AUTOMODE
Auto
cool/heat/heat
with
electric
heater
as
booster
Every
time
the
unit
is
turned
on,
MTV1
is
on,
AUX1,
AUX2
and
fan
are
off.
MTV2
and
heater
are
always
off.
After
120secs,
the
subsequent
operation
mode
is
decided
according
to
the
following
programs:
a)
If
the
coil
temperature
sensor
(Ti1)
≥
36ºC,
then
MTV1,
AUX1
and
fan
turn
on
or
off
according
to
HEAT
mode.
b)
If
Ti1
<
36ºC,
then
MTV1,
then
AUX2
and
fan
turn
on
or
off
according
to
COOL
mode.
Unit
remains
in
AUTO
COOL
or
AUTO
HEAT
mode
throughout
the
operating
cycle
until
the
user
changes
the
mode
manually
or
restarts
the
unit.
Should
the
Ti1
sensor
be
damaged,
auto
mode
will
not
function.
Auto
heat
with
electric
heater
as
primary
heat
source
/
all
configuration
auto
changeover
If
current
running
mode
is
auto
cool
mode,
then
the
control
logic
will
change
over
to
auto
heat
mode
when
all
the
following
conditions
are
met:
a)
Ts
‐
Tr
≥
1.0°C
(or
4
ºC
if
economy
contact
is
activated)
b)
MTV1
has
stop
≥
10
min.
If
current
running
mode
is
auto
heat
mode,
then
the
control
logic
will
change
over
to
auto
cool
mode
when
all
the
following
conditions
are
met:
a)
Tr
‐
Ts
≥
1.0°C
(or
4
ºC
if
economy
contact
is
activated)
b)
MTV1
has
stop
≥
10
min.
Note:
Auto
cool
or
auto
heat
operation
are
the
same
as
cool
or
heat
mode
respectively.
Содержание FDLA-09
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