Page 28 of 62
SK2014
‐
SON
‐
002
‐
TechMnl
‐
FMCD
‐
003
POST
‐
HEAT
With
and
Without
Electrical
Heater
a)
AUX1
is
turned
off.
Electrical
heater
is
turned
off.
b)
Indoor
fan
will
shut
down
after
the
unit
has
been
turned
off
for
20
seconds.
LOW
TEMPERATURE
PROTECTION
OF
INDOOR
COIL
a)
If
Ti1
≤
2ºC
for
2
minutes,
then
AUX2
is
turned
off.
If
indoor
fan
runs
at
low
speed,
then
it
will
run
at
medium
speed.
If
indoor
fan
runs
at
medium
or
high
speed,
then
it
will
run
at
set
speed.
b)
If
Ti1
≥
5ºC
for
2
minutes,
then
AUX2
is
turned
on.
Indoor
fan
runs
at
set
speed.
OVER
‐
HEAT
PROTECTION
OF
INDOOR
COIL
a)
If
Ti1
≥
75ºC,
then
AUX1
is
turned
off.
Indoor
fan
remains
on
and
runs
at
high
speed.
b)
If
Ti1
<
70ºC,
then
AUX1
is
turned
on.
Indoor
fan
remains
and
runs
at
set
speed.
c)
If
the
indoor
coil
temperature
sensor
is
damaged,
then
the
protection
mode
will
be
overridden
and
the
unit
will
work
according
to
the
pre
‐
heat
and
post
‐
heat
program.
DEHUMIDIFICATION
MODE
a)
MTV1,
MTV2,
AUX1
and
heater
are
always
off.
b)
If
Tr
≥
25ºC,
then
the
indoor
fan
and
AUX2
will
be
turned
on
for
3
minutes,
and
then
off
for
4
minutes.
c)
If
16ºC
≤
Tr
<
25ºC,
then
the
indoor
fan
and
AUX2
will
be
turned
on
for
3
minutes,
and
then
off
for
6
minutes.
d)
If
Tr
<
16ºC,
then
the
indoor
fan
and
AUX2
will
be
turned
off
for
4
minutes.
e)
At
the
end
of
the
above
dehumidification
cycle,
the
system
will
decide
the
next
dehumidification
control
option.
Indoor
fan
will
run
at
low
speed
throughout
the
dehumidification
process.
AUTO
‐
MODE
a)
Not
allowed.
C.1.6.
Control
Logics
for
4
‐
Pipe
System
Note:
Unit
is
equipped
with
a
4x2
switching
device.
COOL
MODE
a)
MTV2,
AUX1
and
Electrical
Heater
are
always
off.
b)
If
Tr
≥
Ts
+
1ºC
(or
+
4ºC
if
economy
contact
is
activated),
then
cool
operation
is
activated,
MTV1
and
AUX2
are
turned
on.
Indoor
fan
runs
at
set
speed.
c)
If
Tr
<
Ts,
then
cool
operation
is
terminated,
MTV1
and
AUX2
are
turned
off.
Indoor
fan
runs
at
set
speed.
d)
The
range
of
Ts
is
16
‐
30ºC
e)
Indoor
fan
speed
can
be
adjusted
to
low,
medium,
high
and
auto.
f)
When
turned
on,
MTV1
requires
30
seconds
before
it
is
fully
open.
g)
When
turned
off,
MTV1
requires
120
seconds
before
it
is
fully
closed.
h)
When
the
unit
is
turned
off,
the
indoor
fan
will
shut
down
after
5
seconds.
FAN
MODE
a)
Indoor
fan
runs
at
the
set
speed
while
heater,
MTV1,
MTV2,
AUX1
and
AUX2
are
turned
off.
b)
Indoor
fan
speed
can
be
adjusted
to
low,
medium
and
high.
Содержание FMCD*ECM series
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Страница 21: ...Page 21 of 62 SK2014 SON 002 TechMnl FMCD 003 C 1 3 Wiring Diagram SK NCFMCD 001 ...
Страница 45: ...Page 45 of 62 SK2014 SON 002 TechMnl FMCD 003 C 4 2 Wiring Diagram SK NCFMCD 002 ...
Страница 62: ...Page 62 of 62 SK2014 SON 002 TechMnl FMCD 003 ...
