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CUT HAZARD
Failure
to follow
this caution
may result in personal
injury.
Although
special
care has been
taken
to minimize
sharp
edges, be extremely
careful when handling
parts or reaching
into
the
furnace.
Wear
safety
glasses,
gloves,
and
appropriate
protective
clothing.
FILTERING
OUT
TROUBLE
NOTE:
The manufacturer
has specified
filters which
will enable
your furnace
to provide
lasting comfort
and efficiency
throughout
its life.
Contact
your dealer
to help you choose
filters
for your
furnace
that both collect dirt before
it enters your furnace,
as well
as provide
a low resistance
to circulating
air.
Avoid
filters
that
report high cleaning
efficiencies,
but do not allow air to pass easily
through
them.
UNIT
PERFORMANCE
HAZARD
Failure to follow this caution may result in unit component
damage,
Never operate your furnace without a filter in place, Doing
so
may
damage
the
furnace
blower
motor.
An
accumulation
of dust and lint on internal parts of your
furnace can cause a loss of efficiency,
b. Slide air filter out of furnace.
Keep dirty side up (if
dirty)
to avoid spilling
dirt.
See Fig. 23 and 24.
3. Inspect
the filter. If torn replace
it.
NOTE:
If a washable
filter was suppliedwith
the furnace
and has
been replaced
by:
•
Disposable
media filter- - Do not clean.
If dirty, replace
only with media filter having
the same part number
and
size.
Install with airflow
direction
arrow pointing
to-
wards blower.
•
Electronic
Air Cleaner (EAC),
refer to the EAC Owner's
Manual
for maintenance
information.
4. If washable
filter, wash filter (if dirty)
in a sink, bathtub,
or
outside
with
a garden
hose. Always
use cold tap water. A
mild liquid detergent
may be used if necessary.
Spray water
through
filter in the opposite
direction
of airflow. Allow
fil-
ter to dry.
5. Reinstall
clean air filter.
6. Turn on electrical
supply to the furnace.
If your
furnace
air filter needs
to be replaced,
be sure to use a
factory-authorized
filter of the
same
size
that
was
originally
specified.
Use the filter tables and compare
your furnace
size with
the proper filter size.
PERSONAL
INJURY
HAZARD
Failure to follow
this caution
may result in personal
iniury.
Use care when cutting
support
rods in filters to protect
against
flying pieces
and sharp rod ends.
Wear safety glasses,
gloves,
and appropriate
protective
clothing.
Fig. 20 - Turn
Off Electrical
Supply
A92185
A dirty
filter will cause
excessive
stress
on the
furnace,
heat
exchanger,
and blower
motor,
and can cause
it to overheat
and
automatically
shut
down.
The furnace
filter should
be checked
every four weeks
and be cleaned
or replaced
if necessary.
If installed
with factory-
specified
disposable
media filter, check or
replace
filter before
each
heating
and
cooling
season.
Replace
disposable
media filter at least once a year.
If your furnace
filter needs replacing,
be sure to use the same size
and type of filter that was originally
specified.
The air filter for the
furnace
may
be located
an external
filter
cabinet
attached
to the side or bottom
of the furnace
casing.
If the
air filter has been installed
in another
location,
contact
your dealer
for instructions.
To inspect,
clean
and/or
replace
the air filter(s),
follow these steps:
1. Turn off electrical
supply
to the furnace.
See Fig. 20.
2. Remove
air filter from the filter cabinet.
a. Remove
filter cabinet
door.
(See Fig. 21 and 22.)
NOTE:
It maybe necessary
to remove
one thumbscrew.
A00225
Fig. 21 - Removal
of Filter
Cabinet
Door from
Side Blower
Cabinet
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