INSTALLATION MANUAL
Model: IM-MSV-0903-ACSON
INVERTER
AC INVERTER MULTI SPLIT
TYPE AIR CONDITIONER
Indoor Unit (WMX-F)
OUTLINE AND DIMENSIONS
A
C
TOP VIEW
B
Dimension
10 / 15 F / FR
20 F / FR
A
815
(32,1)
1060
(41,7)
(11,4)
(12,2)
Indoor Unit (WMX-G)
FRONT VIEW
A
GF
H
E
B
I
B
291
310
J
C
181
(7,1)
200
(7,9)
FOR PIPE HOLE POSITION
IN THE WALL
HOLE O 65.0mm
D
719
(28,3)
912
(35,9)
K
L
E
278
(10,9)
294
(11,6)
F
47
(1,9)
99
(3,9)
A
D
CENTER
LINE
INSTALLATION
PLATE
G
47
(0,5)
(1,9)
51
(0,3)
(2,0)
H
12
8
SIDE VIEW
FOR PIPE HOLE POSITION
IN THE WALL
HOLE O 65.0mm
M
I
32
(1,3)
48
(1,9)
I
J
35
(1,4)
43
(1,7)
ON
All dimensions are in mm/ (in)
N
M
L
K
118
302
(11,9)
354
(13,9)
342
(13,5)
403
(15,9)
100
(3,9)
160
(6,3)
(4,6)
138
(5,4)
O
172
(6,8)
160
(6,3)
Dimension
10 / 15 G / GR
A
899
(35,4)
B
260
(10,2)
B
H
E
I
C
198
(7,8)
G
J
D
590
(23,2)
TOP VIEW
FRONT VIEW
D
K
L
E
246
(9,7)
F
185
(7,3)
G
124
(4,9)
i
C
SIDE VIEW
F
O
N
I
M
All dimensions are in mm/ (in)
H
(0,3)
I
56
8
(2,2)
(2,0)
50
K
J
495
419
(19,5)
(16,5)
M
L
128
50
(5,1)
(2,0)
O
N
132
(5,2)
Indoor Unit (WMX-G)
A
B
B
MH
I
J
TOP VIEW
FRONT VIEW
A
DFG
ON
I
K
L
INSTALLATION
PLATE
M
C
SIDE VIEW
All dimensions are in mm/ (in)
Dimension
20 G / GR
A
1060
(41,7)
B
310
(12,2)
C
220
(8,6)
D
912
(35,9)
E
294
(11,6)
F
99
(3,9)
G
51
(2,0)
H
8
(0,3)
I
48
(1,9)
J
43
(1,7)
K
354
(13,9)
L
403
(15,9)
M
160
(6,3)
N
138
(5,4)
O
160
(6,3)
ii
Outdoor Unit (MSV25A)
J
Dimension
A
F
ED
C
E
G
K
L
A
925
(36,4)
B
839
(33,0)
B
HII
N
M
C
408
(16,0)
D
378
(14,8)
E
15
(0,6)
F
38
(1,5)
O
QPR
WWWWWWW
STU
G
39
(1,5)
H
590
(23,2)
All dimensions are in mm/ (in)
V
I
125
(4,9)
J
356
(14,0)
K
296
(11,6)
L
318
(12,5)
MSV25A
M
647
(25,4)
(24,8)
Outdoor Unit (MSV35A)
EDE
J
N
630
O
330
(13,0)
IL
P
83
(3,2)
A
BCC
Q
160
(6,3)
R
87
(3,4)
K
S
428
(16,8)
G
F
G
T
141
(5,5)
U
47
(1,8)
All dimensions are in mm/ (in)
M
OOOOOOO
V
216
(8,5)
W
42
(1,6)
Dimension
MSV35A
A
1028
(40,4)
H
B
746
(29,4)
C
141
(5,5)
D
448
(17,6)
E
20
(0,8)
F
488
(19,2)
G
44
(1,7)
iii
H
26
(1,0)
I
390
(15,3)
N
J
408
(16,0)
K
852
(33,5)
L
399
(15,7)
M
311
(12,2)
N
107
(4,2)
O
55
(2,2)
Sharp edges and coil surfaces are potential locations which may cause injury
E
.
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la r
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tre ces centres. Ceci
p
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à
à
locali. Questa disposizione
è
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dell
U.E.
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ó
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fico
i
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! Caution
hazards. Avoid from being in contact with these places.
NOTICE
This product is subjected to Waste of Electrical and Electronic Equipment Regulations (WEE
Regulations). The waste product shall be separately collected by specific collection and treatment centre
lease refer to local authorithy for these centres. This is only applicable to European Union countries
Ce produit est soumis
est uniquement applicable aux pays de l'Union Euro
Dieses Produkt unterliegt den Bestimmungen zur Entsorgung von elektrischen und elektronische
er
ll bei Ihrer
ischen Union
Questo prodottoè soggetto alle disposizioni RAEE (Rifiuti di apparecchiature elettriche ed elettroniche)
de colecc
solamente aplicable a los pases de la Un
Процес
отходо
правил
тилизациианногопродуктарегулируетсяправиламип
Europea
enne
ctrico y Electr
(WEEE Regulations).
Европейског
lectriques e
valida solamente i paes
ico en materia d
тилизаци
т
iv
INSTALLATION MANUAL
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.
INVERTER MULTI SPLIT TYPE AIR CONDITIONER
MODEL
OUTDOOR UNIT
MSV25A / AMSV025A
MSV35A / AMSV035A
English
INDOOR UNIT
WMX10F / AWMX010F
WMX15F / AWMX015F
WMX20F / AWMX020F
WMX10G / AWMX010G
WMX15G / AWMX015G
WMX20G / AWMX020G
Part No.: A08019020770
IM-MSV-0903 (1)-Acson
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
SAFETY PRECAUTIONS
Before installing the air conditioner unit, please read the following safety precautions carefully.
! 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.
! 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.
1-1
INSTALLATION DIAGRAM
Indoor Unit
Air Intake
Grille
INDOOR UNIT
Air Filter
Indicator Light
Drain
House
Signal Receiver
Front Frame
Back Housing
ON/OFF Switch
English
Return Air
Air Discharge Nozzle
Outdoor Unit
OUTDOOR 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.
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
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.
1-2
INSTALLATION OF OUTDOOR UNIT
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.
Installation Clearance
Dimension A
Minimum 300 1000
Distance (mm) (11.8) (39.4)
CD
RETURN AIR
OBSTACLE
OBSTACLE
SERVICE SPACE
B C
300
(11.8)
D
500
(19.7)
AB
OBSTACLE
RETURN AIR
AIR DISCHARGE
OBSTACLE
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.
PLEASE
REMOVE
ACCESS PANEL
& PLASTIC
VALVE COVER
PLATE WHEN
CONNECTING
THE PIPING
AND
CONNECTING
CORD.
PLEASE
REMOVE
SERVICE
PANEL
PUSH & PULL UP
1-3
INSTALLATION OF THE INDOOR UNIT
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.
Air Flow
Direction
Maintenance &
Servicing Space
50.0 mm
50.0 mm
Higher Than
Eye Level
Routing Of Piping
Remove the screw holding the front panel.
Piping Routing
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 diameter with a cone drill, slightly lower on the outside wall (see
figure).
Screw position in the wall
Centre Line
72.0
Ø 65.0 mm Hole in the wall
Screw position in the wall
Ø 65.0 mm Hole in the wall
English
1
2
3
4
5
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.
Right & Rear Side Routing
Unit piping
Drain hose
Fix with vinyl tape
Hole With Cone Drill
Indoor Side
Outdoor Side
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.
1. Hook the unit onto the installation plate.
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.
Water Drainage
1-4
Correct
Water
Leaking
Wrong
Water
Leaking
Wrong
Water
Leaking
Wrong
End
Dipped
Into
Water
Drain
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.
Coupling Model WMX10 WMX15 WMX20
Max. Length, L (m / ft) 12 / 39.4 12 / 39.4 15 / 49.2
L1 + L2 + L3 + L
4
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"
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).
(Total 60 m / 196.8 ft maximum)
INDOOR UNIT
VERTICAL
HEIGHT
DIFFERENCE
MAX. H
L4
L3
L2
L1
OUTDOOR UNIT
1-5
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.
Copper tube
Swaging block
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
PIPE CONNECTION
Cutting copper tube
1/4t
Remove burr Indoor
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.
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
English
INDOOR UNIT D
INDOOR UNIT C
INDOOR UNIT B
INDOOR UNIT A
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"
• 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.
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)
FLARE JOINT CONNECTOR
INDOOR PIPING
SPANNER
TORQUE WRENCH
FLARE TUBE
FLARE NUT
1-6
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.
1
2
INDOOR UNIT D
TERMINAL BLOCK
INDOOR UNIT C
TERMINAL BLOCK
INDOOR UNIT B
TERMINAL BLOCK
INDOOR UNIT A
TERMINAL BLOCK
3
N
L
POWER
SUPPLY
1
2
3
N
L
1
2
3
N
L
1
2
3
N
L
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.
N
L
3
D
N
L
3
C
N
L
3
B
N
L
3
A
N
L
• 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 outdoor unit respectively as shown in the figures.
• The power supply cord must be equivalent to H05RN-F
(245IEC57) which is the minimum requirement.
1-7
MAIN CONTROL BOARD EARTH WIRE
FAN EARTH WIRE
INTERCONNECTION
CABLE
POWER SUPPLY
CABLE
CABLE TIE
(PUSH RELEASABLE)
Wire Clamp
Interconnection
Cable
Power Supply
Cable
English
Voltage range 220-240V/1Ph/50Hz +
Power supply cable size*mm
Model WMX10/15 WMX20
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
• 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.
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.
1-8
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
ON
123
ON
123
ON
123
No change
ON
123
ON
123
Current Limit
MSV25A MSV35A
11 A
(Default Setting)
(Default Setting)
8.5 A
17 A
23 A
11 A
17 A
1-9
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.
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.
(MSV25A) (MSV35A)
➝
Starting from the bottom 3way valve (labeled A),
connect the charging gauge
to the 3-way valve’s service
port. (There are a total of
four 3-way valves).
➝
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.
➝
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.
➝
➝
➝
Connect the charging gauge
to the suction (gas side) ball
valve’s service port.
➝
➝
➝
Allen Key
Service Port
Indoor Unit
Open
Vacuum
pump
Low
Flare Unit
Outdoor Unit
3 Ways Valve
Liquid side
Gas side
Hi
Close
Refrigerant Piping
Valve
Suction
Valve
Outdoor Unit
Close
Close
Discharge
Charge operation
This operation must be done by using a cylinder and a precise weighing machine. The additional charge is toppedup into the outdoor unit using the suction valve via the service 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.
Indoor Unit
Liquid side
Discharge
Valve
Outdoor Unit
Open
English
Close the valve of the charging gauge and stop the vacuum
pump.
➝
Open the suction valve (3way) and liquid valve (2way) in anti-clockwise
Open the suction and liquid
ball valves in anti-clockwise
direction with pliers.
➝
Check
Valve
Low
Gas side
Hi
Close
Suction
Valve
Open
direction with 4mm key for
hexagon sacked screw.
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.
1-10
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 WMXG series.
Inverter Cooling Unit (WMX-F)
LED Indicator Lights
LED Indicator Lights : Normal Operation And Fault Conditions For Cooling Unit
Timer on.
Sleep mode on.
LED Indicator Lights for Cooling Unit
Timer
Sleep mode
Operation / Fault Indication
Power ON
Dry mode
Action
–
–
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.
ON or OFF
–
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Blinking
1-11
Inverter Cooling Unit (WMX-G) LED Indicator Lights for Cooling / Heat Pump Unit
English
Sleep
Mode
Red
Sleep Mode
IR Receiver
LED indicator lights
Cool Timer Ionizer
LED Indicator Lights : Normal Operationg and Fault Conditions for Cooling / Heat Pump Unit
Normal Operation / Fault Indication Action
Cool Timer Ionizer
Green
Green/ Red
Green/ Red
Green/ Red
Red
Yellow
Green
Cool mode –
Sleep mode on –
Timer on –
Ionizer on –
Defrost operation –
Green
Green
Green
Green
ON
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
Call your dealer
and outdoor
ON or OFF Blinking
1-12
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 adjust 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 occur on the louver, thus resulting in drippings.
Frost prevention
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.
Horizontal
Dry
Cooling
25˚C / 77˚F
• 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.
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.
1-13
ELECTROSTATIC FILTER
DUAL ACTION ELECTROSTATIC AIR PURIFYING
AND DEODORIZING FILTER MEDIA AND FILTER FRAME
ACTION 1ELECTROSTATIC AIR PURIFYING FILTER
Removes microscopic dust, smoke and small invisible
particles to keep the room air clean with pre-charged
electrostatic polypropylene filter.
HOW TO INSTALL
Open the
front frame
grille.
Slide out the original
filters.
ACTION 2DEODORIZING FILTER
English
Removes unwanted smells and odors in the air and keeps
the room air fresh with activated carbon filter.
Insert the dual action
electrostatic and
deodorizing filters
into the slot.
Slide back the original
filter.
! CAUTION
1. The electrostatic air purifying and deodorizing filter
should be replaced once every 6 months or when the
filter changes color to brownish, whichever is sooner.
2. Used dusty filters should be disposed and shouldn't be
reused, even if it has been cleaned and washed.
3. The filter is a consumable part which you can purchase
from your air conditioner dealer.
4. Use the new filter immediately once it has been taken
out from its sealed packing. Do not unpack the new
filter too early before it is actually used as this may
decrease its deodorizing effect.
! WARNING
• Disconnect from the main power supply before servicing the air conditioner unit.
• DO NOT pull out the power cord when the power is ON. This may cause serious electrical shocks which may result
in fire hazards.
AUTO RANDOM RE-START FUNCTION
If there is a power cut when the unit is operating, it will automatically resume the same operating mode when the power
is restored.
! CAUTION
Before turning off the power supply, set the remote controller's ON/OFF switch to the "OFF" position to prevent the
nuisance tripping of the unit.
If this is not done, the unit's fans will start turning automatically when power resumes, posing a hazard to service
personnel or the user.
1-14
SERVICE AND MAINTENANCE
Service Parts
Indoor air filter
Indoor unit
Maintenance Procedures
1. Remove any dust adhering to the filter by using a vacuum cleaner or
wash in lukewarm water (below 40°C) with a neutral cleaning detergent.
2. Rinse the filter well and dry before placing it back onto the unit.
3. Do not use gasoline, volatile substances or chemicals to clean the filter.
1. Clean any dirt or dust on the grille or panel by wiping it off with a soft
cloth soaked in lukewarm water (below 40°C) and a neutral
detergent solution.
2. Do not use gasoline, volatile substances or chemicals to clean the
indoor unit.
Period
At least once
every 2 weeks.
More frequently if
necessary.
At least once
every 2 weeks.
More frequently if
necessary.
1 Off the unit.
2 Unscrew the air discharge housing.
3 Flip open the air discharge housing.
4 Clean the blower.
5 Close the air discharge housing and tighten it with screw.
! CAUTION
Do not operate any heating apparatus too close to the air conditioner unit. This may cause the plastic panel to melt
or deform as a result of the excessive heat.
WHEN THE UNIT IS NOT USED FOR AN EXTENDED PERIOD OF TIME
Operate the unit for 2 hours
with the following setting.
Operating mode : cool
Temperature : 30°C
Remove the power plug.
If you are using an independent
electric circuit for your unit,
cut off the circuit.
Remove the batteries in the
remote control.
1-15
TROUBLESHOOTING
If there is any malfunction of the air conditioner unit detected, please switch off the main power supply immediately
before proceeding with the following troubleshooting procedures as safety precautions.
The followings are some common fault conditions and simple troubleshooting tips. If encounter any faulty conditions which
are not listed, please contact your nearest local dealer or service maintenance. Do not attemp to troubleshoot the unit yourself.
English
No.
1.
The air conditioner unit will not start straight
away after a power failure or restart of unit.
The compressor does not operate 3 minutes after
2.
the air conditioner unit is started.
The air flow is too slow or room cannot be
3.
cooled sufficiently.
4.
Discharge air flow has bad odour.
Condensation on the front air grille of the indoor
5.
unit.
Water flowing out from the air conditioner unit.
6.
Hissing air flow sound from the air conditioner
7.
unit during operation.
Fault Conditions
Possible Causes / Corrective Actions
• The air conditioner unit has a 3 minutes restart protection.
Please wait for the unit to restart by leaving the main power
on.
• Protection against frequent starting.
• Wait for 3 or 4 minutes for the compressor to start operating
by itself.
• The air filter is dirty.
• The doors or windows are opened.
• The air suction and discharge of both indoor and outdoor units
are clogged or blocked.
• The regulated temperature or temperature setting is not high
enough.
• Odour may be caused by cigarrettes, smoke particles, perfume
and others, which might have adhered onto the coil.
• Contact the nearest dealer for coil cleaning.
• This is caused by air humidity after an extended period of
operation.
• The set temperature is too low, increase the temperature setting
and operate the unit at high fan speed.
• Switch off unit and call dealer. This might be due to tilted
installation.
• Refrigerant fluid flowing into the evaporator coil.
8.
The indoor unit’s LED indication keeps blinking.
9.
The outdoor unit will not operate and the indoor
unit’s LED indication does not blink.
• Check the fault indication listed under section INDICATOR
LIGHTS.
• If LED display indicates defrost operation, ignore it. This
shows that the outdoor unit is defrosting the ice at the outdoor
unit.
• For other LED display, follow the COMPRESSOR STOPPED
TROUBLESHOOTING INSTRUCTIONS at next section.
• Power failure or fuse needs to be replaced. Check power
supply.
• The main power plug is disconnected or the circuit breaking
is turned off.
• It is possible that the delay timer has been set incorrectly.
• If the problem persist after all these verifications, follow the
COMPRESSOR STOPPED TROUBLESHOOTING
INSTRUCTIONS at next section.
1-16
10
Compressor Stopped Troubleshooting Instructions
Keep the Main Power Supply ON
Open up the Outdoor Unit’s Top Panel or Service Panel
Notice the Yellow LED on the P.C. Board
➝➝➝
DO NOT TOUCH ANY OF THE
➝
WIRES INSIDE THE UNIT!
Count the number of blinks
➝
indicated by the LED
Blink Fault Indication Corrective Action
1 Outdoor Ambient Sensor Error Check ambient sensor wire and connection
2 Outdoor Coil Sensor Error Check coil sensor wire and connection
3 Outdoor Discharge Sensor Error / Check discharge sensor wire and connection /
Compressor Overheat Indication Not enough refrigerant / Indoor overload / Outdoor fan
not functioning
4 DC Compressor Feedback Call local dealer
5 Communication Error Check Interconnection communication wire
6 Over Current Call local dealer
7 No Load Check compressor wire and connection
8 Over / Under Voltage Check power supply
9 DC Compressor Start Failure Call local dealer
10 Cooling Overload Check whether outdoor unit is blocked or not
11 Defrost Wait till defrost is over then restart
12 IPM Protection Check IPM
13 EEPROM Read Error Change EEPROM
14 EEPROM Write Error Change EEPROM
15 DC Fan Motor Feedback Error Check fan motor wire connection
16 AC Peak Current Error Call local dealer
17 Outdoor Suction Sensor Error Check suction sensor wire and connection
19 DC Compressor Speed Control Error Call local dealer
21 Outdoor Suction A Sensor Error Check A suction sensor wire and connection
22 Outdoor Suction B Sensor Error Check B suction sensor wire and connection
23 Outdoor Suction C Sensor Error Check C suction sensor wire and connection
24 Outdoor Suction D Sensor Error Check D suction sensor wire and connection
31 Indoor A Communication Error Check Interconnection communication wire to Indoor A
32 Indoor B Communication Error Check Interconnection communication wire to Indoor B
33 Indoor C Communication Error Check Interconnection communication wire to Indoor C
34 Indoor D Communication Error Check Interconnection communication wire to Indoor D
* If the problem still persist, contact your local dealer straight away.
1-17
11
If the air conditioner unit has no faulty indications and the compressor is running at normal mode, the outdoor P.C.
Board’s LED indication will blink at a slower paste. The table below shows the significant meaning of different
running mode and limitation for this air conditioner unit.
One must not attemp to see the LED indication blinking unless instructed to do so.
Normal Running Mode Condition
Blinks Blinking Indication
1 Normal Running, with no limitation
2 Voltage Limit
3 Cooling unit : Outdoor Coil Temperature Limit
4 Total Current Limit
5 Discharge Temperature Limit
6 Cooling unit : Indoor Coil Temperature Limit
7 Indoor Fan Control
8 Outdoor Frequency Adjustment
English
1-18
MEMO
1-19
• In the event that there is any conflict in the interpretation of this manual and any translation of the same in any language,
the English version of this manual shall prevail.
• The manufacturer reserves the right to revise any of the specification and design contain herein at any time without prior
notification.
• En cas de désaccord sur l’interprétation de ce manuel ou une de ses traductions, la version anglaise fera autorité.
• Le fabriquant se réserve le droit de modifier à tout moment et sans préavis la conception et les caractéristiques techniques
des appareils présentés dans ce manuel.
• Im Falle einer widersprüchlichen Auslegung der vorliegenden Anleitung bzw. einer ihrer Übersetzungen gilt die Ausführung
in Englisch.
• Änderungen von Design und technischen Merkmalen der in dieser Anleitung beschriebenen Geräte bleiben dem Hersteller
jederzeit vorbehalten.
• Nel caso ci fossero conflitti nell’interpretazione di questo manuale o delle sue stesse traduzioni in altre lingue, la versione
in lingua inglese prevale.
• Il fabbricante mantiene il diritto di cambiare qualsiasi specificazione e disegno contenuti qui senza precedente notifica.
• En caso de conflicto en la interpretación de este manual, y en su traducción a cualquier idioma, prevalecerá la versión
inglesa.
• El fabricante se reserva el derecho a modificar cualquiera de las especificaciones y diseños contenidos en el presente
manual en cualquier momento y sin notificación previa.
• В случае противоречия перевода данного руководства с другими переводами одного и того же текста,
английский вариант рассматривается как приоритетный.
• Завод-изготовитель оставляет за собой право изменять характеристики и конструкцию в любое время
без предварительного уведомления.
OYL MANUFACTURING COMPANY SDN. BHD.
JALAN PENGAPIT 15/19, P.O. BOX 7072, 40702 SHAH ALAM, SELANGOR DARUL EHSAN, MALAYSIA.
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