AC INVERTER MULTI SPLIT TYPE AIR CONDITIONER - INSTALLATION MANUAL
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INSTALLATION MANUAL IM-MSV-0903-McQuay
Group: INVERTER
Part Number: A08019025535
Date: MARCH 2003
AC INVERTER MULTI SPLIT
TYPE AIR CONDITIONER
© 2003 McQuay InternationalOUTLINE AND DIMENSIONS
Indoor Unit (WMX-F)
A
C
TOP VIEW
B
FRONT VIEW SIDE VIEW
A
G D F
H
O
B
E
FOR PIPE HOLE POSITION
FOR PIPE HOLE POSITION IN THE WALL
IN THE WALL HOLE O 65.0mm
HOLE O 65.0mm
N
CENTER
LINE
I
I
M
J INSTALLATION
K PLATE
L All dimensions are in mm/ (in)
Dimension A B C D E F G H I J K L M N O
10 / 15 F / FR 815 291 181 719 278 47 47 12 32 35 302 342 100 118 172
(32,1) (11,4) (7,1) (28,3) (10,9) (1,9) (1,9) (0,5) (1,3) (1,4) (11,9) (13,5) (3,9) (4,6) (6,8)
20 F / FR 1060 310 200 912 294 99 51 8 48 43 354 403 160 138 160
(41,7) (12,2) (7,9) (35,9) (11,6) (3,9) (2,0) (0,3) (1,9) (1,7) (13,9) (15,9) (6,3) (5,4) (6,3)
Indoor Unit (WMX-G)
A
TOP VIEW C
B
FRONT VIEW SIDE VIEW
G D F
H
O
E
N
I
I
J K M
L
All dimensions are in mm/ (in)
Dimension A B C D E F G H I J K L M N O
10 / 15 G / GR 899 260 198 590 246 185 124 8 56 50 419 495 50 128 132
(35,4) (10,2) (7,8) (23,2) (9,7) (7,3) (4,9) (0,3) (2,2) (2,0) (16,5) (19,5) (2,0) (5,1) (5,2)
iIndoor Unit (WMX-G)
A
TOP VIEW C
B
FRONT VIEW SIDE VIEW
A
G D F
H
O
M
B
J M N
I
I
K INSTALLATION
PLATE
L
All dimensions are in mm/ (in)
Dimension A B C D E F G H I J K L M N O
20 G / GR 1060 310 220 912 294 99 51 8 48 43 354 403 160 138 160
(41,7) (12,2) (8,6) (35,9) (11,6) (3,9) (2,0) (0,3) (1,9) (1,7) (13,9) (15,9) (6,3) (5,4) (6,3)
iiOutdoor Unit (MSV25A)
A
All dimensions are in mm/ (in)
B
F
E
D
C
I H I
E
G
O
J K P Q R V
U
T
L
WWWWWWW
M
N
S
Dimension A B C D E F G H I J K L
925 839 408 378 15 38 39 590 125 356 296 318
(36,4) (33,0) (16,0) (14,8) (0,6) (1,5) (1,5) (23,2) (4,9) (14,0) (11,6) (12,5)
MSV25A M N O P Q R S T U V W
647 630 330 83 160 87 428 141 47 216 42
(25,4) (24,8) (13,0) (3,2) (6,3) (3,4) (16,8) (5,5) (1,8) (8,5) (1,6)
Outdoor Unit (MSV35A)
A
C B C All dimensions are in mm/ (in)
G
E
D
F
G
E
I L M
J
OO OO O O O
K
N
H
Dimension A B C D E F G H I J K L M N O
MSV35A 1028 746 141 448 20 488 44 26 390 408 852 399 311 107 55
(40,4) (29,4) (5,5) (17,6) (0,8) (19,2) (1,7) (1,0) (15,3) (16,0) (33,5) (15,7) (12,2) (4,2) (2,2)
iii! Caution
Sharp edges and coil surfaces are potential locations which may cause injury
hazards. Avoid from being in contact with these places.
NOTICE
This product is subjected to Waste of Electrical and Electronic Equipment Regulations (WEEE
Regulations). The waste product shall be separately collected by specific collection and treatment centre.
Please refer to local authorithy for these centres. This is only applicable to European Union countries.
Ce produit est soumis à la ré é é électriques et
é é ê é é
é éé é ître ces centres. Ceci
est uniquement applicable aux pays de l'Union Européenne.
Dieses Produkt unterliegt den Bestimmungen zur Entsorgung von elektrischen und elektronischen
Gerää ä
ätes
üll bei Ihrer ö ü ö
äändiges Abfall-Amt. Dieser
Hinweis gilt nur fü
f rL äischen Union.
Questo prodotto è soggetto alle disposizioni RAEE (Rifiuti di apparecchiature elettriche ed elettroniche).
à
à locali. Questa disposizione è valida solamente i paesi
dell’U.E.
éctrico y Electrónico en materia de
ñ á í
ífico
de colecció
solamente aplicable a los países de la Unión Europea.
Процесс утилизации данного продукта регулируется правилами по утилизации
отходов и (WEEE Regulations).
и
, . Эти
правила Европейского .
ivINSTALLATION MANUAL
English
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 / MMSV025A
MSV35A / MMSV035A
INDOOR UNIT
WMX10F / MWMX010F
WMX15F / MWMX015F
WMX20F / MWMX020F
WMX10G / MWMX010G
WMX15G / MWMX015G
WMX20G / MWMX020G
Part No.: A08019025535 IM-MSV-0903 (1)-McQuayCONTENTS
- Outline and Dimensions page i-iv - Vacuuming and Charging page 10
- Safety Precautions page 1 - Indicator Lights page 11
- Installation Diagram page 2 - Air Conditioner Unit Operation page 13
- Installation of Outdoor Unit page 3 - Operating Range page 13
- Installation of the Indoor Unit page 4 - Electrostatic filter page 14
- Refrigerant Piping page 5 - Auto Random Re-start Function page 14
- Electrical Wiring Connection page 7 - Service and Maintenance page 15
- Ampere Limit Change Method page 8 - 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.
1-1INSTALLATION DIAGRAM
Indoor Unit Air Filter
English
Front Frame
Air Intake Back Housing
Grille ON/OFF Switch
Indicator Light Drain
House
Signal Receiver
INDOOR UNIT
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.
1-2INSTALLATION 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 B C D
Minimum 300 1000 300 500
Distance (mm) (11.8) (39.4) (11.8) (19.7)
A B
C D
AIR DISCHARGE
RETURN AIR
RETURN AIR
SERVICE SPACE
OBSTACLE
OBSTACLE
OBSTACLE
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
PLEASE REMOVE
REMOVE SERVICE
ACCESS PANEL PANEL
& PLASTIC
VALVE COVER
PLATE WHEN
CONNECTING
THE PIPING
AND
CONNECTING
CORD.
PUSH & PULL UP
1-3INSTALLATION OF THE INDOOR UNIT
The indoor unit must be installed in such a way so as to Mounting Installation Plate
prevent short circuit of the cool discharged air with the hot Ensure that the wall is strong enough to withstand the weight
return air. Please follow the installation clearance shown in of the unit. Otherwise, it is necessary to reinforce the wall
English
the figure. Do not place the indoor unit where there could be with plates, beams or pillars.
direct sunlight shining on it. Also, this location must be Use the level gauge for horizontal mounting, and fix it with
suitable for piping and drainage, and be away from doors or 4 suitable screws.
windows. 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).
50.0 mm 50.0 mm
Screw position in the wall
Centre Line
72.0
Air Flow
Direction
Higher Than
Eye Level
Ø 65.0 mm Hole in the wall
Maintenance &
Servicing Space
Screw position in the wall
Routing Of Piping
Remove the screw holding the front panel.
Piping Routing
Ø 65.0 mm Hole in the wall
2 3 Hole With Cone Drill
1
4
5
Indoor Side Outdoor Side
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). Mount The Unit Onto The Installation Plate
Bend the pipes carefully to the required position in order to Hook the indoor unit onto the upper portion of the
aligned it with the holes. For the right hand and rear side installation plate (Engage the two hooks at the rear top of
out, hold the bottom of the piping and then position it to the the indoor unit with the upper edge of the installation plate).
required direction (see figure). The condensation drain hose Ensure that the hooks are properly seated on the
can be taped to the pipes. installation plate by moving it to the left and right.
Right & Rear Side Routing
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
Unit piping water to leak.
Drain hose Water Drainage
Fix with vinyl tape
End
Water Water Dipped
Water
Leaking Leaking Into
Leaking
Water
Drain
Correct Wrong Wrong Wrong
1-4REFRIGERANT 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 + L4 (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"
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).
VERTICAL
HEIGHT
DIFFERENCE
MAX. H
L4
L3
L2
INDOOR UNIT
L1
OUTDOOR UNIT
1-5Piping Works
• Do not use contaminated or damaged copper tubing. Do
not remove plastic, rubber plugs and brass nuts from the Cutting copper tube
valves, fittings, tubings and coils until you are ready to
English
connect suction or liquid line into valves or fittings. 1/4t
• 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 Remove burr Indoor
shown in the table below.
• The flared edge must be even and not cracked or
scratched.
Copper tube Piping Connection To The Units
Swaging block • 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
Ø Tube, D A (mm)
joint connectors are provided. The connector should be
Inch mm Imperial Rigid connected as shown in figure.
1/4" 6.35 1.3 0.7
No. Flare Joint Connectors
3/8" 9.52 1.6 1.0
1/2" 12.70 1.9 1.3 1 5/8" to 1/2" Connectors
5/8" 15.88 2.2 1.7 2 3/8" to 1/2" Connectors
3/4" 19.05 2.5 2.0
3 1/2" to 3/8" Connectors
PIPE CONNECTION 4 1/2" to 5/8" Connectors
• Align the center of the piping and tighten the flare nut
sufficiently with fingers.
• Finally, tighten the flare nut with the torque wrench until
INDOOR UNIT D
the wrench clicks.
Pipe Size mm / (in) Torque Nm /(ft - Ib)
INDOOR UNIT C 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)
INDOOR UNIT B 19.05 (3/4) 78 (57.6)
FLARE JOINT CONNECTOR FLARE TUBE
INDOOR UNIT A
INDOOR PIPING FLARE NUT
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" SPANNER TORQUE WRENCH
D 1/4" 1/2" 5/8"
1-6ELECTRICAL 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 3
TERMINAL BLOCK
N
L
SUPPLY
POWER
1
2
N
INDOOR UNIT C
3
TERMINAL BLOCK L
N
3
L
N D
L
3
1
N C
2
INDOOR UNIT B L
3
TERMINAL BLOCK 3
N
N B
L
L
3
1 N A
2 L
INDOOR UNIT A
TERMINAL BLOCK 3
N There must be a double pole switch with a
L minimum 3 mm contact gap and fuse/
circuit breaker as recommended in the
fixed installation circuit.
• All wires must be firmly connected.
• All wires must not touch the refrigerant piping, compres- MAIN CONTROL BOARD EARTH WIRE
FAN EARTH WIRE
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.
POWER SUPPLY
CABLE
CABLE TIE
(PUSH RELEASABLE)
INTERCONNECTION
CABLE
1-7Wire Clamp
Power Supply
English
Cable
Interconnection
Cable
Model WMX10/15 WMX20
Voltage range 220-240V/1Ph/50Hz + !
2
Power supply cable size* mm 3.0 4.0
Number of wires 3 3
Recommended time delay fuse for O/D unit 30
Indoor coupling models WMX10/15/20G
Interconnection cable size mm2 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.
1-8Current 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
Current limit Switch Position
MSV25A MSV35A
ON
11 A 23 A
No change
(Default Setting) (Default Setting)
1 2 3
ON ON
8.5 A 11 A
1 2 3 1 2 3
ON ON
17 A 17 A
1 2 3 1 2 3
1-9VACUUMING AND CHARGING
Purging the piping and the indoor unit
Except for the outdoor unit which is pre-charged with Refrigerant Piping
Allen Key Flare Unit
refrigerant R22, the indoor unit and the refrigerant connection
English
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 Service Port Outdoor Unit
and indoor valves. 3 Ways Valve
➝
Remove the caps from the flare valves and the service ports
(or ball valves). Take note that there are a total of four Indoor Unit Liquid side Outdoor Unit
service ports for MSV25A and two service ports for Discharge
Valve
MSV35A. Close
➝
Gas side
Connect the centre of the charging gauge to the vacuum
Suction
pump. Valve
Open Close
Vacuum
Hi
(MSV25A) (MSV35A) pump
➝
➝
Low
Close
Starting from the bottom 3- Connect the charging gauge
way valve (labeled A), to the suction (gas side) ball
connect the charging gauge valve’s service port.
to the 3-way valve’s service Charge operation
port. (There are a total of
four 3-way valves). 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-
Start the vacuum pump. Evacuate for approximately 30 vice port.
minutes. The evacuation time varies with different vacuum • Remove the service port cap.
pump capacity. Confirm that the charging gauge needle has • Connect the low pressure side of the charging gauge to
moved towards -760mmHg. 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.
Proceed to the next 3-way
• Start the air conditioner unit.
valve and repeat the step
• Open the cylinder and low pressure charging valve.
above for the rest of the
• When the required refrigerant quantity is pumped into
3-way valves.
➝
the unit, close the low pressure side and the cylinder
➝
valve.
Caution • Disconnect the service hose from service port. Put back
If the gauge needle does not move towards -760mmHg, the service port cap.
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
Indoor Unit Liquid side Outdoor Unit
the next step. Discharge
Valve
Open
➝
➝
Close the valve of the charging gauge and stop the vacuum Gas side
pump.
Suction
Check Valve
Valve Open
➝
➝
Hi
Low
Close
Open the suction valve (3- Open the suction and liquid
way) and liquid valve (2- ball valves in anti-clockwise
way) in anti-clockwise direction with pliers.
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.
1-10INDICATOR LIGHTS
IR signal receiver
When an infrared remote control operating signal has been transmitted, the signal receiver on the indoor unit will make
a 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.
Inverter Cooling Unit (WMX-F) LED Indicator Lights for Cooling Unit
Timer Power ON
Sleep mode Dry mode
LED Indicator Lights
LED Indicator Lights : Normal Operation And Fault Conditions For Cooling Unit
Operation / Fault Indication Action
Timer on. –
Sleep mode on. –
Dry mode. –
Compressor overload protection. Call your dealer
Indoor temperature sensors contact loose / short. Call your dealer
Outdoor temperature & current sensors contact loose / short. Call your dealer
Gas leak / compressor overheat. Call your dealer
Communication error between indoor and outdoor. Call your dealer
Inverter error / PFC error. Call your dealer
Outdoor total current trip / DC peak. Call your dealer
Indoor fan feedback error. Call your dealer
ON ON or OFF Blinking
1-11Inverter Cooling Unit (WMX-G) LED Indicator Lights for Cooling / Heat Pump Unit
English
Sleep Mode Cool Timer Ionizer
IR Receiver
LED indicator lights
LED Indicator Lights : Normal Operationg and Fault Conditions for Cooling / Heat Pump Unit
Normal Operation / Fault Indication Action
Sleep Cool Timer Ionizer
Mode
Cool mode –
Green
Sleep mode on –
Red Green/ Red
Timer on –
Green/ Red Yellow
Ionizer on –
Green/ Red Green
Defrost operation –
Red
Indoor temperature sensor loose / short Call your dealer
Green
Coil temperature sensor loose / short Call your dealer
Outdoor temperature sensor loose / short Call your dealer
Compressor overload protection Call your dealer
Green
IPM / PFC error Call your dealer
Green
Outdoor total current trip / DC peak Call your dealer
Compressor overheat / Gas leak Call your dealer
Indoor fan feedback error Call your dealer
Green
Communication error between indoor Call your dealer
and outdoor
ON ON or OFF Blinking
1-12AIR CONDITIONER UNIT OPERATION
Dry mode Fan speed and rated cooling capacity
• When the air humidity is high, the unit can operate in dry • The rated cooling capacity is provided at the maximum
mode. Press button and choose . fan speed.
• If the room temperature is 2°C/35.6°F higher than the set • The cooling capacity is lower when the unit is operating at
temperature, the air conditioner will operate under cooling MEDIUM and LOW fan speed.
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.
Turbo function
• If the room temperature is within the 2°C/35.6°F range of • If higher cooling or heating is required during operation,
difference compared to the set temperature, it will press "Turbo" button on the remote control to increase the
directly operate under dry mode. cooling or heating capacity to maximum.
• The indoor fan will operate at super low speed under dry • This function will operate for 15 minutes before it resume
mode. to the actual setting.
• The fan noise may be higher if the unit operates in "Turbo"
Horizontal Air Flow Control mode.
• 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. Horizontal
If operating continues in this way, condensation may oc-
Cooling
Dry
cur on the louver, thus resulting in drippings.
25˚C / 77˚F
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.
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.
1-13ELECTROSTATIC FILTER
DUAL ACTION ELECTROSTATIC AIR PURIFYING
AND DEODORIZING FILTER MEDIA AND FILTER FRAME
English
ACTION 1- ACTION 2-
ELECTROSTATIC AIR PURIFYING FILTER DEODORIZING FILTER
Removes microscopic dust, smoke and small invisible Removes unwanted smells and odors in the air and keeps
particles to keep the room air clean with pre-charged the room air fresh with activated carbon filter.
electrostatic polypropylene filter.
HOW TO INSTALL
Open the
front frame
grille.
Insert the dual action
electrostatic and
deodorizing filters
Slide out the original into the slot.
filters.
Slide back the original
filter.
! CAUTION
1. The electrostatic air purifying and deodorizing filter 3. The filter is a consumable part which you can purchase
should be replaced once every 6 months or when the from your air conditioner dealer.
filter changes color to brownish, whichever is sooner.
4. Use the new filter immediately once it has been taken
2. Used dusty filters should be disposed and shouldn't be out from its sealed packing. Do not unpack the new
reused, even if it has been cleaned and washed. 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.
1-14SERVICE AND MAINTENANCE
Service Parts Maintenance Procedures Period
Indoor air filter 1. Remove any dust adhering to the filter by using a vacuum cleaner or At least once
wash in lukewarm water (below 40°C) with a neutral cleaning detergent. every 2 weeks.
2. Rinse the filter well and dry before placing it back onto the unit.
More frequently if
3. Do not use gasoline, volatile substances or chemicals to clean the filter.
necessary.
1. Clean any dirt or dust on the grille or panel by wiping it off with a soft
At least once
Indoor unit cloth soaked in lukewarm water (below 40°C) and a neutral
every 2 weeks.
detergent solution.
More frequently if
2. Do not use gasoline, volatile substances or chemicals to clean the
necessary.
indoor unit.
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
Remove the power plug.
Operate the unit for 2 hours
If you are using an independent
with the following setting.
electric circuit for your unit,
cut off the circuit.
Operating mode : cool
Remove the batteries in the
Temperature : 30°C
remote control.
1-15TROUBLESHOOTING
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.
English
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.
No. Fault Conditions Possible Causes / Corrective Actions
1. The air conditioner unit will not start straight • The air conditioner unit has a 3 minutes restart protection.
away after a power failure or restart of unit. Please wait for the unit to restart by leaving the main power
on.
2. The compressor does not operate 3 minutes after • Protection against frequent starting.
the air conditioner unit is started. • Wait for 3 or 4 minutes for the compressor to start operating
by itself.
3. The air flow is too slow or room cannot be • The air filter is dirty.
cooled sufficiently. • 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.
4. Discharge air flow has bad odour. • 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.
5. Condensation on the front air grille of the indoor • This is caused by air humidity after an extended period of
unit. operation.
• The set temperature is too low, increase the temperature setting
and operate the unit at high fan speed.
6. Water flowing out from the air conditioner unit. • Switch off unit and call dealer. This might be due to tilted
installation.
7. Hissing air flow sound from the air conditioner • Refrigerant fluid flowing into the evaporator coil.
unit during operation.
8. The indoor unit’s LED indication keeps blinking. • 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.
9. The outdoor unit will not operate and the indoor • Power failure or fuse needs to be replaced. Check power
unit’s LED indication does not blink. 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.
1-1610 Compressor Stopped Troubleshooting Instructions
Keep the Main Power Supply ON
➝
DO NOT TOUCH ANY OF THE
Open up the Outdoor Unit’s Top Panel or Service Panel ➝ WIRES INSIDE THE UNIT!
➝
Count the number of blinks
Notice the Yellow LED on the P.C. Board ➝
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.
1-1711 Normal Running Mode Condition
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.
English
One must not attemp to see the LED indication blinking unless instructed to do so.
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
1-18MEMO 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
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