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UNIT
FEATURES
Fig.
2
—-
E-TAC
Front
Panel
This
E-TAC
has
many
exciting
features
which
are
different
than
those
found
on
standard
PTAC
models.
The
owner
must
be
familiar
with
these
features
in
order
to
fully
understand
the
operation
and
capability
of
the
unit.
*
Intelligence
—
Your
E-TAC
unit
has
an
on
board
computer
that
utilizes
real
time
diagnostics
to
prolong
the
life
of
your
unit.
There
is
an
LED
indicator
on
the
control
board,
behind
the
front
panel,
that
will
flash
an
error
code
if
the
unit
has
detected
some
kind
of
fault
condition.
In
many
cases,
the
unit
will
automatically
clear
the
fault
condition
and
continue
operating
with
no
interruption.
In
some
cases,
the
condition cannot
be
cleared
and
the
unit will
require
service.
In
those
cases,
an
“Fx”
failure
mode
will
be
displayed
on
the
digital
display.
For
a
detailed
list
of
all
error
codes
and
“Fx”
conditions,
see
Table
6
-
Status
LED
Indicator
Definitions
for
further
details.
«
Memory
—
Your
E-TAC
unit
also
has
memory.
If
power
is
lost,
all
of
the
control
settings
(setpoint,
mode,
fan
speed,
on/off
and
configuration)
are
remembered.
So
when
power
is
restored,
the
unit
will
start
back
up
in
the
mode
(and
configuration)
it
was
in,
when
power
was
lost.
¢
Premium
Sound
—
Your
Premium
E-TAC
is
also
the
quietest
PTAC
ever.
Not
only
does
it
have
2
fan
motors
and
a
tangential
blower
wheel
for
optimum
sound,
the
indoor
fan will
always
run
a
minimum
of
10
seconds
before
the
compressor,
to
help
reduce
any
compressor
starting noise.
*
Random
Compressor
restart
-
To
help
prevent
power
surges
after
a
power
outage
(from
many
of
your
E-TACs
starting
at
the
same
time),
the
compressor
is
equipped
with
a
2:45
to
3:15
random
restart
delay
feature.
Whenever
the
unit
is
plugged
in,
or
power
has
been
restarted,
a
random
compressor
restart
will
occur.
«
Dry
Mode
—
will
help
to
manage
and
reduce
the
humidity
in
the
room,
making
it
more
comfortable.
In
DRY
mode,
the
unit
will
modulate
cooling
mode
at
low
fan
speed
until
the
room
temperature
is
4
deg.
F
below
the
room
temperature
setting
regardless
of
fan
mode
selection.
Dry
mode
should
not
be
considered
a
substitute
for
a
stand
alone
dehumidifier.
*
Compressor
Protection
-
To
prevent
short
cycling
of
the
compressor
and
maximize
it’s
life,
there
is
a
random
start-up
delay
of
3
minutes
on
the
compressor
and
a
minimum
compressor
run
time
of
3
minutes.
*
Automatic
room
freeze
protection
—
automatically
will
keep
the
temperature
in
the
room
from
getting
too
cold,
where
water
pipes
might
freeze.
If
the
unit
is
configured
for
the
freeze
protection
feature
to
be
active
(which
is
the
default
condition),
then
whenever
power
is
supplied
to
the unit,
if
the
unit
senses
temperature
below
40°F
(4.4°C),
the
fan
motor
and
electric
heater
are
turned
on
and
will
warm
the
room
to
50°F
(10°C).
If
Freeze
protection
is
not
required,
change
the
configuration
switch
to
turn
the
feature
off
(see
section
on
unit
configuration).
*
Automatic
defrost
protection
(for
heat
pump
models
only)
—
When
the
outdoor
temperature
gets
too
cold
(approx.
40°F
/
4.4°C)
and
the
unit
can
no
longer
effectively
heat
with
the
compressor,
the
unit
will
automatically
switch
to
electric
heating.
The
unit
will
then
heat
with
electric
heat
until
the
outside
temperature
rises
enough
(approx.
40°F
/
4.4°C),
so
the
compressor
can
be
used
again.
*
Automatic
Quick
Warm-up
(for
heat
pump
models
only)
-
If
the
room
temperature
falls
to
5°F
(2.8°C)
below
the
set
point
temperature,
the
reverse
cycle
heat
is
shut
off
and
the
electric
strip
heat
is
turned
on
for
one
cycle,
until
heating
is
satisfied.
*
LED
Indicator’s
and
Buttons
-
The
touch
pad
has
buttons
for
MODE,
FAN
SPEED,
ON/OFF,
SETPOINT
UP
and
SETPOINT
DOWN.
It
also
has
LEDs
that
correspond
to
the
mode,
fan
speed
and
setpoint
operation,
to
indicate
the
unit’s
status.
The
LEDs
below
the
mode
button,
FAN,
COOL,
and
HEAT,
indicate
what
operating
mode
is
active.
The
LEDs
below
the
Fan
button,
Low,
Med
and
Hi,
indicate
the
fan
speed
that
is
selected.
The
LED
located
in
the
lower
right
corner
is
the
unit
On/Off
status
LED.
If
the
unit
is
in
ON
mode,
the
LED
will
be
green.
If
the
unit
is
OFF,
the
LED
will
be
red.
*
Configure
Fan
to
Optimize
Selected
Application
—
Unit
can
be
optimized
to
selected
application
by
configuring
the
fan
to
run
in
continuous
mode
or
cycle
on
and
off
with
the
compressor
and
electric
heater
(can
be
different
for
both
heating
and
cooling
modes).
In
cycle
mode,
fan
will
continue
to
run
60
seconds
after
compressor
or
electric
heater
stops
in
order
blow
off
any
residual
heat
or
cool
left
on
coil.
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