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this ice would
impede
airflow
across
the coil
and
reduce
the
amount
of heat absorbed
from
the outside
air. So, to maintain
energy-efficient
operation,
your
unit has
an automatic
defrost
mode.
The defrost
mode
starts at a preset
time
interval
of 60 minutes,
although,
it may be reset to 30, 90 or 120 minutes.
Defrost
will
start at the preset time only if the ice is sufficient
to interfere
with
normal heating
operation.
After the ice is melted
from
the coil, or after a maximum
of 10
minutes
in defrost
mode,
the unit automatically
switches
back to
normal heating
operation.
Do not be alarmed
if steam
or fog appears
at the outdoor
unit
during
defrost
mode.
Water
vapor
from
the
melting
ice may
condense
into a mist in the cold outside
air.
During certain weather
conditions
such as heavy snow and freezing
rain it is not uncommon
for ice to build up on the unit grille. This
is normal
for these weather
conditions.
Do not attempt
to remove
the ice from the unit grille. This condition
will not affect the proper
function
of the unit and will clear within a few days.
During
defrost
mode,
your heat pump
will automatically
turn on
the supplemental
heat, if equipped.
You may notice the indoor
fan
increase
its speed.
Emergency Heatin_ Mode
In the event of primary
unit heat failure, the emergency
heat mode
allows
your
supplemental
heating
source
to keep your
home
or
office warm until your unit can be serviced.
Contact
your dealer in
the event of primary
unit heat failure.
During
Emergency
Heat,
your
thermostat
will lockout
the heat
pump
and turn on the supplemental
heat,
if equipped.
You may
notice the indoor
fan increase
its speed.
MAINTENANCE
AND SERVICE
This section
discusses
maintenance
that should
be performed
by
your dealer
and care you,
as the owner,
may wish to handle
for
your new unit.
Routine
Maintenance
All routine maintenance
should be handled
by skilled,
experienced
personnel.
Your dealer can help you establish
a standard
procedure.
To assure
proper
functioning
of the unit,
flow
of condenser
air
must not be obstructed
from reaching
the unit. Clearance
from the
top of the unit is 48 in. (1219
mm). Clearance
of at least 36 in.
(914 mm) is required
on sides except
the power
entry side (42 in.
[1067 mm] clearance).
Maintenance
and
Care
for
the
Equipment
Owner
Before proceeding
with those things
you might want
to maintain
yourself,
please
carefully consider
the following:
FIRE,
EXPLOSION,
ELECTRICAL
SHOCK,
CUT
HAZARD
Failure
to follow
this warning
could
result
in personal
iniury,
death or property
damage.
1. TURN
OFF ELECTRICAL
POWER
TO YOUR
UNIT
BEFORE
SERVICING
OR
PERFORMING
MAINTENANCE
AND
INSTALL
A
LOCK-OUT
TAG.
2. When
removing
access
panels
or
performing
maintenance
functions
inside
your
unit,
be
aware
of
sharp sheet metal parts and screws. Although
special care
is taken
to reduce
sharp
edges
to
a minimum,
be
extremely
careful
when
handling
parts
or reaching
into
the unit.
Air Filters
The air filter(s)
should be checked every 3 or 4 weeks
and changed
or
cleaned
whenever
it becomes
dirty.
Dirty
filters
produce
excessive
stress
on the blower
motor
and can cause the motor
to
overheat
and shut down.
This unit must have an air filter in place before
it can be operated.
These
filters
should
be located
in at least one of two places.
In
many
applications,
the installer
will provide
return
air filter grilles
mounted
on the wall or ceiling
of the conditioned
structure.
In the
instance
of filter grilles, the filters can simply
be removed
from the
grille and replaced.
Table 1 indicates
the correct
indoor
filter size for your unit.
Table
1 - Indoor
Air Filter
Data
Unit Size
Filter Size
024
20x20x1 (508x508x25 mm)
030
20x24x1 (508x610x25 mm)
066-042
24x60x1 (610x762x25 mm)
048-060
24x66x1 (610x914x25 mm)
When
installing
the new filter(s),
note the direction
of the airflow
arrows on the filter frame.
If you have difficulty
locating
your air filter(s)
or have questions
concerning
proper
filter
maintenance,
contact
your
dealer
for
instructions.
When
replacing
filters, always
use the same size and
type of filter that was supplied
originally
by the installer.
FIRE
AND UNIT
OPERATION
HAZARD
Failure
to follow
this warning
could
result
in personal
iniury, death or property
damage.
Never
operate
your
unit
without
filters
in
place.
An
accumulation
of dust and lint on internal
parts of your unit
can cause loss of efficiency.
Fans and Fan Motor
Periodically
check the condition
of fan wheels
and housings
and
fan-motor
shaft
bearings.
Contact
your
dealer
for the required
annual maintenance.
Indoor
and
Outdoor
Coils
Cleaning
of the coils
should
only
be done
by qualified
service
personnel.
Contact
your
dealer
for
the
required
annual
maintenance.
Condensate Drain
The drain
pan and condensate
drain
line should
be checked
and
cleaned
at the same
time the cooling
coils are checked
by your
dealer.
Compressor
All compressors
are hermetically
sealed
and do not require periodic
maintenance.
Condenser
Fan
PERSONAL
INJURY
AND
UNIT
DAMAGE
HAZARD
Failure
to follow
this
warning
could
result
in personal
iniury, death or property
damage.
Do not poke
sticks,
screwdrivers,
or any other
object
into
revolving
fan blades.
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