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Comfort
Fan
TM
- On all but the base series furnace,
the blower
speed
can be increased
or decreased
if desired
due to change
of
seasons,
large gatherings
in your home,
etc.
Simply
change
your
FAN from ON to OFF for I to 3 seconds
(or AUTO
depending
on
your thermostat),
and then return to ON.
The blower
will switch to
the next higher
speed.
There
are at least three speeds
to choose
from.
If the blower
is running
on its highest
speed,
a request
to
change will direct the blower
to return to its lowest speed.
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 your room thermostat
to the lowest
temperature
setting
and set the "MODE"
to "OFF."
See Fig. 16.
Fig. 16 - Lowest
Temperature
Setting
2. Close the external
manual
gas valve.
See Fig. 17.
1
Fig. 17 - Close the External
Manual
Valve
3. Turn off electrical
supply
to the furnace.
See Fig. 18.
A09564
A06188
4. Remove
main furnace
door.
See Fig. 10.
5. Turn control switch
on the gas control
to OFF position.
See
Fig. 19.
StN6LE-SrA_E _AS CONTROL
l_<_STAGEC, A S CONTROL
MODULATING
GAS
CONTROL
SHOWN
FN
OFF'
POSmON
Fig. 19 - Control
Switch
to OFF
Al1292
6. Replace
main furnace
door.
See Fig. 13.
7. If the furnace is being shut down because of a malfunction,
call
your dealer as soon as possible.
[]NIT
AND PROPERTY
DAMAGE
HAZARD
Failure to follow this caution may result in unit component or
property damage.
Furnace is not to be installed, operated, and then turned off
and left turned off in an unoccupied structure during winter.
See "Winterization" procedures in this manual.
PERFORMING
ROUTINE
MAINTENANCE
NOTE:
The
qualified
installer
or
agency
must
use
only
factory-authorized
replacement
parts,
kits, and accessories
when
modifying
this product.
Installing
and servicing
of heating
equipment
can be hazardous
due
to gas and electrical
components.
Only
trained
and
qualified
personnel
should
install,
repair,
or
service
heating
equipment.
Untrained
personnel
can perform
basic
maintenance
functions
such as cleaning
and replacing
air filters.
All
other
operations
nmst
be
performed
by
trained
service
personnel.
Observe
safety precautions
in this manual,
on tags, and
on labels attached
to the furnace
and other safety precautions
that
may apply.
With
proper
maintenance
and
care,
your
furnace
will
operate
econonfically
and dependably.
Instructions
for basic maintenance
are found
on this
and
the
following
pages.
However,
before
beginning
maintenance,
follow
these safety precautions:
Fig. 18 - Turn
Off Electrical
Supply
A92185
ELECTRICAL
SHOCK
HAZARD
Failure
to follow
this warning
could
result
in personal
iniury or death.
Turn
off electrical
power
supply
to your
furnace
and
install
lockout
tag before
removing
the access doors
to
service or perform
maintenance.
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