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(j
-
COOL mode
of "I
FEEL CONTROL"
-
Compressor &
Outdoor fan motor
OFF
ON
ON
OFF
Indoor
fan motor
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_ _ _ _ _ _
NOTE
•
Coil frost
prevention
during COOL mode of
"I
FEEL CONTROL".
There
are two type
of
controls
in
coil
frost
prevention.
(DTemperature
&
time
control
When
the indoor
coil thermistor RT12 or
RT14 is below
47'
F for 5 minutes,
the
coil
frost prevention mode starts.
The
compressor stops for 5
minutes
and
the indoor
fan runs
at
set speed or AUTO speed.
5 minutes later, if
the
indoor
coil thermistor
RT12
or
RT14
exceeds
50'
F,
the coil
frost
prevention mode
terminates.
If
the RT12 or
RT14 is below 50"F
at this time, the coil frost
prevention
continues
until!
the
thermistor
RT12 or
RT14
reaches
to
50'
F. In
case of MS-09DWfil,
the
coil frost prevention mode starts when the
indoor
coil
thermistor RT12 is below
51
'
F
for
5
min,
and this mode
terminates
when
RT1
2 exceeds 4 7'F.
The first
5
minutes, thermination
of
the
coil
frost
prevention
is
controlled by
the
time regardless of
the indoor
coil
thermistor
temperature. After that, the
termination
of the
prevention mode is controlled by
the temperature of
the indoor
coil
thermistor.
Therefore, the
coil
frost
prevention continues at
least 5 minutes
even if the
temperature
of
RT12 or RT14
reaches the
termination point within 5 minutes.
®
Time
control
Only
MF1
5EN has
this
function
.
When the
three
conditions below
have
been satisfied for
1
hour and 45
minutes,
the
compressor stops
for
3
minutes
and
the
coil frost prevention mode starts.
(a)The compressor
is
on continuously.
(b)The
indoor
fan speed
is LO
or
MED
.
(c)The
room
temperature
is below
79'
F.
If
the compressor
turns
off
before 1 hour
and
45 minutes
the accumulated
time
is cancelled.
In this
case,
time
counting starts
from the begining when the
above three conditions are satisfied again.
If
the indoor fan speed becomes
HI
or the
room
temperature exceeds
79'
F,
time
counting stops temporarily.
In
this case, time counting
restarts
from the stop
point
when
the
above three
conditions are
satisfried again.
The indoor
fan operates at
the
set speed.
•Indoor fan operates at
the
set speed
by FAN
CONTROL switch.
Followings
are the fan speed
in
AUTO.
Room
temp.
minus
Set
temp.
:
more
than
4
~
7 deg. ("F)
···
HI -
-
-
-
-
-
-
-
-
- - ~--~
Room temp. minus
Set
temp.
:
2
~
7 deg.("F) ···
··················MED
-
- - -
t
f
Room
temp.
minus
Set
temp.
:
less than
2
~
3 deg.
("F)
•·
····LO
____
_
l___J
4
deg.
7
deg.
2
deg. 3 deg.
-
DRY mode
of "I
FEEL CONTROL"
-
The
system
uses the
same
refrigerant
circuit as
the
cooling circuit for dry operation.
The compressor and
the indoor
fan are controlled
by
both temp. and
the microprocessor.
By such controls,
indoor flow
amounts will be
reduced in
order to
lower humidity
without
much
room
temp
.
decrease.
The operation of the comp. and
indoor
fan
is
as
follows on
the
next page.
24
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