M Design ACP-09CH25AEMI/I User manual

SERVICE MANUAL
M DESIGN, I N V E R TE R S E R I E S
2017
SERVICE
MANUAL

Table of Contents Page
1. Safety
Precautions
........................................................................................ 1
1. In
case
of
Accidents
or Emergency
2.
Pre-Installation
and Installation
3.
Operation
and Maintenance
2.
Specifications
................................................................................................ 3
1.
Model
Reference
2.
Electrical Wiring
Diagrams
3.
Product Features
........................................................................................... 9
1.
Operation Modes
and Functions
4. Maintenance and
Disassembly
.................................................................... 17
1. Maintenance
2. Disassembly
5.
T
r
oubleshooting
............................................................................................ 56
1.
Safety
Caution
2.
General
Troubleshooting
3.
Error Diagnosis
and
Troubleshooting Without Error
Code
4.
Quick Maintenance
by
Error
Code
5.
Troubleshooting
by
Error
Code
Appendix ............................................................................................................. 82
i)
Temperature Sensor Resistance Value Table
for T1,T2,T3 and T4
(°C –
K)
ii)
Temperature Sensor Resistance Value Table
for TP
(°C –
K)

Safety Precautions
Contents
1. In
Case
of
Accidents
or
Emergency
......................................................................2
2. Pre-Installation.......................................................................................................2
3. Operation and Maintenance.................................................................................2

Safety
Pr
ecautions
To
prevent personal injury ,
or
property
or
unit
damage,
adhere
to all
precautionary measures
and instructions
outlined
in
this manual. Before servicing
a
unit, refer
to this
service manual
and its
relevant
sections.
Failure
to
adhere
to all
precautionary measures listed
in this
section may result
in
personal injury , damage
to the
unit
or to
property,
or in
extreme cases,
death.
WARNING indicates
a
potentially
hazardous
situation
which
if not
avoided could result
in serious
personal
injury ,
or death.
CAUTION indicates
a
potentially hazardous situation
which
if not
avoided could result
in
minor
or
moderate
personal injury ,
or
unit
damage.
1. In
case
of
Accidents
or Emergency
WARNING
• •
If a gas
leak
is
suspected, immediately turn
off the
gas and
ventilate
the
area
if a gas
leak
is
suspected
before turning
the
unit
on.
• •
If
strange sounds
or
smoke
is
detected from
the unit,
turn
the
breaker
off and
disconnect
the
power
supply
cable.
• •
If the
unit comes into contact with liquid, contact
an
authorized service
center.
• •
If
liquid from
the
batteries makes contact with skin
or
clothing, immediately rinse
or
wash
the
area well
with
clean
water.
• •
Do not
insert hands
or
other objects into
the air inlet
or
outlet while
the
unit
is
plugged
in.
• •
Do not
operate
the
unit with
wet hands.
• •
Do not use a
remote controller that
has previously
been exposed
to
battery damage
or
battery
leakage.
CAUTION
• • While unpacking
be
careful
of
sharp edges
around
the
unit
as
well
as the
edges
of the
fins
on the con-
denser
and evaporator.
3. Operation and Maintenance
WARNING
• •
Do not use
defective
or
under-rated circuit
breakers.
• • Ensure
the
unit
is
properly grounded
and
that
a
dedicated circuit
and
breaker
are installed.
• •
Do not
modify
or
extend
the
power cable.
Ensure
the
power cable
is
secure
and not
damaged
during
operation.
• •
Do not
unplug
the
power supply plug
during
operation.
• •
Do not
store
or use
flammable materials near
the
unit.
• •
Do not
open
the
inlet grill
of the
unit
during
operation.
• •
Do not
touch
the
electrostatic filter
if the
unit
is
equipped with
one.
• •
Do not
block
the
inlet
or
outlet
of air flow to the unit.
• •
Do not use
harsh detergents, solvents,
or
similar
items
to
clean
the
unit.
Use a soft
cloth
for cleaning.
• •
Do not
touch
the
metal parts
of the
unit
when
removing
the air
filter
as
they
are
very
sharp.
• •
Do not
step
on or
place anything
on the
unit
or
outdoor
units.
• •
Do not
drink water drained from
the unit
• • Avoid direct skin contact with water drained from
the
unit.
• •
Use a
firm stool
or
step ladder according
to
manufacturer procedures when cleaning
or
maintaining
the unit.
CAUTION CAUTION
• •
Clean and
ventilate
the
unit
at
regular intervals
when
operating
it
near
a
stove
or
near similar
devices.
• •
Do not use the
unit during severe weather
conditions.
If
possible, remove
the
product from
the window
before such
occurrences.
2.
Pre-Installation
and Installation
WARNING
• •
Do not
install
or
operate
the
unit
for an extended
period
of
time
in
areas
of
high humidity
or in an
environment directly exposing
it to sea
wind
or salt
spray.
• •
Do not
install
the
unit
on a
defective
or
damaged
installation stand,
or in an
unsecure
location.
• • Ensure
the
unit
is
installed
at a
level
position
• •
Do not
install
the
unit where noise
or air
discharge
created
by the
outdoor unit will negatively impact
the
environment
or
nearby
residences.
• •
Use
this unit only
on a
dedicated
circuit.
• • Damage
to the
installation area could cause
the unit
to fall,
potentially resulting
in
personal injury,
prop-
erty damage,
or
product
failure.
• • Only qualified personnel should disassemble,
install,
remove,
or
repair
the unit.
• • Only
a
qualified electrician should perform
electri-
cal work.
For more information, contact your
dealer,
seller,
or an
authorized Midea service
center.
• •
Do not
expose skin directly
to the air
discharged
by
the
unit
for
prolonged periods
of time.
• • Ensure
the
unit operates
in
areas water
or other
liquids.
• • Ensure
the
drain hose
is
installed correctly
to ensure
proper water
drainage.
• •
When
lifting
or
transporting
the
unit,
it is
recommended that
two or
more people
are
used
for
this
task.
• •
When the
unit
is not to be
used
for an
extended
time,
disconnect
the
power supply
or
turn
off the breaker.

Page
2 

Specifications
Contents
1. Model Reference....................................................................................................4
2.
Electrical
Wiring
Diagrams
....................................................................................5
2.1
Indoor Unit
.................................................................................................... 5
2.2
Outdoor Unit
................................................................................................. 7

Specifications
1. Model Reference
Refer
to the
following table
to
determine
the
specific indoor
and
outdoor unit model number
of
your
purchased
equipment.
Indoor Unit Model Outdoor Unit Model
Capacity
(Btu) Power Supply
ACP-09CH25AEMI/I ACP-09CH25AEMI/O 9K
220-240V~,
50Hz,
1Phase
ACP-12CH35AEMI/I ACP-12CH35AEMI/O
12K
ACP-18CH50AEMI/I ACP-18CH50AEMI/O
18K
ACP-24CH70AEMI/I ACP-24CH70AEMI/O
24K

Page
4 

Specifications
2.
Electrical
Wiring Diagrams
2.1 Indoor
unit
Abbreviation Paraphrase
Y/G Yellow-Green
Conductor
ION Positive
and
Negative Ion
Generator
CAP Capacitor
PLASMA Electronic Dust
Collector
to CCM Comm.Bus
Central Controller
(for
CAC)
X Y
E
485
Communication
Line
L LIVE
N NEUTRAL
Heater
The
Electric Heating Belt
of
Indoor
Unit
T1 Indoor Room
Temperature
T2
Coil
Temperature
of
Indoor Heat Exchanger
Middle
T3
Coil
Temperature
of Condenser
T4 Outdoor Ambient
Temperature
TH Compressor Suction
Temperature
EEV Electirc Expansive
Valve
TP Compressor Discharge
Temperature
T2B
Coil
Temperature
of
Indoor Heat Exchanger
Outlet

Page
5 

Specifications
2
ACP-09CH25AEMI/I
; ACP-12CH35AEMI/I; ACP-18CH50AEMI/I;
ACP-24CH70AEMI/I
OPTIONAL
OPTIONAL
CAP
Applicable
to
INDOOR WIRING
DIAGRAM
Y/G
ION
AC motor only
M M
M
16022000020169
3
5(3or2)
HEATER
P1
P2
SWITCH
BOARD
2
CN701
S
4
OP TIONA L
3
Applicalbe for MONO unit
with
Applicable
for MULTI and
MONO unit without 1W
standby control feature
X Y E 12V/5V HA
HB
OP TIONA L
OPTI O NA L
1W standby control
feature
To CCM Comm.Bus or
485 Wire-controller
To Randomly To
Remote
Alarm
Connected
Wire-c ontroller
To Remote Switch
- - - - This symbol indicates
the
element is optional,the
actual
shape shall
prevail.

Page
6 

AC-F
AN
CAPACITOR
AMBIENT
TEMP. SENSOR
RED
Specifications
2.2 Outdoor
Unit
Abbreviation Paraphrase
4-WA
Y
Gas
Valve Assembly/4-WAY
VALVE
AC-F AN Alternating Current
FAN
DC-FAN Direct Current F AN
CT1 AC
Current
Detector
COMP Compr essor
L-PRO
Low
Pressure Switch
H-PRO High Pressure
Switch
ACP-09CH25AEMI/O; ACP-12CH35AEMI/O,;
ACP-18CH50AEMI/O
Y/G
Y/G
BROWN
BLUE OR
BLACK
Y/G
W 1(L) 2(N) S L N
Y/G
I NDOOR UNI
T
4
- W AY
CRANKCASE
HEATER
PAN
HEATER
BLUE
BLACK
U V
W
CN 7
Y/G
Y/G
Y/G
OPTIONAL:
DC-FAN

Page
7 

HEATER
1
Specifications
BROWN
OPTIONAL
OPTIONAL
ACP-18CH50AEMI/O;
ACP-24CH70AEMI/O
16022000019069
OPTIONAL
Applicable
to
the units
adopting
DC motor
only
3
Applicable
to
the units
adopting
AC motor
only
HEATER
2
CN4(
CN5)
OPTIONAL:
CN30
BLUE
CN3
（
YELLOW
）
BLACK(BLUE)
Y/G
TO I NDOOR UNI T POWER
SUPPLY

Page
8 

Product
Features
Contents
1. Operation Modes and
Functions
........................................................................10
1.1
Abbr eviation ...........................................................................................
..... 10
1.2
Safety Features
............................................................................................ 10
1.3
Display Function
.......................................................................................... 11
1.4
Fan Mode
.................................................................................................... 11
1.5
Cooling Mode
............................................................................................. 11
1.6
Heating Mode
............................................................................................. 12
1.7
Auto-
mode .................................................................................................. 12
1.8
Drying Mode
............................................................................................... 12
1.9
Forced Operation Function
.......................................................................... 12
1.10
Sleep Function
............................................................................................. 13
1.11
Auto-Restart
Function .................................................................................. 13
1.12
Refrigerant Leakage Detection
..................................................................... 13
1.13
8°C Heating(Optional)
................................................................................ 13
1.14 Self
Clean(Optional) .................................................................................... 13
1.15
Follow Me(Optional)
................................................................................... 13
1.16
Silence
（
Optional)

....................................................................................... 13
1.17
Information Inquiry
...................................................................................... 13

P
r
oduct
Featu
r
es
1. Operation Modes and
Functions
1.1 Abbr
eviation
Unit element abbreviations
Abbreviation Element
T1
Indoor room
temperature
T2 Coil
temperature
of evaporator
T3 Coil
temperature
of condenser
T4
Outdoor ambient
temperature
TS Set temperature
TP
Compressor discharge
temperature
1.2 Safety
Featur es
Compressor
three-minute delay at restart
Compressor functions
are
delayed
for up to one minute
upon
the
first startup
of the
unit,
and are
delayed
for up to
three minutes upon subsequent unit
restarts.
Automatic shutoff
based
on
compressor top
temperatur
e
The
unit ceases operation when
the
compressor
top
temperature exceeds
a
pre-determined threshold.
The unit
will restart after
the
temperature guard
of the
compr essor
top
r estarts.
Automatic shutoff
based
on
discharge temperatur
e
If the
compressor discharge temperature exceeds 115°C
for
five seconds,
the
compressor ceases operation.
Automatic shutoff
based
on fan speed
If the
indoor
fan
speed registers below 300RPM
for an
extended period
of
time,
the
unit ceases operation
and the
corresponding error code
is
displayed
on the
indoor
unit.
Inverter module protection
The
inverter module
has an
automatic shutoff mechanism
based
on the
unit ’ s current, voltage,
and temperature.
If
automatic shutoff
is
initiated,
the
corresponding
error
code
is
displayed
on the
indoor unit
and the
unit
ceases
operation.
Indoor fan delayed
operation
•
When the
unit starts,
the
louver
is automatically
activated
and the
indoor
fan
will operate after
a period
of 7 seconds.
•
If the
unit
is in
heating mode,
the
indoor
fan is
regulated
by the
anti-cold wind
function.
Compressor pr eheating
Preheating
is
automatically activated when
T4
sensor
is
lower than 3 °C .
Sensor redundancy
and automatic shutof
f
•
If one
temperature sensor malfunctions,
the air
conditioner continues operation
and
displays
the
corresponding error code, allowing
for
emergency
use.
•
When
more than
one
temperature sensor
is
malfunctioning,
the air
conditioner ceases
operation.
Refrigerant leakage detection
This function
is
active only when cooling mode
is selected.
It
will detect
if the
compressor
is
being damaged
by
refrigerant leakage
or by
compressor overload. This
is
measured using
the
coil temperature
of
evaporator
T2
when
the
compressor
is in operation.

Page
10 

Function Display
Temperature Set
temperature
value
Temperature
(fan and
Drying
mode)
Room
temperature
Activation
of Timer
ON,
Fresh,
Swing,
Turbo,
or Silent
(3s)
Cancellation
of
Timer OFF,
Fresh,
Swing,
Turbo,
or Silent
(3s)
Defrost
Warming
in
heating
mode
Self-clean (available
on
select units
only)
Heating
in room
tempurature
under 8°C
P
r
oduct
Featu
r
es
1.3
Display
Function
Unit display
functions
1.4
Fan Mode
When fan
mode
is activated:
•
The
outdoor
fan and
compressor
are
stopped.
• Temperature control
is
disabled
and no
temperatur e
setting
is displayed.
•
The
indoor
fan
speed
can be set to
high,
med, low, or
auto.
•
The
louver operations
are
identical
to
those
in cooling
mode.
•
Auto fan: In
fan-only mode,
AC
operates
the
same
as
auto
fan in
cooling mode with
the
temperature
set at
24°C.
1.5
Cooling Mode
1.5.1
Compressor
Control
∆T is the
programmed parameter
of
temperatur e
compensation.
•
When
T1-Ts
< ∆T-2℃, the
compressor
ceases
operation.
•
When
T1-Ts
> ∆T-0.5℃, the
compressor continues
operation.
•
When the AC is
operating
in
mute mode,
the
compressor operates
at a low frequency.
•
When the
current exceeds
the
preset value,
the current
protection function activates
and the compressor
ceases
operation.
1.5.2 Indoor
Fan
Control
•
In
cooling mode,
the
indoor
fan
operates continuously .
The fan
speed
can be set to
high, medium,
low, or auto.
•
If the
compressor ceases operations when
the
configured temperature
is
reached,
the
indoor
fan
motor
operates
at the
minimum
or
configured
speed.
1.5.3 Outdoor
Fan
Control
• For ACP-18CH50AEMI/I & MSAFDU-
24HRFN1-QRD0GW,
The
outdoor unit will
be run at
different
fan
speed according
to T4.
• For ACP-09CH25AEMI/I, MSAFBU-
12HRDN1-QRD0GW
and MSAFCU-18HRFN1-
QRD0GW(S1)
, The
outdoor unit will
be run at
different
fan
speed according
to T4 and compressor
frequency.
• For different outdoor units,
the fan
speeds
are
different.
1.5.4
Condenser
Temperature Protection

Page
11 

P
r
oduct
Featu
r
es
When
condenser temperature
is
more than setting
value,
the
compressor will
stop.
1.5.5 Evaporator Temperature Protection
When
evaporator temperature drops below
a configured
value,
the
compressor
and
outdoor
fan
ceases operations.
1.6 Heating
Mode
1.6.1
Compressor
Control
∆T is the
programmed parameter
of
temperatur e
compensation.
•
When
T1-Ts>- ∆ T,
the
compressor ceases
operation.
•
When
T1-TS< ∆ T-1.5°C,
the
compressor continues
operation.
•
When the AC is
operating
in
mute mode,
the
compressor operates
at a low frequency.
•
When the
current exceeds
the
preset value,
the current
protection function activates
and the compressor
ceases
operation.
1.6.2 Indoor
Fan
Control:
•
When the
compressor
is on, the
indoor
fan can be set
to high/medium/low/auto.
•
When
indoor unit coil temperature
is low, the anti-cold
air
function will start
and
indoor
fan
motor will
run
at low
speed,
the
speed can’ t
be
changed
,when the
temperature
is
lower than setting value,
the
indoor
fan
motor will
stop.
•
When the
indoor temperature reaches
the setting
temperature,
the
compressor will stop,
the indoor fan
motor will
run at the minimum
speed
or setting
speed.(The anti-cold
air
function
is valid).
1.6.3 Outdoor
Fan
Control:
• For ACP-18CH50AEMI/I & ACP-
24CH70AEMI/I,
the
outdoor unit will
be run at
different
fan
speed according
to T4.
• For ACP-09CH25AEMI/I,
ACP-12CH35AEMI/I
and
ACP-18CH50AEMI/I , the
outdoor unit will
be run at
different
fan
speed according
to T4 and
compressor
frequency.
• For different outdoor units,
the fan
speeds
are
different.
1.6.4 Defrosting mode
• For ACP-09CH25AEMI/I, ACP-24CH70AEMI/I
and
ACP-18CH50AEMI/I
,
the
unit enters defrosting
mode
according
to
changes
in the
temperature value
of T3,
the
temperature value
of T4 as
well
as the
compr essor
running
time.
• For ACP-18CH50AEMI/I & ACP-
24CH70AEMI/I,
the
unit enters defrosting
mode
according
to
changes
in the
temperature value
of T3
as
well
as the
compressor running
time.
•
In
defrosting mode,
the
compressor continues
to run,
the
indoor
and
outdoor motor will cease
operation, the
defrost light
of the
indoor unit will turn
on, and
the
“ ” symbol
is displayed.
•
If
any
one of the
following conditions
is satisfied,
defrosting ends
and the
machine switches
to normal
heating
mode:
•
T3
rises above TCDE1 °C .
•
T3
maintained above TCDE2°C
for 80 seconds.
• For ACP-09CH25AEMI/I,
ACP-12CH35AEMI/I
and
ACP-18CH50AEMI/I
, unit runs
for 15 minutes
consecutively
in
defrosting
mode.
• For ACP-18CH50AEMI/I & ACP-24CH70AEMI/I
, unit
runs
for 10
minutes
consecutively
in
defrosting
mode.
1.6.5 Evaporator Temperature Protection
When the
evaporator temperature exceeds
a preset
protection value,
the
compressor
stops.
1.7
Auto-mode
• This mode
can be
selected with
the
remote
controller
and the
setting temperature
can be
changed
between
17°C~30°C
.
•
In
auto mode,
the
machine selects cooling, heating,
or
fan-only mode
on the
basis
of ∆T (∆T =T1-Ts).
∆T
Running
mode
∆T>2℃ Cooling
-2℃≤∆T≤2℃ Fan-only
∆T<-2℃ Heating*
Heating*:
In
auto mode, cooling only models
run the fan
•
The
louver operates same
as in
relevant mode.
•
If the
machine switches mode between heating
and
cooling,
the
compressor will keep stopping
for certain
time
and
then choose mode according
to T1-Ts.
•
If the
setting temperature
is
modified,
the
machine
will
choose running function
again.
1.8 Drying mode
• Indoor
fan
speed
is
fixed
at
breeze
and
can’ t
be
changed.
The
louver angle
is the
same
as in cooling
mode.

Page
12 

P
r
oduct
Featu
r
es
•
All
protections
are
active
and the
same
as
that
in
cooling
mode.
1.9
Forced
operation function
• Forced cooling
mode:
The
compressor
and
outdoor
fan
continue
to run and the
indoor
fan
runs
at low
speed.
After
running
for 30
minutes,
the AC
will switch
to
auto mode with
a preset
temperature
of
24°C.
• Forced auto
mode:
Forced auto mode operates
the
same
as
normal auto
mode
with
a
preset temperature
of
24°C.
•
The
unit exits forced operation when
it
receives
the
following
signals:
• Switch
on
• Switch
off
• Timer
on
• Timer
off
• Changes in:
• mode
•
fan speed
• sleeping
mode
• Follow
me
1.10
Sleep
function
•
The
sleep function
is
available
in
cooling, heating,
or
auto
mode.
•
The
operational process
for
sleep mode
is as follows:
•
When
cooling,
the
temperature rises 1°C
(to not
higher
than 30°C) every
hour. After 2
hours,
the
temperature
stops rising
and the
indoor
fan is fixed at low speed.
•
When
heating,
the
temperature decreases 1°C(to
not
lower than 17°C) every
hour. After 2
hours,
the
temperature stops decreasing
and the
indoor
fan is
fixed
at low
speed. Anti-cold wind function
takes
priority.
•
The
operating time
for
sleep mode
is 7
hours,
after
which,
the
unit exits this mode
and
switches
off.
•
The
timer setting
is
available
in
this
mode.
1.11 Auto-Restart function
•
The
indoor unit
has an
auto-restart module
that
allows
the
unit
to
restart automatically.
The module
automatically stores
the
current settings (not
incl
•
the
swing setting)
and, in the
case
of a
sudden
power
failure, will restore those setting automatically within
3
minutes after power
returns.
•
If the
unit
was in
forced cooling mode,
it
will
run in
this
mode
for 30
minutes
and
turn
to
auto mode
with
temperature
set to
24°C.
•
If
there
is a
power failure while
the
unit
is
running,
the
compressor starts
3
minutes after
the
unit restarts.
If the
unit
was
already
off
before
the
power failure,
the
compressor starts
1
minute after
the
unit
restarts.
1.1 Refrigerant
Leakage
Detection
With
this
new
technology,
the
display area will show “EC”
when
the
outdoor unit detects refrigerant
leakage.
1.2 8
°C Heating(Optional)
In
heating mode,
the
temperature
can be set to as low
as
8°C, preventing
the
indoor area
from
freezing
if
unoccupied during severe cold
weather.
1.3 Self clean(Optional)
•
If
you press “Self Clean” when
the
unit
is in
cooling
or
drying
mode:
• For cooling models,
the
indoor unit will
run in low fan
mode
for a
certain time, then ceases
operation.
• For heat pump models,
the
indoor unit will
run in
fan-only mode, then
low heat, and
finally
in fan-
only
mode.
•
Self Clean
keeps
the
indoor unit dry
and
prevents
mold
growth.
1.4 Follow me(Optional)
•
If
you press “Follow Me”
on the
remote,
the indoor
unit
will beep. This indicates
the
follow
me
function
is
active.
•
Once
active,
the
remote control will send
a signal
every
3
minutes, with
no
beeps.
The
unit
automatically
sets
the
temperature according
to the measurements
from the
remote
control.
•
The
unit will only change modes
if the information from
the
remote control makes
it
necessary,
not from the
unit ’ s temperature
setting.
•
If the
unit does
not
receive
a
signal
for 7
minutes
or
you press “Follow Me,”
the
function turns
off. The
unit
regulates temperature based
on its own sensor and
settings.
1.5
Silence (Optional)

Page
13 

P
r
oduct
Featu
r
es
Press “Silence”
on the
remote control
to
enable
the
SILENCE
function. While this function
is
active,
the
compressor
frequency
is
maintained
at a
lower level
than F2. The
indoor unit will
run at
faint breeze, which
reduces
noise
to
the
lowest possible
level.
1.6 Information Inquiry
•
To
enter information inquiry status, complete
the
following procedure within
ten seconds:
• Press LED
3 times.
• Press
SWING 3 times.
•
If
you
are
successful, you will hear beeps
for two
seconds.
•
Use the
LED
and SWING
buttons
to
cycle
through
information
displayed.
• Pressing LED will display
the
next code
in the
sequence. Pressing
SWING
will show
the
pr evious.
•
The
following table shows information codes.
The
screen will display this code
for two
seconds, then
the
information
for 25 seconds.

Page
14 

P
r
oduct
Featu
r
es
Displayed
code Explanation Displayed Meaning Additional Notes
value
T1
T2
T3
T4
Tb
TP
TH
FT
Fr
Room
temperature
-1F,-1E,-1d,-1c,-
1b,-1A
-19—99
A0,A1,…A9
b0,b1,…b9
c0,c1,…c9
d0,d1,…d9
E0,E1,…E9
F0,F1,…F9
-25,-24,-23,-22,
-21,-20
-19—99
100,101,…109
110,111,…119
120,121,…129
130,131,…139
140,141,…149
150,151,…159
1. All displayed
temperatures
use
actual
values.
2. All
temperatures
are
displayed
in
°C
regardless
of remote
used.
3. T1, T2, T3, T4, and
T2B
display
ranges
from -25 to 70
°C.
TP
display ranges
from
-20 to 130
°C.
4. The
frequency display
ranges
from 0 to
159HZ.
5. If the
actual
values
exceed
or fall short
of the
defined
range,
the
values closest
to
the
maximum
and
minimum values
will
be displayed.
Indoor
coil
temperatur e
Outdoor
coil
temperatur e
Ambient
temperatur e
Outlet temperatur e
of
indoor
coil
Discharge
temperatur e
Suction
temperature
Targeted
frequency
Actual
frequency
IF
Indoor
fan speed
0
1,2,3,4
14-FF
OFF
Low
speed,
Medium
speed, High
speed,
Turbo.
Actual
fan
speed
is
equal
to the display
value converted
to
decimal value
and
multiplied
by 10. This
is
measured
in RPM.
N/A
Used
for
some
large
capacity
motors.
Used
for
some
small
capacity
motors.
The
display value
is 14-
FF
(hexadecimal).
The
corresponding
fan speed
ranges
from 200 to
2550RPM.
OF
Outdoor
fan speed
LA
EXV
opening
angle 0-FF
Actual
EXV
opening
value
is
equal
to
the
display
value
converted
to
decimal
value
and then
multiplied by 2.
-
CT
Compressor
continuous running
time
0-FF 0-255 minutes
If the
actual value
exceeds
or
falls short
of the defined
range,
the
value
closest
to the
maximum
and
minimum will
be
displayed.
ST
Causes
of
compressor
stop
0-99
For
a detailed
explanation,
contact
technical
support.
-

Page
15 