEATH DUE TO EXPOSURE TO FLUE PRODUCTS,
INCLUDING CARBON MONOXIDE.
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. Be-
cause of the relatively low flue gas temperature and water conden-
sation requirements, PVC pipe is used as venting material.
This furnace must not be connected to Type B, BW, or L vent or vent
WARNING
T
HE APPROPRIATE KITS
Manifold Pressure Pressure
Switch Change
High Stage Low Stage
3.5" w.c. 1.9" w.c. None
10.0" w.c. 6.0" w.c. None
WARNING
WARNING
connector, and must not be vented into any portion of a factory built
or masonry chimney except when used as a pathway for PVC as
described later in this section. Never common vent this appliance
with another appliance or use a vent which is used by a solid fuel
appliance. Do not use commercially available "no hub connectors"
other than those shipped with this product.
It is the responsibility of the installer to follow the manufacturers'
recommendations and to verify that all vent/flue piping and connec-
tors are compatible with furnace flue products. Additionally, it is the
responsibility of the installer to ensure that all piping and connec-
tions possess adequate structural integrity and support to prevent
flue pipe separation, shifting, or sagging during furnace operation.
D C
UAL ERTIFICATION
A
LL
This furnace is dual certified and may be installed as a non-direct
vent (single pipe) or direct vent (dual pipe) appliance. A non-direct
vent installation requires only a vent/flue pipe, while a direct vent
installation requires both a vent/flue pipe and a combustion air in-
take pipe. Refer to the appropriate section for details concerning
piping size, length, number of elbows, furnace connections, and ter-
minations.
M J
ATERIALS AND OINING
T
O AVOID BODILY INJURY, FIRE OR EXPLOSION, SOLVENT CEMENTS MUST BE
KEPT AWAY FROM ALL IGNITION SOURCES (I.E., SPARKS, OPEN FLAMES, AND
EXCESSIVE HEAT) AS THEY ARE COMBUSTIBLE LIQUIDS.
CEMENT VAPORS OR CONTACT WITH SKIN AND/OR EYES.
Two- or three-inch nominal diameter PVC Schedule 40 pipe meet-
ing ASTM D1785, PVC primer meeting ASTM F656, and PVC sol-
vent cement meeting ASTM D2564 specifications must be used.
Fittings must be DWV type fittings meeting ASTM D2665 and ASTM
D3311. Carefully follow the pipe manufacturer's instructions for cut-
ting, cleaning, and solvent cementing of PVC.
As an alternative to PVC pipe, primer, solvent cement, and fittings,
ABS materials which are in compliance with the following specifica-
tions may be used. Two-or-three-inch ABS Schedule 40 pipe must
meet ASTM D1527 and, if used in Canada, must be CSA listed.
Solvent cement for ABS to ABS joints must meet ASTM D2235 and,
if used in Canada, must be CSA listed. The solvent cement for the
PVC to ABS transition joint must meet ASTM D3138. Fittings must
be DWV type fittings meeting ASTM D2661 and ASTM D3311 and,
if used in Canada, must be CSA listed. Carefully follow the manu-
facturers' instructions for cutting, cleaning, and solvent cementing
PVC and/or ABS.
All 90° elbows must be medium radius (1/4 bend DWV) or long ra-
dius (Long sweep 1/4 bend DWV) types conforming to ASTM D3311.
A medium radius (1/4 bend DWV) elbow measures 3 1/16" mini-
mum from the plane of one opening to the centerline of the other
opening for 2" diameter pipe, and 4 9/16" minimum for 3" pipe.
P V /F
ROPER ENT LUE AND
Adhere to these instructions to ensure safe and proper furnace per-
formance. The length, diameter, and number of elbows of the vent/
flue pipe and combustion air pipe (when applicable) affects the per-
formance of the furnace and must be carefully sized. All piping
must be installed in accordance with local codes and these instruc-
tions.
Piping must be adequately secured and supported to prohibit sag-
ging, joint separation, and/or detachment from the furnace. Hori-
zontal runs of vent/flue piping must be supported every three feet
and must maintain a 1/4 inch per foot downward slope, back to-
wards the furnace, to properly return condensate to the furnace's
12
: N -D /D V
ON IRECT IRECT ENT
M
ETHODS
WARNING
A
C A P
OMBUSTION IR IPING
VOID BREATHING
P
RACTICES