Amana AIR COMMAND 80 - FURNACE LOCATION AND CLEARANCES; Location Requirements and Airflow; Clearance Requirements; COMBUSTION AND VENTILATION AIR

LOCATING THE FURNACE
A
WARNING
To
avoid possible
equipment
damage,
fire,
personal injury or death,
the
follow-
ing points must
be
observed when in-
stalling
the
unit.
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Do not install
the furnace
where combustion air for
the
furnace
is
frequently heavily contaminated with com-
pounds
containing chlorine or fluorine. Common
sources of such
compounds
include:
indoor
swimming
pools and chlorine bleaches, paint strippers, adhesives,
paints, varnishes, sealers, waxes
(which
are not yet
dried)
and solvents used
during construction
and
remodeling. Various commercial and industrial proc-
esses may also be sources of chlorine/fluorine
compounds.
If the furnace is installed
near an
area which will be fre-
quently
contaminated by chlorine/fluorine compounds,
the furnace should be sealed from this area so
that little
contaminated air can reach the furnace. The
furnace
must still
have an adequate
supply of
combustion
air,
either from
a
neighboring
uncontaminated
room or from
outdoors. For details, see the "Combustion and Ventila-
tion Air"
section below.
The
furnace
should
be
set on a level floor. If the floor may
become wet
or
damp at times, the furnace should be
supported above the
floor
on a concrete base sized
approximately 1'/2" larger
than
the base
of
the furnace.
The furnace should be as centralized
as is practical with
respect to the
air distribution
system.
Provisions must be made
for venting
combustion prod-
ucts outdoors
through
a
proper venting system
as out-
lined
in
the
Venting Manual.
The length
of
flue pipe could
be a
limiting factor
in
locating
the furnace.
For
details,
see
the Venting Manual
shipped
with
the furnace.
Allow clearances from
the enclosure as
per
Table
1 for
fire protection, proper operation,
and service access.
These
clearances must be
permanently
maintained. The
combustion
and
ventilating air openings in the front
and
top
panels of
the furnace
must never be
obstructed.
When
installed in a residential garage the furnace must
be positioned so the burners and
ignition
source are
located not less than 18
inches above
the floor
and pro-
tected from
physical
damage by vehicles.
Do not install the furnace directly on carpeting,
tile,
or
other combustible material other
than wood flooring.
CLEARANCES TO
COMBUSTIBLE SURFACES.* (inches)
TABLE 1
Front 6
Left
1
Right
2**
Rear 0
Top
1
Flue 6*
Floor
C
C = Combustible
Floor
(Wood
Only)
* = May be 1 " if Type B vent is used.
* * = 2" clearance
for GU1045B25A, GU1070B30A,
&
GU1070B40A only
(May be
1" when
Type
B vent
is
used.) All others may be
1".
ACCESSIBILITY CLEARANCES (MINIMUM)
36" at front is required for servicing
or
cleaning.
NOTE: In
all
cases
accessibility clearance shall
take prece-
dence
over
clearances
from the
enclosure where
accessibility clearances are
greater.
COMBUSTION AND VENTILATION AIR
A
WARNING
Property damage,
bodily
injury or death
may
occur if
the furnace
and
any other
fuel -burning
appliances
are
not
provided
with enough fresh
air for proper
combus-
tion
and ventilation of
flue gases. Most
homes
require outside air
to be supplied
into the
furnace area.
mproved construction and
additional
insulation
in
homes has
reduced the heat loss and made these homes much
tighter
around
door
and windows so that
air
infiltration is
minimal.
This creates a problem to supply combustion
and
ventilation
air for gas
fired
or other fuel burning
appliances. Any use
of
appliances that
pull air
out of the house (clothes dryers,
exhaust fans, fireplaces,
etc.) increases this
problem
and
appliances could be starving for
air.
In
addition,
these energy
saving
measures
mean that your
home
will
retain more
water vapor
and have a
higher
relative
humidity. High humidity,
especially during
cold
weather,
may
be damaging to buildings because
condensation
forms
on
windows and inside walls.
AIR REQUIREMENTS
Most
homes
will require that
outside
air
be supplied to the
furnace area by means
of
ventilation grilles
or
ducts
connect-
ing directly to the outdoors or
spaces
open to the
outdoors
such
as attics
or crawl
spaces. The
following
information on
air for combustion
and ventilation is reproduced from
the
National Fuel Gas Code NFPA54/ANSI Z223.1 Section
5.3.
5.3.1 General:
(a) The provisions of 5.3 apply
to
gas utilization
equipment
installed in buildings and which require air for combustion,
ventilation and dilution of flue
gases
from within
the building.
They do not
apply
to (1) direct vent
equipment which is
con-
structed and installed so that all air combustion
is obtained
from the outside
atmosphere and
all
flue gases are dis-
charged to
the outside atmosphere, or (2)
enclosed furnaces
which
incorporate an
integral
total
enclosure and use
only
outside
air for
combustion and dilution
of flue gases.
(b) Equipment shall be
installed
in
a location in which
the
facilities
for ventilation
permit satisfactory combustion of
gas,
proper
venting and the maintenance of
ambient temperature
at safe limits under normal
conditions of use. Equipment
shall
be located so as not to
interfere with
proper
circulation
of air. When
normal infiltration
does not provide the neces-
sary air,
outside
air
shall be
introduced.
(c) In addition to air
needed for combustion,
process
air
shall
be provided as
required
for:
cooling of equipment or material,
controlling dew point,
heating, drying, oxidation or
dilution,
safety
exhaust, odor control,
and
air for
compressors.
(d)
In
addition
to
air
needed
for
combustion, air shall
be
applied for
ventilation,
including
all
air
required for
comfort
and proper
working
conditions
for
personnel.
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