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UNIT DAMAGE H AZARD
Failure tofnllow this caution may result inunit d amage.
Never operate yourfurnace without theairfilters in place.
Doingsomaydamage thefurnace blower m otor.An
accumulation
ofdust and lintoninternal parts ofyour furnace
can cause aloss o fefficiency.
A96364
4. If applicable,
turn off water supply to humidifier.
5. If furnace
blower
will be necessary
for cooling
system,
re-
member
to turn electric
power
back on when needed
for air
conditioning.
6. If furnace
is being
shut down
because
of malfunction,
call
your dealer as soon as possible.
ALWAYS
KEEP
MAIN
OIL
VALVE
TURNED
OFF
IF
BURNER
IS SHUT
DOWN
FOR AN EXTENDED
PERIOD
OF
TIME.
PERFORMING
ROUTINE
MAINTENANCE
With
proper
maintenance
and
care,
your
furnace
will
operate
economically
and dependably.
Instructions
for basic maintenance
follow.
However.
before
beginning
maintenance,
follow
these
safety precautions.
ELECTRICAL
SHOCK
HAZARD
Failure
to follow
this warning
could
result
in personal
injury/death.
Turn off electrical
power
supply
to your furnace
before
performing
any maintenance
or service on unit.
CUT HAZARD
Failure
to fnllow 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.
Air
Filter
A dirty air filter will cause
a loss of airflow
in your duct system.
When excessive
loss of airflow occurs,
the furnace may cycle on its
safety controls.
If this condition
is left unattended,
the furnace will
eventually
lock out. It is recommended
that the furnace
air filter(s)
be checked
every
3 or 4 weeks
and cleaned
or replaced
at least
once a year. Very dusty conditions,
the presence
of animal hair and
the like will require more frequent
changing
or cleaning.
The air filter is installed
in an external
filter rack which
is provided
as standard
equipment
with furnace.
To inspect,
clean, and/or replace
the air filter(s),
follow these steps:
1. Turn
off electrical
supply to furnace.
(See Fig. 11.)
2. Remove
filter from external
filter rack.
3. Inspect
filter.
If torn, replace
it.
NOTE:
If filter has been
replaced
with an electronic
air cleaner
(EAC),
refer
to
the
EAC
Owner's
Manual
for
maintenance
information.
4. If filter is dirt3,, it must be replaced.
If your furnace
air filter
needs to be replaced,
be sure to use the same size and type
of filter that was originally
supplied.
If you have replaced
a disposable
filter with a permanent
washable
filter, it may be cleaned
if it is dirty.
Wash filter 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
filter to dry.
5. Re-install
clean air filter.
6. Turn
on electrical
supply to furnace.
A CHECK-UP
CHECKLIST
Your furnace
represents
an important
investment
in your family's
comfort
and your home's
value. Preventive
maintenance
is the best
way m avoid
unnecessary
expense
and inconvenience.
To keep it
performing
properly
and to prevent
future problems,
have a trained
service
specialist
give
your
furnace
a professional
check-up
annually.
The following
checklist
can be used as a guideline
to
proper
service:
• Check flue and secondary
tube passage
ways including
chimney-
-clean
if necessary.
• Change
oil filter.
• The tank filter should be replaced
as required.
The secondary,
10 micron or finer, filter cartridge
should be replaced
annually.
• Change
nozzle.
• Check and adjust combustion
and draft.
• Check oil pipes leading
to and inside of your furnace
for leaks.
• Inspect and clean the blower
motor and wheel.
• Inspect and change
or clean air filter(s),
if necessary.
• Inspect all supply-
and return-air
ducts for obstructions,
air
leaks, and insulation.
Remedy
any problem
when necessary.
• Inspect the return-air
duct connections(s)
at the furnace to
ensure it is physically
sound,
sealed to the furnace
casing,
and
terminates
outside
the space containing
the furnace.
• Inspect electrical
wiring,
connections,
and components
for loose
connections.
• Examine
the physical
support
of the furnace.
Support
should be
sound with no cracks, sagging,
gaps, etc. around the base.
• Check furnace fnr any obvious
signs of deterioration.
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