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AC INVERTER MULTI SPLIT
TYPE AIR CONDITIONER
Model: IM-MSV-0903-ACSON
INVERTER
INSTALLATION MANUAL
FOR PIPE HOLE POSITION
IN THE WALL
HOLE O 65.0mm
FOR PIPE HOLE POSITION
IN THE WALL
HOLE O 65.0mm
CENTER
LINE
OUTLINE AND DIMENSIONS
Indoor Unit (WMX-F)
i
Indoor Unit (WMX-G)
INSTALLATION
PLATE
All dimensions are in mm/ (in)
All dimensions are in mm/ (in)
FRONT VIEW
TOP VIEW
SIDE VIEW
A
B
C
FRONT VIEW
TOP VIEW
A
B
C
SIDE VIEW
Dimension
10 / 15 F / FR
20 F / FR
I
32
(1,3)
48
(1,9)
H
12
(0,5)
8
(0,3)
G
47
(1,9)
51
(2,0)
F
47
(1,9)
99
(3,9)
E
278
(10,9)
294
(11,6)
D
719
(28,3)
912
(35,9)
C
181
(7,1)
200
(7,9)
B
291
(11,4)
310
(12,2)
A
815
(32,1)
1060
(41,7)
O
172
(6,8)
160
(6,3)
N
118
(4,6)
138
(5,4)
M
100
(3,9)
160
(6,3)
L
342
(13,5)
403
(15,9)
K
302
(11,9)
354
(13,9)
J
35
(1,4)
43
(1,7)
Dimension
10 / 15 G / GR
I
56
(2,2)
H
8
(0,3)
G
124
(4,9)
F
185
(7,3)
E
246
(9,7)
D
590
(23,2)
C
198
(7,8)
B
260
(10,2)
A
899
(35,4)
O
132
(5,2)
N
128
(5,1)
M
50
(2,0)
L
495
(19,5)
K
419
(16,5)
J
50
(2,0)
E
D
H
G
F
K
L
M
J
I
I
O
N
A
D
K
L
J
M
GF
B
ON
I
I
E
H
Indoor Unit (WMX-G)
All dimensions are in mm/ (in)
FRONT VIEW
TOP VIEW
SIDE VIEW
INSTALLATION
PLATE
A
B
C
A
B
DFG
MH
I
I
ON
M
K
L
J
Dimension
20 G / GR
I
48
(1,9)
H
8
(0,3)
G
51
(2,0)
F
99
(3,9)
E
294
(11,6)
D
912
(35,9)
C
220
(8,6)
B
310
(12,2)
A
1060
(41,7)
O
160
(6,3)
N
138
(5,4)
M
160
(6,3)
L
403
(15,9)
K
354
(13,9)
J
43
(1,7)
ii
Outdoor Unit (MSV25A)
iii
Dimension
MSV25A
A
925
(36,4)
B
839
(33,0)
C
408
(16,0)
D
378
(14,8)
E
15
(0,6)
F
38
(1,5)
G
39
(1,5)
H
590
(23,2)
I
125
(4,9)
J
356
(14,0)
K
296
(11,6)
L
318
(12,5)
W
42
(1,6)
V
216
(8,5)
U
47
(1,8)
T
141
(5,5)
S
428
(16,8)
R
87
(3,4)
Q
160
(6,3)
P
83
(3,2)
O
330
(13,0)
N
630
(24,8)
M
647
(25,4)
All dimensions are in mm/ (in)
A
F
B
HII
ED
C
E
G
K
J
L
O
QPR
M
N
STU
V
WWWWWWW
Dimension
MSV35A
I
390
(15,3)
H
26
(1,0)
G
44
(1,7)
F
488
(19,2)
E
20
(0,8)
D
448
(17,6)
C
141
(5,5)
B
746
(29,4)
A
1028
(40,4)
O
55
(2,2)
N
107
(4,2)
M
311
(12,2)
L
399
(15,7)
K
852
(33,5)
J
408
(16,0)
Outdoor Unit (MSV35A)
All dimensions are in mm/ (in)
A
G
BCC
EDE
G
F
IL
K
J
H
N
M
OOOOOOO
iv
Sharp edges and coil surfaces are potential locations which may cause injury
hazards. Avoid from being in contact with these places.
! Caution
This product is subjected to Waste of Electrical and Electronic Equipment Regulations (WEE
E
Regulations). The waste product shall be separately collected by specific collection and treatment centre
.
P
lease refer to local authorithy for these centres. This is only applicable to European Union countries
.
Ce produit est soumis
à
la r
à
é
r
r
é
é
é
lectriques e
t
é
é
é
ê
é
é
é
é
é
é
é
é
é
î
î
tre ces centres. Ceci
îî
est uniquement applicable aux pays de l'Union Euro
p
é
enne
.
Questo prodotto
è
soggetto alle disposizioni RAEE (Rifiuti di apparecchiature elettriche ed elettroniche)
.
à
à
locali. Questa disposizione
à
è
valida solamente i paes
i
d
el
l
’
U.
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.
é
ctrico y Electr
ó
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ico en materia d
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ñ
ñ
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de colecc
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solamente aplicable a los p
a
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ses de la
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n
i
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n
Europea
.
Dieses Produkt unterliegt den Bestimmungen zur Entsorgung von elektrischen und elektronische
n
G
er
ä
ä
ä
tes
ää
ü
ü
ll bei Ihrer
ö
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п
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.
NOTICE
English
Part No.: A08019020770
INSTALLATION MANUAL
INVERTER MULTI SPLIT TYPE AIR CONDITIONER
This manual provides the procedures of installation to ensure a safe and good standard of operation for the air
conditioner unit.
Special adjustment may be necessary to suit local requirements.
Before using your air conditioner, please read this instruction manual carefully and keep it for future reference.
IM-MSV-0903 (1)-Acson
MODEL
OUTDOOR UNIT
MSV25A / AMSV025A
MSV35A / AMSV035A
INDOOR UNIT
WMX10F / AWMX010F
WMX15F / AWMX015F
WMX20F / AWMX020F
WMX10G / AWMX010G
WMX15G / AWMX015G
WMX20G / AWMX020G
1-1
! CAUTION
Please take note of the following important points when installing.
• Do not install the unit where leakage of flammable gas may occur.
If gas leaks and accumulates at the surrounding of the unit, it may cause fire ignition.
• Ensure that the drainage piping is connected properly.
If the drainage piping is not connected properly, it may cause water leakage which will dampen the
furniture.
• Do not overcharge the unit.
This unit is factory pre-charged. Overcharge will cause over-current or damage to the compressor.
• Ensure that the units panel is closed after service or installation.
Unsecured panels will cause the unit to operate noisily.
CONTENTS
- Outline and Dimensions page i-iv
- Safety Precautions page 1
- Installation Diagram page 2
- Installation of Outdoor Unit page 3
- Installation of the Indoor Unit page 4
- Refrigerant Piping page 5
- Electrical Wiring Connection page 7
- Ampere Limit Change Method page 8
- Vacuuming and Charging page 10
- Indicator Lights page 11
- Air Conditioner Unit Operation page 13
- Operating Range page 13
- Electrostatic filter page 14
- Auto Random Re-start Function page 14
- Service and Maintenance page 15
- Troubleshooting page 16
Before installing the air conditioner unit, please read the following safety precautions carefully.
SAFETY PRECAUTIONS
! WARNING
• Installation and maintenance should be performed by qualified persons who are familiar with local code and
regulation, and experienced with this type of appliance.
• All field wiring must be installed in accordance with the national wiring regulation.
• Ensure that the rated voltage of the unit corresponds to that of the name plate before commencing wiring work
according to the wiring diagram.
• The unit must be GROUNDED to prevent possible hazards due to insulation failure.
• All electrical wiring must not touch the refrigerant piping, compressor or any moving parts of the fan motors.
• Confirm that the unit has been switched OFF before installing or servicing the unit.
• Before servicing inverter air conditioning unit, switch off the power and wait for 2 - 3 minutes for controller to
discharge.
IMPORTANT
DO NOT INSTALL OR USE THE AIR CONDITIONER UNIT IN A LAUNDRY ROOM.
1-2
English
INSTALLATION DIAGRAM
Indoor Unit
Air Filter
Outdoor Unit
Front Frame
Back Housing
ON/OFF Switch
Air Intake
Grille
Indicator Light
Signal Receiver
Drain
House
OUTDOOR UNIT
INDOOR UNIT
Indoor Unit Combination
Indoor Units with model name WMX10F, WMX15F, WMX20F, WMX10G, WMX15G and WMX20G could be coupled with
this outdoor unit. The following table shows the possible coupling combinations available.
However, there are a total of 21 operation combinations available with this outdoor unit, from one unit to four units. For
further details on operation combinations, total capacity and other technical specifications, please refer to the technical manual.
No. Coupling Combinations (WMX)
1 10 + 10 + 10 + 10
2 10 + 10 + 10 + 15
3 10 + 10 + 10 + 20
4 10 + 10 + 15 + 15
5 10 + 10 + 15 + 20
6 10 + 15 + 15 + 15
7 15 + 15 + 15 + 15
Return Air
Air Discharge Nozzle
1-3
The outdoor unit must be installed in such a way, so as to prevent short circuit of the hot discharged air or obstruction to the
smooth air flow. Please follow the installation clearance shown in the figures on the right. Select the coolest possible place
where intake air temperature is not greater than the outside air temperature (maximum 45°C/113°F). Ensure that the unit is
installed 1 or 2 meter away from other electronic devices like television or radio to prevent interference.
Note: If there is any obstacle higher than 2m (6.56ft), or if there is any obstruction at the upper part of the unit, please allow
more space than the figure indicated in the table shown below.
Before installing the piping and connecting rod, please remove the access panel and plastic valve plate cover or service panel
for easy access and safety. Refer to figures shown below.
INSTALLATION OF OUTDOOR UNIT
PLEASE
REMOVE
SERVICE
PANEL
PLEASE
REMOVE
ACCESS PANEL
& PLASTIC
VALVE COVER
PLATE WHEN
CONNECTING
THE PIPING
AND
CONNECTING
CORD.
PUSH & PULL UP
Dimension A
Minimum 300 1000
Distance (mm) (11.8) (39.4)
Installation Clearance
B C
D
300
(11.8)
500
(19.7)
CD
AB
SERVICE SPACE
RETURN AIR
OBSTACLE
AIR DISCHARGE
OBSTACLE
RETURN AIR
OBSTACLE
OBSTACLE
1-4
English
Hole With Cone Drill
Indoor Side
Outdoor Side
INSTALLATION OF THE INDOOR UNIT
Mounting Installation Plate
Ensure that the wall is strong enough to withstand the weight
of the unit. Otherwise, it is necessary to reinforce the wall
with plates, beams or pillars.
Use the level gauge for horizontal mounting, and fix it with
4 suitable screws.
In case the rear piping draws out, drill a hole 65mm in diam-
eter with a cone drill, slightly lower on the outside wall (see
figure).
Mount The Unit Onto The Installation Plate
Hook the indoor unit onto the upper portion of the
installation plate (Engage the two hooks at the rear top of
the indoor unit with the upper edge of the installation plate).
Ensure that the hooks are properly seated on the
installation plate by moving it to the left and right.
Water Drainage Piping
The indoor drain pipe must be in a downward gradient for
smooth drainage. Avoid situations that are likely to cause
water to leak.
End
Dipped
Into
Water
Water
Leaking
Water
Leaking
Water
Leaking
The indoor unit must be installed in such a way so as to
prevent short circuit of the cool discharged air with the hot
return air. Please follow the installation clearance shown in
the figure. Do not place the indoor unit where there could be
direct sunlight shining on it. Also, this location must be
suitable for piping and drainage, and be away from doors or
windows.
Routing Of Piping
Remove the screw holding the front panel.
The refrigerant piping can be routed to the unit in a
number of ways (left or right from the back of the unit), by
using the cut-out holes on the casing of the unit (see figure).
Bend the pipes carefully to the required position in order to
aligned it with the holes. For the right hand and rear side
out, hold the bottom of the piping and then position it to the
required direction (see figure). The condensation drain hose
can be taped to the pipes.
Wrong
Wrong
Wrong
Correct
Drain
Water Drainage
1
2
3
4
5
Piping Routing
Right & Rear Side Routing
Screw position in the wall
Ø 65.0 mm Hole in the wall
Maintenance &
Servicing Space
Air Flow
Direction
Higher Than
Eye Level
50.0 mm
Drain hose
Fix with vinyl tape
Unit piping
1. Hook the unit onto the installation plate.
50.0 mm
Screw position in the wall
72.0
Centre Line
Ø 65.0 mm Hole in the wall
1-5
REFRIGERANT PIPING
Piping Length & Elevation
If the pipe is too long, both capacity and reliability of the unit will drop. As the number of bends increases, resistance to the
flow of refrigerant system increases, thus lowering cooling capacity. As a result, the compressor may become defective.
Always choose the shortest path and follow the recommendations as tabulated below.
Individual indoor unit can have a maximum length of 12m (39.4ft) to 15m (49.2ft), maximum elevation of 5m (16.4ft) to 8m
(26.3ft) and maximum number of bends of 10, however, total pipe length must not exceed 60 m (196.8ft).
Remark: The refrigerant pre-charged in the outdoor unit is for piping length up to 60 m (196.8ft).
Coupling Model WMX10 WMX15 WMX20
Max. Length, L (m / ft) 12 / 39.4 12 / 39.4 15 / 49.2
L
1
+ L
2
+ L
3
+ L
4
(Total 60 m / 196.8 ft maximum)
Max. Elevation, H (m / ft) 5 / 16.4 5 / 16.4 8 / 26.2
Max. Number of Bends 10 10 10
Liquid Pipe Size 1/4" 1/4" 1/4"
Gas Pipe Size 3/8" 1/2" 5/8"
L4
L3
L2
L1
OUTDOOR UNIT
INDOOR UNIT
VERTICAL
HEIGHT
DIFFERENCE
MAX. H
1-6
English
Ø Tube, D A (mm)
Inch mm Imperial Rigid
1/4" 6.35 1.3 0.7
3/8" 9.52 1.6 1.0
1/2" 12.70 1.9 1.3
5/8" 15.88 2.2 1.7
3/4" 19.05 2.5 2.0
Piping Works
• Do not use contaminated or damaged copper tubing. Do
not remove plastic, rubber plugs and brass nuts from the
valves, fittings, tubings and coils until you are ready to
connect suction or liquid line into valves or fittings.
• If any brazing work is required, ensure that the nitrogen
gas is passed through coil and joints while the brazing
work is being done. This will eliminate soot formation
on the inside walls of the copper tubings.
• Cut the connection pipe with a pipe cutter.
• Remove burrs from cut edges of the pipes with remover.
Hold the end of the pipe downwards to prevent metal
chips from entering the pipe.
• Insert the flare nuts, mounted on the connection parts of
both the indoor unit and outdoor unit onto the copper
pipes.
• Flare the pipe with extra length above the flaring tool as
shown in the table below.
• The flared edge must be even and not cracked or
scratched.
Piping Connection To The Units
• The outdoor unit is equipped with four sets of flare joints.
Refer to table below for flare joint size and location.
• In the case where the gas pipe from the indoor unit does
not match the outdoor flare joints, four different flare
joint connectors are provided. The connector should be
connected as shown in figure.
• Align the center of the piping and tighten the flare nut
sufficiently with fingers.
• Finally, tighten the flare nut with the torque wrench until
the wrench clicks.
Cutting copper tube
1/4t
Remove burr Indoor
Position Liquid Pipe Size Gas Pipe Size
MSV25A MSV35A
A 1/4" 3/8" 3/8"
B 1/4" 3/8" 3/8"
C 1/4" 1/2" 1/2"
D 1/4" 1/2" 5/8"
No. Flare Joint Connectors
1 5/8" to 1/2" Connectors
2 3/8" to 1/2" Connectors
3 1/2" to 3/8" Connectors
4 1/2" to 5/8" Connectors
FLARE JOINT CONNECTOR
FLARE TUBE
INDOOR PIPING
FLARE NUT
SPANNER
TORQUE WRENCH
Pipe Size mm / (in) Torque Nm /(ft - Ib)
6.35 (1/4) 18 (13.3)
9.53 (3/8) 42 (31.0)
12.70 (1/2) 55 (40.6)
15.88 (5/8) 65 (48.0)
19.05 (3/4) 78 (57.6)
Copper tube
Swaging block
PIPE CONNECTION
INDOOR UNIT D
INDOOR UNIT C
INDOOR UNIT B
INDOOR UNIT A
1-7
ELECTRICAL WIRING CONNECTION
Cooling Unit
IMPORTANT : The figures shown in the table are for information purpose only. They should be checked and selected to
comply with the local/national codes of regulations. This is also to the type of installation and conductors
used.
INDOOR UNIT D
TERMINAL BLOCK
INDOOR UNIT C
TERMINAL BLOCK
INDOOR UNIT B
TERMINAL BLOCK
INDOOR UNIT A
TERMINAL BLOCK
1
2
3
N
L
1
2
3
N
L
1
2
3
N
L
1
2
3
N
L
N
L
3
N
L
3
N
L
3
N
L
3
N
L
D
C
B
A
POWER
SUPPLY
• All wires must be firmly connected.
• All wires must not touch the refrigerant piping, compres-
sor or any moving parts of the fan motor.
• The connecting wires between the indoor unit and the
outdoor unit must be clamped on the wire clamps and
the cable tie (push releasable) at the indoor unit and out-
door unit respectively as shown in the figures.
• The power supply cord must be equivalent to H05RN-F
(245IEC57) which is the minimum requirement.
MAIN CONTROL BOARD EARTH WIRE
FAN EARTH WIRE
POWER SUPPLY
CABLE
CABLE TIE
(PUSH RELEASABLE)
INTERCONNECTION
CABLE
There must be a double pole switch with a
minimum 3 mm contact gap and fuse/
circuit breaker as recommended in the
fixed installation circuit.
1-8
English
Model WMX10/15 WMX20
Voltage range 220-240V/1Ph/50Hz +
!
Power supply cable size*mm
2
3.0 4.0
Number of wires 33
Recommended time delay fuse for O/D unit 30
Indoor coupling models WMX10/15/20G
Interconnection cable size mm
2
1.5
Number of wires 4
AMPERE LIMIT CHANGE METHOD
WARNING !
Do not attemp to adjust the “Current Limit Switch” yourself. If there is a need to meet HDB requirement or local authorities,
kindly contact our local authorized dealers.
Wire Clamp
Interconnection
Cable
Power Supply
Cable
• The table above shows the electrical wire sizing for different connection cables. If the length of the cable is more than 2m
(6.65ft), use cable with bigger size.
• The figures shown in the table are for information purpose only. They should be checked and selected to comply with the
local/national codes of regulations. This is also to the type of installation and conductors used.
1-9
Current Limit Switch Setting
• The current limit requirement set by certain countries can be activated by the “Current Limit Switch”, placed at the
outdoor unit p.c.board, as shown on the illustration.
• Before adjusting the “Current Limit Switch”, be sure to turn off the main power supply. Wait until the LED light on the
p.c.board is turned off then only is safe to adjust the switch.
• The current limit settings on the switch are shown on the table below.
Current limit Switch Position
Current Limit
MSV25A MSV35A
No change
11 A
(Default Setting)
8.5 A
17 A
23 A
(Default Setting)
11 A
17 A
123
ON
123
ON
123
ON
123
ON
123
ON
1-10
English
➝
VACUUMING AND CHARGING
Purging the piping and the indoor unit
Except for the outdoor unit which is pre-charged with
refrigerant R22, the indoor unit and the refrigerant connection
pipes must be air-purged because the air containing moisture
that remains in the refrigerant cycle may cause malfunction
of the compressor.
Service Port
Outdoor Unit
3 Ways Valve
Flare Unit
Refrigerant Piping
Charge operation
This operation must be done by using a cylinder and a pre-
cise weighing machine. The additional charge is topped-
up into the outdoor unit using the suction valve via the ser-
vice port.
• Remove the service port cap.
• Connect the low pressure side of the charging gauge to
the suction service port center of the cylinder tank and
close the high pressure side of the gauge. Purge the air
from the service hose.
• Start the air conditioner unit.
• Open the cylinder and low pressure charging valve.
• When the required refrigerant quantity is pumped into
the unit, close the low pressure side and the cylinder
valve.
• Disconnect the service hose from service port. Put back
the service port cap.
Allen Key
Open
Open
Suction
Valve
Discharge
Valve
Indoor Unit
Outdoor Unit
Liquid side
Gas side
Check
Valve
Close
Hi
Low
Suction
Valve
Discharge
Valve
Indoor Unit
Outdoor Unit
Liquid side
Gas side
Vacuum
pump
Open
Close
Close
Close
Hi
Low
Make sure all pipes are connected securely to the outdoor
and indoor valves.
Remove the caps from the flare valves and the service ports
(or ball valves). Take note that there are a total of four
service ports for MSV25A and two service ports for
MSV35A.
➝
Connect the centre of the charging gauge to the vacuum
pump.
➝
Starting from the bottom 3-
way valve (labeled A),
connect the charging gauge
to the 3-way valve’s service
port. (There are a total of
four 3-way valves).
➝
➝
Connect the charging gauge
to the suction (gas side) ball
valve’s service port.
Start the vacuum pump. Evacuate for approximately 30
minutes. The evacuation time varies with different vacuum
pump capacity. Confirm that the charging gauge needle has
moved towards -760mmHg.
➝
Proceed to the next 3-way
valve and repeat the step
above for the rest of the
3-way valves.
➝
(MSV25A) (MSV35A)
Caution
If the gauge needle does not move towards -760mmHg,
be sure to check for gas leaks (using the refrigerant
detector) at flare type connection of the indoor and
outdoor unit and repair the leak before proceeding to
the next step.
Close the valve of the charging gauge and stop the vacuum
pump.
Open the suction valve (3-
way) and liquid valve (2-
way) in anti-clockwise
direction with 4mm key for
hexagon sacked screw.
➝
➝
Open the suction and liquid
ball valves in anti-clockwise
direction with pliers.
➝
Additional charge
The refrigerant is pre-charged in the outdoor unit for maximum piping length. Therefore, no additional charge is required for
additional piping length.
➝
➝
➝
1-11
INDICATOR LIGHTS
IR signal receiver
When an infrared remote control operating signal has been transmitted, the signal receiver on the indoor unit will make
a <beep> sound to confirm acceptance of the signal transmission. The table shows the LED indicator lights for the
indoor air conditioner unit under normal operation and fault conditions. The LED indicator lights are located at the
bottom right side of the air conditioner unit for WMX-F series and at the middle of the air conditioner unit for WMX-
G series.
LED Indicator Lights : Normal Operation And Fault Conditions For Cooling Unit
Action
–
–
–
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Operation / Fault Indication
Timer on.
Sleep mode on.
Dry mode.
Compressor overload protection.
Indoor temperature sensors contact loose / short.
Outdoor temperature & current sensors contact loose / short.
Gas leak / compressor overheat.
Communication error between indoor and outdoor.
Inverter error / PFC error.
Outdoor total current trip / DC peak.
Indoor fan feedback error.
LED Indicator Lights
Dry mode
Power ON
Timer
LED Indicator Lights for Cooling Unit
Blinking
ON or OFF
ON
Sleep mode
Inverter Cooling Unit (WMX-F)
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English
Inverter Cooling Unit (WMX-G) LED Indicator Lights for Cooling / Heat Pump Unit
Sleep Mode
LED Indicator Lights : Normal Operationg and Fault Conditions for Cooling / Heat Pump Unit
LED indicator lights
IR Receiver
Cool Timer Ionizer
Normal Operation / Fault Indication Action
Cool mode –
Sleep mode on –
Timer on –
Ionizer on –
Defrost operation –
Indoor temperature sensor loose / short Call your dealer
Coil temperature sensor loose / short Call your dealer
Outdoor temperature sensor loose / short Call your dealer
Compressor overload protection Call your dealer
IPM / PFC error Call your dealer
Outdoor total current trip / DC peak Call your dealer
Compressor overheat / Gas leak Call your dealer
Indoor fan feedback error Call your dealer
Communication error between indoor
and outdoor
Call your dealer
Green
ON
ON or OFF Blinking
Sleep
Mode
Cool Timer Ionizer
Green/ Red
Green/ Red
Green/ Red
Red
Red
Green
Yellow
Green
Green
Green
Green
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AIR CONDITIONER UNIT OPERATION
Dry mode
• When the air humidity is high, the unit can operate in dry
mode. Press <MODE> button and choose <DRY>.
• If the room temperature is 2°C/35.6°F higher than the set
temperature, the air conditioner will operate under cooling
mode until it reaches within the 2°C/35.6°F range of
difference compared to the set temperature before it
converts to dry mode.
• If the room temperature is within the 2°C/35.6°F range of
difference compared to the set temperature, it will
directly operate under dry mode.
• The indoor fan will operate at super low speed under dry
mode.
Horizontal Air Flow Control
• For more effective air circulation, you can manually ad-
just the air discharge grille to the left or right.
• During cool mode operation and dry mode operation, do
not direct the air discharge louver downwards for too long.
If operating continues in this way, condensation may oc-
cur on the louver, thus resulting in drippings.
Frost prevention
• When the air filter is dirty, the evaporating temperature
will decrease and eventually cause frosting.
• When this happens, the compressor will reduce its running
speed to prevent freezing. If the coil temperature is still
very low, the compressor will stop.
Fan speed and rated cooling capacity
• The rated cooling capacity is provided at the maximum
fan speed.
• The cooling capacity is lower when the unit is operating at
MEDIUM and LOW fan speed.
Turbo function
• If higher cooling or heating is required during operation,
press "Turbo" button on the remote control to increase the
cooling or heating capacity to maximum.
• This function will operate for 15 minutes before it resume
to the actual setting.
• The fan noise may be higher if the unit operates in "Turbo"
mode.
OPERATING RANGE
Cooling Unit
Temperature Ts °C / °F Th °C / °F
Minimum indoor temperature 19.0 / 66.2 14.0 / 57.2
Maximum indoor temperature 32.0 / 89.6 23.0 / 73.4
Minimum outdoor temperature 19.4 / 66.92 -
Maximum outdoor temperature 46.0 / 114.8 -
Ts: Dry bulb temperature.
Th: Wet bulb temperature.
Horizontal
Cooling
Dry
25˚C / 77˚F
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