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NOTE: Constant
low-speed
blower
operation
can also
be achieved
by turning
on the constant
blower
rocker
switch
located
on top of unit. Regardless
of room ther-
mostat
setting,
blower
will run continuously
in low
speed to provide
constant
air circulation.
If constant
blower
rocker
switch
is turned
off, room thermostat
will control
blower
operation.
SHUTTING
DOWN YOUR FURNACE
Should you need to shut down your furnace for service
or maintenance,
you will need to turn the furnace off.
The following procedures
must be followed:
1. Set the thermostat to the lowest setting.
(See Fig. 8.)
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2. Turn off all electrical
power
to the appliance.
(See Fig. 9.)
3. Close the oil supply
valve. (See Fig. 10.)
I0
4. If applicable,
turn off water supply
to humidifier.
5. If furnace
blower
will be necessary
for cooling
sys-
tem, remember
to turn electric
power
back on when
needed
for air conditioning.
6. If the furnace
is being shut down because
of a mal-
function,
call your dealer
as soon as possible.
ALWAYS
KEEP MAIN
OIL VALVE
TURNED
OFF
IF BURNER
IS SHUT DOWN
FORAN
EXTENDED
PERIOD
OF TIME.
11
12
PERFORMING
ROUTINE
MAINTENANCE
With proper
maintenance
and care, your furnace
will
operate
economically
and dependably.
Instructions
for
basic maintenance
follow. However,
before beginning
maintenance,
fbllow
these safety precautions:
ELECTRICAL
SHOCK
HAZARD
Failure
to follow
this
warning
could
result
in
personal
injury
due to electrical
shock.
Turn
off all electrical
power
to furnace
before
performing
any
maintenance
or service
on
unit.
CUTS AND ABRASION
HAZARD
Failure
to follow
this caution
may result
in
minor personal
injury.
Although
special
care has been taken to mini-
mize sharp edges,
be extremely
careful when
handling
parts or reaching
into the furnace.
FILTERING
OUT TROUBLE
Dirty air filters will cause a loss of airflow in your duct
system.
When excessive
loss of airflow occurs,
the fur-
nace 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 filters be checked
every 3 or 4 weeks and cleaned
or replaced
as necessary.
UNIT OVERHEAT
HAZARD
Failure
to follow
this
caution
may result
in
damage
to the
furnace
blower
motor,
over
heat the heat exchanger
and reduce
the effi-
ciency.
Never
operate
your
furnace
without
the air
filters
in place.
The air filters are located in the blower compartment
installed in an internal filter rack which is provided as
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