Goodman Amana AMH8 Service Instructions Manual page 25

PRODUCT DESIGN
9.3.8.7 The remaining space surrounding a chimney liner, gas vent, spe-
cial gas vent, or plastic piping installed within a masonry, metal, or factory
built chimney shall not be used to supply combustion air.
Exception: Direct vent appliances designed for installation in a solid
fuel-burning fireplace where installed in accordance with the
manufacture's installation instructions.
9.3.8.8 Combustion air intake openings located on the exterior of the
building shall have the lowest side of the combustion air intake openings
located at least 12 in. (300 mm) vertically from the adjoining grade level.
Category I Venting (Vertical Venting)
(80% Furnaces Only)
T
O PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO
ASPHYXIATION, NON-CONDENSING GAS FIRED WARM AIR FURNACES MUST
C I D
BE ATEGORY VENTED. O NOT VENT ANY OF THESE FURNACES USING
C III
ATEGORY VENTING.
Category I Venting is venting at a non-positive pres-
sure. A furnace vented as Category I is considered a
fan-assisted appliance and does not have to be "gas tight."
NOTE: Single-Stage and Two-Stage gas furnaces with
induced draft blowers draw products of combustion
through a heat exchanger allowing in some instances
common venting with natural draft appliances (i.e. wa-
ter heaters).
All installations must be vented in accordance with Na-
tional Fuel Gas Code NFPA 54/ANSI Z223.1 - latest edi-
tion. In Canada, the furnaces must be vented in accor-
dance with the National Standard of Canada, CAN/CGA
B149.1 and CAN/CGA B149.2 - latest editions and amend-
ments.
NOTE: The vertical height of the Category I venting sys-
tem must be at least as great as the horizontal length
of the venting system.
T
O PREVENT POSSIBLE DEATH OR PERSONAL INJURY DUE TO
ASPHYXIATION, COMMON VENTING WITH OTHER MANUFACTURER'S
INDUCED DRAFT APPLIANCES IS NOT ALLOWED.
When an existing furnace is removed from a venting
system serving other appliances, the venting system may
be too large to properly vent the remaining attached
appliances. For complete details refer to Exisiting Fur-
nace Removal section of this manual.
When resizing any portion of the common venting sys-
tem, use the appropriate table in Appendix G in the
latest edition of the National Fuel Gas Code NFPA 54/
ANSI Z223.1.
WARNING
WARNING
Upflow or Horizontal units are shipped with the in-
duced draft blower discharging from the top of the fur-
nace ("Top" is as viewed for an upflow installation). The
induced draft blower can be rotated 90 degrees for Cat-
egory I venting. Refer to the following figure. For hori-
zontal installations, a four inch single wall pipe can be
used to extend the induced draft blower outlet 1/2"
beyond the furnace cabinet. Vent the furnace in accor-
dance with the National Fuel Gas Code NFPA 54/ANSI
Z223.1 - latest edition. In Canada, vent the furnace in
accordance with the National Standard of Canada, CAN/
CGA B149.1 and CAN/CGA B149.2 - latest editions and
amendments.
T
O PREVENT DEATH OR SERIOUS ILLNESS TO BUILDING OCCUPANTS DUE
TO FLUE PRODUCTS LEAKING INTO THE BUILDING, PROPER INSTALLATION OF
GASKETS AND SCREWS IS ESSENTIAL FOR PROVIDING A GAS TIGHT SEAL
BETWEEN THE PARTITION PANEL AND THE INDUCED DRAFT BLOWER.
Make sure all wires are at least one inch from flue pipe.
Relocate junction box to right side of cabinet if nec-
essary. Refer to Electrical Connections section of this
manual for instructions.
Masonry Chimneys
WARNING
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